server/main.c

   1 /* Licensed to the Apache Software Foundation (ASF) under one or more
   2  * contributor license agreements.  See the NOTICE file distributed with
   3  * this work for additional information regarding copyright ownership.
   4  * The ASF licenses this file to You under the Apache License, Version 2.0
   5  * (the "License"); you may not use this file except in compliance with
   6  * the License.  You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "apr.h"
  18 #include "apr_strings.h"
  19 #include "apr_getopt.h"
  20 #include "apr_general.h"
  21 #include "apr_lib.h"
  22 #include "apr_md5.h"
  23 #include "apr_time.h"
  24 #include "apr_version.h"
  25 #include "apu_version.h"
  26
  27 #define APR_WANT_STDIO
  28 #define APR_WANT_STRFUNC
  29 #include "apr_want.h"
  30
  31 #include "ap_config.h"
  32 #include "httpd.h"
  33 #include "http_main.h"
  34 #include "http_log.h"
  35 #include "http_config.h"
  36 #include "http_core.h"
  37 #include "http_request.h"
  38 #include "http_vhost.h"
  39 #include "apr_uri.h"
  40 #include "util_ebcdic.h"
  41 #include "ap_mpm.h"
  42 #include "mpm_common.h"
  43 #include "ap_expr.h"
  44
  45 #if APR_HAVE_UNISTD_H
  46 #include <unistd.h>
  47 #endif
  48
  49 /* WARNING: Win32 binds http_main.c dynamically to the server. Please place
  50  *          extern functions and global data in another appropriate module.
  51  *
  52  * Most significant main() global data can be found in http_config.c
  53  */
  54
  55 static void show_mpm_settings(void)
  56 {
  57     int mpm_query_info;
  58     apr_status_t retval;
  59
  60     printf("Server MPM:     %s\n", ap_show_mpm());
  61
  62     retval = ap_mpm_query(AP_MPMQ_IS_THREADED, &mpm_query_info);
  63
  64     if (retval == APR_SUCCESS) {
  65         printf("  threaded:     ");
  66
  67         if (mpm_query_info == AP_MPMQ_DYNAMIC) {
  68             printf("yes (variable thread count)\n");
  69         }
  70         else if (mpm_query_info == AP_MPMQ_STATIC) {
  71             printf("yes (fixed thread count)\n");
  72         }
  73         else {
  74             printf("no\n");
  75         }
  76     }
  77
  78     retval = ap_mpm_query(AP_MPMQ_IS_FORKED, &mpm_query_info);
  79
  80     if (retval == APR_SUCCESS) {
  81         printf("    forked:     ");
  82
  83         if (mpm_query_info == AP_MPMQ_DYNAMIC) {
  84             printf("yes (variable process count)\n");
  85         }
  86         else if (mpm_query_info == AP_MPMQ_STATIC) {
  87             printf("yes (fixed process count)\n");
  88         }
  89         else {
  90             printf("no\n");
  91         }
  92     }
  93 }
  94
  95 static void show_compile_settings(void)
  96 {
  97     printf("Server version: %s\n", ap_get_server_description());
  98     printf("Server built:   %s\n", ap_get_server_built());
  99     printf("Server's Module Magic Number: %u:%u\n",
 100            MODULE_MAGIC_NUMBER_MAJOR, MODULE_MAGIC_NUMBER_MINOR);
 101     printf("Server loaded:  APR %s, APR-UTIL %s\n",
 102            apr_version_string(), apu_version_string());
 103     printf("Compiled using: APR %s, APR-UTIL %s\n",
 104            APR_VERSION_STRING, APU_VERSION_STRING);
 105     /* sizeof(foo) is long on some platforms so we might as well
 106      * make it long everywhere to keep the printf format
 107      * consistent
