Merged revisions 37419 via svnmerge from
[asterisk/asterisk.git] / asterisk.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2006, Digium, Inc.
5  *
6  * Mark Spencer <markster@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19
20 /* Doxygenified Copyright Header */
21 /*!
22  * \mainpage Asterisk -- An Open Source Telephony Toolkit
23  *
24  * \par Developer Documentation for Asterisk
25  * This is the main developer documentation for Asterisk. It is 
26  * generated by running "make progdocs".
27  * \par Additional documentation
28  * \arg \ref DevDoc 
29  * \arg \ref ConfigFiles
30  *
31  * \section copyright Copyright and author
32  *
33  * Copyright (C) 1999 - 2006, Digium, Inc.
34  * Asterisk is a trade mark registered by Digium, Inc.
35  *
36  * \author Mark Spencer <markster@digium.com>
37  * Also see \ref AstCREDITS
38  *
39  * \section license License
40  * See http://www.asterisk.org for more information about
41  * the Asterisk project. Please do not directly contact
42  * any of the maintainers of this project for assistance;
43  * the project provides a web site, mailing lists and IRC
44  * channels for your use.
45  *
46  * This program is free software, distributed under the terms of
47  * the GNU General Public License Version 2. See the LICENSE file
48  * at the top of the source tree.
49  *
50  * \verbinclude LICENSE
51  *
52  */
53
54 /*! \file
55   \brief Top level source file for Asterisk  - the Open Source PBX. Implementation
56   of PBX core functions and CLI interface.
57   
58  */
59
60 #include "asterisk.h"
61
62 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
63
64 #include <unistd.h>
65 #include <stdlib.h>
66 #include <sys/time.h>
67 #include <fcntl.h>
68 #include <stdio.h>
69 #include <signal.h>
70 #include <sched.h>
71 #include <sys/socket.h>
72 #include <sys/un.h>
73 #include <sys/wait.h>
74 #include <string.h>
75 #include <errno.h>
76 #include <ctype.h>
77 #include <sys/resource.h>
78 #include <grp.h>
79 #include <pwd.h>
80 #include <sys/stat.h>
81 #ifdef linux
82 #include <sys/prctl.h>
83 #endif
84 #include <regex.h>
85
86 #ifdef linux
87 #include <sys/prctl.h>
88 #endif
89
90 #if  defined(__FreeBSD__) || defined( __NetBSD__ ) || defined(SOLARIS)
91 #include <netdb.h>
92 #if defined(SOLARIS)
93 int daemon(int, int);  /* defined in libresolv of all places */
94 #endif
95 #endif
96
97 #include "asterisk/logger.h"
98 #include "asterisk/options.h"
99 #include "asterisk/cli.h"
100 #include "asterisk/channel.h"
101 #include "asterisk/ulaw.h"
102 #include "asterisk/alaw.h"
103 #include "asterisk/callerid.h"
104 #include "asterisk/image.h"
105 #include "asterisk/tdd.h"
106 #include "asterisk/term.h"
107 #include "asterisk/manager.h"
108 #include "asterisk/cdr.h"
109 #include "asterisk/pbx.h"
110 #include "asterisk/enum.h"
111 #include "asterisk/rtp.h"
112 #include "asterisk/http.h"
113 #include "asterisk/udptl.h"
114 #include "asterisk/app.h"
115 #include "asterisk/lock.h"
116 #include "asterisk/utils.h"
117 #include "asterisk/file.h"
118 #include "asterisk/io.h"
119 #include "asterisk/lock.h"
120 #include "editline/histedit.h"
121 #include "asterisk/config.h"
122 #include "asterisk/version.h"
123 #include "asterisk/linkedlists.h"
124 #include "asterisk/devicestate.h"
125
126 #include "asterisk/doxyref.h"           /* Doxygen documentation */
127
128 #include "defaults.h"
129
130 #ifndef AF_LOCAL
131 #define AF_LOCAL AF_UNIX
132 #define PF_LOCAL PF_UNIX
133 #endif
134
135 #define AST_MAX_CONNECTS 128
136 #define NUM_MSGS 64
137
138 /*! \brief Welcome message when starting a CLI interface */
139 #define WELCOME_MESSAGE \
140         ast_verbose("Asterisk " ASTERISK_VERSION ", Copyright (C) 1999 - 2006 Digium, Inc. and others.\n"); \
141         ast_verbose("Created by Mark Spencer <markster@digium.com>\n"); \
142         ast_verbose("Asterisk comes with ABSOLUTELY NO WARRANTY; type 'show warranty' for details.\n"); \
143         ast_verbose("This is free software, with components licensed under the GNU General Public\n"); \
144         ast_verbose("License version 2 and other licenses; you are welcome to redistribute it under\n"); \
145         ast_verbose("certain conditions. Type 'show license' for details.\n"); \
146         ast_verbose("=========================================================================\n")
147
148 /*! \defgroup main_options 
149  \brief Main configuration options from \ref Config_ast "asterisk.conf" or 
150   the operating system command line when starting Asterisk 
151   Some of them can be changed in the CLI 
152  */
153 /*! @{ */
154
155 extern int ast_language_is_prefix;      /* XXX move to some header */
156
157 struct ast_flags ast_options = { AST_DEFAULT_OPTIONS };
158
159 int option_verbose = 0;                         /*!< Verbosity level */
160 int option_debug = 0;                           /*!< Debug level */
161
162 double option_maxload = 0.0;                    /*!< Max load avg on system */
163 int option_maxcalls = 0;                        /*!< Max number of active calls */
164
165 /*! @} */
166
167 char record_cache_dir[AST_CACHE_DIR_LEN] = AST_TMP_DIR;
168 char debug_filename[AST_FILENAME_MAX] = "";
169
170 static int ast_socket = -1;             /*!< UNIX Socket for allowing remote control */
171 static int ast_consock = -1;            /*!< UNIX Socket for controlling another asterisk */
172 pid_t ast_mainpid;
173 struct console {
174         int fd;                         /*!< File descriptor */
175         int p[2];                       /*!< Pipe */
176         pthread_t t;                    /*!< Thread of handler */
177         int mute;                       /*!< Is the console muted for logs */
178 };
179
180 struct ast_atexit {
181         void (*func)(void);
182         AST_LIST_ENTRY(ast_atexit) list;
183 };
184
185 static AST_LIST_HEAD_STATIC(atexits, ast_atexit);
186
187 time_t ast_startuptime;
188 time_t ast_lastreloadtime;
189
190 static History *el_hist = NULL;
191 static EditLine *el = NULL;
192 static char *remotehostname;
193
194 struct console consoles[AST_MAX_CONNECTS];
195
196 char defaultlanguage[MAX_LANGUAGE] = DEFAULT_LANGUAGE;
197
198 static int ast_el_add_history(char *);
199 static int ast_el_read_history(char *);
200 static int ast_el_write_history(char *);
201
202 char ast_config_AST_CONFIG_DIR[PATH_MAX];
203 char ast_config_AST_CONFIG_FILE[PATH_MAX];
204 char ast_config_AST_MODULE_DIR[PATH_MAX];
205 char ast_config_AST_SPOOL_DIR[PATH_MAX];
206 char ast_config_AST_MONITOR_DIR[PATH_MAX];
207 char ast_config_AST_VAR_DIR[PATH_MAX];
208 char ast_config_AST_DATA_DIR[PATH_MAX];
209 char ast_config_AST_LOG_DIR[PATH_MAX];
210 char ast_config_AST_AGI_DIR[PATH_MAX];
211 char ast_config_AST_DB[PATH_MAX];
212 char ast_config_AST_KEY_DIR[PATH_MAX];
213 char ast_config_AST_PID[PATH_MAX];
214 char ast_config_AST_SOCKET[PATH_MAX];
215 char ast_config_AST_RUN_DIR[PATH_MAX];
216 char ast_config_AST_RUN_USER[PATH_MAX];
217 char ast_config_AST_RUN_GROUP[PATH_MAX];
218 char ast_config_AST_CTL_PERMISSIONS[PATH_MAX];
219 char ast_config_AST_CTL_OWNER[PATH_MAX] = "\0";
220 char ast_config_AST_CTL_GROUP[PATH_MAX] = "\0";
221 char ast_config_AST_CTL[PATH_MAX] = "asterisk.ctl";
222 char ast_config_AST_SYSTEM_NAME[20] = "";
223
224 extern const char *ast_build_hostname;
225 extern const char *ast_build_kernel;
226 extern const char *ast_build_machine;
227 extern const char *ast_build_os;
228 extern const char *ast_build_date;
229 extern const char *ast_build_user;
230
231 static char *_argv[256];
232 static int shuttingdown = 0;
233 static int restartnow = 0;
234 static pthread_t consolethread = AST_PTHREADT_NULL;
235
236 static char randompool[256];
237
238 #if !defined(LOW_MEMORY)
239 struct file_version {
240         AST_LIST_ENTRY(file_version) list;
241         const char *file;
242         char *version;
243 };
244
245 static AST_LIST_HEAD_STATIC(file_versions, file_version);
246
247 void ast_register_file_version(const char *file, const char *version)
248 {
249         struct file_version *new;
250         char *work;
251         size_t version_length;
252
253         work = ast_strdupa(version);
254         work = ast_strip(ast_strip_quoted(work, "$", "$"));
255         version_length = strlen(work) + 1;
256         
257         if (!(new = ast_calloc(1, sizeof(*new) + version_length)))
258                 return;
259
260         new->file = file;
261         new->version = (char *) new + sizeof(*new);
262         memcpy(new->version, work, version_length);
263         AST_LIST_LOCK(&file_versions);
264         AST_LIST_INSERT_HEAD(&file_versions, new, list);
265         AST_LIST_UNLOCK(&file_versions);
266 }
267
268 void ast_unregister_file_version(const char *file)
269 {
270         struct file_version *find;
271
272         AST_LIST_LOCK(&file_versions);
273         AST_LIST_TRAVERSE_SAFE_BEGIN(&file_versions, find, list) {
274                 if (!strcasecmp(find->file, file)) {
275                         AST_LIST_REMOVE_CURRENT(&file_versions, list);
276                         break;
277                 }
278         }
279         AST_LIST_TRAVERSE_SAFE_END;
280         AST_LIST_UNLOCK(&file_versions);
281         if (find)
282                 free(find);
283 }
284
285 struct thread_list_t {
286         AST_LIST_ENTRY(thread_list_t) list;
287         char *name;
288         pthread_t id;
289 };
290
291 static AST_LIST_HEAD_STATIC(thread_list, thread_list_t);
292
293 static char show_threads_help[] =
294 "Usage: show threads\n"
295 "       List threads currently active in the system.\n";
296
297 void ast_register_thread(char *name)
298
299         struct thread_list_t *new = ast_calloc(1, sizeof(*new));
300
301         if (!new)
302                 return;
303         new->id = pthread_self();
304         new->name = name; /* this was a copy already */
305         AST_LIST_LOCK(&thread_list);
306         AST_LIST_INSERT_HEAD(&thread_list, new, list);
307         AST_LIST_UNLOCK(&thread_list);
308 }
309
310 void ast_unregister_thread(void *id)
311 {
312         struct thread_list_t *x;
313
314         AST_LIST_LOCK(&thread_list);
315         AST_LIST_TRAVERSE_SAFE_BEGIN(&thread_list, x, list) {
316                 if ((void *)x->id == id) {
317                         AST_LIST_REMOVE_CURRENT(&thread_list, list);
318                         break;
319                 }
320         }
321         AST_LIST_TRAVERSE_SAFE_END;
322         AST_LIST_UNLOCK(&thread_list);
323         if (x) {
324                 free(x->name);
325                 free(x);
326         }
327 }
328
329 static int handle_show_threads(int fd, int argc, char *argv[])
330 {
331         int count = 0;
332         struct thread_list_t *cur;
333
334         AST_LIST_LOCK(&thread_list);
335         AST_LIST_TRAVERSE(&thread_list, cur, list) {
336                 ast_cli(fd, "%p %s\n", (void *)cur->id, cur->name);
337                 count++;
338         }
339         AST_LIST_UNLOCK(&thread_list);
340         ast_cli(fd, "%d threads listed.\n", count);
341         return 0;
342 }
343
344 struct profile_entry {
345         const char *name;
346         uint64_t        scale;  /* if non-zero, values are scaled by this */
347         int64_t mark;
348         int64_t value;
349         int64_t events;
350 };
351
352 struct profile_data {
353         int entries;
354         int max_size;
355         struct profile_entry e[0];
356 };
357
358 static struct profile_data *prof_data;
359
360 /*! \brief allocates a counter with a given name and scale.
361  * \return Returns the identifier of the counter.
