1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part.  Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user or with the express written consent of
8 * Sun Microsystems, Inc.
9 *
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 *
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
17 *
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
21 *
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
25 *
26 * Sun Microsystems, Inc.
27 * 2550 Garcia Avenue
28 * Mountain View, California  94043
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD$");
33
34#if !defined(lint) && defined(SCCSIDS)
35static char sccsid[] = "@(#)secretkey.c 1.8 91/03/11 Copyr 1986 Sun Micro";
36#endif
37
38/*
39 * secretkey.c
40 * Copyright (C) 1986, Sun Microsystems, Inc.
41 */
42
43/*
44 * Secret key lookup routines
45 */
46#include <stdio.h>
47#include <pwd.h>
48#include <rpc/rpc.h>
49#include <rpc/key_prot.h>
50#include <rpcsvc/yp_prot.h>
51#include <rpcsvc/ypclnt.h>
52#include <string.h>
53
54extern int xdecrypt( char *, char * );
55
56/*
57 * Get somebody's encrypted secret key from the database, using the given
58 * passwd to decrypt it.
59 */
60int
61getsecretkey(char *netname, char *secretkey, char *passwd)
62{
63	char lookup[3 * HEXKEYBYTES];
64	char *p;
65
66	if (secretkey == NULL)
67		return (0);
68	if (!getpublicandprivatekey(netname, lookup))
69		return (0);
70	p = strchr(lookup, ':');
71	if (p == NULL) {
72		return (0);
73	}
74	p++;
75	if (!xdecrypt(p, passwd)) {
76		return (0);
77	}
78	if (memcmp(p, p + HEXKEYBYTES, KEYCHECKSUMSIZE) != 0) {
79		secretkey[0] = '\0';
80		return (1);
81	}
82	p[HEXKEYBYTES] = '\0';
83	(void) strncpy(secretkey, p, HEXKEYBYTES);
84	secretkey[HEXKEYBYTES] = '\0';
85	return (1);
86}
87