 108      */
 109     printf("Architecture:   %ld-bit\n", 8 * (long)sizeof(void *));
 110
 111     show_mpm_settings();
 112
 113     printf("Server compiled with....\n");
 114 #ifdef BIG_SECURITY_HOLE
 115     printf(" -D BIG_SECURITY_HOLE\n");
 116 #endif
 117
 118 #ifdef SECURITY_HOLE_PASS_AUTHORIZATION
 119     printf(" -D SECURITY_HOLE_PASS_AUTHORIZATION\n");
 120 #endif
 121
 122 #ifdef OS
 123     printf(" -D OS=\"" OS "\"\n");
 124 #endif
 125
 126 #ifdef APACHE_MPM_DIR
 127     printf(" -D APACHE_MPM_DIR=\"" APACHE_MPM_DIR "\"\n");
 128 #endif
 129
 130 #ifdef HAVE_SHMGET
 131     printf(" -D HAVE_SHMGET\n");
 132 #endif
 133
 134 #if APR_FILE_BASED_SHM
 135     printf(" -D APR_FILE_BASED_SHM\n");
 136 #endif
 137
 138 #if APR_HAS_SENDFILE
 139     printf(" -D APR_HAS_SENDFILE\n");
 140 #endif
 141
 142 #if APR_HAS_MMAP
 143     printf(" -D APR_HAS_MMAP\n");
 144 #endif
 145
 146 #ifdef NO_WRITEV
 147     printf(" -D NO_WRITEV\n");
 148 #endif
 149
 150 #ifdef NO_LINGCLOSE
 151     printf(" -D NO_LINGCLOSE\n");
 152 #endif
 153
 154 #if APR_HAVE_IPV6
 155     printf(" -D APR_HAVE_IPV6 (IPv4-mapped addresses ");
 156 #ifdef AP_ENABLE_V4_MAPPED
 157     printf("enabled)\n");
 158 #else
 159     printf("disabled)\n");
 160 #endif
 161 #endif
 162
 163 #if APR_USE_FLOCK_SERIALIZE
 164     printf(" -D APR_USE_FLOCK_SERIALIZE\n");
 165 #endif
 166
 167 #if APR_USE_SYSVSEM_SERIALIZE
 168     printf(" -D APR_USE_SYSVSEM_SERIALIZE\n");
 169 #endif
 170
 171 #if APR_USE_POSIXSEM_SERIALIZE
 172     printf(" -D APR_USE_POSIXSEM_SERIALIZE\n");
 173 #endif
 174
 175 #if APR_USE_FCNTL_SERIALIZE
 176     printf(" -D APR_USE_FCNTL_SERIALIZE\n");
 177 #endif
 178
 179 #if APR_USE_PROC_PTHREAD_SERIALIZE
 180     printf(" -D APR_USE_PROC_PTHREAD_SERIALIZE\n");
 181 #endif
 182
 183 #if APR_USE_PTHREAD_SERIALIZE
 184     printf(" -D APR_USE_PTHREAD_SERIALIZE\n");
 185 #endif
 186
 187 #if APR_PROCESS_LOCK_IS_GLOBAL
 188     printf(" -D APR_PROCESS_LOCK_IS_GLOBAL\n");
 189 #endif
 190
 191 #ifdef SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 192     printf(" -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT\n");
 193 #endif
 194
 195 #if APR_HAS_OTHER_CHILD
 196     printf(" -D APR_HAS_OTHER_CHILD\n");
 197 #endif
 198
 199 #ifdef AP_HAVE_RELIABLE_PIPED_LOGS
 200     printf(" -D AP_HAVE_RELIABLE_PIPED_LOGS\n");
 201 #endif
 202
 203 #ifdef BUFFERED_LOGS
 204     printf(" -D BUFFERED_LOGS\n");
 205 #ifdef PIPE_BUF
 206     printf(" -D PIPE_BUF=%ld\n",(long)PIPE_BUF);
 207 #endif
 208 #endif
 209
 210     printf(" -D DYNAMIC_MODULE_LIMIT=%ld\n",(long)DYNAMIC_MODULE_LIMIT);
 211
 212 #if APR_CHARSET_EBCDIC
 213     printf(" -D APR_CHARSET_EBCDIC\n");
 214 #endif
 215
 216 #ifdef NEED_HASHBANG_EMUL
 217     printf(" -D NEED_HASHBANG_EMUL\n");
 218 #endif
 219
 220 #ifdef SHARED_CORE
 221     printf(" -D SHARED_CORE\n");
 222 #endif
 223
 224 /* This list displays the compiled in default paths: */
 225 #ifdef HTTPD_ROOT
 226     printf(" -D HTTPD_ROOT=\"" HTTPD_ROOT "\"\n");
 227 #endif
 228
 229 #ifdef SUEXEC_BIN
 230     printf(" -D SUEXEC_BIN=\"" SUEXEC_BIN "\"\n");
 231 #endif
 232
 233 #if defined(SHARED_CORE) && defined(SHARED_CORE_DIR)
 234     printf(" -D SHARED_CORE_DIR=\"" SHARED_CORE_DIR "\"\n");
 235 #endif
 236
 237 #ifdef DEFAULT_PIDLOG
 238     printf(" -D DEFAULT_PIDLOG=\"" DEFAULT_PIDLOG "\"\n");
