Foreword

Introduction

1 Scope

2 References

3 Requirements

4 Definitions

5 Terminology

6 Documentation Conventions

7 Libraries

8 Libraries

Annex A GNU Free Documentation License (Informative)

Linux Standard Base Specification for the IA32 Architecture 3.1

Linux Standard Base Specification for the IA32 Architecture 3.1
Copyright © 2000, 2001, 2002, 2003, 2004, 2005 Free Standards Group
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".
Portions of the text are copyrighted by the following parties:
•	The Regents of the University of California
•	Free Software Foundation
•	Ian F. Darwin
•	Paul Vixie
•	BSDI (now Wind River)
•	Andrew G Morgan
•	Jean-loup Gailly and Mark Adler
•	Massachusetts Institute of Technology
These excerpts are being used in accordance with their respective licenses.
Linux is a trademark of Linus Torvalds.
UNIX a registered trademark of the Open Group in the United States and other countries.
LSB is a trademark of the Free Standards Group in the USA and other countries.
AMD is a trademark of Advanced Micro Devices, Inc.
Intel and Itanium are registered trademarks and Intel386 is a trademarks of Intel Corporation.
PowerPC and PowerPC Architecture are trademarks of the IBM Corporation.
OpenGL is a registered trademark of Silicon Graphics, Inc.

Contents
Foreword	000
Introduction	000
I Introductory Elements	000
1 Scope	000
1.1 General	000
1.2 Module Specific Scope	000
2 References	000
2.1 Normative References	000
2.2 Informative References/Bibliography	000
3 Requirements	000
3.1 Relevant Libraries	000
3.2 LSB Implementation Conformance	000
3.3 LSB Application Conformance	000
4 Definitions	000
5 Terminology	000
6 Documentation Conventions	000
II Base Libraries	000
7 Libraries	000
7.1 Program Interpreter/Dynamic Linker	000
7.2 Interfaces for libc	000
7.3 Data Definitions for libc	000
7.4 Interfaces for libm	000
7.5 Data Definitions for libm	000
7.6 Interface Definitions for libm	000
7.7 Interfaces for libpthread	000
7.8 Data Definitions for libpthread	000
7.9 Interfaces for libgcc_s	000
7.10 Data Definitions for libgcc_s	000
7.11 Interface Definitions for libgcc_s	000
7.12 Interfaces for libdl	000
7.13 Data Definitions for libdl	000
7.14 Interfaces for libcrypt	000
III Utility Libraries	000
8 Libraries	000
8.1 Interfaces for libz	000
8.2 Data Definitions for libz	000
8.3 Interfaces for libncurses	000
8.4 Data Definitions for libncurses	000
8.5 Interfaces for libutil	000
A GNU Free Documentation License (Informative)	000
A.1 PREAMBLE	000
A.2 APPLICABILITY AND DEFINITIONS	000
A.3 VERBATIM COPYING	000
A.4 COPYING IN QUANTITY	000
A.5 MODIFICATIONS	000
A.6 COMBINING DOCUMENTS	000
A.7 COLLECTIONS OF DOCUMENTS	000
A.8 AGGREGATION WITH INDEPENDENT WORKS	000
A.9 TRANSLATION	000
A.10 TERMINATION	000
A.11 FUTURE REVISIONS OF THIS LICENSE	000
A.12 How to use this License for your documents	000

List of Tables
2-1 Normative References	000
2-2 Other References	000
3-1 Standard Library Names	000
7-1 libc Definition	000
7-2 libc - RPC Function Interfaces	000
7-3 libc - System Calls Function Interfaces	000
7-4 libc - Standard I/O Function Interfaces	000
7-5 libc - Standard I/O Data Interfaces	000
7-6 libc - Signal Handling Function Interfaces	000
7-7 libc - Signal Handling Data Interfaces	000
7-8 libc - Localization Functions Function Interfaces	000
7-9 libc - Localization Functions Data Interfaces	000
7-10 libc - Socket Interface Function Interfaces	000
7-11 libc - Wide Characters Function Interfaces	000
7-12 libc - String Functions Function Interfaces	000
7-13 libc - IPC Functions Function Interfaces	000
7-14 libc - Regular Expressions Function Interfaces	000
7-15 libc - Character Type Functions Function Interfaces	000
7-16 libc - Time Manipulation Function Interfaces	000
7-17 libc - Time Manipulation Data Interfaces	000
7-18 libc - Terminal Interface Functions Function Interfaces	000
7-19 libc - System Database Interface Function Interfaces	000
7-20 libc - Language Support Function Interfaces	000
7-21 libc - Large File Support Function Interfaces	000
7-22 libc - Standard Library Function Interfaces	000
7-23 libc - Standard Library Data Interfaces	000
7-24 libm Definition	000
7-25 libm - Math Function Interfaces	000
7-26 libm - Math Data Interfaces	000
7-27 libpthread Definition	000
7-28 libpthread - Realtime Threads Function Interfaces	000
7-29 libpthread - Posix Threads Function Interfaces	000
7-30 libpthread - Thread aware versions of libc interfaces Function Interfaces	000
7-31 libgcc_s Definition	000
7-32 libgcc_s - Unwind Library Function Interfaces	000
7-33 libdl Definition	000
7-34 libdl - Dynamic Loader Function Interfaces	000
7-35 libcrypt Definition	000
7-36 libcrypt - Encryption Function Interfaces	000
8-1 libz Definition	000
8-2 libncurses Definition	000
8-3 libutil Definition	000
8-4 libutil - Utility Functions Function Interfaces	000

Foreword
This is version 3.1 of the Linux Standard Base Specification for the IA32 Architecture. This specification is part of a family of specifications under the general title "Linux Standard Base". Developers of applications or implementations interested in using the LSB trademark should see the Free Standards Group Certification Policy for details.

Introduction
The LSB defines a binary interface for application programs that are compiled and packaged for LSB-conforming implementations on many different hardware architectures. Since a binary specification shall include information specific to the computer processor architecture for which it is intended, it is not possible for a single document to specify the interface for all possible LSB-conforming implementations. Therefore, the LSB is a family of specifications, rather than a single one.
This document should be used in conjunction with the documents it references. This document enumerates the system components it includes, but descriptions of those components may be included entirely or partly in this document, partly in other documents, or entirely in other reference documents. For example, the section that describes system service routines includes a list of the system routines supported in this interface, formal declarations of the data structures they use that are visible to applications, and a pointer to the underlying referenced specification for information about the syntax and semantics of each call. Only those routines not described in standards referenced by this document, or extensions to those standards, are described in the detail. Information referenced in this way is as much a part of this document as is the information explicitly included here.
The specification carries a version number of either the form x.y or x.y.z. This version number carries the following meaning: 
•	The first number (x) is the major version number. All versions with the same major version number should share binary compatibility. Any addition or deletion of a new library results in a new version number. Interfaces marked as deprecated may be removed from the specification at a major version change.
•	The second number (y) is the minor version number. Individual interfaces may be added if all certified implementations already had that (previously undocumented) interface. Interfaces may be marked as deprecated at a minor version change. Other minor changes may be permitted at the discretion of the LSB workgroup.
•	The third number (z), if present, is the editorial level. Only editorial changes should be included in such versions.
Since this specification is a descriptive Application Binary Interface, and not a source level API specification, it is not possible to make a guarantee of 100% backward compatibility between major releases. However, it is the intent that those parts of the binary interface that are visible in the source level API will remain backward compatible from version to version, except where a feature marked as "Deprecated" in one release may be removed from a future release.
Implementors are strongly encouraged to make use of symbol versioning to permit simultaneous support of applications conforming to different releases of this specification.

I Introductory Elements

1 Scope
1.1 General
The Linux Standard Base (LSB) defines a system interface for compiled applications and a minimal environment for support of installation scripts. Its purpose is to enable a uniform industry standard environment for high-volume applications conforming to the LSB.
These specifications are composed of two basic parts: A common specification ("LSB-generic" or "generic LSB") describing those parts of the interface that remain constant across all implementations of the LSB, and an architecture-specific supplement ("LSB-arch" or "archLSB") describing the parts of the interface that vary by processor architecture. Together, the LSB-generic and the architecture-specific supplement for a single hardware architecture provide a complete interface specification for compiled application programs on systems that share a common hardware architecture.
The LSB-generic document shall be used in conjunction with an architecture-specific supplement. Whenever a section of the LSB-generic specification shall be supplemented by architecture-specific information, the LSB-generic document includes a reference to the architecture supplement. Architecture supplements may also contain additional information that is not referenced in the LSB-generic document.
The LSB contains both a set of Application Program Interfaces (APIs) and Application Binary Interfaces (ABIs). APIs may appear in the source code of portable applications, while the compiled binary of that application may use the larger set of ABIs. A conforming implementation shall provide all of the ABIs listed here. The compilation system may replace (e.g. by macro definition) certain APIs with calls to one or more of the underlying binary interfaces, and may insert calls to binary interfaces as needed.
The LSB is primarily a binary interface definition. Not all of the source level APIs available to applications may be contained in this specification.
1.2 Module Specific Scope
This is the IA32 architecture specific Core module of the Linux Standards Base (LSB). This module supplements the generic LSB Core module with those interfaces that differ between architectures.
Interfaces described in this module are mandatory except where explicitly listed otherwise. Core interfaces may be supplemented by other modules; all modules are built upon the core.

2 References
2.1 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
Note: Where copies of a document are available on the World Wide Web, a Uniform Resource Locator (URL) is given for informative purposes only. This may point to a more recent copy of the referenced specification, or may be out of date. Reference copies of specifications at the revision level indicated may be found at the Free Standards Group's Reference Specifications (http://refspecs.freestandards.org) site.
Table 2-1 Normative References
Name | Title | URL
Filesystem Hierarchy Standard | Filesystem Hierarchy Standard (FHS) 2.3 | http://www.pathname.com/fhs/
IEC 60559/IEEE 754 Floating Point | IEC 60559:1989 Binary floating-point arithmetic for microprocessor systems | http://www.ieee.org/
Intel® Architecture Software Developer's Manual Volume 1 | The IA-32 Intel® Architecture Software Developer's Manual Volume 1: Basic Architecture | http://developer.intel.com/design/pentium4/manuals/245470.htm
Intel® Architecture Software Developer's Manual Volume 2 | The IA-32 Intel® Architecture Software Developer's Manual Volume 2: Instruction Set Reference | http://developer.intel.com/design/pentium4/manuals/245471.htm
Intel® Architecture Software Developer's Manual Volume 3 | The IA-32 Intel® Architecture Software Developer's Manual Volume 3: System Programming Guide | http://developer.intel.com/design/pentium4/manuals/245472.htm
ISO C (1999) | ISO/IEC 9899: 1999, Programming Languages --C |

ISO POSIX (2003)

ISO/IEC 9945-1:2003 Information technology -- Portable Operating System Interface (POSIX) -- Part 1: Base Definitions
ISO/IEC 9945-2:2003 Information technology -- Portable Operating System Interface (POSIX) -- Part 2: System Interfaces
ISO/IEC 9945-3:2003 Information technology -- Portable Operating System Interface (POSIX) -- Part 3: Shell and Utilities
ISO/IEC 9945-4:2003 Information technology -- Portable Operating System Interface (POSIX) -- Part 4: Rationale
Including Technical Cor. 1: 2004

http://www.unix.org/version3/

ISO/IEC 14882: 2003 C++ Language | ISO/IEC 14882: 2003 Programming languages --C++ |
Itanium C++ ABI | Itanium C++ ABI (Revision 1.83) | http://refspecs.freestandards.org/cxxabi-1.83.html
Large File Support | Large File Support | http://www.UNIX-systems.org/version2/whatsnew/lfs20mar.html
SUSv2 | CAE Specification, January 1997, System Interfaces and Headers (XSH),Issue 5 (ISBN: 1-85912-181-0, C606) | http://www.opengroup.org/publications/catalog/un.htm
SUSv2 Commands and Utilities | The Single UNIX® Specification(SUS) Version 2, Commands and Utilities (XCU), Issue 5 (ISBN: 1-85912-191-8, C604) | http://www.opengroup.org/publications/catalog/un.htm
SVID Issue 3 | American Telephone and Telegraph Company, System V Interface Definition, Issue 3 ; Morristown, NJ, UNIX Press, 1989.(ISBN 0201566524) |
SVID Issue 4 | System V Interface Definition,Fourth Edition |
System V ABI | System V Application Binary Interface, Edition 4.1 | http://www.caldera.com/developers/devspecs/gabi41.pdf
System V ABI Update | System V Application Binary Interface - DRAFT - 17 December 2003 | http://www.caldera.com/developers/gabi/2003-12-17/contents.html
System V ABI, IA32 Supplement | System V Application Binary Interface - Intel386™ Architecture Processor Supplement, Fourth Edition | http://www.caldera.com/developers/devspecs/abi386-4.pdf
X/Open Curses | CAE Specification, May 1996, X/Open Curses, Issue 4, Version 2 (ISBN: 1-85912-171-3, C610), plus Corrigendum U018 | http://www.opengroup.org/publications/catalog/un.htm

2.2 Informative References/Bibliography
In addition, the specifications listed below provide essential background information to implementors of this specification. These references are included for information only.
Table 2-2 Other References
Name | Title | URL
DWARF Debugging Information Format, Revision 2.0.0 | DWARF Debugging Information Format, Revision 2.0.0 (July 27, 1993) | http://refspecs.freestandards.org/dwarf/dwarf-2.0.0.pdf
DWARF Debugging Information Format, Revision 3.0.0 (Draft) | DWARF Debugging Information Format, Revision 3.0.0 (Draft) | http://refspecs.freestandards.org/dwarf/
ISO/IEC TR14652 | ISO/IEC Technical Report 14652:2002 Specification method for cultural conventions |
ITU-T V.42 | International Telecommunication Union Recommendation V.42 (2002): Error-correcting procedures for DCEs using asynchronous-to-synchronous conversionITUV | http://www.itu.int/rec/recommendation.asp?type=folders&lang=e&parent=T-REC-V.42
Li18nux Globalization Specification | LI18NUX 2000 Globalization Specification, Version 1.0 with Amendment 4 | http://www.li18nux.org/docs/html/LI18NUX-2000-amd4.htm
Linux Allocated Device Registry | LINUX ALLOCATED DEVICES | http://www.lanana.org/docs/device-list/devices.txt
PAM | Open Software Foundation, Request For Comments: 86.0 , October 1995, V. Samar & R.Schemers (SunSoft) | http://www.opengroup.org/tech/rfc/mirror-rfc/rfc86.0.txt
RFC 1321: The MD5 Message-Digest Algorithm | IETF RFC 1321: The MD5 Message-Digest Algorithm | http://www.ietf.org/rfc/rfc1321.txt
RFC 1831/1832 RPC & XDR | IETF RFC 1831 & 1832 | http://www.ietf.org/
RFC 1833: Binding Protocols for ONC RPC Version 2 | IETF RFC 1833: Binding Protocols for ONC RPC Version 2 | http://www.ietf.org/rfc/rfc1833.txt
RFC 1950: ZLIB Compressed Data Format Specication | IETF RFC 1950: ZLIB Compressed Data Format Specification | http://www.ietf.org/rfc/rfc1950.txt
RFC 1951: DEFLATE Compressed Data Format Specification | IETF RFC 1951: DEFLATE Compressed Data Format Specification version 1.3 | http://www.ietf.org/rfc/rfc1951.txt
RFC 1952: GZIP File Format Specification | IETF RFC 1952: GZIP file format specification version 4.3 | http://www.ietf.org/rfc/rfc1952.txt
RFC 2440: OpenPGP Message Format | IETF RFC 2440: OpenPGP Message Format | http://www.ietf.org/rfc/rfc2440.txt
RFC 2821:Simple Mail Transfer Protocol | IETF RFC 2821: Simple Mail Transfer Protocol | http://www.ietf.org/rfc/rfc2821.txt
RFC 2822:Internet Message Format | IETF RFC 2822: Internet Message Format | http://www.ietf.org/rfc/rfc2822.txt
RFC 791:Internet Protocol | IETF RFC 791: Internet Protocol Specification | http://www.ietf.org/rfc/rfc791.txt
RPM Package Format | RPM Package Format V3.0 | http://www.rpm.org/max-rpm/s1-rpm-file-format-rpm-file-format.html
zlib Manual | zlib 1.2 Manual | http://www.gzip.org/zlib/

3 Requirements
3.1 Relevant Libraries
The libraries listed in Table 3-1 shall be available on IA32 Linux Standard Base systems, with the specified runtime names. These names override or supplement the names specified in the generic LSB specification. The specified program interpreter, referred to as proginterp in this table, shall be used to load the shared libraries specified by DT_NEEDED entries at run time.
Table 3-1 Standard Library Names
Library | Runtime Name
libm | libm.so.6
libdl | libdl.so.2
libcrypt | libcrypt.so.1
libz | libz.so.1
libncurses | libncurses.so.5
libutil | libutil.so.1
libc | libc.so.6
libpthread | libpthread.so.0
proginterp | /lib/ld-lsb.so.3
libgcc_s | libgcc_s.so.1

These libraries will be in an implementation-defined directory which the dynamic linker shall search by default.
3.2 LSB Implementation Conformance
A conforming implementation is necessarily architecture specific, and must provide the interfaces specified by both the generic LSB Core specification and its relevant architecture specific supplement. 
Rationale: An implementation must provide at least the interfaces specified in these specifications. It may also provide additional interfaces.
A conforming implementation shall satisfy the following requirements:
•	A processor architecture represents a family of related processors which may not have identical feature sets. The architecture specific supplement to this specification for a given target processor architecture describes a minimum acceptable processor. The implementation shall provide all features of this processor, whether in hardware or through emulation transparent to the application.
•	The implementation shall be capable of executing compiled applications having the format and using the system interfaces described in this document.
•	The implementation shall provide libraries containing the interfaces specified by this document, and shall provide a dynamic linking mechanism that allows these interfaces to be attached to applications at runtime. All the interfaces shall behave as specified in this document.
•	The map of virtual memory provided by the implementation shall conform to the requirements of this document.
•	The implementation's low-level behavior with respect to function call linkage, system traps, signals, and other such activities shall conform to the formats described in this document.
•	The implementation shall provide all of the mandatory interfaces in their entirety.
•	The implementation may provide one or more of the optional interfaces. Each optional interface that is provided shall be provided in its entirety. The product documentation shall state which optional interfaces are provided.
•	The implementation shall provide all files and utilities specified as part of this document in the format defined here and in other referenced documents. All commands and utilities shall behave as required by this document. The implementation shall also provide all mandatory components of an application's runtime environment that are included or referenced in this document.
•	The implementation, when provided with standard data formats and values at a named interface, shall provide the behavior defined for those values and data formats at that interface. However, a conforming implementation may consist of components which are separately packaged and/or sold. For example, a vendor of a conforming implementation might sell the hardware, operating system, and windowing system as separately packaged items.
•	The implementation may provide additional interfaces with different names. It may also provide additional behavior corresponding to data values outside the standard ranges, for standard named interfaces.
3.3 LSB Application Conformance
A conforming application is necessarily architecture specific, and must conform to both the generic LSB Core specification and its relevant architecture specific supplement.
A conforming application shall satisfy the following requirements:
•	Its executable files shall be either shell scripts or object files in the format defined for the Object File Format system interface.
•	Its object files shall participate in dynamic linking as defined in the Program Loading and Linking System interface.
•	It shall employ only the instructions, traps, and other low-level facilities defined in the Low-Level System interface as being for use by applications.
•	If it requires any optional interface defined in this document in order to be installed or to execute successfully, the requirement for that optional interface shall be stated in the application's documentation.
•	It shall not use any interface or data format that is not required to be provided by a conforming implementation, unless: 
•	If such an interface or data format is supplied by another application through direct invocation of that application during execution, that application shall be in turn an LSB conforming application.
•	The use of that interface or data format, as well as its source, shall be identified in the documentation of the application.
•	It shall not use any values for a named interface that are reserved for vendor extensions.
A strictly conforming application shall not require or use any interface, facility, or implementation-defined extension that is not defined in this document in order to be installed or to execute successfully.

4 Definitions
For the purposes of this document, the following definitions, as specified in the ISO/IEC Directives, Part 2, 2001, 4th Edition, apply:
can
 	be able to; there is a possibility of; it is possible to
cannot
 	be unable to; there is no possibilty of; it is not possible to
may
 	is permitted; is allowed; is permissible
need not
 	it is not required that; no...is required
shall
 	is to; is required to; it is required that; has to; only...is permitted; it is necessary
shall not
 	is not allowed [permitted] [acceptable] [permissible]; is required to be not; is required that...be not; is not to be
should
 	it is recommended that; ought to
should not
 	it is not recommended that; ought not to

5 Terminology
For the purposes of this document, the following terms apply:
archLSB
 	The architectural part of the LSB Specification which describes the specific parts of the interface that are platform specific. The archLSB is complementary to the gLSB.
Binary Standard
 	The total set of interfaces that are available to be used in the compiled binary code of a conforming application.
gLSB
 	The common part of the LSB Specification that describes those parts of the interface that remain constant across all hardware implementations of the LSB.
implementation-defined
 	Describes a value or behavior that is not defined by this document but is selected by an implementor. The value or behavior may vary among implementations that conform to this document. An application should not rely on the existence of the value or behavior. An application that relies on such a value or behavior cannot be assured to be portable across conforming implementations. The implementor shall document such a value or behavior so that it can be used correctly by an application.
Shell Script
 	A file that is read by an interpreter (e.g., awk). The first line of the shell script includes a reference to its interpreter binary.
Source Standard
 	The set of interfaces that are available to be used in the source code of a conforming application.
undefined
 	Describes the nature of a value or behavior not defined by this document which results from use of an invalid program construct or invalid data input. The value or behavior may vary among implementations that conform to this document. An application should not rely on the existence or validity of the value or behavior. An application that relies on any particular value or behavior cannot be assured to be portable across conforming implementations.
unspecified
 	Describes the nature of a value or behavior not specified by this document which results from use of a valid program construct or valid data input. The value or behavior may vary among implementations that conform to this document. An application should not rely on the existence or validity of the value or behavior. An application that relies on any particular value or behavior cannot be assured to be portable across conforming implementations.
Other terms and definitions used in this document shall have the same meaning as defined in Chapter 3 of the Base Definitions volume of ISO POSIX (2003).

6 Documentation Conventions
Throughout this document, the following typographic conventions are used: 
function()
 	the name of a function
command
 	the name of a command or utility
CONSTANT
 	a constant value
parameter
 	a parameter
variable
 	a variable
Throughout this specification, several tables of interfaces are presented. Each entry in these tables has the following format: 
name
 	the name of the interface
(symver)
 	An optional symbol version identifier, if required.
[refno]
 	A reference number indexing the table of referenced specifications that follows this table.
For example, 
forkpty(GLIBC_2.0) [SUSv3]

refers to the interface named forkpty() with symbol version GLIBC_2.0 that is defined in the SUSv3 reference. 
Note: Symbol versions are defined in the architecture specific supplements only.

