/src/main.c
C | 1200 lines | 944 code | 122 blank | 134 comment | 180 complexity | 795f4dbc2282f8b232125e7803552aad MD5 | raw file
Possible License(s): GPL-2.0
- /*
- * main.c -- handles:
- * core event handling
- * signal handling
- * command line arguments
- * context and assert debugging
- *
- * $Id: main.c,v 1.8 2013/07/31 01:09:33 thommey Exp $
- */
- /*
- * Copyright (C) 1997 Robey Pointer
- * Copyright (C) 1999 - 2010 Eggheads Development Team
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- /*
- * The author (Robey Pointer) can be reached at: robey@netcom.com
- * NOTE: Robey is no long working on this code, there is a discussion
- * list available at eggheads@eggheads.org.
- */
- #include "main.h"
- #include <fcntl.h>
- #include <errno.h>
- #include <signal.h>
- #include <netdb.h>
- #include <setjmp.h>
- #ifdef TIME_WITH_SYS_TIME
- # include <sys/time.h>
- # include <time.h>
- #else
- # ifdef HAVE_SYS_TIME_H
- # include <sys/time.h>
- # else
- # include <time.h>
- # endif
- #endif
- #ifdef STOP_UAC /* OSF/1 complains a lot */
- # include <sys/sysinfo.h>
- # define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
- #endif
- #include "chan.h"
- #include "modules.h"
- #include "tandem.h"
- #include "bg.h"
- #ifdef DEBUG /* For debug compile */
- # include <sys/resource.h> /* setrlimit() */
- #endif
- #ifdef CYGWIN_HACKS
- # include <windows.h>
- #endif
- #ifndef _POSIX_SOURCE
- # define _POSIX_SOURCE 1 /* Solaris needs this */
- #endif
- extern char origbotname[], userfile[], botnetnick[];
- extern int dcc_total, conmask, cache_hit, cache_miss, max_logs, quick_logs,
- quiet_save;
- extern struct dcc_t *dcc;
- extern struct userrec *userlist;
- extern struct chanset_t *chanset;
- extern log_t *logs;
- extern Tcl_Interp *interp;
- extern tcl_timer_t *timer, *utimer;
- extern sigjmp_buf alarmret;
- time_t now;
- static int argc;
- static char **argv;
- /*
- * Please use the PATCH macro instead of directly altering the version
- * string from now on (it makes it much easier to maintain patches).
- * Also please read the README file regarding your rights to distribute
- * modified versions of this bot.
- */
- char egg_version[1024] = "1.8.0";
- int egg_numver = 1080000;
- char notify_new[121] = ""; /* Person to send a note to for new users */
- int default_flags = 0; /* Default user flags */
- int default_uflags = 0; /* Default user-definied flags */
- int backgrd = 1; /* Run in the background? */
- int con_chan = 0; /* Foreground: constantly display channel stats? */
- int term_z = 0; /* Foreground: use the terminal as a partyline? */
- int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
- char configfile[121] = "eggdrop.conf"; /* Default config file name */
- char pid_file[120]; /* Name of the pid file */
- char helpdir[121] = "help/"; /* Directory of help files */
- char textdir[121] = "text/"; /* Directory for text files */
- int keep_all_logs = 0; /* Never erase logfiles? */
- char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix */
- int switch_logfiles_at = 300; /* When to switch logfiles */
- time_t online_since; /* time that the bot was started */
- int make_userfile = 0; /* Using bot in userfile-creation mode? */
- char owner[121] = ""; /* Permanent owner(s) of the bot */
