Update.
[glibc.git] / string / argz-next.c
blob46d393444e26b5ad7fb6a765c87681eea8dac114
1 /* Iterate through the elements of an argz block.
2 Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Miles Bader <miles@gnu.ai.mit.edu>
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.
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
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
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. */
21 #include <argz.h>
22 #include <string.h>
24 char *
25 __argz_next (char *argz, size_t argz_len, const char *entry)
27 if (entry)
29 if (entry < argz + argz_len)
30 entry = strchr (entry, '\0') + 1;
32 return entry >= argz + argz_len ? NULL : (char *) entry;
34 else
35 if (argz_len > 0)
36 return argz;
37 else
38 return NULL;
40 weak_alias (__argz_next, argz_next)