362  */
363 int ast_add_profile(const char *name, uint64_t scale)
364 {
365         int l = sizeof(struct profile_data);
366         int n = 10;     /* default entries */
367
368         if (prof_data == NULL) {
369                 prof_data = ast_calloc(1, l + n*sizeof(struct profile_entry));
370                 if (prof_data == NULL)
371                         return -1;
372                 prof_data->entries = 0;
373                 prof_data->max_size = n;
374         }
375         if (prof_data->entries >= prof_data->max_size) {
376                 void *p;
377                 n = prof_data->max_size + 20;
378                 p = ast_realloc(prof_data, l + n*sizeof(struct profile_entry));
379                 if (p == NULL)
380                         return -1;
381                 prof_data = p;
382                 prof_data->max_size = n;
383         }
384         n = prof_data->entries++;
385         prof_data->e[n].name = ast_strdup(name);
386         prof_data->e[n].value = 0;
387         prof_data->e[n].events = 0;
388         prof_data->e[n].mark = 0;
389         prof_data->e[n].scale = scale;
390         return n;
391 }
392
393 int64_t ast_profile(int i, int64_t delta)
394 {
395         if (!prof_data || i < 0 || i > prof_data->entries)      /* invalid index */
396                 return 0;
397         if (prof_data->e[i].scale > 1)
398                 delta /= prof_data->e[i].scale;
399         prof_data->e[i].value += delta;
400         prof_data->e[i].events++;
401         return prof_data->e[i].value;
402 }
403
404 #if defined ( __i386__) && (defined(__FreeBSD__) || defined(linux))
405 #if defined(__FreeBSD__)
406 #include <machine/cpufunc.h>
407 #elif defined(linux)
408 static __inline u_int64_t
409 rdtsc(void)
410
411         uint64_t rv;
412
413         __asm __volatile(".byte 0x0f, 0x31" : "=A" (rv));
414         return (rv);
415 }
416 #endif
417 #else   /* supply a dummy function on other platforms */
418 static __inline u_int64_t
419 rdtsc(void)
420 {
421         return 0;
422 }
423 #endif
424
425 int64_t ast_mark(int i, int startstop)
426 {
427         if (!prof_data || i < 0 || i > prof_data->entries) /* invalid index */
428                 return 0;
429         if (startstop == 1)
430                 prof_data->e[i].mark = rdtsc();
431         else {
432                 prof_data->e[i].mark = (rdtsc() - prof_data->e[i].mark);
433                 if (prof_data->e[i].scale > 1)
434                         prof_data->e[i].mark /= prof_data->e[i].scale;
435                 prof_data->e[i].value += prof_data->e[i].mark;
436                 prof_data->e[i].events++;
437         }
438         return prof_data->e[i].mark;
439 }
440
441 static int handle_show_profile(int fd, int argc, char *argv[])
442 {
443         int i, min, max;
444         char *search = NULL;
445
446         if (prof_data == NULL)
447                 return 0;
448
449         min = 0;
450         max = prof_data->entries;
451         if  (argc >= 3) { /* specific entries */
452                 if (isdigit(argv[2][0])) {
453                         min = atoi(argv[2]);
454                         if (argc == 4 && strcmp(argv[3], "-"))
455                                 max = atoi(argv[3]);
456                 } else
457                         search = argv[2];
458         }
459         if (max > prof_data->entries)
460                 max = prof_data->entries;
461         if (!strcmp(argv[0], "clear")) {
462                 for (i= min; i < max; i++) {
463                         if (!search || strstr(prof_data->e[i].name, search)) {
464                                 prof_data->e[i].value = 0;
465                                 prof_data->e[i].events = 0;
466                         }
467                 }
468                 return 0;
469         }
470         ast_cli(fd, "profile values (%d, allocated %d)\n-------------------\n",
471                 prof_data->entries, prof_data->max_size);
472         for (i = min; i < max; i++) {
473                 struct profile_entry *e = &prof_data->e[i];
474                 if (!search || strstr(prof_data->e[i].name, search))
475                     ast_cli(fd, "%6d: [%8ld] %10ld %12lld %12lld %s\n",
476                         i,
477                         (long)e->scale,
478                         (long)e->events, (long long)e->value,
479                         (long long)(e->events ? e->value / e->events : e->value),
480                         e->name);
481         }
482         return 0;
483 }
484
485 static char show_version_files_help[] = 
486 "Usage: show version files [like <pattern>]\n"
487 "       Shows the revision numbers of the files used to build this copy of Asterisk.\n"
488 "       Optional regular expression pattern is used to filter the file list.\n";
489
490 /*! \brief CLI command to list module versions */
491 static int handle_show_version_files(int fd, int argc, char *argv[])
492 {
493 #define FORMAT "%-25.25s %-40.40s\n"
494         struct file_version *iterator;
495         regex_t regexbuf;
496         int havepattern = 0;
497         int havename = 0;
498         int count_files = 0;
499
500         switch (argc) {
501         case 5:
502                 if (!strcasecmp(argv[3], "like")) {
503                         if (regcomp(&regexbuf, argv[4], REG_EXTENDED | REG_NOSUB))
504                                 return RESULT_SHOWUSAGE;
505                         havepattern = 1;
506                 } else
507                         return RESULT_SHOWUSAGE;
508                 break;
509         case 4:
510                 havename = 1;
511                 break;
512         case 3:
513                 break;
514         default:
515                 return RESULT_SHOWUSAGE;
516         }
517
518         ast_cli(fd, FORMAT, "File", "Revision");
519         ast_cli(fd, FORMAT, "----", "--------");
520         AST_LIST_LOCK(&file_versions);
521         AST_LIST_TRAVERSE(&file_versions, iterator, list) {
522                 if (havename && strcasecmp(iterator->file, argv[3]))
523                         continue;
524
525                 if (havepattern && regexec(&regexbuf, iterator->file, 0, NULL, 0))
526                         continue;
527
528                 ast_cli(fd, FORMAT, iterator->file, iterator->version);
529                 count_files++;
530                 if (havename)
531                         break;
532         }
533         AST_LIST_UNLOCK(&file_versions);
534         if (!havename) {
535                 ast_cli(fd, "%d files listed.\n", count_files);
536         }
537
538         if (havepattern)
539                 regfree(&regexbuf);
540
541         return RESULT_SUCCESS;
542 #undef FORMAT
543 }
544
545 static char *complete_show_version_files(const char *line, const char *word, int pos, int state)
546 {
547         struct file_version *find;
548         int which = 0;
549         char *ret = NULL;
550         int matchlen = strlen(word);
551
552         if (pos != 3)
553                 return NULL;
554
555         AST_LIST_LOCK(&file_versions);
556         AST_LIST_TRAVERSE(&file_versions, find, list) {
557                 if (!strncasecmp(word, find->file, matchlen) && ++which > state) {
558                         ret = ast_strdup(find->file);
559                         break;
560                 }
561         }
562         AST_LIST_UNLOCK(&file_versions);
563
564         return ret;
565 }
566 #endif /* ! LOW_MEMORY */
567
568 int ast_register_atexit(void (*func)(void))
569 {
570         int res = -1;
571         struct ast_atexit *ae;
572         ast_unregister_atexit(func);    
573         AST_LIST_LOCK(&atexits);
574         if ((ae = ast_calloc(1, sizeof(*ae)))) {
575                 AST_LIST_INSERT_HEAD(&atexits, ae, list);
576                 ae->func = func;
577                 res = 0;
578         }
579         AST_LIST_UNLOCK(&atexits);
580         return res;
581 }
582
583 void ast_unregister_atexit(void (*func)(void))
584 {
585         struct ast_atexit *ae;
586         AST_LIST_LOCK(&atexits);
587         AST_LIST_TRAVERSE_SAFE_BEGIN(&atexits, ae, list) {
588                 if (ae->func == func) {
589                         AST_LIST_REMOVE_CURRENT(&atexits, list);
590                         break;
591                 }
592         }
593         AST_LIST_TRAVERSE_SAFE_END
594         AST_LIST_UNLOCK(&atexits);
595 }
596
597 static int fdprint(int fd, const char *s)
598 {
599         return write(fd, s, strlen(s) + 1);
600 }
601
602 /*! \brief NULL handler so we can collect the child exit status */
603 static void null_sig_handler(int signal)
604 {
605
606 }
607
608 AST_MUTEX_DEFINE_STATIC(safe_system_lock);
609 /*! \brief Keep track of how many threads are currently trying to wait*() on
610  *  a child process */
611 static unsigned int safe_system_level = 0;
612 static void *safe_system_prev_handler;
613
614 void ast_replace_sigchld(void)
615 {
616         unsigned int level;
617
618         ast_mutex_lock(&safe_system_lock);
619         level = safe_system_level++;
620
621         /* only replace the handler if it has not already been done */
622         if (level == 0)
623                 safe_system_prev_handler = signal(SIGCHLD, null_sig_handler);
624
625         ast_mutex_unlock(&safe_system_lock);
626 }
627
628 void ast_unreplace_sigchld(void)
629 {
630         unsigned int level;
631
632         ast_mutex_lock(&safe_system_lock);
633         level = --safe_system_level;
634
635         /* only restore the handler if we are the last one */
636         if (level == 0)
637                 signal(SIGCHLD, safe_system_prev_handler);
638
639         ast_mutex_unlock(&safe_system_lock);
640 }
641
642 int ast_safe_system(const char *s)
643 {
644         pid_t pid;
645         int x;
646         int res;
647         struct rusage rusage;
648         int status;
649
650         ast_replace_sigchld();
651
652         pid = fork();
653
654         if (pid == 0) {
655                 if (ast_opt_high_priority)
656                         ast_set_priority(0);
657                 /* Close file descriptors and launch system command */
658                 for (x = STDERR_FILENO + 1; x < 4096; x++)
659                         close(x);
660                 execl("/bin/sh", "/bin/sh", "-c", s, (char *) NULL);
661                 exit(1);
662         } else if (pid > 0) {
663                 for(;;) {
664                         res = wait4(pid, &status, 0, &rusage);
665                         if (res > -1) {
666                                 res = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
667                                 break;
668                         } else if (errno != EINTR) 
669                                 break;
670                 }
671         } else {
672                 ast_log(LOG_WARNING, "Fork failed: %s\n", strerror(errno));
673                 res = -1;
674         }
675
676         ast_unreplace_sigchld();
677
678         return res;
679 }
680
681 /*!
682  * \brief mute or unmute a console from logging
683  */
684 void ast_console_toggle_mute(int fd) {
685         int x;
686         for (x = 0;x < AST_MAX_CONNECTS; x++) {
687                 if (fd == consoles[x].fd) {
688                         if (consoles[x].mute) {
689                                 consoles[x].mute = 0;
690                                 ast_cli(fd, "Console is not muted anymore.\n");
691                         } else {
692                                 consoles[x].mute = 1;
693                                 ast_cli(fd, "Console is muted.\n");
694                         }
695                         return;
696                 }
697         }
698         ast_cli(fd, "Couldn't find remote console.\n");
699 }
700
701 /*!
702  * \brief log the string to all attached console clients
703  */
704 static void ast_network_puts_mutable(const char *string)
705 {
706         int x;
707         for (x = 0;x < AST_MAX_CONNECTS; x++) {
708                 if (consoles[x].mute)
709                         continue;
710                 if (consoles[x].fd > -1) 
711                         fdprint(consoles[x].p[1], string);
712         }
713 }
714
715 /*!
716  * \brief log the string to the console, and all attached
717  * console clients
718  */
719 void ast_console_puts_mutable(const char *string)
720 {
721         fputs(string, stdout);
722         fflush(stdout);
723         ast_network_puts_mutable(string);
724 }
725
726 /*!
727  * \brief write the string to all attached console clients
728  */
729 static void ast_network_puts(const char *string)
730 {
731         int x;
732         for (x=0; x < AST_MAX_CONNECTS; x++) {
733                 if (consoles[x].fd > -1) 
734                         fdprint(consoles[x].p[1], string);
735         }
736 }
737
738 /*!
