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392d7920 | 1 | /* Routines for dealing with '\0' separated arg vectors. |
6d7e8eda | 2 | Copyright (C) 1995-2023 Free Software Foundation, Inc. |
c84142e8 | 3 | This file is part of the GNU C Library. |
392d7920 | 4 | |
c84142e8 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
392d7920 | 9 | |
c84142e8 UD |
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 | |
392d7920 | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 13 | Lesser General Public License for more details. |
392d7920 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
392d7920 RM |
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 | |
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 | } | |
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) |