Retro68/gcc/newlib/libc/argz/argz_add.c

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2017-04-11 21:13:36 +00:00
/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
*
* Permission to use, copy, modify, and distribute this software
* is freely granted, provided that this notice is preserved.
*/
#include <argz.h>
#include <errno.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
error_t
_DEFUN (argz_add, (argz, argz_len, str),
char **argz _AND
size_t *argz_len _AND
const char *str)
{
int len_to_add = 0;
size_t last = *argz_len;
if (str == NULL)
return 0;
len_to_add = strlen(str) + 1;
*argz_len += len_to_add;
if(!(*argz = (char *)realloc(*argz, *argz_len)))
return ENOMEM;
memcpy(*argz + last, str, len_to_add);
return 0;
}