739  * write the string to the console, and all attached
740  * console clients
741  */
742 void ast_console_puts(const char *string)
743 {
744         fputs(string, stdout);
745         fflush(stdout);
746         ast_network_puts(string);
747 }
748
749 static void network_verboser(const char *s, int pos, int replace, int complete)
750         /* ARGUSED */
751 {
752         if (replace) {
753                 char *t;
754                 if ((t = alloca(strlen(s) + 2))) {
755                         sprintf(t, "\r%s", s);
756                         if (complete)
757                                 ast_network_puts_mutable(t);
758                 } else {
759                         ast_log(LOG_ERROR, "Out of memory\n");
760                         ast_network_puts_mutable(s);
761                 }
762         } else {
763                 if (complete)
764                         ast_network_puts_mutable(s);
765         }
766 }
767
768 static pthread_t lthread;
769
770 static void *netconsole(void *vconsole)
771 {
772         struct console *con = vconsole;
773         char hostname[MAXHOSTNAMELEN] = "";
774         char tmp[512];
775         int res;
776         struct pollfd fds[2];
777         
778         if (gethostname(hostname, sizeof(hostname)-1))
779                 ast_copy_string(hostname, "<Unknown>", sizeof(hostname));
780         snprintf(tmp, sizeof(tmp), "%s/%ld/%s\n", hostname, (long)ast_mainpid, ASTERISK_VERSION);
781         fdprint(con->fd, tmp);
782         for(;;) {
783                 fds[0].fd = con->fd;
784                 fds[0].events = POLLIN;
785                 fds[0].revents = 0;
786                 fds[1].fd = con->p[0];
787                 fds[1].events = POLLIN;
788                 fds[1].revents = 0;
789
790                 res = poll(fds, 2, -1);
791                 if (res < 0) {
792                         if (errno != EINTR)
793                                 ast_log(LOG_WARNING, "poll returned < 0: %s\n", strerror(errno));
794                         continue;
795                 }
796                 if (fds[0].revents) {
797                         res = read(con->fd, tmp, sizeof(tmp));
798                         if (res < 1) {
799                                 break;
800                         }
801                         tmp[res] = 0;
802                         ast_cli_command(con->fd, tmp);
803                 }
804                 if (fds[1].revents) {
805                         res = read(con->p[0], tmp, sizeof(tmp));
806                         if (res < 1) {
807                                 ast_log(LOG_ERROR, "read returned %d\n", res);
808                                 break;
809                         }
810                         res = write(con->fd, tmp, res);
811                         if (res < 1)
812                                 break;
813                 }
814         }
815         if (option_verbose > 2) 
816                 ast_verbose(VERBOSE_PREFIX_3 "Remote UNIX connection disconnected\n");
817         close(con->fd);
818         close(con->p[0]);
819         close(con->p[1]);
820         con->fd = -1;
821         
822         return NULL;
823 }
824
825 static void *listener(void *unused)
826 {
827         struct sockaddr_un sunaddr;
828         int s;
829         socklen_t len;
830         int x;
831         int flags;
832         struct pollfd fds[1];
833         pthread_attr_t attr;
834         pthread_attr_init(&attr);
835         pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
836         for (;;) {
837                 if (ast_socket < 0)
838                         return NULL;
839                 fds[0].fd = ast_socket;
840                 fds[0].events = POLLIN;
841                 s = poll(fds, 1, -1);
842                 pthread_testcancel();
843                 if (s < 0) {
844                         if (errno != EINTR)
845                                 ast_log(LOG_WARNING, "poll returned error: %s\n", strerror(errno));
846                         continue;
847                 }
848                 len = sizeof(sunaddr);
849                 s = accept(ast_socket, (struct sockaddr *)&sunaddr, &len);
850                 if (s < 0) {
851                         if (errno != EINTR)
852                                 ast_log(LOG_WARNING, "Accept returned %d: %s\n", s, strerror(errno));
853                 } else {
854                         for (x = 0; x < AST_MAX_CONNECTS; x++) {
855                                 if (consoles[x].fd < 0) {
856                                         if (socketpair(AF_LOCAL, SOCK_STREAM, 0, consoles[x].p)) {
857                                                 ast_log(LOG_ERROR, "Unable to create pipe: %s\n", strerror(errno));
858                                                 consoles[x].fd = -1;
859                                                 fdprint(s, "Server failed to create pipe\n");
860                                                 close(s);
861                                                 break;
862                                         }
863                                         flags = fcntl(consoles[x].p[1], F_GETFL);
864                                         fcntl(consoles[x].p[1], F_SETFL, flags | O_NONBLOCK);
865                                         consoles[x].fd = s;
866                                         consoles[x].mute = ast_opt_mute;
867                                         if (ast_pthread_create(&consoles[x].t, &attr, netconsole, &consoles[x])) {
868                                                 ast_log(LOG_ERROR, "Unable to spawn thread to handle connection: %s\n", strerror(errno));
869                                                 close(consoles[x].p[0]);
870                                                 close(consoles[x].p[1]);
871                                                 consoles[x].fd = -1;
872                                                 fdprint(s, "Server failed to spawn thread\n");
873                                                 close(s);
874                                         }
875                                         break;
876                                 }
877                         }
878                         if (x >= AST_MAX_CONNECTS) {
879                                 fdprint(s, "No more connections allowed\n");
880                                 ast_log(LOG_WARNING, "No more connections allowed\n");
881                                 close(s);
882                         } else if (consoles[x].fd > -1) {
883                                 if (option_verbose > 2) 
884                                         ast_verbose(VERBOSE_PREFIX_3 "Remote UNIX connection\n");
885                         }
886                 }
887         }
888         return NULL;
889 }
890
891 static int ast_makesocket(void)
892 {
893         struct sockaddr_un sunaddr;
894         int res;
895         int x;
896         uid_t uid = -1;
897         gid_t gid = -1;
898
899         for (x = 0; x < AST_MAX_CONNECTS; x++)  
900                 consoles[x].fd = -1;
901         unlink(ast_config_AST_SOCKET);
902         ast_socket = socket(PF_LOCAL, SOCK_STREAM, 0);
903         if (ast_socket < 0) {
904                 ast_log(LOG_WARNING, "Unable to create control socket: %s\n", strerror(errno));
905                 return -1;
906         }               
907         memset(&sunaddr, 0, sizeof(sunaddr));
908         sunaddr.sun_family = AF_LOCAL;
909         ast_copy_string(sunaddr.sun_path, ast_config_AST_SOCKET, sizeof(sunaddr.sun_path));
910         res = bind(ast_socket, (struct sockaddr *)&sunaddr, sizeof(sunaddr));
911         if (res) {
912                 ast_log(LOG_WARNING, "Unable to bind socket to %s: %s\n", ast_config_AST_SOCKET, strerror(errno));
913                 close(ast_socket);
914                 ast_socket = -1;
915                 return -1;
916         }
917         res = listen(ast_socket, 2);
918         if (res < 0) {
919                 ast_log(LOG_WARNING, "Unable to listen on socket %s: %s\n", ast_config_AST_SOCKET, strerror(errno));
920                 close(ast_socket);
921                 ast_socket = -1;
922                 return -1;
923         }
924         ast_register_verbose(network_verboser);
925         ast_pthread_create(&lthread, NULL, listener, NULL);
926
927         if (!ast_strlen_zero(ast_config_AST_CTL_OWNER)) {
928                 struct passwd *pw;
929                 if ((pw = getpwnam(ast_config_AST_CTL_OWNER)) == NULL) {
930                         ast_log(LOG_WARNING, "Unable to find uid of user %s\n", ast_config_AST_CTL_OWNER);
931                 } else {
932                         uid = pw->pw_uid;
933                 }
934         }
935                 
936         if (!ast_strlen_zero(ast_config_AST_CTL_GROUP)) {
937                 struct group *grp;
938                 if ((grp = getgrnam(ast_config_AST_CTL_GROUP)) == NULL) {
939                         ast_log(LOG_WARNING, "Unable to find gid of group %s\n", ast_config_AST_CTL_GROUP);
940                 } else {
941                         gid = grp->gr_gid;
942                 }
943         }
944
945         if (chown(ast_config_AST_SOCKET, uid, gid) < 0)
946                 ast_log(LOG_WARNING, "Unable to change ownership of %s: %s\n", ast_config_AST_SOCKET, strerror(errno));
947
948         if (!ast_strlen_zero(ast_config_AST_CTL_PERMISSIONS)) {
949                 int p1;
950                 mode_t p;
951                 sscanf(ast_config_AST_CTL_PERMISSIONS, "%o", &p1);
952                 p = p1;
953                 if ((chmod(ast_config_AST_SOCKET, p)) < 0)
954                         ast_log(LOG_WARNING, "Unable to change file permissions of %s: %s\n", ast_config_AST_SOCKET, strerror(errno));
955         }
956
957         return 0;
958 }
959
960 static int ast_tryconnect(void)
961 {
962         struct sockaddr_un sunaddr;
963         int res;
964         ast_consock = socket(PF_LOCAL, SOCK_STREAM, 0);
965         if (ast_consock < 0) {
966                 ast_log(LOG_WARNING, "Unable to create socket: %s\n", strerror(errno));
967                 return 0;
968         }
969         memset(&sunaddr, 0, sizeof(sunaddr));
970         sunaddr.sun_family = AF_LOCAL;
971         ast_copy_string(sunaddr.sun_path, (char *)ast_config_AST_SOCKET, sizeof(sunaddr.sun_path));
972         res = connect(ast_consock, (struct sockaddr *)&sunaddr, sizeof(sunaddr));
973         if (res) {
974                 close(ast_consock);
975                 ast_consock = -1;
976                 return 0;
977         } else
978                 return 1;
979 }
980
981 /*! \brief Urgent handler
982
983  Called by soft_hangup to interrupt the poll, read, or other
984  system call.  We don't actually need to do anything though.  
985  Remember: Cannot EVER ast_log from within a signal handler 
986  */
987 static void urg_handler(int num)
988 {
989         signal(num, urg_handler);
990         return;
991 }
992
993 static void hup_handler(int num)
994 {
995         if (option_verbose > 1) 
996                 printf("Received HUP signal -- Reloading configs\n");
997         if (restartnow)
998                 execvp(_argv[0], _argv);
999         /* XXX This could deadlock XXX */
1000         ast_module_reload(NULL);
1001         signal(num, hup_handler);
1002 }
1003
1004 static void child_handler(int sig)
1005 {
1006         /* Must not ever ast_log or ast_verbose within signal handler */
1007         int n, status;
1008
1009         /*
1010          * Reap all dead children -- not just one
1011          */
1012         for (n = 0; wait4(-1, &status, WNOHANG, NULL) > 0; n++)
1013                 ;
1014         if (n == 0 && option_debug)     
1015                 printf("Huh?  Child handler, but nobody there?\n");
1016         signal(sig, child_handler);
1017 }
1018
1019 /*! \brief Set an X-term or screen title */
1020 static void set_title(char *text)
1021 {
1022         if (getenv("TERM") && strstr(getenv("TERM"), "xterm"))
1023                 fprintf(stdout, "\033]2;%s\007", text);
1024 }
1025
1026 static void set_icon(char *text)
1027 {
1028         if (getenv("TERM") && strstr(getenv("TERM"), "xterm"))
1029                 fprintf(stdout, "\033]1;%s\007", text);
1030 }
1031
1032 /*! \brief We set ourselves to a high priority, that we might pre-empt everything
1033    else.  If your PBX has heavy activity on it, this is a good thing.  */
1034 int ast_set_priority(int pri)
1035 {
1036         struct sched_param sched;
1037         memset(&sched, 0, sizeof(sched));
1038 #ifdef __linux__
1039         if (pri) {  
1040                 sched.sched_priority = 10;
1041                 if (sched_setscheduler(0, SCHED_RR, &sched)) {
1042                         ast_log(LOG_WARNING, "Unable to set high priority\n");
1043                         return -1;
1044                 } else
1045                         if (option_verbose)
1046                                 ast_verbose("Set to realtime thread\n");
1047         } else {
1048                 sched.sched_priority = 0;
1049                 if (sched_setscheduler(0, SCHED_OTHER, &sched)) {
1050                         ast_log(LOG_WARNING, "Unable to set normal priority\n");
1051                         return -1;
1052                 }
1053         }
1054 #else
1055         if (pri) {
1056                 if (setpriority(PRIO_PROCESS, 0, -10) == -1) {
1057                         ast_log(LOG_WARNING, "Unable to set high priority\n");
1058                         return -1;
1059                 } else
1060                         if (option_verbose)
1061                                 ast_verbose("Set to high priority\n");
1062         } else {
1063                 if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
1064                         ast_log(LOG_WARNING, "Unable to set normal priority\n");
1065                         return -1;
1066                 }
1067         }
1068 #endif
1069         return 0;
1070 }
1071
1072 static void ast_run_atexits(void)
1073 {
1074         struct ast_atexit *ae;
1075         AST_LIST_LOCK(&atexits);
1076         AST_LIST_TRAVERSE(&atexits, ae, list) {
1077                 if (ae->func) 
1078                         ae->func();
1079         }
1080         AST_LIST_UNLOCK(&atexits);
1081 }
1082
1083 static void quit_handler(int num, int nice, int safeshutdown, int restart)
1084 {
1085         char filename[80] = "";
1086         time_t s,e;
1087         int x;
1088         /* Try to get as many CDRs as possible submitted to the backend engines (if in batch mode) */
1089         ast_cdr_engine_term();
1090         if (safeshutdown) {
1091                 shuttingdown = 1;
1092                 if (!nice) {
1093                         /* Begin shutdown routine, hanging up active channels */
1094                         ast_begin_shutdown(1);
1095                         if (option_verbose && ast_opt_console)
1096                                 ast_verbose("Beginning asterisk %s....\n", restart ? "restart" : "shutdown");
1097                         time(&s);
1098                         for (;;) {
1099                                 time(&e);
1100                                 /* Wait up to 15 seconds for all channels to go away */
1101                                 if ((e - s) > 15)
1102                                         break;
1103                                 if (!ast_active_channels())
1104                                         break;
1105                                 if (!shuttingdown)
1106                                         break;
1107                                 /* Sleep 1/10 of a second */
1108                                 usleep(100000);
1109                         }
1110                 } else {
1111                         if (nice < 2)
1112                                 ast_begin_shutdown(0);
1113                         if (option_verbose && ast_opt_console)
1114                                 ast_verbose("Waiting for inactivity to perform %s...\n", restart ? "restart" : "halt");
