1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1995, 1996 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <err.h> 39 #include <fcntl.h> 40 #include <limits.h> 41 #include <stdint.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <time.h> 46 #include <unistd.h> 47 #include <rpc/rpc.h> 48 #include <rpcsvc/yp.h> 49 #include <sys/param.h> 50 #include <sys/types.h> 51 #include <sys/stat.h> 52 #include "yp_extern.h" 53 #include "ypxfr_extern.h" 54 55 char *yp_dir = ""; /* No particular default needed. */ 56 int debug = 1; 57 58 static void 59 usage(void) 60 { 61 fprintf(stderr, "%s\n%s\n%s\n%s\n", 62 "usage: yp_mkdb -c", 63 " yp_mkdb -u dbname", 64 " yp_mkdb [-c] [-b] [-s] [-f] [-i inputfile] [-o outputfile]", 65 " [-d domainname ] [-m mastername] inputfile dbname"); 66 exit(1); 67 } 68 69 #define PERM_SECURE (S_IRUSR|S_IWUSR) 70 static DB * 71 open_db(char *path, int flags) 72 { 73 extern HASHINFO openinfo; 74 75 return(dbopen(path, flags, PERM_SECURE, DB_HASH, &openinfo)); 76 } 77 78 static void 79 unwind(char *map) 80 { 81 DB *dbp; 82 DBT key, data; 83 84 dbp = open_db(map, O_RDONLY); 85 86 if (dbp == NULL) 87 err(1, "open_db(%s) failed", map); 88 89 key.data = NULL; 90 while (yp_next_record(dbp, &key, &data, 1, 1) == YP_TRUE) 91 printf("%.*s %.*s\n", (int)key.size, (char *)key.data, 92 (int)data.size, (char *)data.data); 93 94 (void)(dbp->close)(dbp); 95 } 96 97 int 98 main(int argc, char *argv[]) 99 { 100 int ch; 101 int un = 0; 102 int clear = 0; 103 int filter_plusminus = 0; 104 char *infile = NULL; 105 char *map = NULL; 106 char *domain = NULL; 107 char *infilename = NULL; 108 char *outfilename = NULL; 109 char *mastername = NULL; 110 int interdom = 0; 111 int secure = 0; 112 DB *dbp; 113 DBT key, data; 114 char buf[10240]; 115 char *keybuf, *datbuf; 116 FILE *ifp; 117 char hname[MAXHOSTNAMELEN + 2]; 118 119 while ((ch = getopt(argc, argv, "uhcbsfd:i:o:m:")) != -1) { 120 switch (ch) { 121 case 'f': 122 filter_plusminus++; 123 break; 124 case 'u': 125 un++; 126 break; 127 case 'c': 128 clear++; 129 break; 130 case 'b': 131 interdom++; 132 break; 133 case 's': 134 secure++; 135 break; 136 case 'd': 137 domain = optarg; 138 break; 139 case 'i': 140 infilename = optarg; 141 break; 142 case 'o': 143 outfilename = optarg; 144 break; 145 case 'm': 146 mastername = optarg; 147 break; 148 case 'h': 149 default: 150 usage(); 151 break; 152 } 153 } 154 155 argc -= optind; 156 argv += optind; 157 158 if (un) { 159 map = argv[0]; 160 if (map == NULL) 161 usage(); 162 unwind(map); 163 exit(0); 164 165 } 166 167 infile = argv[0]; 168 map = argv[1]; 169 170 if (infile == NULL || map == NULL) { 171 if (clear) 172 goto doclear; 173 usage(); 174 } 175 176 if (mastername == NULL) { 177 if (gethostname((char *)&hname, sizeof(hname)) == -1) 178 err(1, "gethostname() failed"); 179 mastername = (char *)&hname; 180 } 181 182 /* 183 * Note that while we can read from stdin, we can't 184 * write to stdout; the db library doesn't let you 185 * write to a file stream like that. 186 */ 187 if (!strcmp(infile, "-")) { 188 ifp = stdin; 189 } else { 190 if ((ifp = fopen(infile, "r")) == NULL) 191 err(1, "failed to open %s", infile); 192 } 193 194 if ((dbp = open_db(map, O_RDWR|O_EXLOCK|O_EXCL|O_CREAT)) == NULL) 195 err(1, "open_db(%s) failed", map); 196 197 if (interdom) { 198 key.data = "YP_INTERDOMAIN"; 199 key.size = sizeof("YP_INTERDOMAIN") - 1; 200 data.data = ""; 201 data.size = 0; 202 