II Base Libraries

7 Libraries
An LSB-conforming implementation shall support some base libraries which provide interfaces for accessing the operating system, processor and other hardware in the system.
Interfaces that are unique to the IA32 platform are defined here. This section should be used in conjunction with the corresponding section in the Linux Standard Base Specification.
7.1 Program Interpreter/Dynamic Linker
The Program Interpreter shall be /lib/ld-lsb.so.3.
7.2 Interfaces for libc
Table 7-1 defines the library name and shared object name for the libc library
Table 7-1 libc Definition
Library: | libc
SONAME: | libc.so.6

The behavior of the interfaces in this library is specified by the following specifications:
[LFS] Large File Support
[LSB] This Specification
[SUSv2] SUSv2
[SUSv3] ISO POSIX (2003)
[SVID.3] SVID Issue 3
[SVID.4] SVID Issue 4

7.2.1 RPC
7.2.1.1 Interfaces for RPC
An LSB conforming implementation shall provide the architecture specific functions for RPC specified in Table 7-2, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-2 libc - RPC Function Interfaces
authnone_create(GLIBC_2.0) [SVID.4] | clnt_create(GLIBC_2.0) [SVID.4] | clnt_pcreateerror(GLIBC_2.0) [SVID.4] | clnt_perrno(GLIBC_2.0) [SVID.4]
clnt_perror(GLIBC_2.0) [SVID.4] | clnt_spcreateerror(GLIBC_2.0) [SVID.4] | clnt_sperrno(GLIBC_2.0) [SVID.4] | clnt_sperror(GLIBC_2.0) [SVID.4]
key_decryptsession(GLIBC_2.1) [SVID.3] | pmap_getport(GLIBC_2.0) [LSB] | pmap_set(GLIBC_2.0) [LSB] | pmap_unset(GLIBC_2.0) [LSB]
svc_getreqset(GLIBC_2.0) [SVID.3] | svc_register(GLIBC_2.0) [LSB] | svc_run(GLIBC_2.0) [LSB] | svc_sendreply(GLIBC_2.0) [LSB]
svcerr_auth(GLIBC_2.0) [SVID.3] | svcerr_decode(GLIBC_2.0) [SVID.3] | svcerr_noproc(GLIBC_2.0) [SVID.3] | svcerr_noprog(GLIBC_2.0) [SVID.3]
svcerr_progvers(GLIBC_2.0) [SVID.3] | svcerr_systemerr(GLIBC_2.0) [SVID.3] | svcerr_weakauth(GLIBC_2.0) [SVID.3] | svctcp_create(GLIBC_2.0) [LSB]
svcudp_create(GLIBC_2.0) [LSB] | xdr_accepted_reply(GLIBC_2.0) [SVID.3] | xdr_array(GLIBC_2.0) [SVID.3] | xdr_bool(GLIBC_2.0) [SVID.3]
xdr_bytes(GLIBC_2.0) [SVID.3] | xdr_callhdr(GLIBC_2.0) [SVID.3] | xdr_callmsg(GLIBC_2.0) [SVID.3] | xdr_char(GLIBC_2.0) [SVID.3]
xdr_double(GLIBC_2.0) [SVID.3] | xdr_enum(GLIBC_2.0) [SVID.3] | xdr_float(GLIBC_2.0) [SVID.3] | xdr_free(GLIBC_2.0) [SVID.3]
xdr_int(GLIBC_2.0) [SVID.3] | xdr_long(GLIBC_2.0) [SVID.3] | xdr_opaque(GLIBC_2.0) [SVID.3] | xdr_opaque_auth(GLIBC_2.0) [SVID.3]
xdr_pointer(GLIBC_2.0) [SVID.3] | xdr_reference(GLIBC_2.0) [SVID.3] | xdr_rejected_reply(GLIBC_2.0) [SVID.3] | xdr_replymsg(GLIBC_2.0) [SVID.3]
xdr_short(GLIBC_2.0) [SVID.3] | xdr_string(GLIBC_2.0) [SVID.3] | xdr_u_char(GLIBC_2.0) [SVID.3] | xdr_u_int(GLIBC_2.0) [LSB]
xdr_u_long(GLIBC_2.0) [SVID.3] | xdr_u_short(GLIBC_2.0) [SVID.3] | xdr_union(GLIBC_2.0) [SVID.3] | xdr_vector(GLIBC_2.0) [SVID.3]
xdr_void(GLIBC_2.0) [SVID.3] | xdr_wrapstring(GLIBC_2.0) [SVID.3] | xdrmem_create(GLIBC_2.0) [SVID.3] | xdrrec_create(GLIBC_2.0) [SVID.3]
xdrrec_eof(GLIBC_2.0) [SVID.3] | | |

7.2.2 System Calls
7.2.2.1 Interfaces for System Calls
An LSB conforming implementation shall provide the architecture specific functions for System Calls specified in Table 7-3, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-3 libc - System Calls Function Interfaces
__fxstat(GLIBC_2.0) [LSB] | __getpgid(GLIBC_2.0) [LSB] | __lxstat(GLIBC_2.0) [LSB] | __xmknod(GLIBC_2.0) [LSB]
__xstat(GLIBC_2.0) [LSB] | access(GLIBC_2.0) [SUSv3] | acct(GLIBC_2.0) [LSB] | alarm(GLIBC_2.0) [SUSv3]
brk(GLIBC_2.0) [SUSv2] | chdir(GLIBC_2.0) [SUSv3] | chmod(GLIBC_2.0) [SUSv3] | chown(GLIBC_2.1) [SUSv3]
chroot(GLIBC_2.0) [SUSv2] | clock(GLIBC_2.0) [SUSv3] | close(GLIBC_2.0) [SUSv3] | closedir(GLIBC_2.0) [SUSv3]
creat(GLIBC_2.0) [SUSv3] | dup(GLIBC_2.0) [SUSv3] | dup2(GLIBC_2.0) [SUSv3] | execl(GLIBC_2.0) [SUSv3]
execle(GLIBC_2.0) [SUSv3] | execlp(GLIBC_2.0) [SUSv3] | execv(GLIBC_2.0) [SUSv3] | execve(GLIBC_2.0) [SUSv3]
execvp(GLIBC_2.0) [SUSv3] | exit(GLIBC_2.0) [SUSv3] | fchdir(GLIBC_2.0) [SUSv3] | fchmod(GLIBC_2.0) [SUSv3]
fchown(GLIBC_2.0) [SUSv3] | fcntl(GLIBC_2.0) [LSB] | fdatasync(GLIBC_2.0) [SUSv3] | flock(GLIBC_2.0) [LSB]
fork(GLIBC_2.0) [SUSv3] | fstatvfs(GLIBC_2.1) [SUSv3] | fsync(GLIBC_2.0) [SUSv3] | ftime(GLIBC_2.0) [SUSv3]
ftruncate(GLIBC_2.0) [SUSv3] | getcontext(GLIBC_2.1) [SUSv3] | getegid(GLIBC_2.0) [SUSv3] | geteuid(GLIBC_2.0) [SUSv3]
getgid(GLIBC_2.0) [SUSv3] | getgroups(GLIBC_2.0) [SUSv3] | getitimer(GLIBC_2.0) [SUSv3] | getloadavg(GLIBC_2.2) [LSB]
getpagesize(GLIBC_2.0) [SUSv2] | getpgid(GLIBC_2.0) [SUSv3] | getpgrp(GLIBC_2.0) [SUSv3] | getpid(GLIBC_2.0) [SUSv3]
getppid(GLIBC_2.0) [SUSv3] | getpriority(GLIBC_2.0) [SUSv3] | getrlimit(GLIBC_2.2) [SUSv3] | getrusage(GLIBC_2.0) [SUSv3]
getsid(GLIBC_2.0) [SUSv3] | getuid(GLIBC_2.0) [SUSv3] | getwd(GLIBC_2.0) [SUSv3] | initgroups(GLIBC_2.0) [LSB]
ioctl(GLIBC_2.0) [LSB] | kill(GLIBC_2.0) [LSB] | killpg(GLIBC_2.0) [SUSv3] | lchown(GLIBC_2.0) [SUSv3]
link(GLIBC_2.0) [LSB] | lockf(GLIBC_2.0) [SUSv3] | lseek(GLIBC_2.0) [SUSv3] | mkdir(GLIBC_2.0) [SUSv3]
mkfifo(GLIBC_2.0) [SUSv3] | mlock(GLIBC_2.0) [SUSv3] | mlockall(GLIBC_2.0) [SUSv3] | mmap(GLIBC_2.0) [SUSv3]
mprotect(GLIBC_2.0) [SUSv3] | msync(GLIBC_2.0) [SUSv3] | munlock(GLIBC_2.0) [SUSv3] | munlockall(GLIBC_2.0) [SUSv3]
munmap(GLIBC_2.0) [SUSv3] | nanosleep(GLIBC_2.0) [SUSv3] | nice(GLIBC_2.0) [SUSv3] | open(GLIBC_2.0) [SUSv3]
opendir(GLIBC_2.0) [SUSv3] | pathconf(GLIBC_2.0) [SUSv3] | pause(GLIBC_2.0) [SUSv3] | pipe(GLIBC_2.0) [SUSv3]
poll(GLIBC_2.0) [SUSv3] | read(GLIBC_2.0) [SUSv3] | readdir(GLIBC_2.0) [SUSv3] | readdir_r(GLIBC_2.0) [SUSv3]
readlink(GLIBC_2.0) [SUSv3] | readv(GLIBC_2.0) [SUSv3] | rename(GLIBC_2.0) [SUSv3] | rmdir(GLIBC_2.0) [SUSv3]
sbrk(GLIBC_2.0) [SUSv2] | sched_get_priority_max(GLIBC_2.0) [SUSv3] | sched_get_priority_min(GLIBC_2.0) [SUSv3] | sched_getparam(GLIBC_2.0) [SUSv3]
sched_getscheduler(GLIBC_2.0) [SUSv3] | sched_rr_get_interval(GLIBC_2.0) [SUSv3] | sched_setparam(GLIBC_2.0) [SUSv3] | sched_setscheduler(GLIBC_2.0) [SUSv3]
sched_yield(GLIBC_2.0) [SUSv3] | select(GLIBC_2.0) [SUSv3] | setcontext(GLIBC_2.0) [SUSv3] | setegid(GLIBC_2.0) [SUSv3]
seteuid(GLIBC_2.0) [SUSv3] | setgid(GLIBC_2.0) [SUSv3] | setitimer(GLIBC_2.0) [SUSv3] | setpgid(GLIBC_2.0) [SUSv3]
setpgrp(GLIBC_2.0) [SUSv3] | setpriority(GLIBC_2.0) [SUSv3] | setregid(GLIBC_2.0) [SUSv3] | setreuid(GLIBC_2.0) [SUSv3]
setrlimit(GLIBC_2.2) [SUSv3] | setrlimit64(GLIBC_2.1) [LFS] | setsid(GLIBC_2.0) [SUSv3] | setuid(GLIBC_2.0) [SUSv3]
sleep(GLIBC_2.0) [SUSv3] | statvfs(GLIBC_2.1) [SUSv3] | stime(GLIBC_2.0) [LSB] | symlink(GLIBC_2.0) [SUSv3]
sync(GLIBC_2.0) [SUSv3] | sysconf(GLIBC_2.0) [SUSv3] | time(GLIBC_2.0) [SUSv3] | times(GLIBC_2.0) [SUSv3]
truncate(GLIBC_2.0) [SUSv3] | ulimit(GLIBC_2.0) [SUSv3] | umask(GLIBC_2.0) [SUSv3] | uname(GLIBC_2.0) [SUSv3]
unlink(GLIBC_2.0) [LSB] | utime(GLIBC_2.0) [SUSv3] | utimes(GLIBC_2.0) [SUSv3] | vfork(GLIBC_2.0) [SUSv3]
wait(GLIBC_2.0) [SUSv3] | wait4(GLIBC_2.0) [LSB] | waitpid(GLIBC_2.0) [LSB] | write(GLIBC_2.0) [SUSv3]
writev(GLIBC_2.0) [SUSv3] | | |

7.2.3 Standard I/O
7.2.3.1 Interfaces for Standard I/O
An LSB conforming implementation shall provide the architecture specific functions for Standard I/O specified in Table 7-4, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-4 libc - Standard I/O Function Interfaces
_IO_feof(GLIBC_2.0) [LSB] | _IO_getc(GLIBC_2.0) [LSB] | _IO_putc(GLIBC_2.0) [LSB] | _IO_puts(GLIBC_2.0) [LSB]
asprintf(GLIBC_2.0) [LSB] | clearerr(GLIBC_2.0) [SUSv3] | ctermid(GLIBC_2.0) [SUSv3] | fclose(GLIBC_2.1) [SUSv3]
fdopen(GLIBC_2.1) [SUSv3] | feof(GLIBC_2.0) [SUSv3] | ferror(GLIBC_2.0) [SUSv3] | fflush(GLIBC_2.0) [SUSv3]
fflush_unlocked(GLIBC_2.0) [LSB] | fgetc(GLIBC_2.0) [SUSv3] | fgetpos(GLIBC_2.2) [SUSv3] | fgets(GLIBC_2.0) [SUSv3]
fgetwc_unlocked(GLIBC_2.2) [LSB] | fileno(GLIBC_2.0) [SUSv3] | flockfile(GLIBC_2.0) [SUSv3] | fopen(GLIBC_2.1) [SUSv3]
fprintf(GLIBC_2.0) [SUSv3] | fputc(GLIBC_2.0) [SUSv3] | fputs(GLIBC_2.0) [SUSv3] | fread(GLIBC_2.0) [SUSv3]
freopen(GLIBC_2.0) [SUSv3] | fscanf(GLIBC_2.0) [LSB] | fseek(GLIBC_2.0) [SUSv3] | fseeko(GLIBC_2.1) [SUSv3]
fsetpos(GLIBC_2.2) [SUSv3] | ftell(GLIBC_2.0) [SUSv3] | ftello(GLIBC_2.1) [SUSv3] | fwrite(GLIBC_2.0) [SUSv3]
getc(GLIBC_2.0) [SUSv3] | getc_unlocked(GLIBC_2.0) [SUSv3] | getchar(GLIBC_2.0) [SUSv3] | getchar_unlocked(GLIBC_2.0) [SUSv3]
getw(GLIBC_2.0) [SUSv2] | pclose(GLIBC_2.1) [SUSv3] | popen(GLIBC_2.1) [SUSv3] | printf(GLIBC_2.0) [SUSv3]
putc(GLIBC_2.0) [SUSv3] | putc_unlocked(GLIBC_2.0) [SUSv3] | putchar(GLIBC_2.0) [SUSv3] | putchar_unlocked(GLIBC_2.0) [SUSv3]
puts(GLIBC_2.0) [SUSv3] | putw(GLIBC_2.0) [SUSv2] | remove(GLIBC_2.0) [SUSv3] | rewind(GLIBC_2.0) [SUSv3]
rewinddir(GLIBC_2.0) [SUSv3] | scanf(GLIBC_2.0) [LSB] | seekdir(GLIBC_2.0) [SUSv3] | setbuf(GLIBC_2.0) [SUSv3]
setbuffer(GLIBC_2.0) [LSB] | setvbuf(GLIBC_2.0) [SUSv3] | snprintf(GLIBC_2.0) [SUSv3] | sprintf(GLIBC_2.0) [SUSv3]
sscanf(GLIBC_2.0) [LSB] | telldir(GLIBC_2.0) [SUSv3] | tempnam(GLIBC_2.0) [SUSv3] | ungetc(GLIBC_2.0) [SUSv3]
vasprintf(GLIBC_2.0) [LSB] | vdprintf(GLIBC_2.0) [LSB] | vfprintf(GLIBC_2.0) [SUSv3] | vprintf(GLIBC_2.0) [SUSv3]
vsnprintf(GLIBC_2.0) [SUSv3] | vsprintf(GLIBC_2.0) [SUSv3] | |

An LSB conforming implementation shall provide the architecture specific data interfaces for Standard I/O specified in Table 7-5, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-5 libc - Standard I/O Data Interfaces
stderr(GLIBC_2.0) [SUSv3] | stdin(GLIBC_2.0) [SUSv3] | stdout(GLIBC_2.0) [SUSv3] |

7.2.4 Signal Handling
7.2.4.1 Interfaces for Signal Handling
An LSB conforming implementation shall provide the architecture specific functions for Signal Handling specified in Table 7-6, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-6 libc - Signal Handling Function Interfaces
__libc_current_sigrtmax(GLIBC_2.1) [LSB] | __libc_current_sigrtmin(GLIBC_2.1) [LSB] | __sigsetjmp(GLIBC_2.0) [LSB] | __sysv_signal(GLIBC_2.0) [LSB]
bsd_signal(GLIBC_2.0) [SUSv3] | psignal(GLIBC_2.0) [LSB] | raise(GLIBC_2.0) [SUSv3] | sigaction(GLIBC_2.0) [SUSv3]
sigaddset(GLIBC_2.0) [SUSv3] | sigaltstack(GLIBC_2.0) [SUSv3] | sigandset(GLIBC_2.0) [LSB] | sigdelset(GLIBC_2.0) [SUSv3]
sigemptyset(GLIBC_2.0) [SUSv3] | sigfillset(GLIBC_2.0) [SUSv3] | sighold(GLIBC_2.1) [SUSv3] | sigignore(GLIBC_2.1) [SUSv3]
siginterrupt(GLIBC_2.0) [SUSv3] | sigisemptyset(GLIBC_2.0) [LSB] | sigismember(GLIBC_2.0) [SUSv3] | siglongjmp(GLIBC_2.0) [SUSv3]
signal(GLIBC_2.0) [SUSv3] | sigorset(GLIBC_2.0) [LSB] | sigpause(GLIBC_2.0) [SUSv3] | sigpending(GLIBC_2.0) [SUSv3]
sigprocmask(GLIBC_2.0) [SUSv3] | sigqueue(GLIBC_2.1) [SUSv3] | sigrelse(GLIBC_2.1) [SUSv3] | sigreturn(GLIBC_2.0) [LSB]
sigset(GLIBC_2.1) [SUSv3] | sigsuspend(GLIBC_2.0) [SUSv3] | sigtimedwait(GLIBC_2.1) [SUSv3] | sigwait(GLIBC_2.0) [SUSv3]
sigwaitinfo(GLIBC_2.1) [SUSv3] | | |

An LSB conforming implementation shall provide the architecture specific data interfaces for Signal Handling specified in Table 7-7, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-7 libc - Signal Handling Data Interfaces
_sys_siglist(GLIBC_2.3.3) [LSB] | | |

7.2.5 Localization Functions
7.2.5.1 Interfaces for Localization Functions
An LSB conforming implementation shall provide the architecture specific functions for Localization Functions specified in Table 7-8, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-8 libc - Localization Functions Function Interfaces
bind_textdomain_codeset(GLIBC_2.2) [LSB] | bindtextdomain(GLIBC_2.0) [LSB] | catclose(GLIBC_2.0) [SUSv3] | catgets(GLIBC_2.0) [SUSv3]
catopen(GLIBC_2.0) [SUSv3] | dcgettext(GLIBC_2.0) [LSB] | dcngettext(GLIBC_2.2) [LSB] | dgettext(GLIBC_2.0) [LSB]
dngettext(GLIBC_2.2) [LSB] | gettext(GLIBC_2.0) [LSB] | iconv(GLIBC_2.1) [SUSv3] | iconv_close(GLIBC_2.1) [SUSv3]
iconv_open(GLIBC_2.1) [SUSv3] | localeconv(GLIBC_2.2) [SUSv3] | ngettext(GLIBC_2.2) [LSB] | nl_langinfo(GLIBC_2.0) [SUSv3]
setlocale(GLIBC_2.0) [SUSv3] | textdomain(GLIBC_2.0) [LSB] | |

An LSB conforming implementation shall provide the architecture specific data interfaces for Localization Functions specified in Table 7-9, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-9 libc - Localization Functions Data Interfaces
_nl_msg_cat_cntr(GLIBC_2.0) [LSB] | | |

7.2.6 Socket Interface
7.2.6.1 Interfaces for Socket Interface
An LSB conforming implementation shall provide the architecture specific functions for Socket Interface specified in Table 7-10, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-10 libc - Socket Interface Function Interfaces
__h_errno_location(GLIBC_2.0) [LSB] | accept(GLIBC_2.0) [SUSv3] | bind(GLIBC_2.0) [SUSv3] | bindresvport(GLIBC_2.0) [LSB]
connect(GLIBC_2.0) [SUSv3] | gethostid(GLIBC_2.0) [SUSv3] | gethostname(GLIBC_2.0) [SUSv3] | getpeername(GLIBC_2.0) [SUSv3]
getsockname(GLIBC_2.0) [SUSv3] | getsockopt(GLIBC_2.0) [LSB] | if_freenameindex(GLIBC_2.1) [SUSv3] | if_indextoname(GLIBC_2.1) [SUSv3]
if_nameindex(GLIBC_2.1) [SUSv3] | if_nametoindex(GLIBC_2.1) [SUSv3] | listen(GLIBC_2.0) [SUSv3] | recv(GLIBC_2.0) [SUSv3]
recvfrom(GLIBC_2.0) [SUSv3] | recvmsg(GLIBC_2.0) [SUSv3] | send(GLIBC_2.0) [SUSv3] | sendmsg(GLIBC_2.0) [SUSv3]
sendto(GLIBC_2.0) [SUSv3] | setsockopt(GLIBC_2.0) [LSB] | shutdown(GLIBC_2.0) [SUSv3] | sockatmark(GLIBC_2.2.4) [SUSv3]
socket(GLIBC_2.0) [SUSv3] | socketpair(GLIBC_2.0) [SUSv3] | |

7.2.7 Wide Characters
7.2.7.1 Interfaces for Wide Characters
An LSB conforming implementation shall provide the architecture specific functions for Wide Characters specified in Table 7-11, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-11 libc - Wide Characters Function Interfaces
__wcstod_internal(GLIBC_2.0) [LSB] | __wcstof_internal(GLIBC_2.0) [LSB] | __wcstol_internal(GLIBC_2.0) [LSB] | __wcstold_internal(GLIBC_2.0) [LSB]
__wcstoul_internal(GLIBC_2.0) [LSB] | btowc(GLIBC_2.0) [SUSv3] | fgetwc(GLIBC_2.2) [SUSv3] | fgetws(GLIBC_2.2) [SUSv3]
fputwc(GLIBC_2.2) [SUSv3] | fputws(GLIBC_2.2) [SUSv3] | fwide(GLIBC_2.2) [SUSv3] | fwprintf(GLIBC_2.2) [SUSv3]
fwscanf(GLIBC_2.2) [LSB] | getwc(GLIBC_2.2) [SUSv3] | getwchar(GLIBC_2.2) [SUSv3] | mblen(GLIBC_2.0) [SUSv3]
mbrlen(GLIBC_2.0) [SUSv3] | mbrtowc(GLIBC_2.0) [SUSv3] | mbsinit(GLIBC_2.0) [SUSv3] | mbsnrtowcs(GLIBC_2.0) [LSB]
mbsrtowcs(GLIBC_2.0) [SUSv3] | mbstowcs(GLIBC_2.0) [SUSv3] | mbtowc(GLIBC_2.0) [SUSv3] | putwc(GLIBC_2.2) [SUSv3]
putwchar(GLIBC_2.2) [SUSv3] | swprintf(GLIBC_2.2) [SUSv3] | swscanf(GLIBC_2.2) [LSB] | towctrans(GLIBC_2.0) [SUSv3]
towlower(GLIBC_2.0) [SUSv3] | towupper(GLIBC_2.0) [SUSv3] | ungetwc(GLIBC_2.2) [SUSv3] | vfwprintf(GLIBC_2.2) [SUSv3]
vfwscanf(GLIBC_2.2) [LSB] | vswprintf(GLIBC_2.2) [SUSv3] | vswscanf(GLIBC_2.2) [LSB] | vwprintf(GLIBC_2.2) [SUSv3]
vwscanf(GLIBC_2.2) [LSB] | wcpcpy(GLIBC_2.0) [LSB] | wcpncpy(GLIBC_2.0) [LSB] | wcrtomb(GLIBC_2.0) [SUSv3]
wcscasecmp(GLIBC_2.1) [LSB] | wcscat(GLIBC_2.0) [SUSv3] | wcschr(GLIBC_2.0) [SUSv3] | wcscmp(GLIBC_2.0) [SUSv3]
wcscoll(GLIBC_2.0) [SUSv3] | wcscpy(GLIBC_2.0) [SUSv3] | wcscspn(GLIBC_2.0) [SUSv3] | wcsdup(GLIBC_2.0) [LSB]
wcsftime(GLIBC_2.2) [SUSv3] | wcslen(GLIBC_2.0) [SUSv3] | wcsncasecmp(GLIBC_2.1) [LSB] | wcsncat(GLIBC_2.0) [SUSv3]
wcsncmp(GLIBC_2.0) [SUSv3] | wcsncpy(GLIBC_2.0) [SUSv3] | wcsnlen(GLIBC_2.1) [LSB] | wcsnrtombs(GLIBC_2.0) [LSB]
wcspbrk(GLIBC_2.0) [SUSv3] | wcsrchr(GLIBC_2.0) [SUSv3] | wcsrtombs(GLIBC_2.0) [SUSv3] | wcsspn(GLIBC_2.0) [SUSv3]
wcsstr(GLIBC_2.0) [SUSv3] | wcstod(GLIBC_2.0) [SUSv3] | wcstof(GLIBC_2.0) [SUSv3] | wcstoimax(GLIBC_2.1) [SUSv3]
wcstok(GLIBC_2.0) [SUSv3] | wcstol(GLIBC_2.0) [SUSv3] | wcstold(GLIBC_2.0) [SUSv3] | wcstoll(GLIBC_2.1) [SUSv3]
wcstombs(GLIBC_2.0) [SUSv3] | wcstoq(GLIBC_2.0) [LSB] | wcstoul(GLIBC_2.0) [SUSv3] | wcstoull(GLIBC_2.1) [SUSv3]
wcstoumax(GLIBC_2.1) [SUSv3] | wcstouq(GLIBC_2.0) [LSB] | wcswcs(GLIBC_2.1) [SUSv3] | wcswidth(GLIBC_2.0) [SUSv3]
wcsxfrm(GLIBC_2.0) [SUSv3] | wctob(GLIBC_2.0) [SUSv3] | wctomb(GLIBC_2.0) [SUSv3] | wctrans(GLIBC_2.0) [SUSv3]
wctype(GLIBC_2.0) [SUSv3] | wcwidth(GLIBC_2.0) [SUSv3] | wmemchr(GLIBC_2.0) [SUSv3] | wmemcmp(GLIBC_2.0) [SUSv3]
wmemcpy(GLIBC_2.0) [SUSv3] | wmemmove(GLIBC_2.0) [SUSv3] | wmemset(GLIBC_2.0) [SUSv3] | wprintf(GLIBC_2.2) [SUSv3]
wscanf(GLIBC_2.2) [LSB] | | |

7.2.8 String Functions
7.2.8.1 Interfaces for String Functions
An LSB conforming implementation shall provide the architecture specific functions for String Functions specified in Table 7-12, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-12 libc - String Functions Function Interfaces
__mempcpy(GLIBC_2.0) [LSB] | __rawmemchr(GLIBC_2.1) [LSB] | __stpcpy(GLIBC_2.0) [LSB] | __strdup(GLIBC_2.0) [LSB]
__strtod_internal(GLIBC_2.0) [LSB] | __strtof_internal(GLIBC_2.0) [LSB] | __strtok_r(GLIBC_2.0) [LSB] | __strtol_internal(GLIBC_2.0) [LSB]
__strtold_internal(GLIBC_2.0) [LSB] | __strtoll_internal(GLIBC_2.0) [LSB] | __strtoul_internal(GLIBC_2.0) [LSB] | __strtoull_internal(GLIBC_2.0) [LSB]
bcmp(GLIBC_2.0) [SUSv3] | bcopy(GLIBC_2.0) [SUSv3] | bzero(GLIBC_2.0) [SUSv3] | ffs(GLIBC_2.0) [SUSv3]
index(GLIBC_2.0) [SUSv3] | memccpy(GLIBC_2.0) [SUSv3] | memchr(GLIBC_2.0) [SUSv3] | memcmp(GLIBC_2.0) [SUSv3]
memcpy(GLIBC_2.0) [SUSv3] | memmove(GLIBC_2.0) [SUSv3] | memrchr(GLIBC_2.2) [LSB] | memset(GLIBC_2.0) [SUSv3]
rindex(GLIBC_2.0) [SUSv3] | stpcpy(GLIBC_2.0) [LSB] | stpncpy(GLIBC_2.0) [LSB] | strcasecmp(GLIBC_2.0) [SUSv3]
strcasestr(GLIBC_2.1) [LSB] | strcat(GLIBC_2.0) [SUSv3] | strchr(GLIBC_2.0) [SUSv3] | strcmp(GLIBC_2.0) [SUSv3]
strcoll(GLIBC_2.0) [SUSv3] | strcpy(GLIBC_2.0) [SUSv3] | strcspn(GLIBC_2.0) [SUSv3] | strdup(GLIBC_2.0) [SUSv3]
strerror(GLIBC_2.0) [SUSv3] | strerror_r(GLIBC_2.0) [LSB] | strfmon(GLIBC_2.0) [SUSv3] | strftime(GLIBC_2.0) [SUSv3]
strlen(GLIBC_2.0) [SUSv3] | strncasecmp(GLIBC_2.0) [SUSv3] | strncat(GLIBC_2.0) [SUSv3] | strncmp(GLIBC_2.0) [SUSv3]
strncpy(GLIBC_2.0) [SUSv3] | strndup(GLIBC_2.0) [LSB] | strnlen(GLIBC_2.0) [LSB] | strpbrk(GLIBC_2.0) [SUSv3]
strptime(GLIBC_2.0) [LSB] | strrchr(GLIBC_2.0) [SUSv3] | strsep(GLIBC_2.0) [LSB] | strsignal(GLIBC_2.0) [LSB]
strspn(GLIBC_2.0) [SUSv3] | strstr(GLIBC_2.0) [SUSv3] | strtof(GLIBC_2.0) [SUSv3] | strtoimax(GLIBC_2.1) [SUSv3]
strtok(GLIBC_2.0) [SUSv3] | strtok_r(GLIBC_2.0) [SUSv3] | strtold(GLIBC_2.0) [SUSv3] | strtoll(GLIBC_2.0) [SUSv3]
strtoq(GLIBC_2.0) [LSB] | strtoull(GLIBC_2.0) [SUSv3] | strtoumax(GLIBC_2.1) [SUSv3] | strtouq(GLIBC_2.0) [LSB]
strxfrm(GLIBC_2.0) [SUSv3] | swab(GLIBC_2.0) [SUSv3] | |