1115                         for (;;) {
1116                                 if (!ast_active_channels())
1117                                         break;
1118                                 if (!shuttingdown)
1119                                         break;
1120                                 sleep(1);
1121                         }
1122                 }
1123
1124                 if (!shuttingdown) {
1125                         if (option_verbose && ast_opt_console)
1126                                 ast_verbose("Asterisk %s cancelled.\n", restart ? "restart" : "shutdown");
1127                         return;
1128                 }
1129         }
1130         if (ast_opt_console || ast_opt_remote) {
1131                 if (getenv("HOME")) 
1132                         snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
1133                 if (!ast_strlen_zero(filename))
1134                         ast_el_write_history(filename);
1135                 if (el != NULL)
1136                         el_end(el);
1137                 if (el_hist != NULL)
1138                         history_end(el_hist);
1139         }
1140         if (option_verbose)
1141                 ast_verbose("Executing last minute cleanups\n");
1142         ast_run_atexits();
1143         /* Called on exit */
1144         if (option_verbose && ast_opt_console)
1145                 ast_verbose("Asterisk %s ending (%d).\n", ast_active_channels() ? "uncleanly" : "cleanly", num);
1146         else if (option_debug)
1147                 ast_log(LOG_DEBUG, "Asterisk ending (%d).\n", num);
1148         manager_event(EVENT_FLAG_SYSTEM, "Shutdown", "Shutdown: %s\r\nRestart: %s\r\n", ast_active_channels() ? "Uncleanly" : "Cleanly", restart ? "True" : "False");
1149         if (ast_socket > -1) {
1150                 pthread_cancel(lthread);
1151                 close(ast_socket);
1152                 ast_socket = -1;
1153                 unlink(ast_config_AST_SOCKET);
1154         }
1155         if (ast_consock > -1)
1156                 close(ast_consock);
1157         if (!ast_opt_remote)
1158                 unlink(ast_config_AST_PID);
1159         printf(term_quit());
1160         if (restart) {
1161                 if (option_verbose || ast_opt_console)
1162                         ast_verbose("Preparing for Asterisk restart...\n");
1163                 /* Mark all FD's for closing on exec */
1164                 for (x=3; x < 32768; x++) {
1165                         fcntl(x, F_SETFD, FD_CLOEXEC);
1166                 }
1167                 if (option_verbose || ast_opt_console)
1168                         ast_verbose("Restarting Asterisk NOW...\n");
1169                 restartnow = 1;
1170
1171                 /* close logger */
1172                 close_logger();
1173
1174                 /* If there is a consolethread running send it a SIGHUP 
1175                    so it can execvp, otherwise we can do it ourselves */
1176                 if ((consolethread != AST_PTHREADT_NULL) && (consolethread != pthread_self())) {
1177                         pthread_kill(consolethread, SIGHUP);
1178                         /* Give the signal handler some time to complete */
1179                         sleep(2);
1180                 } else
1181                         execvp(_argv[0], _argv);
1182         
1183         } else {
1184                 /* close logger */
1185                 close_logger();
1186         }
1187         exit(0);
1188 }
1189
1190 static void __quit_handler(int num)
1191 {
1192         quit_handler(num, 0, 1, 0);
1193 }
1194
1195 static const char *fix_header(char *outbuf, int maxout, const char *s, char *cmp)
1196 {
1197         const char *c;
1198         if (!strncmp(s, cmp, strlen(cmp))) {
1199                 c = s + strlen(cmp);
1200                 term_color(outbuf, cmp, COLOR_GRAY, 0, maxout);
1201                 return c;
1202         }
1203         return NULL;
1204 }
1205
1206 static void console_verboser(const char *s, int pos, int replace, int complete)
1207 {
1208         char tmp[80];
1209         const char *c = NULL;
1210         /* Return to the beginning of the line */
1211         if (!pos) {
1212                 fprintf(stdout, "\r");
1213                 if ((c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_4)) ||
1214                         (c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_3)) ||
1215                         (c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_2)) ||
1216                         (c = fix_header(tmp, sizeof(tmp), s, VERBOSE_PREFIX_1)))
1217                         fputs(tmp, stdout);
1218         }
1219         if (c)
1220                 fputs(c + pos,stdout);
1221         else
1222                 fputs(s + pos,stdout);
1223         fflush(stdout);
1224         if (complete) {
1225                 /* Wake up a poll()ing console */
1226                 if (ast_opt_console && consolethread != AST_PTHREADT_NULL)
1227                         pthread_kill(consolethread, SIGURG);
1228         }
1229 }
1230
1231 static int ast_all_zeros(char *s)
1232 {
1233         while (*s) {
1234                 if (*s > 32)
1235                         return 0;
1236                 s++;  
1237         }
1238         return 1;
1239 }
1240
1241 static void consolehandler(char *s)
1242 {
1243         printf(term_end());
1244         fflush(stdout);
1245
1246         /* Called when readline data is available */
1247         if (!ast_all_zeros(s))
1248                 ast_el_add_history(s);
1249         /* The real handler for bang */
1250         if (s[0] == '!') {
1251                 if (s[1])
1252                         ast_safe_system(s+1);
1253                 else
1254                         ast_safe_system(getenv("SHELL") ? getenv("SHELL") : "/bin/sh");
1255         } else 
1256                 ast_cli_command(STDOUT_FILENO, s);
1257 }
1258
1259 static int remoteconsolehandler(char *s)
1260 {
1261         int ret = 0;
1262
1263         /* Called when readline data is available */
1264         if (!ast_all_zeros(s))
1265                 ast_el_add_history(s);
1266         /* The real handler for bang */
1267         if (s[0] == '!') {
1268                 if (s[1])
1269                         ast_safe_system(s+1);
1270                 else
1271                         ast_safe_system(getenv("SHELL") ? getenv("SHELL") : "/bin/sh");
1272                 ret = 1;
1273         }
1274         if ((strncasecmp(s, "quit", 4) == 0 || strncasecmp(s, "exit", 4) == 0) &&
1275             (s[4] == '\0' || isspace(s[4]))) {
1276                 quit_handler(0, 0, 0, 0);
1277                 ret = 1;
1278         }
1279
1280         return ret;
1281 }
1282
1283 static char abort_halt_help[] = 
1284 "Usage: abort shutdown\n"
1285 "       Causes Asterisk to abort an executing shutdown or restart, and resume normal\n"
1286 "       call operations.\n";
1287
1288 static char shutdown_now_help[] = 
1289 "Usage: stop now\n"
1290 "       Shuts down a running Asterisk immediately, hanging up all active calls .\n";
1291
1292 static char shutdown_gracefully_help[] = 
1293 "Usage: stop gracefully\n"
1294 "       Causes Asterisk to not accept new calls, and exit when all\n"
1295 "       active calls have terminated normally.\n";
1296
1297 static char shutdown_when_convenient_help[] = 
1298 "Usage: stop when convenient\n"
1299 "       Causes Asterisk to perform a shutdown when all active calls have ended.\n";
1300
1301 static char restart_now_help[] = 
1302 "Usage: restart now\n"
1303 "       Causes Asterisk to hangup all calls and exec() itself performing a cold\n"
1304 "       restart.\n";
1305
1306 static char restart_gracefully_help[] = 
1307 "Usage: restart gracefully\n"
1308 "       Causes Asterisk to stop accepting new calls and exec() itself performing a cold\n"
1309 "       restart when all active calls have ended.\n";
1310
1311 static char restart_when_convenient_help[] = 
1312 "Usage: restart when convenient\n"
1313 "       Causes Asterisk to perform a cold restart when all active calls have ended.\n";
1314
1315 static char bang_help[] =
1316 "Usage: !<command>\n"
1317 "       Executes a given shell command\n";
1318
1319 static char show_warranty_help[] =
1320 "Usage: show warranty\n"
1321 "       Shows the warranty (if any) for this copy of Asterisk.\n";
1322
1323 static char show_license_help[] =
1324 "Usage: show license\n"
1325 "       Shows the license(s) for this copy of Asterisk.\n";
1326
1327 static char version_help[] =
1328 "Usage: show version\n"
1329 "       Shows Asterisk version information.\n";
1330
1331 static int handle_version(int fd, int argc, char *argv[])
1332 {
1333         if (argc != 2)
1334                 return RESULT_SHOWUSAGE;
1335         ast_cli(fd, "Asterisk %s built by %s @ %s on a %s running %s on %s\n",
1336                 ASTERISK_VERSION, ast_build_user, ast_build_hostname,
1337                 ast_build_machine, ast_build_os, ast_build_date);
1338         return RESULT_SUCCESS;
1339 }
1340
1341 #if 0
1342 static int handle_quit(int fd, int argc, char *argv[])
1343 {
1344         if (argc != 1)
1345                 return RESULT_SHOWUSAGE;
1346         quit_handler(0, 0, 1, 0);
1347         return RESULT_SUCCESS;
1348 }
1349 #endif
1350
1351 static int handle_shutdown_now(int fd, int argc, char *argv[])
1352 {
1353         if (argc != 2)
1354                 return RESULT_SHOWUSAGE;
1355         quit_handler(0, 0 /* Not nice */, 1 /* safely */, 0 /* not restart */);
1356         return RESULT_SUCCESS;
1357 }
1358
1359 static int handle_shutdown_gracefully(int fd, int argc, char *argv[])
1360 {
1361         if (argc != 2)
1362                 return RESULT_SHOWUSAGE;
1363         quit_handler(0, 1 /* nicely */, 1 /* safely */, 0 /* no restart */);
1364         return RESULT_SUCCESS;
1365 }
1366
1367 static int handle_shutdown_when_convenient(int fd, int argc, char *argv[])
1368 {
1369         if (argc != 3)
1370                 return RESULT_SHOWUSAGE;
1371         ast_cli(fd, "Waiting for inactivity to perform halt\n");
1372         quit_handler(0, 2 /* really nicely */, 1 /* safely */, 0 /* don't restart */);
1373         return RESULT_SUCCESS;
1374 }
1375
1376 static int handle_restart_now(int fd, int argc, char *argv[])
1377 {
1378         if (argc != 2)
1379                 return RESULT_SHOWUSAGE;
1380         quit_handler(0, 0 /* not nicely */, 1 /* safely */, 1 /* restart */);
1381         return RESULT_SUCCESS;
1382 }
1383
1384 static int handle_restart_gracefully(int fd, int argc, char *argv[])
1385 {
1386         if (argc != 2)
1387                 return RESULT_SHOWUSAGE;
1388         quit_handler(0, 1 /* nicely */, 1 /* safely */, 1 /* restart */);
1389         return RESULT_SUCCESS;
1390 }
1391
1392 static int handle_restart_when_convenient(int fd, int argc, char *argv[])
1393 {
1394         if (argc != 3)
1395                 return RESULT_SHOWUSAGE;
1396         ast_cli(fd, "Waiting for inactivity to perform restart\n");
1397         quit_handler(0, 2 /* really nicely */, 1 /* safely */, 1 /* restart */);
1398         return RESULT_SUCCESS;
1399 }
1400
1401 static int handle_abort_halt(int fd, int argc, char *argv[])
1402 {
1403         if (argc != 2)
1404                 return RESULT_SHOWUSAGE;
1405         ast_cancel_shutdown();
1406         shuttingdown = 0;
1407         return RESULT_SUCCESS;
1408 }
1409
1410 static int handle_bang(int fd, int argc, char *argv[])
1411 {
1412         return RESULT_SUCCESS;
1413 }
1414 static const char *warranty_lines[] = {
1415         "\n",
1416         "                           NO WARRANTY\n",
1417         "\n",
1418         "BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\n",
1419         "FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN\n",
1420         "OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES\n",
1421         "PROVIDE THE PROGRAM \"AS IS\" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED\n",
1422         "OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\n",
1423         "MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS\n",
1424         "TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE\n",
1425         "PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,\n",
1426         "REPAIR OR CORRECTION.\n",
1427         "\n",
1428         "IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING\n",
1429         "WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR\n",
1430         "REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,\n",
1431         "INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING\n",
1432         "OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED\n",
1433         "TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY\n",
1434         "YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER\n",
1435         "PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE\n",
1436         "POSSIBILITY OF SUCH DAMAGES.\n",
1437 };
1438
1439 static int show_warranty(int fd, int argc, char *argv[])
1440 {
1441         int x;
1442
1443         for (x = 0; x < sizeof(warranty_lines) / sizeof(warranty_lines[0]); x++)
1444                 ast_cli(fd, (char *) warranty_lines[x]);
1445
1446         return RESULT_SUCCESS;
1447 }
1448
1449 static const char *license_lines[] = {
1450         "\n",
1451         "This program is free software; you can redistribute it and/or modify\n",
1452         "it under the terms of the GNU General Public License version 2 as\n",
1453         "published by the Free Software Foundation.\n",
1454         "\n",
1455         "This program also contains components licensed under other licenses.\n",
1456         "They include:\n",
1457         "\n",
1458         "This program is distributed in the hope that it will be useful,\n",
1459         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n",
1460         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n",
1461         "GNU General Public License for more details.\n",
1462         "\n",
1463         "You should have received a copy of the GNU General Public License\n",
1464         "along with this program; if not, write to the Free Software\n",
1465         "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\n",
1466 };
1467
1468 static int show_license(int fd, int argc, char *argv[])
1469 {
1470         int x;
1471
1472         for (x = 0; x < sizeof(license_lines) / sizeof(license_lines[0]); x++)
1473                 ast_cli(fd, (char *) license_lines[x]);
1474
1475         return RESULT_SUCCESS;
1476 }
1477
1478 #define ASTERISK_PROMPT "*CLI> "
1479
1480 #define ASTERISK_PROMPT2 "%s*CLI> "
1481
1482 static struct ast_cli_entry core_cli[] = {
1483         { { "abort", "halt", NULL }, handle_abort_halt,
1484           "Cancel a running halt", abort_halt_help },
1485         { { "stop", "now", NULL }, handle_shutdown_now,
1486           "Shut down Asterisk immediately", shutdown_now_help },
1487         { { "stop", "gracefully", NULL }, handle_shutdown_gracefully,
1488           "Gracefully shut down Asterisk", shutdown_gracefully_help },
1489         { { "stop", "when","convenient", NULL }, handle_shutdown_when_convenient,
1490           "Shut down Asterisk at empty call volume", shutdown_when_convenient_help },
1491         { { "restart", "now", NULL }, handle_restart_now,
1492           "Restart Asterisk immediately", restart_now_help },
1493         { { "restart", "gracefully", NULL }, handle_restart_gracefully,
1494           "Restart Asterisk gracefully", restart_gracefully_help },
1495         { { "restart", "when", "convenient", NULL }, handle_restart_when_convenient,
1496           "Restart Asterisk at empty call volume", restart_when_convenient_help },
1497         { { "show", "warranty", NULL }, show_warranty,
1498           "Show the warranty (if any) for this copy of Asterisk", show_warranty_help },
1499         { { "show", "license", NULL }, show_license,
1500           "Show the license(s) for this copy of Asterisk", show_license_help },
