-const char jcc_rcs[] = "$Id: jcc.c,v 1.65 2002/03/03 14:49:11 oes Exp $";
+const char jcc_rcs[] = "$Id: jcc.c,v 1.66 2002/03/03 15:06:55 oes Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/jcc.c,v $
*
* Revisions :
* $Log: jcc.c,v $
+ * Revision 1.66 2002/03/03 15:06:55 oes
+ * Re-enabled automatic config reloading
+ *
* Revision 1.65 2002/03/03 14:49:11 oes
* Fixed CLF logging: Now uses client's original HTTP request
*
#endif
-#ifdef _DEBUG
-int ldebug = 0;
-#endif
-
#include "project.h"
#include "list.h"
#include "jcc.h"
const char jcc_h_rcs[] = JCC_H_VERSION;
const char project_h_rcs[] = PROJECT_H_VERSION;
+int no_daemon = 0;
struct client_state clients[1];
struct file_list files[1];
#if defined(unix)
const char *basedir;
+const char *pidfile = NULL;
+int received_hup_signal = 0;
#endif /* defined unix */
/* The vanilla wafer. */
#if !defined(_WIN32) && !defined(__OS2__) && !defined(AMIGA)
/*********************************************************************
*
- * Function : SIG_handler
+ * Function : sig_handler
*
* Description : Signal handler for different signals.
- * see man kill, signal ..
+ * Exit gracefully on ABRT, TERM and INT
+ * or set a flag that will cause the errlog
+ * to be reopened by the main thread on HUP.
*
* Parameters :
- * 1 : signal - the signal cause this function to call
+ * 1 : the_signal - the signal cause this function to call
*
* Returns : -
*
*********************************************************************/
-static void SIG_handler( int signal )
+static void sig_handler(int the_signal)
{
- switch( signal )
+ switch(the_signal)
{
- case SIGHUP:
- log_error(LOG_LEVEL_INFO, "ignoring HUP signal (%d)", signal);
- break;
+ case SIGABRT:
case SIGTERM:
- log_error(LOG_LEVEL_INFO, "exiting by signal %d .. bye", signal);
-
+ case SIGINT:
+ log_error(LOG_LEVEL_INFO, "exiting by signal %d .. bye", the_signal);
#if defined(unix)
- deletePidFile();
+ unlink(pidfile);
#endif /* unix */
-
- exit( signal );
+ exit(the_signal);
break;
+ case SIGHUP:
+ received_hup_signal = 1;
+ break;
+
default:
- /* want to exit jb so use FATAL */
- log_error(LOG_LEVEL_FATAL, "SIG_handler: receive signal %d without handler.", signal);
+ /*
+ * We shouldn't be here, unless we catch signals
+ * in main() that we can't handle here!
+ */
+ log_error(LOG_LEVEL_FATAL, "sig_handler: exiting on unexpected signal %d", the_signal);
}
return;
+
}
#endif
+
+
/*********************************************************************
*
* Function : chat
#endif
+/*********************************************************************
+ *
+ * Function : usage
+ *
+ * Description : Print usage info & exit.
