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 #include <err.h>
37 #include <fcntl.h>
38 #include <limits.h>
39 #include <stdint.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <time.h>
44 #include <unistd.h>
45 #include <rpc/rpc.h>
46 #include <rpcsvc/yp.h>
47 #include <sys/param.h>
48 #include <sys/types.h>
49 #include <sys/stat.h>
50 #include "yp_extern.h"
51 #include "ypxfr_extern.h"
52
53 char *yp_dir = ""; /* No particular default needed. */
54 int debug = 1;
55
56 static void
usage(void)57 usage(void)
58 {
59 fprintf(stderr, "%s\n%s\n%s\n%s\n",
60 "usage: yp_mkdb -c",
61 " yp_mkdb -u dbname",
62 " yp_mkdb [-c] [-b] [-s] [-f] [-i inputfile] [-o outputfile]",
63 " [-d domainname ] [-m mastername] inputfile dbname");
64 exit(1);
65 }
66
67 #define PERM_SECURE (S_IRUSR|S_IWUSR)
68 static DB *
open_db(char * path,int flags)69 open_db(char *path, int flags)
70 {
71 extern HASHINFO openinfo;
72
73 return(dbopen(path, flags, PERM_SECURE, DB_HASH, &openinfo));
74 }
75
76 static void
unwind(char * map)77 unwind(char *map)
78 {
79 DB *dbp;
80 DBT key, data;
81
82 dbp = open_db(map, O_RDONLY);
83
84 if (dbp == NULL)
85 err(1, "open_db(%s) failed", map);
86
87 key.data = NULL;
88 while (yp_next_record(dbp, &key, &data, 1, 1) == YP_TRUE)
89 printf("%.*s %.*s\n", (int)key.size, (char *)key.data,
90 (int)data.size, (char *)data.data);
91
92 (void)(dbp->close)(dbp);
93 }
94
95 int
main(int argc,char * argv[])96 main(int argc, char *argv[])
97 {
98 int ch;
99 int un = 0;
100 int clear = 0;
101 int filter_plusminus = 0;
102 char *infile = NULL;
103 char *map = NULL;
104 char *domain = NULL;
105 char *infilename = NULL;
106 char *outfilename = NULL;
107 char *mastername = NULL;
108 int interdom = 0;
109 int secure = 0;
110 DB *dbp;
111 DBT key, data;
112 char buf[10240];
113 char *keybuf, *datbuf;
114 FILE *ifp;
115 char hname[MAXHOSTNAMELEN + 2];
116
117 while ((ch = getopt(argc, argv, "uhcbsfd:i:o:m:")) != -1) {
118 switch (ch) {
119 case 'f':
120 filter_plusminus++;
121 break;
122 case 'u':
123 un++;
124 break;
125 case 'c':
126 clear++;
127 break;
128 case 'b':
129 interdom++;
130 break;
131 case 's':
132 secure++;
133 break;
134 case 'd':
135 domain = optarg;
136 break;
137 case 'i':
138 infilename = optarg;
139 break;
140 case 'o':
141 outfilename = optarg;
142 break;
143 case 'm':
144 mastername = optarg;
145 break;
146 case 'h':
147 default:
148 usage();
149 break;
150 }
151 }
152
153 argc -= optind;
154 argv += optind;
155
156 if (un) {
157 map = argv[0];
158 if (map == NULL)
159 usage();
160 unwind(map);
161 exit(0);
162
163 }
164
165 infile = argv[0];
166 map = argv[1];
167
168 if (infile == NULL || map == NULL) {
169 if (clear)
170 goto doclear;
171 usage();
172 }
173
174 if (mastername == NULL) {
175 if (gethostname((char *)&hname, sizeof(hname)) == -1)
176 err(1, "gethostname() failed");
177 mastername = (char *)&hname;
178 }
179
180 /*
181 * Note that while we can read from stdin, we can't
182 * write to stdout; the db library doesn't let you
183 * write to a file stream like that.