 239 #endif
 240
 241 #ifdef DEFAULT_SCOREBOARD
 242     printf(" -D DEFAULT_SCOREBOARD=\"" DEFAULT_SCOREBOARD "\"\n");
 243 #endif
 244
 245 #ifdef DEFAULT_LOCKFILE
 246     printf(" -D DEFAULT_LOCKFILE=\"" DEFAULT_LOCKFILE "\"\n");
 247 #endif
 248
 249 #ifdef DEFAULT_ERRORLOG
 250     printf(" -D DEFAULT_ERRORLOG=\"" DEFAULT_ERRORLOG "\"\n");
 251 #endif
 252
 253 #ifdef AP_TYPES_CONFIG_FILE
 254     printf(" -D AP_TYPES_CONFIG_FILE=\"" AP_TYPES_CONFIG_FILE "\"\n");
 255 #endif
 256
 257 #ifdef SERVER_CONFIG_FILE
 258     printf(" -D SERVER_CONFIG_FILE=\"" SERVER_CONFIG_FILE "\"\n");
 259 #endif
 260 }
 261
 262 #define TASK_SWITCH_SLEEP 10000
 263
 264 static void destroy_and_exit_process(process_rec *process,
 265                                      int process_exit_value)
 266 {
 267     /*
 268      * Sleep for TASK_SWITCH_SLEEP micro seconds to cause a task switch on
 269      * OS layer and thus give possibly started piped loggers a chance to
 270      * process their input. Otherwise it is possible that they get killed
 271      * by us before they can do so. In this case maybe valueable log messages
 272      * might get lost.
 273      */
 274     apr_sleep(TASK_SWITCH_SLEEP);
 275     apr_pool_destroy(process->pool); /* and destroy all descendent pools */
 276     apr_terminate();
 277     exit(process_exit_value);
 278 }
 279
 280 #define OOM_MESSAGE "[crit] Memory allocation failed, " \
 281     "aborting process." APR_EOL_STR
 282
 283 /* APR callback invoked if allocation fails. */
 284 static int abort_on_oom(int retcode)
 285 {
 286     write(STDERR_FILENO, OOM_MESSAGE, strlen(OOM_MESSAGE));
 287     abort();
 288     return retcode; /* unreachable, hopefully. */
 289 }
 290
 291 static process_rec *init_process(int *argc, const char * const * *argv)
 292 {
 293     process_rec *process;
 294     apr_pool_t *cntx;
 295     apr_status_t stat;
 296     const char *failed = "apr_app_initialize()";
 297
 298     stat = apr_app_initialize(argc, argv, NULL);
 299     if (stat == APR_SUCCESS) {
 300         failed = "apr_pool_create()";
 301         stat = apr_pool_create(&cntx, NULL);
 302     }
 303
 304     if (stat != APR_SUCCESS) {
 305         /* For all intents and purposes, this is impossibly unlikely,
 306          * but APR doesn't exist yet, we can't use it for reporting
 307          * these earliest two failures;
 308          *
 309          * XXX: Note the apr_ctime() and apr_time_now() calls.  These
 310          * work, today, against an uninitialized APR, but in the future
 311          * (if they relied on global pools or mutexes, for example) then
 312          * the datestamp logic will need to be replaced.
 313          */
 314         char ctimebuff[APR_CTIME_LEN];
 315         apr_ctime(ctimebuff, apr_time_now());
 316         fprintf(stderr, "[%s] [crit] (%d) %s: %s failed "
 317                         "to initial context, exiting\n",
 318                         ctimebuff, stat, (*argv)[0], failed);
 319         apr_terminate();
 320         exit(1);
 321     }
 322
 323     apr_pool_abort_set(abort_on_oom, cntx);
 324     apr_pool_tag(cntx, "process");
 325     ap_open_stderr_log(cntx);
 326
 327     /* Now we have initialized apr and our logger, no more
 328      * exceptional error reporting required for the lifetime
 329      * of this server process.
