__memset_chk

Name

__memset_chk -- fill memory with a constant byte, using buffer overflow checking

Synopsis

#include <string.h>

void * __memset_chk(void * dest, int c, size_t len, size_t destlen);

Description

The interface __memset_chk() shall function in the same way as the interface memset(), except that __memset_chk() shall check for buffer overflow before computing a result. If an overflow is anticipated, the function shall abort and the program calling it shall exit.

The parameter destlen specifies the size of the object dest. If len exceeds destlen, the function shall abort, and the program calling it shall exit.

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