1501         { { "show", "version", NULL }, handle_version, 
1502           "Display version info", version_help },
1503         { { "!", NULL }, handle_bang,
1504           "Execute a shell command", bang_help },
1505 #if !defined(LOW_MEMORY)
1506         { { "show", "version", "files", NULL }, handle_show_version_files,
1507           "Show versions of files used to build Asterisk", show_version_files_help, complete_show_version_files },
1508         { { "show", "threads", NULL }, handle_show_threads,
1509           "Show running threads", show_threads_help, NULL },
1510         { { "show", "profile", NULL }, handle_show_profile,
1511           "Show profiling info"},
1512         { { "clear", "profile", NULL }, handle_show_profile,
1513           "Clear profiling info"},
1514 #endif /* ! LOW_MEMORY */
1515 };
1516
1517 static int ast_el_read_char(EditLine *el, char *cp)
1518 {
1519         int num_read = 0;
1520         int lastpos = 0;
1521         struct pollfd fds[2];
1522         int res;
1523         int max;
1524         char buf[512];
1525
1526         for (;;) {
1527                 max = 1;
1528                 fds[0].fd = ast_consock;
1529                 fds[0].events = POLLIN;
1530                 if (!ast_opt_exec) {
1531                         fds[1].fd = STDIN_FILENO;
1532                         fds[1].events = POLLIN;
1533                         max++;
1534                 }
1535                 res = poll(fds, max, -1);
1536                 if (res < 0) {
1537                         if (errno == EINTR)
1538                                 continue;
1539                         ast_log(LOG_ERROR, "poll failed: %s\n", strerror(errno));
1540                         break;
1541                 }
1542
1543                 if (!ast_opt_exec && fds[1].revents) {
1544                         num_read = read(STDIN_FILENO, cp, 1);
1545                         if (num_read < 1) {
1546                                 break;
1547                         } else 
1548                                 return (num_read);
1549                 }
1550                 if (fds[0].revents) {
1551                         res = read(ast_consock, buf, sizeof(buf) - 1);
1552                         /* if the remote side disappears exit */
1553                         if (res < 1) {
1554                                 fprintf(stderr, "\nDisconnected from Asterisk server\n");
1555                                 if (!ast_opt_reconnect) {
1556                                         quit_handler(0, 0, 0, 0);
1557                                 } else {
1558                                         int tries;
1559                                         int reconnects_per_second = 20;
1560                                         fprintf(stderr, "Attempting to reconnect for 30 seconds\n");
1561                                         for (tries=0; tries < 30 * reconnects_per_second; tries++) {
1562                                                 if (ast_tryconnect()) {
1563                                                         fprintf(stderr, "Reconnect succeeded after %.3f seconds\n", 1.0 / reconnects_per_second * tries);
1564                                                         printf(term_quit());
1565                                                         WELCOME_MESSAGE;
1566                                                         break;
1567                                                 } else {
1568                                                         usleep(1000000 / reconnects_per_second);
1569                                                 }
1570                                         }
1571                                         if (tries >= 30 * reconnects_per_second) {
1572                                                 fprintf(stderr, "Failed to reconnect for 30 seconds.  Quitting.\n");
1573                                                 quit_handler(0, 0, 0, 0);
1574                                         }
1575                                 }
1576                         }
1577
1578                         buf[res] = '\0';
1579
1580                         if (!ast_opt_exec && !lastpos)
1581                                 write(STDOUT_FILENO, "\r", 1);
1582                         write(STDOUT_FILENO, buf, res);
1583                         if ((buf[res-1] == '\n') || (buf[res-2] == '\n')) {
1584                                 *cp = CC_REFRESH;
1585                                 return(1);
1586                         } else {
1587                                 lastpos = 1;
1588                         }
1589                 }
1590         }
1591
1592         *cp = '\0';
1593         return (0);
1594 }
1595
1596 static char *cli_prompt(EditLine *el)
1597 {
1598         static char prompt[200];
1599         char *pfmt;
1600         int color_used = 0;
1601         char term_code[20];
1602
1603         if ((pfmt = getenv("ASTERISK_PROMPT"))) {
1604                 char *t = pfmt, *p = prompt;
1605                 memset(prompt, 0, sizeof(prompt));
1606                 while (*t != '\0' && *p < sizeof(prompt)) {
1607                         if (*t == '%') {
1608                                 char hostname[MAXHOSTNAMELEN]="";
1609                                 int i;
1610                                 time_t ts;
1611                                 struct tm tm;
1612 #ifdef linux
1613                                 FILE *LOADAVG;
1614 #endif
1615                                 int fgcolor = COLOR_WHITE, bgcolor = COLOR_BLACK;
1616
1617                                 t++;
1618                                 switch (*t) {
1619                                 case 'C': /* color */
1620                                         t++;
1621                                         if (sscanf(t, "%d;%d%n", &fgcolor, &bgcolor, &i) == 2) {
1622                                                 strncat(p, term_color_code(term_code, fgcolor, bgcolor, sizeof(term_code)),sizeof(prompt) - strlen(prompt) - 1);
1623                                                 t += i - 1;
1624                                         } else if (sscanf(t, "%d%n", &fgcolor, &i) == 1) {
1625                                                 strncat(p, term_color_code(term_code, fgcolor, 0, sizeof(term_code)),sizeof(prompt) - strlen(prompt) - 1);
1626                                                 t += i - 1;
1627                                         }
1628
1629                                         /* If the color has been reset correctly, then there's no need to reset it later */
1630                                         if ((fgcolor == COLOR_WHITE) && (bgcolor == COLOR_BLACK)) {
1631                                                 color_used = 0;
1632                                         } else {
1633                                                 color_used = 1;
1634                                         }
1635                                         break;
1636                                 case 'd': /* date */
1637                                         memset(&tm, 0, sizeof(tm));
1638                                         time(&ts);
1639                                         if (localtime_r(&ts, &tm)) {
1640                                                 strftime(p, sizeof(prompt) - strlen(prompt), "%Y-%m-%d", &tm);
1641                                         }
1642                                         break;
1643                                 case 'h': /* hostname */
1644                                         if (!gethostname(hostname, sizeof(hostname) - 1)) {
1645                                                 strncat(p, hostname, sizeof(prompt) - strlen(prompt) - 1);
1646                                         } else {
1647                                                 strncat(p, "localhost", sizeof(prompt) - strlen(prompt) - 1);
1648                                         }
1649                                         break;
1650                                 case 'H': /* short hostname */
1651                                         if (!gethostname(hostname, sizeof(hostname) - 1)) {
1652                                                 for (i = 0; i < sizeof(hostname); i++) {
1653                                                         if (hostname[i] == '.') {
1654                                                                 hostname[i] = '\0';
1655                                                                 break;
1656                                                         }
1657                                                 }
1658                                                 strncat(p, hostname, sizeof(prompt) - strlen(prompt) - 1);
1659                                         } else {
1660                                                 strncat(p, "localhost", sizeof(prompt) - strlen(prompt) - 1);
1661                                         }
1662                                         break;
1663 #ifdef linux
1664                                 case 'l': /* load avg */
1665                                         t++;
1666                                         if ((LOADAVG = fopen("/proc/loadavg", "r"))) {
1667                                                 float avg1, avg2, avg3;
1668                                                 int actproc, totproc, npid, which;
1669                                                 fscanf(LOADAVG, "%f %f %f %d/%d %d",
1670                                                         &avg1, &avg2, &avg3, &actproc, &totproc, &npid);
1671                                                 if (sscanf(t, "%d", &which) == 1) {
1672                                                         switch (which) {
1673                                                         case 1:
1674                                                                 snprintf(p, sizeof(prompt) - strlen(prompt), "%.2f", avg1);
1675                                                                 break;
1676                                                         case 2:
1677                                                                 snprintf(p, sizeof(prompt) - strlen(prompt), "%.2f", avg2);
1678                                                                 break;
1679                                                         case 3:
1680                                                                 snprintf(p, sizeof(prompt) - strlen(prompt), "%.2f", avg3);
1681                                                                 break;
1682                                                         case 4:
1683                                                                 snprintf(p, sizeof(prompt) - strlen(prompt), "%d/%d", actproc, totproc);
1684                                                                 break;
1685                                                         case 5:
1686                                                                 snprintf(p, sizeof(prompt) - strlen(prompt), "%d", npid);
1687                                                                 break;
1688                                                         }
1689                                                 }
1690                                         }
1691                                         break;
1692 #endif
1693                                 case 's': /* Asterisk system name (from asterisk.conf) */
1694                                         strncat(p, ast_config_AST_SYSTEM_NAME, sizeof(prompt) - strlen(prompt) - 1);
1695                                         break;
1696                                 case 't': /* time */
1697                                         memset(&tm, 0, sizeof(tm));
1698                                         time(&ts);
1699                                         if (localtime_r(&ts, &tm)) {
1700                                                 strftime(p, sizeof(prompt) - strlen(prompt), "%H:%M:%S", &tm);
1701                                         }
1702                                         break;
1703                                 case '#': /* process console or remote? */
1704                                         if (!ast_opt_remote) {
1705                                                 strncat(p, "#", sizeof(prompt) - strlen(prompt) - 1);
1706                                         } else {
1707                                                 strncat(p, ">", sizeof(prompt) - strlen(prompt) - 1);
1708                                         }
1709                                         break;
1710                                 case '%': /* literal % */
1711                                         strncat(p, "%", sizeof(prompt) - strlen(prompt) - 1);
1712                                         break;
1713                                 case '\0': /* % is last character - prevent bug */
1714                                         t--;
1715                                         break;
1716                                 }
1717                                 while (*p != '\0') {
1718                                         p++;
1719                                 }
1720                                 t++;
1721                         } else {
1722                                 *p = *t;
1723                                 p++;
1724                                 t++;
1725                         }
1726                 }
1727                 if (color_used) {
1728                         /* Force colors back to normal at end */
1729                         term_color_code(term_code, COLOR_WHITE, COLOR_BLACK, sizeof(term_code));
1730                         if (strlen(term_code) > sizeof(prompt) - strlen(prompt)) {
1731                                 strncat(prompt + sizeof(prompt) - strlen(term_code) - 1, term_code, strlen(term_code));
1732                         } else {
1733                                 strncat(p, term_code, sizeof(term_code));
1734                         }
1735                 }
1736         } else if (remotehostname)
1737                 snprintf(prompt, sizeof(prompt), ASTERISK_PROMPT2, remotehostname);
1738         else
1739                 snprintf(prompt, sizeof(prompt), ASTERISK_PROMPT);
1740
1741         return(prompt); 
1742 }
1743
1744 static char **ast_el_strtoarr(char *buf)
1745 {
1746         char **match_list = NULL, *retstr;
1747         size_t match_list_len;
1748         int matches = 0;
1749
1750         match_list_len = 1;
1751         while ( (retstr = strsep(&buf, " ")) != NULL) {
1752
1753                 if (!strcmp(retstr, AST_CLI_COMPLETE_EOF))
1754                         break;
1755                 if (matches + 1 >= match_list_len) {
1756                         match_list_len <<= 1;
1757                         if (!(match_list = ast_realloc(match_list, match_list_len * sizeof(char *)))) {
1758                                 /* TODO: Handle memory allocation failure */
1759                         }
1760                 }
1761
1762                 match_list[matches++] = strdup(retstr);
1763         }
1764
1765         if (!match_list)
1766                 return (char **) NULL;
1767
1768         if (matches >= match_list_len) {
1769                 if (!(match_list = ast_realloc(match_list, (match_list_len + 1) * sizeof(char *)))) {
1770                         /* TODO: Handle memory allocation failure */
1771                 }
1772         }
1773
1774         match_list[matches] = (char *) NULL;
1775
1776         return match_list;
1777 }
1778
1779 static int ast_el_sort_compare(const void *i1, const void *i2)
1780 {
1781         char *s1, *s2;
1782
1783         s1 = ((char **)i1)[0];
1784         s2 = ((char **)i2)[0];
1785
1786         return strcasecmp(s1, s2);
1787 }
1788
1789 static int ast_cli_display_match_list(char **matches, int len, int max)
1790 {
1791         int i, idx, limit, count;
1792         int screenwidth = 0;
1793         int numoutput = 0, numoutputline = 0;
1794