 330      */
 331
 332     process = apr_palloc(cntx, sizeof(process_rec));
 333     process->pool = cntx;
 334
 335     apr_pool_create(&process->pconf, process->pool);
 336     apr_pool_tag(process->pconf, "pconf");
 337     process->argc = *argc;
 338     process->argv = *argv;
 339     process->short_name = apr_filepath_name_get((*argv)[0]);
 340     return process;
 341 }
 342
 343 static void usage(process_rec *process)
 344 {
 345     const char *bin = process->argv[0];
 346     char pad[MAX_STRING_LEN];
 347     unsigned i;
 348
 349     for (i = 0; i < strlen(bin); i++) {
 350         pad[i] = ' ';
 351     }
 352
 353     pad[i] = '\0';
 354
 355 #ifdef SHARED_CORE
 356     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL ,
 357                  "Usage: %s [-R directory] [-D name] [-d directory] [-f file]",
 358                  bin);
 359 #else
 360     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 361                  "Usage: %s [-D name] [-d directory] [-f file]", bin);
 362 #endif
 363
 364     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 365                  "       %s [-C \"directive\"] [-c \"directive\"]", pad);
 366
 367 #ifdef WIN32
 368     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 369                  "       %s [-w] [-k start|restart|stop|shutdown]", pad);
 370     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 371                  "       %s [-k install|config|uninstall] [-n service_name]",
 372                  pad);
 373 #endif
 374 #ifdef AP_MPM_WANT_SIGNAL_SERVER
 375 #ifdef AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN
 376     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 377                  "       %s [-k start|restart|graceful|graceful-stop|stop]",
 378                  pad);
 379 #else
 380     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 381                  "       %s [-k start|restart|graceful|stop]",
 382                  pad);
 383 #endif /* AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN */
 384 #endif
 385     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 386                  "       %s [-v] [-V] [-h] [-l] [-L] [-t] [-S]", pad);
 387     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 388                  "Options:");
 389
 390 #ifdef SHARED_CORE
 391     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 392                  "  -R directory       : specify an alternate location for "
 393                  "shared object files");
 394 #endif
 395
 396     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 397                  "  -D name            : define a name for use in "
 398                  "<IfDefine name> directives");
 399     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 400                  "  -d directory       : specify an alternate initial "
 401                  "ServerRoot");
 402     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 403                  "  -f file            : specify an alternate ServerConfigFile");
 404     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 405                  "  -C \"directive\"     : process directive before reading "
 406                  "config files");
 407     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 408                  "  -c \"directive\"     : process directive after reading "
 409                  "config files");
 410
 411 #ifdef NETWARE
 412     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 413                  "  -n name            : set screen name");
 414 #endif
 415 #ifdef WIN32
 416     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 417                  "  -n name            : set service name and use its "
 418                  "ServerConfigFile");
 419     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 420                  "  -k start           : tell Apache to start");
 421     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 422                  "  -k restart         : tell running Apache to do a graceful "
 423                  "restart");
 424     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 425                  "  -k stop|shutdown   : tell running Apache to shutdown");
 426     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 427                  "  -k install         : install an Apache service");
 428     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 429                  "  -k config          : change startup Options of an Apache "
 430                  "service");
 431     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 432                  "  -k uninstall       : uninstall an Apache service");
 433     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 434                  "  -w                 : hold open the console window on error");
 435 #endif
 436