- int save_users_at = 0; /* Minutes past the hour to save the userfile? */
- int notify_users_at = 0; /* Minutes past the hour to notify users of notes? */
- char version[81]; /* Version info (long form) */
- char ver[41]; /* Version info (short form) */
- char egg_xtra[2048]; /* Patch info */
- int do_restart = 0; /* .restart has been called, restart ASAP */
- int resolve_timeout = 15; /* Hostname/address lookup timeout */
- char quit_msg[1024]; /* Quit message */
- /* Traffic stats */
- unsigned long otraffic_irc = 0;
- unsigned long otraffic_irc_today = 0;
- unsigned long otraffic_bn = 0;
- unsigned long otraffic_bn_today = 0;
- unsigned long otraffic_dcc = 0;
- unsigned long otraffic_dcc_today = 0;
- unsigned long otraffic_filesys = 0;
- unsigned long otraffic_filesys_today = 0;
- unsigned long otraffic_trans = 0;
- unsigned long otraffic_trans_today = 0;
- unsigned long otraffic_unknown = 0;
- unsigned long otraffic_unknown_today = 0;
- unsigned long itraffic_irc = 0;
- unsigned long itraffic_irc_today = 0;
- unsigned long itraffic_bn = 0;
- unsigned long itraffic_bn_today = 0;
- unsigned long itraffic_dcc = 0;
- unsigned long itraffic_dcc_today = 0;
- unsigned long itraffic_trans = 0;
- unsigned long itraffic_trans_today = 0;
- unsigned long itraffic_unknown = 0;
- unsigned long itraffic_unknown_today = 0;
- #ifdef DEBUG_CONTEXT
- /* Context storage for fatal crashes */
- char cx_file[16][30];
- char cx_note[16][256];
- int cx_line[16];
- int cx_ptr = 0;
- #endif
- #ifdef TLS
- int ssl_cleanup();
- #endif
- void fatal(const char *s, int recoverable)
- {
- int i;
- putlog(LOG_MISC, "*", "* %s", s);
- flushlogs();
- for (i = 0; i < dcc_total; i++)
- if (dcc[i].sock >= 0)
- killsock(dcc[i].sock);
- #ifdef TLS
- ssl_cleanup();
- #endif
- unlink(pid_file);
- if (recoverable != 1) {
- bg_send_quit(BG_ABORT);
- exit(!recoverable);
- }
- }
- int expmem_chanprog();
- int expmem_users();
- int expmem_misc();
- int expmem_dccutil();
- int expmem_botnet();
- int expmem_tcl();
- int expmem_tclhash();
- int expmem_net();
- int expmem_modules(int);
- int expmem_language();
- int expmem_tcldcc();
- int expmem_tclmisc();
- int expmem_dns();
- #ifdef TLS
- int expmem_tls();
- #endif
- /* For mem.c : calculate memory we SHOULD be using
- */
- int expected_memory(void)
- {
- int tot;
- tot = expmem_chanprog() + expmem_users() + expmem_misc() + expmem_dccutil() +
- expmem_botnet() + expmem_tcl() + expmem_tclhash() + expmem_net() +
- expmem_modules(0) + expmem_language() + expmem_tcldcc() +
- expmem_tclmisc() + expmem_dns();
- #ifdef TLS
- tot += expmem_tls();
- #endif
- return tot;
- }
- static void check_expired_dcc()
- {
- int i;
- for (i = 0; i < dcc_total; i++)
- if (dcc[i].type && dcc[i].type->timeout_val &&
- ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
- if (dcc[i].type->timeout)
- dcc[i].type->timeout(i);
- else if (dcc[i].type->eof)
- dcc[i].type->eof(i);
- else
- continue;
- /* Only timeout 1 socket per cycle, too risky for more */
- return;
- }
- }
- #ifndef DEBUG_CONTEXT
- #define write_debug() do {} while (0)
- #else
- static int nested_debug = 0;
- static void write_debug()
- {
- int x;
- char s[25];
- int y;
- if (nested_debug) {
- /* Yoicks, if we have this there's serious trouble!
- * All of these are pretty reliable, so we'll try these.
