/****************************************************************************** * This file is part of TinTin++ * * * * Copyright 2004-2019 Igor van den Hoven * * * * TinTin++ 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 3 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 TinTin++. If not, see https://www.gnu.org/licenses. * ******************************************************************************/ /****************************************************************************** * (T)he K(I)cki(N) (T)ickin D(I)kumud Clie(N)t * * * * coded by Peter Unold 1992 * * recoded by Igor van den Hoven 2004 * ******************************************************************************/ #include "tintin.h" #include #ifdef HAVE_SYS_STAT_H #include #endif /*************** globals ******************/ struct session *gts; struct tintin_data *gtd; void pipe_handler(int signal) { syserr_printf(gtd->ses, "pipe_handler"); } void xfsz_handler(int signal) { syserr_printf(gtd->ses, "xfsz_handler"); } void hub_handler(int signal) { syserr_printf(gtd->ses, "hub_handler"); } void ttin_handler(int signal) { syserr_printf(gtd->ses, "ttin_handler"); } void ttou_handler(int signal) { syserr_printf(gtd->ses, "ttou_handler"); } void usr_handler(int signal) { check_all_events(gts, EVENT_FLAG_SYSTEM, 0, 1, "SIGUSR", signal == SIGUSR1 ? "1" : "2"); } /* when the screen size changes, take note of it */ void winch_handler(int signal) { SET_BIT(gtd->flags, TINTIN_FLAG_WINCHUPDATE); gtd->time_session = gtd->time; } void abort_handler(int signal) { syserr_fatal(signal, "abort_handler"); } void fpe_handler(int signal) { syserr_fatal(signal, "fpe_handler"); } void child_handler(int signal) { return; syserr_printf(gtd->ses, "child_handler"); } /* void interrupt_handler(int signal) { if (gtd->ses->connect_retry > utime()) { gtd->ses->connect_retry = 0; } else if (HAS_BIT(gtd->ses->telopts, TELOPT_FLAG_SGA) && !HAS_BIT(gtd->ses->telopts, TELOPT_FLAG_ECHO)) { socket_printf(gtd->ses, 1, "\004"); } else if (gtd->attach_sock) { gtd->attach_sock = close(gtd->attach_sock); show_message(gtd->ses, LIST_COMMAND, "#REDETACHING PROCESS TO {%s}", gtd->attach_file); } else { cursor_delete_or_exit(gtd->ses, ""); } } */ void suspend_handler(int signal) { show_message(gtd->ses, LIST_COMMAND, "#SIGNAL: SIGTSTP"); if (gtd->attach_sock) { show_message(gtd->ses, LIST_COMMAND, "#DAEMON {%s} WANTS TO DETACH.", gtd->attach_file); gtd->attach_sock = close(gtd->attach_sock); return; } } void trap_handler(int signal) { syserr_fatal(signal, "trap_handler"); } /****************************************************************************/ /* main() - show title - setup signals - init lists - readcoms - mainloop() */ /****************************************************************************/ int main(int argc, char **argv) { int c, i = 0, greeting = 0; char arg[BUFFER_SIZE]; #ifdef SOCKS SOCKSinit(argv[0]); #endif if (signal(SIGTERM, trap_handler) == BADSIG) { syserr_fatal(-1, "signal SIGTERM"); } if (signal(SIGSEGV, trap_handler) == BADSIG) { syserr_fatal(-1, "signal SIGSEGV"); } if (signal(SIGHUP, trap_handler) == BADSIG) { syserr_fatal(-1, "signal SIGHUP"); } if (signal(SIGABRT, abort_handler) == BADSIG) { syserr_fatal(-1, "signal SIGABRT"); } if (signal(SIGFPE, fpe_handler) == BADSIG) { syserr_fatal(-1, "signal SIGFPE"); } /* if (signal(SIGCHLD, child_handler) == BADSIG) { syserr_fatal(-1, "signal SIGCHLD"); } */ /* if (signal(SIGINT, interrupt_handler) == BADSIG) { syserr_fatal(-1, "signal SIGINT"); } */ if (signal(SIGTSTP, suspend_handler) == BADSIG) { syserr_fatal(-1, "signal SIGTSTP"); } /* if (signal(SIGPIPE, pipe_handler) == BADSIG) { syserr_fatal(-1, "signal SIGPIPE"); } if (signal(SIGXFSZ, xfsz_handler) == BADSIG) { syserr_fatal(-1, "signal SIGXFSZ"); } if (signal(SIGHUP, hub_handler) == BADSIG) { syserr_fatal(-1, "signal SIGHUP"); } if (signal(SIGTTIN, hub_handler) == BADSIG) { syserr_fatal(-1, "signal SIGTTIN"); } if (signal(SIGTTOU, hub_handler) == BADSIG) { syserr_fatal(-1, "signal SIGTTOU"); } */ if (signal(SIGUSR1, usr_handler) == BADSIG) { syserr_fatal(-1, "signal SIGUSR1"); } if (signal(SIGUSR2, usr_handler) == BADSIG) { syserr_fatal(-1, "signal SIGUSR1"); } if (signal(SIGWINCH, winch_handler) == BADSIG) { syserr_fatal(-1, "signal SIGWINCH"); } signal(SIGPIPE, SIG_IGN); for (c = 0 ; c < argc ; c++) { if (c) { cat_sprintf(arg, " %s", argv[c]); } { strcpy(arg, argv[0]); } } if (argc > 1) { while ((c = getopt(argc, argv, "a: e: g G h H M:: r: R:: s t: T v V")) != EOF) { switch (c) { case 'h': printf("Usage: %s [OPTION]... [FILE]...\n", argv[0]); printf("\n"); printf(" -a Set argument for PROGRAM START event.\n"); printf(" -e Execute given command.\n"); printf(" -g Enable the startup user interface.\n"); printf(" -G Don't show the greeting screen.\n"); printf(" -h This help section.\n"); printf(" -H Nohup compatible mode.\n"); printf(" -M Matrix Digital Rain.\n"); printf(" -r Read given file.\n"); printf(" -R Reattach to daemonized process.\n"); printf(" -s Enable screen reader mode.\n"); printf(" -t Set given title.\n"); printf(" -T Don't set the default title.\n"); printf(" -v Enable verbose mode.\n"); printf(" -V Show version information.\n"); exit(1); case 'H': SET_BIT(greeting, STARTUP_FLAG_NOHUP); break; case 'M': case 'G': SET_BIT(greeting, STARTUP_FLAG_NOGREETING); break; case 's': SET_BIT(greeting, STARTUP_FLAG_SCREENREADER); break; case 'v': SET_BIT(greeting, STARTUP_FLAG_VERBOSE); break; case 'V': printf("\nTinTin++ " CLIENT_VERSION "\n"); printf("\n(C) 2004-2019 Igor van den Hoven\n"); printf("\nLicense GPLv3+: GNU GPL version 3 or later .\n\n"); exit(1); } } } init_tintin(greeting); RESTRING(gtd->vars[1], argv[0]); if (argc > 1) { optind = 1; RESTRING(gtd->vars[2], argv[1]); while ((c = getopt(argc, argv, "a: e: g G h H M:: r: R:: s t: T v")) != EOF) { switch (c) { case 'a': RESTRING(gtd->vars[0], argv[2]); SET_BIT(greeting, STARTUP_FLAG_ARGUMENT); break; case 'e': gtd->level->input++; gtd->ses = script_driver(gtd->ses, LIST_COMMAND, optarg); gtd->level->input--; break; case 'g': gtd->ses = command(gtd->ses, do_banner, "gui"); break; case 'G': break; case 'M': command(gts, do_test, "rain %s", optarg ? optarg : ""); break; case 'r': // gtd->level->input++; gtd->ses = command(gtd->ses, do_read, "%s", optarg); // gtd->level->input--; break; case 'R': SET_BIT(gtd->flags, TINTIN_FLAG_DAEMONIZE); command(gtd->ses, do_daemon, "attach {%s}", optarg ? optarg : ""); break; case 's': break; case 't': SET_BIT(greeting, STARTUP_FLAG_NOTITLE); command(gts, do_screen, "LOAD BOTH"); command(gts, do_screen, "SAVE BOTH"); command(gts, do_screen, "SET BOTH %s", optarg); // print_stdout(0, 0, "\e]0;%s\007", optarg); break; case 'T': SET_BIT(greeting, STARTUP_FLAG_NOTITLE); break; case 'v': // do_configure(gtd->ses, "{VERBOSE} {ON}"); break; default: // tintin_printf2(NULL, "Unknown option '%c'.", c); break;; } } } if (!HAS_BIT(greeting, STARTUP_FLAG_NOTITLE)) { command(gts, do_screen, "LOAD BOTH"); command(gts, do_screen, "SAVE BOTH"); command(gts, do_screen, "SET BOTH TinTin++"); } gtd->system->exec = strdup(argv[0]); if (argc > 2) { RESTRING(gtd->vars[3], argv[2]); for (i = 3 ; i <= optind ; i++) { RESTRING(gtd->vars[i+1], argv[i] ? argv[i] : ""); } arg[0] = 0; for (i = optind + 1 ; i < argc ; i++) { if (*arg) { strcat(arg, " "); } strcat(arg, argv[i]); if (i < 100) { RESTRING(gtd->vars[i+1], argv[i]); } } if (!HAS_BIT(greeting, STARTUP_FLAG_ARGUMENT)) { RESTRING(gtd->vars[0], arg); } } gtd->varc = UMIN(argc + 1, 100); if (argv[optind] != NULL) { if (!strncasecmp(argv[optind], "telnet://", 9)) { gtd->ses = command(gtd->ses, do_session, "%s", argv[optind]); } else { gtd->level->input++; gtd->ses = command(gtd->ses, do_read, "%s", argv[optind]); gtd->level->input--; } } check_all_events(gts, EVENT_FLAG_SYSTEM, 0, 0, "PROGRAM START"); mainloop(); return 0; } void init_tintin(int greeting) { char filename[PATH_SIZE]; int index; gtd = (struct tintin_data *) calloc(1, sizeof(struct tintin_data)); init_memory(); push_call("init_tintin(%d)",greeting); gtd->level = (struct level_data *) calloc(1, sizeof(struct level_data)); gtd->buf = str_alloc(BUFFER_SIZE); gtd->out = str_alloc(BUFFER_SIZE); gtd->flags = TINTIN_FLAG_INHERITANCE; gtd->mccp_len = 16384; gtd->mccp_buf = (unsigned char *) calloc(1, gtd->mccp_len); gtd->mud_output_max = 16384; gtd->mud_output_buf = (char *) calloc(1, gtd->mud_output_max); gtd->mud_output_strip_buf = (char *) calloc(1, gtd->mud_output_max); gtd->mud_output_line = gtd->mud_output_buf; // WSL: /proc/sys/kernel/osrelease gtd->system = (struct system_data *) calloc(1, sizeof(struct system_data)); gtd->system->os = strdup(getenv("OS") ? getenv("OS") : "UNKNOWN"); gtd->system->home = strdup(getenv("HOME") ? getenv("HOME") : "~/"); gtd->system->lang = strdup(getenv("LANG") ? getenv("LANG") : "UNKNOWN"); gtd->system->term = strdup(getenv("TERM") ? getenv("TERM") : "UNKNOWN"); gtd->system->tt_dir = restringf(gtd->system->tt_dir, "%s/%s", gtd->system->home, TINTIN_DIR); if (mkdir(gtd->system->tt_dir, 0755) && errno != EEXIST) { gtd->system->tt_dir = restringf(gtd->system->tt_dir, "%s", TINTIN_DIR); mkdir(gtd->system->tt_dir, 0755); } gtd->detach_file = strdup(""); gtd->attach_file = strdup(""); gtd->tintin_char = '#'; gtd->time = time(NULL); gtd->utime = utime(); for (index = 0 ; index < 100 ; index++) { gtd->vars[index] = strdup(""); gtd->cmds[index] = strdup(""); } for (index = 1 ; index ; index++) { if (*event_table[index].name == 0) { break; } if (strcmp(event_table[index - 1].name, event_table[index].name) > 0) { print_stdout(0, 0, "\e[1;31minit_tintin() unsorted event table %s vs %s.", event_table[index - 1].name, event_table[index].name); break; } } init_commands(); gtd->screen = calloc(1, sizeof(struct screen_data)); gtd->screen->rows = SCREEN_HEIGHT; gtd->screen->cols = SCREEN_WIDTH; gtd->screen->height = SCREEN_HEIGHT * 16; gtd->screen->width = SCREEN_WIDTH * 10; gtd->screen->focus = 1; gtd->dispose_list = init_list(NULL, 0, 32); init_msdp_table(); // global tintin session gts = (struct session *) calloc(1, sizeof(struct session)); gts->created = gtd->time; gts->name = strdup("gts"); gts->group = strdup(""); gts->session_host = strdup(""); gts->session_ip = strdup(""); gts->session_port = strdup(""); gts->cmd_color = strdup(""); gts->telopts = TELOPT_FLAG_ECHO; gts->config_flags = CONFIG_FLAG_MCCP; gts->socket = 1; gts->read_max = 16384; gts->more_output = str_dup(""); gtd->ses = gts; for (index = 0 ; index < LIST_MAX ; index++) { gts->list[index] = init_list(gts, index, 32); } gtd->banner_list = init_list(gts, LIST_CONFIG, 32); gts->log = calloc(1, sizeof(struct log_data)); gts->input = calloc(1, sizeof(struct input_data)); gts->scroll = calloc(1, sizeof(struct scroll_data)); gts->split = calloc(1, sizeof(struct split_data)); init_local(gts); init_terminal_size(gts); init_log(gts); init_input(gts, 0, 0, 0, 0); init_buffer(gts, 10000); if (HAS_BIT(greeting, STARTUP_FLAG_VERBOSE)) { gtd->level->verbose++; } gtd->level->input++; /* command(gts, do_configure, "{AUTO TAB} {5000}"); */ gts->scrollback_tab = 5000; command(gts, do_configure, "{BUFFER SIZE} {10000}"); command(gts, do_configure, "{COLOR MODE} {ON}"); command(gts, do_configure, "{COLOR PATCH} {OFF}"); command(gts, do_configure, "{COMMAND COLOR} {<078>}"); command(gts, do_configure, "{COMMAND ECHO} {ON}"); command(gts, do_configure, "{COMPACT} {OFF}"); /* command(gts, do_configure, "{CONNECT RETRY} {0}"); */ command(gts, do_configure, "{CHARSET} {AUTO}"); command(gts, do_configure, "{HISTORY SIZE} {1000}"); command(gts, do_configure, "{LOG MODE} {RAW}"); command(gts, do_configure, "{MOUSE} {OFF}"); command(gts, do_configure, "{PACKET PATCH} {AUTO}"); /* command(gts, do_configure, "{RANDOM SEED} {AUTO}"); */ seed_rand(gts, ++gtd->utime); command(gts, do_configure, "{REPEAT CHAR} {!}"); command(gts, do_configure, "{REPEAT ENTER} {OFF}"); command(gts, do_configure, "{SCREEN READER} {%s}", HAS_BIT(greeting, STARTUP_FLAG_SCREENREADER) ? "ON" : "OFF"); command(gts, do_configure, "{SCROLL LOCK} {ON}"); command(gts, do_configure, "{SPEEDWALK} {OFF}"); /* command(gts, do_configure, "{TAB WIDTH} {AUTO}"); */ gts->tab_width = 8; command(gts, do_configure, "{TELNET} {ON}"); /* command(gts, do_configure, "{TINTIN CHAR} {#}"); */ command(gts, do_configure, "{VERBATIM} {OFF}"); command(gts, do_configure, "{VERBATIM CHAR} {\\}"); command(gts, do_configure, "{VERBOSE} {%s}", HAS_BIT(greeting, STARTUP_FLAG_VERBOSE) ? "ON" : "OFF"); command(gts, do_configure, "{WORDWRAP} {ON}"); command(gts, do_pathdir, " n s 1"); command(gts, do_pathdir, " e w 2"); command(gts, do_pathdir, " s n 4"); command(gts, do_pathdir, " w e 8"); command(gts, do_pathdir, " u d 16"); command(gts, do_pathdir, " d u 32"); command(gts, do_pathdir, "ne sw 3"); command(gts, do_pathdir, "nw se 9"); command(gts, do_pathdir, "se nw 6"); command(gts, do_pathdir, "sw ne 12"); sprintf(filename, "%s/%s", gtd->system->tt_dir, HISTORY_FILE); if (access(filename, F_OK ) != -1) { command(gts, do_history, "read %s", filename); } gtd->level->input--; if (HAS_BIT(greeting, STARTUP_FLAG_VERBOSE)) { gtd->level->verbose--; } if (HAS_BIT(greeting, STARTUP_FLAG_NOHUP)) { SET_BIT(gtd->flags, TINTIN_FLAG_NOHUP); } init_terminal(gts); reset_screen(gts); command(gts, do_banner, "INIT"); if (!HAS_BIT(greeting, STARTUP_FLAG_NOGREETING)) { if (HAS_BIT(greeting, STARTUP_FLAG_SCREENREADER)) { tintin_printf2(gts, "Welcome to TinTin Plus Plus. Don't know which MUD to play? How about the following MUD."); command(gts, do_banner, "RANDOM"); tintin_printf2(gts, "You're using TinTin Plus Plus version %s written by Peter Unold, Bill Reis, and Igor van den Hoven.", CLIENT_VERSION); tintin_printf2(gts, ""); tintin_printf2(gts, "For help and requests visit the Discord channel at