 437     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 438                  "  -e level           : show startup errors of level "
 439                  "(see LogLevel)");
 440     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 441                  "  -E file            : log startup errors to file");
 442     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 443                  "  -v                 : show version number");
 444     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 445                  "  -V                 : show compile settings");
 446     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 447                  "  -h                 : list available command line options "
 448                  "(this page)");
 449     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 450                  "  -l                 : list compiled in modules");
 451     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 452                  "  -L                 : list available configuration "
 453                  "directives");
 454     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 455                  "  -t -D DUMP_VHOSTS  : show parsed settings (currently only "
 456                  "vhost settings)");
 457     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 458                  "  -S                 : a synonym for -t -D DUMP_VHOSTS");
 459     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 460                  "  -t -D DUMP_MODULES : show all loaded modules ");
 461     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 462                  "  -M                 : a synonym for -t -D DUMP_MODULES");
 463     ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
 464                  "  -t                 : run syntax check for config files");
 465
 466     destroy_and_exit_process(process, 1);
 467 }
 468
 469 int main(int argc, const char * const argv[])
 470 {
 471     char c;
 472     int configtestonly = 0;
 473     const char *confname = SERVER_CONFIG_FILE;
 474     const char *def_server_root = HTTPD_ROOT;
 475     const char *temp_error_log = NULL;
 476     const char *error;
 477     process_rec *process;
 478     server_rec *server_conf;
 479     apr_pool_t *pglobal;
 480     apr_pool_t *pconf;
 481     apr_pool_t *plog; /* Pool of log streams, reset _after_ each read of conf */
 482     apr_pool_t *ptemp; /* Pool for temporary config stuff, reset often */
 483     apr_pool_t *pcommands; /* Pool for -D, -C and -c switches */
 484     apr_getopt_t *opt;
 485     apr_status_t rv;
 486     module **mod;
 487     const char *optarg;
 488     APR_OPTIONAL_FN_TYPE(ap_signal_server) *signal_server;
 489
 490     AP_MONCONTROL(0); /* turn off profiling of startup */
 491
 492     process = init_process(&argc, &argv);
 493     pglobal = process->pool;
 494     pconf = process->pconf;
 495     ap_server_argv0 = process->short_name;
 496
 497     /* Set up the OOM callback in the global pool, so all pools should
 498      * by default inherit it. */
 499     apr_pool_abort_set(abort_on_oom, apr_pool_parent_get(process->pool));
 500
 501 #if APR_CHARSET_EBCDIC
 502     if (ap_init_ebcdic(pglobal) != APR_SUCCESS) {
 503         destroy_and_exit_process(process, 1);
 504     }
 505 #endif
 506     if (ap_expr_init(pglobal) != APR_SUCCESS) {
 507         destroy_and_exit_process(process, 1);
 508     }
 509
 510     apr_pool_create(&pcommands, pglobal);
 511     apr_pool_tag(pcommands, "pcommands");
 512     ap_server_pre_read_config  = apr_array_make(pcommands, 1, sizeof(char *));
 513     ap_server_post_read_config = apr_array_make(pcommands, 1, sizeof(char *));
 514     ap_server_config_defines   = apr_array_make(pcommands, 1, sizeof(char *));
 515
 516     error = ap_setup_prelinked_modules(process);
 517     if (error) {
 518         ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_EMERG, 0, NULL, "%s: %s",
 519                      ap_server_argv0, error);
 520         destroy_and_exit_process(process, 1);
 521     }
 522
 523     ap_run_rewrite_args(process);
 524
 525     /* Maintain AP_SERVER_BASEARGS list in http_main.h to allow the MPM
 526      * to safely pass on our args from its rewrite_args() handler.
 527      */
 528     apr_getopt_init(&opt, pcommands, process->argc, process->argv);
 529
 530     while ((rv = apr_getopt(opt, AP_SERVER_BASEARGS, &c, &optarg))
 531             == APR_SUCCESS) {
 532         char **new;
 533
 534         switch (c) {
 535         case 'c':
 536             new = (char **)apr_array_push(ap_server_post_read_config);
 537             *new = apr_pstrdup(pcommands, optarg);
 538             break;
 539
 540         case 'C':
 541             new = (char **)apr_array_push(ap_server_pre_read_config);
 542             *new = apr_pstrdup(pcommands, optarg);
 543             break;
 544