- *
- * NOTE: dont try and display context-notes in here, it's
- * _not_ safe <cybah>
- */
- x = creat("DEBUG.DEBUG", 0644);
- setsock(x, SOCK_NONSOCK);
- if (x >= 0) {
- strncpyz(s, ctime(&now), sizeof s);
- dprintf(-x, "Debug (%s) written %s\n", ver, s);
- dprintf(-x, "Please report problem to bugs@eggheads.org\n");
- dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
- dprintf(-x, "Full Patch List: %s\n", egg_xtra);
- dprintf(-x, "Context: ");
- cx_ptr = cx_ptr & 15;
- for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
- dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
- dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
- killsock(x);
- close(x);
- }
- bg_send_quit(BG_ABORT);
- exit(1); /* Dont even try & tell people about, that may
- * have caused the fault last time. */
- } else
- nested_debug = 1;
- putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
- cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
- putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
- putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
- x = creat("DEBUG", 0644);
- setsock(x, SOCK_NONSOCK);
- if (x < 0) {
- putlog(LOG_MISC, "*", "* Failed to write DEBUG");
- } else {
- strncpyz(s, ctime(&now), sizeof s);
- dprintf(-x, "Debug (%s) written %s\n", ver, s);
- dprintf(-x, "Full Patch List: %s\n", egg_xtra);
- #ifdef STATIC
- dprintf(-x, "STATICALLY LINKED\n");
- #endif
- /* info library */
- dprintf(-x, "Tcl library: %s\n",
- ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
- tcl_resultstring() : "*unknown*");
- /* info tclversion/patchlevel */
- dprintf(-x, "Tcl version: %s (header version %s)\n",
- ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
- tcl_resultstring() : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
- tcl_resultstring() : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
- "*unknown*");
- if (tcl_threaded())
- dprintf(-x, "Tcl is threaded\n");
- #ifdef IPV6
- dprintf(-x, "Compiled with IPv6 support\n");
- #else
- dprintf(-x, "Compiled without IPv6 support\n");
- #endif
- #ifdef TLS
- dprintf(-x, "Compiled with TLS support\n");
- #else
- dprintf(-x, "Compiled without TLS support\n");
- #endif
- dprintf(-x, "Configure flags: %s\n", EGG_AC_ARGS);
- #ifdef CCFLAGS
- dprintf(-x, "Compile flags: %s\n", CCFLAGS);
- #endif
- #ifdef LDFLAGS
- dprintf(-x, "Link flags: %s\n", LDFLAGS);
- #endif
- #ifdef STRIPFLAGS
- dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
- #endif
- dprintf(-x, "Context: ");
- cx_ptr = cx_ptr & 15;
- for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
- dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
- (cx_note[y][0]) ? cx_note[y] : "");
- dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
- (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
- tell_dcc(-x);
- dprintf(-x, "\n");
- debug_mem_to_dcc(-x);
- killsock(x);
- close(x);
- putlog(LOG_MISC, "*", "* Wrote DEBUG");
- }
- }
- #endif /* DEBUG_CONTEXT */
- static void got_bus(int z)
- {
- write_debug();
- fatal("BUS ERROR -- CRASHING!", 1);
- #ifdef SA_RESETHAND
- kill(getpid(), SIGBUS);
- #else
- bg_send_quit(BG_ABORT);
- exit(1);
- #endif
- }
- static void got_segv(int z)
- {
- write_debug();
- fatal("SEGMENT VIOLATION -- CRASHING!", 1);
- #ifdef SA_RESETHAND
- kill(getpid(), SIGSEGV);
- #else
- bg_send_quit(BG_ABORT);
- exit(1);
- #endif
- }
- static void got_fpe(int z)
- {
- write_debug();
- fatal("FLOATING POINT ERROR -- CRASHING!", 0);
- }
- static void got_term(int z)
- {
- /* Now we die by default on sigterm, but scripts have the chance to
- * catch the event themselves and cancel shutdown by returning 1
- */
- if (check_tcl_signal("sigterm"))
- return;
- kill_bot("ACK, I've been terminated!", "TERMINATE SIGNAL -- SIGNING OFF");
- }
- static void got_quit(int z)
- {
- if (check_tcl_signal("sigquit"))
- return;
- putlog(LOG_MISC, "*", "Received QUIT signal: restarting...");
- do_restart = -1;
- return;
- }
- static void got_hup(int z)
- {
- write_userfile(-1);
- if (check_tcl_signal("sighup"))
- return;
- putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
- do_restart = -2;
- return;
- }
- /* A call to resolver (gethostbyname, etc) timed out
- */
- static void got_alarm(int z)
- {
- siglongjmp(alarmret, 1);
- /* -Never reached- */
- }
- /* Got ILL signal -- log context and continue
- */
- static void got_ill(int z)
- {
- check_tcl_signal("sigill");
- #ifdef DEBUG_CONTEXT
- putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
- cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
- #endif
- }
- #ifdef DEBUG_CONTEXT
- /* Called from the Context macro.
- */
- void eggContext(const char *file, int line, const char *module)
- {
- char x[31], *p;
- p = strrchr(file, '/');
- if (!module) {
- strncpyz(x, p ? p + 1 : file, sizeof x);
- } else
- egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
- cx_ptr = ((cx_ptr + 1) & 15);
- strcpy(cx_file[cx_ptr], x);
- cx_line[cx_ptr] = line;
- cx_note[cx_ptr][0] = 0;
- }
- /* Called from the ContextNote macro.
