1/* Routines for dealing with '\0' separated arg vectors.
2 Copyright (C) 1995-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Miles Bader <miles@gnu.ai.mit.edu>
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <argz.h>
21#include <string.h>
22#include <stdlib.h>
23
24/* Add BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN. */
25error_t
26__argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len)
27{
28 size_t new_argz_len = *argz_len + buf_len;
29 char *new_argz = realloc (*argz, new_argz_len);
30 if (new_argz)
31 {
32 memcpy (new_argz + *argz_len, buf, buf_len);
33 *argz = new_argz;
34 *argz_len = new_argz_len;
35 return 0;
36 }
37 else
38 return ENOMEM;
39}
40weak_alias (__argz_append, argz_append)
41
42/* Add STR to the argz vector in ARGZ & ARGZ_LEN. This should be moved into
43 argz.c in libshouldbelibc. */
44error_t
45__argz_add (char **argz, size_t *argz_len, const char *str)
46{
47 return __argz_append (argz, argz_len, str, strlen (str) + 1);
48}
49weak_alias (__argz_add, argz_add)
50