7.2.9 IPC Functions
7.2.9.1 Interfaces for IPC Functions
An LSB conforming implementation shall provide the architecture specific functions for IPC Functions specified in Table 7-13, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-13 libc - IPC Functions Function Interfaces
ftok(GLIBC_2.0) [SUSv3] | msgctl(GLIBC_2.2) [SUSv3] | msgget(GLIBC_2.0) [SUSv3] | msgrcv(GLIBC_2.0) [SUSv3]
msgsnd(GLIBC_2.0) [SUSv3] | semctl(GLIBC_2.2) [SUSv3] | semget(GLIBC_2.0) [SUSv3] | semop(GLIBC_2.0) [SUSv3]
shmat(GLIBC_2.0) [SUSv3] | shmctl(GLIBC_2.2) [SUSv3] | shmdt(GLIBC_2.0) [SUSv3] | shmget(GLIBC_2.0) [SUSv3]

7.2.10 Regular Expressions
7.2.10.1 Interfaces for Regular Expressions
An LSB conforming implementation shall provide the architecture specific functions for Regular Expressions specified in Table 7-14, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-14 libc - Regular Expressions Function Interfaces
regcomp(GLIBC_2.0) [SUSv3] | regerror(GLIBC_2.0) [SUSv3] | regexec(GLIBC_2.3.4) [LSB] | regfree(GLIBC_2.0) [SUSv3]

7.2.11 Character Type Functions
7.2.11.1 Interfaces for Character Type Functions
An LSB conforming implementation shall provide the architecture specific functions for Character Type Functions specified in Table 7-15, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-15 libc - Character Type Functions Function Interfaces
__ctype_get_mb_cur_max(GLIBC_2.0) [LSB] | _tolower(GLIBC_2.0) [SUSv3] | _toupper(GLIBC_2.0) [SUSv3] | isalnum(GLIBC_2.0) [SUSv3]
isalpha(GLIBC_2.0) [SUSv3] | isascii(GLIBC_2.0) [SUSv3] | iscntrl(GLIBC_2.0) [SUSv3] | isdigit(GLIBC_2.0) [SUSv3]
isgraph(GLIBC_2.0) [SUSv3] | islower(GLIBC_2.0) [SUSv3] | isprint(GLIBC_2.0) [SUSv3] | ispunct(GLIBC_2.0) [SUSv3]
isspace(GLIBC_2.0) [SUSv3] | isupper(GLIBC_2.0) [SUSv3] | iswalnum(GLIBC_2.0) [SUSv3] | iswalpha(GLIBC_2.0) [SUSv3]
iswblank(GLIBC_2.1) [SUSv3] | iswcntrl(GLIBC_2.0) [SUSv3] | iswctype(GLIBC_2.0) [SUSv3] | iswdigit(GLIBC_2.0) [SUSv3]
iswgraph(GLIBC_2.0) [SUSv3] | iswlower(GLIBC_2.0) [SUSv3] | iswprint(GLIBC_2.0) [SUSv3] | iswpunct(GLIBC_2.0) [SUSv3]
iswspace(GLIBC_2.0) [SUSv3] | iswupper(GLIBC_2.0) [SUSv3] | iswxdigit(GLIBC_2.0) [SUSv3] | isxdigit(GLIBC_2.0) [SUSv3]
toascii(GLIBC_2.0) [SUSv3] | tolower(GLIBC_2.0) [SUSv3] | toupper(GLIBC_2.0) [SUSv3] |

7.2.12 Time Manipulation
7.2.12.1 Interfaces for Time Manipulation
An LSB conforming implementation shall provide the architecture specific functions for Time Manipulation specified in Table 7-16, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-16 libc - Time Manipulation Function Interfaces
adjtime(GLIBC_2.0) [LSB] | asctime(GLIBC_2.0) [SUSv3] | asctime_r(GLIBC_2.0) [SUSv3] | ctime(GLIBC_2.0) [SUSv3]
ctime_r(GLIBC_2.0) [SUSv3] | difftime(GLIBC_2.0) [SUSv3] | gmtime(GLIBC_2.0) [SUSv3] | gmtime_r(GLIBC_2.0) [SUSv3]
localtime(GLIBC_2.0) [SUSv3] | localtime_r(GLIBC_2.0) [SUSv3] | mktime(GLIBC_2.0) [SUSv3] | tzset(GLIBC_2.0) [SUSv3]
ualarm(GLIBC_2.0) [SUSv3] | | |

An LSB conforming implementation shall provide the architecture specific data interfaces for Time Manipulation specified in Table 7-17, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-17 libc - Time Manipulation Data Interfaces
__daylight(GLIBC_2.0) [LSB] | __timezone(GLIBC_2.0) [LSB] | __tzname(GLIBC_2.0) [LSB] | daylight(GLIBC_2.0) [SUSv3]
timezone(GLIBC_2.0) [SUSv3] | tzname(GLIBC_2.0) [SUSv3] | |

7.2.13 Terminal Interface Functions
7.2.13.1 Interfaces for Terminal Interface Functions
An LSB conforming implementation shall provide the architecture specific functions for Terminal Interface Functions specified in Table 7-18, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-18 libc - Terminal Interface Functions Function Interfaces
cfgetispeed(GLIBC_2.0) [SUSv3] | cfgetospeed(GLIBC_2.0) [SUSv3] | cfmakeraw(GLIBC_2.0) [LSB] | cfsetispeed(GLIBC_2.0) [SUSv3]
cfsetospeed(GLIBC_2.0) [SUSv3] | cfsetspeed(GLIBC_2.0) [LSB] | tcdrain(GLIBC_2.0) [SUSv3] | tcflow(GLIBC_2.0) [SUSv3]
tcflush(GLIBC_2.0) [SUSv3] | tcgetattr(GLIBC_2.0) [SUSv3] | tcgetpgrp(GLIBC_2.0) [SUSv3] | tcgetsid(GLIBC_2.1) [SUSv3]
tcsendbreak(GLIBC_2.0) [SUSv3] | tcsetattr(GLIBC_2.0) [SUSv3] | tcsetpgrp(GLIBC_2.0) [SUSv3] |

7.2.14 System Database Interface
7.2.14.1 Interfaces for System Database Interface
An LSB conforming implementation shall provide the architecture specific functions for System Database Interface specified in Table 7-19, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-19 libc - System Database Interface Function Interfaces
endgrent(GLIBC_2.0) [SUSv3] | endprotoent(GLIBC_2.0) [SUSv3] | endpwent(GLIBC_2.0) [SUSv3] | endservent(GLIBC_2.0) [SUSv3]
endutent(GLIBC_2.0) [SUSv2] | endutxent(GLIBC_2.1) [SUSv3] | getgrent(GLIBC_2.0) [SUSv3] | getgrgid(GLIBC_2.0) [SUSv3]
getgrgid_r(GLIBC_2.1.2) [SUSv3] | getgrnam(GLIBC_2.0) [SUSv3] | getgrnam_r(GLIBC_2.1.2) [SUSv3] | getgrouplist(GLIBC_2.2.4) [LSB]
gethostbyaddr(GLIBC_2.0) [SUSv3] | gethostbyname(GLIBC_2.0) [SUSv3] | getprotobyname(GLIBC_2.0) [SUSv3] | getprotobynumber(GLIBC_2.0) [SUSv3]
getprotoent(GLIBC_2.0) [SUSv3] | getpwent(GLIBC_2.0) [SUSv3] | getpwnam(GLIBC_2.0) [SUSv3] | getpwnam_r(GLIBC_2.1.2) [SUSv3]
getpwuid(GLIBC_2.0) [SUSv3] | getpwuid_r(GLIBC_2.1.2) [SUSv3] | getservbyname(GLIBC_2.0) [SUSv3] | getservbyport(GLIBC_2.0) [SUSv3]
getservent(GLIBC_2.0) [SUSv3] | getutent(GLIBC_2.0) [LSB] | getutent_r(GLIBC_2.0) [LSB] | getutxent(GLIBC_2.1) [SUSv3]
getutxid(GLIBC_2.1) [SUSv3] | getutxline(GLIBC_2.1) [SUSv3] | pututxline(GLIBC_2.1) [SUSv3] | setgrent(GLIBC_2.0) [SUSv3]
setgroups(GLIBC_2.0) [LSB] | setprotoent(GLIBC_2.0) [SUSv3] | setpwent(GLIBC_2.0) [SUSv3] | setservent(GLIBC_2.0) [SUSv3]
setutent(GLIBC_2.0) [LSB] | setutxent(GLIBC_2.1) [SUSv3] | utmpname(GLIBC_2.0) [LSB] |

7.2.15 Language Support
7.2.15.1 Interfaces for Language Support
An LSB conforming implementation shall provide the architecture specific functions for Language Support specified in Table 7-20, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-20 libc - Language Support Function Interfaces
__libc_start_main(GLIBC_2.0) [LSB] | | |

7.2.16 Large File Support
7.2.16.1 Interfaces for Large File Support
An LSB conforming implementation shall provide the architecture specific functions for Large File Support specified in Table 7-21, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-21 libc - Large File Support Function Interfaces
__fxstat64(GLIBC_2.2) [LSB] | __lxstat64(GLIBC_2.2) [LSB] | __xstat64(GLIBC_2.2) [LSB] | creat64(GLIBC_2.1) [LFS]
fgetpos64(GLIBC_2.2) [LFS] | fopen64(GLIBC_2.1) [LFS] | freopen64(GLIBC_2.1) [LFS] | fseeko64(GLIBC_2.1) [LFS]
fsetpos64(GLIBC_2.2) [LFS] | fstatvfs64(GLIBC_2.1) [LFS] | ftello64(GLIBC_2.1) [LFS] | ftruncate64(GLIBC_2.1) [LFS]
ftw64(GLIBC_2.1) [LFS] | getrlimit64(GLIBC_2.2) [LFS] | lockf64(GLIBC_2.1) [LFS] | mkstemp64(GLIBC_2.2) [LFS]
mmap64(GLIBC_2.1) [LFS] | nftw64(GLIBC_2.3.3) [LFS] | readdir64(GLIBC_2.2) [LFS] | statvfs64(GLIBC_2.1) [LFS]
tmpfile64(GLIBC_2.1) [LFS] | truncate64(GLIBC_2.1) [LFS] | |

7.2.17 Standard Library
7.2.17.1 Interfaces for Standard Library
An LSB conforming implementation shall provide the architecture specific functions for Standard Library specified in Table 7-22, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-22 libc - Standard Library Function Interfaces
_Exit(GLIBC_2.1.1) [SUSv3] | __assert_fail(GLIBC_2.0) [LSB] | __cxa_atexit(GLIBC_2.1.3) [LSB] | __errno_location(GLIBC_2.0) [LSB]
__fpending(GLIBC_2.2) [LSB] | __getpagesize(GLIBC_2.0) [LSB] | __isinf(GLIBC_2.0) [LSB] | __isinff(GLIBC_2.0) [LSB]
__isinfl(GLIBC_2.0) [LSB] | __isnan(GLIBC_2.0) [LSB] | __isnanf(GLIBC_2.0) [LSB] | __isnanl(GLIBC_2.0) [LSB]
__sysconf(GLIBC_2.2) [LSB] | _exit(GLIBC_2.0) [SUSv3] | _longjmp(GLIBC_2.0) [SUSv3] | _setjmp(GLIBC_2.0) [SUSv3]
a64l(GLIBC_2.0) [SUSv3] | abort(GLIBC_2.0) [SUSv3] | abs(GLIBC_2.0) [SUSv3] | atof(GLIBC_2.0) [SUSv3]
atoi(GLIBC_2.0) [SUSv3] | atol(GLIBC_2.0) [SUSv3] | atoll(GLIBC_2.0) [SUSv3] | basename(GLIBC_2.0) [SUSv3]
bsearch(GLIBC_2.0) [SUSv3] | calloc(GLIBC_2.0) [SUSv3] | closelog(GLIBC_2.0) [SUSv3] | confstr(GLIBC_2.0) [SUSv3]
cuserid(GLIBC_2.0) [SUSv2] | daemon(GLIBC_2.0) [LSB] | dirname(GLIBC_2.0) [SUSv3] | div(GLIBC_2.0) [SUSv3]
drand48(GLIBC_2.0) [SUSv3] | ecvt(GLIBC_2.0) [SUSv3] | erand48(GLIBC_2.0) [SUSv3] | err(GLIBC_2.0) [LSB]
error(GLIBC_2.0) [LSB] | errx(GLIBC_2.0) [LSB] | fcvt(GLIBC_2.0) [SUSv3] | fmtmsg(GLIBC_2.1) [SUSv3]
fnmatch(GLIBC_2.2.3) [SUSv3] | fpathconf(GLIBC_2.0) [SUSv3] | free(GLIBC_2.0) [SUSv3] | freeaddrinfo(GLIBC_2.0) [SUSv3]
ftrylockfile(GLIBC_2.0) [SUSv3] | ftw(GLIBC_2.0) [SUSv3] | funlockfile(GLIBC_2.0) [SUSv3] | gai_strerror(GLIBC_2.1) [SUSv3]
gcvt(GLIBC_2.0) [SUSv3] | getaddrinfo(GLIBC_2.0) [SUSv3] | getcwd(GLIBC_2.0) [SUSv3] | getdate(GLIBC_2.1) [SUSv3]
getenv(GLIBC_2.0) [SUSv3] | getlogin(GLIBC_2.0) [SUSv3] | getlogin_r(GLIBC_2.0) [SUSv3] | getnameinfo(GLIBC_2.1) [SUSv3]
getopt(GLIBC_2.0) [LSB] | getopt_long(GLIBC_2.0) [LSB] | getopt_long_only(GLIBC_2.0) [LSB] | getsubopt(GLIBC_2.0) [SUSv3]
gettimeofday(GLIBC_2.0) [SUSv3] | glob(GLIBC_2.0) [SUSv3] | glob64(GLIBC_2.2) [LSB] | globfree(GLIBC_2.0) [SUSv3]
globfree64(GLIBC_2.1) [LSB] | grantpt(GLIBC_2.1) [SUSv3] | hcreate(GLIBC_2.0) [SUSv3] | hdestroy(GLIBC_2.0) [SUSv3]
hsearch(GLIBC_2.0) [SUSv3] | htonl(GLIBC_2.0) [SUSv3] | htons(GLIBC_2.0) [SUSv3] | imaxabs(GLIBC_2.1.1) [SUSv3]
imaxdiv(GLIBC_2.1.1) [SUSv3] | inet_addr(GLIBC_2.0) [SUSv3] | inet_ntoa(GLIBC_2.0) [SUSv3] | inet_ntop(GLIBC_2.0) [SUSv3]
inet_pton(GLIBC_2.0) [SUSv3] | initstate(GLIBC_2.0) [SUSv3] | insque(GLIBC_2.0) [SUSv3] | isatty(GLIBC_2.0) [SUSv3]
isblank(GLIBC_2.0) [SUSv3] | jrand48(GLIBC_2.0) [SUSv3] | l64a(GLIBC_2.0) [SUSv3] | labs(GLIBC_2.0) [SUSv3]
lcong48(GLIBC_2.0) [SUSv3] | ldiv(GLIBC_2.0) [SUSv3] | lfind(GLIBC_2.0) [SUSv3] | llabs(GLIBC_2.0) [SUSv3]
lldiv(GLIBC_2.0) [SUSv3] | longjmp(GLIBC_2.0) [SUSv3] | lrand48(GLIBC_2.0) [SUSv3] | lsearch(GLIBC_2.0) [SUSv3]
makecontext(GLIBC_2.1) [SUSv3] | malloc(GLIBC_2.0) [SUSv3] | memmem(GLIBC_2.0) [LSB] | mkstemp(GLIBC_2.0) [SUSv3]
mktemp(GLIBC_2.0) [SUSv3] | mrand48(GLIBC_2.0) [SUSv3] | nftw(GLIBC_2.3.3) [SUSv3] | nrand48(GLIBC_2.0) [SUSv3]
ntohl(GLIBC_2.0) [SUSv3] | ntohs(GLIBC_2.0) [SUSv3] | openlog(GLIBC_2.0) [SUSv3] | perror(GLIBC_2.0) [SUSv3]
posix_memalign(GLIBC_2.2) [SUSv3] | posix_openpt(GLIBC_2.2.1) [SUSv3] | ptsname(GLIBC_2.1) [SUSv3] | putenv(GLIBC_2.0) [SUSv3]
qsort(GLIBC_2.0) [SUSv3] | rand(GLIBC_2.0) [SUSv3] | rand_r(GLIBC_2.0) [SUSv3] | random(GLIBC_2.0) [SUSv3]
realloc(GLIBC_2.0) [SUSv3] | realpath(GLIBC_2.3) [SUSv3] | remque(GLIBC_2.0) [SUSv3] | seed48(GLIBC_2.0) [SUSv3]
setenv(GLIBC_2.0) [SUSv3] | sethostname(GLIBC_2.0) [LSB] | setlogmask(GLIBC_2.0) [SUSv3] | setstate(GLIBC_2.0) [SUSv3]
srand(GLIBC_2.0) [SUSv3] | srand48(GLIBC_2.0) [SUSv3] | srandom(GLIBC_2.0) [SUSv3] | strtod(GLIBC_2.0) [SUSv3]
strtol(GLIBC_2.0) [SUSv3] | strtoul(GLIBC_2.0) [SUSv3] | swapcontext(GLIBC_2.1) [SUSv3] | syslog(GLIBC_2.0) [SUSv3]
system(GLIBC_2.0) [LSB] | tdelete(GLIBC_2.0) [SUSv3] | tfind(GLIBC_2.0) [SUSv3] | tmpfile(GLIBC_2.1) [SUSv3]
tmpnam(GLIBC_2.0) [SUSv3] | tsearch(GLIBC_2.0) [SUSv3] | ttyname(GLIBC_2.0) [SUSv3] | ttyname_r(GLIBC_2.0) [SUSv3]
twalk(GLIBC_2.0) [SUSv3] | unlockpt(GLIBC_2.1) [SUSv3] | unsetenv(GLIBC_2.0) [SUSv3] | usleep(GLIBC_2.0) [SUSv3]
verrx(GLIBC_2.0) [LSB] | vfscanf(GLIBC_2.0) [LSB] | vscanf(GLIBC_2.0) [LSB] | vsscanf(GLIBC_2.0) [LSB]
vsyslog(GLIBC_2.0) [LSB] | warn(GLIBC_2.0) [LSB] | warnx(GLIBC_2.0) [LSB] | wordexp(GLIBC_2.1) [SUSv3]
wordfree(GLIBC_2.1) [SUSv3] | | |

An LSB conforming implementation shall provide the architecture specific data interfaces for Standard Library specified in Table 7-23, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-23 libc - Standard Library Data Interfaces
__environ(GLIBC_2.0) [LSB] | _environ(GLIBC_2.0) [LSB] | _sys_errlist(GLIBC_2.3) [LSB] | environ(GLIBC_2.0) [SUSv3]
getdate_err(GLIBC_2.1) [SUSv3] | optarg(GLIBC_2.0) [SUSv3] | opterr(GLIBC_2.0) [SUSv3] | optind(GLIBC_2.0) [SUSv3]
optopt(GLIBC_2.0) [SUSv3] | | |

7.3 Data Definitions for libc
This section defines global identifiers and their values that are associated with interfaces contained in libc. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C format. The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
7.3.1 arpa/inet.h

extern uint32_t htonl(uint32_t);
extern uint16_t htons(uint16_t);
extern in_addr_t inet_addr(const char *);
extern char *inet_ntoa(struct in_addr);
extern const char *inet_ntop(int, const void *, char *, socklen_t);
extern int inet_pton(int, const char *, void *);
extern uint32_t ntohl(uint32_t);
extern uint16_t ntohs(uint16_t);
7.3.2 assert.h

extern void __assert_fail(const char *, const char *, unsigned int,
                          const char *);
7.3.3 ctype.h

extern int _tolower(int);
extern int _toupper(int);
extern int isalnum(int);
extern int isalpha(int);
extern int isascii(int);
extern int iscntrl(int);
extern int isdigit(int);
extern int isgraph(int);
extern int islower(int);
extern int isprint(int);
extern int ispunct(int);
extern int isspace(int);
extern int isupper(int);
extern int isxdigit(int);
extern int toascii(int);
extern int tolower(int);
extern int toupper(int);
extern int isblank(int);
extern const unsigned short **__ctype_b_loc(void);
extern const int32_t **__ctype_toupper_loc(void);
extern const int32_t **__ctype_tolower_loc(void);
7.3.4 dirent.h

extern void rewinddir(DIR *);
extern void seekdir(DIR *, long int);
extern long int telldir(DIR *);
extern int closedir(DIR *);
extern DIR *opendir(const char *);
extern struct dirent *readdir(DIR *);
extern struct dirent64 *readdir64(DIR *);
extern int readdir_r(DIR *, struct dirent *, struct dirent **);
7.3.5 err.h

extern void err(int, const char *, ...);
extern void errx(int, const char *, ...);
extern void warn(const char *, ...);
extern void warnx(const char *, ...);
extern void error(int, int, const char *, ...);
7.3.6 errno.h

#define EDEADLOCK       EDEADLK

extern int *__errno_location(void);
7.3.7 fcntl.h

#define F_GETLK64       12
#define F_SETLK64       13
#define F_SETLKW64      14

extern int lockf64(int, int, off64_t);
extern int fcntl(int, int, ...);
7.3.8 fmtmsg.h

extern int fmtmsg(long int, const char *, int, const char *, const char *,
                  const char *);
7.3.9 fnmatch.h

extern int fnmatch(const char *, const char *, int);
7.3.10 ftw.h

extern int ftw(const char *, __ftw_func_t, int);
extern int ftw64(const char *, __ftw64_func_t, int);
extern int nftw(const char *, __nftw_func_t, int, int);
extern int nftw64(const char *, __nftw64_func_t, int, int);
7.3.11 getopt.h

extern int getopt_long(int, char *const, const char *,
                       const struct option *, int *);
extern int getopt_long_only(int, char *const, const char *,
                            const struct option *, int *);
7.3.12 glob.h

extern int glob(const char *, int,
                int (*__errfunc) (const char *p1, int p2)
                , glob_t *);
extern int glob64(const char *, int,
                  int (*__errfunc) (const char *p1, int p2)
                  , glob64_t *);
extern void globfree(glob_t *);
extern void globfree64(glob64_t *);
7.3.13 grp.h

extern void endgrent(void);
extern struct group *getgrent(void);
extern struct group *getgrgid(gid_t);
extern struct group *getgrnam(char *);
extern int initgroups(const char *, gid_t);
extern void setgrent(void);
extern int setgroups(size_t, const gid_t *);
extern int getgrgid_r(gid_t, struct group *, char *, size_t,
                      struct group **);
extern int getgrnam_r(const char *, struct group *, char *, size_t,
                      struct group **);
extern int getgrouplist(const char *, gid_t, gid_t *, int *);
7.3.14 iconv.h

extern size_t iconv(iconv_t, char **, size_t *, char **, size_t *);
extern int iconv_close(iconv_t);
extern iconv_t iconv_open(char *, char *);
7.3.15 inttypes.h

typedef long long int intmax_t;
typedef unsigned int uintptr_t;
typedef unsigned long long int uintmax_t;
typedef unsigned long long int uint64_t;

extern intmax_t strtoimax(const char *, char **, int);
extern uintmax_t strtoumax(const char *, char **, int);
extern intmax_t wcstoimax(const wchar_t *, wchar_t * *, int);
extern uintmax_t wcstoumax(const wchar_t *, wchar_t * *, int);
extern intmax_t imaxabs(intmax_t);
extern imaxdiv_t imaxdiv(intmax_t, intmax_t);
7.3.16 langinfo.h

extern char *nl_langinfo(nl_item);
7.3.17 libgen.h

extern char *basename(const char *);
extern char *dirname(char *);
7.3.18 libintl.h

extern char *bindtextdomain(const char *, const char *);
extern char *dcgettext(const char *, const char *, int);
extern char *dgettext(const char *, const char *);
extern char *gettext(const char *);
extern char *textdomain(const char *);
extern char *bind_textdomain_codeset(const char *, const char *);
extern char *dcngettext(const char *, const char *, const char *,
                        unsigned long int, int);
extern char *dngettext(const char *, const char *, const char *,
                       unsigned long int);
extern char *ngettext(const char *, const char *, unsigned long int);
7.3.19 limits.h

