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1 /*
2  * Copyright (c) 1995, 1996
3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *      This product includes software developed by Bill Paul.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  *      $Id: yp_mkdb.c,v 1.6 1997/02/22 16:14:50 peter Exp $
33  */
34
35 #include <stdio.h>
36 #include <string.h>
37 #include <fcntl.h>
38 #include <sys/param.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41 #include <limits.h>
42 #include <stdlib.h>
43 #include <unistd.h>
44 #include <errno.h>
45 #include <time.h>
46 #include <err.h>
47 #include <rpc/rpc.h>
48 #include <rpcsvc/yp.h>
49 #include "yp_extern.h"
50 #include "ypxfr_extern.h"
51
52 #ifndef lint
53 static const char rcsid[] = "$Id: yp_mkdb.c,v 1.6 1997/02/22 16:14:50 peter Exp $";
54 #endif
55
56 char *yp_dir = "";      /* No particular default needed. */
57 char *progname = "yp_mkdb";
58 int _rpcpmstart = 0;
59 int debug = 1;
60
61 static void usage()
62 {
63         fprintf(stderr, "usage: %s -c\n", progname);
64         fprintf(stderr, "usage: %s -u dbname\n", progname);
65         fprintf(stderr, "usage: %s [-c] [-b] [-s] [-i inputfile] \
66 [-o outputfile]\n", progname);
67         fprintf(stderr, "               [-d domainname ] [-m mastername] \
68 inputfile dbname\n");
69         exit(1);
70 }
71
72 #define PERM_SECURE (S_IRUSR|S_IWUSR)
73
74 static DB *open_db(path, flags)
75         char *path;
76         int flags;
77 {
78         extern HASHINFO openinfo;
79
80         return(dbopen(path, flags, PERM_SECURE, DB_HASH, &openinfo));
81 }
82
83 static void unwind(map)
84         char *map;
85 {
86         DB *dbp;
87         DBT key, data;
88
89         dbp = open_db(map, O_RDONLY);
90
91         if (dbp == NULL)
92                 err(1, "open_db(%s) failed", map);
93
94         key.data = NULL;
95         while(yp_next_record(dbp, &key, &data, 1, 1) == YP_TRUE)
96                 printf("%.*s %.*s\n", key.size,key.data,data.size,data.data);
97
98         (void)(dbp->close)(dbp);
99         return;
100 }
101
102 main (argc, argv)
103         int argc;
104         char *argv[];
105 {
106         int ch;
107         int un = 0;
108         int clear = 0;
109         char *infile = NULL;
110         char *map = NULL;
111         char *domain = NULL;
112         char *infilename = NULL;
113         char *outfilename = NULL;
114         char *mastername = NULL;
115         int interdom = 0;
116         int secure = 0;
117         DB *dbp;
118         DBT key, data;
119         char buf[10240];
120         char *keybuf, *datbuf;
121         FILE *ifp;
122         char hname[MAXHOSTNAMELEN + 2];
123
124         while ((ch = getopt(argc, argv, "uhcbsd:i:o:m:")) != -1) {
125                 switch(ch) {
126                 case 'u':
127                         un++;
128                         break;
129                 case 'c':
130                         clear++;
131                         break;
132                 case 'b':
133                         interdom++;
134                         break;
135                 case 's':
136                         secure++;
137                         break;
138                 case 'd':
139                         domain = optarg;
140                         break;
141                 case 'i':
142                         infilename = optarg;
143                         break;
144                 case 'o':
145                         outfilename = optarg;
146                         break;
147                 case 'm':
148                         mastername = optarg;
149                         break;
150                 case 'h':
151                 default:
152                         usage();
153                         break;
154                 }
155         }
156
157         argc -= optind;
158         argv += optind;
159
160         if (un) {
161                 map = argv[0];
162                 if (map == NULL)
163                         usage();
164                 unwind(map);
165                 exit(0);
166
167         }
168
169         infile = argv[0];
170         map = argv[1];
171
172         if (infile == NULL || map == NULL) {
173                 if (clear)
174                         goto doclear;
175                 usage();
176         }
177
178         if (mastername == NULL) {
179                 if (gethostname((char *)&hname, sizeof(hname)) == -1)
180                         err(1, "gethostname() failed");
181                 mastername = (char *)&hname;
182         }
183
184         /*
185          * Note that while we can read from stdin, we can't
186          * write to stdout; the db library doesn't let you
187          * write to a file stream like that.