1795         screenwidth = ast_get_termcols(STDOUT_FILENO);
1796
1797         /* find out how many entries can be put on one line, with two spaces between strings */
1798         limit = screenwidth / (max + 2);
1799         if (limit == 0)
1800                 limit = 1;
1801
1802         /* how many lines of output */
1803         count = len / limit;
1804         if (count * limit < len)
1805                 count++;
1806
1807         idx = 1;
1808
1809         qsort(&matches[0], (size_t)(len), sizeof(char *), ast_el_sort_compare);
1810
1811         for (; count > 0; count--) {
1812                 numoutputline = 0;
1813                 for (i=0; i < limit && matches[idx]; i++, idx++) {
1814
1815                         /* Don't print dupes */
1816                         if ( (matches[idx+1] != NULL && strcmp(matches[idx], matches[idx+1]) == 0 ) ) {
1817                                 i--;
1818                                 free(matches[idx]);
1819                                 matches[idx] = NULL;
1820                                 continue;
1821                         }
1822
1823                         numoutput++;
1824                         numoutputline++;
1825                         fprintf(stdout, "%-*s  ", max, matches[idx]);
1826                         free(matches[idx]);
1827                         matches[idx] = NULL;
1828                 }
1829                 if (numoutputline > 0)
1830                         fprintf(stdout, "\n");
1831         }
1832
1833         return numoutput;
1834 }
1835
1836
1837 static char *cli_complete(EditLine *el, int ch)
1838 {
1839         int len = 0;
1840         char *ptr;
1841         int nummatches = 0;
1842         char **matches;
1843         int retval = CC_ERROR;
1844         char buf[2048];
1845         int res;
1846
1847         LineInfo *lf = (LineInfo *)el_line(el);
1848
1849         *(char *)lf->cursor = '\0';
1850         ptr = (char *)lf->cursor;
1851         if (ptr) {
1852                 while (ptr > lf->buffer) {
1853                         if (isspace(*ptr)) {
1854                                 ptr++;
1855                                 break;
1856                         }
1857                         ptr--;
1858                 }
1859         }
1860
1861         len = lf->cursor - ptr;
1862
1863         if (ast_opt_remote) {
1864                 snprintf(buf, sizeof(buf),"_COMMAND NUMMATCHES \"%s\" \"%s\"", lf->buffer, ptr); 
1865                 fdprint(ast_consock, buf);
1866                 res = read(ast_consock, buf, sizeof(buf));
1867                 buf[res] = '\0';
1868                 nummatches = atoi(buf);
1869
1870                 if (nummatches > 0) {
1871                         char *mbuf;
1872                         int mlen = 0, maxmbuf = 2048;
1873                         /* Start with a 2048 byte buffer */                     
1874                         if (!(mbuf = ast_malloc(maxmbuf)))
1875                                 return (char *)(CC_ERROR);
1876                         snprintf(buf, sizeof(buf),"_COMMAND MATCHESARRAY \"%s\" \"%s\"", lf->buffer, ptr); 
1877                         fdprint(ast_consock, buf);
1878                         res = 0;
1879                         mbuf[0] = '\0';
1880                         while (!strstr(mbuf, AST_CLI_COMPLETE_EOF) && res != -1) {
1881                                 if (mlen + 1024 > maxmbuf) {
1882                                         /* Every step increment buffer 1024 bytes */
1883                                         maxmbuf += 1024;                                        
1884                                         if (!(mbuf = ast_realloc(mbuf, maxmbuf)))
1885                                                 return (char *)(CC_ERROR);
1886                                 }
1887                                 /* Only read 1024 bytes at a time */
1888                                 res = read(ast_consock, mbuf + mlen, 1024);
1889                                 if (res > 0)
1890                                         mlen += res;
1891                         }
1892                         mbuf[mlen] = '\0';
1893
1894                         matches = ast_el_strtoarr(mbuf);
1895                         free(mbuf);
1896                 } else
1897                         matches = (char **) NULL;
1898         } else {
1899                 char **p, *oldbuf=NULL;
1900                 nummatches = 0;
1901                 matches = ast_cli_completion_matches((char *)lf->buffer,ptr);
1902                 for (p = matches; p && *p; p++) {
1903                         if (!oldbuf || strcmp(*p,oldbuf))
1904                                 nummatches++;
1905                         oldbuf = *p;
1906                 }
1907         }
1908
1909         if (matches) {
1910                 int i;
1911                 int matches_num, maxlen, match_len;
1912
1913                 if (matches[0][0] != '\0') {
1914                         el_deletestr(el, (int) len);
1915                         el_insertstr(el, matches[0]);
1916                         retval = CC_REFRESH;
1917                 }
1918
1919                 if (nummatches == 1) {
1920                         /* Found an exact match */
1921                         el_insertstr(el, " ");
1922                         retval = CC_REFRESH;
1923                 } else {
1924                         /* Must be more than one match */
1925                         for (i=1, maxlen=0; matches[i]; i++) {
1926                                 match_len = strlen(matches[i]);
1927                                 if (match_len > maxlen)
1928                                         maxlen = match_len;
1929                         }
1930                         matches_num = i - 1;
1931                         if (matches_num >1) {
1932                                 fprintf(stdout, "\n");
1933                                 ast_cli_display_match_list(matches, nummatches, maxlen);
1934                                 retval = CC_REDISPLAY;
1935                         } else { 
1936                                 el_insertstr(el," ");
1937                                 retval = CC_REFRESH;
1938                         }
1939                 }
1940                 free(matches);
1941         }
1942
1943         return (char *)(long)retval;
1944 }
1945
1946 static int ast_el_initialize(void)
1947 {
1948         HistEvent ev;
1949         char *editor = getenv("AST_EDITOR");
1950
1951         if (el != NULL)
1952                 el_end(el);
1953         if (el_hist != NULL)
1954                 history_end(el_hist);
1955
1956         el = el_init("asterisk", stdin, stdout, stderr);
1957         el_set(el, EL_PROMPT, cli_prompt);
1958
1959         el_set(el, EL_EDITMODE, 1);             
1960         el_set(el, EL_EDITOR, editor ? editor : "emacs");               
1961         el_hist = history_init();
1962         if (!el || !el_hist)
1963                 return -1;
1964
1965         /* setup history with 100 entries */
1966         history(el_hist, &ev, H_SETSIZE, 100);
1967
1968         el_set(el, EL_HIST, history, el_hist);
1969
1970         el_set(el, EL_ADDFN, "ed-complete", "Complete argument", cli_complete);
1971         /* Bind <tab> to command completion */
1972         el_set(el, EL_BIND, "^I", "ed-complete", NULL);
1973         /* Bind ? to command completion */
1974         el_set(el, EL_BIND, "?", "ed-complete", NULL);
1975         /* Bind ^D to redisplay */
1976         el_set(el, EL_BIND, "^D", "ed-redisplay", NULL);
1977
1978         return 0;
1979 }
1980
1981 static int ast_el_add_history(char *buf)
1982 {
1983         HistEvent ev;
1984
1985         if (el_hist == NULL || el == NULL)
1986                 ast_el_initialize();
1987         if (strlen(buf) > 256)
1988                 return 0;
1989         return (history(el_hist, &ev, H_ENTER, buf));
1990 }
1991
1992 static int ast_el_write_history(char *filename)
1993 {
1994         HistEvent ev;
1995
1996         if (el_hist == NULL || el == NULL)
1997                 ast_el_initialize();
1998
1999         return (history(el_hist, &ev, H_SAVE, filename));
2000 }
2001
2002 static int ast_el_read_history(char *filename)
2003 {
2004         char buf[256];
2005         FILE *f;
2006         int ret = -1;
2007
2008         if (el_hist == NULL || el == NULL)
2009                 ast_el_initialize();
2010
2011         if ((f = fopen(filename, "r")) == NULL)
2012                 return ret;
2013
2014         while (!feof(f)) {
2015                 fgets(buf, sizeof(buf), f);
2016                 if (!strcmp(buf, "_HiStOrY_V2_\n"))
2017                         continue;
2018                 if (ast_all_zeros(buf))
2019                         continue;
2020                 if ((ret = ast_el_add_history(buf)) == -1)
2021                         break;
2022         }
2023         fclose(f);
2024
2025         return ret;
2026 }
2027
2028 static void ast_remotecontrol(char * data)
2029 {
2030         char buf[80];
2031         int res;
2032         char filename[80] = "";
2033         char *hostname;
2034         char *cpid;
2035         char *version;
2036         int pid;
2037         char tmp[80];
2038         char *stringp = NULL;
2039
2040         char *ebuf;
2041         int num = 0;
2042
2043         read(ast_consock, buf, sizeof(buf));
2044         if (data)
2045                 write(ast_consock, data, strlen(data) + 1);
2046         stringp = buf;
2047         hostname = strsep(&stringp, "/");
2048         cpid = strsep(&stringp, "/");
2049         version = strsep(&stringp, "\n");
2050         if (!version)
2051                 version = "<Version Unknown>";
2052         stringp = hostname;
2053         strsep(&stringp, ".");
2054         if (cpid)
2055                 pid = atoi(cpid);
2056         else
2057                 pid = -1;
2058         snprintf(tmp, sizeof(tmp), "set verbose atleast %d", option_verbose);
2059         fdprint(ast_consock, tmp);
2060         snprintf(tmp, sizeof(tmp), "set debug atleast %d", option_debug);
2061         fdprint(ast_consock, tmp);
2062         if (ast_opt_mute) {
2063                 snprintf(tmp, sizeof(tmp), "log and verbose output currently muted ('logger unmute' to unmute)");
2064                 fdprint(ast_consock, tmp);
2065         }
2066         ast_verbose("Connected to Asterisk %s currently running on %s (pid = %d)\n", version, hostname, pid);
2067         remotehostname = hostname;
2068         if (getenv("HOME")) 
2069                 snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
2070         if (el_hist == NULL || el == NULL)
2071                 ast_el_initialize();
2072
2073         el_set(el, EL_GETCFN, ast_el_read_char);
2074
2075         if (!ast_strlen_zero(filename))
2076                 ast_el_read_history(filename);
2077
2078         if (ast_opt_exec && data) {  /* hack to print output then exit if asterisk -rx is used */
2079                 char tempchar;
2080                 struct pollfd fds;
2081                 fds.fd = ast_consock;
2082                 fds.events = POLLIN;
2083                 fds.revents = 0;
2084                 while (poll(&fds, 1, 100) > 0)
2085                         ast_el_read_char(el, &tempchar);
2086                 return;
2087         }
2088         for (;;) {
2089                 ebuf = (char *)el_gets(el, &num);
2090
2091                 if (!ast_strlen_zero(ebuf)) {
2092                         if (ebuf[strlen(ebuf)-1] == '\n')
2093                                 ebuf[strlen(ebuf)-1] = '\0';
2094                         if (!remoteconsolehandler(ebuf)) {
2095                                 res = write(ast_consock, ebuf, strlen(ebuf) + 1);
2096                                 if (res < 1) {
2097                                         ast_log(LOG_WARNING, "Unable to write: %s\n", strerror(errno));
2098                                         break;
2099                                 }
2100                         }
2101                 }
2102         }
2103         printf("\nDisconnected from Asterisk server\n");
2104 }
2105
2106 static int show_version(void)
2107 {
2108         printf("Asterisk " ASTERISK_VERSION "\n");
2109         return 0;
2110 }
2111
2112 static int show_cli_help(void) {
2113         printf("Asterisk " ASTERISK_VERSION ", Copyright (C) 1999 - 2006, Digium, Inc. and others.\n");
2114         printf("Usage: asterisk [OPTIONS]\n");
2115         printf("Valid Options:\n");
2116         printf("   -V              Display version number and exit\n");
2117         printf("   -C <configfile> Use an alternate configuration file\n");
2118         printf("   -G <group>      Run as a group other than the caller\n");
2119         printf("   -U <user>       Run as a user other than the caller\n");
2120         printf("   -c              Provide console CLI\n");
2121         printf("   -d              Enable extra debugging\n");
2122         printf("   -f              Do not fork\n");
2123         printf("   -g              Dump core in case of a crash\n");
2124         printf("   -h              This help screen\n");
2125         printf("   -i              Initialize crypto keys at startup\n");
2126         printf("   -I              Enable internal timing if Zaptel timer is available\n");
2127         printf("   -L <load>       Limit the maximum load average before rejecting new calls\n");
2128         printf("   -M <value>      Limit the maximum number of calls to the specified value\n");
2129         printf("   -m              Mute the console from debugging and verbose output\n");
2130         printf("   -n              Disable console colorization\n");
2131         printf("   -p              Run as pseudo-realtime thread\n");
2132         printf("   -q              Quiet mode (suppress output)\n");
2133         printf("   -r              Connect to Asterisk on this machine\n");
2134         printf("   -R              Connect to Asterisk, and attempt to reconnect if disconnected\n");
2135         printf("   -t              Record soundfiles in /var/tmp and move them where they belong after they are done.\n");
2136         printf("   -T              Display the time in [Mmm dd hh:mm:ss] format for each line of output to the CLI.\n");
2137         printf("   -v              Increase verbosity (multiple v's = more verbose)\n");
2138         printf("   -x <cmd>        Execute command <cmd> (only valid with -r)\n");
2139         printf("\n");
2140         return 0;
2141 }
2142
2143 static void ast_readconfig(void) 
2144 {
2145         struct ast_config *cfg;
2146         struct ast_variable *v;
2147         char *config = AST_CONFIG_FILE;
2148
2149         if (ast_opt_override_config) {
2150                 cfg = ast_config_load(ast_config_AST_CONFIG_FILE);
2151                 if (!cfg)
2152                         ast_log(LOG_WARNING, "Unable to open specified master config file '%s', using built-in defaults\n", ast_config_AST_CONFIG_FILE);
2153         } else {
2154                 cfg = ast_config_load(config);
2155         }
2156
2157         /* init with buildtime config */
2158         ast_copy_string(ast_config_AST_CONFIG_DIR, AST_CONFIG_DIR, sizeof(ast_config_AST_CONFIG_DIR));
2159         ast_copy_string(ast_config_AST_SPOOL_DIR, AST_SPOOL_DIR, sizeof(ast_config_AST_SPOOL_DIR));
2160         ast_copy_string(ast_config_AST_MODULE_DIR, AST_MODULE_DIR, sizeof(ast_config_AST_MODULE_DIR));
2161         snprintf(ast_config_AST_MONITOR_DIR, sizeof(ast_config_AST_MONITOR_DIR) - 1, "%s/monitor", ast_config_AST_SPOOL_DIR);
2162         ast_copy_string(ast_config_AST_VAR_DIR, AST_VAR_DIR, sizeof(ast_config_AST_VAR_DIR));
2163         ast_copy_string(ast_config_AST_DATA_DIR, AST_DATA_DIR, sizeof(ast_config_AST_DATA_DIR));
2164         ast_copy_string(ast_config_AST_LOG_DIR, AST_LOG_DIR, sizeof(ast_config_AST_LOG_DIR));
2165         ast_copy_string(ast_config_AST_AGI_DIR, AST_AGI_DIR, sizeof(ast_config_AST_AGI_DIR));
2166         ast_copy_string(ast_config_AST_DB, AST_DB, sizeof(ast_config_AST_DB));