#define LONG_MAX        0x7FFFFFFFL
#define ULONG_MAX       0xFFFFFFFFUL

#define CHAR_MAX        SCHAR_MAX
#define CHAR_MIN        SCHAR_MIN

#define PTHREAD_STACK_MIN       16384
7.3.20 locale.h

extern struct lconv *localeconv(void);
extern char *setlocale(int, const char *);
extern locale_t uselocale(locale_t);
extern void freelocale(locale_t);
extern locale_t duplocale(locale_t);
extern locale_t newlocale(int, const char *, locale_t);
7.3.21 monetary.h

extern ssize_t strfmon(char *, size_t, const char *, ...);
7.3.22 net/if.h

extern void if_freenameindex(struct if_nameindex *);
extern char *if_indextoname(unsigned int, char *);
extern struct if_nameindex *if_nameindex(void);
extern unsigned int if_nametoindex(const char *);
7.3.23 netdb.h

extern void endprotoent(void);
extern void endservent(void);
extern void freeaddrinfo(struct addrinfo *);
extern const char *gai_strerror(int);
extern int getaddrinfo(const char *, const char *, const struct addrinfo *,
                       struct addrinfo **);
extern struct hostent *gethostbyaddr(const void *, socklen_t, int);
extern struct hostent *gethostbyname(const char *);
extern struct protoent *getprotobyname(const char *);
extern struct protoent *getprotobynumber(int);
extern struct protoent *getprotoent(void);
extern struct servent *getservbyname(const char *, const char *);
extern struct servent *getservbyport(int, const char *);
extern struct servent *getservent(void);
extern void setprotoent(int);
extern void setservent(int);
extern int *__h_errno_location(void);
7.3.24 netinet/in.h

extern int bindresvport(int, struct sockaddr_in *);
7.3.25 netinet/ip.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.26 netinet/tcp.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.27 netinet/udp.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.28 nl_types.h

extern int catclose(nl_catd);
extern char *catgets(nl_catd, int, int, const char *);
extern nl_catd catopen(const char *, int);
7.3.29 poll.h

extern int poll(struct pollfd *, nfds_t, int);
7.3.30 pty.h

extern int openpty(int *, int *, char *, struct termios *,
                   struct winsize *);
extern int forkpty(int *, char *, struct termios *, struct winsize *);
7.3.31 pwd.h

extern void endpwent(void);
extern struct passwd *getpwent(void);
extern struct passwd *getpwnam(char *);
extern struct passwd *getpwuid(uid_t);
extern void setpwent(void);
extern int getpwnam_r(char *, struct passwd *, char *, size_t,
                      struct passwd **);
extern int getpwuid_r(uid_t, struct passwd *, char *, size_t,
                      struct passwd **);
7.3.32 regex.h

extern int regcomp(regex_t *, const char *, int);
extern size_t regerror(int, const regex_t *, char *, size_t);
extern int regexec(const regex_t *, const char *, size_t, regmatch_t, int);
extern void regfree(regex_t *);
7.3.33 rpc/auth.h

extern struct AUTH *authnone_create(void);
extern int key_decryptsession(char *, union des_block *);
extern bool_t xdr_opaque_auth(XDR *, struct opaque_auth *);
7.3.34 rpc/clnt.h

extern struct CLIENT *clnt_create(const char *, const u_long, const u_long,
                                  const char *);
extern void clnt_pcreateerror(const char *);
extern void clnt_perrno(enum clnt_stat);
extern void clnt_perror(struct CLIENT *, const char *);
extern char *clnt_spcreateerror(const char *);
extern char *clnt_sperrno(enum clnt_stat);
extern char *clnt_sperror(struct CLIENT *, const char *);
7.3.35 rpc/pmap_clnt.h

extern u_short pmap_getport(struct sockaddr_in *, const u_long,
                            const u_long, u_int);
extern bool_t pmap_set(const u_long, const u_long, int, u_short);
extern bool_t pmap_unset(u_long, u_long);
7.3.36 rpc/rpc_msg.h

extern bool_t xdr_callhdr(XDR *, struct rpc_msg *);
7.3.37 rpc/svc.h

extern void svc_getreqset(fd_set *);
extern bool_t svc_register(SVCXPRT *, rpcprog_t, rpcvers_t,
                           __dispatch_fn_t, rpcprot_t);
extern void svc_run(void);
extern bool_t svc_sendreply(SVCXPRT *, xdrproc_t, caddr_t);
extern void svcerr_auth(SVCXPRT *, enum auth_stat);
extern void svcerr_decode(SVCXPRT *);
extern void svcerr_noproc(SVCXPRT *);
extern void svcerr_noprog(SVCXPRT *);
extern void svcerr_progvers(SVCXPRT *, rpcvers_t, rpcvers_t);
extern void svcerr_systemerr(SVCXPRT *);
extern void svcerr_weakauth(SVCXPRT *);
extern SVCXPRT *svctcp_create(int, u_int, u_int);
extern SVCXPRT *svcudp_create(int);
7.3.38 rpc/types.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.39 rpc/xdr.h

extern bool_t xdr_array(XDR *, caddr_t *, u_int *, u_int, u_int,
                        xdrproc_t);
extern bool_t xdr_bool(XDR *, bool_t *);
extern bool_t xdr_bytes(XDR *, char **, u_int *, u_int);
extern bool_t xdr_char(XDR *, char *);
extern bool_t xdr_double(XDR *, double *);
extern bool_t xdr_enum(XDR *, enum_t *);
extern bool_t xdr_float(XDR *, float *);
extern void xdr_free(xdrproc_t, char *);
extern bool_t xdr_int(XDR *, int *);
extern bool_t xdr_long(XDR *, long int *);
extern bool_t xdr_opaque(XDR *, caddr_t, u_int);
extern bool_t xdr_pointer(XDR *, char **, u_int, xdrproc_t);
extern bool_t xdr_reference(XDR *, caddr_t *, u_int, xdrproc_t);
extern bool_t xdr_short(XDR *, short *);
extern bool_t xdr_string(XDR *, char **, u_int);
extern bool_t xdr_u_char(XDR *, u_char *);
extern bool_t xdr_u_int(XDR *, u_int *);
extern bool_t xdr_u_long(XDR *, u_long *);
extern bool_t xdr_u_short(XDR *, u_short *);
extern bool_t xdr_union(XDR *, enum_t *, char *,
                        const struct xdr_discrim *, xdrproc_t);
extern bool_t xdr_vector(XDR *, char *, u_int, u_int, xdrproc_t);
extern bool_t xdr_void(void);
extern bool_t xdr_wrapstring(XDR *, char **);
extern void xdrmem_create(XDR *, caddr_t, u_int, enum xdr_op);
extern void xdrrec_create(XDR *, u_int, u_int, caddr_t,
                          int (*__readit) (char *p1, char *p2, int p3)
                          , int (*__writeit) (char *p1, char *p2, int p3)
    );
extern typedef int bool_t xdrrec_eof(XDR *);
7.3.40 sched.h

extern int sched_get_priority_max(int);
extern int sched_get_priority_min(int);
extern int sched_getparam(pid_t, struct sched_param *);
extern int sched_getscheduler(pid_t);
extern int sched_rr_get_interval(pid_t, struct timespec *);
extern int sched_setparam(pid_t, const struct sched_param *);
extern int sched_setscheduler(pid_t, int, const struct sched_param *);
extern int sched_yield(void);
7.3.41 search.h

extern int hcreate(size_t);
extern ENTRY *hsearch(ENTRY, ACTION);
extern void insque(void *, void *);
extern void *lfind(const void *, const void *, size_t *, size_t,
                   __compar_fn_t);
extern void *lsearch(const void *, void *, size_t *, size_t,
                     __compar_fn_t);
extern void remque(void *);
extern void hdestroy(void);
extern void *tdelete(const void *, void **, __compar_fn_t);
extern void *tfind(const void *, void *const *, __compar_fn_t);
extern void *tsearch(const void *, void **, __compar_fn_t);
extern void twalk(const void *, __action_fn_t);
7.3.42 setjmp.h

typedef int __jmp_buf[6];

extern int __sigsetjmp(jmp_buf, int);
extern void longjmp(jmp_buf, int);
extern void siglongjmp(sigjmp_buf, int);
extern void _longjmp(jmp_buf, int);
extern int _setjmp(jmp_buf);
7.3.43 signal.h

#define SIGEV_PAD_SIZE  ((SIGEV_MAX_SIZE/sizeof(int))-3)

#define SI_PAD_SIZE     ((SI_MAX_SIZE/sizeof(int))-3)

struct sigaction {
    union {
        sighandler_t _sa_handler;
        void (*_sa_sigaction) (int, siginfo_t *, void *);
    } __sigaction_handler;
    sigset_t sa_mask;
    unsigned long int sa_flags;
    void (*sa_restorer) (void);
};

#define MINSIGSTKSZ     2048
#define SIGSTKSZ        8192

struct _fpreg {
    unsigned short significand[4];
    unsigned short exponent;
};
struct _fpxreg {
    unsigned short significand[4];
    unsigned short exponent;
    unsigned short padding[3];
};
struct _xmmreg {
    unsigned long int element[4];
};

struct _fpstate {
    unsigned long int cw;
    unsigned long int sw;
    unsigned long int tag;
    unsigned long int ipoff;
    unsigned long int cssel;
    unsigned long int dataoff;
    unsigned long int datasel;
    struct _fpreg _st[8];
    unsigned short status;
    unsigned short magic;
    unsigned long int _fxsr_env[6];
    unsigned long int mxcsr;
    unsigned long int reserved;
    struct _fpxreg _fxsr_st[8];
    struct _xmmreg _xmm[8];
    unsigned long int padding[56];
};

struct sigcontext {
    unsigned short gs;
    unsigned short __gsh;
    unsigned short fs;
    unsigned short __fsh;
    unsigned short es;
    unsigned short __esh;
    unsigned short ds;
    unsigned short __dsh;
    unsigned long int edi;
    unsigned long int esi;
    unsigned long int ebp;
    unsigned long int esp;
    unsigned long int ebx;
    unsigned long int edx;
    unsigned long int ecx;
    unsigned long int eax;
    unsigned long int trapno;
    unsigned long int err;
    unsigned long int eip;
    unsigned short cs;
    unsigned short __csh;
    unsigned long int eflags;
    unsigned long int esp_at_signal;
    unsigned short ss;
    unsigned short __ssh;
    struct _fpstate *fpstate;
    unsigned long int oldmask;
    unsigned long int cr2;
};
extern int __libc_current_sigrtmax(void);
extern int __libc_current_sigrtmin(void);
extern sighandler_t __sysv_signal(int, sighandler_t);
extern char *const _sys_siglist(void);
extern int killpg(pid_t, int);
extern void psignal(int, const char *);
extern int raise(int);
extern int sigaddset(sigset_t *, int);
extern int sigandset(sigset_t *, const sigset_t *, const sigset_t *);
extern int sigdelset(sigset_t *, int);
extern int sigemptyset(sigset_t *);
extern int sigfillset(sigset_t *);
extern int sighold(int);
extern int sigignore(int);
extern int siginterrupt(int, int);
extern int sigisemptyset(const sigset_t *);
extern int sigismember(const sigset_t *, int);
extern int sigorset(sigset_t *, const sigset_t *, const sigset_t *);
extern int sigpending(sigset_t *);
extern int sigrelse(int);
extern sighandler_t sigset(int, sighandler_t);
extern int pthread_kill(pthread_t, int);
extern int pthread_sigmask(int, sigset_t *, sigset_t *);
extern int sigaction(int, const struct sigaction *, struct sigaction *);
extern int sigwait(sigset_t *, int *);
extern int kill(pid_t, int);
extern int sigaltstack(const struct sigaltstack *, struct sigaltstack *);
extern sighandler_t signal(int, sighandler_t);
extern int sigpause(int);
extern int sigprocmask(int, const sigset_t *, sigset_t *);
extern int sigreturn(struct sigcontext *);
extern int sigsuspend(const sigset_t *);
extern int sigqueue(pid_t, int, const union sigval);
extern int sigwaitinfo(const sigset_t *, siginfo_t *);
extern int sigtimedwait(const sigset_t *, siginfo_t *,
                        const struct timespec *);
extern sighandler_t bsd_signal(int, sighandler_t);
7.3.44 stddef.h

typedef unsigned int size_t;
typedef int ptrdiff_t;
7.3.45 stdio.h

#define __IO_FILE_SIZE  148

extern char *const _sys_errlist(void);
extern void clearerr(FILE *);
extern int fclose(FILE *);
extern FILE *fdopen(int, const char *);
extern int fflush_unlocked(FILE *);
extern int fileno(FILE *);
extern FILE *fopen(const char *, const char *);
extern int fprintf(FILE *, const char *, ...);
extern int fputc(int, FILE *);
extern FILE *freopen(const char *, const char *, FILE *);
extern FILE *freopen64(const char *, const char *, FILE *);
extern int fscanf(FILE *, const char *, ...);
extern int fseek(FILE *, long int, int);
extern int fseeko(FILE *, off_t, int);
extern int fseeko64(FILE *, loff_t, int);
extern off_t ftello(FILE *);
extern loff_t ftello64(FILE *);
extern int getchar(void);
extern int getchar_unlocked(void);
extern int getw(FILE *);
extern int pclose(FILE *);
extern void perror(const char *);
extern FILE *popen(const char *, const char *);
extern int printf(const char *, ...);
extern int putc_unlocked(int, FILE *);
extern int putchar(int);
extern int putchar_unlocked(int);
extern int putw(int, FILE *);
extern int remove(const char *);
extern void rewind(FILE *);
extern int scanf(const char *, ...);
extern void setbuf(FILE *, char *);
extern int sprintf(char *, const char *, ...);
extern int sscanf(const char *, const char *, ...);
extern FILE *stderr(void);
extern FILE *stdin(void);
extern FILE *stdout(void);
extern char *tempnam(const char *, const char *);
extern FILE *tmpfile64(void);
extern FILE *tmpfile(void);
extern char *tmpnam(char *);
extern int vfprintf(FILE *, const char *, va_list);
extern int vprintf(const char *, va_list);
extern int feof(FILE *);
extern int ferror(FILE *);
extern int fflush(FILE *);
extern int fgetc(FILE *);
extern int fgetpos(FILE *, fpos_t *);
extern char *fgets(char *, int, FILE *);
extern int fputs(const char *, FILE *);
extern size_t fread(void *, size_t, size_t, FILE *);
extern int fsetpos(FILE *, const fpos_t *);
extern long int ftell(FILE *);
extern size_t fwrite(const void *, size_t, size_t, FILE *);
extern int getc(FILE *);
extern int putc(int, FILE *);
extern int puts(const char *);
extern int setvbuf(FILE *, char *, int, size_t);
extern int snprintf(char *, size_t, const char *, ...);
extern int ungetc(int, FILE *);
extern int vsnprintf(char *, size_t, const char *, va_list);
extern int vsprintf(char *, const char *, va_list);
extern void flockfile(FILE *);
extern int asprintf(char **, const char *, ...);
extern int fgetpos64(FILE *, fpos64_t *);
extern FILE *fopen64(const char *, const char *);
extern int fsetpos64(FILE *, const fpos64_t *);
extern int ftrylockfile(FILE *);
extern void funlockfile(FILE *);
extern int getc_unlocked(FILE *);
extern void setbuffer(FILE *, char *, size_t);
extern int vasprintf(char **, const char *, va_list);
extern int vdprintf(int, const char *, va_list);
extern int vfscanf(FILE *, const char *, va_list);
extern int vscanf(const char *, va_list);
extern int vsscanf(const char *, const char *, va_list);
extern size_t __fpending(FILE *);
7.3.46 stdlib.h

extern double __strtod_internal(const char *, char **, int);
extern float __strtof_internal(const char *, char **, int);
extern long int __strtol_internal(const char *, char **, int, int);
extern long double __strtold_internal(const char *, char **, int);
extern long long int __strtoll_internal(const char *, char **, int, int);
extern unsigned long int __strtoul_internal(const char *, char **, int,
                                            int);
extern unsigned long long int __strtoull_internal(const char *, char **,
                                                  int, int);
extern long int a64l(const char *);
extern void abort(void);
extern int abs(int);
extern double atof(const char *);
extern int atoi(char *);
extern long int atol(char *);
extern long long int atoll(const char *);
extern void *bsearch(const void *, const void *, size_t, size_t,
                     __compar_fn_t);
extern div_t div(int, int);
extern double drand48(void);
extern char *ecvt(double, int, int *, int *);
extern double erand48(unsigned short);
extern void exit(int);
extern char *fcvt(double, int, int *, int *);
extern char *gcvt(double, int, char *);
extern char *getenv(const char *);
extern int getsubopt(char **, char *const *, char **);
extern int grantpt(int);
extern long int jrand48(unsigned short);
extern char *l64a(long int);
extern long int labs(long int);
extern void lcong48(unsigned short);
extern ldiv_t ldiv(long int, long int);
extern long long int llabs(long long int);
extern lldiv_t lldiv(long long int, long long int);
extern long int lrand48(void);
extern int mblen(const char *, size_t);
extern size_t mbstowcs(wchar_t *, const char *, size_t);
extern int mbtowc(wchar_t *, const char *, size_t);
extern char *mktemp(char *);
extern long int mrand48(void);
extern long int nrand48(unsigned short);
extern char *ptsname(int);
extern int putenv(char *);
extern void qsort(void *, size_t, size_t, __compar_fn_t);
extern int rand(void);
extern int rand_r(unsigned int *);
extern unsigned short *seed48(unsigned short);
extern void srand48(long int);
extern int unlockpt(int);
extern size_t wcstombs(char *, const wchar_t *, size_t);
extern int wctomb(char *, wchar_t);
extern int system(const char *);
extern void *calloc(size_t, size_t);
extern void free(void *);
extern char *initstate(unsigned int, char *, size_t);
extern void *malloc(size_t);
extern long int random(void);
extern void *realloc(void *, size_t);
extern char *setstate(char *);
extern void srand(unsigned int);
extern void srandom(unsigned int);
extern double strtod(char *, char **);
extern float strtof(const char *, char **);
extern long int strtol(char *, char **, int);
extern long double strtold(const char *, char **);
extern long long int strtoll(const char *, char **, int);
extern long long int strtoq(const char *, char **, int);
extern unsigned long int strtoul(const char *, char **, int);
extern unsigned long long int strtoull(const char *, char **, int);
extern unsigned long long int strtouq(const char *, char **, int);
extern void _Exit(int);
extern size_t __ctype_get_mb_cur_max(void);
extern char **environ(void);
extern char *realpath(const char *, char *);
extern int setenv(const char *, const char *, int);
extern int unsetenv(const char *);
extern int getloadavg(double, int);
extern int mkstemp64(char *);
extern int posix_memalign(void **, size_t, size_t);
extern int posix_openpt(int);
7.3.47 string.h

extern void *__mempcpy(void *, const void *, size_t);
extern char *__stpcpy(char *, const char *);
extern char *__strtok_r(char *, const char *, char **);
extern void bcopy(void *, void *, size_t);
extern void *memchr(void *, int, size_t);
extern int memcmp(void *, void *, size_t);
extern void *memcpy(void *, void *, size_t);
extern void *memmem(const void *, size_t, const void *, size_t);
extern void *memmove(void *, const void *, size_t);
extern void *memset(void *, int, size_t);
extern char *strcat(char *, const char *);
extern char *strchr(char *, int);
extern int strcmp(char *, char *);
extern int strcoll(const char *, const char *);
extern char *strcpy(char *, char *);
extern size_t strcspn(const char *, const char *);
extern char *strerror(int);
extern size_t strlen(char *);
extern char *strncat(char *, char *, size_t);
extern int strncmp(char *, char *, size_t);
extern char *strncpy(char *, char *, size_t);
extern char *strpbrk(const char *, const char *);
extern char *strrchr(char *, int);
extern char *strsignal(int);
extern size_t strspn(const char *, const char *);
extern char *strstr(char *, char *);
extern char *strtok(char *, const char *);
extern size_t strxfrm(char *, const char *, size_t);
extern int bcmp(void *, void *, size_t);
extern void bzero(void *, size_t);
extern int ffs(int);
extern char *index(char *, int);
extern void *memccpy(void *, const void *, int, size_t);
extern char *rindex(char *, int);
extern int strcasecmp(char *, char *);
extern char *strdup(char *);
extern int strncasecmp(char *, char *, size_t);
extern char *strndup(const char *, size_t);
extern size_t strnlen(const char *, size_t);
extern char *strsep(char **, const char *);
extern char *strerror_r(int, char *, size_t);
extern char *strtok_r(char *, const char *, char **);
extern char *strcasestr(const char *, const char *);
extern char *stpcpy(char *, const char *);
extern char *stpncpy(char *, const char *, size_t);
extern void *memrchr(const void *, int, size_t);
7.3.48 sys/file.h

extern int flock(int, int);
7.3.49 sys/ioctl.h

#define TIOCGWINSZ      0x5413
#define FIONREAD        0x541B
#define TIOCNOTTY       0x5422

extern int ioctl(int, unsigned long int, ...);
7.3.50 sys/ipc.h

struct ipc_perm {
    key_t __key;
    uid_t uid;
    gid_t gid;
    uid_t cuid;
    gid_t cgid;
    unsigned short mode;
    unsigned short __pad1;
    unsigned short __seq;
    unsigned short __pad2;
    unsigned long int __unused1;
    unsigned long int __unused2;
};

extern key_t ftok(char *, int);
7.3.51 sys/mman.h

#define MCL_CURRENT     1
#define MCL_FUTURE      2

extern int msync(void *, size_t, int);
extern int mlock(const void *, size_t);
extern int mlockall(int);
extern void *mmap(void *, size_t, int, int, int, off_t);
extern int mprotect(void *, size_t, int);
extern int munlock(const void *, size_t);
extern int munlockall(void);
extern int munmap(void *, size_t);
extern void *mmap64(void *, size_t, int, int, int, off64_t);
extern int shm_open(const char *, int, mode_t);
extern int shm_unlink(const char *);
7.3.52 sys/msg.h

typedef unsigned long int msgqnum_t;
typedef unsigned long int msglen_t;

struct msqid_ds {
    struct ipc_perm msg_perm;
    time_t msg_stime;
    unsigned long int __unused1;
    time_t msg_rtime;
    unsigned long int __unused2;
    time_t msg_ctime;
    unsigned long int __unused3;
    unsigned long int __msg_cbytes;
    msgqnum_t msg_qnum;
    msglen_t msg_qbytes;
    pid_t msg_lspid;
    pid_t msg_lrpid;
    unsigned long int __unused4;
    unsigned long int __unused5;
};
extern int msgctl(int, int, struct msqid_ds *);
extern int msgget(key_t, int);
extern int msgrcv(int, void *, size_t, long int, int);
extern int msgsnd(int, const void *, size_t, int);
7.3.53 sys/param.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.54 sys/poll.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.55 sys/resource.h

extern int getpriority(__priority_which_t, id_t);
extern int getrlimit64(id_t, struct rlimit64 *);
extern int setpriority(__priority_which_t, id_t, int);
extern int setrlimit(__rlimit_resource_t, const struct rlimit *);
extern int setrlimit64(__rlimit_resource_t, const struct rlimit64 *);
extern int getrlimit(__rlimit_resource_t, struct rlimit *);
extern int getrusage(int, struct rusage *);
7.3.56 sys/sem.h

struct semid_ds {
    struct ipc_perm sem_perm;
    time_t sem_otime;
    unsigned long int __unused1;
    time_t sem_ctime;
    unsigned long int __unused2;
    unsigned long int sem_nsems;
    unsigned long int __unused3;
    unsigned long int __unused4;
};
extern int semctl(int, int, int, ...);
extern int semget(key_t, int, int);
extern int semop(int, struct sembuf *, size_t);
7.3.57 sys/shm.h

#define SHMLBA  (__getpagesize())

typedef unsigned long int shmatt_t;

struct shmid_ds {
    struct ipc_perm shm_perm;
    int shm_segsz;
    time_t shm_atime;
    unsigned long int __unused1;
    time_t shm_dtime;
    unsigned long int __unused2;
    time_t shm_ctime;
    unsigned long int __unused3;
    pid_t shm_cpid;
    pid_t shm_lpid;
    shmatt_t shm_nattch;
    unsigned long int __unused4;
    unsigned long int __unused5;
};
extern int __getpagesize(void);
extern void *shmat(int, const void *, int);
extern int shmctl(int, int, struct shmid_ds *);
extern int shmdt(const void *);
extern int shmget(key_t, size_t, int);
7.3.58 sys/socket.h

typedef uint32_t __ss_aligntype;

#define SO_RCVLOWAT     18
#define SO_SNDLOWAT     19
#define SO_RCVTIMEO     20
#define SO_SNDTIMEO     21

extern int bind(int, const struct sockaddr *, socklen_t);
extern int getnameinfo(const struct sockaddr *, socklen_t, char *,
                       socklen_t, char *, socklen_t, unsigned int);
extern int getsockname(int, struct sockaddr *, socklen_t *);
extern int listen(int, int);
extern int setsockopt(int, int, int, const void *, socklen_t);
extern int accept(int, struct sockaddr *, socklen_t *);
extern int connect(int, const struct sockaddr *, socklen_t);
extern ssize_t recv(int, void *, size_t, int);
extern ssize_t recvfrom(int, void *, size_t, int, struct sockaddr *,
                        socklen_t *);
extern ssize_t recvmsg(int, struct msghdr *, int);
extern ssize_t send(int, const void *, size_t, int);
extern ssize_t sendmsg(int, const struct msghdr *, int);
extern ssize_t sendto(int, const void *, size_t, int,
                      const struct sockaddr *, socklen_t);
extern int getpeername(int, struct sockaddr *, socklen_t *);
extern int getsockopt(int, int, int, void *, socklen_t *);
extern int shutdown(int, int);
extern int socket(int, int, int);
extern int socketpair(int, int, int, int);
extern int sockatmark(int);
7.3.59 sys/stat.h

