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)
35 static 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
54 extern 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 */
60 int
getsecretkey(char * netname,char * secretkey,char * passwd)61 getsecretkey(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