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7a12c6bb | 1 | /* Iterate through the elements of an argz block. |
29659dd2 | 2 | Copyright (C) 1995, 96, 97, 98 Free Software Foundation, Inc. |
c84142e8 | 3 | This file is part of the GNU C Library. |
29659dd2 | 4 | Written by Miles Bader <miles@gnu.org> |
7a12c6bb | 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. | |
7a12c6bb | 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 | |
7a12c6bb | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 14 | Lesser General Public License for more details. |
7a12c6bb | 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/>. */ | |
7a12c6bb RM |
19 | |
20 | #include <argz.h> | |
21 | #include <string.h> | |
22 | ||
23 | char * | |
29659dd2 | 24 | __argz_next (const char *argz, size_t argz_len, const char *entry) |
7a12c6bb RM |
25 | { |
26 | if (entry) | |
27 | { | |
28 | if (entry < argz + argz_len) | |
29 | entry = strchr (entry, '\0') + 1; | |
30 | ||
8f0c527e | 31 | return entry >= argz + argz_len ? NULL : (char *) entry; |
7a12c6bb RM |
32 | } |
33 | else | |
34 | if (argz_len > 0) | |
531e4bca | 35 | return (char *) argz; |
7a12c6bb RM |
36 | else |
37 | return NULL; | |
38 | } | |
39 | weak_alias (__argz_next, argz_next) |