2 * This file is part of DisOrder
3 * Copyright (C) 2008 Richard Kettlewell
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * @brief Email addresses
27 /** @brief Test email address validity
28 * @param address to verify
29 * @return 1 if it might be valid, 0 if it is definitely not
31 * This function doesn't promise to tell you whether an address is deliverable,
32 * it just does basic syntax checks.
34 int email_valid(const char *address) {
35 /* There must be an '@' sign */
36 const char *at = strchr(address, '@');
39 /* There must be only one of them */
40 if(strchr(at + 1, '@'))
42 /* It mustn't be the first or last character */
43 if(at == address || !at[1])
45 /* Local part must be valid */
47 /* Domain part must be valid */