#define _STAT_VER       3

struct stat {
    dev_t st_dev;
    unsigned short __pad1;
    unsigned long int st_ino;
    mode_t st_mode;
    nlink_t st_nlink;
    pid_t st_uid;
    gid_t st_gid;
    dev_t st_rdev;
    unsigned short __pad2;
    off_t st_size;
    blksize_t st_blksize;
    blkcnt_t st_blocks;
    struct timespec st_atim;
    struct timespec st_mtim;
    struct timespec st_ctim;
    unsigned long int __unused4;
    unsigned long int __unused5;
};
struct stat64 {
    dev_t st_dev;
    unsigned int __pad1;
    ino_t __st_ino;
    mode_t st_mode;
    nlink_t st_nlink;
    uid_t st_uid;
    gid_t st_gid;
    dev_t st_rdev;
    unsigned int __pad2;
    off64_t st_size;
    blksize_t st_blksize;
    blkcnt64_t st_blocks;
    struct timespec st_atim;
    struct timespec st_mtim;
    struct timespec st_ctim;
    ino64_t st_ino;
};

extern int __fxstat(int, int, struct stat *);
extern int __fxstat64(int, int, struct stat64 *);
extern int __lxstat(int, char *, struct stat *);
extern int __lxstat64(int, const char *, struct stat64 *);
extern int __xmknod(int, const char *, mode_t, dev_t *);
extern int __xstat(int, const char *, struct stat *);
extern int __xstat64(int, const char *, struct stat64 *);
extern int mkfifo(const char *, mode_t);
extern int chmod(const char *, mode_t);
extern int fchmod(int, mode_t);
extern mode_t umask(mode_t);
7.3.60 sys/statvfs.h

struct statvfs {
    unsigned long int f_bsize;
    unsigned long int f_frsize;
    fsblkcnt_t f_blocks;
    fsblkcnt_t f_bfree;
    fsblkcnt_t f_bavail;
    fsfilcnt_t f_files;
    fsfilcnt_t f_ffree;
    fsfilcnt_t f_favail;
    unsigned long int f_fsid;
    int __f_unused;
    unsigned long int f_flag;
    unsigned long int f_namemax;
    int __f_spare[6];
};
struct statvfs64 {
    unsigned long int f_bsize;
    unsigned long int f_frsize;
    fsblkcnt64_t f_blocks;
    fsblkcnt64_t f_bfree;
    fsblkcnt64_t f_bavail;
    fsfilcnt64_t f_files;
    fsfilcnt64_t f_ffree;
    fsfilcnt64_t f_favail;
    unsigned long int f_fsid;
    int __f_unused;
    unsigned long int f_flag;
    unsigned long int f_namemax;
    int __f_spare[6];
};
extern int fstatvfs(int, struct statvfs *);
extern int fstatvfs64(int, struct statvfs64 *);
extern int statvfs(const char *, struct statvfs *);
extern int statvfs64(const char *, struct statvfs64 *);
7.3.61 sys/time.h

extern int getitimer(__itimer_which_t, struct itimerval *);
extern int setitimer(__itimer_which_t, const struct itimerval *,
                     struct itimerval *);
extern int adjtime(const struct timeval *, struct timeval *);
extern int gettimeofday(struct timeval *, struct timezone *);
extern int utimes(const char *, const struct timeval *);
7.3.62 sys/timeb.h

extern int ftime(struct timeb *);
7.3.63 sys/times.h

extern clock_t times(struct tms *);
7.3.64 sys/types.h

typedef long long int int64_t;

typedef int32_t ssize_t;

#define __FDSET_LONGS   32
7.3.65 sys/uio.h

extern ssize_t readv(int, const struct iovec *, int);
extern ssize_t writev(int, const struct iovec *, int);
7.3.66 sys/un.h

/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */
7.3.67 sys/utsname.h

extern int uname(struct utsname *);
7.3.68 sys/wait.h

extern pid_t wait(int *);
extern pid_t waitpid(pid_t, int *, int);
extern pid_t wait4(pid_t, int *, int, struct rusage *);
7.3.69 syslog.h

extern void closelog(void);
extern void openlog(const char *, int, int);
extern int setlogmask(int);
extern void syslog(int, const char *, ...);
extern void vsyslog(int, const char *, va_list);
7.3.70 termios.h

#define OLCUC   0000002
#define ONLCR   0000004
#define XCASE   0000004
#define NLDLY   0000400
#define CR1     0001000
#define IUCLC   0001000
#define CR2     0002000
#define CR3     0003000
#define CRDLY   0003000
#define TAB1    0004000
#define TAB2    0010000
#define TAB3    0014000
#define TABDLY  0014000
#define BS1     0020000
#define BSDLY   0020000
#define VT1     0040000
#define VTDLY   0040000
#define FF1     0100000
#define FFDLY   0100000

#define VSUSP   10
#define VEOL    11
#define VREPRINT        12
#define VDISCARD        13
#define VWERASE 14
#define VEOL2   16
#define VMIN    6
#define VSWTC   7
#define VSTART  8
#define VSTOP   9

#define IXON    0002000
#define IXOFF   0010000

#define CS6     0000020
#define CS7     0000040
#define CS8     0000060
#define CSIZE   0000060
#define CSTOPB  0000100
#define CREAD   0000200
#define PARENB  0000400
#define PARODD  0001000
#define HUPCL   0002000
#define CLOCAL  0004000
#define VTIME   5

#define ISIG    0000001
#define ICANON  0000002
#define ECHOE   0000020
#define ECHOK   0000040
#define ECHONL  0000100
#define NOFLSH  0000200
#define TOSTOP  0000400
#define ECHOCTL 0001000
#define ECHOPRT 0002000
#define ECHOKE  0004000
#define FLUSHO  0010000
#define PENDIN  0040000
#define IEXTEN  0100000

extern speed_t cfgetispeed(const struct termios *);
extern speed_t cfgetospeed(const struct termios *);
extern void cfmakeraw(struct termios *);
extern int cfsetispeed(struct termios *, speed_t);
extern int cfsetospeed(struct termios *, speed_t);
extern int cfsetspeed(struct termios *, speed_t);
extern int tcflow(int, int);
extern int tcflush(int, int);
extern pid_t tcgetsid(int);
extern int tcsendbreak(int, int);
extern int tcsetattr(int, int, const struct termios *);
extern int tcdrain(int);
extern int tcgetattr(int, struct termios *);
7.3.71 time.h

extern int __daylight(void);
extern long int __timezone(void);
extern char *__tzname(void);
extern char *asctime(const struct tm *);
extern clock_t clock(void);
extern char *ctime(const time_t *);
extern char *ctime_r(const time_t *, char *);
extern double difftime(time_t, time_t);
extern struct tm *getdate(const char *);
extern int getdate_err(void);
extern struct tm *gmtime(const time_t *);
extern struct tm *localtime(const time_t *);
extern time_t mktime(struct tm *);
extern int stime(const time_t *);
extern size_t strftime(char *, size_t, const char *, const struct tm *);
extern char *strptime(const char *, const char *, struct tm *);
extern time_t time(time_t *);
extern int nanosleep(const struct timespec *, struct timespec *);
extern int daylight(void);
extern long int timezone(void);
extern char *tzname(void);
extern void tzset(void);
extern char *asctime_r(const struct tm *, char *);
extern struct tm *gmtime_r(const time_t *, struct tm *);
extern struct tm *localtime_r(const time_t *, struct tm *);
extern int clock_getcpuclockid(pid_t, clockid_t *);
extern int clock_getres(clockid_t, struct timespec *);
extern int clock_gettime(clockid_t, struct timespec *);
extern int clock_nanosleep(clockid_t, int, const struct timespec *,
                           struct timespec *);
extern int clock_settime(clockid_t, const struct timespec *);
extern int timer_create(clockid_t, struct sigevent *, timer_t *);
extern int timer_delete(timer_t);
extern int timer_getoverrun(timer_t);
extern int timer_gettime(timer_t, struct itimerspec *);
extern int timer_settime(timer_t, int, const struct itimerspec *,
                         struct itimerspec *);
7.3.72 ucontext.h

typedef int greg_t;

#define NGREG   19

typedef greg_t gregset_t[19];

struct _libc_fpreg {
    unsigned short significand[4];
    unsigned short exponent;
};

struct _libc_fpstate {
    unsigned long int cw;
    unsigned long int sw;
    unsigned long int tag;
    unsigned long int ipoff;
    unsigned long int cssel;
    unsigned long int dataoff;
    unsigned long int datasel;
    struct _libc_fpreg _st[8];
    unsigned long int status;
};
typedef struct _libc_fpstate *fpregset_t;

typedef struct {
    gregset_t gregs;
    fpregset_t fpregs;
    unsigned long int oldmask;
    unsigned long int cr2;
} mcontext_t;

typedef struct ucontext {
    unsigned long int uc_flags;
    struct ucontext *uc_link;
    stack_t uc_stack;
    mcontext_t uc_mcontext;
    sigset_t uc_sigmask;
    struct _libc_fpstate __fpregs_mem;
} ucontext_t;
extern int getcontext(ucontext_t *);
extern int makecontext(ucontext_t *, void (*func) (void)
                       , int, ...);
extern int setcontext(const struct ucontext *);
extern int swapcontext(ucontext_t *, const struct ucontext *);
7.3.73 ulimit.h

extern long int ulimit(int, ...);
7.3.74 unistd.h

typedef int intptr_t;

extern char **__environ(void);
extern pid_t __getpgid(pid_t);
extern void _exit(int);
extern int acct(const char *);
extern unsigned int alarm(unsigned int);
extern int chown(const char *, uid_t, gid_t);
extern int chroot(const char *);
extern size_t confstr(int, char *, size_t);
extern int creat(const char *, mode_t);
extern int creat64(const char *, mode_t);
extern char *ctermid(char *);
extern char *cuserid(char *);
extern int daemon(int, int);
extern int execl(const char *, const char *, ...);
extern int execle(const char *, const char *, ...);
extern int execlp(const char *, const char *, ...);
extern int execv(const char *, char *const);
extern int execvp(const char *, char *const);
extern int fdatasync(int);
extern int ftruncate64(int, off64_t);
extern long int gethostid(void);
extern char *getlogin(void);
extern int getlogin_r(char *, size_t);
extern int getopt(int, char *const, const char *);
extern pid_t getpgrp(void);
extern pid_t getsid(pid_t);
extern char *getwd(char *);
extern int lockf(int, int, off_t);
extern int mkstemp(char *);
extern int nice(int);
extern char *optarg(void);
extern int opterr(void);
extern int optind(void);
extern int optopt(void);
extern int rename(const char *, const char *);
extern int setegid(gid_t);
extern int seteuid(uid_t);
extern int sethostname(const char *, size_t);
extern int setpgrp(void);
extern void swab(const void *, void *, ssize_t);
extern void sync(void);
extern pid_t tcgetpgrp(int);
extern int tcsetpgrp(int, pid_t);
extern int truncate(const char *, off_t);
extern int truncate64(const char *, off64_t);
extern char *ttyname(int);
extern unsigned int ualarm(useconds_t, useconds_t);
extern int usleep(useconds_t);
extern int close(int);
extern int fsync(int);
extern off_t lseek(int, off_t, int);
extern int open(const char *, int, ...);
extern int pause(void);
extern ssize_t read(int, void *, size_t);
extern ssize_t write(int, const void *, size_t);
extern char *crypt(char *, char *);
extern void encrypt(char *, int);
extern void setkey(const char *);
extern int access(const char *, int);
extern int brk(void *);
extern int chdir(const char *);
extern int dup(int);
extern int dup2(int, int);
extern int execve(const char *, char *const, char *const);
extern int fchdir(int);
extern int fchown(int, uid_t, gid_t);
extern pid_t fork(void);
extern gid_t getegid(void);
extern uid_t geteuid(void);
extern gid_t getgid(void);
extern int getgroups(int, gid_t);
extern int gethostname(char *, size_t);
extern pid_t getpgid(pid_t);
extern pid_t getpid(void);
extern uid_t getuid(void);
extern int lchown(const char *, uid_t, gid_t);
extern int link(const char *, const char *);
extern int mkdir(const char *, mode_t);
extern long int pathconf(const char *, int);
extern int pipe(int);
extern int readlink(const char *, char *, size_t);
extern int rmdir(const char *);
extern void *sbrk(ptrdiff_t);
extern int select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
extern int setgid(gid_t);
extern int setpgid(pid_t, pid_t);
extern int setregid(gid_t, gid_t);
extern int setreuid(uid_t, uid_t);
extern pid_t setsid(void);
extern int setuid(uid_t);
extern unsigned int sleep(unsigned int);
extern int symlink(const char *, const char *);
extern long int sysconf(int);
extern int unlink(const char *);
extern pid_t vfork(void);
extern ssize_t pread(int, void *, size_t, off_t);
extern ssize_t pwrite(int, const void *, size_t, off_t);
extern char **_environ(void);
extern long int fpathconf(int, int);
extern int ftruncate(int, off_t);
extern char *getcwd(char *, size_t);
extern int getpagesize(void);
extern pid_t getppid(void);
extern int isatty(int);
extern loff_t lseek64(int, loff_t, int);
extern int open64(const char *, int, ...);
extern ssize_t pread64(int, void *, size_t, off64_t);
extern ssize_t pwrite64(int, const void *, size_t, off64_t);
extern int ttyname_r(int, char *, size_t);
7.3.75 utime.h

extern int utime(const char *, const struct utimbuf *);
7.3.76 utmp.h

struct lastlog {
    time_t ll_time;
    char ll_line[UT_LINESIZE];
    char ll_host[UT_HOSTSIZE];
};

struct utmp {
    short ut_type;
    pid_t ut_pid;
    char ut_line[UT_LINESIZE];
    char ut_id[4];
    char ut_user[UT_NAMESIZE];
    char ut_host[UT_HOSTSIZE];
    struct exit_status ut_exit;
    long int ut_session;
    struct timeval ut_tv;
    int32_t ut_addr_v6[4];
    char __unused[20];
};

extern void endutent(void);
extern struct utmp *getutent(void);
extern void setutent(void);
extern int getutent_r(struct utmp *, struct utmp **);
extern int utmpname(const char *);
extern int login_tty(int);
extern void login(const struct utmp *);
extern int logout(const char *);
extern void logwtmp(const char *, const char *, const char *);
7.3.77 utmpx.h

struct utmpx {
    short ut_type;
    pid_t ut_pid;
    char ut_line[UT_LINESIZE];
    char ut_id[4];
    char ut_user[UT_NAMESIZE];
    char ut_host[UT_HOSTSIZE];
    struct exit_status ut_exit;
    long int ut_session;
    struct timeval ut_tv;
    int32_t ut_addr_v6[4];
    char __unused[20];
};

extern void endutxent(void);
extern struct utmpx *getutxent(void);
extern struct utmpx *getutxid(const struct utmpx *);
extern struct utmpx *getutxline(const struct utmpx *);
extern struct utmpx *pututxline(const struct utmpx *);
extern void setutxent(void);
7.3.78 wchar.h

extern double __wcstod_internal(const wchar_t *, wchar_t * *, int);
extern float __wcstof_internal(const wchar_t *, wchar_t * *, int);
extern long int __wcstol_internal(const wchar_t *, wchar_t * *, int, int);
extern long double __wcstold_internal(const wchar_t *, wchar_t * *, int);
extern unsigned long int __wcstoul_internal(const wchar_t *, wchar_t * *,
                                            int, int);
extern wchar_t *wcscat(wchar_t *, const wchar_t *);
extern wchar_t *wcschr(const wchar_t *, wchar_t);
extern int wcscmp(const wchar_t *, const wchar_t *);
extern int wcscoll(const wchar_t *, const wchar_t *);
extern wchar_t *wcscpy(wchar_t *, const wchar_t *);
extern size_t wcscspn(const wchar_t *, const wchar_t *);
extern wchar_t *wcsdup(const wchar_t *);
extern wchar_t *wcsncat(wchar_t *, const wchar_t *, size_t);
extern int wcsncmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t *wcsncpy(wchar_t *, const wchar_t *, size_t);
extern wchar_t *wcspbrk(const wchar_t *, const wchar_t *);
extern wchar_t *wcsrchr(const wchar_t *, wchar_t);
extern size_t wcsspn(const wchar_t *, const wchar_t *);
extern wchar_t *wcsstr(const wchar_t *, const wchar_t *);
extern wchar_t *wcstok(wchar_t *, const wchar_t *, wchar_t * *);
extern int wcswidth(const wchar_t *, size_t);
extern size_t wcsxfrm(wchar_t *, const wchar_t *, size_t);
extern int wctob(wint_t);
extern int wcwidth(wchar_t);
extern wchar_t *wmemchr(const wchar_t *, wchar_t, size_t);
extern int wmemcmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t *wmemcpy(wchar_t *, const wchar_t *, size_t);
extern wchar_t *wmemmove(wchar_t *, const wchar_t *, size_t);
extern wchar_t *wmemset(wchar_t *, wchar_t, size_t);
extern size_t mbrlen(const char *, size_t, mbstate_t *);
extern size_t mbrtowc(wchar_t *, const char *, size_t, mbstate_t *);
extern int mbsinit(const mbstate_t *);
extern size_t mbsnrtowcs(wchar_t *, const char **, size_t, size_t,
                         mbstate_t *);
extern size_t mbsrtowcs(wchar_t *, const char **, size_t, mbstate_t *);
extern wchar_t *wcpcpy(wchar_t *, const wchar_t *);
extern wchar_t *wcpncpy(wchar_t *, const wchar_t *, size_t);
extern size_t wcrtomb(char *, wchar_t, mbstate_t *);
extern size_t wcslen(const wchar_t *);
extern size_t wcsnrtombs(char *, const wchar_t * *, size_t, size_t,
                         mbstate_t *);
extern size_t wcsrtombs(char *, const wchar_t * *, size_t, mbstate_t *);
extern double wcstod(const wchar_t *, wchar_t * *);
extern float wcstof(const wchar_t *, wchar_t * *);
extern long int wcstol(const wchar_t *, wchar_t * *, int);
extern long double wcstold(const wchar_t *, wchar_t * *);
extern long long int wcstoq(const wchar_t *, wchar_t * *, int);
extern unsigned long int wcstoul(const wchar_t *, wchar_t * *, int);
extern unsigned long long int wcstouq(const wchar_t *, wchar_t * *, int);
extern wchar_t *wcswcs(const wchar_t *, const wchar_t *);
extern int wcscasecmp(const wchar_t *, const wchar_t *);
extern int wcsncasecmp(const wchar_t *, const wchar_t *, size_t);
extern size_t wcsnlen(const wchar_t *, size_t);
extern long long int wcstoll(const wchar_t *, wchar_t * *, int);
extern unsigned long long int wcstoull(const wchar_t *, wchar_t * *, int);
extern wint_t btowc(int);
extern wint_t fgetwc(FILE *);
extern wint_t fgetwc_unlocked(FILE *);
extern wchar_t *fgetws(wchar_t *, int, FILE *);
extern wint_t fputwc(wchar_t, FILE *);
extern int fputws(const wchar_t *, FILE *);
extern int fwide(FILE *, int);
extern int fwprintf(FILE *, const wchar_t *, ...);
extern int fwscanf(FILE *, const wchar_t *, ...);
extern wint_t getwc(FILE *);
extern wint_t getwchar(void);
extern wint_t putwc(wchar_t, FILE *);
extern wint_t putwchar(wchar_t);
extern int swprintf(wchar_t *, size_t, const wchar_t *, ...);
extern int swscanf(const wchar_t *, const wchar_t *, ...);
extern wint_t ungetwc(wint_t, FILE *);
extern int vfwprintf(FILE *, const wchar_t *, va_list);
extern int vfwscanf(FILE *, const wchar_t *, va_list);
extern int vswprintf(wchar_t *, size_t, const wchar_t *, va_list);
extern int vswscanf(const wchar_t *, const wchar_t *, va_list);
extern int vwprintf(const wchar_t *, va_list);
extern int vwscanf(const wchar_t *, va_list);
extern size_t wcsftime(wchar_t *, size_t, const wchar_t *,
                       const struct tm *);
extern int wprintf(const wchar_t *, ...);
extern int wscanf(const wchar_t *, ...);
7.3.79 wctype.h

extern int iswblank(wint_t);
extern wint_t towlower(wint_t);
extern wint_t towupper(wint_t);
extern wctrans_t wctrans(const char *);
extern int iswalnum(wint_t);
extern int iswalpha(wint_t);
extern int iswcntrl(wint_t);
extern int iswctype(wint_t, wctype_t);
extern int iswdigit(wint_t);
extern int iswgraph(wint_t);
extern int iswlower(wint_t);
extern int iswprint(wint_t);
extern int iswpunct(wint_t);
extern int iswspace(wint_t);
extern int iswupper(wint_t);
extern int iswxdigit(wint_t);
extern wctype_t wctype(const char *);
extern wint_t towctrans(wint_t, wctrans_t);
7.3.80 wordexp.h

extern int wordexp(const char *, wordexp_t *, int);
extern void wordfree(wordexp_t *);
7.4 Interfaces for libm
Table 7-24 defines the library name and shared object name for the libm library
Table 7-24 libm Definition
Library: | libm
SONAME: | libm.so.6

The behavior of the interfaces in this library is specified by the following specifications:
[ISOC99] ISO C (1999)
[LSB] This Specification
[SUSv2] SUSv2
[SUSv3] ISO POSIX (2003)

