diff options
Diffstat (limited to 'unix.c')
| -rw-r--r-- | unix.c | 301 |
1 files changed, 142 insertions, 159 deletions
@@ -1,4 +1,4 @@ - /********************************************************************\ +/********************************************************************\ * BitlBee -- An IRC to other IM-networks gateway * * * * Copyright 2002-2012 Wilmer van der Gaast and others * @@ -45,250 +45,233 @@ #include "otr.h" #endif -global_t global; /* Against global namespace pollution */ +global_t global; /* Against global namespace pollution */ static int signal_shutdown_pipe[2] = { -1, -1 }; -static void sighandler_shutdown( int signal ); -static void sighandler_crash( int signal ); +static void sighandler_shutdown(int signal); +static void sighandler_crash(int signal); -static int crypt_main( int argc, char *argv[] ); +static int crypt_main(int argc, char *argv[]); -int main( int argc, char *argv[] ) +int main(int argc, char *argv[]) { int i = 0; char *old_cwd = NULL; struct sigaction sig, old; - + /* Required to make iconv to ASCII//TRANSLIT work. This makes BitlBee system-locale-sensitive. :-( */ - setlocale( LC_CTYPE, "" ); - - if( argc > 1 && strcmp( argv[1], "-x" ) == 0 ) - return crypt_main( argc, argv ); - + setlocale(LC_CTYPE, ""); + + if (argc > 1 && strcmp(argv[1], "-x") == 0) { + return crypt_main(argc, argv); + } + log_init(); - - global.conf_file = g_strdup( CONF_FILE_DEF ); - global.conf = conf_load( argc, argv ); - if( global.conf == NULL ) - return( 1 ); - + + global.conf_file = g_strdup(CONF_FILE_DEF); + global.conf = conf_load(argc, argv); + if (global.conf == NULL) { + return(1); + } + b_main_init(); - + /* libpurple doesn't like fork()s after initializing itself, so if we use it, do this init a little later (in case we're running in ForkDaemon mode). */ #ifndef WITH_PURPLE nogaim_init(); #endif - + #ifdef OTR_BI - otr_init(); + otr_init(); #endif - - global.helpfile = g_strdup( HELP_FILE ); - if( help_init( &global.help, global.helpfile ) == NULL ) - log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE ); - - global.storage = storage_init( global.conf->primary_storage, global.conf->migrate_storage ); - if( global.storage == NULL ) - { - log_message( LOGLVL_ERROR, "Unable to load storage backend '%s'", global.conf->primary_storage ); - return( 1 ); + + global.helpfile = g_strdup(HELP_FILE); + if (help_init(&global.help, global.helpfile) == NULL) { + log_message(LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE); } - - if( global.conf->runmode == RUNMODE_INETD ) - { - log_link( LOGLVL_ERROR, LOGOUTPUT_IRC ); - log_link( LOGLVL_WARNING, LOGOUTPUT_IRC ); - - i = bitlbee_inetd_init(); - log_message( LOGLVL_INFO, "%s %s starting in inetd mode.", PACKAGE, BITLBEE_VERSION ); + global.storage = storage_init(global.conf->primary_storage, global.conf->migrate_storage); + if (global.storage == NULL) { + log_message(LOGLVL_ERROR, "Unable to load storage backend '%s'", global.conf->primary_storage); + return(1); } - else if( global.conf->runmode == RUNMODE_DAEMON ) - { - log_link( LOGLVL_ERROR, LOGOUTPUT_CONSOLE ); - log_link( LOGLVL_WARNING, LOGOUTPUT_CONSOLE ); + + if (global.conf->runmode == RUNMODE_INETD) { + log_link(LOGLVL_ERROR, LOGOUTPUT_IRC); + log_link(LOGLVL_WARNING, LOGOUTPUT_IRC); + + i = bitlbee_inetd_init(); + log_message(LOGLVL_INFO, "%s %s starting in inetd mode.", PACKAGE, BITLBEE_VERSION); + + } else if (global.conf->runmode == RUNMODE_DAEMON) { + log_link(LOGLVL_ERROR, LOGOUTPUT_CONSOLE); + log_link(LOGLVL_WARNING, LOGOUTPUT_CONSOLE); i = bitlbee_daemon_init(); - log_message( LOGLVL_INFO, "%s %s starting in daemon mode.", PACKAGE, BITLBEE_VERSION ); - } - else if( global.conf->runmode == RUNMODE_FORKDAEMON ) - { - log_link( LOGLVL_ERROR, LOGOUTPUT_CONSOLE ); - log_link( LOGLVL_WARNING, LOGOUTPUT_CONSOLE ); + log_message(LOGLVL_INFO, "%s %s starting in daemon mode.", PACKAGE, BITLBEE_VERSION); + } else if (global.conf->runmode == RUNMODE_FORKDAEMON) { + log_link(LOGLVL_ERROR, LOGOUTPUT_CONSOLE); + log_link(LOGLVL_WARNING, LOGOUTPUT_CONSOLE); /* In case the operator requests a restart, we need this. */ - old_cwd = g_malloc( 