asterisk.c

   1 /*
   2  * Asterisk -- A telephony toolkit for Linux.
   3  *
   4  * Top level source file for asterisk
   5  *
   6  * Copyright (C) 1999, Mark Spencer
   7  *
   8  * Mark Spencer <markster@linux-support.net>
   9  *
  10  * This program is free software, distributed under the terms of
  11  * the GNU General Public License
  12  */
  13
  14 #include <unistd.h>
  15 #include <stdlib.h>
  16 #include <asterisk/logger.h>
  17 #include <asterisk/options.h>
  18 #include <asterisk/cli.h>
  19 #include <asterisk/channel.h>
  20 #include <asterisk/ulaw.h>
  21 #include <asterisk/alaw.h>
  22 #include <asterisk/callerid.h>
  23 #include <asterisk/module.h>
  24 #include <asterisk/image.h>
  25 #include <asterisk/tdd.h>
  26 #include <asterisk/term.h>
  27 #include <asterisk/manager.h>
  28 #include <asterisk/pbx.h>
  29 #include <asterisk/enum.h>
  30 #include <asterisk/rtp.h>
  31 #include <sys/resource.h>
  32 #include <fcntl.h>
  33 #include <stdio.h>
  34 #include <signal.h>
  35 #include <sched.h>
  36 #include <asterisk/io.h>
  37 #include <pthread.h>
  38 #include <sys/socket.h>
  39 #include <sys/un.h>
  40 #include <sys/select.h>
  41 #include <sys/wait.h>
  42 #include <string.h>
  43 #include <errno.h>
  44 #include <ctype.h>
  45 #include "editline/histedit.h"
  46 #include "asterisk.h"
  47 #include <asterisk/config.h>
  48
  49 #define AST_MAX_CONNECTS 128
  50 #define NUM_MSGS 64
  51
  52 int option_verbose=0;
  53 int option_debug=0;
  54 int option_nofork=0;
  55 int option_quiet=0;
  56 int option_console=0;
  57 int option_highpriority=0;
  58 int option_remote=0;
  59 int option_exec=0;
  60 int option_initcrypto=0;
  61 int option_nocolor;
  62 int option_dumpcore = 0;
  63 int option_overrideconfig = 0;
  64 int fully_booted = 0;
  65
  66 static int ast_socket = -1;             /* UNIX Socket for allowing remote control */
  67 static int ast_consock = -1;            /* UNIX Socket for controlling another asterisk */
  68 static int mainpid;
  69 struct console {
  70         int fd;                                 /* File descriptor */
  71         int p[2];                               /* Pipe */
  72         pthread_t t;                    /* Thread of handler */
  73 };
  74
  75 static struct ast_atexit {
  76         void (*func)(void);
  77         struct ast_atexit *next;
  78 } *atexits = NULL;
  79 static ast_mutex_t atexitslock = AST_MUTEX_INITIALIZER;
  80
  81 time_t ast_startuptime;
  82 time_t ast_lastreloadtime;
  83
  84 static History *el_hist = NULL;
  85 static EditLine *el = NULL;
  86 static char *remotehostname;
  87
  88 struct console consoles[AST_MAX_CONNECTS];
  89
  90 char defaultlanguage[MAX_LANGUAGE] = DEFAULT_LANGUAGE;
  91
  92 static int ast_el_add_history(char *);
  93 static int ast_el_read_history(char *);
  94 static int ast_el_write_history(char *);
  95
  96 char ast_config_AST_CONFIG_DIR[AST_CONFIG_MAX_PATH];
  97 char ast_config_AST_CONFIG_FILE[AST_CONFIG_MAX_PATH];
  98 char ast_config_AST_MODULE_DIR[AST_CONFIG_MAX_PATH];
  99 char ast_config_AST_SPOOL_DIR[AST_CONFIG_MAX_PATH];
 100 char ast_config_AST_VAR_DIR[AST_CONFIG_MAX_PATH];
 101 char ast_config_AST_LOG_DIR[AST_CONFIG_MAX_PATH];
 102 char ast_config_AST_AGI_DIR[AST_CONFIG_MAX_PATH];
 103 char ast_config_AST_DB[AST_CONFIG_MAX_PATH];
 104 char ast_config_AST_KEY_DIR[AST_CONFIG_MAX_PATH];
 105 char ast_config_AST_PID[AST_CONFIG_MAX_PATH];
 106 char ast_config_AST_SOCKET[AST_CONFIG_MAX_PATH];
 107 char ast_config_AST_RUN_DIR[AST_CONFIG_MAX_PATH];
 108
 109 static char *_argv[256];
 110 static int shuttingdown = 0;
 111 static int restartnow = 0;
 112 static pthread_t consolethread = (pthread_t) -1;
 113
 114 int ast_register_atexit(void (*func)(void))
 115 {
 116         int res = -1;
 117         struct ast_atexit *ae;
 118         ast_unregister_atexit(func);
 119         ae = malloc(sizeof(struct ast_atexit));
 120         ast_mutex_lock(&atexitslock);
 121         if (ae) {
 122                 memset(ae, 0, sizeof(struct ast_atexit));
 123                 ae->next = atexits;
 124                 ae->func = func;
 125                 atexits = ae;
 126                 res = 0;
 127         }
 128         ast_mutex_unlock(&atexitslock);
 129         return res;
 130 }
 131
 132 void ast_unregister_atexit(void (*func)(void))
 133 {
 134         struct ast_atexit *ae, *prev = NULL;
 135         ast_mutex_lock(&atexitslock);
 136         ae = atexits;
 137         while(ae) {
 138                 if (ae->func == func) {
 139                         if (prev)
 140                                 prev->next = ae->next;
 141                         else
 142                                 atexits = ae->next;
 143                         break;
 144                 }
 145                 prev = ae;
 146                 ae = ae->next;
 147         }
 148         ast_mutex_unlock(&atexitslock);
 149 }
 150
 151 static int fdprint(int fd, const char *s)
 152 {
 153         return write(fd, s, strlen(s) + 1);
 154 }
 155
 156 /*
 157  * write the string to all attached console clients
 158  */
 159 static void ast_network_puts(const char *string)
 160 {
 161     int x;
 162     for (x=0;x<AST_MAX_CONNECTS; x++) {
 163         if (consoles[x].fd > -1)
 164             fdprint(consoles[x].p[1], string);
 165     }
 166 }
 167
 168
 169 /*
 170  * write the string to the console, and all attached
 171  * console clients
 172  */
 173 void ast_console_puts(const char *string)
 174 {
 175     fputs(string, stdout);
 176     fflush(stdout);
 177     ast_network_puts(string);
 178 }
 179
 180 static void network_verboser(const char *s, int pos, int replace, int complete)
 181      /* ARGUSED */
 182 {
 183     ast_network_puts(s);
 184 }
 185
 186 static pthread_t lthread;
 187
 188 static void *netconsole(void *vconsole)
 189 {
 190         struct console *con = vconsole;
 191         char hostname[256];
 192         char tmp[512];
 193         int res;
 194         int max;
 195         fd_set rfds;
 196
 197         if (gethostname(hostname, sizeof(hostname)))
 198                 strncpy(hostname, "<Unknown>", sizeof(hostname)-1);
 199         snprintf(tmp, sizeof(tmp), "%s/%d/%s\n", hostname, mainpid, ASTERISK_VERSION);
 200         fdprint(con->fd, tmp);
 201         for(;;) {
 202                 FD_ZERO(&rfds);
 203                 FD_SET(con->fd, &rfds);
 204                 FD_SET(con->p[0], &rfds);
 205                 max = con->fd;
 206                 if (con->p[0] > max)
 207                         max = con->p[0];
 208                 res = ast_select(max + 1, &rfds, NULL, NULL, NULL);
 209                 if (res < 0) {
 210                         ast_log(LOG_WARNING, "select returned < 0: %s\n", strerror(errno));
 211                         continue;
 212                 }
 213                 if (FD_ISSET(con->fd, &rfds)) {
 214                         res = read(con->fd, tmp, sizeof(tmp));
 215                         if (res < 1) {
 216                                 break;
 217                         }
 218                         tmp[res] = 0;
 219                         ast_cli_command(con->fd, tmp);
 220                 }
 221                 if (FD_ISSET(con->p[0], &rfds)) {
 222                         res = read(con->p[0], tmp, sizeof(tmp));
 223                         if (res < 1) {
 224                                 ast_log(LOG_ERROR, "read returned %d\n", res);
 225                                 break;
 226                         }
 227                         res = write(con->fd, tmp, res);
 228                         if (res < 1)
 229                                 break;
 230                 }