yp_put_record(dbp, &key, &data, 0); 203 } 204 205 if (secure) { 206 key.data = "YP_SECURE"; 207 key.size = sizeof("YP_SECURE") - 1; 208 data.data = ""; 209 data.size = 0; 210 yp_put_record(dbp, &key, &data, 0); 211 } 212 213 key.data = "YP_MASTER_NAME"; 214 key.size = sizeof("YP_MASTER_NAME") - 1; 215 data.data = mastername; 216 data.size = strlen(mastername); 217 yp_put_record(dbp, &key, &data, 0); 218 219 key.data = "YP_LAST_MODIFIED"; 220 key.size = sizeof("YP_LAST_MODIFIED") - 1; 221 snprintf(buf, sizeof(buf), "%jd", (intmax_t)time(NULL)); 222 data.data = (char *)&buf; 223 data.size = strlen(buf); 224 yp_put_record(dbp, &key, &data, 0); 225 226 if (infilename) { 227 key.data = "YP_INPUT_FILE"; 228 key.size = sizeof("YP_INPUT_FILE") - 1; 229 data.data = infilename; 230 data.size = strlen(infilename); 231 yp_put_record(dbp, &key, &data, 0); 232 } 233 234 if (outfilename) { 235 key.data = "YP_OUTPUT_FILE"; 236 key.size = sizeof("YP_OUTPUT_FILE") - 1; 237 data.data = outfilename; 238 data.size = strlen(outfilename); 239 yp_put_record(dbp, &key, &data, 0); 240 } 241 242 if (domain) { 243 key.data = "YP_DOMAIN_NAME"; 244 key.size = sizeof("YP_DOMAIN_NAME") - 1; 245 data.data = domain; 246 data.size = strlen(domain); 247 yp_put_record(dbp, &key, &data, 0); 248 } 249 250 while (fgets((char *)&buf, sizeof(buf), ifp)) { 251 char *sep = NULL; 252 int rval; 253 254 /* NUL terminate */ 255 if ((sep = strchr(buf, '\n'))) 256 *sep = '\0'; 257 258 /* handle backslash line continuations */ 259 while (buf[strlen(buf) - 1] == '\\') { 260 fgets((char *)&buf[strlen(buf) - 1], 261 sizeof(buf) - strlen(buf), ifp); 262 if ((sep = strchr(buf, '\n'))) 263 *sep = '\0'; 264 } 265 266 /* find the separation between the key and data */ 267 if ((sep = strpbrk(buf, " \t")) == NULL) { 268 warnx("bad input -- no white space: %s", buf); 269 continue; 270 } 271 272 /* separate the strings */ 273 keybuf = (char *)&buf; 274 datbuf = sep + 1; 275 *sep = '\0'; 276 277 /* set datbuf to start at first non-whitespace character */ 278 while (*datbuf == ' ' || *datbuf == '\t') 279 datbuf++; 280 281 /* Check for silliness. */ 282 if (filter_plusminus) { 283 if (*keybuf == '+' || *keybuf == '-' || 284 *datbuf == '+' || *datbuf == '-') { 285 warnx("bad character at " 286 "start of line: %s", buf); 287 continue; 288 } 289 } 290 291 if (strlen(keybuf) > YPMAXRECORD) { 292 warnx("key too long: %s", keybuf); 293 continue; 294 } 295 296 if (!strlen(keybuf)) { 297 warnx("no key -- check source file for blank lines"); 298 continue; 299 } 300 301 if (strlen(datbuf) > YPMAXRECORD) { 302 warnx("data too long: %s", datbuf); 303 continue; 304 } 305 306 key.data = keybuf; 307 key.size = strlen(keybuf); 308 data.data = datbuf; 309 data.size = strlen(datbuf); 310 311 if ((rval = yp_put_record(dbp, &key, &data, 0)) != YP_TRUE) { 312 switch (rval) { 313 case YP_FALSE: 314 warnx("duplicate key '%s' - skipping", keybuf); 315 break; 316 case YP_BADDB: 317 default: 318 err(1,"failed to write new record - exiting"); 319 break; 320 } 321 } 322 323 } 324 325 (void)(dbp->close)(dbp); 326 327 doclear: 328 if (clear) { 329 char in = 0; 330 char *out = NULL; 331 int stat; 332 if ((stat = callrpc("localhost", YPPROG,YPVERS, YPPROC_CLEAR, 333 (xdrproc_t)xdr_void, &in, 334 (xdrproc_t)xdr_void, out)) != RPC_SUCCESS) { 335 warnx("failed to send 'clear' to local ypserv: %s", 336 clnt_sperrno((enum clnt_stat) stat)); 337 } 338 } 339 340 exit(0); 341 } 342