xref: /onnv-gate/usr/src/lib/libbc/libc/gen/common/crypt.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"  /* from S5R2 1.3 */
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /*LINTLIBRARY*/
30*0Sstevel@tonic-gate /* The real crypt is now _crypt.  This version performs automatic
31*0Sstevel@tonic-gate  * authentication via pwauth for special password entries, or simply
32*0Sstevel@tonic-gate  * calls _crypt for the usual case.
33*0Sstevel@tonic-gate  */
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate char *
crypt(pw,salt)36*0Sstevel@tonic-gate crypt(pw, salt)
37*0Sstevel@tonic-gate char	*pw, *salt;
38*0Sstevel@tonic-gate {
39*0Sstevel@tonic-gate 	static char *iobuf;
40*0Sstevel@tonic-gate 	extern char *_crypt();
41*0Sstevel@tonic-gate 	extern char *malloc();
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate 	if (iobuf == 0) {
44*0Sstevel@tonic-gate 		iobuf = malloc((unsigned)16);
45*0Sstevel@tonic-gate 		if (iobuf == 0)
46*0Sstevel@tonic-gate 			return (0);
47*0Sstevel@tonic-gate 	}
48*0Sstevel@tonic-gate 	/* handle the case where the password is really in passwd.adjunct.
49*0Sstevel@tonic-gate 	 * In this case, the salt will start with "##".  We should call
50*0Sstevel@tonic-gate 	 * passauth to determine if pw is valid.  If so, we should return
51*0Sstevel@tonic-gate 	 * the salt, and otherwise return NULL.  If salt does not start with
52*0Sstevel@tonic-gate 	 * "##", crypt will act in the normal fashion.
53*0Sstevel@tonic-gate 	 */
54*0Sstevel@tonic-gate 	if (salt[0] == '#' && salt[1] == '#') {
55*0Sstevel@tonic-gate 		if (pwdauth(salt+2, pw) == 0)
56*0Sstevel@tonic-gate 			strcpy(iobuf, salt);
57*0Sstevel@tonic-gate 		else
58*0Sstevel@tonic-gate 			iobuf[0] = '\0';
59*0Sstevel@tonic-gate 		return(iobuf);
60*0Sstevel@tonic-gate 	}
61*0Sstevel@tonic-gate 	/* handle the case where the password is really in group.adjunct.
62*0Sstevel@tonic-gate 	 * In this case, the salt will start with "#$".  We should call
63*0Sstevel@tonic-gate 	 * grpauth to determine if pw is valid.  If so, we should return
64*0Sstevel@tonic-gate 	 * the salt, and otherwise return NULL.  If salt does not start with
65*0Sstevel@tonic-gate 	 * "#$", crypt will act in the normal fashion.
66*0Sstevel@tonic-gate 	 */
67*0Sstevel@tonic-gate 	if (salt[0] == '#' && salt[1] == '$') {
68*0Sstevel@tonic-gate 		if (grpauth(salt+2, pw) == 0)
69*0Sstevel@tonic-gate 			strcpy(iobuf, salt);
70*0Sstevel@tonic-gate 		else
71*0Sstevel@tonic-gate 			iobuf[0] = '\0';
72*0Sstevel@tonic-gate 		return(iobuf);
73*0Sstevel@tonic-gate 	}
74*0Sstevel@tonic-gate 	return (_crypt(pw, salt));
75*0Sstevel@tonic-gate }
76