1 /* $Cambridge: exim/src/src/crypt16.c,v 1.1 2004/10/07 10:39:01 ph10 Exp $ */
4 * Copyright (c) 2000-2002
5 * Chris Adams <cmadams@iruntheinter.net>
6 * written for HiWAAY Internet Services
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 * Adapted for Exim by Tamas TEVESZ <ice@extreme.hu>
26 * Further adapted by Philip Hazel to cut out this function for operating
27 * systems that have a built-in version.
30 /* The OS has a built-in crypt16(). Some compilers don't like compiling empty
31 modules, so keep them happy with a dummy when skipping the rest. */
36 static void dummy(int x) { dummy(x-1); }
39 /* The OS doesn't have a built-in crypt16(). Compile this one. */
49 char *crypt16(char *key, char *salt)
55 /* Clear the string of any previous data */
56 memset (res, 0, sizeof (res));
58 /* crypt the first part */
59 p = crypt (key, salt);
65 * the first two characters of the first block (not counting
66 * the salt) make up the new salt */
67 strncpy (s2, &(res[2]), 2);
68 p = crypt (&(key[8]), s2);
69 strncpy (&(res[13]), &(p[2]), 11);
70 memset (s2, 0, sizeof (s2));
77 /* End of crypt16.c */