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392d7920 | 1 | /* Routines for dealing with '\0' separated arg vectors. |
688903eb | 2 | Copyright (C) 1995-2018 Free Software Foundation, Inc. |
c84142e8 | 3 | This file is part of the GNU C Library. |
37f3ee49 | 4 | Written by Miles Bader <miles@gnu.org> |
392d7920 | 5 | |
c84142e8 | 6 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
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 |
41bdb6e2 | 14 | Lesser General Public License for more details. |
392d7920 | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
392d7920 RM |
19 | |
20 | #include <argz.h> | |
21 | #include <string.h> | |
22 | #include <stdlib.h> | |
23 | ||
24 | /* Delete ENTRY from ARGZ & ARGZ_LEN, if any. */ | |
25 | void | |
26 | argz_delete (char **argz, size_t *argz_len, char *entry) | |
27 | { | |
28 | if (entry) | |
29 | /* Get rid of the old value for NAME. */ | |
30 | { | |
31 | size_t entry_len = strlen (entry) + 1; | |
32 | *argz_len -= entry_len; | |
00e125db | 33 | memmove (entry, entry + entry_len, *argz_len - (entry - *argz)); |
392d7920 RM |
34 | if (*argz_len == 0) |
35 | { | |
36 | free (*argz); | |
37 | *argz = 0; | |
38 | } | |
39 | } | |
40 | } | |
37f3ee49 | 41 | libc_hidden_def (argz_delete) |