app_alarmreceiver.c File Reference

Central Station Alarm receiver for Ademco Contact ID. More...

#include "asterisk.h"
#include <math.h>
#include <sys/wait.h>
#include <sys/time.h>
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/ulaw.h"
#include "asterisk/app.h"
#include "asterisk/dsp.h"
#include "asterisk/config.h"
#include "asterisk/localtime.h"
#include "asterisk/callerid.h"
#include "asterisk/astdb.h"
#include "asterisk/utils.h"

Include dependency graph for app_alarmreceiver.c:

Go to the source code of this file.

Data Structures
struct	event_node
Defines
#define	ADEMCO_CONTACT_ID   "ADEMCO_CONTACT_ID"
#define	ALMRCV_CONFIG   "alarmreceiver.conf"
Typedefs
typedef struct event_node	event_node_t
Functions
static void	__reg_module (void)
static void	__unreg_module (void)
static int	alarmreceiver_exec (struct ast_channel *chan, void *data)
static void	database_increment (char *key)
static int	load_config (void)
static int	load_module (void)
static int	log_events (struct ast_channel *chan, char *signalling_type, event_node_t *event)
static void	make_tone_burst (unsigned char *data, float freq, float loudness, int len, int *x)
static int	receive_ademco_contact_id (struct ast_channel *chan, void *data, int fdto, int sdto, int tldn, event_node_t **ehead)
static int	receive_dtmf_digits (struct ast_channel *chan, char *digit_string, int length, int fdto, int sdto)
static int	send_tone_burst (struct ast_channel *chan, float freq, int duration, int tldn)
static int	unload_module (void)
static int	write_event (FILE *logfile, event_node_t *event)
static int	write_metadata (FILE *logfile, char *signalling_type, struct ast_channel *chan)
Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Alarm Receiver for Asterisk" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "0901e4e500243c855563a2d78b0c03e4" , .load = load_module, .unload = unload_module, }
static char *	app = "AlarmReceiver"
static struct ast_module_info *	ast_module_info = &__mod_info
static char	db_family [128] = {'\0'}
static char	event_app [128] = {'\0'}
static char	event_file [14] = "/event-XXXXXX"
static char	event_spool_dir [128] = {'\0'}
static int	fdtimeout = 2000
static int	log_individual_events = 0
static int	sdtimeout = 200
static char	time_stamp_format [128] = {"%a %b %d, %Y @ %H:%M:%S %Z"}
static int	toneloudness = 4096

---

Detailed Description

Central Station Alarm receiver for Ademco Contact ID.

Author:

Steve Rodgers <hwstar@rodgers.sdcoxmail.com>

*** WARNING *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***

Use at your own risk. Please consult the GNU GPL license document included with Asterisk. *

*** WARNING *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***

Definition in file app_alarmreceiver.c.

---

Define Documentation

#define ADEMCO_CONTACT_ID   "ADEMCO_CONTACT_ID"

Definition at line 56 of file app_alarmreceiver.c.

Referenced by alarmreceiver_exec(), and receive_ademco_contact_id().

#define ALMRCV_CONFIG   "alarmreceiver.conf"

Definition at line 55 of file app_alarmreceiver.c.

Referenced by load_config().

---

Typedef Documentation

typedef struct event_node event_node_t

Definition at line 63 of file app_alarmreceiver.c.

---

Function Documentation

static void __reg_module

(

void

)

[static]

Definition at line 730 of file app_alarmreceiver.c.

static void __unreg_module

(

void

)

[static]

Definition at line 730 of file app_alarmreceiver.c.

static int alarmreceiver_exec	(	struct ast_channel *	chan,
		void *	data
	)			[static]

Definition at line 567 of file app_alarmreceiver.c.

References ast_channel::_state, ADEMCO_CONTACT_ID, ast_answer(), ast_copy_string(), ast_debug, AST_FORMAT_ULAW, ast_free, ast_log(), ast_safe_sleep(), ast_safe_system(), ast_set_read_format(), ast_set_write_format(), AST_STATE_UP, ast_strlen_zero(), ast_verb, log_events(), LOG_WARNING, ast_channel::name, event_node::next, and receive_ademco_contact_id().

Referenced by load_module().

