1 /*
2 * Copyright (c) 1997-2006 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. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgment:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *
40 * File: am-utils/amd/get_args.c
41 *
42 */
43
44 /*
45 * Argument decode
46 */
47
48 #ifdef HAVE_CONFIG_H
49 # include <config.h>
50 #endif /* HAVE_CONFIG_H */
51 #include <am_defs.h>
52 #include <amd.h>
53
54 /* include auto-generated version file */
55 #include <build_version.h>
56
57 char *amu_conf_file = "/etc/amd.conf"; /* default amd configuration file */
58 char *conf_tag = NULL; /* default conf file tags to use */
59 int usage = 0;
60 int use_conf_file = 0; /* default don't use amd.conf file */
61 char *mnttab_file_name = NULL; /* symbol must be available always */
62
63
64 /*
65 * Return the version string (dynamic buffer)
66 */
67 char *
get_version_string(void)68 get_version_string(void)
69 {
70 char *vers = NULL;
71 char tmpbuf[1024];
72 char *wire_buf;
73 int wire_buf_len = 0;
74 size_t len; /* max allocated length (to avoid buf overflow) */
75
76 /*
77 * First get dynamic string listing all known networks.
78 * This could be a long list, if host has lots of interfaces.
79 */
80 wire_buf = print_wires();
81 if (wire_buf)
82 wire_buf_len = strlen(wire_buf);
83
84 len = 2048 + wire_buf_len;
85 vers = xmalloc(len);
86 xsnprintf(vers, len, "%s\n%s\n%s\n%s\n",
87 "Copyright (c) 1997-2006 Erez Zadok",
88 "Copyright (c) 1990 Jan-Simon Pendry",
89 "Copyright (c) 1990 Imperial College of Science, Technology & Medicine",
90 "Copyright (c) 1990 The Regents of the University of California.");
91 xsnprintf(tmpbuf, sizeof(tmpbuf), "%s version %s (build %d).\n",
92 PACKAGE_NAME, PACKAGE_VERSION, AMU_BUILD_VERSION);
93 strlcat(vers, tmpbuf, len);
94 xsnprintf(tmpbuf, sizeof(tmpbuf), "Report bugs to %s.\n", PACKAGE_BUGREPORT);
95 strlcat(vers, tmpbuf, len);
96 xsnprintf(tmpbuf, sizeof(tmpbuf), "Configured by %s@%s on date %s.\n",
97 USER_NAME, HOST_NAME, CONFIG_DATE);
98 strlcat(vers, tmpbuf, len);
99 xsnprintf(tmpbuf, sizeof(tmpbuf), "Built by %s@%s.\n",
100 BUILD_USER, BUILD_HOST);
101 strlcat(vers, tmpbuf, len);
102 xsnprintf(tmpbuf, sizeof(tmpbuf), "cpu=%s (%s-endian), arch=%s, karch=%s.\n",
103 cpu, endian, gopt.arch, gopt.karch);
104 strlcat(vers, tmpbuf, len);
105 xsnprintf(tmpbuf, sizeof(tmpbuf), "full_os=%s, os=%s, osver=%s, vendor=%s, distro=%s.\n",
106 gopt.op_sys_full, gopt.op_sys, gopt.op_sys_ver, gopt.op_sys_vendor, DISTRO_NAME);
107 strlcat(vers, tmpbuf, len);
108 xsnprintf(tmpbuf, sizeof(tmpbuf), "domain=%s, host=%s, hostd=%s.\n",
109 hostdomain, am_get_hostname(), hostd);
110 strlcat(vers, tmpbuf, len);
111
112 strlcat(vers, "Map support for: ", len);
113 mapc_showtypes(tmpbuf, sizeof(tmpbuf));
114 strlcat(vers, tmpbuf, len);
115 strlcat(vers, ".\nAMFS: ", len);
116 ops_showamfstypes(tmpbuf, sizeof(tmpbuf));
117 strlcat(vers, tmpbuf, len);
118 strlcat(vers, ", inherit.\nFS: ", len); /* hack: "show" that we support type:=inherit */
119 ops_showfstypes(tmpbuf, sizeof(tmpbuf));
120 strlcat(vers, tmpbuf, len);
121
122 /* append list of networks if available */
123 if (wire_buf) {
124 strlcat(vers, wire_buf, len);
125 XFREE(wire_buf);
126 }
127
128 return vers;
129 }
130
131
132 static void
show_usage(void)133 show_usage(void)
134 {
135 fprintf(stderr,
136 "Usage: %s [-nprvHS] [-a mount_point] [-c cache_time] [-d domain]\n\
137 \t[-k kernel_arch] [-l logfile%s\n\
138 \t[-t timeout.retrans] [-w wait_timeout] [-A arch] [-C cluster_name]\n\
139 \t[-o op_sys_ver] [-O op_sys_name]\n\
140 \t[-F conf_file] [-T conf_tag]", am_get_progname(),
141 #ifdef HAVE_SYSLOG
142 # ifdef LOG_DAEMON
143 "|\"syslog[:facility]\"]"
144 # else /* not LOG_DAEMON */
145 "|\"syslog\"]"
146 # endif /* not LOG_DAEMON */
