1 /*
2 * Copyright (c) 1997-2014 Erez Zadok
3 * Copyright (c) 1990 Jan-Simon Pendry
4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *
36 * File: am-utils/amd/get_args.c
37 *
38 */
39
40 /*
41 * Argument decode
42 */
43
44 #ifdef HAVE_CONFIG_H
45 # include <config.h>
46 #endif /* HAVE_CONFIG_H */
47 #include <am_defs.h>
48 #include <amd.h>
49
50 /* include auto-generated version file */
51 #include <build_version.h>
52
53 char *amu_conf_file = "/etc/amd.conf"; /* default amd configuration file */
54 char *conf_tag = NULL; /* default conf file tags to use */
55 int usage = 0;
56 int use_conf_file = 0; /* default don't use amd.conf file */
57 char *mnttab_file_name = NULL; /* symbol must be available always */
58
59
60 /*
61 * Return the version string (dynamic buffer)
62 */
63 char *
get_version_string(void)64 get_version_string(void)
65 {
66 char *vers = NULL;
67 char tmpbuf[1024];
68 char *wire_buf;
69 int wire_buf_len = 0;
70 size_t len; /* max allocated length (to avoid buf overflow) */
71
72 /*
73 * First get dynamic string listing all known networks.
74 * This could be a long list, if host has lots of interfaces.
75 */
76 wire_buf = print_wires();
77 if (wire_buf)
78 wire_buf_len = strlen(wire_buf);
79
80 len = 2048 + wire_buf_len;
81 vers = xmalloc(len);
82 xsnprintf(vers, len, "%s\n%s\n%s\n%s\n",
83 "Copyright (c) 1997-2014 Erez Zadok",
84 "Copyright (c) 1990 Jan-Simon Pendry",
85 "Copyright (c) 1990 Imperial College of Science, Technology & Medicine",
86 "Copyright (c) 1990 The Regents of the University of California.");
87 xsnprintf(tmpbuf, sizeof(tmpbuf), "%s version %s (build %d).\n",
88 PACKAGE_NAME, PACKAGE_VERSION, AMU_BUILD_VERSION);
89 xstrlcat(vers, tmpbuf, len);
90 xsnprintf(tmpbuf, sizeof(tmpbuf), "Report bugs to %s.\n", PACKAGE_BUGREPORT);
91 xstrlcat(vers, tmpbuf, len);
92 #if 0
93 /*
94 * XXX This block (between from the #if 0 to #endif was in the
95 * XXX original was in the original merge however in the interest
96 * XXX of reproduceable builds and the fact that this is redundant
97 * XXX information, it is effectively removed.
98 */
99 xsnprintf(tmpbuf, sizeof(tmpbuf), "Configured by %s@%s on date %s.\n",
100 USER_NAME, HOST_NAME, CONFIG_DATE);
101 xstrlcat(vers, tmpbuf, len);
102 xsnprintf(tmpbuf, sizeof(tmpbuf), "Built by %s@%s on date %s.\n",
103 BUILD_USER, BUILD_HOST, BUILD_DATE);
104 xstrlcat(vers, tmpbuf, len);
105 #endif
106 xsnprintf(tmpbuf, sizeof(tmpbuf), "cpu=%s (%s-endian), arch=%s, karch=%s.\n",
107 cpu, endian, gopt.arch, gopt.karch);
108 xstrlcat(vers, tmpbuf, len);
109 xsnprintf(tmpbuf, sizeof(tmpbuf), "full_os=%s, os=%s, osver=%s, vendor=%s, distro=%s.\n",
110 gopt.op_sys_full, gopt.op_sys, gopt.op_sys_ver, gopt.op_sys_vendor, DISTRO_NAME);
111 xstrlcat(vers, tmpbuf, len);
112 xsnprintf(tmpbuf, sizeof(tmpbuf), "domain=%s, host=%s, hostd=%s.\n",
113 hostdomain, am_get_hostname(), hostd);
114 xstrlcat(vers, tmpbuf, len);
115
116 xstrlcat(vers, "Map support for: ", len);
117 mapc_showtypes(tmpbuf, sizeof(tmpbuf));
118 xstrlcat(vers, tmpbuf, len);
119 xstrlcat(vers, ".\nAMFS: ", len);
120 ops_showamfstypes(tmpbuf, sizeof(tmpbuf));
121 xstrlcat(vers, tmpbuf, len);
122 xstrlcat(vers, ", inherit.\nFS: ", len); /* hack: "show" that we support type:=inherit */
123 ops_showfstypes(tmpbuf, sizeof(tmpbuf));
124 xstrlcat(vers, tmpbuf, len);
125
126 /* append list of networks if available */
127 if (wire_buf) {
128 xstrlcat(vers, wire_buf, len);
129 XFREE(wire_buf);
130 }
131
132 return vers;
133 }
134
135
136 static void
show_usage(void)137 show_usage(void)
138 {
139 fprintf(stderr,
140 "Usage: %s [-nprvHS] [-a mount_point] [-c cache_time] [-d domain]\n\
141 \t[-k kernel_arch] [-l logfile%s\n\
142 \t[-t timeout.retrans] [-w wait_timeout] [-A arch] [-C cluster_name]\n\
143 \t[-o op_sys_ver] [-O op_sys_name]\n\
144 \t[-F conf_file] [-T conf_tag]", am_get_progname(),
145 #ifdef HAVE_SYSLOG