- */
- void eggContextNote(const char *file, int line, const char *module,
- const char *note)
- {
- char x[31], *p;
- p = strrchr(file, '/');
- if (!module)
- strncpyz(x, p ? p + 1 : file, sizeof x);
- else
- egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
- cx_ptr = ((cx_ptr + 1) & 15);
- strcpy(cx_file[cx_ptr], x);
- cx_line[cx_ptr] = line;
- strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
- }
- #endif /* DEBUG_CONTEXT */
- #ifdef DEBUG_ASSERT
- /* Called from the Assert macro.
- */
- void eggAssert(const char *file, int line, const char *module)
- {
- write_debug();
- if (!module)
- putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
- else
- putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
- fatal("ASSERT FAILED -- CRASHING!", 1);
- }
- #endif
- static void do_arg(char *s)
- {
- char x[512], *z = x;
- int i;
- if (s[0] == '-')
- for (i = 1; i < strlen(s); i++) {
- switch (s[i]) {
- case 'n':
- backgrd = 0;
- break;
- case 'c':
- con_chan = 1;
- term_z = 0;
- break;
- case 't':
- con_chan = 0;
- term_z = 1;
- break;
- case 'm':
- make_userfile = 1;
- break;
- case 'v':
- strncpyz(x, egg_version, sizeof x);
- newsplit(&z);
- newsplit(&z);
- printf("%s\n", version);
- if (z[0])
- printf(" (patches: %s)\n", z);
- printf("Configured with: " EGG_AC_ARGS "\n");
- printf("Compiled with: ");
- #ifdef IPV6
- printf("IPv6, ");
- #endif
- #ifdef TLS
- printf("TLS, ");
- #endif
- printf("handlen=%d\n", HANDLEN);
- bg_send_quit(BG_ABORT);
- exit(0);
- break; /* this should never be reached */
- case 'h':
- printf("\n%s\n\n", version);
- printf(EGG_USAGE);
- printf("\n");
- bg_send_quit(BG_ABORT);
- exit(0);
- break; /* this should never be reached */
- }
- } else
- strncpyz(configfile, s, sizeof configfile);
- }
- void backup_userfile(void)
- {
- char s[125];
- if (quiet_save < 2)
- putlog(LOG_MISC, "*", USERF_BACKUP);
- egg_snprintf(s, sizeof s, "%s~bak", userfile);
- copyfile(userfile, s);
- }
- /* Timer info */
- static int lastmin = 99;
- static time_t then;
- static struct tm nowtm;
- /* Called once a second.
- *
- * Note: Try to not put any Context lines in here (guppy 21Mar2000).
- */
- static void core_secondly()
- {
- static int cnt = 0;
- int miltime;
- do_check_timers(&utimer); /* Secondly timers */
- cnt++;
- if (cnt >= 10) { /* Every 10 seconds */
- cnt = 0;
- check_expired_dcc();
- if (con_chan && !backgrd) {
- dprintf(DP_STDOUT, "\033[2J\033[1;1H");
- tell_verbose_status(DP_STDOUT);
- do_module_report(DP_STDOUT, 0, "server");
- do_module_report(DP_STDOUT, 0, "channels");
- tell_mem_status_dcc(DP_STDOUT);
- }
- }
- egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
- if (nowtm.tm_min != lastmin) {
- int i = 0;
- /* Once a minute */
- lastmin = (lastmin + 1) % 60;
- call_hook(HOOK_MINUTELY);
- check_expired_ignores();
- autolink_cycle(NULL); /* Attempt autolinks */
- /* In case for some reason more than 1 min has passed: */
- while (nowtm.tm_min != lastmin) {
- /* Timer drift, dammit */
- debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
- i++;
- lastmin = (lastmin + 1) % 60;
- call_hook(HOOK_MINUTELY);
- }
- if (i > 1)
- putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
- miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
- if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
- call_hook(HOOK_5MINUTELY);
- check_botnet_pings();
- if (!quick_logs) {
- flushlogs();
- check_logsize();
- }
- if (!miltime) { /* At midnight */
- char s[25];
- int j;
- strncpyz(s, ctime(&now), sizeof s);
- if (quiet_save < 3)
- putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
- call_hook(HOOK_BACKUP);
- for (j = 0; j < max_logs; j++) {
- if (logs[j].filename != NULL && logs[j].f != NULL) {
- fclose(logs[j].f);
- logs[j].f = NULL;
- }
- }
- }
- }
- if (nowtm.tm_min == notify_users_at)
- call_hook(HOOK_HOURLY);
- /* These no longer need checking since they are all check vs minutely
- * settings and we only get this far on the minute.
