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, MERCHANTABILITY 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 * @(#)secretkey.c 1.8 91/03/11 Copyr 1986 Sun Micro 31 * $FreeBSD: src/lib/librpcsvc/secretkey.c,v 1.3 2002/03/21 23:53:40 obrien Exp $ 32 */ 33 34 /* 35 * secretkey.c 36 * Copyright (C) 1986, Sun Microsystems, Inc. 37 */ 38 39 /* 40 * Secret key lookup routines 41 */ 42 #include <stdio.h> 43 #include <pwd.h> 44 #include <rpc/rpc.h> 45 #include <rpc/key_prot.h> 46 #include <rpcsvc/yp_prot.h> 47 #include <rpcsvc/ypclnt.h> 48 #include <string.h> 49 50 extern int xdecrypt(char *, char *); 51 52 /* 53 * Get somebody's encrypted secret key from the database, using the given 54 * passwd to decrypt it. 55 */ 56 int 57 getsecretkey(char *netname, char *secretkey, char *passwd) 58 { 59 char lookup[3 * HEXKEYBYTES]; 60 char *p; 61 62 if (secretkey == NULL) 63 return (0); 64 if (!getpublicandprivatekey(netname, lookup)) 65 return (0); 66 p = strchr(lookup, ':'); 67 if (p == NULL) { 68 return (0); 69 } 70 p++; 71 if (!xdecrypt(p, passwd)) { 72 return (0); 73 } 74 if (memcmp(p, p + HEXKEYBYTES, KEYCHECKSUMSIZE) != 0) { 75 secretkey[0] = '\0'; 76 return (1); 77 } 78 p[HEXKEYBYTES] = '\0'; 79 strncpy(secretkey, p, HEXKEYBYTES); 80 secretkey[HEXKEYBYTES] = '\0'; 81 return (1); 82 } 83