strzero_s.c File Reference

#include "safeclib_private.h"
#include "safe_str_constraint.h"
#include "safe_str_lib.h"

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Functions
errno_t	strzero_s (char *dest, rsize_t dmax)
	Nulls dmax characters of dest. More...

Function Documentation

strzero_s()

errno_t strzero_s	(	char *	dest,
		rsize_t	dmax
	)

Nulls dmax characters of dest.

This function can be used to clear strings that contained sensitive data.

Remarks

EXTENSION TO ISO/IEC TR 24731, Programming languages, environments and system software interfaces, Extensions to the C Library, Part I: Bounds-checking interfaces

Parameters

[out]	dest	pointer to string that will be nulled.
[in]	dmax	restricted maximum length of dest

Return values

EOK	when successful operation
ESNULLP	when dest is NULL pointer
ESZEROL	when dmax = 0
ESLEMAX	when dmax > RSIZE_MAX_STR

See also

strispassword_s()

Definition at line 60 of file strzero_s.c.