projects / exim.git / blame
| Commit | Line | Data |
|---|---|---|
| 059ec3d9 PH |
1 | /* |
| 2 | * Copyright (c) 2000-2002 | |
| 3 | * Chris Adams <cmadams@iruntheinter.net> | |
| 4 | * written for HiWAAY Internet Services | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version 2 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * This program 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 | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
| 19 | * USA | |
| 20 | */ | |
| 21 | ||
| 22 | /* | |
| 23 | * Adapted for Exim by Tamas TEVESZ <ice@extreme.hu> | |
| 24 | * Further adapted by Philip Hazel to cut out this function for operating | |
| 25 | * systems that have a built-in version. | |
| 26 | */ | |
| 27 | ||
| 28 | /* The OS has a built-in crypt16(). Some compilers don't like compiling empty | |
| 29 | modules, so keep them happy with a dummy when skipping the rest. */ | |
| 30 | ||
| 31 | #include "config.h" | |
| 32 | ||
| 33 | #ifdef HAVE_CRYPT16 | |
| 34 | static void dummy(int x) { dummy(x-1); } | |
| 35 | #else | |
| 36 | ||
| 37 | /* The OS doesn't have a built-in crypt16(). Compile this one. */ | |
| 38 | ||
| 39 | #include <unistd.h> | |
| 40 | #include <string.h> | |
| 41 | #include "os.h" | |
| 42 | ||
| 43 | #ifdef CRYPT_H | |
| 44 | #include <crypt.h> | |
| 45 | #endif | |
| 46 | ||
| cfda83c6 JH |
47 | char * |
| 48 | crypt16(char *key, char *salt) | |
| 059ec3d9 | 49 | { |
| cfda83c6 JH |
50 | static char res[25]; /* Not threadsafe; like crypt() */ |
| 51 | static char s2[3]; | |
| 52 | char *p; | |
| 059ec3d9 | 53 | |
| cfda83c6 JH |
54 | /* Clear the string of any previous data */ |
| 55 | memset (res, 0, sizeof (res)); | |
| 059ec3d9 | 56 | |
| cfda83c6 JH |
57 | /* crypt the first part */ |
| 58 | if (!(p = crypt (key, salt))) return NULL; | |
| 59 | strncpy (res, p, 13); | |
| 059ec3d9 | 60 | |
| cfda83c6 JH |
61 | if (strlen (key) > 8) |
| 62 | { | |
| 63 | /* crypt the rest | |
| 64 | * the first two characters of the first block (not counting | |
| 65 | * the salt) make up the new salt */ | |
| 059ec3d9 | 66 | |
| cfda83c6 JH |
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)); | |
| 71 | } | |
| 72 | ||
| 73 | return (res); | |
| 059ec3d9 PH |
74 | } |
| 75 | #endif | |
| 76 | ||
| 77 | /* End of crypt16.c */ |