 231         }
 232         if (option_verbose > 2)
 233                 ast_verbose(VERBOSE_PREFIX_3 "Remote UNIX connection disconnected\n");
 234         close(con->fd);
 235         close(con->p[0]);
 236         close(con->p[1]);
 237         con->fd = -1;
 238
 239         return NULL;
 240 }
 241
 242 static void *listener(void *unused)
 243 {
 244         struct sockaddr_un sun;
 245         fd_set fds;
 246         int s;
 247         int len;
 248         int x;
 249         int flags;
 250         pthread_attr_t attr;
 251         pthread_attr_init(&attr);
 252         pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
 253         for(;;) {
 254                 if (ast_socket < 0)
 255                         return NULL;
 256                 FD_ZERO(&fds);
 257                 FD_SET(ast_socket, &fds);
 258                 s = ast_select(ast_socket + 1, &fds, NULL, NULL, NULL);
 259                 if (s < 0) {
 260                         ast_log(LOG_WARNING, "Select retured error: %s\n", strerror(errno));
 261                         continue;
 262                 }
 263                 len = sizeof(sun);
 264                 s = accept(ast_socket, (struct sockaddr *)&sun, &len);
 265                 if (s < 0) {
 266                         ast_log(LOG_WARNING, "Accept retured %d: %s\n", s, strerror(errno));
 267                 } else {
 268                         for (x=0;x<AST_MAX_CONNECTS;x++) {
 269                                 if (consoles[x].fd < 0) {
 270                                         if (socketpair(AF_LOCAL, SOCK_STREAM, 0, consoles[x].p)) {
 271                                                 ast_log(LOG_ERROR, "Unable to create pipe: %s\n", strerror(errno));
 272                                                 consoles[x].fd = -1;
 273                                                 fdprint(s, "Server failed to create pipe\n");
 274                                                 close(s);
 275                                                 break;
 276                                         }
 277                                         flags = fcntl(consoles[x].p[1], F_GETFL);
 278                                         fcntl(consoles[x].p[1], F_SETFL, flags | O_NONBLOCK);
 279                                         consoles[x].fd = s;
 280                                         if (pthread_create(&consoles[x].t, &attr, netconsole, &consoles[x])) {
 281                                                 ast_log(LOG_ERROR, "Unable to spawn thread to handle connection\n");
 282                                                 consoles[x].fd = -1;
 283                                                 fdprint(s, "Server failed to spawn thread\n");
 284                                                 close(s);
 285                                         }
 286                                         break;
 287                                 }
 288                         }
 289                         if (x >= AST_MAX_CONNECTS) {
 290                                 fdprint(s, "No more connections allowed\n");
 291                                 ast_log(LOG_WARNING, "No more connections allowed\n");
 292                                 close(s);
 293                         } else if (consoles[x].fd > -1) {
 294                                 if (option_verbose > 2)
 295                                         ast_verbose(VERBOSE_PREFIX_3 "Remote UNIX connection\n");
 296                         }
 297                 }
 298         }
 299         return NULL;
 300 }
 301
 302 static int ast_makesocket(void)
 303 {
 304         struct sockaddr_un sun;
 305         int res;
 306         int x;
 307         for (x=0;x<AST_MAX_CONNECTS;x++)
 308                 consoles[x].fd = -1;
 309         unlink((char *)ast_config_AST_SOCKET);
 310         ast_socket = socket(PF_LOCAL, SOCK_STREAM, 0);
 311         if (ast_socket < 0) {
 312                 ast_log(LOG_WARNING, "Unable to create control socket: %s\n", strerror(errno));
 313                 return -1;
 314         }
 315         memset(&sun, 0, sizeof(sun));
 316         sun.sun_family = AF_LOCAL;
 317         strncpy(sun.sun_path, (char *)ast_config_AST_SOCKET, sizeof(sun.sun_path)-1);
 318         res = bind(ast_socket, (struct sockaddr *)&sun, sizeof(sun));
 319         if (res) {
 320                 ast_log(LOG_WARNING, "Unable to bind socket to %s: %s\n", (char *)ast_config_AST_SOCKET, strerror(errno));
 321                 close(ast_socket);
 322                 ast_socket = -1;
 323                 return -1;
 324         }
 325         res = listen(ast_socket, 2);
 326         if (res < 0) {
 327                 ast_log(LOG_WARNING, "Unable to listen on socket %s: %s\n", (char *)ast_config_AST_SOCKET, strerror(errno));
 328                 close(ast_socket);
 329                 ast_socket = -1;
 330                 return -1;
 331         }
 332         ast_register_verbose(network_verboser);
 333         pthread_create(&lthread, NULL, listener, NULL);
 334         return 0;
 335 }
 336
 337 static int ast_tryconnect(void)
 338 {
 339         struct sockaddr_un sun;
 340         int res;
 341         ast_consock = socket(PF_LOCAL, SOCK_STREAM, 0);
 342         if (ast_consock < 0) {
 343                 ast_log(LOG_WARNING, "Unable to create socket: %s\n", strerror(errno));
 344                 return 0;
 345         }
 346         memset(&sun, 0, sizeof(sun));
 347         sun.sun_family = AF_LOCAL;
 348         strncpy(sun.sun_path, (char *)ast_config_AST_SOCKET, sizeof(sun.sun_path)-1);
 349         res = connect(ast_consock, (struct sockaddr *)&sun, sizeof(sun));
 350         if (res) {
 351                 close(ast_consock);
 352                 ast_consock = -1;
 353                 return 0;
 354         } else
 355                 return 1;
 356 }
 357
 358 static void urg_handler(int num)
 359 {
 360         /* Called by soft_hangup to interrupt the select, read, or other
 361            system call.  We don't actually need to do anything though.  */
 362         /* Cannot EVER ast_log from within a signal handler */
 363         if (option_debug)
 364                 printf("Urgent handler\n");
 365         signal(num, urg_handler);
 366         return;
 367 }
 368
 369 static void hup_handler(int num)
 370 {
 371         if (option_verbose > 1)
 372                 printf("Received HUP signal -- Reloading configs\n");
 373         if (restartnow)
 374                 execvp(_argv[0], _argv);
 375         /* XXX This could deadlock XXX */
 376         ast_module_reload();
 377 }
 378
 379 static void child_handler(int sig)
 380 {
 381         /* Must not ever ast_log or ast_verbose within signal handler */
 382         int n, status;
 383
 384         /*
 385          * Reap all dead children -- not just one
 386          */
 387         for (n = 0; wait4(-1, &status, WNOHANG, NULL) > 0; n++)
 388                 ;
 389         if (n == 0 && option_debug)
 390                 printf("Huh?  Child handler, but nobody there?\n");
 391 }
 392
 393 static void set_title(char *text)
 394 {
 395         /* Set an X-term or screen title */
 396         if (getenv("TERM") && strstr(getenv("TERM"), "xterm"))
 397                 fprintf(stdout, "\033]2;%s\007", text);
 398 }
 399
 400 static void set_icon(char *text)
 401 {
 402         if (getenv("TERM") && strstr(getenv("TERM"), "xterm"))
 403                 fprintf(stdout, "\033]1;%s\007", text);
 404 }
 405
 406 static int set_priority(int pri)
 407 {
 408         struct sched_param sched;
 409         memset(&sched, 0, sizeof(sched));
 410         /* We set ourselves to a high priority, that we might pre-empt everything
