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7a12c6bb | 1 | /* Iterate through the elements of an argz block. |
c84142e8 UD |
2 | Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. | |
7a12c6bb 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. | |
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 |
c84142e8 | 14 | Library General Public License for more details. |
7a12c6bb | 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. */ | |
7a12c6bb RM |
20 | |
21 | #include <argz.h> | |
22 | #include <string.h> | |
23 | ||
24 | char * | |
25 | __argz_next (char *argz, size_t argz_len, const char *entry) | |
26 | { | |
27 | if (entry) | |
28 | { | |
29 | if (entry < argz + argz_len) | |
30 | entry = strchr (entry, '\0') + 1; | |
31 | ||
8f0c527e | 32 | return entry >= argz + argz_len ? NULL : (char *) entry; |
7a12c6bb RM |
33 | } |
34 | else | |
35 | if (argz_len > 0) | |
36 | return argz; | |
37 | else | |
38 | return NULL; | |
39 | } | |
40 | weak_alias (__argz_next, argz_next) |