Linux Standard Base Core Specification 4.0
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__swprintf_chk

Name

__swprintf_chk -- convert formatted wide-character output, with stack checking

Synopsis

#include <wchar.h>

int __swprintf_chk(wchar_t * s, size_t n, int flag, size_t slen, const wchar_t * format);

Description

The interface __swprintf_chk() shall function in the same way as the interface swprintf(), except that __swprintf_chk() shall check for stack overflow before computing a result, depending on the value of the flag parameter. If an overflow is anticipated, the function shall abort and the program calling it shall exit.

In general, the higher the value of flag, the more security measures this interface shall take in the form of checking the stack, parameter values, and so on.

The parameter slen specifies the size of the object pointed to by s. If slen is less than maxlen, the function shall abort and the program calling it shall exit.

In general, the higher the value of flag, the more security measures this interface shall take in the form of checking the stack, parameter values, and so on.

The __swprintf_chk() function is not in the source standard; it is only in the binary standard.

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