 545         case 'd':
 546             def_server_root = optarg;
 547             break;
 548
 549         case 'D':
 550             new = (char **)apr_array_push(ap_server_config_defines);
 551             *new = apr_pstrdup(pcommands, optarg);
 552             /* Setting -D DUMP_VHOSTS is equivalent to setting -S */
 553             if (strcmp(optarg, "DUMP_VHOSTS") == 0)
 554                 configtestonly = 1;
 555             /* Setting -D DUMP_MODULES is equivalent to setting -M */
 556             if (strcmp(optarg, "DUMP_MODULES") == 0)
 557                 configtestonly = 1;
 558             break;
 559
 560         case 'e':
 561             if (strcasecmp(optarg, "emerg") == 0) {
 562                 ap_default_loglevel = APLOG_EMERG;
 563             }
 564             else if (strcasecmp(optarg, "alert") == 0) {
 565                 ap_default_loglevel = APLOG_ALERT;
 566             }
 567             else if (strcasecmp(optarg, "crit") == 0) {
 568                 ap_default_loglevel = APLOG_CRIT;
 569             }
 570             else if (strncasecmp(optarg, "err", 3) == 0) {
 571                 ap_default_loglevel = APLOG_ERR;
 572             }
 573             else if (strncasecmp(optarg, "warn", 4) == 0) {
 574                 ap_default_loglevel = APLOG_WARNING;
 575             }
 576             else if (strcasecmp(optarg, "notice") == 0) {
 577                 ap_default_loglevel = APLOG_NOTICE;
 578             }
 579             else if (strcasecmp(optarg, "info") == 0) {
 580                 ap_default_loglevel = APLOG_INFO;
 581             }
 582             else if (strcasecmp(optarg, "debug") == 0) {
 583                 ap_default_loglevel = APLOG_DEBUG;
 584             }
 585             else {
 586                 usage(process);
 587             }
 588             break;
 589
 590         case 'E':
 591             temp_error_log = apr_pstrdup(process->pool, optarg);
 592             break;
 593
 594         case 'X':
 595             new = (char **)apr_array_push(ap_server_config_defines);
 596             *new = "DEBUG";
 597             break;
 598
 599         case 'f':
 600             confname = optarg;
 601             break;
 602
 603         case 'v':
 604             printf("Server version: %s\n", ap_get_server_description());
 605             printf("Server built:   %s\n", ap_get_server_built());
 606             destroy_and_exit_process(process, 0);
 607
 608         case 'V':
 609             show_compile_settings();
 610             destroy_and_exit_process(process, 0);
 611
 612         case 'l':
 613             ap_show_modules();
 614             destroy_and_exit_process(process, 0);
 615
 616         case 'L':
 617             ap_show_directives();
 618             destroy_and_exit_process(process, 0);
 619
 620         case 't':
 621             configtestonly = 1;
 622             break;
 623
 624         case 'S':
 625             configtestonly = 1;
 626             new = (char **)apr_array_push(ap_server_config_defines);
 627             *new = "DUMP_VHOSTS";
 628             break;
 629
 630         case 'M':
 631             configtestonly = 1;
 632             new = (char **)apr_array_push(ap_server_config_defines);
 633             *new = "DUMP_MODULES";
 634             break;
 635
 636         case 'h':
 637         case '?':
 638             usage(process);
 639         }
 640     }
 641
 642     /* bad cmdline option?  then we die */
 643     if (rv != APR_EOF || opt->ind < opt->argc) {
 644         usage(process);
 645     }
 646
 647     apr_pool_create(&plog, pglobal);
 648     apr_pool_tag(plog, "plog");
 649     apr_pool_create(&ptemp, pconf);
 650     apr_pool_tag(ptemp, "ptemp");
 651
 652     /* Note that we preflight the config file once
 653      * before reading it _again_ in the main loop.
 654      * This allows things, log files configuration
 655      * for example, to settle down.
 656      */
 657
 658     ap_server_root = def_server_root;
 659     if (temp_error_log) {
 660         ap_replace_stderr_log(process->pool, temp_error_log);
 661     }
 662     server_conf = ap_read_config(process, ptemp, confname, &ap_conftree);
 663     if (!server_conf) {
 664         destroy_and_exit_process(process, 1);
 665     }
 666
 667     if (ap_run_pre_config(pconf, plog, ptemp) != OK) {
 668         ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR, 0,
 669                      NULL, "Pre-configuration failed");
 670         destroy_and_exit_process(process, 1);
 671     }
 672
 673     rv = ap_process_config_tree(server_conf, ap_conftree,
 674                                 process->pconf, ptemp);
 675     if (rv == OK) {
 676         ap_fixup_virtual_hosts(pconf, server_conf);
 677         ap_fini_vhost_config(pconf, server_conf);
 678         apr_hook_sort_all();
 679
