get_args.c revision 310490
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 53char *amu_conf_file = "/etc/amd.conf"; /* default amd configuration file */ 54char *conf_tag = NULL; /* default conf file tags to use */ 55int usage = 0; 56int use_conf_file = 0; /* default don't use amd.conf file */ 57char *mnttab_file_name = NULL; /* symbol must be available always */ 58 59 60/* 61 * Return the version string (dynamic buffer) 62 */ 63char * 64get_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), "Configured by %s@%s on date %s.\n", 107 USER_NAME, HOST_NAME, CONFIG_DATE); 108 strlcat(vers, tmpbuf, len); 109 xsnprintf(tmpbuf, sizeof(tmpbuf), "Built by %s@%s.\n", 110 BUILD_USER, BUILD_HOST); 111 strlcat(vers, tmpbuf, len); 112 xsnprintf(tmpbuf, sizeof(tmpbuf), "cpu=%s (%s-endian), arch=%s, karch=%s.\n", 113 cpu, endian, gopt.arch, gopt.karch); 114 xstrlcat(vers, tmpbuf, len); 115 xsnprintf(tmpbuf, sizeof(tmpbuf), "full_os=%s, os=%s, osver=%s, vendor=%s, distro=%s.\n", 116 gopt.op_sys_full, gopt.op_sys, gopt.op_sys_ver, gopt.op_sys_vendor, DISTRO_NAME); 117 xstrlcat(vers, tmpbuf, len); 118 xsnprintf(tmpbuf, sizeof(tmpbuf), "domain=%s, host=%s, hostd=%s.\n", 119 hostdomain, am_get_hostname(), hostd); 120 xstrlcat(vers, tmpbuf, len); 121 122 xstrlcat(vers, "Map support for: ", len); 123 mapc_showtypes(tmpbuf, sizeof(tmpbuf)); 124 xstrlcat(vers, tmpbuf, len); 125 xstrlcat(vers, ".\nAMFS: ", len); 126 ops_showamfstypes(tmpbuf, sizeof(tmpbuf)); 127 xstrlcat(vers, tmpbuf, len); 128 xstrlcat(vers, ", inherit.\nFS: ", len); /* hack: "show" that we support type:=inherit */ 129 ops_showfstypes(tmpbuf, sizeof(tmpbuf)); 130 xstrlcat(vers, tmpbuf, len); 131 132 /* append list of networks if available */ 133 if (wire_buf) { 134 xstrlcat(vers, wire_buf, len); 135 XFREE(wire_buf); 136 } 137 138 return vers; 139} 140 141 142static void 143show_usage(void) 144{ 145 fprintf(stderr, 146 "Usage: %s [-nprvHS] [-a mount_point] [-c cache_time] [-d domain]\n\ 147\t[-k kernel_arch] [-l logfile%s\n\ 148\t[-t timeout.retrans] [-w wait_timeout] [-A arch] [-C cluster_name]\n\ 149\t[-o op_sys_ver] [-O op_sys_name]\n\ 150\t[-F conf_file] [-T conf_tag]", am_get_progname(), 151#ifdef HAVE_SYSLOG 152# ifdef LOG_DAEMON 153 "|\"syslog[:facility]\"]" 154# else /* not LOG_DAEMON */ 155 "|\"syslog\"]" 156# endif /* not LOG_DAEMON */ 157#else /* not HAVE_SYSLOG */ 158 "]" 159#endif /* not HAVE_SYSLOG */ 160 ); 161 162#ifdef HAVE_MAP_NIS 163 fputs(" [-y nis-domain]\n", stderr); 164#else /* not HAVE_MAP_NIS */ 165 fputc('\n', stderr); 166#endif /* HAVE_MAP_NIS */ 167 168 show_opts('x', xlog_opt); 169#ifdef DEBUG 170 show_opts('D', dbg_opt); 171#endif /* DEBUG */ 172 fprintf(stderr, "\t[directory mapname [-map_options]] ...