 411            else.  If your PBX has heavy activity on it, this is a good thing.  */
 412 #ifdef __linux__
 413         if (pri) {
 414                 sched.sched_priority = 10;
 415                 if (sched_setscheduler(0, SCHED_RR, &sched)) {
 416                         ast_log(LOG_WARNING, "Unable to set high priority\n");
 417                         return -1;
 418                 } else
 419                         if (option_verbose)
 420                                 ast_verbose("Set to realtime thread\n");
 421         } else {
 422                 sched.sched_priority = 0;
 423                 if (sched_setscheduler(0, SCHED_OTHER, &sched)) {
 424                         ast_log(LOG_WARNING, "Unable to set normal priority\n");
 425                         return -1;
 426                 }
 427         }
 428 #else
 429         if (pri) {
 430                 if (setpriority(PRIO_PROCESS, 0, -10) == -1) {
 431                         ast_log(LOG_WARNING, "Unable to set high priority\n");
 432                         return -1;
 433                 } else
 434                         if (option_verbose)
 435                                 ast_verbose("Set to high priority\n");
 436         } else {
 437                 if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
 438                         ast_log(LOG_WARNING, "Unable to set normal priority\n");
 439                         return -1;
 440                 }
 441         }
 442 #endif
 443         return 0;
 444 }
 445
 446 static void ast_run_atexits(void)
 447 {
 448         struct ast_atexit *ae;
 449         ast_mutex_lock(&atexitslock);
 450         ae = atexits;
 451         while(ae) {
 452                 if (ae->func)
 453                         ae->func();
 454                 ae = ae->next;
 455         }
 456         ast_mutex_unlock(&atexitslock);
 457 }
 458
 459 static void quit_handler(int num, int nice, int safeshutdown, int restart)
 460 {
 461         char filename[80] = "";
 462         time_t s,e;
 463         int x;
 464         if (safeshutdown) {
 465                 shuttingdown = 1;
 466                 if (!nice) {
 467                         /* Begin shutdown routine, hanging up active channels */
 468                         ast_begin_shutdown(1);
 469                         if (option_verbose && option_console)
 470                                 ast_verbose("Beginning asterisk %s....\n", restart ? "restart" : "shutdown");
 471                         time(&s);
 472                         for(;;) {
 473                                 time(&e);
 474                                 /* Wait up to 15 seconds for all channels to go away */
 475                                 if ((e - s) > 15)
 476                                         break;
 477                                 if (!ast_active_channels())
 478                                         break;
 479                                 if (!shuttingdown)
 480                                         break;
 481                                 /* Sleep 1/10 of a second */
 482                                 usleep(100000);
 483                         }
 484                 } else {
 485                         if (nice < 2)
 486                                 ast_begin_shutdown(0);
 487                         if (option_verbose && option_console)
 488                                 ast_verbose("Waiting for inactivity to perform %s...\n", restart ? "restart" : "halt");
 489                         for(;;) {
 490                                 if (!ast_active_channels())
 491                                         break;
 492                                 if (!shuttingdown)
 493                                         break;
 494                                 sleep(1);
 495                         }
 496                 }
 497
 498                 if (!shuttingdown) {
 499                         if (option_verbose && option_console)
 500                                 ast_verbose("Asterisk %s cancelled.\n", restart ? "restart" : "shutdown");
 501                         return;
 502                 }
 503         }
 504         if (option_console || option_remote) {
 505                 if (getenv("HOME"))
 506                         snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
 507                 if (strlen(filename))
 508                         ast_el_write_history(filename);
 509                 if (el != NULL)
 510                         el_end(el);
 511                 if (el_hist != NULL)
 512                         history_end(el_hist);
 513         }
 514         if (option_verbose)
 515                 ast_verbose("Executing last minute cleanups\n");
 516         ast_run_atexits();
 517         /* Called on exit */
 518         if (option_verbose && option_console)
 519                 ast_verbose("Asterisk %s ending (%d).\n", ast_active_channels() ? "uncleanly" : "cleanly", num);
 520         else if (option_debug)
 521                 ast_log(LOG_DEBUG, "Asterisk ending (%d).\n", num);
 522         manager_event(EVENT_FLAG_SYSTEM, "Shutdown", "Shutdown: %s\r\nRestart: %s\r\n", ast_active_channels() ? "Uncleanly" : "Cleanly", restart ? "True" : "False");
 523         if (ast_socket > -1) {
 524                 close(ast_socket);
 525                 ast_socket = -1;
 526         }
 527         if (ast_consock > -1)
 528                 close(ast_consock);
 529         if (ast_socket > -1)
 530                 unlink((char *)ast_config_AST_SOCKET);
 531         if (!option_remote) unlink((char *)ast_config_AST_PID);
 532         printf(term_quit());
 533         if (restart) {
 534                 if (option_verbose || option_console)
 535                         ast_verbose("Preparing for Asterisk restart...\n");
 536                 /* Mark all FD's for closing on exec */
 537                 for (x=3;x<32768;x++) {
 538                         fcntl(x, F_SETFD, FD_CLOEXEC);
 539                 }
 540                 if (option_verbose || option_console)
 541                         ast_verbose("Restarting Asterisk NOW...\n");
 542                 restartnow = 1;
 543                 /* If there is a consolethread running send it a SIGHUP
 544                    so it can execvp, otherwise we can do it ourselves */
 545                 if (consolethread != (pthread_t) -1)
 546                         pthread_kill(consolethread, SIGHUP);
 547                 else
 548                         execvp(_argv[0], _argv);
 549
 550         }
 551         exit(0);
 552 }
 553
 554 static void __quit_handler(int num)
 555 {
 556         quit_handler(num, 0, 1, 0);
 557 }
 558
 559 static const char *fix_header(char *outbuf, int maxout, const char *s, char *cmp)
 560 {
 561         const char *c;
 562         if (!strncmp(s, cmp, strlen(cmp))) {
 563                 c = s + strlen(cmp);
 564                 term_color(outbuf, cmp, COLOR_GRAY, 0, maxout);
 565                 return c;
 566         }
 567         return NULL;
 568 }
 569
 570 static void console_verboser(const char *s, int pos, int replace, int complete)
 571 {
 572         char tmp[80];
 573         const char *c=NULL;
 574         /* Return to the beginning of the line */
 575         if (!pos) {
 576                 fprintf(stdout, "\r");
 577                 if ((c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_4)) ||
 578                         (c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_3)) ||
 579                         (c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_2)) ||
 580                         (c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_1)))