- */
- if (miltime == switch_logfiles_at) {
- call_hook(HOOK_DAILY);
- if (!keep_all_logs) {
- if (quiet_save < 3)
- putlog(LOG_MISC, "*", MISC_LOGSWITCH);
- for (i = 0; i < max_logs; i++)
- if (logs[i].filename) {
- char s[1024];
- if (logs[i].f) {
- fclose(logs[i].f);
- logs[i].f = NULL;
- }
- egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
- unlink(s);
- movefile(logs[i].filename, s);
- }
- }
- }
- }
- }
- static void core_minutely()
- {
- check_tcl_time(&nowtm);
- check_tcl_cron(&nowtm);
- do_check_timers(&timer);
- if (quick_logs != 0) {
- flushlogs();
- check_logsize();
- }
- }
- static void core_hourly()
- {
- write_userfile(-1);
- }
- static void event_rehash()
- {
- check_tcl_event("rehash");
- }
- static void event_prerehash()
- {
- check_tcl_event("prerehash");
- }
- static void event_save()
- {
- check_tcl_event("save");
- }
- static void event_logfile()
- {
- check_tcl_event("logfile");
- }
- static void event_resettraffic()
- {
- otraffic_irc += otraffic_irc_today;
- itraffic_irc += itraffic_irc_today;
- otraffic_bn += otraffic_bn_today;
- itraffic_bn += itraffic_bn_today;
- otraffic_dcc += otraffic_dcc_today;
- itraffic_dcc += itraffic_dcc_today;
- otraffic_unknown += otraffic_unknown_today;
- itraffic_unknown += itraffic_unknown_today;
- otraffic_trans += otraffic_trans_today;
- itraffic_trans += itraffic_trans_today;
- otraffic_irc_today = otraffic_bn_today = 0;
- otraffic_dcc_today = otraffic_unknown_today = 0;
- itraffic_irc_today = itraffic_bn_today = 0;
- itraffic_dcc_today = itraffic_unknown_today = 0;
- itraffic_trans_today = otraffic_trans_today = 0;
- }
- static void event_loaded()
- {
- check_tcl_event("loaded");
- }
- void kill_tcl();
- extern module_entry *module_list;
- void restart_chons();
- #ifdef STATIC
- void check_static(char *, char *(*)());
- #include "mod/static.h"
- #endif
- int init_threaddata(int);
- int init_mem();
- int init_userent();
- int init_misc();
- int init_bots();
- int init_modules();
- int init_tcl(int, char **);
- int init_language(int);
- #ifdef TLS
- int ssl_init();
- #endif
- static void patch(const char *str)
- {
- char *p = strchr(egg_version, '+');
- if (!p)
- p = &egg_version[strlen(egg_version)];
- sprintf(p, "+%s", str);
- egg_numver++;
- sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
- }
- static inline void garbage_collect(void)
- {
- static u_8bit_t run_cnt = 0;
- if (run_cnt == 3)
- garbage_collect_tclhash();
- else
- run_cnt++;
- }
- int mainloop(int toplevel)
- {
- static int socket_cleanup = 0;
- int xx, i, eggbusy = 1, tclbusy = 0;
- char buf[520];
- /* Lets move some of this here, reducing the numer of actual
- * calls to periodic_timers
- */
- now = time(NULL);
- /*
- * FIXME: Get rid of this, it's ugly and wastes lots of cpu.
- *
- * pre-1.3.0 Eggdrop had random() in the once a second block below.
- *
- * This attempts to keep random() more random by constantly
- * calling random() and updating the state information.
- */
- random(); /* Woop, lets really jumble things */
- /* If we want to restart, we have to unwind to the toplevel.
- * Tcl will Panic if we kill the interp with Tcl_Eval in progress.
- * This is done by returning -1 in tickle_WaitForEvent.
