crypt.c revision 64918
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: head/lib/libcrypt/crypt.c 64918 2000-08-22 02:15:54Z green $ 27 * 28 */ 29 30#if defined(LIBC_SCCS) && !defined(lint) 31static char rcsid[] = "$FreeBSD: head/lib/libcrypt/crypt.c 64918 2000-08-22 02:15:54Z green $"; 32#endif /* LIBC_SCCS and not lint */ 33 34#include <string.h> 35#include "crypt.h" 36 37static const struct { 38 const char *const name; 39 char *(*const func)(const char *, const char *); 40 const char *const magic; 41} crypt_types[] = { 42 { 43 "des", 44 crypt_des, 45 NULL 46 }, 47 { 48 "md5", 49 crypt_md5, 50 "$1$" 51 }, 52 { 53 NULL, 54 NULL 55 } 56}; 57 58static int crypt_type = 0; 59 60const char * 61crypt_get_format(void) { 62 63 return (crypt_types[crypt_type].name); 64} 65 66int 67crypt_set_format(char *type) { 68 int i; 69 70 for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) { 71 if (strcmp(type, crypt_types[i].name) == 0) { 72 crypt_type = i; 73 return (1); 74 } 75 } 76 return (0); 77} 78 79char * 80crypt(char *passwd, char *salt) 81{ 82 int i; 83 84 for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) { 85 if (crypt_types[i].magic != NULL && strncmp(salt, 86 crypt_types[i].magic, strlen(crypt_types[i].magic)) == 0) 87 return (crypt_types[i].func(passwd, salt)); 88 } 89 return (crypt_types[crypt_type].func(passwd, salt)); 90} 91