 581                         fputs(tmp, stdout);
 582         }
 583         if (c)
 584                 fputs(c + pos,stdout);
 585         else
 586                 fputs(s + pos,stdout);
 587         fflush(stdout);
 588         if (complete)
 589         /* Wake up a select()ing console */
 590                 if (consolethread != (pthread_t) -1)
 591                         pthread_kill(consolethread, SIGURG);
 592 }
 593
 594 static void consolehandler(char *s)
 595 {
 596         printf(term_end());
 597         fflush(stdout);
 598         /* Called when readline data is available */
 599         if (s && strlen(s))
 600                 ast_el_add_history(s);
 601         /* Give the console access to the shell */
 602         if (s) {
 603                 /* The real handler for bang */
 604                 if (s[0] == '!') {
 605                         if (s[1])
 606                                 system(s+1);
 607                         else
 608                                 system(getenv("SHELL") ? getenv("SHELL") : "/bin/sh");
 609                 } else
 610                 ast_cli_command(STDOUT_FILENO, s);
 611         } else
 612                 fprintf(stdout, "\nUse \"quit\" to exit\n");
 613 }
 614
 615 static int remoteconsolehandler(char *s)
 616 {
 617         int ret = 0;
 618         /* Called when readline data is available */
 619         if (s && strlen(s))
 620                 ast_el_add_history(s);
 621         /* Give the console access to the shell */
 622         if (s) {
 623                 /* The real handler for bang */
 624                 if (s[0] == '!') {
 625                         if (s[1])
 626                                 system(s+1);
 627                         else
 628                                 system(getenv("SHELL") ? getenv("SHELL") : "/bin/sh");
 629                         ret = 1;
 630                 }
 631                 if ((strncasecmp(s, "quit", 4) == 0 || strncasecmp(s, "exit", 4) == 0) &&
 632                     (s[4] == '\0' || isspace(s[4]))) {
 633                         quit_handler(0, 0, 0, 0);
 634                         ret = 1;
 635                 }
 636         } else
 637                 fprintf(stdout, "\nUse \"quit\" to exit\n");
 638
 639         return ret;
 640 }
 641
 642 static char quit_help[] =
 643 "Usage: quit\n"
 644 "       Exits Asterisk.\n";
 645
 646 static char abort_halt_help[] =
 647 "Usage: abort shutdown\n"
 648 "       Causes Asterisk to abort an executing shutdown or restart, and resume normal\n"
 649 "       call operations.\n";
 650
 651 static char shutdown_now_help[] =
 652 "Usage: stop now\n"
 653 "       Shuts down a running Asterisk immediately, hanging up all active calls .\n";
 654
 655 static char shutdown_gracefully_help[] =
 656 "Usage: stop gracefully\n"
 657 "       Causes Asterisk to not accept new calls, and exit when all\n"
 658 "       active calls have terminated normally.\n";
 659
 660 static char shutdown_when_convenient_help[] =
 661 "Usage: stop when convenient\n"
 662 "       Causes Asterisk to perform a shutdown when all active calls have ended.\n";
 663
 664 static char restart_now_help[] =
 665 "Usage: restart now\n"
 666 "       Causes Asterisk to hangup all calls and exec() itself performing a cold.\n"
 667 "       restart.\n";
 668
 669 static char restart_gracefully_help[] =
 670 "Usage: restart gracefully\n"
 671 "       Causes Asterisk to stop accepting new calls and exec() itself performing a cold.\n"
 672 "       restart when all active calls have ended.\n";
 673
 674 static char restart_when_convenient_help[] =
 675 "Usage: restart when convenient\n"
 676 "       Causes Asterisk to perform a cold restart when all active calls have ended.\n";
 677
 678 static char bang_help[] =
 679 "Usage: !<command>\n"
 680 "       Executes a given shell command\n";
 681
 682 #if 0
 683 static int handle_quit(int fd, int argc, char *argv[])
 684 {
 685         if (argc != 1)
 686                 return RESULT_SHOWUSAGE;
 687         quit_handler(0, 0, 1, 0);
 688         return RESULT_SUCCESS;
 689 }
 690 #endif
 691
 692 static int no_more_quit(int fd, int argc, char *argv[])
 693 {
 694         if (argc != 1)
 695                 return RESULT_SHOWUSAGE;
 696         ast_cli(fd, "The QUIT and EXIT commands may no longer be used to shutdown the PBX.\n"
 697                     "Please use STOP NOW instead, if you wish to shutdown the PBX.\n");
 698         return RESULT_SUCCESS;
 699 }
 700
 701 static int handle_shutdown_now(int fd, int argc, char *argv[])
 702 {
 703         if (argc != 2)
 704                 return RESULT_SHOWUSAGE;
 705         quit_handler(0, 0 /* Not nice */, 1 /* safely */, 0 /* not restart */);
 706         return RESULT_SUCCESS;
 707 }
 708
 709 static int handle_shutdown_gracefully(int fd, int argc, char *argv[])
 710 {
 711         if (argc != 2)
 712                 return RESULT_SHOWUSAGE;
 713         quit_handler(0, 1 /* nicely */, 1 /* safely */, 0 /* no restart */);
 714         return RESULT_SUCCESS;
 715 }
 716
 717 static int handle_shutdown_when_convenient(int fd, int argc, char *argv[])
 718 {
 719         if (argc != 3)
 720                 return RESULT_SHOWUSAGE;
 721         quit_handler(0, 2 /* really nicely */, 1 /* safely */, 0 /* don't restart */);
 722         return RESULT_SUCCESS;
 723 }
 724
 725 static int handle_restart_now(int fd, int argc, char *argv[])
 726 {
 727         if (argc != 2)
 728                 return RESULT_SHOWUSAGE;
 729         quit_handler(0, 0 /* not nicely */, 1 /* safely */, 1 /* restart */);
 730         return RESULT_SUCCESS;
 731 }
 732
 733 static int handle_restart_gracefully(int fd, int argc, char *argv[])
 734 {
 735         if (argc != 2)
 736                 return RESULT_SHOWUSAGE;
 737         quit_handler(0, 1 /* nicely */, 1 /* safely */, 1 /* restart */);
 738         return RESULT_SUCCESS;
 739 }
 740
 741 static int handle_restart_when_convenient(int fd, int argc, char *argv[])
 742 {
 743         if (argc != 3)
 744                 return RESULT_SHOWUSAGE;
 745         quit_handler(0, 2 /* really nicely */, 1 /* safely */, 1 /* restart */);
 746         return RESULT_SUCCESS;
 747 }
 748
 749 static int handle_abort_halt(int fd, int argc, char *argv[])
 750 {
 751         if (argc != 2)
 752                 return RESULT_SHOWUSAGE;
 753         ast_cancel_shutdown();
 754         shuttingdown = 0;
 755         return RESULT_SUCCESS;
 756 }
 757
 758 static int handle_bang(int fd, int argc, char *argv[])
 759 {
 760         return RESULT_SUCCESS;
 761 }
 762
 763 #define ASTERISK_PROMPT "*CLI> "
 764
 765 #define ASTERISK_PROMPT2 "%s*CLI> "
 766
 767 static struct ast_cli_entry aborthalt = { { "abort", "halt", NULL }, handle_abort_halt, "Cancel a running halt", abort_halt_help };
 768
 769 static struct ast_cli_entry quit =      { { "quit", NULL }, no_more_quit, "Exit Asterisk", quit_help };
 770 static struct ast_cli_entry astexit =   { { "exit", NULL }, no_more_quit, "Exit Asterisk", quit_help };
 771
 772 static struct ast_cli_entry astshutdownnow =    { { "stop", "now", NULL }, handle_shutdown_now, "Shut down Asterisk immediately", shutdown_now_help };
 773 static struct ast_cli_entry astshutdowngracefully =     { { "stop", "gracefully", NULL }, handle_shutdown_gracefully, "Gracefully shut down Asterisk", shutdown_gracefully_help };
 774 static struct ast_cli_entry astshutdownwhenconvenient =         { { "stop", "when","convenient", NULL }, handle_shutdown_when_convenient, "Shut down Asterisk at empty call volume", shutdown_when_convenient_help };