- */
- if (do_restart && do_restart != -2 && !toplevel)
- return -1;
- /* Once a second */
- if (now != then) {
- call_hook(HOOK_SECONDLY);
- then = now;
- }
- /* Only do this every so often. */
- if (!socket_cleanup) {
- socket_cleanup = 5;
- /* Remove dead dcc entries. */
- dcc_remove_lost();
- /* Check for server or dcc activity. */
- dequeue_sockets();
- } else
- socket_cleanup--;
- /* Free unused structures. */
- garbage_collect();
- xx = sockgets(buf, &i);
- if (xx >= 0) { /* Non-error */
- int idx;
- for (idx = 0; idx < dcc_total; idx++)
- if (dcc[idx].sock == xx) {
- if (dcc[idx].type && dcc[idx].type->activity) {
- /* Traffic stats */
- if (dcc[idx].type->name) {
- if (!strncmp(dcc[idx].type->name, "BOT", 3))
- itraffic_bn_today += strlen(buf) + 1;
- else if (!strcmp(dcc[idx].type->name, "SERVER"))
- itraffic_irc_today += strlen(buf) + 1;
- else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
- itraffic_dcc_today += strlen(buf) + 1;
- else if (!strncmp(dcc[idx].type->name, "FILES", 5))
- itraffic_dcc_today += strlen(buf) + 1;
- else if (!strcmp(dcc[idx].type->name, "SEND"))
- itraffic_trans_today += strlen(buf) + 1;
- else if (!strncmp(dcc[idx].type->name, "GET", 3))
- itraffic_trans_today += strlen(buf) + 1;
- else
- itraffic_unknown_today += strlen(buf) + 1;
- }
- dcc[idx].type->activity(idx, buf, i);
- } else
- putlog(LOG_MISC, "*",
- "!!! untrapped dcc activity: type %s, sock %d",
- dcc[idx].type->name, dcc[idx].sock);
- break;
- }
- } else if (xx == -1) { /* EOF from someone */
- int idx;
- if (i == STDOUT && !backgrd)
- fatal("END OF FILE ON TERMINAL", 0);
- for (idx = 0; idx < dcc_total; idx++)
- if (dcc[idx].sock == i) {
- if (dcc[idx].type && dcc[idx].type->eof)
- dcc[idx].type->eof(idx);
- else {
- putlog(LOG_MISC, "*",
- "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
- i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
- killsock(i);
- lostdcc(idx);
- }
- idx = dcc_total + 1;
- }
- if (idx == dcc_total) {
- putlog(LOG_MISC, "*",
- "(@) EOF socket %d, not a dcc socket, not anything.", i);
- close(i);
- killsock(i);
- }
- } else if (xx == -2 && errno != EINTR) { /* select() error */
- putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
- for (i = 0; i < dcc_total; i++) {
- if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno == EBADF)) {
- putlog(LOG_MISC, "*",
- "DCC socket %d (type %d, name '%s') expired -- pfft",
- dcc[i].sock, dcc[i].type, dcc[i].nick);
- killsock(dcc[i].sock);
- lostdcc(i);
- i--;
- }
- }
- } else if (xx == -3) {
- call_hook(HOOK_IDLE);
- socket_cleanup = 0; /* If we've been idle, cleanup & flush */
- eggbusy = 0;
- } else if (xx == -5) {
- eggbusy = 0;
- tclbusy = 1;
- }
- if (do_restart) {
- if (do_restart == -2)
- rehash();
- else if (!toplevel)
- return -1; /* Unwind to toplevel before restarting */
- else {
- /* Unload as many modules as possible */
- int f = 1;
- module_entry *p;
- Function startfunc;
- char name[256];
- /* oops, I guess we should call this event before tcl is restarted */
- check_tcl_event("prerestart");
- while (f) {
- f = 0;
- for (p = module_list; p != NULL; p = p->next) {
- dependancy *d = dependancy_list;
- int ok = 1;
- while (ok && d) {
- if (d->needed == p)
- ok = 0;
- d = d->next;
- }
- if (ok) {
- strcpy(name, p->name);
- if (module_unload(name, botnetnick) == NULL) {
- f = 1;
- break;
- }
- }
- }
- }
- /* Make sure we don't have any modules left hanging around other than
- * "eggdrop" and the two that are supposed to be.