{
   int res = 0;
   event_node_t *elp, *efree;
   char signalling_type[64] = "";
   event_node_t *event_head = NULL;

   /* Set write and read formats to ULAW */
   ast_verb(4, "AlarmReceiver: Setting read and write formats to ULAW\n");

   if (ast_set_write_format(chan,AST_FORMAT_ULAW)) {
      ast_log(LOG_WARNING, "AlarmReceiver: Unable to set write format to Mu-law on %s\n",chan->name);
      return -1;
   }

   if (ast_set_read_format(chan,AST_FORMAT_ULAW)) {
      ast_log(LOG_WARNING, "AlarmReceiver: Unable to set read format to Mu-law on %s\n",chan->name);
      return -1;
   }

   /* Set default values for this invocation of the application */
   ast_copy_string(signalling_type, ADEMCO_CONTACT_ID, sizeof(signalling_type));

   /* Answer the channel if it is not already */
   ast_verb(4, "AlarmReceiver: Answering channel\n");
   if (chan->_state != AST_STATE_UP) {
      if ((res = ast_answer(chan)))
         return -1;
   }

   /* Wait for the connection to settle post-answer */
   ast_verb(4, "AlarmReceiver: Waiting for connection to stabilize\n");
   res = ast_safe_sleep(chan, 1250);

   /* Attempt to receive the events */
   if (!res) {
      /* Determine the protocol to receive in advance */
      /* Note: Ademco contact is the only one supported at this time */
      /* Others may be added later */
      if(!strcmp(signalling_type, ADEMCO_CONTACT_ID))
         receive_ademco_contact_id(chan, data, fdtimeout, sdtimeout, toneloudness, &event_head);
      else
         res = -1;
   }

   /* Events queued by receiver, write them all out here if so configured */
   if ((!res) && (log_individual_events == 0))
      res = log_events(chan, signalling_type, event_head);

   /*
   * Do we exec a command line at the end?
   */
   if ((!res) && (!ast_strlen_zero(event_app)) && (event_head)) {
      ast_debug(1,"Alarmreceiver: executing: %s\n", event_app);
      ast_safe_system(event_app);
   }

   /*
   * Free up the data allocated in our linked list
   */
   for (elp = event_head; (elp != NULL);) {
      efree = elp;
      elp = elp->next;
      ast_free(efree);
   }

   return 0;
}

static void database_increment

(

char *

key

)

[static]

Definition at line 108 of file app_alarmreceiver.c.

References ast_db_get(), ast_db_put(), ast_strlen_zero(), and ast_verb.

Referenced by receive_ademco_contact_id().

{
   int res = 0;
   unsigned v;
   char value[16];
   
   
   if (ast_strlen_zero(db_family))
      return; /* If not defined, don't do anything */
   
   res = ast_db_get(db_family, key, value, sizeof(value) - 1);
   
   if (res) {
      ast_verb(4, "AlarmReceiver: Creating database entry %s and setting to 1\n", key);
      /* Guess we have to create it */
      res = ast_db_put(db_family, key, "1");
      return;
   }
   
   sscanf(value, "%30u", &v);
   v++;

   ast_verb(4, "AlarmReceiver: New value for %s: %u\n", key, v);

   snprintf(value, sizeof(value), "%u", v);

   res = ast_db_put(db_family, key, value);

   if (res)
      ast_verb(4, "AlarmReceiver: database_increment write error\n");

   return;
}

static int load_config

(

void

)

[static]

Definition at line 639 of file app_alarmreceiver.c.

References ALMRCV_CONFIG, ast_config_destroy(), ast_config_load, ast_copy_string(), ast_log(), ast_true(), ast_variable_retrieve(), ast_verb, CONFIG_STATUS_FILEINVALID, and LOG_ERROR.

Referenced by load_module().

{
   struct ast_config *cfg;
   const char *p;
   struct ast_flags config_flags = { 0 };