147 #else /* not HAVE_SYSLOG */
148 "]"
149 #endif /* not HAVE_SYSLOG */
150 );
151
152 #ifdef HAVE_MAP_NIS
153 fputs(" [-y nis-domain]\n", stderr);
154 #else /* not HAVE_MAP_NIS */
155 fputc('\n', stderr);
156 #endif /* HAVE_MAP_NIS */
157
158 show_opts('x', xlog_opt);
159 #ifdef DEBUG
160 show_opts('D', dbg_opt);
161 #endif /* DEBUG */
162 fprintf(stderr, "\t[directory mapname [-map_options]] ...\n");
163 }
164
165
166 void
get_args(int argc,char * argv[])167 get_args(int argc, char *argv[])
168 {
169 int opt_ch, i;
170 FILE *fp = stdin;
171 char getopt_arguments[] = "+nprvSa:c:d:k:l:o:t:w:x:y:C:D:F:T:O:HA:";
172 char *getopt_args;
173 int print_version = 0; /* 1 means we should print version info */
174
175 #ifdef HAVE_GNU_GETOPT
176 getopt_args = getopt_arguments;
177 #else /* ! HAVE_GNU_GETOPT */
178 getopt_args = &getopt_arguments[1];
179 #endif /* HAVE_GNU_GETOPT */
180
181 /* if no arguments were passed, try to use /etc/amd.conf file */
182 if (argc <= 1)
183 use_conf_file = 1;
184
185 while ((opt_ch = getopt(argc, argv, getopt_args)) != -1)
186 switch (opt_ch) {
187
188 case 'a':
189 if (*optarg != '/') {
190 fprintf(stderr, "%s: -a option must begin with a '/'\n",
191 am_get_progname());
192 exit(1);
193 }
194 gopt.auto_dir = optarg;
195 break;
196
197 case 'c':
198 gopt.am_timeo = atoi(optarg);
199 if (gopt.am_timeo <= 0)
200 gopt.am_timeo = AM_TTL;
201 break;
202
203 case 'd':
204 gopt.sub_domain = optarg;
205 break;
206
207 case 'k':
208 gopt.karch = optarg;
209 break;
210
211 case 'l':
212 gopt.logfile = optarg;
213 break;
214
215 case 'n':
216 gopt.flags |= CFM_NORMALIZE_HOSTNAMES;
217 break;
218
219 case 'o':
220 gopt.op_sys_ver = optarg;
221 break;
222
223 case 'p':
224 gopt.flags |= CFM_PRINT_PID;
225 break;
226
227 case 'r':
228 gopt.flags |= CFM_RESTART_EXISTING_MOUNTS;
229 break;
230
231 case 't':
232 /* timeo.retrans (also affects toplvl mounts) */
233 {
234 char *dot = strchr(optarg, '.');
235 int i;
236 if (dot)
237 *dot = '\0';
238 if (*optarg) {
239 for (i=0; i<AMU_TYPE_MAX; ++i)
240 gopt.amfs_auto_timeo[i] = atoi(optarg);
241 }
242 if (dot) {
243 for (i=0; i<AMU_TYPE_MAX; ++i)
244 gopt.amfs_auto_retrans[i] = atoi(dot + 1);
245 *dot = '.';
246 }
247 }
248 break;
249
250 case 'v':
251 /*
252 * defer to print version info after every variable had been
253 * initialized.
254 */
255 print_version++;
256 break;
257
258 case 'w':
259 gopt.am_timeo_w = atoi(optarg);
260 if (gopt.am_timeo_w <= 0)
261 gopt.am_timeo_w = AM_TTL_W;
262 break;
263
264 case 'x':
265 usage += switch_option(optarg);
266 break;
267
268 case 'y':
269 #ifdef HAVE_MAP_NIS
270 gopt.nis_domain = optarg;
271 #else /* not HAVE_MAP_NIS */
272 plog(XLOG_USER, "-y: option ignored. No NIS support available.");
273 #endif /* not HAVE_MAP_NIS */
274 break;
275
276 case 'A':
277 gopt.arch = optarg;
278 break;
279
280 case 'C':
281 gopt.cluster = optarg;
282 break;
283
284 case 'D':
285 #ifdef DEBUG
286 usage += debug_option(optarg);
287 #else /* not DEBUG */
288 fprintf(stderr, "%s: not compiled with DEBUG option -- sorry.\n",
289 am_get_progname());
290 #endif /* not DEBUG */
291 break;
292
293 case 'F':
294 amu_conf_file = optarg;
295 use_conf_file = 1;
296 break;
297
298 case 'H':
299 show_usage();
300 exit(1);
301 break;
302
303 case 'O':
304 gopt.op_sys = optarg;
305 break;
306
307 case 'S':
308 gopt.flags &= ~CFM_PROCESS_LOCK; /* turn process locking off */
309 break;
310
311 case 'T':
312 conf_tag = optarg;
313 break;
314
315 default:
316 usage = 1;
317 break;
318 }
319
320 /*
321 * amd.conf file: if not command-line arguments were used, or if -F was
322 * specified, then use that amd.conf file. If the file cannot be opened,
323 * abort amd. If it can be found, open it, parse it, and then close it.