- */
- for (f = 0, p = module_list; p; p = p->next) {
- if (strcmp(p->name, "eggdrop") && strcmp(p->name, "encryption") &&
- strcmp(p->name, "uptime")) {
- f++;
- }
- }
- if (f != 0) {
- putlog(LOG_MISC, "*", MOD_STAGNANT);
- }
- flushlogs();
- kill_tcl();
- init_tcl(argc, argv);
- init_language(0);
- /* this resets our modules which we didn't unload (encryption and uptime) */
- for (p = module_list; p; p = p->next) {
- if (p->funcs) {
- startfunc = p->funcs[MODCALL_START];
- startfunc(NULL);
- }
- }
- rehash();
- #ifdef TLS
- ssl_cleanup();
- ssl_init();
- #endif
- restart_chons();
- call_hook(HOOK_LOADED);
- }
- eggbusy = 1;
- do_restart = 0;
- }
- if (!eggbusy) {
- /* Process all pending tcl events */
- # ifdef REPLACE_NOTIFIER
- if (Tcl_ServiceAll())
- tclbusy = 1;
- # else
- while (Tcl_DoOneEvent(TCL_DONT_WAIT | TCL_ALL_EVENTS))
- tclbusy = 1;
- # endif /* REPLACE_NOTIFIER */
- }
- return (eggbusy || tclbusy);
- }
- int main(int arg_c, char **arg_v)
- {
- int i, xx;
- char s[25];
- FILE *f;
- struct sigaction sv;
- struct chanset_t *chan;
- #ifdef DEBUG
- struct rlimit cdlim;
- #endif
- #ifdef STOP_UAC
- int nvpair[2];
- #endif
- /* Make sure it can write core, if you make debug. Else it's pretty
- * useless (dw)
- *
- * Only allow unlimited size core files when compiled with DEBUG defined.
- * This is not a good idea for normal builds -- in these cases, use the
- * default system resource limits instead.
- */
- #ifdef DEBUG
- cdlim.rlim_cur = RLIM_INFINITY;
- cdlim.rlim_max = RLIM_INFINITY;
- setrlimit(RLIMIT_CORE, &cdlim);
- #endif
- #ifdef DEBUG_CONTEXT
- /* Initialise context list */
- for (i = 0; i < 16; i++)
- Context;
- #endif
- /* Include patch.h header for patch("...") */
- #include "patch.h"
- argc = arg_c;
- argv = arg_v;
- /* Version info! */
- egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
- egg_snprintf(version, sizeof version,
- "Eggdrop v%s (C) 1997 Robey Pointer (C) 2010 Eggheads",
- egg_version);
- /* Now add on the patchlevel (for Tcl) */
- sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
- strcat(egg_version, egg_xtra);
- /* For OSF/1 */
- #ifdef STOP_UAC
- /* Don't print "unaligned access fixup" warning to the user */
- nvpair[0] = SSIN_UACPROC;
- nvpair[1] = UAC_NOPRINT;
- setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
- #endif
- /* Set up error traps: */
- sv.sa_handler = got_bus;
- sigemptyset(&sv.sa_mask);
- #ifdef SA_RESETHAND
- sv.sa_flags = SA_RESETHAND;
- #else
- sv.sa_flags = 0;
- #endif
- sigaction(SIGBUS, &sv, NULL);
- sv.sa_handler = got_segv;
- sigaction(SIGSEGV, &sv, NULL);
- #ifdef SA_RESETHAND
- sv.sa_flags = 0;
- #endif
- sv.sa_handler = got_fpe;
- sigaction(SIGFPE, &sv, NULL);
- sv.sa_handler = got_term;
- sigaction(SIGTERM, &sv, NULL);
- sv.sa_handler = got_hup;
- sigaction(SIGHUP, &sv, NULL);
- sv.sa_handler = got_quit;
- sigaction(SIGQUIT, &sv, NULL);
- sv.sa_handler = SIG_IGN;
- sigaction(SIGPIPE, &sv, NULL);
- sv.sa_handler = got_ill;
- sigaction(SIGILL, &sv, NULL);
- sv.sa_handler = got_alarm;
- sigaction(SIGALRM, &sv, NULL);
- /* Initialize variables and stuff */
- now = time(NULL);
- chanset = NULL;
- egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
- lastmin = nowtm.tm_min;
- srandom((unsigned int) (now % (getpid() + getppid())));
- init_mem();
- init_language(1);
- if (argc > 1)
- for (i = 1; i < argc; i++)
- do_arg(argv[i]);
- printf("\n%s\n", version);
- #ifndef CYGWIN_HACKS
- /* Don't allow eggdrop to run as root
- * This check isn't useful under cygwin and has been
- * reported to cause trouble in some situations.