146 # ifdef LOG_DAEMON
147 "|\"syslog[:facility]\"]"
148 # else /* not LOG_DAEMON */
149 "|\"syslog\"]"
150 # endif /* not LOG_DAEMON */
151 #else /* not HAVE_SYSLOG */
152 "]"
153 #endif /* not HAVE_SYSLOG */
154 );
155
156 #ifdef HAVE_MAP_NIS
157 fputs(" [-y nis-domain]\n", stderr);
158 #else /* not HAVE_MAP_NIS */
159 fputc('\n', stderr);
160 #endif /* HAVE_MAP_NIS */
161
162 show_opts('x', xlog_opt);
163 #ifdef DEBUG
164 show_opts('D', dbg_opt);
165 #endif /* DEBUG */
166 fprintf(stderr, "\t[directory mapname [-map_options]] ...\n");
167 }
168
169
170 void
get_args(int argc,char * argv[])171 get_args(int argc, char *argv[])
172 {
173 int opt_ch, i;
174 FILE *fp = stdin;
175 char getopt_arguments[] = "+nprvSa:c:d:k:l:o:t:w:x:y:C:D:F:T:O:HA:";
176 char *getopt_args;
177 int print_version = 0; /* 1 means we should print version info */
178
179 #ifdef HAVE_GNU_GETOPT
180 getopt_args = getopt_arguments;
181 #else /* ! HAVE_GNU_GETOPT */
182 getopt_args = &getopt_arguments[1];
183 #endif /* HAVE_GNU_GETOPT */
184
185 /* if no arguments were passed, try to use /etc/amd.conf file */
186 if (argc <= 1)
187 use_conf_file = 1;
188
189 while ((opt_ch = getopt(argc, argv, getopt_args)) != -1)
190 switch (opt_ch) {
191
192 case 'a':
193 if (*optarg != '/') {
194 fprintf(stderr, "%s: -a option must begin with a '/'\n",
195 am_get_progname());
196 exit(1);
197 }
198 gopt.auto_dir = optarg;
199 break;
200
201 case 'c':
202 gopt.am_timeo = atoi(optarg);
203 if (gopt.am_timeo <= 0)
204 gopt.am_timeo = AM_TTL;
205 break;
206
207 case 'd':
208 gopt.sub_domain = optarg;
209 break;
210
211 case 'k':
212 gopt.karch = optarg;
213 break;
214
215 case 'l':
216 gopt.logfile = optarg;
217 break;
218
219 case 'n':
220 gopt.flags |= CFM_NORMALIZE_HOSTNAMES;
221 break;
222
223 case 'o':
224 gopt.op_sys_ver = optarg;
225 break;
226
227 case 'p':
228 gopt.flags |= CFM_PRINT_PID;
229 break;
230
231 case 'r':
232 gopt.flags |= CFM_RESTART_EXISTING_MOUNTS;
233 break;
234
235 case 't':
236 /* timeo.retrans (also affects toplvl mounts) */
237 {
238 char *dot = strchr(optarg, '.');
239 int i;
240 if (dot)
241 *dot = '\0';
242 if (*optarg) {
243 for (i=0; i<AMU_TYPE_MAX; ++i)
244 gopt.amfs_auto_timeo[i] = atoi(optarg);
245 }
246 if (dot) {
247 for (i=0; i<AMU_TYPE_MAX; ++i)
248 gopt.amfs_auto_retrans[i] = atoi(dot + 1);
249 *dot = '.';
250 }
251 }
252 break;
253
254 case 'v':
255 /*
256 * defer to print version info after every variable had been
257 * initialized.
258 */
259 print_version++;
260 break;
261
262 case 'w':
263 gopt.am_timeo_w = atoi(optarg);
264 if (gopt.am_timeo_w <= 0)
265 gopt.am_timeo_w = AM_TTL_W;
266 break;
267
268 case 'x':
269 usage += switch_option(optarg);
270 break;
271
272 case 'y':
273 #ifdef HAVE_MAP_NIS
274 gopt.nis_domain = optarg;
275 #else /* not HAVE_MAP_NIS */
276 plog(XLOG_USER, "-y: option ignored. No NIS support available.");
277 #endif /* not HAVE_MAP_NIS */
278 break;
279
280 case 'A':
281 gopt.arch = optarg;
282 break;
283
284 case 'C':
285 gopt.cluster = optarg;
286 break;
287
288 case 'D':
289 #ifdef DEBUG
290 usage += debug_option(optarg);
291 #else /* not DEBUG */
292 fprintf(stderr, "%s: not compiled with DEBUG option -- sorry.\n",
293 am_get_progname());
294 #endif /* not DEBUG */
295 break;
296
297 case 'F':
298 amu_conf_file = optarg;
299 use_conf_file = 1;
300 break;
301
302 case 'H':
303 show_usage();
304 exit(1);
305 break;
306
307 case 'O':
308 gopt.op_sys = optarg;
309 break;
310
311 case 'S':
312 gopt.flags &= ~CFM_PROCESS_LOCK; /* turn process locking off */
313 break;
314
315 case 'T':
316 conf_tag = optarg;
317 break;
318
319 default:
320 usage = 1;
321 break;
322 }
323
324 /*
325 * amd.conf file: if not command-line arguments were used, or if -F was
326 * specified, then use that amd.conf file. If the file cannot be opened,
327 * abort amd. If it can be found, open it, parse it, and then close it.