7.4.1 Math
7.4.1.1 Interfaces for Math
An LSB conforming implementation shall provide the architecture specific functions for Math specified in Table 7-25, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-25 libm - Math Function Interfaces
__finite(GLIBC_2.1) [ISOC99] | __finitef(GLIBC_2.1) [ISOC99] | __finitel(GLIBC_2.1) [ISOC99] | __fpclassify(GLIBC_2.1) [LSB]
__fpclassifyf(GLIBC_2.1) [LSB] | __fpclassifyl(GLIBC_2.1) [LSB] | __signbit(GLIBC_2.1) [ISOC99] | __signbitf(GLIBC_2.1) [ISOC99]
__signbitl(GLIBC_2.1) [ISOC99] | acos(GLIBC_2.0) [SUSv3] | acosf(GLIBC_2.0) [SUSv3] | acosh(GLIBC_2.0) [SUSv3]
acoshf(GLIBC_2.0) [SUSv3] | acoshl(GLIBC_2.0) [SUSv3] | acosl(GLIBC_2.0) [SUSv3] | asin(GLIBC_2.0) [SUSv3]
asinf(GLIBC_2.0) [SUSv3] | asinh(GLIBC_2.0) [SUSv3] | asinhf(GLIBC_2.0) [SUSv3] | asinhl(GLIBC_2.0) [SUSv3]
asinl(GLIBC_2.0) [SUSv3] | atan(GLIBC_2.0) [SUSv3] | atan2(GLIBC_2.0) [SUSv3] | atan2f(GLIBC_2.0) [SUSv3]
atan2l(GLIBC_2.0) [SUSv3] | atanf(GLIBC_2.0) [SUSv3] | atanh(GLIBC_2.0) [SUSv3] | atanhf(GLIBC_2.0) [SUSv3]
atanhl(GLIBC_2.0) [SUSv3] | atanl(GLIBC_2.0) [SUSv3] | cabs(GLIBC_2.1) [SUSv3] | cabsf(GLIBC_2.1) [SUSv3]
cabsl(GLIBC_2.1) [SUSv3] | cacos(GLIBC_2.1) [SUSv3] | cacosf(GLIBC_2.1) [SUSv3] | cacosh(GLIBC_2.1) [SUSv3]
cacoshf(GLIBC_2.1) [SUSv3] | cacoshl(GLIBC_2.1) [SUSv3] | cacosl(GLIBC_2.1) [SUSv3] | carg(GLIBC_2.1) [SUSv3]
cargf(GLIBC_2.1) [SUSv3] | cargl(GLIBC_2.1) [SUSv3] | casin(GLIBC_2.1) [SUSv3] | casinf(GLIBC_2.1) [SUSv3]
casinh(GLIBC_2.1) [SUSv3] | casinhf(GLIBC_2.1) [SUSv3] | casinhl(GLIBC_2.1) [SUSv3] | casinl(GLIBC_2.1) [SUSv3]
catan(GLIBC_2.1) [SUSv3] | catanf(GLIBC_2.1) [SUSv3] | catanh(GLIBC_2.1) [SUSv3] | catanhf(GLIBC_2.1) [SUSv3]
catanhl(GLIBC_2.1) [SUSv3] | catanl(GLIBC_2.1) [SUSv3] | cbrt(GLIBC_2.0) [SUSv3] | cbrtf(GLIBC_2.0) [SUSv3]
cbrtl(GLIBC_2.0) [SUSv3] | ccos(GLIBC_2.1) [SUSv3] | ccosf(GLIBC_2.1) [SUSv3] | ccosh(GLIBC_2.1) [SUSv3]
ccoshf(GLIBC_2.1) [SUSv3] | ccoshl(GLIBC_2.1) [SUSv3] | ccosl(GLIBC_2.1) [SUSv3] | ceil(GLIBC_2.0) [SUSv3]
ceilf(GLIBC_2.0) [SUSv3] | ceill(GLIBC_2.0) [SUSv3] | cexp(GLIBC_2.1) [SUSv3] | cexpf(GLIBC_2.1) [SUSv3]
cexpl(GLIBC_2.1) [SUSv3] | cimag(GLIBC_2.1) [SUSv3] | cimagf(GLIBC_2.1) [SUSv3] | cimagl(GLIBC_2.1) [SUSv3]
clog(GLIBC_2.1) [SUSv3] | clog10(GLIBC_2.1) [ISOC99] | clog10f(GLIBC_2.1) [ISOC99] | clog10l(GLIBC_2.1) [ISOC99]
clogf(GLIBC_2.1) [SUSv3] | clogl(GLIBC_2.1) [SUSv3] | conj(GLIBC_2.1) [SUSv3] | conjf(GLIBC_2.1) [SUSv3]
conjl(GLIBC_2.1) [SUSv3] | copysign(GLIBC_2.0) [SUSv3] | copysignf(GLIBC_2.0) [SUSv3] | copysignl(GLIBC_2.0) [SUSv3]
cos(GLIBC_2.0) [SUSv3] | cosf(GLIBC_2.0) [SUSv3] | cosh(GLIBC_2.0) [SUSv3] | coshf(GLIBC_2.0) [SUSv3]
coshl(GLIBC_2.0) [SUSv3] | cosl(GLIBC_2.0) [SUSv3] | cpow(GLIBC_2.1) [SUSv3] | cpowf(GLIBC_2.1) [SUSv3]
cpowl(GLIBC_2.1) [SUSv3] | cproj(GLIBC_2.1) [SUSv3] | cprojf(GLIBC_2.1) [SUSv3] | cprojl(GLIBC_2.1) [SUSv3]
creal(GLIBC_2.1) [SUSv3] | crealf(GLIBC_2.1) [SUSv3] | creall(GLIBC_2.1) [SUSv3] | csin(GLIBC_2.1) [SUSv3]
csinf(GLIBC_2.1) [SUSv3] | csinh(GLIBC_2.1) [SUSv3] | csinhf(GLIBC_2.1) [SUSv3] | csinhl(GLIBC_2.1) [SUSv3]
csinl(GLIBC_2.1) [SUSv3] | csqrt(GLIBC_2.1) [SUSv3] | csqrtf(GLIBC_2.1) [SUSv3] | csqrtl(GLIBC_2.1) [SUSv3]
ctan(GLIBC_2.1) [SUSv3] | ctanf(GLIBC_2.1) [SUSv3] | ctanh(GLIBC_2.1) [SUSv3] | ctanhf(GLIBC_2.1) [SUSv3]
ctanhl(GLIBC_2.1) [SUSv3] | ctanl(GLIBC_2.1) [SUSv3] | dremf(GLIBC_2.0) [ISOC99] | dreml(GLIBC_2.0) [ISOC99]
erf(GLIBC_2.0) [SUSv3] | erfc(GLIBC_2.0) [SUSv3] | erfcf(GLIBC_2.0) [SUSv3] | erfcl(GLIBC_2.0) [SUSv3]
erff(GLIBC_2.0) [SUSv3] | erfl(GLIBC_2.0) [SUSv3] | exp(GLIBC_2.0) [SUSv3] | exp2(GLIBC_2.1) [SUSv3]
exp2f(GLIBC_2.1) [SUSv3] | exp2l(GLIBC_2.1) [SUSv3] | expf(GLIBC_2.0) [SUSv3] | expl(GLIBC_2.0) [SUSv3]
expm1(GLIBC_2.0) [SUSv3] | expm1f(GLIBC_2.0) [SUSv3] | expm1l(GLIBC_2.0) [SUSv3] | fabs(GLIBC_2.0) [SUSv3]
fabsf(GLIBC_2.0) [SUSv3] | fabsl(GLIBC_2.0) [SUSv3] | fdim(GLIBC_2.1) [SUSv3] | fdimf(GLIBC_2.1) [SUSv3]
fdiml(GLIBC_2.1) [SUSv3] | feclearexcept(GLIBC_2.2) [SUSv3] | fegetenv(GLIBC_2.2) [SUSv3] | fegetexceptflag(GLIBC_2.2) [SUSv3]
fegetround(GLIBC_2.1) [SUSv3] | feholdexcept(GLIBC_2.1) [SUSv3] | feraiseexcept(GLIBC_2.2) [SUSv3] | fesetenv(GLIBC_2.2) [SUSv3]
fesetexceptflag(GLIBC_2.2) [SUSv3] | fesetround(GLIBC_2.1) [SUSv3] | fetestexcept(GLIBC_2.1) [SUSv3] | feupdateenv(GLIBC_2.2) [SUSv3]
finite(GLIBC_2.0) [SUSv2] | finitef(GLIBC_2.0) [ISOC99] | finitel(GLIBC_2.0) [ISOC99] | floor(GLIBC_2.0) [SUSv3]
floorf(GLIBC_2.0) [SUSv3] | floorl(GLIBC_2.0) [SUSv3] | fma(GLIBC_2.1) [SUSv3] | fmaf(GLIBC_2.1) [SUSv3]
fmal(GLIBC_2.1) [SUSv3] | fmax(GLIBC_2.1) [SUSv3] | fmaxf(GLIBC_2.1) [SUSv3] | fmaxl(GLIBC_2.1) [SUSv3]
fmin(GLIBC_2.1) [SUSv3] | fminf(GLIBC_2.1) [SUSv3] | fminl(GLIBC_2.1) [SUSv3] | fmod(GLIBC_2.0) [SUSv3]
fmodf(GLIBC_2.0) [SUSv3] | fmodl(GLIBC_2.0) [SUSv3] | frexp(GLIBC_2.0) [SUSv3] | frexpf(GLIBC_2.0) [SUSv3]
frexpl(GLIBC_2.0) [SUSv3] | gamma(GLIBC_2.0) [SUSv2] | gammaf(GLIBC_2.0) [ISOC99] | gammal(GLIBC_2.0) [ISOC99]
hypot(GLIBC_2.0) [SUSv3] | hypotf(GLIBC_2.0) [SUSv3] | hypotl(GLIBC_2.0) [SUSv3] | ilogb(GLIBC_2.0) [SUSv3]
ilogbf(GLIBC_2.0) [SUSv3] | ilogbl(GLIBC_2.0) [SUSv3] | j0(GLIBC_2.0) [SUSv3] | j0f(GLIBC_2.0) [ISOC99]
j0l(GLIBC_2.0) [ISOC99] | j1(GLIBC_2.0) [SUSv3] | j1f(GLIBC_2.0) [ISOC99] | j1l(GLIBC_2.0) [ISOC99]
jn(GLIBC_2.0) [SUSv3] | jnf(GLIBC_2.0) [ISOC99] | jnl(GLIBC_2.0) [ISOC99] | ldexp(GLIBC_2.0) [SUSv3]
ldexpf(GLIBC_2.0) [SUSv3] | ldexpl(GLIBC_2.0) [SUSv3] | lgamma(GLIBC_2.0) [SUSv3] | lgamma_r(GLIBC_2.0) [ISOC99]
lgammaf(GLIBC_2.0) [SUSv3] | lgammaf_r(GLIBC_2.0) [ISOC99] | lgammal(GLIBC_2.0) [SUSv3] | lgammal_r(GLIBC_2.0) [ISOC99]
llrint(GLIBC_2.1) [SUSv3] | llrintf(GLIBC_2.1) [SUSv3] | llrintl(GLIBC_2.1) [SUSv3] | llround(GLIBC_2.1) [SUSv3]
llroundf(GLIBC_2.1) [SUSv3] | llroundl(GLIBC_2.1) [SUSv3] | log(GLIBC_2.0) [SUSv3] | log10(GLIBC_2.0) [SUSv3]
log10f(GLIBC_2.0) [SUSv3] | log10l(GLIBC_2.0) [SUSv3] | log1p(GLIBC_2.0) [SUSv3] | log1pf(GLIBC_2.0) [SUSv3]
log1pl(GLIBC_2.0) [SUSv3] | log2(GLIBC_2.1) [SUSv3] | log2f(GLIBC_2.1) [SUSv3] | log2l(GLIBC_2.1) [SUSv3]
logb(GLIBC_2.0) [SUSv3] | logbf(GLIBC_2.0) [SUSv3] | logbl(GLIBC_2.0) [SUSv3] | logf(GLIBC_2.0) [SUSv3]
logl(GLIBC_2.0) [SUSv3] | lrint(GLIBC_2.1) [SUSv3] | lrintf(GLIBC_2.1) [SUSv3] | lrintl(GLIBC_2.1) [SUSv3]
lround(GLIBC_2.1) [SUSv3] | lroundf(GLIBC_2.1) [SUSv3] | lroundl(GLIBC_2.1) [SUSv3] | matherr(GLIBC_2.0) [ISOC99]
modf(GLIBC_2.0) [SUSv3] | modff(GLIBC_2.0) [SUSv3] | modfl(GLIBC_2.0) [SUSv3] | nan(GLIBC_2.1) [SUSv3]
nanf(GLIBC_2.1) [SUSv3] | nanl(GLIBC_2.1) [SUSv3] | nearbyint(GLIBC_2.1) [SUSv3] | nearbyintf(GLIBC_2.1) [SUSv3]
nearbyintl(GLIBC_2.1) [SUSv3] | nextafter(GLIBC_2.0) [SUSv3] | nextafterf(GLIBC_2.0) [SUSv3] | nextafterl(GLIBC_2.0) [SUSv3]
nexttoward(GLIBC_2.1) [SUSv3] | nexttowardf(GLIBC_2.1) [SUSv3] | nexttowardl(GLIBC_2.1) [SUSv3] | pow(GLIBC_2.0) [SUSv3]
pow10(GLIBC_2.1) [ISOC99] | pow10f(GLIBC_2.1) [ISOC99] | pow10l(GLIBC_2.1) [ISOC99] | powf(GLIBC_2.0) [SUSv3]
powl(GLIBC_2.0) [SUSv3] | remainder(GLIBC_2.0) [SUSv3] | remainderf(GLIBC_2.0) [SUSv3] | remainderl(GLIBC_2.0) [SUSv3]
remquo(GLIBC_2.1) [SUSv3] | remquof(GLIBC_2.1) [SUSv3] | remquol(GLIBC_2.1) [SUSv3] | rint(GLIBC_2.0) [SUSv3]
rintf(GLIBC_2.0) [SUSv3] | rintl(GLIBC_2.0) [SUSv3] | round(GLIBC_2.1) [SUSv3] | roundf(GLIBC_2.1) [SUSv3]
roundl(GLIBC_2.1) [SUSv3] | scalb(GLIBC_2.0) [SUSv3] | scalbf(GLIBC_2.0) [ISOC99] | scalbl(GLIBC_2.0) [ISOC99]
scalbln(GLIBC_2.1) [SUSv3] | scalblnf(GLIBC_2.1) [SUSv3] | scalblnl(GLIBC_2.1) [SUSv3] | scalbn(GLIBC_2.0) [SUSv3]
scalbnf(GLIBC_2.0) [SUSv3] | scalbnl(GLIBC_2.0) [SUSv3] | significand(GLIBC_2.0) [ISOC99] | significandf(GLIBC_2.0) [ISOC99]
significandl(GLIBC_2.0) [ISOC99] | sin(GLIBC_2.0) [SUSv3] | sincos(GLIBC_2.1) [ISOC99] | sincosf(GLIBC_2.1) [ISOC99]
sincosl(GLIBC_2.1) [ISOC99] | sinf(GLIBC_2.0) [SUSv3] | sinh(GLIBC_2.0) [SUSv3] | sinhf(GLIBC_2.0) [SUSv3]
sinhl(GLIBC_2.0) [SUSv3] | sinl(GLIBC_2.0) [SUSv3] | sqrt(GLIBC_2.0) [SUSv3] | sqrtf(GLIBC_2.0) [SUSv3]
sqrtl(GLIBC_2.0) [SUSv3] | tan(GLIBC_2.0) [SUSv3] | tanf(GLIBC_2.0) [SUSv3] | tanh(GLIBC_2.0) [SUSv3]
tanhf(GLIBC_2.0) [SUSv3] | tanhl(GLIBC_2.0) [SUSv3] | tanl(GLIBC_2.0) [SUSv3] | tgamma(GLIBC_2.1) [SUSv3]
tgammaf(GLIBC_2.1) [SUSv3] | tgammal(GLIBC_2.1) [SUSv3] | trunc(GLIBC_2.1) [SUSv3] | truncf(GLIBC_2.1) [SUSv3]
truncl(GLIBC_2.1) [SUSv3] | y0(GLIBC_2.0) [SUSv3] | y0f(GLIBC_2.0) [ISOC99] | y0l(GLIBC_2.0) [ISOC99]
y1(GLIBC_2.0) [SUSv3] | y1f(GLIBC_2.0) [ISOC99] | y1l(GLIBC_2.0) [ISOC99] | yn(GLIBC_2.0) [SUSv3]
ynf(GLIBC_2.0) [ISOC99] | ynl(GLIBC_2.0) [ISOC99] | |

An LSB conforming implementation shall provide the architecture specific data interfaces for Math specified in Table 7-26, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-26 libm - Math Data Interfaces
signgam(GLIBC_2.0) [SUSv3] | | |

7.5 Data Definitions for libm
This section defines global identifiers and their values that are associated with interfaces contained in libm. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C format. The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
7.5.1 complex.h

extern double cabs(double complex);
extern float cabsf(float complex);
extern long double cabsl(long double complex);
extern double complex cacos(double complex);
extern float complex cacosf(float complex);
extern double complex cacosh(double complex);
extern float complex cacoshf(float complex);
extern long double complex cacoshl(long double complex);
extern long double complex cacosl(long double complex);
extern double carg(double complex);
extern float cargf(float complex);
extern long double cargl(long double complex);
extern double complex casin(double complex);
extern float complex casinf(float complex);
extern double complex casinh(double complex);
extern float complex casinhf(float complex);
extern long double complex casinhl(long double complex);
extern long double complex casinl(long double complex);
extern double complex catan(double complex);
extern float complex catanf(float complex);
extern double complex catanh(double complex);
extern float complex catanhf(float complex);
extern long double complex catanhl(long double complex);
extern long double complex catanl(long double complex);
extern double complex ccos(double complex);
extern float complex ccosf(float complex);
extern double complex ccosh(double complex);
extern float complex ccoshf(float complex);
extern long double complex ccoshl(long double complex);
extern long double complex ccosl(long double complex);
extern double complex cexp(double complex);
extern float complex cexpf(float complex);
extern long double complex cexpl(long double complex);
extern double cimag(double complex);
extern float cimagf(float complex);
extern long double cimagl(long double complex);
extern double complex clog(double complex);
extern float complex clog10f(float complex);
extern long double complex clog10l(long double complex);
extern float complex clogf(float complex);
extern long double complex clogl(long double complex);
extern double complex conj(double complex);
extern float complex conjf(float complex);
extern long double complex conjl(long double complex);
extern double complex cpow(double complex, double complex);
extern float complex cpowf(float complex, float complex);
extern long double complex cpowl(long double complex, long double complex);
extern double complex cproj(double complex);
extern float complex cprojf(float complex);
extern long double complex cprojl(long double complex);
extern double creal(double complex);
extern float crealf(float complex);
extern long double creall(long double complex);
extern double complex csin(double complex);
extern float complex csinf(float complex);
extern double complex csinh(double complex);
extern float complex csinhf(float complex);
extern long double complex csinhl(long double complex);
extern long double complex csinl(long double complex);
extern double complex csqrt(double complex);
extern float complex csqrtf(float complex);
extern long double complex csqrtl(long double complex);
extern double complex ctan(double complex);
extern float complex ctanf(float complex);
extern double complex ctanh(double complex);
extern float complex ctanhf(float complex);
extern long double complex ctanhl(long double complex);
extern long double complex ctanl(long double complex);
7.5.2 fenv.h

#define FE_INVALID      0x01
#define FE_DIVBYZERO    0x04
#define FE_OVERFLOW     0x08
#define FE_UNDERFLOW    0x10
#define FE_INEXACT      0x20

#define FE_ALL_EXCEPT   \
        (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)

#define FE_TONEAREST    0
#define FE_DOWNWARD     0x400
#define FE_UPWARD       0x800
#define FE_TOWARDZERO   0xc00

typedef unsigned short fexcept_t;

typedef struct {
    unsigned short __control_word;
    unsigned short __unused1;
    unsigned short __status_word;
    unsigned short __unused2;
    unsigned short __tags;
    unsigned short __unused3;
    unsigned int __eip;
    unsigned short __cs_selector;
    unsigned int __opcode:11;
    unsigned int __unused4:5;
    unsigned int __data_offset;
    unsigned short __data_selector;
    unsigned short __unused5;
} fenv_t;

#define FE_DFL_ENV      ((__const fenv_t *) -1)

extern int feclearexcept(int);
extern int fegetenv(fenv_t *);
extern int fegetexceptflag(fexcept_t *, int);
extern int fegetround(void);
extern int feholdexcept(fenv_t *);
extern int feraiseexcept(int);
extern int fesetenv(const fenv_t *);
extern int fesetexceptflag(const fexcept_t *, int);
extern int fesetround(int);
extern int fetestexcept(int);
extern int feupdateenv(const fenv_t *);
7.5.3 math.h

#define fpclassify(x)   \
        (sizeof (x) == sizeof (float) ? __fpclassifyf (x) :sizeof (x) == sizeof (double) ? __fpclassify (x) : __fpclassifyl (x))
#define signbit(x)      \
        (sizeof (x) == sizeof (float)? __signbitf (x): sizeof (x) == sizeof (double)? __signbit (x) : __signbitl (x))

#define FP_ILOGB0       (-2147483647 - 1)
#define FP_ILOGBNAN     (-2147483647 - 1)

extern int __finite(double);
extern int __finitef(float);
extern int __finitel(long double);
extern int __isinf(double);
extern int __isinff(float);
extern int __isinfl(long double);
extern int __isnan(double);
extern int __isnanf(float);
extern int __isnanl(long double);
extern int __signbit(double);
extern int __signbitf(float);
extern int __fpclassify(double);
extern int __fpclassifyf(float);
extern int __fpclassifyl(long double);
extern int signgam(void);
extern double copysign(double, double);
extern int finite(double);
extern double frexp(double, int *);
extern double ldexp(double, int);
extern double modf(double, double *);
extern double acos(double);
extern double acosh(double);
extern double asinh(double);
extern double atanh(double);
extern double asin(double);
extern double atan(double);
extern double atan2(double, double);
extern double cbrt(double);
extern double ceil(double);
extern double cos(double);
extern double cosh(double);
extern double erf(double);
extern double erfc(double);
extern double exp(double);
extern double expm1(double);
extern double fabs(double);
extern double floor(double);
extern double fmod(double, double);
extern double gamma(double);
extern double hypot(double, double);
extern int ilogb(double);
extern double j0(double);
extern double j1(double);
extern double jn(int, double);
extern double lgamma(double);
extern double log(double);
extern double log10(double);
extern double log1p(double);
extern double logb(double);
extern double nextafter(double, double);
extern double pow(double, double);
extern double remainder(double, double);
extern double rint(double);
extern double scalb(double, double);
extern double sin(double);
extern double sinh(double);
extern double sqrt(double);
extern double tan(double);
extern double tanh(double);
extern double y0(double);
extern double y1(double);
extern double yn(int, double);
extern float copysignf(float, float);
extern long double copysignl(long double, long double);
extern int finitef(float);
extern int finitel(long double);
extern float frexpf(float, int *);
extern long double frexpl(long double, int *);
extern float ldexpf(float, int);
extern long double ldexpl(long double, int);
extern float modff(float, float *);
extern long double modfl(long double, long double *);
extern double scalbln(double, long int);
extern float scalblnf(float, long int);
extern long double scalblnl(long double, long int);
extern double scalbn(double, int);
extern float scalbnf(float, int);
extern long double scalbnl(long double, int);
extern float acosf(float);
extern float acoshf(float);
extern long double acoshl(long double);
extern long double acosl(long double);
extern float asinf(float);
extern float asinhf(float);
extern long double asinhl(long double);
extern long double asinl(long double);
extern float atan2f(float, float);
extern long double atan2l(long double, long double);
extern float atanf(float);
extern float atanhf(float);
extern long double atanhl(long double);
extern long double atanl(long double);
extern float cbrtf(float);
extern long double cbrtl(long double);
extern float ceilf(float);
extern long double ceill(long double);
extern float cosf(float);
extern float coshf(float);
extern long double coshl(long double);
extern long double cosl(long double);
extern float dremf(float, float);
extern long double dreml(long double, long double);
extern float erfcf(float);
extern long double erfcl(long double);
extern float erff(float);
extern long double erfl(long double);
extern double exp2(double);
extern float exp2f(float);
extern long double exp2l(long double);
extern float expf(float);
extern long double expl(long double);
extern float expm1f(float);
extern long double expm1l(long double);
extern float fabsf(float);
extern long double fabsl(long double);
extern double fdim(double, double);
extern float fdimf(float, float);
extern long double fdiml(long double, long double);
extern float floorf(float);
extern long double floorl(long double);
extern double fma(double, double, double);
extern float fmaf(float, float, float);
extern long double fmal(long double, long double, long double);
extern double fmax(double, double);
extern float fmaxf(float, float);
extern long double fmaxl(long double, long double);
extern double fmin(double, double);
extern float fminf(float, float);
extern long double fminl(long double, long double);
extern float fmodf(float, float);
extern long double fmodl(long double, long double);
extern float gammaf(float);
extern long double gammal(long double);
extern float hypotf(float, float);
extern long double hypotl(long double, long double);
extern int ilogbf(float);
extern int ilogbl(long double);
extern float j0f(float);
extern long double j0l(long double);
extern float j1f(float);
extern long double j1l(long double);
extern float jnf(int, float);
extern long double jnl(int, long double);
extern double lgamma_r(double, int *);
extern float lgammaf(float);
extern float lgammaf_r(float, int *);
extern long double lgammal(long double);
extern long double lgammal_r(long double, int *);
extern long long int llrint(double);
extern long long int llrintf(float);
extern long long int llrintl(long double);
extern long long int llround(double);
extern long long int llroundf(float);
extern long long int llroundl(long double);
extern float log10f(float);
extern long double log10l(long double);
extern float log1pf(float);
extern long double log1pl(long double);
extern double log2(double);
extern float log2f(float);
extern long double log2l(long double);
extern float logbf(float);
extern long double logbl(long double);
extern float logf(float);
extern long double logl(long double);
extern long int lrint(double);
extern long int lrintf(float);
extern long int lrintl(long double);
extern long int lround(double);
extern long int lroundf(float);
extern long int lroundl(long double);
extern int matherr(struct exception *);
extern double nan(const char *);
extern float nanf(const char *);
extern long double nanl(const char *);
extern double nearbyint(double);
extern float nearbyintf(float);
extern long double nearbyintl(long double);
extern float nextafterf(float, float);
extern long double nextafterl(long double, long double);
extern double nexttoward(double, long double);
extern float nexttowardf(float, long double);
extern long double nexttowardl(long double, long double);
extern double pow10(double);
extern float pow10f(float);
extern long double pow10l(long double);
extern float powf(float, float);
extern long double powl(long double, long double);
extern float remainderf(float, float);
extern long double remainderl(long double, long double);
extern double remquo(double, double, int *);
extern float remquof(float, float, int *);
extern long double remquol(long double, long double, int *);
extern float rintf(float);
extern long double rintl(long double);
extern double round(double);
extern float roundf(float);
extern long double roundl(long double);
extern float scalbf(float, float);
extern long double scalbl(long double, long double);
extern double significand(double);
extern float significandf(float);
extern long double significandl(long double);
extern void sincos(double, double *, double *);
extern void sincosf(float, float *, float *);
extern void sincosl(long double, long double *, long double *);
extern float sinf(float);
extern float sinhf(float);
extern long double sinhl(long double);
extern long double sinl(long double);
extern float sqrtf(float);
extern long double sqrtl(long double);
extern float tanf(float);
extern float tanhf(float);
extern long double tanhl(long double);
extern long double tanl(long double);
extern double tgamma(double);
extern float tgammaf(float);
extern long double tgammal(long double);
extern double trunc(double);
extern float truncf(float);
extern long double truncl(long double);
extern float y0f(float);
extern long double y0l(long double);
extern float y1f(float);
extern long double y1l(long double);
extern float ynf(int, float);
extern long double ynl(int, long double);
extern int __fpclassifyl(long double);
extern int __fpclassifyl(long double);
extern int __signbitl(long double);
extern int __signbitl(long double);
extern int __signbitl(long double);
extern long double exp2l(long double);
extern long double exp2l(long double);
7.6 Interface Definitions for libm
The interfaces defined on the following pages are included in libm and are defined by this specification. Unless otherwise noted, these interfaces shall be included in the source standard.
Other interfaces listed in Section 7.4 shall behave as described in the referenced base document.
__fpclassifyl
Name
__fpclassifyl — test for infinity
Synopsis
int __fpclassifyl(long double arg);
Description
__fpclassifyl() has the same specification as fpclassifyl() in ISO POSIX (2003), except that the argument type for __fpclassifyl() is known to be long double.
__fpclassifyl() is not in the source standard; it is only in the binary standard.
7.7 Interfaces for libpthread
Table 7-27 defines the library name and shared object name for the libpthread library
Table 7-27 libpthread Definition
Library: | libpthread
SONAME: | libpthread.so.0

The behavior of the interfaces in this library is specified by the following specifications:
[LFS] Large File Support
[LSB] This Specification
[SUSv3] ISO POSIX (2003)

7.7.1 Realtime Threads
7.7.1.1 Interfaces for Realtime Threads
An LSB conforming implementation shall provide the architecture specific functions for Realtime Threads specified in Table 7-28, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-28 libpthread - Realtime Threads Function Interfaces
pthread_attr_getinheritsched(GLIBC_2.0) [SUSv3] | pthread_attr_getschedpolicy(GLIBC_2.0) [SUSv3] | pthread_attr_getscope(GLIBC_2.0) [SUSv3] | pthread_attr_setinheritsched(GLIBC_2.0) [SUSv3]
pthread_attr_setschedpolicy(GLIBC_2.0) [SUSv3] | pthread_attr_setscope(GLIBC_2.0) [SUSv3] | pthread_getschedparam(GLIBC_2.0) [SUSv3] | pthread_setschedparam(GLIBC_2.0) [SUSv3]