 775 static struct ast_cli_entry astrestartnow =     { { "restart", "now", NULL }, handle_restart_now, "Restart Asterisk immediately", restart_now_help };
 776 static struct ast_cli_entry astrestartgracefully =      { { "restart", "gracefully", NULL }, handle_restart_gracefully, "Restart Asterisk gracefully", restart_gracefully_help };
 777 static struct ast_cli_entry astrestartwhenconvenient=   { { "restart", "when", "convenient", NULL }, handle_restart_when_convenient, "Restart Asterisk at empty call volume", restart_when_convenient_help };
 778 static struct ast_cli_entry astbang = { { "!", NULL }, handle_bang, "Execute a shell command", bang_help };
 779
 780 static int ast_el_read_char(EditLine *el, char *cp)
 781 {
 782         int num_read=0;
 783         int lastpos=0;
 784         fd_set rfds;
 785         int res;
 786         int max;
 787         char buf[512];
 788
 789         for (;;) {
 790                 FD_ZERO(&rfds);
 791                 FD_SET(ast_consock, &rfds);
 792                 max = ast_consock;
 793                 if (!option_exec) {
 794                         FD_SET(STDIN_FILENO, &rfds);
 795                         if (STDIN_FILENO > max)
 796                                 max = STDIN_FILENO;
 797                 }
 798                 res = ast_select(max+1, &rfds, NULL, NULL, NULL);
 799                 if (res < 0) {
 800                         if (errno == EINTR)
 801                                 continue;
 802                         ast_log(LOG_ERROR, "select failed: %s\n", strerror(errno));
 803                         break;
 804                 }
 805
 806                 if (FD_ISSET(STDIN_FILENO, &rfds)) {
 807                         num_read = read(STDIN_FILENO, cp, 1);
 808                         if (num_read < 1) {
 809                                 break;
 810                         } else
 811                                 return (num_read);
 812                 }
 813                 if (FD_ISSET(ast_consock, &rfds)) {
 814                         res = read(ast_consock, buf, sizeof(buf) - 1);
 815                         /* if the remote side disappears exit */
 816                         if (res < 1) {
 817                                 fprintf(stderr, "\nDisconnected from Asterisk server\n");
 818                                 quit_handler(0, 0, 0, 0);
 819                         }
 820
 821                         buf[res] = '\0';
 822
 823                         if (!option_exec && !lastpos)
 824                                 write(STDOUT_FILENO, "\r", 1);
 825                         write(STDOUT_FILENO, buf, res);
 826                         if ((buf[res-1] == '\n') || (buf[res-2] == '\n')) {
 827                                 *cp = CC_REFRESH;
 828                                 return(1);
 829                         } else {
 830                                 lastpos = 1;
 831                         }
 832                 }
 833         }
 834
 835         *cp = '\0';
 836         return (0);
 837 }
 838
 839 static char *cli_prompt(EditLine *el)
 840 {
 841         static char prompt[80];
 842
 843         if (remotehostname)
 844                 snprintf(prompt, sizeof(prompt), ASTERISK_PROMPT2, remotehostname);
 845         else
 846                 snprintf(prompt, sizeof(prompt), ASTERISK_PROMPT);
 847
 848         return(prompt);
 849 }
 850
 851 static char **ast_el_strtoarr(char *buf)
 852 {
 853         char **match_list = NULL, *retstr;
 854         size_t match_list_len;
 855         int matches = 0;
 856
 857         match_list_len = 1;
 858         while ( (retstr = strsep(&buf, " ")) != NULL) {
 859
 860                 if (matches + 1 >= match_list_len) {
 861                         match_list_len <<= 1;
 862                         match_list = realloc(match_list, match_list_len * sizeof(char *));
 863                 }
 864
 865                 match_list[matches++] = retstr;
 866         }
 867
 868         if (!match_list)
 869                 return (char **) NULL;
 870
 871         if (matches>= match_list_len)
 872                 match_list = realloc(match_list, (match_list_len + 1) * sizeof(char *));
 873
 874         match_list[matches] = (char *) NULL;
 875
 876         return match_list;
 877 }
 878
 879 static int ast_el_sort_compare(const void *i1, const void *i2)
 880 {
 881         char *s1, *s2;
 882
 883         s1 = ((char **)i1)[0];
 884         s2 = ((char **)i2)[0];
 885
 886         return strcasecmp(s1, s2);
 887 }
 888
 889 static int ast_cli_display_match_list(char **matches, int len, int max)
 890 {
 891         int i, idx, limit, count;
 892         int screenwidth = 0;
 893         int numoutput = 0, numoutputline = 0;
 894
 895         screenwidth = ast_get_termcols(STDOUT_FILENO);
 896
 897         /* find out how many entries can be put on one line, with two spaces between strings */
 898         limit = screenwidth / (max + 2);
 899         if (limit == 0)
 900                 limit = 1;
 901
 902         /* how many lines of output */
 903         count = len / limit;
 904         if (count * limit < len)
 905                 count++;
 906
 907         idx = 1;
 908
 909         qsort(&matches[0], (size_t)(len + 1), sizeof(char *), ast_el_sort_compare);
 910
 911         for (; count > 0; count--) {
 912                 numoutputline = 0;
 913                 for (i=0; i < limit && matches[idx]; i++, idx++) {
 914
 915                         /* Don't print dupes */
 916                         if ( (matches[idx+1] != NULL && strcmp(matches[idx], matches[idx+1]) == 0 ) ) {
 917                                 i--;
 918                                 continue;
 919                         }
 920
 921                         numoutput++;  numoutputline++;
 922                         fprintf(stdout, "%-*s  ", max, matches[idx]);
 923                 }
 924                 if (numoutputline > 0)
 925                         fprintf(stdout, "\n");
 926         }
 927
 928         return numoutput;
 929 }
 930
 931
 932 static char *cli_complete(EditLine *el, int ch)
 933 {
 934         int len=0;
 935         char *ptr;
 936         int nummatches = 0;
 937         char **matches;
 938         int retval = CC_ERROR;
 939         char buf[1024];
 940         int res;
 941
 942         LineInfo *lf = (LineInfo *)el_line(el);
 943
 944         *(char *)lf->cursor = '\0';
 945         ptr = (char *)lf->cursor;
 946         if (ptr) {
 947                 while (ptr > lf->buffer) {
 948                         if (isspace(*ptr)) {
 949                                 ptr++;
 950                                 break;
 951                         }
 952                         ptr--;
 953                 }
 954         }
 955
 956         len = lf->cursor - ptr;
 957
 958         if (option_remote) {
 959                 snprintf(buf, sizeof(buf),"_COMMAND NUMMATCHES \"%s\" \"%s\"", lf->buffer, ptr);
 960                 fdprint(ast_consock, buf);
 961                 res = read(ast_consock, buf, sizeof(buf));
 962                 buf[res] = '\0';
 963                 nummatches = atoi(buf);
 964
 965                 if (nummatches > 0) {
 966                         snprintf(buf, sizeof(buf),"_COMMAND MATCHESARRAY \"%s\" \"%s\"", lf->buffer, ptr);
 967                         fdprint(ast_consock, buf);
 968                         res = read(ast_consock, buf, sizeof(buf));
 969                         buf[res] = '\0';
 970
 971                         matches = ast_el_strtoarr(buf);
 972                 } else
 973                         matches = (char **) NULL;
 974
 975
 976         }  else {
 977
 978                 nummatches = ast_cli_generatornummatches((char *)lf->buffer,ptr);