328 */
329 if (use_conf_file && amu_conf_file) {
330 fp = fopen(amu_conf_file, "r");
331 if (!fp) {
332 char buf[128];
333 xsnprintf(buf, sizeof(buf), "Amd configuration file (%s)",
334 amu_conf_file);
335 perror(buf);
336 exit(1);
337 }
338 conf_in = fp;
339 conf_parse();
340 fclose(fp);
341 if (process_all_regular_maps() != 0)
342 exit(1);
343 }
344
345 #ifdef DEBUG
346 usage += switch_option("debug");
347 /* initialize debug options */
348 if (!debug_flags)
349 debug_flags = D_CONTROL; /* CONTROL = "daemon,amq,fork" */
350 #endif /* DEBUG */
351
352 /* log information regarding amd.conf file */
353 if (use_conf_file && amu_conf_file)
354 plog(XLOG_INFO, "using configuration file %s", amu_conf_file);
355
356 #ifdef HAVE_MAP_LDAP
357 /* ensure that if ldap_base is specified, that also ldap_hostports is */
358 if (gopt.ldap_hostports && !gopt.ldap_base) {
359 fprintf(stderr, "must specify both ldap_hostports and ldap_base\n");
360 exit(1);
361 }
362 #endif /* HAVE_MAP_LDAP */
363
364 if (usage) {
365 show_usage();
366 exit(1);
367 }
368
369 while (optind <= argc - 2) {
370 char *dir = argv[optind++];
371 char *map = argv[optind++];
372 char *opts = "";
373 if (argv[optind] && *argv[optind] == '-')
374 opts = &argv[optind++][1];
375
376 root_newmap(dir, opts, map, NULL);
377 }
378
379 if (optind == argc) {
380 /*
381 * Append domain name to hostname.
382 * sub_domain overrides hostdomain
383 * if given.
384 */
385 if (gopt.sub_domain)
386 hostdomain = gopt.sub_domain;
387 if (*hostdomain == '.')
388 hostdomain++;
389 xstrlcat(hostd, ".", sizeof(hostd));
390 xstrlcat(hostd, hostdomain, sizeof(hostd));
391
392 #ifdef MOUNT_TABLE_ON_FILE
393 if (amuDebug(D_MTAB))
394 if (gopt.debug_mtab_file)
395 mnttab_file_name = gopt.debug_mtab_file; /* user supplied debug mtab path */
396 else
397 mnttab_file_name = DEBUG_MNTTAB_FILE; /* default debug mtab path */
398 else
399 mnttab_file_name = MNTTAB_FILE_NAME;
400 #else /* not MOUNT_TABLE_ON_FILE */
401 if (amuDebug(D_MTAB))
402 dlog("-D mtab option ignored");
403 # ifdef MNTTAB_FILE_NAME
404 mnttab_file_name = MNTTAB_FILE_NAME;
405 # endif /* MNTTAB_FILE_NAME */
406 #endif /* not MOUNT_TABLE_ON_FILE */
407
408 /*
409 * If the kernel architecture was not specified
410 * then use the machine architecture.
411 */
412 if (gopt.karch == NULL)
413 gopt.karch = gopt.arch;
414
415 if (gopt.cluster == NULL)
416 gopt.cluster = hostdomain;
417
418 /* sanity checking, normalize values just in case (toplvl too) */
419 for (i=0; i<AMU_TYPE_MAX; ++i) {
420 if (gopt.amfs_auto_timeo[i] == 0)
421 gopt.amfs_auto_timeo[i] = AMFS_AUTO_TIMEO;
422 if (gopt.amfs_auto_retrans[i] == 0)
423 gopt.amfs_auto_retrans[i] = AMFS_AUTO_RETRANS(i);
424 if (gopt.amfs_auto_retrans[i] == 0)
425 gopt.amfs_auto_retrans[i] = 3; /* under very unusual circumstances, could be zero */
426 }
427 }
428
429 /* finally print version string and exit, if asked for */
430 if (print_version) {
431 fputs(get_version_string(), stderr);
432 exit(0);
433 }
434
435 if (switch_to_logfile(gopt.logfile, orig_umask,
436 (gopt.flags & CFM_TRUNCATE_LOG)) != 0)
437 plog(XLOG_USER, "Cannot switch logfile");
438
439 return;
440 }
441