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
57char *amu_conf_file = "/etc/amd.conf"; /* default amd configuration file */
58char *conf_tag = NULL;		/* default conf file tags to use */
59int usage = 0;
60int use_conf_file = 0;		/* default don't use amd.conf file */
61char *mnttab_file_name = NULL;	/* symbol must be available always */
62
63
64/*
65 * Return the version string (dynamic buffer)
66 */
67char *
68get_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
132static void
133show_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
166void
167get_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