newkey.c revision 92921
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#if !defined(lint) && defined(SCCSIDS) 31#if 0 32static char sccsid[] = "@(#)newkey.c 1.8 91/03/11 Copyr 1986 Sun Micro"; 33#endif 34static const char rcsid[] = 35 "$FreeBSD: head/usr.bin/newkey/newkey.c 92921 2002-03-22 01:33:25Z imp $"; 36#endif 37 38/* 39 * Copyright (C) 1986, Sun Microsystems, Inc. 40 */ 41 42/* 43 * Administrative tool to add a new user to the publickey database 44 */ 45#include <sys/types.h> 46#include <sys/time.h> 47#include <sys/resource.h> 48#include <rpc/rpc.h> 49#include <rpc/key_prot.h> 50#ifdef YP 51#include <sys/wait.h> 52#include <rpcsvc/yp_prot.h> 53#include <rpcsvc/ypclnt.h> 54#include <netdb.h> 55#endif /* YP */ 56#include <err.h> 57#include <pwd.h> 58#include <stdio.h> 59#include <string.h> 60#include <unistd.h> 61 62#include "extern.h" 63 64#ifdef YP 65#define MAXMAPNAMELEN 256 66#else 67#define YPOP_CHANGE 1 /* change, do not add */ 68#define YPOP_INSERT 2 /* add, do not change */ 69#define YPOP_DELETE 3 /* delete this entry */ 70#define YPOP_STORE 4 /* add, or change */ 71#define ERR_ACCESS 1 72#define ERR_MALLOC 2 73#define ERR_READ 3 74#define ERR_WRITE 4 75#define ERR_DBASE 5 76#define ERR_KEY 6 77#endif 78 79#ifdef YP 80static char YPDBPATH[]="/var/yp"; 81static char PKMAP[] = "publickey.byname"; 82#else 83static char PKFILE[] = "/etc/publickey"; 84static char *err_string(); 85#endif /* YP */ 86 87static void usage(void); 88 89int 90main(argc, argv) 91 int argc; 92 char *argv[]; 93{ 94 char name[MAXNETNAMELEN + 1]; 95 char public[HEXKEYBYTES + 1]; 96 char secret[HEXKEYBYTES + 1]; 97 char crypt1[HEXKEYBYTES + KEYCHECKSUMSIZE + 1]; 98 char crypt2[HEXKEYBYTES + KEYCHECKSUMSIZE + 1]; 99 int status; 100 char *pass; 101 struct passwd *pw; 102#ifdef undef 103 struct hostent *h; 104#endif 105 106 if (argc != 3 || !(strcmp(argv[1], "-u") == 0 || 107 strcmp(argv[1], "-h") == 0)) { 108 usage(); 109 } 110 if (geteuid() != 0) 111 errx(1, "must be superuser"); 112 113#ifdef YP 114 if (chdir(YPDBPATH) < 0) 115 warn("cannot chdir to %s", YPDBPATH); 116#endif /* YP */ 117 if (strcmp(argv[1], "-u") == 0) { 118 pw = getpwnam(argv[2]); 119 if (pw == NULL) 120 errx(1, "unknown user: %s", argv[2]); 121 (void)user2netname(name, (int)pw->pw_uid, (char *)NULL); 122 } else { 123#ifdef undef 124 h = gethostbyname(argv[2]); 125 if (h == NULL) 126 errx(1, "unknown host: %s", argv[1]); 127 (void)host2netname(name, h->h_name, (char *)NULL); 128#else 129 (void)host2netname(name, argv[2], (char *)NULL); 130#endif 131 } 132 133 (void)printf("Adding new key for %s.\n", name); 134 pass = getpass("New password:"); 135 genkeys(public, secret, pass); 136 137 memcpy(crypt1, secret, HEXKEYBYTES); 138 memcpy(crypt1 + HEXKEYBYTES, secret, KEYCHECKSUMSIZE); 139 crypt1[HEXKEYBYTES + KEYCHECKSUMSIZE] = 0; 140 xencrypt(crypt1, pass); 141 142 memcpy(crypt2, crypt1, HEXKEYBYTES + KEYCHECKSUMSIZE + 1); 143 xdecrypt(crypt2, getpass("Retype password:")); 144 if (memcmp(crypt2, crypt2 + HEXKEYBYTES, KEYCHECKSUMSIZE) != 0 || 145 memcmp(crypt2, secret, HEXKEYBYTES) != 0) 146 errx(1, "password incorrect"); 147 148#ifdef YP 149 (void)printf("Please wait for the database to get updated...\n"); 150#endif 151 if ((status = setpublicmap(name, public, crypt1))) { 152#ifdef YP 153 errx(1, "unable to update NIS database (%u): %s", 154 status, yperr_string(status)); 155#else 156 errx(1, "unable to update publickey database (%u): %s", 157 status, err_string(status)); 158#endif 159 } 160 (void)printf("Your new key has been successfully stored away.\n"); 161 exit(0); 162 /* NOTREACHED */ 163} 164 165static void 166usage() 167{ 168 (void)fprintf(stderr, "%s\n%s\n", 169 "usage: newkey [-u username]", 170 " newkey [-h hostname]"); 171 exit(1); 172} 173 174/* 175 * Set the entry in the public key file 176 */ 177int 178setpublicmap(name, public, secret) 179 char *name; 180 char *public; 181 char *secret; 182{ 183 char pkent[1024]; 184 185 (void)sprintf(pkent, "%s:%s", public, secret); 186#ifdef YP 187 return (mapupdate(name, PKMAP, YPOP_STORE, 188 strlen(name), name, strlen(pkent), pkent)); 189#else 190 return (localupdate(name, PKFILE, YPOP_STORE, 191 strlen(name), name, strlen(pkent), pkent)); 192#endif 193 } 194 195#ifndef YP 196 /* 197 * This returns a pointer to an error message string appropriate 198 * to an input error code. An input value of zero will return 199 * a success message. 200 */ 201static char * 202err_string(code) 203 int code; 204{ 205 char *pmesg; 206 207 switch (code) { 208 case 0: 209 pmesg = "update operation succeeded"; 210 break; 211 case ERR_KEY: 212 pmesg = "no such key in file"; 213 break; 214 case ERR_READ: 215 pmesg = "cannot read the database"; 216 break; 217 case ERR_WRITE: 218 pmesg = "cannot write to the database"; 219 break; 220 case ERR_DBASE: 221 pmesg = "cannot update database"; 222 break; 223 case ERR_ACCESS: 224 pmesg = "permission denied"; 225 break; 226 case ERR_MALLOC: 227 pmesg = "malloc failed"; 228 break; 229 default: 230 pmesg = "unknown error"; 231 break; 232 } 233 return (pmesg); 234} 235#endif 236