2167         ast_copy_string(ast_config_AST_KEY_DIR, AST_KEY_DIR, sizeof(ast_config_AST_KEY_DIR));
2168         ast_copy_string(ast_config_AST_PID, AST_PID, sizeof(ast_config_AST_PID));
2169         ast_copy_string(ast_config_AST_SOCKET, AST_SOCKET, sizeof(ast_config_AST_SOCKET));
2170         ast_copy_string(ast_config_AST_RUN_DIR, AST_RUN_DIR, sizeof(ast_config_AST_RUN_DIR));
2171
2172         /* no asterisk.conf? no problem, use buildtime config! */
2173         if (!cfg) {
2174                 return;
2175         }
2176
2177         for (v = ast_variable_browse(cfg, "files"); v; v = v->next) {
2178                 if (!strcasecmp(v->name, "astctlpermissions")) {
2179                         ast_copy_string(ast_config_AST_CTL_PERMISSIONS, v->value, sizeof(ast_config_AST_CTL_PERMISSIONS));
2180                 } else if (!strcasecmp(v->name, "astctlowner")) {
2181                         ast_copy_string(ast_config_AST_CTL_OWNER, v->value, sizeof(ast_config_AST_CTL_OWNER));
2182                 } else if (!strcasecmp(v->name, "astctlgroup")) {
2183                         ast_copy_string(ast_config_AST_CTL_GROUP, v->value, sizeof(ast_config_AST_CTL_GROUP));
2184                 } else if (!strcasecmp(v->name, "astctl")) {
2185                         ast_copy_string(ast_config_AST_CTL, v->value, sizeof(ast_config_AST_CTL));
2186                 }
2187         }
2188
2189         for (v = ast_variable_browse(cfg, "directories"); v; v = v->next) {
2190                 if (!strcasecmp(v->name, "astetcdir")) {
2191                         ast_copy_string(ast_config_AST_CONFIG_DIR, v->value, sizeof(ast_config_AST_CONFIG_DIR));
2192                 } else if (!strcasecmp(v->name, "astspooldir")) {
2193                         ast_copy_string(ast_config_AST_SPOOL_DIR, v->value, sizeof(ast_config_AST_SPOOL_DIR));
2194                         snprintf(ast_config_AST_MONITOR_DIR, sizeof(ast_config_AST_MONITOR_DIR) - 1, "%s/monitor", v->value);
2195                 } else if (!strcasecmp(v->name, "astvarlibdir")) {
2196                         ast_copy_string(ast_config_AST_VAR_DIR, v->value, sizeof(ast_config_AST_VAR_DIR));
2197                         snprintf(ast_config_AST_DB, sizeof(ast_config_AST_DB), "%s/astdb", v->value);
2198                 } else if (!strcasecmp(v->name, "astdatadir")) {
2199                         ast_copy_string(ast_config_AST_DATA_DIR, v->value, sizeof(ast_config_AST_DATA_DIR));
2200                         snprintf(ast_config_AST_KEY_DIR, sizeof(ast_config_AST_KEY_DIR), "%s/keys", v->value);
2201                 } else if (!strcasecmp(v->name, "astlogdir")) {
2202                         ast_copy_string(ast_config_AST_LOG_DIR, v->value, sizeof(ast_config_AST_LOG_DIR));
2203                 } else if (!strcasecmp(v->name, "astagidir")) {
2204                         ast_copy_string(ast_config_AST_AGI_DIR, v->value, sizeof(ast_config_AST_AGI_DIR));
2205                 } else if (!strcasecmp(v->name, "astrundir")) {
2206                         snprintf(ast_config_AST_PID, sizeof(ast_config_AST_PID), "%s/%s", v->value, "asterisk.pid");
2207                         snprintf(ast_config_AST_SOCKET, sizeof(ast_config_AST_SOCKET), "%s/%s", v->value, ast_config_AST_CTL);
2208                         ast_copy_string(ast_config_AST_RUN_DIR, v->value, sizeof(ast_config_AST_RUN_DIR));
2209                 } else if (!strcasecmp(v->name, "astmoddir")) {
2210                         ast_copy_string(ast_config_AST_MODULE_DIR, v->value, sizeof(ast_config_AST_MODULE_DIR));
2211                 }
2212         }
2213
2214         for (v = ast_variable_browse(cfg, "options"); v; v = v->next) {
2215                 /* verbose level (-v at startup) */
2216                 if (!strcasecmp(v->name, "verbose")) {
2217                         option_verbose = atoi(v->value);
2218                 /* whether or not to force timestamping. (-T at startup) */
2219                 } else if (!strcasecmp(v->name, "timestamp")) {
2220                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TIMESTAMP);
2221                 /* whether or not to support #exec in config files */
2222                 } else if (!strcasecmp(v->name, "execincludes")) {
2223                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_EXEC_INCLUDES);
2224                 /* debug level (-d at startup) */
2225                 } else if (!strcasecmp(v->name, "debug")) {
2226                         option_debug = 0;
2227                         if (sscanf(v->value, "%d", &option_debug) != 1) {
2228                                 option_debug = ast_true(v->value);
2229                         }
2230                 /* Disable forking (-f at startup) */
2231                 } else if (!strcasecmp(v->name, "nofork")) {
2232                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_NO_FORK);
2233                 /* Always fork, even if verbose or debug are enabled (-F at startup) */
2234                 } else if (!strcasecmp(v->name, "alwaysfork")) {
2235                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_ALWAYS_FORK);
2236                 /* Run quietly (-q at startup ) */
2237                 } else if (!strcasecmp(v->name, "quiet")) {
2238                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_QUIET);
2239                 /* Run as console (-c at startup, implies nofork) */
2240                 } else if (!strcasecmp(v->name, "console")) {
2241                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_CONSOLE);
2242                 /* Run with high priority if the O/S permits (-p at startup) */
2243                 } else if (!strcasecmp(v->name, "highpriority")) {
2244                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_HIGH_PRIORITY);
2245                 /* Initialize RSA auth keys (IAX2) (-i at startup) */
2246                 } else if (!strcasecmp(v->name, "initcrypto")) {
2247                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_INIT_KEYS);
2248                 /* Disable ANSI colors for console (-c at startup) */
2249                 } else if (!strcasecmp(v->name, "nocolor")) {
2250                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_NO_COLOR);
2251                 /* Disable some usage warnings for picky people :p */
2252                 } else if (!strcasecmp(v->name, "dontwarn")) {
2253                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_DONT_WARN);
2254                 /* Dump core in case of crash (-g) */
2255                 } else if (!strcasecmp(v->name, "dumpcore")) {
2256                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_DUMP_CORE);
2257                 /* Cache recorded sound files to another directory during recording */
2258                 } else if (!strcasecmp(v->name, "cache_record_files")) {
2259                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_CACHE_RECORD_FILES);
2260                 /* Specify cache directory */
2261                 }  else if (!strcasecmp(v->name, "record_cache_dir")) {
2262                         ast_copy_string(record_cache_dir, v->value, AST_CACHE_DIR_LEN);
2263                 /* Build transcode paths via SLINEAR, instead of directly */
2264                 } else if (!strcasecmp(v->name, "transcode_via_sln")) {
2265                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSCODE_VIA_SLIN);
2266                 /* Transmit SLINEAR silence while a channel is being recorded */
2267                 } else if (!strcasecmp(v->name, "transmit_silence_during_record")) {
2268                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSMIT_SILENCE);
2269                 /* Enable internal timing */
2270                 } else if (!strcasecmp(v->name, "internal_timing")) {
2271                         ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_INTERNAL_TIMING);
2272                 } else if (!strcasecmp(v->name, "maxcalls")) {
2273                         if ((sscanf(v->value, "%d", &option_maxcalls) != 1) || (option_maxcalls < 0)) {
2274                                 option_maxcalls = 0;
2275                         }
2276                 } else if (!strcasecmp(v->name, "maxload")) {
2277                         double test[1];
2278
2279                         if (getloadavg(test, 1) == -1) {
2280                                 ast_log(LOG_ERROR, "Cannot obtain load average on this system. 'maxload' option disabled.\n");
2281                                 option_maxload = 0.0;
2282                         } else if ((sscanf(v->value, "%lf", &option_maxload) != 1) || (option_maxload < 0.0)) {
2283                                 option_maxload = 0.0;
2284                         }
2285                 /* What user to run as */
2286                 } else if (!strcasecmp(v->name, "runuser")) {
2287                         ast_copy_string(ast_config_AST_RUN_USER, v->value, sizeof(ast_config_AST_RUN_USER));
2288                 /* What group to run as */
2289                 } else if (!strcasecmp(v->name, "rungroup")) {
2290                         ast_copy_string(ast_config_AST_RUN_GROUP, v->value, sizeof(ast_config_AST_RUN_GROUP));
2291                 } else if (!strcasecmp(v->name, "systemname")) {
2292                         ast_copy_string(ast_config_AST_SYSTEM_NAME, v->value, sizeof(ast_config_AST_SYSTEM_NAME));
2293                 } else if (!strcasecmp(v->name, "languageprefix")) {
2294                         ast_language_is_prefix = ast_true(v->value);
2295                 }
2296         }
2297         ast_config_destroy(cfg);
2298 }
2299
2300 int main(int argc, char *argv[])
2301 {
2302         int c;
2303         char filename[80] = "";
2304         char hostname[MAXHOSTNAMELEN] = "";
2305         char tmp[80];
2306         char * xarg = NULL;
2307         int x;
2308         FILE *f;
2309         sigset_t sigs;
2310         int num;
2311         int is_child_of_nonroot = 0;
2312         char *buf;
2313         char *runuser = NULL, *rungroup = NULL;
2314
2315         /* Remember original args for restart */
2316         if (argc > sizeof(_argv) / sizeof(_argv[0]) - 1) {
2317                 fprintf(stderr, "Truncating argument size to %d\n", (int)(sizeof(_argv) / sizeof(_argv[0])) - 1);
2318                 argc = sizeof(_argv) / sizeof(_argv[0]) - 1;
2319         }
2320         for (x=0; x<argc; x++)
2321                 _argv[x] = argv[x];
2322         _argv[x] = NULL;
2323
2324         /* if the progname is rasterisk consider it a remote console */
2325         if (argv[0] && (strstr(argv[0], "rasterisk")) != NULL) {
2326                 ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK | AST_OPT_FLAG_REMOTE);
2327         }
2328         if (gethostname(hostname, sizeof(hostname)-1))
2329                 ast_copy_string(hostname, "<Unknown>", sizeof(hostname));
2330         ast_mainpid = getpid();
2331         ast_ulaw_init();
2332         ast_alaw_init();
2333         callerid_init();
2334         ast_builtins_init();
2335         ast_utils_init();
2336         tdd_init();
2337         /* When Asterisk restarts after it has dropped the root privileges,
2338          * it can't issue setuid(), setgid(), setgroups() or set_priority() 
2339          */
2340         if (getenv("ASTERISK_ALREADY_NONROOT"))
2341                 is_child_of_nonroot=1;
2342         if (getenv("HOME")) 
2343                 snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
2344         /* Check for options */
2345         while ((c = getopt(argc, argv, "mtThfdvVqprRgciInx:U:G:C:L:M:")) != -1) {
2346                 switch (c) {
2347                 case 'F':
2348                         ast_set_flag(&ast_options, AST_OPT_FLAG_ALWAYS_FORK);
2349                         break;
2350                 case 'd':
2351                         option_debug++;
2352                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK);
2353                         break;
2354                 case 'c':
2355                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK | AST_OPT_FLAG_CONSOLE);
2356                         break;
2357                 case 'f':
2358                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK);
2359                         break;
2360                 case 'n':
2361                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_COLOR);
2362                         break;
2363                 case 'r':
2364                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK | AST_OPT_FLAG_REMOTE);
2365                         break;
2366                 case 'R':
2367                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK | AST_OPT_FLAG_REMOTE | AST_OPT_FLAG_RECONNECT);
2368                         break;
2369                 case 'p':
2370                         ast_set_flag(&ast_options, AST_OPT_FLAG_HIGH_PRIORITY);
2371                         break;
2372                 case 'v':
2373                         option_verbose++;
2374                         ast_set_flag(&ast_options, AST_OPT_FLAG_NO_FORK);
2375                         break;
2376                 case 'm':
2377                         ast_set_flag(&ast_options, AST_OPT_FLAG_MUTE);
2378                         break;
2379                 case 'M':
2380                         if ((sscanf(optarg, "%d", &option_maxcalls) != 1) || (option_maxcalls < 0))
2381                                 option_maxcalls = 0;
2382                         break;
2383                 case 'L':
2384                         if ((sscanf(optarg, "%lf", &option_maxload) != 1) || (option_maxload < 0.0))
2385                                 option_maxload = 0.0;
2386                         break;
2387                 case 'q':
2388                         ast_set_flag(&ast_options, AST_OPT_FLAG_QUIET);
2389                         break;
2390                 case 't':
2391                         ast_set_flag(&ast_options, AST_OPT_FLAG_CACHE_RECORD_FILES);
2392                         break;
2393                 case 'T':
2394                         ast_set_flag(&ast_options, AST_OPT_FLAG_TIMESTAMP);
2395                         break;
2396                 case 'x':
2397                         ast_set_flag(&ast_options, AST_OPT_FLAG_EXEC);
2398                         xarg = optarg;
2399                         break;
2400                 case 'C':
2401                         ast_copy_string(ast_config_AST_CONFIG_FILE, optarg, sizeof(ast_config_AST_CONFIG_FILE));
2402                         ast_set_flag(&ast_options, AST_OPT_FLAG_OVERRIDE_CONFIG);
2403                         break;
2404                 case 'I':
2405                         ast_set_flag(&ast_options, AST_OPT_FLAG_INTERNAL_TIMING);
2406                         break;
2407                 case 'i':
2408                         ast_set_flag(&ast_options, AST_OPT_FLAG_INIT_KEYS);
2409                         break;
2410                 case 'g':
2411                         ast_set_flag(&ast_options, AST_OPT_FLAG_DUMP_CORE);
2412                         break;
2413                 case 'h':
2414                         show_cli_help();
2415                         exit(0);
2416                 case 'V':
2417                         show_version();
2418                         exit(0);
2419                 case 'U':
2420                         runuser = optarg;
2421                         break;
2422                 case 'G':
2423                         rungroup = optarg;
2424                         break;
2425                 case '?':
2426                         exit(1);
2427                 }
2428         }
2429
2430         if (ast_opt_always_fork && (ast_opt_remote || ast_opt_console)) {
2431                 ast_log(LOG_WARNING, "'alwaysfork' is not compatible with console or remote console mode; ignored\n");
2432                 ast_clear_flag(&ast_options, AST_OPT_FLAG_ALWAYS_FORK);
2433         }
2434
2435         /* For remote connections, change the name of the remote connection.
