1 /* 2 * Copyright (c) 1999 3 * Mark Murray. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY MARK MURRAY AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL MARK MURRAY OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 * 28 */ 29 30 #if defined(LIBC_SCCS) && !defined(lint) 31 static char rcsid[] = "$FreeBSD$"; 32 #endif /* LIBC_SCCS and not lint */ 33 34 #include <string.h> 35 #include "crypt.h" 36 37 static const struct { 38 const char *const name; 39 char *(*const func)(const char *, const char *); 40 const char *const magic; 41 } crypt_types[] = { 42 #ifdef NONEXPORTABLE_CRYPT 43 { 44 "des", 45 crypt_des, 46 NULL 47 }, 48 #endif 49 { 50 "md5", 51 crypt_md5, 52 "$1$" 53 }, 54 { 55 NULL, 56 NULL 57 } 58 }; 59 60 static int crypt_type = 0; 61 62 const char * 63 crypt_get_format(void) { 64 65 return (crypt_types[crypt_type].name); 66 } 67 68 int 69 crypt_set_format(char *type) { 70 int i; 71 72 for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) { 73 if (strcmp(type, crypt_types[i].name) == 0) { 74 crypt_type = i; 75 return (1); 76 } 77 } 78 return (0); 79 } 80 81 char * 82 crypt(char *passwd, char *salt) 83 { 84 int i; 85 86 for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) { 87 if (crypt_types[i].magic != NULL && strncmp(salt, 88 crypt_types[i].magic, strlen(crypt_types[i].magic)) == 0) 89 return (crypt_types[i].func(passwd, salt)); 90 } 91 return (crypt_types[crypt_type].func(passwd, salt)); 92 } 93