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 #if !defined(lint) && defined(SCCSIDS) 32 #if 0 33 static char sccsid[] = "@(#)newkey.c 1.8 91/03/11 Copyr 1986 Sun Micro"; 34 #endif 35 #endif 36 37 /* 38 * Copyright (C) 1986, Sun Microsystems, Inc. 39 */ 40 41 /* 42 * Administrative tool to add a new user to the publickey database 43 */ 44 #include <sys/cdefs.h> 45 #include <sys/types.h> 46 #include <sys/time.h> 47 #include <sys/resource.h> 48 49 #include <rpc/rpc.h> 50 #include <rpc/key_prot.h> 51 52 #ifdef YP 53 #include <sys/wait.h> 54 #include <rpcsvc/yp_prot.h> 55 #include <rpcsvc/ypclnt.h> 56 #include <netdb.h> 57 #endif /* YP */ 58 59 #include <err.h> 60 #include <pwd.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.h> 65 66 #include "extern.h" 67 68 #ifdef YP 69 #define MAXMAPNAMELEN 256 70 #else 71 #define YPOP_CHANGE 1 /* change, do not add */ 72 #define YPOP_INSERT 2 /* add, do not change */ 73 #define YPOP_DELETE 3 /* delete this entry */ 74 #define YPOP_STORE 4 /* add, or change */ 75 #define ERR_ACCESS 1 76 #define ERR_MALLOC 2 77 #define ERR_READ 3 78 #define ERR_WRITE 4 79 #define ERR_DBASE 5 80 #define ERR_KEY 6 81 #endif 82 83 #ifdef YP 84 static char YPDBPATH[]="/var/yp"; 85 static char PKMAP[] = "publickey.byname"; 86 #else 87 static char PKFILE[] = "/etc/publickey"; 88 static const char *err_string(int); 89 #endif /* YP */ 90 91 static void usage(void) __dead2; 92 93 int 94 main(int argc, char *argv[]) 95 { 96 char name[MAXNETNAMELEN + 1]; 97 char public[HEXKEYBYTES + 1]; 98 char secret[HEXKEYBYTES + 1]; 99 char crypt1[HEXKEYBYTES + KEYCHECKSUMSIZE + 1]; 100 char crypt2[HEXKEYBYTES + KEYCHECKSUMSIZE + 1]; 101 int status; 102 char *pass; 103 struct passwd *pw; 104 #ifdef undef 105 struct hostent *h; 106 #endif 107 108 if (argc != 3 || !(strcmp(argv[1], "-u") == 0 || 109 strcmp(argv[1], "-h") == 0)) { 110 usage(); 111 } 112 if (geteuid() != 0) 113 errx(1, "must be superuser"); 114 115 #ifdef YP 116 if (chdir(YPDBPATH) < 0) 117 warn("cannot chdir to %s", YPDBPATH); 118 #endif /* YP */ 119 if (strcmp(argv[1], "-u") == 0) { 120 pw = getpwnam(argv[2]); 121 if (pw == NULL) 122 errx(1, "unknown user: %s", argv[2]); 123 (void)user2netname(name, (int)pw->pw_uid, (char *)NULL); 124 } else { 125 #ifdef undef 126 h = gethostbyname(argv[2]); 127 if (h == NULL) 128 errx(1, "unknown host: %s", argv[1]); 129 (void)host2netname(name, h->h_name, (char *)NULL); 130 #else 131 (void)host2netname(name, argv[2], (char *)NULL); 132 #endif 133 } 134 135 (void)printf("Adding new key for %s.\n", name); 136 pass = getpass("New password:"); 137 genkeys(public, secret, pass); 138 139 memcpy(crypt1, secret, HEXKEYBYTES); 140 memcpy(crypt1 + HEXKEYBYTES, secret, KEYCHECKSUMSIZE); 141 crypt1[HEXKEYBYTES + KEYCHECKSUMSIZE] = 0; 142 xencrypt(crypt1, pass); 143 144 memcpy(crypt2, crypt1, HEXKEYBYTES + KEYCHECKSUMSIZE + 1); 145 xdecrypt(crypt2, getpass("Retype password:")); 146 if (memcmp(crypt2, crypt2 + HEXKEYBYTES, KEYCHECKSUMSIZE) != 0 || 147 memcmp(crypt2, secret, HEXKEYBYTES) != 0) 148 errx(1, "password incorrect"); 149 150 #ifdef YP 151 (void)printf("Please wait for the database to get updated...\n"); 152 #endif 153 if ((status = setpublicmap(name, public, crypt1))) { 154 #ifdef YP 155 errx(1, "unable to update NIS database (%u): %s", 156 status, yperr_string(status)); 157 #else 158 errx(1, "unable to update publickey database (%u): %s", 159 status, err_string(status)); 160 #endif 161 } 162 (void)printf("Your new key has been successfully stored away.\n"); 163 exit(0); 164 /* NOTREACHED */ 165 } 166 167 static void 168 usage(void) 169 { 170 (void)fprintf(stderr, "%s\n%s\n", 171 "usage: newkey -h hostname", 172 " newkey -u username"); 173 exit(1); 174 } 175 176 /* 177 * Set the entry in the public key file 178 */ 179 int 180 setpublicmap(char *name, char *public, char *secret) 181 { 182 char pkent[1024]; 183 184 (void)sprintf(pkent, "%s:%s", public, secret); 185 #ifdef YP 186 return (mapupdate(name, PKMAP, YPOP_STORE, 187 strlen(name), name, strlen(pkent), pkent)); 188 #else 189 return (localupdate(name, PKFILE, YPOP_STORE, 190 strlen(name), name, strlen(pkent), pkent)); 191 #endif 192 } 193 194 #ifndef YP 195 /* 196 * This returns a pointer to an error message string appropriate 197 * to an input error code. An input value of zero will return 198 * a success message. 199 */ 200 static const char * 201 err_string(int code) 202 { 203 const char *pmesg; 204 205 switch (code) { 206 case 0: 207 pmesg = "update operation succeeded"; 208 break; 209 case ERR_KEY: 210 pmesg = "no such key in file"; 211 break; 212 case ERR_READ: 213 pmesg = "cannot read the database"; 214 break; 215 case ERR_WRITE: 216 pmesg = "cannot write to the database"; 217 break; 218 case ERR_DBASE: 219 pmesg = "cannot update database"; 220 break; 221 case ERR_ACCESS: 222 pmesg = "permission denied"; 223 break; 224 case ERR_MALLOC: 225 pmesg = "malloc failed"; 226 break; 227 default: 228 pmesg = "unknown error"; 229 break; 230 } 231 return (pmesg); 232 } 233 #endif 234