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 #if !defined(lint) && defined(SCCSIDS) 33 static char sccsid[] = "@(#)secretkey.c 1.8 91/03/11 Copyr 1986 Sun Micro"; 34 #endif 35 36 /* 37 * secretkey.c 38 * Copyright (C) 1986, Sun Microsystems, Inc. 39 */ 40 41 /* 42 * Secret key lookup routines 43 */ 44 #include <stdio.h> 45 #include <pwd.h> 46 #include <rpc/rpc.h> 47 #include <rpc/key_prot.h> 48 #include <rpcsvc/yp_prot.h> 49 #include <rpcsvc/ypclnt.h> 50 #include <string.h> 51 52 extern int xdecrypt( char *, char * ); 53 54 /* 55 * Get somebody's encrypted secret key from the database, using the given 56 * passwd to decrypt it. 57 */ 58 int 59 getsecretkey(char *netname, char *secretkey, char *passwd) 60 { 61 char lookup[3 * HEXKEYBYTES]; 62 char *p; 63 64 if (secretkey == NULL) 65 return (0); 66 if (!getpublicandprivatekey(netname, lookup)) 67 return (0); 68 p = strchr(lookup, ':'); 69 if (p == NULL) { 70 return (0); 71 } 72 p++; 73 if (!xdecrypt(p, passwd)) { 74 return (0); 75 } 76 if (memcmp(p, p + HEXKEYBYTES, KEYCHECKSUMSIZE) != 0) { 77 secretkey[0] = '\0'; 78 return (1); 79 } 80 p[HEXKEYBYTES] = '\0'; 81 (void) strncpy(secretkey, p, HEXKEYBYTES); 82 secretkey[HEXKEYBYTES] = '\0'; 83 return (1); 84 } 85