 979                 matches = ast_cli_completion_matches((char *)lf->buffer,ptr);
 980         }
 981
 982         if (matches) {
 983                 int i;
 984                 int matches_num, maxlen, match_len;
 985
 986                 if (matches[0][0] != '\0') {
 987                         el_deletestr(el, (int) len);
 988                         el_insertstr(el, matches[0]);
 989                         retval = CC_REFRESH;
 990                 }
 991
 992                 if (nummatches == 1) {
 993                         /* Found an exact match */
 994                         el_insertstr(el, " ");
 995                         retval = CC_REFRESH;
 996                 } else {
 997                         /* Must be more than one match */
 998                         for (i=1, maxlen=0; matches[i]; i++) {
 999                                 match_len = strlen(matches[i]);
1000                                 if (match_len > maxlen)
1001                                         maxlen = match_len;
1002                         }
1003                         matches_num = i - 1;
1004                         if (matches_num >1) {
1005                                 fprintf(stdout, "\n");
1006                                 ast_cli_display_match_list(matches, nummatches, maxlen);
1007                                 retval = CC_REDISPLAY;
1008                         } else {
1009                                 el_insertstr(el," ");
1010                                 retval = CC_REFRESH;
1011                         }
1012                 }
1013         free(matches);
1014         }
1015
1016         return (char *)retval;
1017 }
1018
1019 static int ast_el_initialize(void)
1020 {
1021         HistEvent ev;
1022
1023         if (el != NULL)
1024                 el_end(el);
1025         if (el_hist != NULL)
1026                 history_end(el_hist);
1027
1028         el = el_init("asterisk", stdin, stdout, stderr);
1029         el_set(el, EL_PROMPT, cli_prompt);
1030
1031         el_set(el, EL_EDITMODE, 1);
1032         el_set(el, EL_EDITOR, "emacs");
1033         el_hist = history_init();
1034         if (!el || !el_hist)
1035                 return -1;
1036
1037         /* setup history with 100 entries */
1038         history(el_hist, &ev, H_SETSIZE, 100);
1039
1040         el_set(el, EL_HIST, history, el_hist);
1041
1042         el_set(el, EL_ADDFN, "ed-complete", "Complete argument", cli_complete);
1043         /* Bind <tab> to command completion */
1044         el_set(el, EL_BIND, "^I", "ed-complete", NULL);
1045         /* Bind ? to command completion */
1046         el_set(el, EL_BIND, "?", "ed-complete", NULL);
1047
1048         return 0;
1049 }
1050
1051 static int ast_el_add_history(char *buf)
1052 {
1053         HistEvent ev;
1054
1055         if (el_hist == NULL || el == NULL)
1056                 ast_el_initialize();
1057         if (strlen(buf) > 256)
1058                 return 0;
1059         return (history(el_hist, &ev, H_ENTER, buf));
1060 }
1061
1062 static int ast_el_write_history(char *filename)
1063 {
1064         HistEvent ev;
1065
1066         if (el_hist == NULL || el == NULL)
1067                 ast_el_initialize();
1068
1069         return (history(el_hist, &ev, H_SAVE, filename));
1070 }
1071
1072 static int ast_el_read_history(char *filename)
1073 {
1074         char buf[256];
1075         FILE *f;
1076         int ret = -1;
1077
1078         if (el_hist == NULL || el == NULL)
1079                 ast_el_initialize();
1080
1081         if ((f = fopen(filename, "r")) == NULL)
1082                 return ret;
1083
1084         while (!feof(f)) {
1085                 fgets(buf, sizeof(buf), f);
1086                 if (!strcmp(buf, "_HiStOrY_V2_\n"))
1087                         continue;
1088                 if ((ret = ast_el_add_history(buf)) == -1)
1089                         break;
1090         }
1091         fclose(f);
1092
1093         return ret;
1094 }
1095
1096 static void ast_remotecontrol(char * data)
1097 {
1098         char buf[80];
1099         int res;
1100         char filename[80] = "";
1101         char *hostname;
1102         char *cpid;
1103         char *version;
1104         int pid;
1105         char tmp[80];
1106         char *stringp=NULL;
1107
1108         char *ebuf;
1109         int num = 0;
1110
1111         read(ast_consock, buf, sizeof(buf));
1112         if (data)
1113                 write(ast_consock, data, strlen(data) + 1);
1114         stringp=buf;
1115         hostname = strsep(&stringp, "/");
1116         cpid = strsep(&stringp, "/");
1117         version = strsep(&stringp, "\n");
1118         if (!version)
1119                 version = "<Version Unknown>";
1120         stringp=hostname;
1121         strsep(&stringp, ".");
1122         if (cpid)
1123                 pid = atoi(cpid);
1124         else
1125                 pid = -1;
1126         snprintf(tmp, sizeof(tmp), "set verbose atleast %d", option_verbose);
1127         fdprint(ast_consock, tmp);
1128         ast_verbose("Connected to Asterisk %s currently running on %s (pid = %d)\n", version, hostname, pid);
1129         remotehostname = hostname;
1130         if (getenv("HOME"))
1131                 snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
1132         if (el_hist == NULL || el == NULL)
1133                 ast_el_initialize();
1134
1135         el_set(el, EL_GETCFN, ast_el_read_char);
1136
1137         if (strlen(filename))
1138                 ast_el_read_history(filename);
1139
1140         ast_cli_register(&quit);
1141         ast_cli_register(&astexit);
1142 #if 0
1143         ast_cli_register(&astshutdown);
1144 #endif
1145         if (option_exec && data) {  /* hack to print output then exit if asterisk -rx is used */
1146                 char tempchar;
1147                 ast_el_read_char(el, &tempchar);
1148                 return;
1149         }
1150         for(;;) {
1151                 ebuf = (char *)el_gets(el, &num);
1152
1153                 if (ebuf && strlen(ebuf)) {
1154                         if (ebuf[strlen(ebuf)-1] == '\n')
1155                                 ebuf[strlen(ebuf)-1] = '\0';
1156                         if (!remoteconsolehandler(ebuf)) {
1157                                 res = write(ast_consock, ebuf, strlen(ebuf) + 1);
1158                                 if (res < 1) {
1159                                         ast_log(LOG_WARNING, "Unable to write: %s\n", strerror(errno));
1160                                         break;
1161                                 }
1162                         }
1163                 }
1164         }
1165         printf("\nDisconnected from Asterisk server\n");
1166 }
1167
1168 static int show_cli_help(void) {
1169         printf("Asterisk " ASTERISK_VERSION ", Copyright (C) 2000-2002, Digium.\n");
1170         printf("Usage: asterisk [OPTIONS]\n");
1171         printf("Valid Options:\n");
1172         printf("   -h           This help screen\n");
1173         printf("   -r           Connect to Asterisk on this machine\n");
1174         printf("   -f           Do not fork\n");
1175         printf("   -n           Disable console colorization\n");
1176         printf("   -p           Run as pseudo-realtime thread\n");
1177         printf("   -v           Increase verbosity (multiple v's = more verbose)\n");
1178         printf("   -q           Quiet mode (supress output)\n");
1179         printf("   -g           Dump core in case of a crash\n");
1180         printf("   -x <cmd>     Execute command <cmd> (only valid with -r)\n");
1181         printf("   -i           Initializie crypto keys at startup\n");