 680         if (ap_run_check_config(pconf, plog, ptemp, server_conf) != OK) {
 681             ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR, 0,
 682                          NULL, "Configuration check failed");
 683             destroy_and_exit_process(process, 1);
 684         }
 685
 686         if (configtestonly) {
 687             ap_run_test_config(pconf, server_conf);
 688             ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, "Syntax OK");
 689             destroy_and_exit_process(process, 0);
 690         }
 691     }
 692
 693     signal_server = APR_RETRIEVE_OPTIONAL_FN(ap_signal_server);
 694     if (signal_server) {
 695         int exit_status;
 696
 697         if (signal_server(&exit_status, pconf) != 0) {
 698             destroy_and_exit_process(process, exit_status);
 699         }
 700     }
 701
 702     /* If our config failed, deal with that here. */
 703     if (rv != OK) {
 704         destroy_and_exit_process(process, 1);
 705     }
 706
 707     apr_pool_clear(plog);
 708
 709     if ( ap_run_open_logs(pconf, plog, ptemp, server_conf) != OK) {
 710         ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR,
 711                      0, NULL, "Unable to open logs");
 712         destroy_and_exit_process(process, 1);
 713     }
 714
 715     if ( ap_run_post_config(pconf, plog, ptemp, server_conf) != OK) {
 716         ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR, 0,
 717                      NULL, "Configuration Failed");
 718         destroy_and_exit_process(process, 1);
 719     }
 720
 721     apr_pool_destroy(ptemp);
 722
 723     for (;;) {
 724         apr_hook_deregister_all();
 725         apr_pool_clear(pconf);
 726         ap_clear_auth_internal();
 727
 728         for (mod = ap_prelinked_modules; *mod != NULL; mod++) {
 729             ap_register_hooks(*mod, pconf);
 730         }
 731
 732         /* This is a hack until we finish the code so that it only reads
 733          * the config file once and just operates on the tree already in
 734          * memory.  rbb
 735          */
 736         ap_conftree = NULL;
 737         apr_pool_create(&ptemp, pconf);
 738         apr_pool_tag(ptemp, "ptemp");
 739         ap_server_root = def_server_root;
 740         server_conf = ap_read_config(process, ptemp, confname, &ap_conftree);
 741         if (!server_conf) {
 742             destroy_and_exit_process(process, 1);
 743         }
 744
 745         if (ap_run_pre_config(pconf, plog, ptemp) != OK) {
 746             ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR,
 747                          0, NULL, "Pre-configuration failed");
 748             destroy_and_exit_process(process, 1);
 749         }
 750
 751         if (ap_process_config_tree(server_conf, ap_conftree, process->pconf,
 752                                    ptemp) != OK) {
 753             destroy_and_exit_process(process, 1);
 754         }
 755         ap_fixup_virtual_hosts(pconf, server_conf);
 756         ap_fini_vhost_config(pconf, server_conf);
 757         apr_hook_sort_all();
 758
 759         if (ap_run_check_config(pconf, plog, ptemp, server_conf) != OK) {
 760             ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR, 0,
 761                          NULL, "Configuration check failed");
 762             destroy_and_exit_process(process, 1);
 763         }
 764
 765         apr_pool_clear(plog);
 766         if (ap_run_open_logs(pconf, plog, ptemp, server_conf) != OK) {
 767             ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR,
 768                          0, NULL, "Unable to open logs");
 769             destroy_and_exit_process(process, 1);
 770         }
 771
 772         if (ap_run_post_config(pconf, plog, ptemp, server_conf) != OK) {
 773             ap_log_error(APLOG_MARK, APLOG_STARTUP |APLOG_ERR,
 774                          0, NULL, "Configuration Failed");
 775             destroy_and_exit_process(process, 1);
 776         }
 777
 778         apr_pool_destroy(ptemp);
 779         apr_pool_lock(pconf, 1);
 780
 781         ap_run_optional_fn_retrieve();
 782
 783         if (ap_mpm_run(pconf, plog, server_conf))
 784             break;
 785
 786         apr_pool_lock(pconf, 0);
 787     }
 788
 789     apr_pool_lock(pconf, 0);
 790     destroy_and_exit_process(process, 0);
 791
 792     return 0; /* Termination 'ok' */
 793 }
 794
 795 #ifdef AP_USING_AUTOCONF
 796 /* This ugly little hack pulls any function referenced in exports.c into
 797  * the web server.  exports.c is generated during the build, and it
 798  * has all of the APR functions specified by the apr/apr.exports and
 799  * apr-util/aprutil.exports files.
 800  */
 801 const void *ap_suck_in_APR(void);
 802 const void *ap_suck_in_APR(void)
 803 {
 804     extern const void *ap_ugly_hack;
 805
 806     return ap_ugly_hack;
 807 }
 808 #endif