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3dfd8e0dc33c806df7e96fe2e4600a3b19fc23fe
apache/server/main.c
Roy T. Fielding bab4dcb050 Rearchitect the mess in http_main.c, http_core.c and buff.c. 
Basic restructuring to introduce the MPM concept; includes various
changes to the module API... better described by docs/initial_blurb.txt.

Created multiple process model (MPM) concept by ripping out the process
guts from http_main.c and http_core.c and moving them to separate files
under src/modules/mpm/

Moved socket creation stuff to listen.c.
Moved connection open, maintenance and close to http_connection.c.

I/O layering and BUFF revamp.  Much of buff.c moved to ap_iol,
iol_socket, and iol_file.  See docs/buff.txt.

Moved user and auth fields from connection_rec to request_rec.
Removed RLIMIT stuff, supposedly to be implemented later in mod_cgi.
Disabled suexec, supposedly to be reimplemented later.

Submitted by:	Dean Gaudet


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@83763 13f79535-47bb-0310-9956-ffa450edef68
1999-08-26 10:45:57 +00:00

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/* ====================================================================
* Copyright (c) 1995-1999 The Apache Group. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Group and was originally based
* on public domain software written at the National Center for
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
#define CORE_PRIVATE
#include "httpd.h"
#include "http_main.h"
#include "http_config.h"
#include "util_uri.h"
#include "ap_mpm.h"
char *ap_server_argv0;
API_VAR_EXPORT const char *ap_server_root;
array_header *ap_server_pre_read_config;
array_header *ap_server_post_read_config;
array_header *ap_server_config_defines;
static void show_compile_settings(void)
{
printf("Server version: %s\n", ap_get_server_version());
printf("Server built: %s\n", ap_get_server_built());
printf("Server's Module Magic Number: %u:%u\n",
MODULE_MAGIC_NUMBER_MAJOR, MODULE_MAGIC_NUMBER_MINOR);
printf("Server compiled with....\n");
#ifdef BIG_SECURITY_HOLE
printf(" -D BIG_SECURITY_HOLE\n");
#endif
#ifdef SECURITY_HOLE_PASS_AUTHORIZATION
printf(" -D SECURITY_HOLE_PASS_AUTHORIZATION\n");
#endif
#ifdef HAVE_MMAP
printf(" -D HAVE_MMAP\n");
#endif
#ifdef HAVE_SHMGET
printf(" -D HAVE_SHMGET\n");
#endif
#ifdef USE_MMAP_SCOREBOARD
printf(" -D USE_MMAP_SCOREBOARD\n");
#endif
#ifdef USE_SHMGET_SCOREBOARD
printf(" -D USE_SHMGET_SCOREBOARD\n");
#endif
#ifdef USE_OS2_SCOREBOARD
printf(" -D USE_OS2_SCOREBOARD\n");
#endif
#ifdef USE_POSIX_SCOREBOARD
printf(" -D USE_POSIX_SCOREBOARD\n");
#endif
#ifdef USE_MMAP_FILES
printf(" -D USE_MMAP_FILES\n");
#ifdef MMAP_SEGMENT_SIZE
printf(" -D MMAP_SEGMENT_SIZE=%ld\n",(long)MMAP_SEGMENT_SIZE);
#endif
#endif /*USE_MMAP_FILES*/
#ifdef NO_WRITEV
printf(" -D NO_WRITEV\n");
#endif
#ifdef NO_LINGCLOSE
printf(" -D NO_LINGCLOSE\n");
#endif
#ifdef USE_FCNTL_SERIALIZED_ACCEPT
printf(" -D USE_FCNTL_SERIALIZED_ACCEPT\n");
#endif
#ifdef USE_FLOCK_SERIALIZED_ACCEPT
printf(" -D USE_FLOCK_SERIALIZED_ACCEPT\n");
#endif
#ifdef USE_USLOCK_SERIALIZED_ACCEPT
printf(" -D USE_USLOCK_SERIALIZED_ACCEPT\n");
#endif
#ifdef USE_SYSVSEM_SERIALIZED_ACCEPT
printf(" -D USE_SYSVSEM_SERIALIZED_ACCEPT\n");
#endif
#ifdef USE_PTHREAD_SERIALIZED_ACCEPT
printf(" -D USE_PTHREAD_SERIALIZED_ACCEPT\n");
#endif
#ifdef SINGLE_LISTEN_UNSERIALIZED_ACCEPT
