newlib-cygwin/newlib/libc/argz/argz_append.c

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/* 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_append, (argz, argz_len, buf, buf_len),
char **argz _AND
size_t *argz_len _AND
const char *buf _AND
size_t buf_len)
{
if (buf_len)
{
size_t last = *argz_len;
*argz_len += buf_len;
if(!(*argz = (char *)realloc(*argz, *argz_len)))
return ENOMEM;
memcpy(*argz + last, buf, buf_len);
}
return 0;
}