1/* Iterate through the elements of an argz block.
2 Copyright (C) 1995-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Miles Bader <miles@gnu.org>
5
6 The GNU C Library is free software; you can redistribute it and/or
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.
10
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 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <argz.h>
21#include <string.h>
22
23char *
24__argz_next (const char *argz, size_t argz_len, const char *entry)
25{
26 if (entry)
27 {
28 if (entry < argz + argz_len)
29 entry = strchr (entry, '\0') + 1;
30
31 return entry >= argz + argz_len ? NULL : (char *) entry;
32 }
33 else
34 if (argz_len > 0)
35 return (char *) argz;
36 else
37 return NULL;
38}
39libc_hidden_def (__argz_next)
40weak_alias (__argz_next, argz_next)
41libc_hidden_weak (argz_next)
42