1182         printf("   -c           Provide console CLI\n");
1183         printf("   -d           Enable extra debugging\n");
1184         printf("\n");
1185         return 0;
1186 }
1187
1188 static void ast_readconfig(void) {
1189         struct ast_config *cfg;
1190         struct ast_variable *v;
1191         char *config = ASTCONFPATH;
1192
1193         if (option_overrideconfig == 1) {
1194             cfg = ast_load((char *)ast_config_AST_CONFIG_FILE);
1195         } else {
1196             cfg = ast_load(config);
1197         }
1198
1199         /* init with buildtime config */
1200         strncpy((char *)ast_config_AST_CONFIG_DIR,AST_CONFIG_DIR,sizeof(ast_config_AST_CONFIG_DIR)-1);
1201         strncpy((char *)ast_config_AST_SPOOL_DIR,AST_SPOOL_DIR,sizeof(ast_config_AST_SPOOL_DIR)-1);
1202         strncpy((char *)ast_config_AST_MODULE_DIR,AST_MODULE_DIR,sizeof(ast_config_AST_VAR_DIR)-1);
1203         strncpy((char *)ast_config_AST_VAR_DIR,AST_VAR_DIR,sizeof(ast_config_AST_VAR_DIR)-1);
1204         strncpy((char *)ast_config_AST_LOG_DIR,AST_LOG_DIR,sizeof(ast_config_AST_LOG_DIR)-1);
1205         strncpy((char *)ast_config_AST_AGI_DIR,AST_AGI_DIR,sizeof(ast_config_AST_AGI_DIR)-1);
1206         strncpy((char *)ast_config_AST_DB,AST_DB,sizeof(ast_config_AST_DB)-1);
1207         strncpy((char *)ast_config_AST_KEY_DIR,AST_KEY_DIR,sizeof(ast_config_AST_KEY_DIR)-1);
1208         strncpy((char *)ast_config_AST_PID,AST_PID,sizeof(ast_config_AST_PID)-1);
1209         strncpy((char *)ast_config_AST_SOCKET,AST_SOCKET,sizeof(ast_config_AST_SOCKET)-1);
1210         strncpy((char *)ast_config_AST_RUN_DIR,AST_RUN_DIR,sizeof(ast_config_AST_RUN_DIR)-1);
1211
1212         /* no asterisk.conf? no problem, use buildtime config! */
1213         if (!cfg) {
1214             return;
1215         }
1216         v = ast_variable_browse(cfg, "directories");
1217         while(v) {
1218                 if (!strcasecmp(v->name, "astetcdir")) {
1219                     strncpy((char *)ast_config_AST_CONFIG_DIR,v->value,sizeof(ast_config_AST_CONFIG_DIR)-1);
1220                 } else if (!strcasecmp(v->name, "astspooldir")) {
1221                     strncpy((char *)ast_config_AST_SPOOL_DIR,v->value,sizeof(ast_config_AST_SPOOL_DIR)-1);
1222                 } else if (!strcasecmp(v->name, "astvarlibdir")) {
1223                     strncpy((char *)ast_config_AST_VAR_DIR,v->value,sizeof(ast_config_AST_VAR_DIR)-1);
1224                     snprintf((char *)ast_config_AST_DB,sizeof(ast_config_AST_DB)-1,"%s/%s",v->value,"astdb");
1225                 } else if (!strcasecmp(v->name, "astlogdir")) {
1226                     strncpy((char *)ast_config_AST_LOG_DIR,v->value,sizeof(ast_config_AST_LOG_DIR)-1);
1227                 } else if (!strcasecmp(v->name, "astagidir")) {
1228                     strncpy((char *)ast_config_AST_AGI_DIR,v->value,sizeof(ast_config_AST_AGI_DIR)-1);
1229                 } else if (!strcasecmp(v->name, "astrundir")) {
1230                     snprintf((char *)ast_config_AST_PID,sizeof(ast_config_AST_PID)-1,"%s/%s",v->value,"asterisk.pid");
1231                     snprintf((char *)ast_config_AST_SOCKET,sizeof(ast_config_AST_SOCKET)-1,"%s/%s",v->value,"asterisk.ctl");
1232                     strncpy((char *)ast_config_AST_RUN_DIR,v->value,sizeof(ast_config_AST_RUN_DIR)-1);
1233                 } else if (!strcasecmp(v->name, "astmoddir")) {
1234                     strncpy((char *)ast_config_AST_MODULE_DIR,v->value,sizeof(ast_config_AST_MODULE_DIR)-1);
1235                 }
1236                 v = v->next;
1237         }
1238         ast_destroy(cfg);
1239 }
1240
1241 int main(int argc, char *argv[])
1242 {
1243         int c;
1244         char filename[80] = "";
1245         char hostname[256];
1246         char tmp[80];
1247         char * xarg = NULL;
1248         int x;
1249         FILE *f;
1250         sigset_t sigs;
1251         int num;
1252         char *buf;
1253
1254         /* Remember original args for restart */
1255         if (argc > sizeof(_argv) / sizeof(_argv[0]) - 1) {
1256                 fprintf(stderr, "Truncating argument size to %d\n", sizeof(_argv) / sizeof(_argv[0]) - 1);
1257                 argc = sizeof(_argv) / sizeof(_argv[0]) - 1;
1258         }
1259         for (x=0;x<argc;x++)
1260                 _argv[x] = argv[x];
1261         _argv[x] = NULL;
1262
1263         if (gethostname(hostname, sizeof(hostname)))
1264                 strncpy(hostname, "<Unknown>", sizeof(hostname)-1);
1265         mainpid = getpid();
1266         ast_ulaw_init();
1267         ast_alaw_init();
1268         callerid_init();
1269         tdd_init();
1270         if (getenv("HOME"))
1271                 snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
1272         /* Check if we're root */
1273         /*
1274         if (geteuid()) {
1275                 ast_log(LOG_ERROR, "Must be run as root\n");
1276                 exit(1);
1277         }
1278         */
1279         /* Check for options */
1280         while((c=getopt(argc, argv, "hfdvqprgcinx:C:")) != -1) {
1281                 switch(c) {
1282                 case 'd':
1283                         option_debug++;
1284                         option_nofork++;
1285                         break;
1286                 case 'c':
1287                         option_console++;
1288                         option_nofork++;
1289                         break;
1290                 case 'f':
1291                         option_nofork++;
1292                         break;
1293                 case 'n':
1294                         option_nocolor++;
1295                         break;
1296                 case 'r':
1297                         option_remote++;
1298                         option_nofork++;
1299                         break;
1300                 case 'p':
1301                         option_highpriority++;
1302                         break;
1303                 case 'v':
1304                         option_verbose++;
1305                         option_nofork++;
1306                         break;
1307                 case 'q':
1308                         option_quiet++;
1309                         break;
1310                 case 'x':
1311                         option_exec++;
1312                         xarg = optarg;
1313                         break;
1314                 case 'C':
1315                         strncpy((char *)ast_config_AST_CONFIG_FILE,optarg,sizeof(ast_config_AST_CONFIG_FILE));
1316                         option_overrideconfig++;
1317                         break;
1318                 case 'i':
1319                         option_initcrypto++;
1320                         break;
1321                 case'g':
1322                         option_dumpcore++;
1323                         break;
1324                 case 'h':
1325                         show_cli_help();
1326                         exit(0);
1327                 case '?':
1328                         exit(1);
1329                 }
1330         }
1331
1332         if (option_dumpcore) {
1333                 struct rlimit l;
1334                 memset(&l, 0, sizeof(l));
1335                 l.rlim_cur = RLIM_INFINITY;
1336                 l.rlim_max = RLIM_INFINITY;
1337                 if (setrlimit(RLIMIT_CORE, &l)) {
1338                         ast_log(LOG_WARNING, "Unable to disable core size resource limit: %s\n", strerror(errno));
1339                 }
1340         }
1341
1342         term_init();
1343         printf(term_end());
1344         fflush(stdout);
1345         if (option_console && !option_verbose)
1346                 ast_verbose("[ Reading Master Configuration ]");