188          */
189
190         if (!strcmp(infile, "-")) {
191                 ifp = stdin;
192         } else {
193                 if ((ifp = fopen(infile, "r")) == NULL)
194                         err(1, "failed to open %s", infile);
195         }
196
197         if ((dbp = open_db(map, O_RDWR|O_EXLOCK|O_EXCL|O_CREAT)) == NULL)
198                 err(1, "open_db(%s) failed", map);
199
200         if (interdom) {
201                 key.data = "YP_INTERDOMAIN";
202                 key.size = sizeof("YP_INTERDOMAIN") - 1;
203                 data.data = "";
204                 data.size = 0;
205                 yp_put_record(dbp, &key, &data, 0);
206         }
207
208         if (secure) {
209                 key.data = "YP_SECURE";
210                 key.size = sizeof("YP_SECURE") - 1;
211                 data.data = "";
212                 data.size = 0;
213                 yp_put_record(dbp, &key, &data, 0);
214         }
215
216         key.data = "YP_MASTER_NAME";
217         key.size = sizeof("YP_MASTER_NAME") - 1;
218         data.data = mastername;
219         data.size = strlen(mastername);
220         yp_put_record(dbp, &key, &data, 0);
221
222         key.data = "YP_LAST_MODIFIED";
223         key.size = sizeof("YP_LAST_MODIFIED") - 1;
224         snprintf(buf, sizeof(buf), "%lu", time(NULL));
225         data.data = (char *)&buf;
226         data.size = strlen(buf);
227         yp_put_record(dbp, &key, &data, 0);
228
229         if (infilename) {
230                 key.data = "YP_INPUT_FILE";
231                 key.size = sizeof("YP_INPUT_FILE") - 1;
232                 data.data = infilename;
233                 data.size = strlen(infilename);
234                 yp_put_record(dbp, &key, &data, 0);
235         }
236
237         if (outfilename) {
238                 key.data = "YP_OUTPUT_FILE";
239                 key.size = sizeof("YP_OUTPUT_FILE") - 1;
240                 data.data = outfilename;
241                 data.size = strlen(outfilename);
242                 yp_put_record(dbp, &key, &data, 0);
243         }
244
245         if (domain) {
246                 key.data = "YP_DOMAIN_NAME";
247                 key.size = sizeof("YP_DOMAIN_NAME") - 1;
248                 data.data = domain;
249                 data.size = strlen(domain);
250                 yp_put_record(dbp, &key, &data, 0);
251         }
252
253         while(fgets((char *)&buf, sizeof(buf), ifp)) {
254                 char *sep = NULL;
255                 int rval;
256
257                 /* NUL terminate */
258                 if ((sep = strchr(buf, '\n')))
259                         *sep = '\0';
260
261                 /* handle backslash line continuations */
262                 while(buf[strlen(buf) - 1] == '\\') {
263                         fgets((char *)&buf[strlen(buf) - 1],
264                                         sizeof(buf) - strlen(buf), ifp);
265                         if ((sep = strchr(buf, '\n')))
266                                 *sep = '\0';
267                 }
268
269                 /* find the separation between the key and data */
270                 if ((sep = strpbrk(buf, " \t")) == NULL) {
271                         warnx("bad input -- no white space: %s", buf);
272                         continue;
273                 }
274
275                 /* separate the strings */
276                 keybuf = (char *)&buf;
277                 datbuf = sep + 1;
278                 *sep = '\0';
279
280                 /* set datbuf to start at first non-whitespace character */
281                 while (*datbuf == ' ' || *datbuf == '\t')
282                         datbuf++;
283
284                 /* Check for silliness. */
285                 if  (*keybuf == '+' || *keybuf == '-' ||
286                      *datbuf == '+' || *datbuf == '-') {
287                         warnx("bad character at start of line: %s", buf);
288                         continue;
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
329         if (clear) {
330                 char in = 0;
331                 char *out = NULL;
332                 int stat;
333                 if ((stat = callrpc("localhost",YPPROG,YPVERS,YPPROC_CLEAR,
334                         xdr_void, (void *)&in,
335                         xdr_void, (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 }