+ *
+ * Parameters : Pointer to argv[0] for identifying ourselves
+ *
+ * Returns : No. ,-)
+ *
+ *********************************************************************/
+void usage(const char *myname)
+{
+ printf("JunkBuster proxy version " VERSION " (" HOME_PAGE_URL ")\n"
+ "Usage: %s [--no-daemon] [--pidfile pidfile] [--help] [configfile]\n"
+ "Aborting.\n", myname);
+
+ exit(2);
+
+}
+
+
/*********************************************************************
*
* Function : main
int main(int argc, const char *argv[])
#endif
{
- int argc_pos = 1;
+ int argc_pos = 0;
+
+ Argc = argc;
+ Argv = argv;
configfile =
#if !defined(_WIN32)
#endif
;
-#if !defined(_WIN32) || defined(_WIN_CONSOLE)
- if ((argc >= 2) && (strcmp(argv[1], "--help")==0))
- {
- printf("JunkBuster proxy version " VERSION ".\n\n"
- "Usage: %s [configfile]\n\n"
- "See " HOME_PAGE_URL " for details.\n"
- "This program is distributed under the GNU GPL, version 2 or later.\n",
- argv[0]);
- exit(2);
- }
- if ((argc >= 2) && (strcmp(argv[1], "--version")==0))
- {
- printf(VERSION "\n");
- exit(2);
- }
-#ifdef _DEBUG
- if ((argc >= 2) && (strcmp(argv[1], "-d")==0))
+ /*
+ * Parse the command line arguments
+ */
+ while (++argc_pos < argc)
{
- ldebug++;
- argc_pos++;
- fprintf(stderr,"debugging enabled..\n");
- }
-#endif /* _DEBUG */
+#if !defined(_WIN32) || defined(_WIN_CONSOLE)
+
+ if (strcmp(argv[argc_pos], "--help") == 0)
+ {
+ usage(argv[0]);
+ }
+
+ else if(strcmp(argv[argc_pos], "--version") == 0)
+ {
+ printf("Junkbuster version " VERSION " (" HOME_PAGE_URL ")\n");
+ exit(0);
+ }
+
+ else if (strcmp(argv[argc_pos], "--no-daemon" ) == 0)
+ {
+ no_daemon = 1;
+ }
+
+ else if (strcmp(argv[argc_pos], "--pidfile" ) == 0)
+ {
+ if (++argc_pos == argc) usage(argv[0]);
+ pidfile = strdup(argv[argc_pos]);
+ }
+
#endif /* !defined(_WIN32) || defined(_WIN_CONSOLE) */
- Argc = argc;
- Argv = argv;
+ else
+ {
+ configfile = argv[argc_pos];
+ }
- if (argc > argc_pos )
- {
- configfile = argv[argc_pos];
- }
+ } /* -END- while (more arguments) */
#if defined(unix)
if ( *configfile != '/' )
InitWin32();
#endif
-
+ /*
+ * Unix signal handling
+ *
+ * Catch the abort, interrupt and terminate signals for a graceful exit
+ * Catch the hangup signal so the errlog can be reopened.
+ * Ignore the broken pipe and child signals
+ * FIXME: Isn't ignoring the default for SIGCHLD anyway and why ignore SIGPIPE?
+ */
#if !defined(_WIN32) && !defined(__OS2__) && !defined(AMIGA)
{
- int sig;
- struct sigaction action;
+ int idx;
+ const int catched_signals[] = { SIGABRT, SIGTERM, SIGINT, SIGHUP, 0 };
+ const int ignored_signals[] = { SIGPIPE, SIGCHLD, 0 };
- for ( sig = 1; sig < 16; sig++ )
+ for (idx = 0; catched_signals[idx] != 0; idx++)
{
- switch( sig )
+ if (signal(catched_signals[idx], sig_handler) == SIG_ERR)
{
- case 9:
- case SIGPIPE:
- case SIGCHLD:
- case SIGHUP:
- continue;
+ log_error(LOG_LEVEL_FATAL, "Can't set signal-handler for signal %d: %E", catched_signals[idx]);
}
- if ( signal(sig, SIG_handler) == SIG_ERR )
- log_error(LOG_LEVEL_FATAL, "Can't set signal-handler for signal %d: %E", sig);
}
- /* SIG_IGN */
- if ( signal(SIGPIPE, SIG_IGN) == SIG_ERR )
- log_error(LOG_LEVEL_FATAL, "Can't set SIG_IGN to SIGPIPE: %E");
- if ( signal(SIGCHLD, SIG_IGN) == SIG_ERR )
- log_error(LOG_LEVEL_FATAL, "Can't set SIG_IGN to SIGCHLD: %E");
- /* log file reload */