256 ); - if( getcwd( old_cwd, 255 ) == NULL ) - { - log_message( LOGLVL_WARNING, "Could not save current directory: %s", strerror( errno ) ); - g_free( old_cwd ); + old_cwd = g_malloc(256); + if (getcwd(old_cwd, 255) == NULL) { + log_message(LOGLVL_WARNING, "Could not save current directory: %s", strerror(errno)); + g_free(old_cwd); old_cwd = NULL; } - + i = bitlbee_daemon_init(); - log_message( LOGLVL_INFO, "%s %s starting in forking daemon mode.", PACKAGE, BITLBEE_VERSION ); + log_message(LOGLVL_INFO, "%s %s starting in forking daemon mode.", PACKAGE, BITLBEE_VERSION); + } + if (i != 0) { + return(i); } - if( i != 0 ) - return( i ); - - if( ( global.conf->user && *global.conf->user ) && - ( global.conf->runmode == RUNMODE_DAEMON || - global.conf->runmode == RUNMODE_FORKDAEMON ) && - ( !getuid() || !geteuid() ) ) - { + + if ((global.conf->user && *global.conf->user) && + (global.conf->runmode == RUNMODE_DAEMON || + global.conf->runmode == RUNMODE_FORKDAEMON) && + (!getuid() || !geteuid())) { struct passwd *pw = NULL; - pw = getpwnam( global.conf->user ); - if( pw ) - { - initgroups( global.conf->user, pw->pw_gid ); - setgid( pw->pw_gid ); - setuid( pw->pw_uid ); - } - else - { - log_message( LOGLVL_WARNING, "Failed to look up user %s.", global.conf->user ); + pw = getpwnam(global.conf->user); + if (pw) { + initgroups(global.conf->user, pw->pw_gid); + setgid(pw->pw_gid); + setuid(pw->pw_uid); + } else { + log_message(LOGLVL_WARNING, "Failed to look up user %s.", global.conf->user); } } - + /* Catch some signals to tell the user what's happening before quitting */ - memset( &sig, 0, sizeof( sig ) ); + memset(&sig, 0, sizeof(sig)); sig.sa_handler = SIG_IGN; - sigaction( SIGCHLD, &sig, &old ); - sigaction( SIGPIPE, &sig, &old ); + sigaction(SIGCHLD, &sig, &old); + sigaction(SIGPIPE, &sig, &old); sig.sa_flags = SA_RESETHAND; sig.sa_handler = sighandler_crash; - sigaction( SIGSEGV, &sig, &old ); + sigaction(SIGSEGV, &sig, &old); /* Use a pipe for SIGTERM/SIGINT so the actual signal handler doesn't do anything unsafe */ - if ( pipe( signal_shutdown_pipe ) == 0 ) { - b_input_add( signal_shutdown_pipe[0], B_EV_IO_READ, bitlbee_shutdown, NULL ); + if (pipe(signal_shutdown_pipe) == 0) { + b_input_add(signal_shutdown_pipe[0], B_EV_IO_READ, bitlbee_shutdown, NULL); sig.sa_handler = sighandler_shutdown; - sigaction( SIGINT, &sig, &old ); - sigaction( SIGTERM, &sig, &old ); + sigaction(SIGINT, &sig, &old); + sigaction(SIGTERM, &sig, &old); } - - if( !getuid() || !geteuid() ) - log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" ); - + + if (!getuid() || !geteuid()) { + log_message(LOGLVL_WARNING, "BitlBee is running with root privileges. Why?"); + } + b_main_run(); - + /* Mainly good for restarting, to make sure we close the help.txt fd. */ - help_free( &global.help ); - - if( global.restart ) - { + help_free(&global.help); + + if (global.restart) { char *fn = ipc_master_save_state(); char *env; - - env = g_strdup_printf( "_BITLBEE_RESTART_STATE=%s", fn ); - putenv( env ); - g_free( fn ); + + env = g_strdup_printf("_BITLBEE_RESTART_STATE=%s", fn); + putenv(env); + g_free(fn); /* Looks like env should *not* be freed here as putenv doesn't make a copy. Odd. */ - - i = chdir( old_cwd ); - close( global.listen_socket ); - - if( execv( argv[0], argv ) == -1 ) + + i = chdir(old_cwd); + close(global.listen_socket); + + if (execv(argv[0], argv) == -1) { /* Apparently the execve() failed, so let's just jump back into our own/current main(). */ /* Need more cleanup code to make this work. */ return 1; /* main( argc, argv ); */ + } } - - return( 0 ); + + return(0); } -static int crypt_main( int argc, char *argv[] ) +static int crypt_main(int argc, char *argv[]) { int pass_len; unsigned char *pass_cr, *pass_cl; - - if( argc < 4 || ( strcmp( argv[2], "hash" ) != 0 && - strcmp( argv[2], "unhash" ) != 0 && argc < 5 ) ) - { - printf( "Supported:\n" - " %s -x enc <key> <cleartext password>\n" - " %s -x dec <key> <encrypted password>\n" - " %s -x hash <cleartext password>\n" - " %s -x unhash <hashed password>\n" - " %s -x chkhash <hashed password> <cleartext