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392d7920 | 1 | /* Routines for dealing with '\0' separated arg vectors. |
c84142e8 UD |
2 | Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. | |
392d7920 RM |
4 | Written by Miles Bader <miles@gnu.ai.mit.edu> |
5 | ||
c84142e8 UD |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Library General Public License as | |
8 | published by the Free Software Foundation; either version 2 of the | |
9 | License, or (at your option) any later version. | |
392d7920 | 10 | |
c84142e8 UD |
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 | |
392d7920 | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
c84142e8 | 14 | Library General Public License for more details. |
392d7920 | 15 | |
c84142e8 UD |
16 | You should have received a copy of the GNU Library General Public |
17 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
18 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
392d7920 RM |
20 | |
21 | #include <argz.h> | |
22 | #include <string.h> | |
23 | #include <stdlib.h> | |
24 | ||
25 | /* Add BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN. */ | |
26 | error_t | |
27 | __argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len) | |
28 | { | |
29 | size_t new_argz_len = *argz_len + buf_len; | |
30 | char *new_argz = realloc (*argz, new_argz_len); | |
31 | if (new_argz) | |
32 | { | |
33 | memcpy (new_argz + *argz_len, buf, buf_len); | |
34 | *argz = new_argz; | |
35 | *argz_len = new_argz_len; | |
36 | return 0; | |
37 | } | |
38 | else | |
39 | return ENOMEM; | |
40 | } | |
41 | weak_alias (__argz_append, argz_append) | |
42 | ||
43 | /* Add STR to the argz vector in ARGZ & ARGZ_LEN. This should be moved into | |
44 | argz.c in libshouldbelibc. */ | |
45 | error_t | |
46 | __argz_add (char **argz, size_t *argz_len, const char *str) | |
47 | { | |
48 | return __argz_append (argz, argz_len, str, strlen (str) + 1); | |
49 | } | |
50 | weak_alias (__argz_add, argz_add) |