- */
- if (((int) getuid() == 0) || ((int) geteuid() == 0))
- fatal("ERROR: Eggdrop will not run as root!", 0);
- #endif
- #ifndef REPLACE_NOTIFIER
- init_threaddata(1);
- #endif
- init_userent();
- init_misc();
- init_bots();
- init_modules();
- if (backgrd)
- bg_prepare_split();
- init_tcl(argc, argv);
- init_language(0);
- #ifdef STATIC
- link_statics();
- #endif
- strncpyz(s, ctime(&now), sizeof s);
- strcpy(&s[11], &s[20]);
- putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
- chanprog();
- if (!encrypt_pass) {
- printf(MOD_NOCRYPT);
- bg_send_quit(BG_ABORT);
- exit(1);
- }
- i = 0;
- for (chan = chanset; chan; chan = chan->next)
- i++;
- putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
- botnetnick, i, count_users(userlist));
- #ifdef TLS
- ssl_init();
- #endif
- cache_miss = 0;
- cache_hit = 0;
- if (!pid_file[0])
- egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
- /* Check for pre-existing eggdrop! */
- f = fopen(pid_file, "r");
- if (f != NULL) {
- fgets(s, 10, f);
- xx = atoi(s);
- i = kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
- * is used */
- if (i == 0 || errno != ESRCH) {
- printf(EGG_RUNNING1, botnetnick);
- printf(EGG_RUNNING2, pid_file);
- bg_send_quit(BG_ABORT);
- exit(1);
- }
- }
- /* Move into background? */
- if (backgrd) {
- bg_do_split();
- } else { /* !backgrd */
- xx = getpid();
- if (xx != 0) {
- FILE *fp;
- /* Write pid to file */
- unlink(pid_file);
- fp = fopen(pid_file, "w");
- if (fp != NULL) {
- fprintf(fp, "%u\n", xx);
- if (fflush(fp)) {
- /* Let the bot live since this doesn't appear to be a botchk */
- printf(EGG_NOWRITE, pid_file);
- fclose(fp);
- unlink(pid_file);
- } else
- fclose(fp);
- } else
- printf(EGG_NOWRITE, pid_file);
- }
- }
- use_stderr = 0; /* Stop writing to stderr now */
- if (backgrd) {
- /* Ok, try to disassociate from controlling terminal (finger cross) */
- #ifdef HAVE_SETPGID
- setpgid(0, 0);
- #endif
- /* Tcl wants the stdin, stdout and stderr file handles kept open. */
- freopen("/dev/null", "r", stdin);
- freopen("/dev/null", "w", stdout);
- freopen("/dev/null", "w", stderr);
- #ifdef CYGWIN_HACKS
- FreeConsole();
- #endif
- }
- /* Terminal emulating dcc chat */
- if (!backgrd && term_z) {
- int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
- getvhost(&dcc[n].sockname, AF_INET);
- dcc[n].sock = STDOUT;
- dcc[n].timeval = now;
- dcc[n].u.chat->con_flags = conmask;
- dcc[n].u.chat->strip_flags = STRIP_ALL;
- dcc[n].status = STAT_ECHO;
- strcpy(dcc[n].nick, "HQ");
- strcpy(dcc[n].host, "llama@console");
- /* HACK: Workaround not to pass literal "HQ" as a non-const arg */
- dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
- /* Make sure there's an innocuous HQ user if needed */
- if (!dcc[n].user) {
- userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
- dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
- }
- setsock(STDOUT, 0); /* Entry in net table */
- dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
- dcc_chatter(n);
- }
- then = now;
- online_since = now;
- autolink_cycle(NULL); /* Hurry and connect to tandem bots */
- add_help_reference("cmds1.help");
- add_help_reference("cmds2.help");
- add_help_reference("core.help");
- add_hook(HOOK_SECONDLY, (Function) core_secondly);
- add_hook(HOOK_MINUTELY, (Function) core_minutely);
- add_hook(HOOK_HOURLY, (Function) core_hourly);
- add_hook(HOOK_REHASH, (Function) event_rehash);
- add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
- add_hook(HOOK_USERFILE, (Function) event_save);
- add_hook(HOOK_BACKUP, (Function) backup_userfile);
- add_hook(HOOK_DAILY, (Function) event_logfile);
- add_hook(HOOK_DAILY, (Function) event_resettraffic);
- add_hook(HOOK_LOADED, (Function) event_loaded);
- call_hook(HOOK_LOADED);
- debug0("main: entering loop");
- while (1) {
- mainloop(1);
- }
- }