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
33/*
34 * secretkey.c
35 * Copyright (C) 1986, Sun Microsystems, Inc.
36 */
37
38/*
39 * Secret key lookup routines
40 */
41#include <stdio.h>
42#include <pwd.h>
43#include <rpc/rpc.h>
44#include <rpc/key_prot.h>
45#include <rpcsvc/yp_prot.h>
46#include <rpcsvc/ypclnt.h>
47#include <string.h>
48
49extern int xdecrypt( char *, char * );
50
51/*
52 * Get somebody's encrypted secret key from the database, using the given
53 * passwd to decrypt it.
54 */
55int
56getsecretkey(char *netname, char *secretkey, char *passwd)
57{
58	char lookup[3 * HEXKEYBYTES];
59	char *p;
60
61	if (secretkey == NULL)
62		return (0);
63	if (!getpublicandprivatekey(netname, lookup))
64		return (0);
65	p = strchr(lookup, ':');
66	if (p == NULL) {
67		return (0);
68	}
69	p++;
70	if (!xdecrypt(p, passwd)) {
71		return (0);
72	}
73	if (memcmp(p, p + HEXKEYBYTES, KEYCHECKSUMSIZE) != 0) {
74		secretkey[0] = '\0';
75		return (1);
76	}
77	p[HEXKEYBYTES] = '\0';
78	(void) strncpy(secretkey, p, HEXKEYBYTES);
79	secretkey[HEXKEYBYTES] = '\0';
80	return (1);
81}
82