printf(" -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT\n");
#endif
#ifdef HAS_OTHER_CHILD
printf(" -D HAS_OTHER_CHILD\n");
#endif
#ifdef NO_RELIABLE_PIPED_LOGS
printf(" -D NO_RELIABLE_PIPED_LOGS\n");
#endif
#ifdef BUFFERED_LOGS
printf(" -D BUFFERED_LOGS\n");
#ifdef PIPE_BUF
printf(" -D PIPE_BUF=%ld\n",(long)PIPE_BUF);
#endif
#endif
#ifdef MULTITHREAD
printf(" -D MULTITHREAD\n");
#endif
#ifdef CHARSET_EBCDIC
printf(" -D CHARSET_EBCDIC\n");
#endif
#ifdef NEED_HASHBANG_EMUL
printf(" -D NEED_HASHBANG_EMUL\n");
#endif
#ifdef SHARED_CORE
printf(" -D SHARED_CORE\n");
#endif
/* This list displays the compiled-in default paths: */
#ifdef HTTPD_ROOT
printf(" -D HTTPD_ROOT=\"" HTTPD_ROOT "\"\n");
#endif
#ifdef SUEXEC_BIN
printf(" -D SUEXEC_BIN=\"" SUEXEC_BIN "\"\n");
#endif
#if defined(SHARED_CORE) && defined(SHARED_CORE_DIR)
printf(" -D SHARED_CORE_DIR=\"" SHARED_CORE_DIR "\"\n");
#endif
#ifdef DEFAULT_PIDLOG
printf(" -D DEFAULT_PIDLOG=\"" DEFAULT_PIDLOG "\"\n");
#endif
#ifdef DEFAULT_SCOREBOARD
printf(" -D DEFAULT_SCOREBOARD=\"" DEFAULT_SCOREBOARD "\"\n");
#endif
#ifdef DEFAULT_LOCKFILE
printf(" -D DEFAULT_LOCKFILE=\"" DEFAULT_LOCKFILE "\"\n");
#endif
#ifdef DEFAULT_XFERLOG
printf(" -D DEFAULT_XFERLOG=\"" DEFAULT_XFERLOG "\"\n");
#endif
#ifdef DEFAULT_ERRORLOG
printf(" -D DEFAULT_ERRORLOG=\"" DEFAULT_ERRORLOG "\"\n");
#endif
#ifdef TYPES_CONFIG_FILE
printf(" -D TYPES_CONFIG_FILE=\"" TYPES_CONFIG_FILE "\"\n");
#endif
#ifdef SERVER_CONFIG_FILE
printf(" -D SERVER_CONFIG_FILE=\"" SERVER_CONFIG_FILE "\"\n");
#endif
#ifdef ACCESS_CONFIG_FILE
printf(" -D ACCESS_CONFIG_FILE=\"" ACCESS_CONFIG_FILE "\"\n");
#endif
#ifdef RESOURCE_CONFIG_FILE
printf(" -D RESOURCE_CONFIG_FILE=\"" RESOURCE_CONFIG_FILE "\"\n");
#endif
}
static void usage(char *bin)
{
char pad[MAX_STRING_LEN];
unsigned i;
for (i = 0; i < strlen(bin); i++)
pad[i] = ' ';
pad[i] = '\0';
#ifdef SHARED_CORE
fprintf(stderr, "Usage: %s [-R directory] [-D name] [-d directory] [-f file]\n", bin);
#else
fprintf(stderr, "Usage: %s [-D name] [-d directory] [-f file]\n", bin);
#endif
fprintf(stderr, " %s [-C \"directive\"] [-c \"directive\"]\n", pad);
fprintf(stderr, " %s [-v] [-V] [-h] [-l] [-L] [-S] [-t] [-T]\n", pad);
fprintf(stderr, "Options:\n");
#ifdef SHARED_CORE
fprintf(stderr, " -R directory : specify an alternate location for shared object files\n");
#endif
fprintf(stderr, " -D name : define a name for use in <IfDefine name> directives\n");
fprintf(stderr, " -d directory : specify an alternate initial ServerRoot\n");
fprintf(stderr, " -f file : specify an alternate ServerConfigFile\n");
fprintf(stderr, " -C \"directive\" : process directive before reading config files\n");
fprintf(stderr, " -c \"directive\" : process directive after reading config files\n");
fprintf(stderr, " -v : show version number\n");
fprintf(stderr, " -V : show compile settings\n");
fprintf(stderr, " -h : list available command line options (this page)\n");
fprintf(stderr, " -l : list compiled-in modules\n");
fprintf(stderr, " -L : list available configuration directives\n");
/* TODOC: -S has been replaced by '-t -D DUMP_VHOSTS' */
/* fprintf(stderr, " -S : show parsed settings (currently only vhost settings)\n"); */
fprintf(stderr, " -t : run syntax check for config files (with docroot check)\n");
fprintf(stderr, " -T : run syntax check for config files (without docroot check)\n");
/* TODOC: -X goes away, expect MPMs to use -D options */