password>\n", - argv[0], argv[0], argv[0], argv[0], argv[0] ); - } - else if( strcmp( argv[2], "enc" ) == 0 ) - { - pass_len = arc_encode( argv[4], strlen( argv[4] ), (unsigned char**) &pass_cr, argv[3], 12 ); - printf( "%s\n", base64_encode( pass_cr, pass_len ) ); - } - else if( strcmp( argv[2], "dec" ) == 0 ) - { - pass_len = base64_decode( argv[4], (unsigned char**) &pass_cr ); - arc_decode( pass_cr, pass_len, (char**) &pass_cl, argv[3] ); - printf( "%s\n", pass_cl ); - } - else if( strcmp( argv[2], "hash" ) == 0 ) - { + + if (argc < 4 || (strcmp(argv[2], "hash") != 0 && + strcmp(argv[2], "unhash") != 0 && argc < 5)) { + printf("Supported:\n" + " %s -x enc <key> <cleartext password>\n" + " %s -x dec <key> <encrypted password>\n" + " %s -x hash <cleartext password>\n" + " %s -x unhash <hashed password>\n" + " %s -x chkhash <hashed password> <cleartext password>\n", + argv[0], argv[0], argv[0], argv[0], argv[0]); + } else if (strcmp(argv[2], "enc") == 0) { + pass_len = arc_encode(argv[4], strlen(argv[4]), (unsigned char **) &pass_cr, argv[3], 12); + printf("%s\n", base64_encode(pass_cr, pass_len)); + } else if (strcmp(argv[2], "dec") == 0) { + pass_len = base64_decode(argv[4], (unsigned char **) &pass_cr); + arc_decode(pass_cr, pass_len, (char **) &pass_cl, argv[3]); + printf("%s\n", pass_cl); + } else if (strcmp(argv[2], "hash") == 0) { md5_byte_t pass_md5[21]; md5_state_t md5_state; - - random_bytes( pass_md5 + 16, 5 ); - md5_init( &md5_state ); - md5_append( &md5_state, (md5_byte_t*) argv[3], strlen( argv[3] ) ); - md5_append( &md5_state, pass_md5 + 16, 5 ); /* Add the salt. */ - md5_finish( &md5_state, pass_md5 ); - - printf( "%s\n", base64_encode( pass_md5, 21 ) ); - } - else if( strcmp( argv[2], "unhash" ) == 0 ) - { - printf( "Hash %s submitted to a massive Beowulf cluster of\n" - "overclocked 486s. Expect your answer next year somewhere around this time. :-)\n", argv[3] ); - } - else if( strcmp( argv[2], "chkhash" ) == 0 ) - { - char *hash = strncmp( argv[3], "md5:", 4 ) == 0 ? argv[3] + 4 : argv[3]; - int st = md5_verify_password( argv[4], hash ); - - printf( "Hash %s given password.\n", st == 0 ? "matches" : "does not match" ); - + + random_bytes(pass_md5 + 16, 5); + md5_init(&md5_state); + md5_append(&md5_state, (md5_byte_t *) argv[3], strlen(argv[3])); + md5_append(&md5_state, pass_md5 + 16, 5); /* Add the salt. */ + md5_finish(&md5_state, pass_md5); + + printf("%s\n", base64_encode(pass_md5, 21)); + } else if (strcmp(argv[2], "unhash") == 0) { + printf("Hash %s submitted to a massive Beowulf cluster of\n" + "overclocked 486s. Expect your answer next year somewhere around this time. :-)\n", argv[3]); + } else if (strcmp(argv[2], "chkhash") == 0) { + char *hash = strncmp(argv[3], "md5:", 4) == 0 ? argv[3] + 4 : argv[3]; + int st = md5_verify_password(argv[4], hash); + + printf("Hash %s given password.\n", st == 0 ? "matches" : "does not match"); + return st; } - + return 0; } /* Signal handler for SIGTERM and SIGINT */ -static void sighandler_shutdown( int signal ) +static void sighandler_shutdown(int signal) { /* Write a single null byte to the pipe, just to send a message to the main loop. * This gets handled by bitlbee_shutdown (the b_input_add callback for this pipe) */ - write( signal_shutdown_pipe[1], "", 1 ); + write(signal_shutdown_pipe[1], "", 1); } /* Signal handler for SIGSEGV * A desperate attempt to tell the user that everything is wrong in the world. * Avoids using irc_abort() because it has several unsafe calls to malloc */ -static void sighandler_crash( int signal ) +static void sighandler_crash(int signal) { GSList *l; const char *message = "ERROR :BitlBee crashed! (SIGSEGV received)\r\n"; int len = strlen(message); - for (l = irc_connection_list; l; l = l->next ) { + for (l = irc_connection_list; l; l = l->next) { irc_t *irc = l->data; - write( irc->fd, message, len ); + write(irc->fd, message, len); } - raise( signal ); + raise(signal); } double gettime() { struct timeval time[1]; - gettimeofday( time, 0 ); - return( (double) time->tv_sec + (double) time->tv_usec / 1000000 ); + gettimeofday(time, 0); + return((double) time->tv_sec + (double) time->tv_usec / 1000000); } |