1/* Copyright (C) 2015-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <nss.h>
19#include <stdbool.h>
20#include <string.h>
21
22static const char invalid_characters[] = NSS_INVALID_FIELD_CHARACTERS ",";
23
24/* Check that all list members match the field syntax requirements and
25 do not contain the character ','. */
26_Bool
27__nss_valid_list_field (char **list)
28{
29 if (list == NULL)
30 return true;
31 for (; *list != NULL; ++list)
32 if (strpbrk (*list, invalid_characters) != NULL)
33 return false;
34 return true;
35}
36