xref: /freebsd/lib/libc/gen/crypt.c (revision 97759ccc715c4b365432c16d763c50eecfcb1100)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1989 The Regents of the University of California.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Tom Truscott.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #include <stdio.h>
36 #include <string.h>
37 #include <unistd.h>
38 
39 /*
40  * UNIX password, and DES, encryption.
41  *
42  * since this is non-exportable, this is just a dummy.  if you want real
43  * encryption, make sure you've got libcrypt.a around.
44  */
45 
46 int __freebsd11_des_setkey(const char *key);
47 int __freebsd11_des_cipher(const char *in, char *out, long salt, int num_iter);
48 int __freebsd11_setkey(const char *key);
49 int __freebsd11_encrypt(char *block, int flag);
50 
51 /* ARGSUSED */
52 int
53 __freebsd11_des_setkey(const char *key __unused)
54 {
55 	fprintf(stderr, "WARNING!  des_setkey(3) not present in the system!\n");
56 	return (0);
57 }
58 
59 /* ARGSUSED */
60 int
61 __freebsd11_des_cipher(const char *in, char *out, long salt __unused,
62     int num_iter __unused)
63 {
64 	fprintf(stderr, "WARNING!  des_cipher(3) not present in the system!\n");
65 	bcopy(in, out, 8);
66 	return (0);
67 }
68 
69 /* ARGSUSED */
70 int
71 __freebsd11_setkey(const char *key __unused)
72 {
73 	fprintf(stderr, "WARNING!  setkey(3) not present in the system!\n");
74 	return (0);
75 }
76 
77 /* ARGSUSED */
78 int
79 __freebsd11_encrypt(char *block __unused, int flag __unused)
80 {
81 	fprintf(stderr, "WARNING!  encrypt(3) not present in the system!\n");
82 	return (0);
83 }
84 
85 __sym_compat(des_setkey, __freebsd11_des_setkey, FBSD_1.0);
86 __sym_compat(des_cipher, __freebsd11_des_cipher, FBSD_1.0);
87 __sym_compat(setkey, __freebsd11_setkey, FBSD_1.0);
88 __sym_compat(encrypt, __freebsd11_encrypt, FBSD_1.0);
89