exit(1);
}
pool *g_pHookPool;
int main(int argc, char **argv)
{
int c;
int configtestonly = 0;
char *s;
const char *confname = SERVER_CONFIG_FILE;
const char *def_server_root = HTTPD_ROOT;
server_rec *server_conf;
pool *pglobal; /* Global pool */
pool *pconf; /* Pool for config stuff */
pool *plog; /* Pool for error-logging files */
pool *ptemp; /* Pool for temporart config stuff */
pool *pcommands; /* Pool for -C and -c switches */
extern char *optarg;
/* TODO: PATHSEPARATOR should be one of the os defines */
#define PATHSEPARATOR '/'
if ((s = strrchr(argv[0], PATHSEPARATOR)) != NULL) {
ap_server_argv0 = ++s;
}
else {
ap_server_argv0 = argv[0];
}
ap_util_init();
ap_util_uri_init();
pglobal = ap_init_alloc();
g_pHookPool=pglobal;
pcommands = ap_make_sub_pool(pglobal);
ap_server_pre_read_config = ap_make_array(pcommands, 1, sizeof(char *));
ap_server_post_read_config = ap_make_array(pcommands, 1, sizeof(char *));
ap_server_config_defines = ap_make_array(pcommands, 1, sizeof(char *));
ap_setup_prelinked_modules();
while ((c = getopt(argc, argv, "D:C:c:Xd:f:vVlLR:th")) != -1) {
char **new;
switch (c) {
case 'c':
new = (char **)ap_push_array(ap_server_post_read_config);
*new = ap_pstrdup(pcommands, optarg);
break;
case 'C':
new = (char **)ap_push_array(ap_server_pre_read_config);
*new = ap_pstrdup(pcommands, optarg);
break;
case 'd':
def_server_root = optarg;
break;
case 'f':
confname = optarg;
break;
case 'v':
printf("Server version: %s\n", ap_get_server_version());
printf("Server built: %s\n", ap_get_server_built());
exit(0);
case 'V':
show_compile_settings();
exit(0);
case 'l':
ap_show_modules();
exit(0);
case 'L':
ap_show_directives();
exit(0);
case 't':
configtestonly = 1;
break;
case 'h':
usage(argv[0]);
case '?':
usage(argv[0]);
}
}
pconf = ap_make_sub_pool(pglobal);
plog = ap_make_sub_pool(pglobal);
ptemp = ap_make_sub_pool(pconf);
/* for legacy reasons, we read the configuration twice before
we actually serve any requests */
ap_server_root = def_server_root;
ap_run_pre_config(pconf, plog, ptemp);
server_conf = ap_read_config(pconf, ptemp, confname);
if (configtestonly) {
fprintf(stderr, "Syntax OK\n");
exit(0);
}
ap_clear_pool(plog);
ap_run_open_logs(pconf, plog, ptemp, server_conf);
ap_post_config_hook(pconf, plog, ptemp, server_conf);
ap_clear_pool(ptemp);
for (;;) {
ap_clear_pool(pconf);
ptemp = ap_make_sub_pool(pconf);
ap_server_root = def_server_root;
ap_run_pre_config(pconf, plog, ptemp);
server_conf = ap_read_config(pconf, ptemp, confname);
ap_clear_pool(plog);
ap_run_open_logs(pconf, plog, ptemp, server_conf);
ap_post_config_hook(pconf, plog, ptemp, server_conf);
ap_destroy_pool(ptemp);
if (ap_mpm_run(pconf, plog, server_conf)) break;
}
ap_clear_pool(pconf);
ap_clear_pool(plog);
ap_destroy_pool(pglobal);
exit(0);
}
/* force Expat to be linked into the server executable */
#if defined(USE_EXPAT) && !defined(SHARED_CORE_BOOTSTRAP)
#include "xmlparse.h"
const XML_LChar *suck_in_expat(void);
const XML_LChar *suck_in_expat(void)
{
return XML_ErrorString(XML_ERROR_NONE);
}
#endif /* USE_EXPAT */
#ifndef SHARED_CORE_BOOTSTRAP
/*
* Force ap_validate_password() into the image so that modules like
* mod_auth can use it even if they're dynamically loaded.
*/
void suck_in_ap_validate_password(void);
void suck_in_ap_validate_password(void)
{
ap_validate_password("a", "b");
}
#endif
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