\n"); 173} 174 175 176void 177get_args(int argc, char *argv[]) 178{ 179 int opt_ch, i; 180 FILE *fp = stdin; 181 char getopt_arguments[] = "+nprvSa:c:d:k:l:o:t:w:x:y:C:D:F:T:O:HA:"; 182 char *getopt_args; 183 int print_version = 0; /* 1 means we should print version info */ 184 185#ifdef HAVE_GNU_GETOPT 186 getopt_args = getopt_arguments; 187#else /* ! HAVE_GNU_GETOPT */ 188 getopt_args = &getopt_arguments[1]; 189#endif /* HAVE_GNU_GETOPT */ 190 191 /* if no arguments were passed, try to use /etc/amd.conf file */ 192 if (argc <= 1) 193 use_conf_file = 1; 194 195 while ((opt_ch = getopt(argc, argv, getopt_args)) != -1) 196 switch (opt_ch) { 197 198 case 'a': 199 if (*optarg != '/') { 200 fprintf(stderr, "%s: -a option must begin with a '/'\n", 201 am_get_progname()); 202 exit(1); 203 } 204 gopt.auto_dir = optarg; 205 break; 206 207 case 'c': 208 gopt.am_timeo = atoi(optarg); 209 if (gopt.am_timeo <= 0) 210 gopt.am_timeo = AM_TTL; 211 break; 212 213 case 'd': 214 gopt.sub_domain = optarg; 215 break; 216 217 case 'k': 218 gopt.karch = optarg; 219 break; 220 221 case 'l': 222 gopt.logfile = optarg; 223 break; 224 225 case 'n': 226 gopt.flags |= CFM_NORMALIZE_HOSTNAMES; 227 break; 228 229 case 'o': 230 gopt.op_sys_ver = optarg; 231 break; 232 233 case 'p': 234 gopt.flags |= CFM_PRINT_PID; 235 break; 236 237 case 'r': 238 gopt.flags |= CFM_RESTART_EXISTING_MOUNTS; 239 break; 240 241 case 't': 242 /* timeo.retrans (also affects toplvl mounts) */ 243 { 244 char *dot = strchr(optarg, '.'); 245 int i; 246 if (dot) 247 *dot = '\0'; 248 if (*optarg) { 249 for (i=0; i<AMU_TYPE_MAX; ++i) 250 gopt.amfs_auto_timeo[i] = atoi(optarg); 251 } 252 if (dot) { 253 for (i=0; i<AMU_TYPE_MAX; ++i) 254 gopt.amfs_auto_retrans[i] = atoi(dot + 1); 255 *dot = '.'; 256 } 257 } 258 break; 259 260 case 'v': 261 /* 262 * defer to print version info after every variable had been 263 * initialized. 264 */ 265 print_version++; 266 break; 267 268 case 'w': 269 gopt.am_timeo_w = atoi(optarg); 270 if (gopt.am_timeo_w <= 0) 271 gopt.am_timeo_w = AM_TTL_W; 272 break; 273 274 case 'x': 275 usage += switch_option(optarg); 276 break; 277 278 case 'y': 279#ifdef HAVE_MAP_NIS 280 gopt.nis_domain = optarg; 281#else /* not HAVE_MAP_NIS */ 282 plog(XLOG_USER, "-y: option ignored. No NIS support available."); 283#endif /* not HAVE_MAP_NIS */ 284 break; 285 286 case 'A': 287 gopt.arch = optarg; 288 break; 289 290 case 'C': 291 gopt.cluster = optarg; 292 break; 293 294 case 'D': 295#ifdef DEBUG 296 usage += debug_option(optarg); 297#else /* not DEBUG */ 298 fprintf(stderr, "%s: not compiled with DEBUG option -- sorry.\n", 299 am_get_progname()); 300#endif /* not DEBUG */ 301 break; 302 303 case 'F': 304 amu_conf_file = optarg; 305 use_conf_file = 1; 306 break; 307 308 case 'H': 309 show_usage(); 310 exit(1); 311 break; 312 313 case 'O': 314 gopt.op_sys = optarg; 315 break; 316 317 case 'S': 318 gopt.flags &= ~CFM_PROCESS_LOCK; /* turn process locking off */ 319 break; 320 321 case 'T': 322 conf_tag = optarg; 323 break; 324 325 default: 326 usage = 1; 327 break; 328 } 329 330 /* 331 * amd.conf file: if not command-line arguments were used, or if -F was 332 * specified, then use that amd.conf file. If the file cannot be opened, 333 * abort amd. If it can be found, open it, parse it, and then close it. 334 */ 335 if (use_conf_file && amu_conf_file) { 336 fp = fopen(amu_conf_file, "r"); 337 