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/*
* Copyright (C) 2004-2008 Christos Tsantilas
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*/
#include "common.h"
#include "c-icap.h"
#include <stdio.h>
#include "net_io.h"
#include "debug.h"
#include "module.h"
#include "log.h"
#include "cfg_param.h"
#include "filetype.h"
#include "acl.h"
#include "txtTemplate.h"
#include "commands.h"
/*
extern char *PIDFILE;
extern char *RUN_USER;
extern char *RUN_GROUP;
extern int PORT;
*/
extern int DAEMON_MODE;
extern int MAX_SECS_TO_LINGER;
char MY_HOSTNAME[CI_MAXHOSTNAMELEN + 1];
void init_conf_tables();
int init_body_system();
int config(int, char **);
int init_server();
int start_server();
int store_pid(char *pidfile);
int clear_pid(char *pidfile);
int is_icap_running(char *pidfile);
int set_running_permissions(char *user, char *group);
void init_internal_lookup_tables();
void request_stats_init();
int mem_init();
void init_http_auth();
void compute_my_hostname()
{
char hostname[64];
struct hostent *hent;
int ret;
ret = gethostname(hostname, 63);
if (ret == 0) {
hostname[63] = '\0';
if ((hent = gethostbyname(hostname)) != NULL) {
strncpy(MY_HOSTNAME, hent->h_name, CI_MAXHOSTNAMELEN);
MY_HOSTNAME[CI_MAXHOSTNAMELEN] = '\0';
} else
strcpy(MY_HOSTNAME, hostname);
} else
strcpy(MY_HOSTNAME, "localhost");
}
#if ! defined(_WIN32)
void run_as_daemon()
{
int fd;
int pid, sid;
pid = fork();
if (pid < 0) {
ci_debug_printf(1, "Unable to fork. exiting...");
exit(-1);
}
if (pid > 0)
exit(0);
/* Change the file mode mask */
umask(0);
/* Create a new SID for the child process */
sid = setsid();
if (sid < 0) {
ci_debug_printf(1, "Unable to create a new SID for the main process. exiting...");
exit(-1);
}
/* Change the current working directory */
if ((chdir("/")) < 0) {
ci_debug_printf(1, "Unable to change the working directory. exiting...");
exit(-1);
}
/* Direct standard file descriptors to "/dev/null"*/
fd = open("/dev/null", O_RDWR);
if (fd < 0) {
ci_debug_printf(1, "Unable to open '/dev/null'. exiting...");
exit(-1);
}
if (dup2(fd, STDIN_FILENO) < 0) {
ci_debug_printf(1, "Unable to set stdin to '/dev/null'. exiting...");
exit(-1);
}
if (dup2(fd, STDOUT_FILENO) < 0) {
ci_debug_printf(1, "Unable to set stdout to '/dev/null'. exiting...");
exit(-1);
}
if (dup2(fd, STDERR_FILENO) < 0) {
ci_debug_printf(1, "Unable to set stderr to '/dev/null'. exiting...");
exit(-1);
}
close(fd);
}
#endif
int main(int argc, char **argv)
{
#if ! defined(_WIN32)
__log_error = (void (*)(void *, const char *,...)) log_server; /*set c-icap library log function */
#else
__vlog_error = vlog_server; /*set c-icap library log function */
#endif
mem_init();
init_internal_lookup_tables();
ci_acl_init();
init_http_auth();
if (init_body_system() != CI_OK) {
ci_debug_printf(1, "Can not initialize body system\n");
exit(-1);
}
ci_txt_template_init();
ci_txt_template_set_dir(DATADIR"templates");
commands_init();
if (!(CI_CONF.MAGIC_DB = ci_magic_db_load(CI_CONF.magics_file))) {
ci_debug_printf(1, "Can not load magic file %s!!!\n",
CI_CONF.magics_file);
}
init_conf_tables();
request_stats_init();
init_modules();
init_services();
config(argc, argv);
compute_my_hostname();
ci_debug_printf(2, "My hostname is:%s\n", MY_HOSTNAME);
if (!log_open()) {
ci_debug_printf(1, "Can not init loggers. Exiting.....\n");
exit(-1);
}
#if ! defined(_WIN32)
if (is_icap_running(CI_CONF.PIDFILE)) {
ci_debug_printf(1, "c-icap server already running!\n");
exit(-1);
}
if (DAEMON_MODE)
run_as_daemon();
if (!set_running_permissions(CI_CONF.RUN_USER, CI_CONF.RUN_GROUP))
exit(-1);
store_pid(CI_CONF.PIDFILE);
#endif
if (!init_server())
return -1;
post_init_modules();
post_init_services();
start_server();
clear_pid(CI_CONF.PIDFILE);
return 0;
}
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