- if (!sigaction(SIGHUP,NULL,&action))
- {
- action.sa_handler = &SIG_handler;
- action.sa_flags = SA_RESTART;
- if ( sigaction(SIGHUP,&action,NULL))
- log_error(LOG_LEVEL_FATAL, "Can't set signal-handler for signal SIGHUP: %E");
- }
- else
+ for (idx = 0; ignored_signals[idx] != 0; idx++)
{
- perror("sigaction");
- log_error(LOG_LEVEL_FATAL, "Can't get sigaction data for signal SIGHUP");
+ if (signal(ignored_signals[idx], SIG_IGN) == SIG_ERR)
+ {
+ log_error(LOG_LEVEL_FATAL, "Can't set ignore-handler for signal %d: %E", ignored_signals[idx]);
+ }
}
-
-}
+}
#else /* ifdef _WIN32 */
# ifdef _WIN_CONSOLE
/*
/* Initialize the CGI subsystem */
cgi_init_error_messages();
+ /*
+ * If runnig on unix and without the --nodaemon
+ * option, become a daemon. I.e. fork, detach
+ * from tty and get process group leadership
+ */
#if defined(unix)
{
pid_t pid = 0;
int fd;
#endif
- /*
- * we make us a real daemon
- */
-#ifdef _DEBUG
- if ( !ldebug)
-#endif
- pid = fork();
- if ( pid < 0 ) /* error */
+ if (!no_daemon)
{
- perror("fork");
- exit( 3 );
- }
- else if ( pid != 0 ) /* parent */
- {
- int status;
- pid_t wpid;
- /*
- * must check for errors
- * child died due to missing files aso
- */
- sleep( 1 );
- wpid = waitpid( pid, &status, WNOHANG );
- if ( wpid != 0 )
+ pid = fork();
+
+ if ( pid < 0 ) /* error */
{
- exit( 1 );
+ perror("fork");
+ exit( 3 );
}
- exit( 0 );
- }
- /* child */
+ else if ( pid != 0 ) /* parent */
+ {
+ int status;
+ pid_t wpid;
+ /*
+ * must check for errors
+ * child died due to missing files aso
+ */
+ sleep( 1 );
+ wpid = waitpid( pid, &status, WNOHANG );
+ if ( wpid != 0 )
+ {
+ exit( 1 );
+ }
+ exit( 0 );
+ }
+ /* child */
#if 1
- /* Should be more portable, but not as well tested */
- setsid();
+ /* Should be more portable, but not as well tested */
+ setsid();
#else /* !1 */
#ifdef __FreeBSD__
- setpgrp(0,0);
+ setpgrp(0,0);
#else /* ndef __FreeBSD__ */
- setpgrp();
+ setpgrp();
#endif /* ndef __FreeBSD__ */
- fd = open("/dev/tty", O_RDONLY);
- if ( fd )
- {
- /* no error check here */
- ioctl( fd, TIOCNOTTY,0 );
- close ( fd );
- }
-#endif /* !1 */
- /* should close stderr (fd 2) here too, but the test for existence
- ** and load config file is done in listen_loop() and puts
- ** some messages on stderr there.
- */
-#ifdef _DEBUG
- if ( !ldebug )
- {
+ fd = open("/dev/tty", O_RDONLY);
+ if ( fd )
+ {
+ /* no error check here */
+ ioctl( fd, TIOCNOTTY,0 );
+ close ( fd );
+ }
+#endif /* 1 */
+ /* FIXME: should close stderr (fd 2) here too, but the test
+ * for existence
+ * and load config file is done in listen_loop() and puts
+ * some messages on stderr there.
+ */
+
close( 0 );
close( 1 );
- }
-#else
- close( 0 );
- close( 1 );
-#endif /* _DEBUG */
- chdir("/");
+ chdir("/");
- writePidFile();
+ write_pid_file();
+
+ } /* -END- if (!no_daemon) */
}
#endif /* defined unix */
/* zombie children */
}
#endif /* !defined(FEATURE_PTHREAD) && !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) */
+
+ /*
+ * Free data that was used by died threads
+ */
sweep();
+ /*
+ * Re-open the errlog after HUP signal
+ */
+ if (received_hup_signal)
+ {
+ init_error_log(Argv[0], config->logfile, config->debug);
+ received_hup_signal = 0;
+ }
+
if ( NULL == (csp = (struct client_state *) zalloc(sizeof(*csp))) )
{
log_error(LOG_LEVEL_FATAL, "malloc(%d) for csp failed: %E", sizeof(*csp));
projects / privoxy.git / commitdiff