1 /* Routines for dealing with '\0' separated arg vectors.
2 Copyright (C) 1995-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <argz.h>
20 #include <string.h>
21 #include <stdlib.h>
22
23 /* Add BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN. */
24 error_t
__argz_append(char ** argz,size_t * argz_len,const char * buf,size_t buf_len)25 __argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len)
26 {
27 size_t new_argz_len = *argz_len + buf_len;
28 char *new_argz = realloc (*argz, new_argz_len);
29 if (new_argz)
30 {
31 memcpy (new_argz + *argz_len, buf, buf_len);
32 *argz = new_argz;
33 *argz_len = new_argz_len;
34 return 0;
35 }
36 else
37 return ENOMEM;
38 }
weak_alias(__argz_append,argz_append)39 weak_alias (__argz_append, argz_append)
40
41 /* Add STR to the argz vector in ARGZ & ARGZ_LEN. This should be moved into
42 argz.c in libshouldbelibc. */
43 error_t
44 __argz_add (char **argz, size_t *argz_len, const char *str)
45 {
46 return __argz_append (argz, argz_len, str, strlen (str) + 1);
47 }
48 weak_alias (__argz_add, argz_add)
49