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 49 extern 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 */ 55 int 56 getsecretkey(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