7.7.2 Advanced Realtime Threads
7.7.2.1 Interfaces for Advanced Realtime Threads
No external functions are defined for libpthread - Advanced Realtime Threads in this part of the specification. See also the generic specification.
7.7.3 Posix Threads
7.7.3.1 Interfaces for Posix Threads
An LSB conforming implementation shall provide the architecture specific functions for Posix Threads specified in Table 7-29, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-29 libpthread - Posix Threads Function Interfaces
_pthread_cleanup_pop(GLIBC_2.0) [LSB] | _pthread_cleanup_push(GLIBC_2.0) [LSB] | pthread_attr_destroy(GLIBC_2.0) [SUSv3] | pthread_attr_getdetachstate(GLIBC_2.0) [SUSv3]
pthread_attr_getguardsize(GLIBC_2.1) [SUSv3] | pthread_attr_getschedparam(GLIBC_2.0) [SUSv3] | pthread_attr_getstack(GLIBC_2.2) [SUSv3] | pthread_attr_getstackaddr(GLIBC_2.1) [SUSv3]
pthread_attr_getstacksize(GLIBC_2.1) [SUSv3] | pthread_attr_init(GLIBC_2.1) [SUSv3] | pthread_attr_setdetachstate(GLIBC_2.0) [SUSv3] | pthread_attr_setguardsize(GLIBC_2.1) [SUSv3]
pthread_attr_setschedparam(GLIBC_2.0) [SUSv3] | pthread_attr_setstack(GLIBC_2.2) [SUSv3] | pthread_attr_setstackaddr(GLIBC_2.1) [SUSv3] | pthread_attr_setstacksize(GLIBC_2.1) [SUSv3]
pthread_cancel(GLIBC_2.0) [SUSv3] | pthread_cond_broadcast(GLIBC_2.3.2) [SUSv3] | pthread_cond_destroy(GLIBC_2.3.2) [SUSv3] | pthread_cond_init(GLIBC_2.3.2) [SUSv3]
pthread_cond_signal(GLIBC_2.3.2) [SUSv3] | pthread_cond_timedwait(GLIBC_2.3.2) [SUSv3] | pthread_cond_wait(GLIBC_2.3.2) [SUSv3] | pthread_condattr_destroy(GLIBC_2.0) [SUSv3]
pthread_condattr_getpshared(GLIBC_2.2) [SUSv3] | pthread_condattr_init(GLIBC_2.0) [SUSv3] | pthread_condattr_setpshared(GLIBC_2.2) [SUSv3] | pthread_create(GLIBC_2.1) [SUSv3]
pthread_detach(GLIBC_2.0) [SUSv3] | pthread_equal(GLIBC_2.0) [SUSv3] | pthread_exit(GLIBC_2.0) [SUSv3] | pthread_getconcurrency(GLIBC_2.1) [SUSv3]
pthread_getspecific(GLIBC_2.0) [SUSv3] | pthread_join(GLIBC_2.0) [SUSv3] | pthread_key_create(GLIBC_2.0) [SUSv3] | pthread_key_delete(GLIBC_2.0) [SUSv3]
pthread_kill(GLIBC_2.0) [SUSv3] | pthread_mutex_destroy(GLIBC_2.0) [SUSv3] | pthread_mutex_init(GLIBC_2.0) [SUSv3] | pthread_mutex_lock(GLIBC_2.0) [SUSv3]
pthread_mutex_trylock(GLIBC_2.0) [SUSv3] | pthread_mutex_unlock(GLIBC_2.0) [SUSv3] | pthread_mutexattr_destroy(GLIBC_2.0) [SUSv3] | pthread_mutexattr_getpshared(GLIBC_2.2) [SUSv3]
pthread_mutexattr_gettype(GLIBC_2.1) [SUSv3] | pthread_mutexattr_init(GLIBC_2.0) [SUSv3] | pthread_mutexattr_setpshared(GLIBC_2.2) [SUSv3] | pthread_mutexattr_settype(GLIBC_2.1) [SUSv3]
pthread_once(GLIBC_2.0) [SUSv3] | pthread_rwlock_destroy(GLIBC_2.1) [SUSv3] | pthread_rwlock_init(GLIBC_2.1) [SUSv3] | pthread_rwlock_rdlock(GLIBC_2.1) [SUSv3]
pthread_rwlock_timedrdlock(GLIBC_2.2) [SUSv3] | pthread_rwlock_timedwrlock(GLIBC_2.2) [SUSv3] | pthread_rwlock_tryrdlock(GLIBC_2.1) [SUSv3] | pthread_rwlock_trywrlock(GLIBC_2.1) [SUSv3]
pthread_rwlock_unlock(GLIBC_2.1) [SUSv3] | pthread_rwlock_wrlock(GLIBC_2.1) [SUSv3] | pthread_rwlockattr_destroy(GLIBC_2.1) [SUSv3] | pthread_rwlockattr_getpshared(GLIBC_2.1) [SUSv3]
pthread_rwlockattr_init(GLIBC_2.1) [SUSv3] | pthread_rwlockattr_setpshared(GLIBC_2.1) [SUSv3] | pthread_self(GLIBC_2.0) [SUSv3] | pthread_setcancelstate(GLIBC_2.0) [SUSv3]
pthread_setcanceltype(GLIBC_2.0) [SUSv3] | pthread_setconcurrency(GLIBC_2.1) [SUSv3] | pthread_setspecific(GLIBC_2.0) [SUSv3] | pthread_sigmask(GLIBC_2.0) [SUSv3]
pthread_testcancel(GLIBC_2.0) [SUSv3] | sem_close(GLIBC_2.1.1) [SUSv3] | sem_destroy(GLIBC_2.1) [SUSv3] | sem_getvalue(GLIBC_2.1) [SUSv3]
sem_init(GLIBC_2.1) [SUSv3] | sem_open(GLIBC_2.1.1) [SUSv3] | sem_post(GLIBC_2.1) [SUSv3] | sem_timedwait(GLIBC_2.2) [SUSv3]
sem_trywait(GLIBC_2.1) [SUSv3] | sem_unlink(GLIBC_2.1.1) [SUSv3] | sem_wait(GLIBC_2.1) [SUSv3] |

7.7.4 Thread aware versions of libc interfaces
7.7.4.1 Interfaces for Thread aware versions of libc interfaces
An LSB conforming implementation shall provide the architecture specific functions for Thread aware versions of libc interfaces specified in Table 7-30, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-30 libpthread - Thread aware versions of libc interfaces Function Interfaces
lseek64(GLIBC_2.2) [LFS] | open64(GLIBC_2.2) [LFS] | pread(GLIBC_2.2) [SUSv3] | pread64(GLIBC_2.2) [LFS]
pwrite(GLIBC_2.2) [SUSv3] | pwrite64(GLIBC_2.2) [LFS] | |

7.8 Data Definitions for libpthread
This section defines global identifiers and their values that are associated with interfaces contained in libpthread. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C format. The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
7.8.1 pthread.h

extern void _pthread_cleanup_pop(struct _pthread_cleanup_buffer *, int);
extern void _pthread_cleanup_push(struct _pthread_cleanup_buffer *,
                                  void (*__routine) (void *)
                                  , void *);
extern int pthread_attr_destroy(pthread_attr_t *);
extern int pthread_attr_getdetachstate(const typedef struct {
                                       int __detachstate;
                                       int __schedpolicy;
                                       struct sched_param __schedparam;
                                       int __inheritsched;
                                       int __scope;
                                       size_t __guardsize;
                                       int __stackaddr_set;
                                       void *__stackaddr;
                                       unsigned long int __stacksize;}
                                       pthread_attr_t *, int *);
extern int pthread_attr_getinheritsched(const typedef struct {
                                        int __detachstate;
                                        int __schedpolicy;
                                        struct sched_param __schedparam;
                                        int __inheritsched;
                                        int __scope;
                                        size_t __guardsize;
                                        int __stackaddr_set;
                                        void *__stackaddr;
                                        unsigned long int __stacksize;}
                                        pthread_attr_t *, int *);
extern int pthread_attr_getschedparam(const typedef struct {
                                      int __detachstate;
                                      int __schedpolicy;
                                      struct sched_param __schedparam;
                                      int __inheritsched;
                                      int __scope;
                                      size_t __guardsize;
                                      int __stackaddr_set;
                                      void *__stackaddr;
                                      unsigned long int __stacksize;}
                                      pthread_attr_t *, struct sched_param {
                                      int sched_priority;}

                                      *);
extern int pthread_attr_getschedpolicy(const typedef struct {
                                       int __detachstate;
                                       int __schedpolicy;
                                       struct sched_param __schedparam;
                                       int __inheritsched;
                                       int __scope;
                                       size_t __guardsize;
                                       int __stackaddr_set;
                                       void *__stackaddr;
                                       unsigned long int __stacksize;}
                                       pthread_attr_t *, int *);
extern int pthread_attr_getscope(const typedef struct {
                                 int __detachstate;
                                 int __schedpolicy;
                                 struct sched_param __schedparam;
                                 int __inheritsched;
                                 int __scope;
                                 size_t __guardsize;
                                 int __stackaddr_set;
                                 void *__stackaddr;
                                 unsigned long int __stacksize;}
                                 pthread_attr_t *, int *);
extern int pthread_attr_init(pthread_attr_t *);
extern int pthread_attr_setdetachstate(pthread_attr_t *, int);
extern int pthread_attr_setinheritsched(pthread_attr_t *, int);
extern int pthread_attr_setschedparam(pthread_attr_t *, const struct sched_param {
                                      int sched_priority;}

                                      *);
extern int pthread_attr_setschedpolicy(pthread_attr_t *, int);
extern int pthread_attr_setscope(pthread_attr_t *, int);
extern int pthread_cancel(typedef unsigned long int pthread_t);
extern int pthread_cond_broadcast(pthread_cond_t *);
extern int pthread_cond_destroy(pthread_cond_t *);
extern int pthread_cond_init(pthread_cond_t *, const typedef struct {
                             int __dummy;}

                             pthread_condattr_t *);
extern int pthread_cond_signal(pthread_cond_t *);
extern int pthread_cond_timedwait(pthread_cond_t *, pthread_mutex_t *, const struct timespec {
                                  time_t tv_sec; long int tv_nsec;}

                                  *);
extern int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *);
extern int pthread_condattr_destroy(pthread_condattr_t *);
extern int pthread_condattr_init(pthread_condattr_t *);
extern int pthread_create(pthread_t *, const typedef struct {
                          int __detachstate;
                          int __schedpolicy;
                          struct sched_param __schedparam;
                          int __inheritsched;
                          int __scope;
                          size_t __guardsize;
                          int __stackaddr_set;
                          void *__stackaddr;
                          unsigned long int __stacksize;}
                          pthread_attr_t *,
                          void *(*__start_routine) (void *p1)
                          , void *);
extern int pthread_detach(typedef unsigned long int pthread_t);
extern int pthread_equal(typedef unsigned long int pthread_t,
                         typedef unsigned long int pthread_t);
extern void pthread_exit(void *);
extern int pthread_getschedparam(typedef unsigned long int pthread_t,
                                 int *, struct sched_param {
                                 int sched_priority;}

                                 *);
extern void *pthread_getspecific(typedef unsigned int pthread_key_t);
extern int pthread_join(typedef unsigned long int pthread_t, void **);
extern int pthread_key_create(pthread_key_t *, void (*destr_func) (void *)
    );
extern int pthread_key_delete(typedef unsigned int pthread_key_t);
extern int pthread_mutex_destroy(pthread_mutex_t *);
extern int pthread_mutex_init(pthread_mutex_t *, const typedef struct {
                              int __mutexkind;}

                              pthread_mutexattr_t *);
extern int pthread_mutex_lock(pthread_mutex_t *);
extern int pthread_mutex_trylock(pthread_mutex_t *);
extern int pthread_mutex_unlock(pthread_mutex_t *);
extern int pthread_mutexattr_destroy(pthread_mutexattr_t *);
extern int pthread_mutexattr_init(pthread_mutexattr_t *);
extern int pthread_once(pthread_once_t *, void (*init_routine) (void)
    );
extern int pthread_rwlock_destroy(pthread_rwlock_t *);
extern int pthread_rwlock_init(pthread_rwlock_t *, pthread_rwlockattr_t *);
extern int pthread_rwlock_rdlock(pthread_rwlock_t *);
extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
extern int pthread_rwlock_trywrlock(pthread_rwlock_t *);
extern int pthread_rwlock_unlock(pthread_rwlock_t *);
extern int pthread_rwlock_wrlock(pthread_rwlock_t *);
extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
extern int pthread_rwlockattr_getpshared(const typedef struct {
                                         int __lockkind; int __pshared;}
                                         pthread_rwlockattr_t *, int *);
extern int pthread_rwlockattr_init(pthread_rwlockattr_t *);
extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
extern typedef unsigned long int pthread_t pthread_self(void);
extern int pthread_setcancelstate(int, int *);
extern int pthread_setcanceltype(int, int *);
extern int pthread_setschedparam(typedef unsigned long int pthread_t, int, const struct sched_param {
                                 int sched_priority;}

                                 *);
extern int pthread_setspecific(typedef unsigned int pthread_key_t,
                               const void *);
extern void pthread_testcancel(void);
extern int pthread_attr_getguardsize(const typedef struct {
                                     int __detachstate;
                                     int __schedpolicy;
                                     struct sched_param __schedparam;
                                     int __inheritsched;
                                     int __scope;
                                     size_t __guardsize;
                                     int __stackaddr_set;
                                     void *__stackaddr;
                                     unsigned long int __stacksize;}
                                     pthread_attr_t *, size_t *);
extern int pthread_attr_setguardsize(pthread_attr_t *,
                                     typedef unsigned long int size_t);
extern int pthread_attr_setstackaddr(pthread_attr_t *, void *);
extern int pthread_attr_getstackaddr(const typedef struct {
                                     int __detachstate;
                                     int __schedpolicy;
                                     struct sched_param __schedparam;
                                     int __inheritsched;
                                     int __scope;
                                     size_t __guardsize;
                                     int __stackaddr_set;
                                     void *__stackaddr;
                                     unsigned long int __stacksize;}
                                     pthread_attr_t *, void **);
extern int pthread_attr_setstacksize(pthread_attr_t *,
                                     typedef unsigned long int size_t);
extern int pthread_attr_getstacksize(const typedef struct {
                                     int __detachstate;
                                     int __schedpolicy;
                                     struct sched_param __schedparam;
                                     int __inheritsched;
                                     int __scope;
                                     size_t __guardsize;
                                     int __stackaddr_set;
                                     void *__stackaddr;
                                     unsigned long int __stacksize;}
                                     pthread_attr_t *, size_t *);
extern int pthread_mutexattr_gettype(const typedef struct {
                                     int __mutexkind;}
                                     pthread_mutexattr_t *, int *);
extern int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
extern int pthread_getconcurrency(void);
extern int pthread_setconcurrency(int);
extern int pthread_attr_getstack(const typedef struct {
                                 int __detachstate;
                                 int __schedpolicy;
                                 struct sched_param __schedparam;
                                 int __inheritsched;
                                 int __scope;
                                 size_t __guardsize;
                                 int __stackaddr_set;
                                 void *__stackaddr;
                                 unsigned long int __stacksize;}
                                 pthread_attr_t *, void **, size_t *);
extern int pthread_attr_setstack(pthread_attr_t *, void *,
                                 typedef unsigned long int size_t);
extern int pthread_condattr_getpshared(const typedef struct {
                                       int __dummy;}
                                       pthread_condattr_t *, int *);
extern int pthread_condattr_setpshared(pthread_condattr_t *, int);
extern int pthread_mutexattr_getpshared(const typedef struct {
                                        int __mutexkind;}
                                        pthread_mutexattr_t *, int *);
extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
extern int pthread_rwlock_timedrdlock(pthread_rwlock_t *, const struct timespec {
                                      time_t tv_sec; long int tv_nsec;}

                                      *);
extern int pthread_rwlock_timedwrlock(pthread_rwlock_t *, const struct timespec {
                                      time_t tv_sec; long int tv_nsec;}

                                      *);
extern int __register_atfork(void (*prepare) (void)
                             , void (*parent) (void)
                             , void (*child) (void)
                             , void *);
extern int pthread_setschedprio(typedef unsigned long int pthread_t, int);
7.8.2 semaphore.h

extern int sem_close(sem_t *);
extern int sem_destroy(sem_t *);
extern int sem_getvalue(sem_t *, int *);
extern int sem_init(sem_t *, int, unsigned int);
extern sem_t *sem_open(const char *, int, ...);
extern int sem_post(sem_t *);
extern int sem_trywait(sem_t *);
extern int sem_unlink(const char *);
extern int sem_wait(sem_t *);
extern int sem_timedwait(sem_t *, const struct timespec *);
7.9 Interfaces for libgcc_s
Table 7-31 defines the library name and shared object name for the libgcc_s library
Table 7-31 libgcc_s Definition
Library: | libgcc_s
SONAME: | libgcc_s.so.1

The behavior of the interfaces in this library is specified by the following specifications:
[LSB] This Specification

7.9.1 Unwind Library
7.9.1.1 Interfaces for Unwind Library
An LSB conforming implementation shall provide the architecture specific functions for Unwind Library specified in Table 7-32, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-32 libgcc_s - Unwind Library Function Interfaces
_Unwind_Backtrace(GCC_3.3) [LSB] | _Unwind_DeleteException(GCC_3.0) [LSB] | _Unwind_FindEnclosingFunction(GCC_3.3) [LSB] | _Unwind_Find_FDE(GCC_3.0) [LSB]
_Unwind_ForcedUnwind(GCC_3.0) [LSB] | _Unwind_GetCFA(GCC_3.3) [LSB] | _Unwind_GetDataRelBase(GCC_3.0) [LSB] | _Unwind_GetGR(GCC_3.0) [LSB]
_Unwind_GetIP(GCC_3.0) [LSB] | _Unwind_GetLanguageSpecificData(GCC_3.0) [LSB] | _Unwind_GetRegionStart(GCC_3.0) [LSB] | _Unwind_GetTextRelBase(GCC_3.0) [LSB]
_Unwind_RaiseException(GCC_3.0) [LSB] | _Unwind_Resume(GCC_3.0) [LSB] | _Unwind_Resume_or_Rethrow(GCC_3.3) [LSB] | _Unwind_SetGR(GCC_3.0) [LSB]
_Unwind_SetIP(GCC_3.0) [LSB] | | |

7.10 Data Definitions for libgcc_s
This section defines global identifiers and their values that are associated with interfaces contained in libgcc_s. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C format. The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
7.10.1 unwind.h

extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern fde *_Unwind_Find_FDE(void *, struct dwarf_eh_base *);
extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(struct _Unwind_Context
                                                   *);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern fde *_Unwind_Find_FDE(void *, struct dwarf_eh_base *);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(struct _Unwind_Context
                                                   *);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(struct _Unwind_Context
                                                   *);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern fde *_Unwind_Find_FDE(void *, struct dwarf_eh_base *);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(struct _Unwind_Context
                                                   *);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern fde *_Unwind_Find_FDE(void *, struct dwarf_eh_base *);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(struct _Unwind_Context
                                                   *);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern fde *_Unwind_Find_FDE(void *, struct dwarf_eh_base *);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(void);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern void _Unwind_DeleteException(struct _Unwind_Exception *);
extern fde *_Unwind_Find_FDE(void *, struct dwarf_eh_base *);
extern _Unwind_Ptr _Unwind_ForcedUnwind(struct _Unwind_Exception *,
                                        _Unwind_Stop_Fn, void *);
extern _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *);
extern _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int);
extern _Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetLanguageSpecificData(void);
extern _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *);
extern _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception
                                                  *);
extern void _Unwind_Resume(struct _Unwind_Exception *);
extern void _Unwind_SetGR(struct _Unwind_Context *, int, u_int64_t);
extern void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Ptr);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_GetCFA(struct _Unwind_Context *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct
                                                     _Unwind_Exception *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern void *_Unwind_FindEnclosingFunction(void *);
extern _Unwind_Word _Unwind_GetBSP(struct _Unwind_Context *);
7.11 Interface Definitions for libgcc_s
The interfaces defined on the following pages are included in libgcc_s and are defined by this specification. Unless otherwise noted, these interfaces shall be included in the source standard.
Other interfaces listed in Section 7.9 shall behave as described in the referenced base document.
_Unwind_DeleteException
Name
_Unwind_DeleteException — private C++ error handling method
Synopsis
void _Unwind_DeleteException(struct _Unwind_Exception * object);
Description
_Unwind_DeleteException() deletes the given exception object. If a given runtime resumes normal execution after catching a foreign exception, it will not know how to delete that exception. Such an exception shall be deleted by calling _Unwind_DeleteException(). This is a convenience function that calls the function pointed to by the exception_cleanup field of the exception header.
_Unwind_Find_FDE
Name
_Unwind_Find_FDE — private C++ error handling method
Synopsis
fde * _Unwind_Find_FDE(void * pc, struct dwarf_eh_bases * bases);
Description
_Unwind_Find_FDE() looks for the object containing pc, then inserts into bases.
_Unwind_ForcedUnwind
Name
_Unwind_ForcedUnwind — private C++ error handling method
Synopsis
_Unwind_Reason_Code _Unwind_ForcedUnwind(struct _Unwind_Exception * object, _Unwind_Stop_Fn stop, void * stop_parameter);
Description
_Unwind_ForcedUnwind() raises an exception for forced unwinding, passing along the given exception object, which should have its exception_class and exception_cleanup fields set. The exception object has been allocated by the language-specific runtime, and has a language-specific format, except that it shall contain an _Unwind_Exception struct.
Forced unwinding is a single-phase process. stop and stop_parameter control the termination of the unwind process instead of the usual personality routine query. stop is called for each unwind frame, with the parameteres described for the usual personality routine below, plus an additional stop_parameter.
Return Value
When stop identifies the destination frame, it transfers control to the user code as appropriate without returning, normally after calling _Unwind_DeleteException(). If not, then it should return an _Unwind_Reason_Code value.
If stop returns any reason code other than _URC_NO_REASON, then the stack state is indeterminate from the point of view of the caller of _Unwind_ForcedUnwind(). Rather than attempt to return, therefore, the unwind library should use the exception_cleanup entry in the exception, and then call abort().
_URC_NO_REASON
 	This is not the destination from. The unwind runtime will call frame's personality routine with the _UA_FORCE_UNWIND and _UA_CLEANUP_PHASE flag set in actions, and then unwind to the next frame and call the stop() function again.
_URC_END_OF_STACK
 	In order to allow _Unwind_ForcedUnwind() to perform special processing when it reaches the end of the stack, the unwind runtime will call it after the last frame is rejected, with a NULL stack pointer in the context, and the stop() function shall catch this condition. It may return this code if it cannot handle end-of-stack.
_URC_FATAL_PHASE2_ERROR
 	The stop() function may return this code for other fatal conditions like stack corruption.
_Unwind_GetDataRelBase
Name
_Unwind_GetDataRelBase — private IA64 C++ error handling method
Synopsis
_Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context * context);
Description
_Unwind_GetDataRelBase() returns the global pointer in register one for context.
_Unwind_GetGR
Name
_Unwind_GetGR — private C++ error handling method
Synopsis
_Unwind_Word _Unwind_GetGR(struct _Unwind_Context * context, int index);
Description
_Unwind_GetGR() returns data at index found in context. The register is identified by its index: 0 to 31 are for the fixed registers, and 32 to 127 are for the stacked registers.
During the two phases of unwinding, only GR1 has a guaranteed value, which is the global pointer of the frame referenced by the unwind context. If the register has its NAT bit set, the behavior is unspecified.
_Unwind_GetIP
Name
_Unwind_GetIP — private C++ error handling method
Synopsis
_Unwind_Ptr _Unwind_GetIP(struct _Unwind_Context * context);
Description
_Unwind_GetIP() returns the instruction pointer value for the routine identified by the unwind context.
_Unwind_GetLanguageSpecificData
Name
_Unwind_GetLanguageSpecificData — private C++ error handling method
Synopsis
_Unwind_Ptr _Unwind_GetLanguageSpecificData(struct _Unwind_Context * context, uint value);
Description
_Unwind_GetLanguageSpecificData() returns the address of the language specific data area for the current stack frame.
_Unwind_GetRegionStart
Name
_Unwind_GetRegionStart — private C++ error handling method
Synopsis
_Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context * context);
Description
_Unwind_GetRegionStart() routine returns the address (i.e., 0) of the beginning of the procedure or code fragment described by the current unwind descriptor block.
_Unwind_GetTextRelBase
Name
_Unwind_GetTextRelBase — private IA64 C++ error handling method
Synopsis
_Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context * context);
Description
_Unwind_GetTextRelBase() calls the abort method, then returns.
_Unwind_RaiseException
Name
_Unwind_RaiseException — private C++ error handling method
Synopsis
_Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception * object);
Description
_Unwind_RaiseException() raises an exception, passing along the given exception object, which should have its exception_class and exception_cleanup fields set. The exception object has been allocated by the language-specific runtime, and has a language-specific format, exception that it shall contain an _Unwind_Exception.
Return Value
_Unwind_RaiseException() does not return unless an error condition is found. If an error condition occurs, an _Unwind_Reason_Code is returnd:
_URC_END_OF_STACK
 	The unwinder encountered the end of the stack during phase one without finding a handler. The unwind runtime will not have modified the stack. The C++ runtime will normally call uncaught_exception() in this case.
_URC_FATAL_PHASE1_ERROR
 	The unwinder encountered an unexpected error during phase one, because of something like stack corruption. The unwind runtime will not have modified the stack. The C++ runtime will normally call terminate() in this case.
_URC_FATAL_PHASE2_ERROR
 	The unwinder encountered an unexpected error during phase two. This is usually a throw, which will call terminate().
_Unwind_Resume
Name
_Unwind_Resume — private C++ error handling method
Synopsis
void _Unwind_Resume(struct _Unwind_Exception * object);
Description
_Unwind_Resume() resumes propagation of an existing exception object. A call to this routine is inserted as the end of a landing pad that performs cleanup, but does not resume normal execution. It causes unwinding to proceed further.
_Unwind_SetGR
Name
_Unwind_SetGR — private C++ error handling method
Synopsis
void _Unwind_SetGR(struct _Unwind_Context * context, int index, uint value);
Description
_Unwind_SetGR() sets the value of the register indexed for the routine identified by the unwind context.
_Unwind_SetIP
Name
_Unwind_SetIP — private C++ error handling method
Synopsis
void _Unwind_SetIP(struct _Unwind_Context * context, uint value);
Description
_Unwind_SetIP() sets the value of the instruction pointer for the routine identified by the unwind context
7.12 Interfaces for libdl
Table 7-33 defines the library name and shared object name for the libdl library
Table 7-33 libdl Definition
Library: | libdl
SONAME: | libdl.so.2

The behavior of the interfaces in this library is specified by the following specifications:
[LSB] This Specification
[SUSv3] ISO POSIX (2003)

7.12.1 Dynamic Loader
7.12.1.1 Interfaces for Dynamic Loader
An LSB conforming implementation shall provide the architecture specific functions for Dynamic Loader specified in Table 7-34, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-34 libdl - Dynamic Loader Function Interfaces
dladdr(GLIBC_2.0) [LSB] | dlclose(GLIBC_2.0) [SUSv3] | dlerror(GLIBC_2.0) [SUSv3] | dlopen(GLIBC_2.1) [LSB]
dlsym(GLIBC_2.0) [LSB] | | |

7.13 Data Definitions for libdl
This section defines global identifiers and their values that are associated with interfaces contained in libdl. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C format. The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
7.13.1 dlfcn.h

extern int dladdr(const void *, Dl_info *);
extern int dlclose(void *);
extern char *dlerror(void);
extern void *dlopen(char *, int);
extern void *dlsym(void *, char *);
7.14 Interfaces for libcrypt
Table 7-35 defines the library name and shared object name for the libcrypt library
Table 7-35 libcrypt Definition
Library: | libcrypt
SONAME: | libcrypt.so.1

The behavior of the interfaces in this library is specified by the following specifications:
[SUSv3] ISO POSIX (2003)

7.14.1 Encryption
7.14.1.1 Interfaces for Encryption
An LSB conforming implementation shall provide the architecture specific functions for Encryption specified in Table 7-36, with the full mandatory functionality as described in the referenced underlying specification.
Table 7-36 libcrypt - Encryption Function Interfaces
crypt(GLIBC_2.0) [SUSv3] | encrypt(GLIBC_2.0) [SUSv3] | setkey(GLIBC_2.0) [SUSv3] |

III Utility Libraries

8 Libraries
An LSB-conforming implementation shall also support some utility libraries which are built on top of the interfaces provided by the base libraries. These libraries implement common functionality, and hide additional system dependent information such as file formats and device names.
8.1 Interfaces for libz
Table 8-1 defines the library name and shared object name for the libz library
Table 8-1 libz Definition
Library: | libz
SONAME: | libz.so.1

