Linux Standard Base Core Specification 3.2 | ||
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The fstatfs() function returns information about a mounted file system. The file system is identified by fd, a file descriptor of an open file within the mounted filesystem. The results are placed in the structure pointed to by buf.
Fields that are undefined for a particular file system shall be set to 0.
Note: Application developers should use the fstatvfs() function to obtain general file system information. Applications should only use the fstatfs() function if they must determine the file system type, which need not be provided by fstatvfs().
On success, the fstatfs() function shall
return 0 and set the fields of the
structure idenfitied by buf accordingly.
On error, the fstatfs() function shall
return -1 and set
errno
accordingly.
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