2436          * We do this for the benefit of init scripts (which need to know if/when
2437          * the main asterisk process has died yet). */
2438         if (ast_opt_remote) {
2439                 strcpy(argv[0], "rasterisk");
2440                 for (x = 1; x < argc; x++) {
2441                         argv[x] = argv[0] + 10;
2442                 }
2443         }
2444
2445         if (ast_opt_console && !option_verbose) 
2446                 ast_verbose("[ Reading Master Configuration ]");
2447         ast_readconfig();
2448
2449         if (ast_opt_dump_core) {
2450                 struct rlimit l;
2451                 memset(&l, 0, sizeof(l));
2452                 l.rlim_cur = RLIM_INFINITY;
2453                 l.rlim_max = RLIM_INFINITY;
2454                 if (setrlimit(RLIMIT_CORE, &l)) {
2455                         ast_log(LOG_WARNING, "Unable to disable core size resource limit: %s\n", strerror(errno));
2456                 }
2457         }
2458
2459         if ((!rungroup) && !ast_strlen_zero(ast_config_AST_RUN_GROUP))
2460                 rungroup = ast_config_AST_RUN_GROUP;
2461         if ((!runuser) && !ast_strlen_zero(ast_config_AST_RUN_USER))
2462                 runuser = ast_config_AST_RUN_USER;
2463
2464 #ifndef __CYGWIN__
2465
2466         if (!is_child_of_nonroot) 
2467                 ast_set_priority(ast_opt_high_priority);
2468
2469         if (!is_child_of_nonroot && rungroup) {
2470                 struct group *gr;
2471                 gr = getgrnam(rungroup);
2472                 if (!gr) {
2473                         ast_log(LOG_WARNING, "No such group '%s'!\n", rungroup);
2474                         exit(1);
2475                 }
2476                 if (setgid(gr->gr_gid)) {
2477                         ast_log(LOG_WARNING, "Unable to setgid to %d (%s)\n", (int)gr->gr_gid, rungroup);
2478                         exit(1);
2479                 }
2480                 if (setgroups(0, NULL)) {
2481                         ast_log(LOG_WARNING, "Unable to drop unneeded groups\n");
2482                         exit(1);
2483                 }
2484                 if (option_verbose)
2485                         ast_verbose("Running as group '%s'\n", rungroup);
2486         }
2487
2488         if (!is_child_of_nonroot && runuser) {
2489                 struct passwd *pw;
2490                 pw = getpwnam(runuser);
2491                 if (!pw) {
2492                         ast_log(LOG_WARNING, "No such user '%s'!\n", runuser);
2493                         exit(1);
2494                 }
2495                 if (!rungroup) {
2496                         if (setgid(pw->pw_gid)) {
2497                                 ast_log(LOG_WARNING, "Unable to setgid to %d!\n", (int)pw->pw_gid);
2498                                 exit(1);
2499                         }
2500                         if (initgroups(pw->pw_name, pw->pw_gid)) {
2501                                 ast_log(LOG_WARNING, "Unable to init groups for '%s'\n", runuser);
2502                                 exit(1);
2503                         }
2504                 }
2505                 if (setuid(pw->pw_uid)) {
2506                         ast_log(LOG_WARNING, "Unable to setuid to %d (%s)\n", (int)pw->pw_uid, runuser);
2507                         exit(1);
2508                 }
2509                 setenv("ASTERISK_ALREADY_NONROOT", "yes", 1);
2510                 if (option_verbose)
2511                         ast_verbose("Running as user '%s'\n", runuser);
2512         }
2513
2514 #endif /* __CYGWIN__ */
2515
2516 #ifdef linux
2517         if (geteuid() && ast_opt_dump_core) {
2518                 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) < 0) {
2519                         ast_log(LOG_WARNING, "Unable to set the process for core dumps after changing to a non-root user. %s\n", strerror(errno));
2520                 }       
2521         }
2522 #endif
2523
2524         term_init();
2525         printf(term_end());
2526         fflush(stdout);
2527
2528         if (ast_opt_console && !option_verbose) 
2529                 ast_verbose("[ Initializing Custom Configuration Options ]");
2530         /* custom config setup */
2531         register_config_cli();
2532         read_config_maps();
2533         
2534         if (ast_opt_console) {
2535                 if (el_hist == NULL || el == NULL)
2536                         ast_el_initialize();
2537
2538                 if (!ast_strlen_zero(filename))
2539                         ast_el_read_history(filename);
2540         }
2541
2542         if (ast_tryconnect()) {
2543                 /* One is already running */
2544                 if (ast_opt_remote) {
2545                         if (ast_opt_exec) {
2546                                 ast_remotecontrol(xarg);
2547                                 quit_handler(0, 0, 0, 0);
2548                                 exit(0);
2549                         }
2550                         printf(term_quit());
2551                         ast_register_verbose(console_verboser);
2552                         WELCOME_MESSAGE;
2553                         ast_remotecontrol(NULL);
2554                         quit_handler(0, 0, 0, 0);
2555                         exit(0);
2556                 } else {
2557                         ast_log(LOG_ERROR, "Asterisk already running on %s.  Use 'asterisk -r' to connect.\n", ast_config_AST_SOCKET);
2558                         printf(term_quit());
2559                         exit(1);
2560                 }
2561         } else if (ast_opt_remote || ast_opt_exec) {
2562                 ast_log(LOG_ERROR, "Unable to connect to remote asterisk (does %s exist?)\n", ast_config_AST_SOCKET);
2563                 printf(term_quit());
2564                 exit(1);
2565         }
2566         /* Blindly write pid file since we couldn't connect */
2567         unlink(ast_config_AST_PID);
2568         f = fopen(ast_config_AST_PID, "w");
2569         if (f) {
2570                 fprintf(f, "%ld\n", (long)getpid());
2571                 fclose(f);
2572         } else
2573                 ast_log(LOG_WARNING, "Unable to open pid file '%s': %s\n", ast_config_AST_PID, strerror(errno));
2574
2575         if (ast_opt_always_fork || !ast_opt_no_fork) {
2576                 daemon(0, 0);
2577                 ast_mainpid = getpid();
2578                 /* Blindly re-write pid file since we are forking */
2579                 unlink(ast_config_AST_PID);
2580                 f = fopen(ast_config_AST_PID, "w");
2581                 if (f) {
2582                         fprintf(f, "%ld\n", (long)ast_mainpid);
2583                         fclose(f);
2584                 } else
2585                         ast_log(LOG_WARNING, "Unable to open pid file '%s': %s\n", ast_config_AST_PID, strerror(errno));
2586         }
2587
2588         /* Test recursive mutex locking. */
2589         if (test_for_thread_safety())
2590                 ast_verbose("Warning! Asterisk is not thread safe.\n");
2591
2592         ast_makesocket();
2593         sigemptyset(&sigs);
2594         sigaddset(&sigs, SIGHUP);
2595         sigaddset(&sigs, SIGTERM);
2596         sigaddset(&sigs, SIGINT);
2597         sigaddset(&sigs, SIGPIPE);
2598         sigaddset(&sigs, SIGWINCH);
2599         pthread_sigmask(SIG_BLOCK, &sigs, NULL);
2600         if (ast_opt_console || option_verbose || ast_opt_remote)
2601                 ast_register_verbose(console_verboser);
2602         /* Print a welcome message if desired */
2603         if (option_verbose || ast_opt_console) {
2604                 WELCOME_MESSAGE;
2605         }
2606         if (ast_opt_console && !option_verbose) 
2607                 ast_verbose("[ Booting...");
2608
2609         signal(SIGURG, urg_handler);
2610         signal(SIGINT, __quit_handler);
2611         signal(SIGTERM, __quit_handler);
2612         signal(SIGHUP, hup_handler);
2613         signal(SIGCHLD, child_handler);
2614         signal(SIGPIPE, SIG_IGN);
2615
2616         /* ensure that the random number generators are seeded with a different value every time
2617            Asterisk is started
2618         */
2619         srand((unsigned int) getpid() + (unsigned int) time(NULL));
2620         initstate((unsigned int) getpid() * 65536 + (unsigned int) time(NULL), randompool, sizeof(randompool));
2621
2622         if (init_logger()) {
2623                 printf(term_quit());
2624                 exit(1);
2625         }
2626         if (dnsmgr_init()) {
2627                 printf(term_quit());
2628                 exit(1);
2629         }
2630         /* load 'preload' modules, required for access to Realtime-mapped configuration files */
2631         if (load_modules(1)) {
2632                 printf(term_quit());
2633                 exit(1);
2634         }
2635         ast_http_init();
2636         ast_channels_init();
2637         if (init_manager()) {
2638                 printf(term_quit());
2639                 exit(1);
2640         }
2641         if (ast_cdr_engine_init()) {
2642                 printf(term_quit());
2643                 exit(1);
2644         }
2645         if (ast_device_state_engine_init()) {
2646                 printf(term_quit());
2647                 exit(1);
2648         }
2649         ast_rtp_init();
2650         ast_udptl_init();
2651         if (ast_image_init()) {
2652                 printf(term_quit());
2653                 exit(1);
2654         }
2655         if (ast_file_init()) {
2656                 printf(term_quit());
2657                 exit(1);
2658         }
2659         if (load_pbx()) {
2660                 printf(term_quit());
2661                 exit(1);
2662         }
2663         if (load_modules(0)) {
2664                 printf(term_quit());
2665                 exit(1);
2666         }
2667         if (init_framer()) {
2668                 printf(term_quit());
2669                 exit(1);
2670         }
2671         if (astdb_init()) {
2672                 printf(term_quit());
2673                 exit(1);
2674         }
2675         if (ast_enum_init()) {
2676                 printf(term_quit());
2677                 exit(1);
2678         }
2679
2680         dnsmgr_start_refresh();
2681
2682 #if 0
2683         /* This should no longer be necessary */
2684         /* sync cust config and reload some internals in case a custom config handler binded to them */
2685         read_ast_cust_config();
2686         reload_logger(0);
2687         reload_manager();
2688         ast_enum_reload();
2689         ast_rtp_reload();
2690 #endif
2691
2692         /* We might have the option of showing a console, but for now just
2693            do nothing... */
2694         if (ast_opt_console && !option_verbose)
2695                 ast_verbose(" ]\n");
2696         if (option_verbose || ast_opt_console)
2697                 ast_verbose(term_color(tmp, "Asterisk Ready.\n", COLOR_BRWHITE, COLOR_BLACK, sizeof(tmp)));
2698         if (ast_opt_no_fork)
2699                 consolethread = pthread_self();
2700         ast_set_flag(&ast_options, AST_OPT_FLAG_FULLY_BOOTED);
2701         pthread_sigmask(SIG_UNBLOCK, &sigs, NULL);
2702 #ifdef __AST_DEBUG_MALLOC
2703         __ast_mm_init();
2704 #endif  
2705         time(&ast_startuptime);
2706         ast_cli_register_multiple(core_cli, sizeof(core_cli) / sizeof(core_cli[0]));
2707         if (ast_opt_console) {
2708                 /* Console stuff now... */
2709                 /* Register our quit function */
2710                 char title[256];
2711                 set_icon("Asterisk");
2712                 snprintf(title, sizeof(title), "Asterisk Console on '%s' (pid %ld)", hostname, (long)ast_mainpid);
2713                 set_title(title);
2714
2715                 for (;;) {
2716                         buf = (char *)el_gets(el, &num);
2717                         if (buf) {
2718                                 if (buf[strlen(buf)-1] == '\n')
2719                                         buf[strlen(buf)-1] = '\0';
2720
2721                                 consolehandler((char *)buf);
2722                         } else {
2723                                 if (write(STDOUT_FILENO, "\nUse EXIT or QUIT to exit the asterisk console\n",
2724                                           strlen("\nUse EXIT or QUIT to exit the asterisk console\n")) < 0) {
2725                                         /* Whoa, stdout disappeared from under us... Make /dev/null's */
2726                                         int fd;
2727                                         fd = open("/dev/null", O_RDWR);
2728                                         if (fd > -1) {
2729                                                 dup2(fd, STDOUT_FILENO);
2730                                                 dup2(fd, STDIN_FILENO);
2731                                         } else
2732                                                 ast_log(LOG_WARNING, "Failed to open /dev/null to recover from dead console. Bad things will happen!\n");
2733                                         break;
2734                                 }
2735                         }
2736                 }
2737
2738         }
2739         /* Do nothing */
2740         for(;;)  {      /* apparently needed for the MACos */
2741                 struct pollfd p = { -1 /* no descriptor */, 0, 0 };
2742                 poll(&p, 0, -1);
2743         }
2744         return 0;
2745 }