1347         ast_readconfig();
1348
1349         if (option_console) {
1350                 if (el_hist == NULL || el == NULL)
1351                         ast_el_initialize();
1352
1353                 if (strlen(filename))
1354                         ast_el_read_history(filename);
1355         }
1356
1357         if (ast_tryconnect()) {
1358                 /* One is already running */
1359                 if (option_remote) {
1360                         if (option_exec) {
1361                                 ast_remotecontrol(xarg);
1362                                 quit_handler(0, 0, 0, 0);
1363                                 exit(0);
1364                         }
1365                         printf(term_quit());
1366                         ast_register_verbose(console_verboser);
1367                         ast_verbose( "Asterisk " ASTERISK_VERSION ", Copyright (C) 1999-2004 Digium.\n");
1368                         ast_verbose( "Written by Mark Spencer <markster@digium.com>\n");
1369                         ast_verbose( "=========================================================================\n");
1370                         ast_remotecontrol(NULL);
1371                         quit_handler(0, 0, 0, 0);
1372                         exit(0);
1373                 } else {
1374                         ast_log(LOG_ERROR, "Asterisk already running on %s.  Use 'asterisk -r' to connect.\n", (char *)ast_config_AST_SOCKET);
1375                         printf(term_quit());
1376                         exit(1);
1377                 }
1378         } else if (option_remote || option_exec) {
1379                 ast_log(LOG_ERROR, "Unable to connect to remote asterisk\n");
1380                 printf(term_quit());
1381                 exit(1);
1382         }
1383         /* Blindly write pid file since we couldn't connect */
1384         unlink((char *)ast_config_AST_PID);
1385         f = fopen((char *)ast_config_AST_PID, "w");
1386         if (f) {
1387                 fprintf(f, "%d\n", getpid());
1388                 fclose(f);
1389         } else
1390                 ast_log(LOG_WARNING, "Unable to open pid file '%s': %s\n", (char *)ast_config_AST_PID, strerror(errno));
1391
1392         if (!option_verbose && !option_debug && !option_nofork && !option_console) {
1393                 daemon(0,0);
1394                 /* Blindly re-write pid file since we are forking */
1395                 unlink((char *)ast_config_AST_PID);
1396                 f = fopen((char *)ast_config_AST_PID, "w");
1397                 if (f) {
1398                         fprintf(f, "%d\n", getpid());
1399                         fclose(f);
1400                 } else
1401                         ast_log(LOG_WARNING, "Unable to open pid file '%s': %s\n", (char *)ast_config_AST_PID, strerror(errno));
1402         }
1403
1404         ast_makesocket();
1405         sigemptyset(&sigs);
1406         sigaddset(&sigs, SIGHUP);
1407         sigaddset(&sigs, SIGTERM);
1408         sigaddset(&sigs, SIGINT);
1409         sigaddset(&sigs, SIGPIPE);
1410         sigaddset(&sigs, SIGWINCH);
1411         pthread_sigmask(SIG_BLOCK, &sigs, NULL);
1412         if (option_console || option_verbose || option_remote)
1413                 ast_register_verbose(console_verboser);
1414         /* Print a welcome message if desired */
1415         if (option_verbose || option_console) {
1416                 ast_verbose( "Asterisk " ASTERISK_VERSION ", Copyright (C) 1999-2001 Linux Support Services, Inc.\n");
1417                 ast_verbose( "Written by Mark Spencer <markster@linux-support.net>\n");
1418                 ast_verbose( "=========================================================================\n");
1419         }
1420         if (option_console && !option_verbose)
1421                 ast_verbose("[ Booting...");
1422
1423         signal(SIGURG, urg_handler);
1424         signal(SIGINT, __quit_handler);
1425         signal(SIGTERM, __quit_handler);
1426         signal(SIGHUP, hup_handler);
1427         signal(SIGCHLD, child_handler);
1428         signal(SIGPIPE, SIG_IGN);
1429
1430         if (set_priority(option_highpriority)) {
1431                 printf(term_quit());
1432                 exit(1);
1433         }
1434         if (init_logger()) {
1435                 printf(term_quit());
1436                 exit(1);
1437         }
1438         if (init_manager()) {
1439                 printf(term_quit());
1440                 exit(1);
1441         }
1442         ast_rtp_init();
1443         if (ast_image_init()) {
1444                 printf(term_quit());
1445                 exit(1);
1446         }
1447         if (load_pbx()) {
1448                 printf(term_quit());
1449                 exit(1);
1450         }
1451         if (load_modules()) {
1452                 printf(term_quit());
1453                 exit(1);
1454         }
1455         if (init_framer()) {
1456                 printf(term_quit());
1457                 exit(1);
1458         }
1459         if (astdb_init()) {
1460                 printf(term_quit());
1461                 exit(1);
1462         }
1463         if (ast_enum_init()) {
1464                 printf(term_quit());
1465                 exit(1);
1466         }
1467         /* We might have the option of showing a console, but for now just
1468            do nothing... */
1469         if (option_console && !option_verbose)
1470                 ast_verbose(" ]\n");
1471         if (option_verbose || option_console)
1472                 ast_verbose(term_color(tmp, "Asterisk Ready.\n", COLOR_BRWHITE, COLOR_BLACK, sizeof(tmp)));
1473         fully_booted = 1;
1474         pthread_sigmask(SIG_UNBLOCK, &sigs, NULL);
1475 #ifdef __AST_DEBUG_MALLOC
1476         __ast_mm_init();
1477 #endif
1478         time(&ast_startuptime);
1479         ast_cli_register(&astshutdownnow);
1480         ast_cli_register(&astshutdowngracefully);
1481         ast_cli_register(&astrestartnow);
1482         ast_cli_register(&astrestartgracefully);
1483         ast_cli_register(&astrestartwhenconvenient);
1484         ast_cli_register(&astshutdownwhenconvenient);
1485         ast_cli_register(&aborthalt);
1486         ast_cli_register(&astbang);
1487         if (option_nofork)
1488                 consolethread = pthread_self();
1489         if (option_console) {
1490                 /* Console stuff now... */
1491                 /* Register our quit function */
1492                 char title[256];
1493                 set_icon("Asterisk");
1494                 snprintf(title, sizeof(title), "Asterisk Console on '%s' (pid %d)", hostname, mainpid);
1495                 set_title(title);
1496             ast_cli_register(&quit);
1497             ast_cli_register(&astexit);
1498
1499                 for (;;) {
1500                         buf = (char *)el_gets(el, &num);
1501                         if (buf) {
1502                                 if (buf[strlen(buf)-1] == '\n')
1503                                         buf[strlen(buf)-1] = '\0';
1504
1505                                 consolehandler((char *)buf);
1506                         } else {
1507                                 if (option_remote)
1508                                         ast_cli(STDOUT_FILENO, "\nUse EXIT or QUIT to exit the asterisk console\n");
1509                                 else
1510                                         ast_cli(STDOUT_FILENO, "\nUse STOP NOW to shutdown Asterisk\n");
1511                         }
1512                 }
1513
1514         } else {
1515                 /* Do nothing */
1516                 ast_select(0,NULL,NULL,NULL,NULL);
1517         }
1518         return 0;
1519 }