324 */
325 if (use_conf_file && amu_conf_file) {
326 fp = fopen(amu_conf_file, "r");
327 if (!fp) {
328 char buf[128];
329 xsnprintf(buf, sizeof(buf), "Amd configuration file (%s)",
330 amu_conf_file);
331 perror(buf);
332 exit(1);
333 }
334 yyin = fp;
335 yyparse();
336 fclose(fp);
337 if (process_all_regular_maps() != 0)
338 exit(1);
339 }
340
341 /* make sure there are some default options defined */
342 if (xlog_level_init == ~0) {
343 switch_option("");
344 }
345 #ifdef DEBUG
346 usage += switch_option("debug");
347 #endif /* DEBUG */
348
349 /* log information regarding amd.conf file */
350 if (use_conf_file && amu_conf_file)
351 plog(XLOG_INFO, "using configuration file %s", amu_conf_file);
352
353 #ifdef HAVE_MAP_LDAP
354 /* ensure that if ldap_base is specified, that also ldap_hostports is */
355 if (gopt.ldap_hostports && !gopt.ldap_base) {
356 fprintf(stderr, "must specify both ldap_hostports and ldap_base\n");
357 exit(1);
358 }
359 #endif /* HAVE_MAP_LDAP */
360
361 if (usage) {
362 show_usage();
363 exit(1);
364 }
365
366 while (optind <= argc - 2) {
367 char *dir = argv[optind++];
368 char *map = argv[optind++];
369 char *opts = "";
370 if (argv[optind] && *argv[optind] == '-')
371 opts = &argv[optind++][1];
372
373 root_newmap(dir, opts, map, NULL);
374 }
375
376 if (optind == argc) {
377 /*
378 * Append domain name to hostname.
379 * sub_domain overrides hostdomain
380 * if given.
381 */
382 if (gopt.sub_domain)
383 hostdomain = gopt.sub_domain;
384 if (*hostdomain == '.')
385 hostdomain++;
386 xstrlcat(hostd, ".", sizeof(hostd));
387 xstrlcat(hostd, hostdomain, sizeof(hostd));
388
389 #ifdef MOUNT_TABLE_ON_FILE
390 if (amuDebug(D_MTAB))
391 if (gopt.debug_mtab_file)
392 mnttab_file_name = gopt.debug_mtab_file; /* user supplied debug mtab path */
393 else
394 mnttab_file_name = DEBUG_MNTTAB_FILE; /* default debug mtab path */
395 else
396 mnttab_file_name = MNTTAB_FILE_NAME;
397 #else /* not MOUNT_TABLE_ON_FILE */
398 if (amuDebug(D_MTAB))
399 dlog("-D mtab option ignored");
400 # ifdef MNTTAB_FILE_NAME
401 mnttab_file_name = MNTTAB_FILE_NAME;
402 # endif /* MNTTAB_FILE_NAME */
403 #endif /* not MOUNT_TABLE_ON_FILE */
404
405 /*
406 * If the kernel architecture was not specified
407 * then use the machine architecture.
408 */
409 if (gopt.karch == NULL)
410 gopt.karch = gopt.arch;
411
412 if (gopt.cluster == NULL)
413 gopt.cluster = hostdomain;
414
415 /* sanity checking, normalize values just in case (toplvl too) */
416 for (i=0; i<AMU_TYPE_MAX; ++i) {
417 if (gopt.amfs_auto_timeo[i] == 0)
418 gopt.amfs_auto_timeo[i] = AMFS_AUTO_TIMEO;
419 if (gopt.amfs_auto_retrans[i] == 0)
420 gopt.amfs_auto_retrans[i] = AMFS_AUTO_RETRANS(i);
421 if (gopt.amfs_auto_retrans[i] == 0)
422 gopt.amfs_auto_retrans[i] = 3; /* under very unusual circumstances, could be zero */
423 }
424 }
425
426 /* finally print version string and exit, if asked for */
427 if (print_version) {
428 fputs(get_version_string(), stderr);
429 exit(0);
430 }
431
432 if (switch_to_logfile(gopt.logfile, orig_umask,
433 (gopt.flags & CFM_TRUNCATE_LOG)) != 0)
434 plog(XLOG_USER, "Cannot switch logfile");
435
436 return;
437 }
438