184 */
185 if (!strcmp(infile, "-")) {
186 ifp = stdin;
187 } else {
188 if ((ifp = fopen(infile, "r")) == NULL)
189 err(1, "failed to open %s", infile);
190 }
191
192 if ((dbp = open_db(map, O_RDWR|O_EXLOCK|O_EXCL|O_CREAT)) == NULL)
193 err(1, "open_db(%s) failed", map);
194
195 if (interdom) {
196 key.data = "YP_INTERDOMAIN";
197 key.size = sizeof("YP_INTERDOMAIN") - 1;
198 data.data = "";
199 data.size = 0;
200 yp_put_record(dbp, &key, &data, 0);
201 }
202
203 if (secure) {
204 key.data = "YP_SECURE";
205 key.size = sizeof("YP_SECURE") - 1;
206 data.data = "";
207 data.size = 0;
208 yp_put_record(dbp, &key, &data, 0);
209 }
210
211 key.data = "YP_MASTER_NAME";
212 key.size = sizeof("YP_MASTER_NAME") - 1;
213 data.data = mastername;
214 data.size = strlen(mastername);
215 yp_put_record(dbp, &key, &data, 0);
216
217 key.data = "YP_LAST_MODIFIED";
218 key.size = sizeof("YP_LAST_MODIFIED") - 1;
219 snprintf(buf, sizeof(buf), "%jd", (intmax_t)time(NULL));
220 data.data = (char *)&buf;
221 data.size = strlen(buf);
222 yp_put_record(dbp, &key, &data, 0);
223
224 if (infilename) {
225 key.data = "YP_INPUT_FILE";
226 key.size = sizeof("YP_INPUT_FILE") - 1;
227 data.data = infilename;
228 data.size = strlen(infilename);
229 yp_put_record(dbp, &key, &data, 0);
230 }
231
232 if (outfilename) {
233 key.data = "YP_OUTPUT_FILE";
234 key.size = sizeof("YP_OUTPUT_FILE") - 1;
235 data.data = outfilename;
236 data.size = strlen(outfilename);
237 yp_put_record(dbp, &key, &data, 0);
238 }
239
240 if (domain) {
241 key.data = "YP_DOMAIN_NAME";
242 key.size = sizeof("YP_DOMAIN_NAME") - 1;
243 data.data = domain;
244 data.size = strlen(domain);
245 yp_put_record(dbp, &key, &data, 0);
246 }
247
248 while (fgets((char *)&buf, sizeof(buf), ifp)) {
249 char *sep = NULL;
250 int rval;
251
252 /* NUL terminate */
253 if ((sep = strchr(buf, '\n')))
254 *sep = '\0';
255
256 /* handle backslash line continuations */
257 while (buf[strlen(buf) - 1] == '\\') {
258 fgets((char *)&buf[strlen(buf) - 1],
259 sizeof(buf) - strlen(buf), ifp);
260 if ((sep = strchr(buf, '\n')))
261 *sep = '\0';
262 }
263
264 /* find the separation between the key and data */
265 if ((sep = strpbrk(buf, " \t")) == NULL) {
266 warnx("bad input -- no white space: %s", buf);
267 continue;
268 }
269
270 /* separate the strings */
271 keybuf = (char *)&buf;
272 datbuf = sep + 1;
273 *sep = '\0';
274
275 /* set datbuf to start at first non-whitespace character */
276 while (*datbuf == ' ' || *datbuf == '\t')
277 datbuf++;
278
279 /* Check for silliness. */
280 if (filter_plusminus) {
281 if (*keybuf == '+' || *keybuf == '-' ||
282 *datbuf == '+' || *datbuf == '-') {
283 warnx("bad character at "
284 "start of line: %s", buf);
285 continue;
286 }
287 }
288
289 if (strlen(keybuf) > YPMAXRECORD) {
290 warnx("key too long: %s", keybuf);
291 continue;
292 }
293
294 if (!strlen(keybuf)) {
295 warnx("no key -- check source file for blank lines");
296 continue;
297 }
298
299 if (strlen(datbuf) > YPMAXRECORD) {
300 warnx("data too long: %s", datbuf);
301 continue;
302 }
303
304 key.data = keybuf;
305 key.size = strlen(keybuf);
306 data.data = datbuf;
307 data.size = strlen(datbuf);
308
309 if ((rval = yp_put_record(dbp, &key, &data, 0)) != YP_TRUE) {
310 switch (rval) {
311 case YP_FALSE:
312 warnx("duplicate key '%s' - skipping", keybuf);
313 break;
314 case YP_BADDB:
315 default:
316 err(1,"failed to write new record - exiting");
317 break;
318 }
319 }
320
321 }
322
323 (void)(dbp->close)(dbp);
324
325 doclear:
326 if (clear) {
327 char in = 0;
328 char *out = NULL;
329 int stat;
330 if ((stat = callrpc("localhost", YPPROG,YPVERS, YPPROC_CLEAR,
331 (xdrproc_t)xdr_void, &in,
332 (xdrproc_t)xdr_void, out)) != RPC_SUCCESS) {
333 warnx("failed to send 'clear' to local ypserv: %s",
334 clnt_sperrno((enum clnt_stat) stat));
335 }
336 }
337
338 exit(0);
339 }
340