if (!fp) { 338 char buf[128]; 339 xsnprintf(buf, sizeof(buf), "Amd configuration file (%s)", 340 amu_conf_file); 341 perror(buf); 342 exit(1); 343 } 344 conf_in = fp; 345 conf_parse(); 346 fclose(fp); 347 if (process_all_regular_maps() != 0) 348 exit(1); 349 } 350 351#ifdef DEBUG 352 usage += switch_option("debug"); 353 /* initialize debug options */ 354 if (!debug_flags) 355 debug_flags = D_CONTROL; /* CONTROL = "daemon,amq,fork" */ 356#endif /* DEBUG */ 357 358 /* log information regarding amd.conf file */ 359 if (use_conf_file && amu_conf_file) 360 plog(XLOG_INFO, "using configuration file %s", amu_conf_file); 361 362#ifdef HAVE_MAP_LDAP 363 /* ensure that if ldap_base is specified, that also ldap_hostports is */ 364 if (gopt.ldap_hostports && !gopt.ldap_base) { 365 fprintf(stderr, "must specify both ldap_hostports and ldap_base\n"); 366 exit(1); 367 } 368#endif /* HAVE_MAP_LDAP */ 369 370 if (usage) { 371 show_usage(); 372 exit(1); 373 } 374 375 while (optind <= argc - 2) { 376 char *dir = argv[optind++]; 377 char *map = argv[optind++]; 378 char *opts = ""; 379 if (argv[optind] && *argv[optind] == '-') 380 opts = &argv[optind++][1]; 381 382 root_newmap(dir, opts, map, NULL); 383 } 384 385 if (optind == argc) { 386 /* 387 * Append domain name to hostname. 388 * sub_domain overrides hostdomain 389 * if given. 390 */ 391 if (gopt.sub_domain) 392 hostdomain = gopt.sub_domain; 393 if (*hostdomain == '.') 394 hostdomain++; 395 xstrlcat(hostd, ".", sizeof(hostd)); 396 xstrlcat(hostd, hostdomain, sizeof(hostd)); 397 398#ifdef MOUNT_TABLE_ON_FILE 399 if (amuDebug(D_MTAB)) 400 if (gopt.debug_mtab_file) 401 mnttab_file_name = gopt.debug_mtab_file; /* user supplied debug mtab path */ 402 else 403 mnttab_file_name = DEBUG_MNTTAB_FILE; /* default debug mtab path */ 404 else 405 mnttab_file_name = MNTTAB_FILE_NAME; 406#else /* not MOUNT_TABLE_ON_FILE */ 407 if (amuDebug(D_MTAB)) 408 dlog("-D mtab option ignored"); 409# ifdef MNTTAB_FILE_NAME 410 mnttab_file_name = MNTTAB_FILE_NAME; 411# endif /* MNTTAB_FILE_NAME */ 412#endif /* not MOUNT_TABLE_ON_FILE */ 413 414 /* 415 * If the kernel architecture was not specified 416 * then use the machine architecture. 417 */ 418 if (gopt.karch == NULL) 419 gopt.karch = gopt.arch; 420 421 if (gopt.cluster == NULL) 422 gopt.cluster = hostdomain; 423 424 /* sanity checking, normalize values just in case (toplvl too) */ 425 for (i=0; i<AMU_TYPE_MAX; ++i) { 426 if (gopt.amfs_auto_timeo[i] == 0) 427 gopt.amfs_auto_timeo[i] = AMFS_AUTO_TIMEO; 428 if (gopt.amfs_auto_retrans[i] == 0) 429 gopt.amfs_auto_retrans[i] = AMFS_AUTO_RETRANS(i); 430 if (gopt.amfs_auto_retrans[i] == 0) 431 gopt.amfs_auto_retrans[i] = 3; /* under very unusual circumstances, could be zero */ 432 } 433 } 434 435 /* finally print version string and exit, if asked for */ 436 if (print_version) { 437 fputs(get_version_string(), stderr); 438 exit(0); 439 } 440 441 if (switch_to_logfile(gopt.logfile, orig_umask, 442 (gopt.flags & CFM_TRUNCATE_LOG)) != 0) 443 plog(XLOG_USER, "Cannot switch logfile"); 444 445 return; 446} 447