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, key.data, (int)data.size, 92 data.data); 93 94 (void)(dbp->close)(dbp); 95 return; 96 } 97 98 int 99 main(int argc, char *argv[]) 100 { 101 int ch; 102 int un = 0; 103 int clear = 0; 104 int filter_plusminus = 0; 105 char *infile = NULL; 106 char *map = NULL; 107 char *domain = NULL; 108 char *infilename = NULL; 109 char *outfilename = NULL; 110 char *mastername = NULL; 111 int interdom = 0; 112 int secure = 0; 113 DB *dbp; 114 DBT key, data; 115 char buf[10240]; 116 char *keybuf, *datbuf; 117 FILE *ifp; 118 char hname[MAXHOSTNAMELEN + 2]; 119 120 while ((ch = getopt(argc, argv, "uhcbsfd:i:o:m:")) != -1) { 121 switch (ch) { 122 case 'f': 123 filter_plusminus++; 124 break; 125 case 'u': 126 un++; 127 break; 128 case 'c': 129 clear++; 130 break; 131 case 'b': 132 interdom++; 133 break; 134 case 's': 135 secure++; 136 break; 137 case 'd': 138 domain = optarg; 139 break; 140 case 'i': 141 infilename = optarg; 142 break; 143 case 'o': 144 outfilename = optarg; 145 break; 146 case 'm': 147 mastername = optarg; 148 break; 149 case 'h': 150 default: 151 usage(); 152 break; 153 } 154 } 155 156 argc -= optind; 157 argv += optind; 158 159 if (un) { 160 map = argv[0]; 161 if (map == NULL) 162 usage(); 163 unwind(map); 164 exit(0); 165 166 } 167 168 infile = argv[0]; 169 map = argv[1]; 170 171 if (infile == NULL || map == NULL) { 172 if (clear) 173 goto doclear; 174 usage(); 175 } 176 177 if (mastername == NULL) { 178 if (gethostname((char *)&hname, sizeof(hname)) == -1) 179 err(1, "gethostname() failed"); 180 mastername = (char *)&hname; 181 } 182 183 /* 184 * Note that while we can read from stdin, we can't 185 * write to stdout; the db library doesn't let you 186 * write to a file stream like that. 187 */ 188 if (!strcmp(infile, "-")) { 189 ifp = stdin; 190 } else { 191 if ((ifp = fopen(infile, "r")) == NULL) 192 err(1, "failed to open %s", infile); 193 } 194 195 if ((dbp = open_db(map, O_RDWR|O_EXLOCK|O_EXCL|O_CREAT)) == NULL) 196 err(1, "open_db(%s) failed", map); 197 198 if (interdom) { 199 key.data = "YP_INTERDOMAIN"; 200 key.size = sizeof("YP_INTERDOMAIN") - 1; 201 data.data = ""; 202 data.size = 0; 203 yp_put_record(dbp, &key, &data, 0); 204 } 205 206 if (secure) { 207 key.data = "YP_SECURE"; 208 key.size = sizeof("YP_SECURE") - 1; 209 data.data = ""; 210 data.size = 0; 211 yp_put_record(dbp, &key, &data, 0); 212 } 213 214 key.data = "YP_MASTER_NAME"; 215 key.size = sizeof("YP_MASTER_NAME") - 1; 216 data.data = mastername; 217 data.size = strlen(mastername); 218 yp_put_record(dbp, &key, &data, 0); 219 220 key.data = "YP_LAST_MODIFIED"; 221 key.size = sizeof("YP_LAST_MODIFIED") - 1; 222 snprintf(buf, sizeof(buf), "%jd", (intmax_t)time(NULL)); 223 data.data = (char *)&buf; 224 data.size = strlen(buf); 225 yp_put_record(dbp, &key, &data, 0); 226 227 if (infilename) { 228 key.data = "YP_INPUT_FILE"; 229 key.size = sizeof("YP_INPUT_FILE") - 1; 230 data.data = infilename; 231 data.size = strlen(infilename); 232 yp_put_record(dbp, &key, &data, 0); 233 } 234 235 if (outfilename) { 236 key.data = "YP_OUTPUT_FILE"; 237 key.size = sizeof("YP_OUTPUT_FILE") - 1; 238 data.data = outfilename; 239 data.size = strlen(outfilename); 240 yp_put_record(dbp, &key, &data, 0); 241 } 242 243 if (domain) { 244 key.data = "YP_DOMAIN_NAME"; 245 key.size = sizeof("YP_DOMAIN_NAME") - 1; 246 data.data = domain; 247 data.size = strlen(domain); 248 yp_put_record(dbp, &key, &data, 0); 249 } 250 251 while (fgets((char *)&buf, sizeof(buf), ifp)) { 252 char *sep = NULL; 253 int rval; 254 255 /* NUL terminate */ 256 if ((sep = strchr(buf, '\n'))) 257 *sep = '\0'; 258 259 /* handle backslash line continuations */ 260 while (buf[strlen(buf) - 1] == '\\') { 261 fgets((char *)&buf[strlen(buf) - 1], 262 sizeof(buf) - strlen(buf), ifp); 263 if ((sep = strchr(buf, '\n'))) 264 *sep = '\0'; 265 } 266 267 /* find the separation between the key and data */ 268 if ((sep = strpbrk(buf, " \t")) == NULL) { 269 warnx("bad input -- no white space: %s", buf); 270 continue; 271 } 272 273 /* separate the strings */ 274 keybuf = (char *)&buf; 275 datbuf = sep + 1; 276 *sep = '\0'; 277 278 /* set datbuf to start at first non-whitespace character */ 279 while (*datbuf == ' ' || *datbuf == '\t') 280 datbuf++; 281 282 /* Check for silliness. */ 283 if (filter_plusminus) { 284 if (*keybuf == '+' || *keybuf == '-' || 285 *datbuf == '+' || *datbuf == '-') { 286 warnx("bad character at " 287 "start of line: %s", buf); 288 continue; 289 } 290 } 291 292 if (strlen(keybuf) > YPMAXRECORD) { 293 warnx("key too long: %s", keybuf); 294 continue; 295 } 296 297 if (!strlen(keybuf)) { 298 warnx("no key -- check source file for blank lines"); 299 continue; 300 } 301 302 if (strlen(datbuf) > YPMAXRECORD) { 303 warnx("data too long: %s", datbuf); 304 continue; 305 } 306 307 key.data = keybuf; 308 key.size = strlen(keybuf); 309 data.data = datbuf; 310 data.size = strlen(datbuf); 311 312 if ((rval = yp_put_record(dbp, &key, &data, 0)) != YP_TRUE) { 313 switch (rval) { 314 case YP_FALSE: 315 warnx("duplicate key '%s' - skipping", keybuf); 316 break; 317 case YP_BADDB: 318 default: 319 err(1,"failed to write new record - exiting"); 320 break; 321 } 322 } 323 324 } 325 326 (void)(dbp->close)(dbp); 327 328 doclear: 329 if (clear) { 330 char in = 0; 331 char *out = NULL; 332 int stat; 333 if ((stat = callrpc("localhost", YPPROG,YPVERS, YPPROC_CLEAR, 334 (xdrproc_t)xdr_void, &in, 335 (xdrproc_t)xdr_void, out)) != RPC_SUCCESS) { 336 warnx("failed to send 'clear' to local ypserv: %s", 337 clnt_sperrno((enum clnt_stat) stat)); 338 } 339 } 340 341 exit(0); 342 } 343