https://discord.gg/gv7a37n"); } else { command(gts, do_banner, "RANDOM"); if (gtd->screen->cols >= 80) { command(gts, do_help, "GREETING"); } else { tintin_printf2(gts, "\e[0;37mT I N T I N + + %s", CLIENT_VERSION); tintin_printf2(gts, ""); // tintin_printf2(gts, "\e[0;36mT\e[0;37mhe K\e[0;36mi\e[0;37mcki\e[0;36mn\e[0;37m \e[0;36mT\e[0;37mickin D\e[0;36mi\e[0;37mkuMUD Clie\e[0;36mn\e[0;37mt"); tintin_printf2(gts, "Code by Peter Unold, Bill Reis, and Igor van den Hoven"); } } } pop_call(); return; } void quitmsg(char *message) { struct session *ses; static char crashed = FALSE; if (crashed++) { print_stdout(0, 0, "quitmsg(crashed)\n"); fflush(NULL); exit(-1); } SET_BIT(gtd->flags, TINTIN_FLAG_TERMINATE); for (ses = gts->next ; ses ; ses = gts->next) { cleanup_session(ses); } if (gtd->chat) { chat_uninitialize("", ""); } check_all_events(gts, EVENT_FLAG_SYSTEM, 0, 1, "PROGRAM TERMINATION", message ? message : ""); if (HAS_BIT(gtd->flags, TINTIN_FLAG_HISTORYUPDATE) && gtd->history_size) { command(gts, do_history, "write %s/%s", gtd->system->tt_dir, HISTORY_FILE); } reset_daemon(); reset_terminal(gts); reset_screen(gts); if (message == NULL || *message) { if (message) { print_stdout(0, 0, "\n\e[0m%s", message); } print_stdout(0, 0, "\nGoodbye from TinTin++\n\n"); } fflush(stdout); exit(0); } void syserr_printf(struct session *ses, char *fmt, ...) { char buf[BUFFER_SIZE], name[BUFFER_SIZE], *errstr; errstr = strerror(errno); va_list args; va_start(args, fmt); vsprintf(buf, fmt, args); va_end(args); if (ses) { sprintf(name, "(%s)", ses->name); } else { sprintf(name, "(null)"); } check_all_events(ses, SUB_SEC|EVENT_FLAG_SYSTEM, 0, 4, "SYSTEM ERROR", name, buf, ntos(errno), errstr); if (!check_all_events(ses, SUB_SEC|EVENT_FLAG_SYSTEM, 0, 4, "CATCH SYSTEM ERROR", name, buf, ntos(errno), errstr)) { if (gts) { tintin_printf2(gts, "#SYSTEM ERROR %s %s (%d: %s)\e[0m", name, buf, errno, errstr); } if (ses && ses != gts) { tintin_printf2(ses, "#SYSTEM ERROR: %s %s (%d: %s)\e[0m", name, buf, errno, errstr); } if (ses && gtd->ses != ses && gtd->ses != gts) { tintin_printf2(gtd->ses, "#SYSTEM ERROR: %s %s (%d: %s)\e[0m", name, buf, errno, errstr); } } } void syserr_signal(int signal, char *msg) { char buf[256]; static char crashed = FALSE; if (crashed++) { print_stdout(0, 0, "syserr_signal(crashed)\n"); fflush(NULL); exit(-1); } reset_terminal(gts); reset_screen(gts); fflush(NULL); dump_stack(); sprintf(buf, "\e[1;31mFATAL SIGNAL FROM (%s): %s\e[0m\n", msg, strsignal(signal)); print_stdout(0, 0, "%s", buf); fflush(NULL); abort(); } void syserr_fatal(int signal, char *msg) { char errstr[128]; static char crashed = FALSE; if (crashed++) { print_stdout(0, 0, "\e[1;36msyserr_fatal(crashed) \e[0m\n"); fflush(NULL); exit(-1); } if (signal == SIGHUP) { crashed--; check_all_events(gts, SUB_SEC|EVENT_FLAG_SYSTEM, 0, 0, "SIGHUB"); crashed++; } if (signal <= 0) { sprintf(errstr, "(error %d: %s", errno, strerror(errno)); } else { sprintf(errstr, "(signal %d: %s)", signal, strsignal(signal)); } check_all_events(NULL, SUB_SEC|EVENT_FLAG_SYSTEM, 0, 1, "SYSTEM CRASH", errstr); if (gtd->level->quiet) { gtd->level->quiet = 0; } reset_terminal(gts); reset_screen(gts); print_stdout(0, 0, "\e[?1049l\e[r"); dump_stack(); print_stdout(0, 0, "%*s", (unsigned char) gtd->screen->cols, ""); print_stdout(0, 0, "\n\e[1;31mFATAL ERROR \e[1;32m%s %s\e[0m\n", (unsigned char) gtd->screen->cols, "", msg, errstr); reset_daemon(); fflush(NULL); abort(); }