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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/***
*strlen_s.c - contains strnlen() routine
*
*
*Purpose:
* strnlen returns the length of a null-terminated string,
* not including the null byte itself, up to the specified max size
*
*******************************************************************************/
#include <string.h>
#include <errno.h>
#include <limits.h>
#include "internal_securecrt.h"
#include "mbusafecrt_internal.h"
/***
*strnlen - return the length of a null-terminated string
*
*Purpose:
* Finds the length in bytes of the given string, not including
* the final null character. Only the first maxsize characters
* are inspected: if the null character is not found, maxsize is
* returned.
*
*Entry:
* const char * str - string whose length is to be computed
* size_t maxsize
*
*Exit:
* Length of the string "str", exclusive of the final null byte, or
* maxsize if the null character is not found.
*
*Exceptions:
*
*******************************************************************************/
size_t __cdecl PAL_strnlen(const char *str, size_t maxsize)
{
size_t n;
/* Note that we do not check if str == NULL, because we do not
* return errno_t...
*/
for (n = 0; n < maxsize && *str; n++, str++)
;
return n;
}
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