8.1.1 Compression Library
8.1.1.1 Interfaces for Compression Library
No external functions are defined for libz - Compression Library in this part of the specification. See also the generic specification.
8.2 Data Definitions for libz
This section defines global identifiers and their values that are associated with interfaces contained in libz. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C . The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
8.2.1 zlib.h

extern int gzread(gzFile, voidp, unsigned int);
extern int gzclose(gzFile);
extern gzFile gzopen(const char *, const char *);
extern gzFile gzdopen(int, const char *);
extern int gzwrite(gzFile, voidpc, unsigned int);
extern int gzflush(gzFile, int);
extern const char *gzerror(gzFile, int *);
extern uLong adler32(uLong, const Bytef *, uInt);
extern int compress(Bytef *, uLongf *, const Bytef *, uLong);
extern int compress2(Bytef *, uLongf *, const Bytef *, uLong, int);
extern uLong crc32(uLong, const Bytef *, uInt);
extern int deflate(z_streamp, int);
extern int deflateCopy(z_streamp, z_streamp);
extern int deflateEnd(z_streamp);
extern int deflateInit2_(z_streamp, int, int, int, int, int, const char *,
                         int);
extern int deflateInit_(z_streamp, int, const char *, int);
extern int deflateParams(z_streamp, int, int);
extern int deflateReset(z_streamp);
extern int deflateSetDictionary(z_streamp, const Bytef *, uInt);
extern const uLongf *get_crc_table(void);
extern int gzeof(gzFile);
extern int gzgetc(gzFile);
extern char *gzgets(gzFile, char *, int);
extern int gzprintf(gzFile, const char *, ...);
extern int gzputc(gzFile, int);
extern int gzputs(gzFile, const char *);
extern int gzrewind(gzFile);
extern z_off_t gzseek(gzFile, z_off_t, int);
extern int gzsetparams(gzFile, int, int);
extern z_off_t gztell(gzFile);
extern int inflate(z_streamp, int);
extern int inflateEnd(z_streamp);
extern int inflateInit2_(z_streamp, int, const char *, int);
extern int inflateInit_(z_streamp, const char *, int);
extern int inflateReset(z_streamp);
extern int inflateSetDictionary(z_streamp, const Bytef *, uInt);
extern int inflateSync(z_streamp);
extern int inflateSyncPoint(z_streamp);
extern int uncompress(Bytef *, uLongf *, const Bytef *, uLong);
extern const char *zError(int);
extern const char *zlibVersion(void);
extern uLong deflateBound(z_streamp, uLong);
extern uLong compressBound(uLong);
8.3 Interfaces for libncurses
Table 8-2 defines the library name and shared object name for the libncurses library
Table 8-2 libncurses Definition
Library: | libncurses
SONAME: | libncurses.so.5

8.3.1 Curses
8.3.1.1 Interfaces for Curses
No external functions are defined for libncurses - Curses in this part of the specification. See also the generic specification.
8.4 Data Definitions for libncurses
This section defines global identifiers and their values that are associated with interfaces contained in libncurses. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.
This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.
This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C . The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.
8.4.1 curses.h

extern int addch(const chtype);
extern int addchnstr(const chtype *, int);
extern int addchstr(const chtype *);
extern int addnstr(const char *, int);
extern int addstr(const char *);
extern int attroff(int);
extern int attron(int);
extern int attrset(int);
extern int attr_get(attr_t *, short *, void *);
extern int attr_off(attr_t, void *);
extern int attr_on(attr_t, void *);
extern int attr_set(attr_t, short, void *);
extern int baudrate(void);
extern int beep(void);
extern int bkgd(chtype);
extern void bkgdset(chtype);
extern int border(chtype, chtype, chtype, chtype, chtype, chtype, chtype,
                  chtype);
extern int box(WINDOW *, chtype, chtype);
extern bool can_change_color(void);
extern int cbreak(void);
extern int chgat(int, attr_t, short, const void *);
extern int clear(void);
extern int clearok(WINDOW *, bool);
extern int clrtobot(void);
extern int clrtoeol(void);
extern int color_content(short, short *, short *, short *);
extern int color_set(short, void *);
extern int copywin(const WINDOW *, WINDOW *, int, int, int, int, int, int,
                   int);
extern int curs_set(int);
extern int def_prog_mode(void);
extern int def_shell_mode(void);
extern int delay_output(int);
extern int delch(void);
extern void delscreen(SCREEN *);
extern int delwin(WINDOW *);
extern int deleteln(void);
extern WINDOW *derwin(WINDOW *, int, int, int, int);
extern int doupdate(void);
extern WINDOW *dupwin(WINDOW *);
extern int echo(void);
extern int echochar(const chtype);
extern int erase(void);
extern int endwin(void);
extern char erasechar(void);
extern void filter(void);
extern int flash(void);
extern int flushinp(void);
extern chtype getbkgd(WINDOW *);
extern int getch(void);
extern int getnstr(char *, int);
extern int getstr(char *);
extern WINDOW *getwin(FILE *);
extern int halfdelay(int);
extern bool has_colors(void);
extern bool has_ic(void);
extern bool has_il(void);
extern int hline(chtype, int);
extern void idcok(WINDOW *, bool);
extern int idlok(WINDOW *, bool);
extern void immedok(WINDOW *, bool);
extern chtype inch(void);
extern int inchnstr(chtype *, int);
extern int inchstr(chtype *);
extern WINDOW *initscr(void);
extern int init_color(short, short, short, short);
extern int init_pair(short, short, short);
extern int innstr(char *, int);
extern int insch(chtype);
extern int insdelln(int);
extern int insertln(void);
extern int insnstr(const char *, int);
extern int insstr(const char *);
extern int instr(char *);
extern int intrflush(WINDOW *, bool);
extern bool isendwin(void);
extern bool is_linetouched(WINDOW *, int);
extern bool is_wintouched(WINDOW *);
extern const char *keyname(int);
extern int keypad(WINDOW *, bool);
extern char killchar(void);
extern int leaveok(WINDOW *, bool);
extern char *longname(void);
extern int meta(WINDOW *, bool);
extern int move(int, int);
extern int mvaddch(int, int, const chtype);
extern int mvaddchnstr(int, int, const chtype *, int);
extern int mvaddchstr(int, int, const chtype *);
extern int mvaddnstr(int, int, const char *, int);
extern int mvaddstr(int, int, const char *);
extern int mvchgat(int, int, int, attr_t, short, const void *);
extern int mvcur(int, int, int, int);
extern int mvdelch(int, int);
extern int mvderwin(WINDOW *, int, int);
extern int mvgetch(int, int);
extern int mvgetnstr(int, int, char *, int);
extern int mvgetstr(int, int, char *);
extern int mvhline(int, int, chtype, int);
extern chtype mvinch(int, int);
extern int mvinchnstr(int, int, chtype *, int);
extern int mvinchstr(int, int, chtype *);
extern int mvinnstr(int, int, char *, int);
extern int mvinsch(int, int, chtype);
extern int mvinsnstr(int, int, const char *, int);
extern int mvinsstr(int, int, const char *);
extern int mvinstr(int, int, char *);
extern int mvprintw(int, int, char *, ...);
extern int mvscanw(int, int, const char *, ...);
extern int mvvline(int, int, chtype, int);
extern int mvwaddch(WINDOW *, int, int, const chtype);
extern int mvwaddchnstr(WINDOW *, int, int, const chtype *, int);
extern int mvwaddchstr(WINDOW *, int, int, const chtype *);
extern int mvwaddnstr(WINDOW *, int, int, const char *, int);
extern int mvwaddstr(WINDOW *, int, int, const char *);
extern int mvwchgat(WINDOW *, int, int, int, attr_t, short, const void *);
extern int mvwdelch(WINDOW *, int, int);
extern int mvwgetch(WINDOW *, int, int);
extern int mvwgetnstr(WINDOW *, int, int, char *, int);
extern int mvwgetstr(WINDOW *, int, int, char *);
extern int mvwhline(WINDOW *, int, int, chtype, int);
extern int mvwin(WINDOW *, int, int);
extern chtype mvwinch(WINDOW *, int, int);
extern int mvwinchnstr(WINDOW *, int, int, chtype *, int);
extern int mvwinchstr(WINDOW *, int, int, chtype *);
extern int mvwinnstr(WINDOW *, int, int, char *, int);
extern int mvwinsch(WINDOW *, int, int, chtype);
extern int mvwinsnstr(WINDOW *, int, int, const char *, int);
extern int mvwinsstr(WINDOW *, int, int, const char *);
extern int mvwinstr(WINDOW *, int, int, char *);
extern int mvwprintw(WINDOW *, int, int, char *, ...);
extern int mvwscanw(WINDOW *, int, int, const char *, ...);
extern int mvwvline(WINDOW *, int, int, chtype, int);
extern int napms(int);
extern WINDOW *newpad(int, int);
extern SCREEN *newterm(const char *, FILE *, FILE *);
extern WINDOW *newwin(int, int, int, int);
extern int nl(void);
extern int nocbreak(void);
extern int nodelay(WINDOW *, bool);
extern int noecho(void);
extern int nonl(void);
extern void noqiflush(void);
extern int noraw(void);
extern int notimeout(WINDOW *, bool);
extern int overlay(const WINDOW *, WINDOW *);
extern int overwrite(const WINDOW *, WINDOW *);
extern int pair_content(short, short *, short *);
extern int pechochar(WINDOW *, chtype);
extern int pnoutrefresh(WINDOW *, int, int, int, int, int, int);
extern int prefresh(WINDOW *, int, int, int, int, int, int);
extern int printw(char *, ...);
extern int putwin(WINDOW *, FILE *);
extern void qiflush(void);
extern int raw(void);
extern int redrawwin(WINDOW *);
extern int refresh(void);
extern int resetty(void);
extern int reset_prog_mode(void);
extern int reset_shell_mode(void);
extern int ripoffline(int, int (*init) (WINDOW *, int)
    );
extern int savetty(void);
extern int scanw(const char *, ...);
extern int scr_dump(const char *);
extern int scr_init(const char *);
extern int scrl(int);
extern int scroll(WINDOW *);
extern int scrollok(WINDOW *, typedef unsigned char bool);
extern int scr_restore(const char *);
extern int scr_set(const char *);
extern int setscrreg(int, int);
extern SCREEN *set_term(SCREEN *);
extern int slk_attroff(const typedef unsigned long int chtype);
extern int slk_attron(const typedef unsigned long int chtype);
extern int slk_attrset(const typedef unsigned long int chtype);
extern int slk_attr_set(const typedef chtype attr_t, short, void *);
extern int slk_clear(void);
extern int slk_color(short);
extern int slk_init(int);
extern char *slk_label(int);
extern int slk_noutrefresh(void);
extern int slk_refresh(void);
extern int slk_restore(void);
extern int slk_set(int, const char *, int);
extern int slk_touch(void);
extern int standout(void);
extern int standend(void);
extern int start_color(void);
extern WINDOW *subpad(WINDOW *, int, int, int, int);
extern WINDOW *subwin(WINDOW *, int, int, int, int);
extern int syncok(WINDOW *, typedef unsigned char bool);
extern typedef unsigned long int chtype termattrs(void);
extern char *termname(void);
extern void timeout(int);
extern int typeahead(int);
extern int ungetch(int);
extern int untouchwin(WINDOW *);
extern void use_env(typedef unsigned char bool);
extern int vidattr(typedef unsigned long int chtype);
extern int vidputs(typedef unsigned long int chtype,
                   int (*vidputs_int) (int)
    );
extern int vline(typedef unsigned long int chtype, int);
extern int vwprintw(WINDOW *, char *, typedef void *va_list);
extern int vw_printw(WINDOW *, const char *, typedef void *va_list);
extern int vwscanw(WINDOW *, const char *, typedef void *va_list);
extern int vw_scanw(WINDOW *, const char *, typedef void *va_list);
extern int waddch(WINDOW *, const typedef unsigned long int chtype);
extern int waddchnstr(WINDOW *, const typedef unsigned long int chtype *,
                      int);
extern int waddchstr(WINDOW *, const typedef unsigned long int chtype *);
extern int waddnstr(WINDOW *, const char *, int);
extern int waddstr(WINDOW *, const char *);
extern int wattron(WINDOW *, int);
extern int wattroff(WINDOW *, int);
extern int wattrset(WINDOW *, int);
extern int wattr_get(WINDOW *, attr_t *, short *, void *);
extern int wattr_on(WINDOW *, typedef chtype attr_t, void *);
extern int wattr_off(WINDOW *, typedef chtype attr_t, void *);
extern int wattr_set(WINDOW *, typedef chtype attr_t, short, void *);
extern int wbkgd(WINDOW *, typedef unsigned long int chtype);
extern void wbkgdset(WINDOW *, typedef unsigned long int chtype);
extern int wborder(WINDOW *, typedef unsigned long int chtype,
                   typedef unsigned long int chtype,
                   typedef unsigned long int chtype,
                   typedef unsigned long int chtype,
                   typedef unsigned long int chtype,
                   typedef unsigned long int chtype,
                   typedef unsigned long int chtype,
                   typedef unsigned long int chtype);
extern int wchgat(WINDOW *, int, typedef chtype attr_t, short,
                  const void *);
extern int wclear(WINDOW *);
extern int wclrtobot(WINDOW *);
extern int wclrtoeol(WINDOW *);
extern int wcolor_set(WINDOW *, short, void *);
extern void wcursyncup(WINDOW *);
extern int wdelch(WINDOW *);
extern int wdeleteln(WINDOW *);
extern int wechochar(WINDOW *, const typedef unsigned long int chtype);
extern int werase(WINDOW *);
extern int wgetch(WINDOW *);
extern int wgetnstr(WINDOW *, char *, int);
extern int wgetstr(WINDOW *, char *);
extern int whline(WINDOW *, typedef unsigned long int chtype, int);
extern typedef unsigned long int chtype winch(WINDOW *);
extern int winchnstr(WINDOW *, chtype *, int);
extern int winchstr(WINDOW *, chtype *);
extern int winnstr(WINDOW *, char *, int);
extern int winsch(WINDOW *, typedef unsigned long int chtype);
extern int winsdelln(WINDOW *, int);
extern int winsertln(WINDOW *);
extern int winsnstr(WINDOW *, const char *, int);
extern int winsstr(WINDOW *, const char *);
extern int winstr(WINDOW *, char *);
extern int wmove(WINDOW *, int, int);
extern int wnoutrefresh(WINDOW *);
extern int wprintw(WINDOW *, char *, ...);
extern int wredrawln(WINDOW *, int, int);
extern int wrefresh(WINDOW *);
extern int wscanw(WINDOW *, const char *, ...);
extern int wscrl(WINDOW *, int);
extern int wsetscrreg(WINDOW *, int, int);
extern int wstandout(WINDOW *);
extern int wstandend(WINDOW *);
extern void wsyncdown(WINDOW *);
extern void wsyncup(WINDOW *);
extern void wtimeout(WINDOW *, int);
extern int wtouchln(WINDOW *, int, int, int);
extern int wvline(WINDOW *, typedef unsigned long int chtype, int);
extern char *unctrl(typedef unsigned long int chtype);
extern int COLORS(void);
extern int COLOR_PAIRS(void);
extern chtype acs_map(void);
extern WINDOW *curscr(void);
extern WINDOW *stdscr(void);
extern int COLS(void);
extern int LINES(void);
extern int touchline(WINDOW *, int, int);
extern int touchwin(WINDOW *);
8.4.2 term.h

extern int putp(const char *);
extern int tigetflag(const char *);
extern int tigetnum(const char *);
extern char *tigetstr(const char *);
extern char *tparm(const char *, ...);
extern TERMINAL *set_curterm(TERMINAL *);
extern int del_curterm(TERMINAL *);
extern int restartterm(char *, int, int *);
extern int setupterm(char *, int, int *);
extern char *tgetstr(char *, char **);
extern char *tgoto(const char *, int, int);
extern int tgetent(char *, const char *);
extern int tgetflag(char *);
extern int tgetnum(char *);
extern int tputs(const char *, int, int (*putcproc) (int)
    );
extern TERMINAL *cur_term(void);
8.5 Interfaces for libutil
Table 8-3 defines the library name and shared object name for the libutil library
Table 8-3 libutil Definition
Library: | libutil
SONAME: | libutil.so.1

The behavior of the interfaces in this library is specified by the following specifications:
[LSB] This Specification

8.5.1 Utility Functions
8.5.1.1 Interfaces for Utility Functions
An LSB conforming implementation shall provide the architecture specific functions for Utility Functions specified in Table 8-4, with the full mandatory functionality as described in the referenced underlying specification.
Table 8-4 libutil - Utility Functions Function Interfaces
forkpty(GLIBC_2.0) [LSB] | login(GLIBC_2.0) [LSB] | login_tty(GLIBC_2.0) [LSB] | logout(GLIBC_2.0) [LSB]
logwtmp(GLIBC_2.0) [LSB] | openpty(GLIBC_2.0) [LSB] | |

Annex A GNU Free Documentation License (Informative)
This specification is published under the terms of the GNU Free Documentation License, Version 1.1, March 2000
Copyright (C) 2000 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
A.1 PREAMBLE
The purpose of this License is to make a manual, textbook, or other written document "free" in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.
This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.
We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.
A.2 APPLICABILITY AND DEFINITIONS
This License applies to any manual or other work that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. The "Document", below, refers to any such manual or work. Any member of the public is a licensee, and is addressed as "you".
A "Modified Version" of the Document means any work containing the Document or a portion of it, either copied verbatim, or with modifications and/or translated into another language.
A "Secondary Section" is a named appendix or a front-matter section of the Document that deals exclusively with the relationship of the publishers or authors of the Document to the Document's overall subject (or to related matters) and contains nothing that could fall directly within that overall subject. (For example, if the Document is in part a textbook of mathematics, a Secondary Section may not explain any mathematics.) The relationship could be a matter of historical connection with the subject or with related matters, or of legal, commercial, philosophical, ethical or political position regarding them.
The "Invariant Sections" are certain Secondary Sections whose titles are designated, as being those of Invariant Sections, in the notice that says that the Document is released under this License.
The "Cover Texts" are certain short passages of text that are listed, as Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document is released under this License.
A "Transparent" copy of the Document means a machine-readable copy, represented in a format whose specification is available to the general public, whose contents can be viewed and edited directly and straightforwardly with generic text editors or (for images composed of pixels) generic paint programs or (for drawings) some widely available drawing editor, and that is suitable for input to text formatters or for automatic translation to a variety of formats suitable for input to text formatters. A copy made in an otherwise Transparent file format whose markup has been designed to thwart or discourage subsequent modification by readers is not Transparent. A copy that is not "Transparent" is called "Opaque".
Examples of suitable formats for Transparent copies include plain ASCII without markup, Texinfo input format, LaTeX input format, SGML or XML using a publicly available DTD, and standard-conforming simple HTML designed for human modification. Opaque formats include PostScript, PDF, proprietary formats that can be read and edited only by proprietary word processors, SGML or XML for which the DTD and/or processing tools are not generally available, and the machine-generated HTML produced by some word processors for output purposes only.
The "Title Page" means, for a printed book, the title page itself, plus such following pages as are needed to hold, legibly, the material this License requires to appear in the title page. For works in formats which do not have any title page as such, "Title Page" means the text near the most prominent appearance of the work's title, preceding the beginning of the body of the text.
A.3 VERBATIM COPYING
You may copy and distribute the Document in any medium, either commercially or noncommercially, provided that this License, the copyright notices, and the license notice saying this License applies to the Document are reproduced in all copies, and that you add no other conditions whatsoever to those of this License. You may not use technical measures to obstruct or control the reading or further copying of the copies you make or distribute. However, you may accept compensation in exchange for copies. If you distribute a large enough number of copies you must also follow the conditions in section 3.
You may also lend copies, under the same conditions stated above, and you may publicly display copies.
A.4 COPYING IN QUANTITY
If you publish printed copies of the Document numbering more than 100, and the Document's license notice requires Cover Texts, you must enclose the copies in covers that carry, clearly and legibly, all these Cover Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on the back cover. Both covers must also clearly and legibly identify you as the publisher of these copies. The front cover must present the full title with all words of the title equally prominent and visible. You may add other material on the covers in addition. Copying with changes limited to the covers, as long as they preserve the title of the Document and satisfy these conditions, can be treated as verbatim copying in other respects.
If the required texts for either cover are too voluminous to fit legibly, you should put the first ones listed (as many as fit reasonably) on the actual cover, and continue the rest onto adjacent pages.
If you publish or distribute Opaque copies of the Document numbering more than 100, you must either include a machine-readable Transparent copy along with each Opaque copy, or state in or with each Opaque copy a publicly-accessible computer-network location containing a complete Transparent copy of the Document, free of added material, which the general network-using public has access to download anonymously at no charge using public-standard network protocols. If you use the latter option, you must take reasonably prudent steps, when you begin distribution of Opaque copies in quantity, to ensure that this Transparent copy will remain thus accessible at the stated location until at least one year after the last time you distribute an Opaque copy (directly or through your agents or retailers) of that edition to the public.
It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document.
A.5 MODIFICATIONS
You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version:
	A.	Use in the Title Page  (and on the covers, if any) a title distinct from that of the  Document, and from those of previous versions (which should, if  there were any, be listed in the History section of the  Document). You may use the same title as a previous version if  the original publisher of that version gives permission.
	B.	List on the Title Page,  as authors, one or more persons or entities responsible for  authorship of the modifications in the Modified Version,  together with at least five of the principal authors of the  Document (all of its principal authors, if it has less than  five).
	C.	State on the Title page  the name of the publisher of the Modified Version, as the  publisher.
	D.	Preserve all the  copyright notices of the Document.
	E.	Add an appropriate  copyright notice for your modifications adjacent to the other  copyright notices.
	F.	Include, immediately  after the copyright notices, a license notice giving the public  permission to use the Modified Version under the terms of this  License, in the form shown in the Addendum below.
	G.	Preserve in that license  notice the full lists of Invariant Sections and required Cover  Texts given in the Document's license notice.
	H.	Include an unaltered  copy of this License.
	I.	Preserve the section  entitled "History", and its title, and add to it an item stating  at least the title, year, new authors, and publisher of the  Modified Version as given on the Title Page. If there is no  section entitled "History" in the Document, create one stating  the title, year, authors, and publisher of the Document as given  on its Title Page, then add an item describing the Modified  Version as stated in the previous sentence.
	J.	Preserve the network  location, if any, given in the Document for public access to a  Transparent copy of the Document, and likewise the network  locations given in the Document for previous versions it was  based on. These may be placed in the "History" section. You  may omit a network location for a work that was published at  least four years before the Document itself, or if the original  publisher of the version it refers to gives permission.
	K.	In any section entitled  "Acknowledgements" or "Dedications", preserve the section's  title, and preserve in the section all the substance and tone of  each of the contributor acknowledgements and/or dedications  given therein.
	L.	Preserve all the  Invariant Sections of the Document, unaltered in their text and  in their titles. Section numbers or the equivalent are not  considered part of the section titles.
	M.	Delete any section  entitled "Endorsements". Such a section may not be included in  the Modified Version.
	N.	Do not retitle any  existing section as "Endorsements" or to conflict in title with  any Invariant Section.
If the Modified Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections in the Modified Version's license notice. These titles must be distinct from any other section titles.
You may add a section entitled "Endorsements", provided it contains nothing but endorsements of your Modified Version by various parties--for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard.
You may add a passage of up to five words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous publisher that added the old one.
The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply endorsement of any Modified Version.
A.6 COMBINING DOCUMENTS
You may combine the Document with other documents released under this License, under the terms defined in section 4 above for modified versions, provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodified, and list them all as Invariant Sections of your combined work in its license notice.
The combined work need only contain one copy of this License, and multiple identical Invariant Sections may be replaced with a single copy. If there are multiple Invariant Sections with the same name but different contents, make the title of each such section unique by adding at the end of it, in parentheses, the name of the original author or publisher of that section if known, or else a unique number. Make the same adjustment to the section titles in the list of Invariant Sections in the license notice of the combined work.
In the combination, you must combine any sections entitled "History" in the various original documents, forming one section entitled "History"; likewise combine any sections entitled "Acknowledgements", and any sections entitled "Dedications". You must delete all sections entitled "Endorsements."
A.7 COLLECTIONS OF DOCUMENTS
You may make a collection consisting of the Document and other documents released under this License, and replace the individual copies of this License in the various documents with a single copy that is included in the collection, provided that you follow the rules of this License for verbatim copying of each of the documents in all other respects.
You may extract a single document from such a collection, and distribute it individually under this License, provided you insert a copy of this License into the extracted document, and follow this License in all other respects regarding verbatim copying of that document.
A.8 AGGREGATION WITH INDEPENDENT WORKS
A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distribution medium, does not as a whole count as a Modified Version of the Document, provided no compilation copyright is claimed for the compilation. Such a compilation is called an "aggregate", and this License does not apply to the other self-contained works thus compiled with the Document, on account of their being thus compiled, if they are not themselves derivative works of the Document.
If the Cover Text requirement of section 3 is applicable to these copies of the Document, then if the Document is less than one quarter of the entire aggregate, the Document's Cover Texts may be placed on covers that surround only the Document within the aggregate. Otherwise they must appear on covers around the whole aggregate.
A.9 TRANSLATION
Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License provided that you also include the original English version of this License. In case of a disagreement between the translation and the original English version of this License, the original English version will prevail.
A.10 TERMINATION
You may not copy, modify, sublicense, or distribute the Document except as expressly provided for under this License. Any other attempt to copy, modify, sublicense or distribute the Document is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.
A.11 FUTURE REVISIONS OF THIS LICENSE
The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See http://www.gnu.org/copyleft/.
Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License "or any later version" applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation.
A.12 How to use this License for your documents
To use this License in a document you have written, include a copy of the License in the document and put the following copyright and license notices just after the title page:
Copyright (c) YEAR YOUR NAME. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with the Invariant Sections being LIST THEIR TITLES, with the Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. A copy of the license is included in the section entitled "GNU Free Documentation License".
If you have no Invariant Sections, write "with no Invariant Sections" instead of saying which ones are invariant. If you have no Front-Cover Texts, write "no Front-Cover Texts" instead of "Front-Cover Texts being LIST"; likewise for Back-Cover Texts.
If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.