   /* Read in the config file */
   cfg = ast_config_load(ALMRCV_CONFIG, config_flags);

   if (!cfg) {
      ast_verb(4, "AlarmReceiver: No config file\n");
      return 0;
   } else if (cfg == CONFIG_STATUS_FILEINVALID) {
      ast_log(LOG_ERROR, "Config file %s is in an invalid format.  Aborting.\n", ALMRCV_CONFIG);
      return 0;
   } else {
      p = ast_variable_retrieve(cfg, "general", "eventcmd");
      if (p) {
         ast_copy_string(event_app, p, sizeof(event_app));
         event_app[sizeof(event_app) - 1] = '\0';
      }
      p = ast_variable_retrieve(cfg, "general", "loudness");
      if (p) {
         toneloudness = atoi(p);
         if(toneloudness < 100)
            toneloudness = 100;
         if(toneloudness > 8192)
            toneloudness = 8192;
      }
      p = ast_variable_retrieve(cfg, "general", "fdtimeout");
      if (p) {
         fdtimeout = atoi(p);
         if(fdtimeout < 1000)
            fdtimeout = 1000;
         if(fdtimeout > 10000)
            fdtimeout = 10000;
      }

      p = ast_variable_retrieve(cfg, "general", "sdtimeout");
      if (p) {
         sdtimeout = atoi(p);
         if(sdtimeout < 110)
            sdtimeout = 110;
         if(sdtimeout > 4000)
            sdtimeout = 4000;
      }

      p = ast_variable_retrieve(cfg, "general", "logindividualevents");
      if (p)
         log_individual_events = ast_true(p);

      p = ast_variable_retrieve(cfg, "general", "eventspooldir");
      if (p) {
         ast_copy_string(event_spool_dir, p, sizeof(event_spool_dir));
         event_spool_dir[sizeof(event_spool_dir) - 1] = '\0';
      }

      p = ast_variable_retrieve(cfg, "general", "timestampformat");
      if (p) {
         ast_copy_string(time_stamp_format, p, sizeof(time_stamp_format));
         time_stamp_format[sizeof(time_stamp_format) - 1] = '\0';
      }

      p = ast_variable_retrieve(cfg, "general", "db-family");
      if (p) {
         ast_copy_string(db_family, p, sizeof(db_family));
         db_family[sizeof(db_family) - 1] = '\0';
      }
      ast_config_destroy(cfg);
   }
   return 1;
}

static int load_module

(

void

)

[static]

Definition at line 720 of file app_alarmreceiver.c.

References alarmreceiver_exec(), AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_register_application_xml, and load_config().

{
   if (load_config()) {
      if (ast_register_application_xml(app, alarmreceiver_exec))
         return AST_MODULE_LOAD_FAILURE;
      return AST_MODULE_LOAD_SUCCESS;
   } else
      return AST_MODULE_LOAD_DECLINE;
}

static int log_events	(	struct ast_channel *	chan,
		char *	signalling_type,
		event_node_t *	event
	)			[static]

Definition at line 364 of file app_alarmreceiver.c.

References ast_copy_string(), ast_debug, ast_strlen_zero(), ast_verb, event_node::next, write_event(), and write_metadata().

Referenced by alarmreceiver_exec(), and receive_ademco_contact_id().

{

   int res = 0;
   char workstring[sizeof(event_spool_dir)+sizeof(event_file)] = "";
   int fd;
   FILE *logfile;
   event_node_t *elp = event;
   
   if (!ast_strlen_zero(event_spool_dir)) {
      
      /* Make a template */
      ast_copy_string(workstring, event_spool_dir, sizeof(workstring));
      strncat(workstring, event_file, sizeof(workstring) - strlen(workstring) - 1);
      
      /* Make the temporary file */
      fd = mkstemp(workstring);
      
      if (fd == -1) {
         ast_verb(3, "AlarmReceiver: can't make temporary file\n");
         ast_debug(1,"AlarmReceiver: can't make temporary file\n");
         res = -1;
      }

      if (!res) {
         logfile = fdopen(fd, "w");
         if (logfile) {
            /* Write the file */
            res = write_metadata(logfile, signalling_type, chan);
            if (!res)
               while ((!res) && (elp != NULL)) {
                  res = write_event(logfile, elp);
                  elp = elp->next;
               }
            if (!res) {
               if (fflush(logfile) == EOF)
                  res = -1;
               if (!res) {
                  if (fclose(logfile) == EOF)
                     res = -1;
               }
            }
         } else
            res = -1;
      }
   }

   return res;
}

static void make_tone_burst	(	unsigned char *	data,
		float	freq,
		float	loudness,
		int	len,
		int *	x
	)			[static]

Definition at line 146 of file app_alarmreceiver.c.

References AST_LIN2MU.

Referenced by send_tone_burst().

{
   int     i;
   float   val;

   for (i = 0; i < len; i++) {
      val = loudness * sin((freq * 2.0 * M_PI * (*x)++)/8000.0);
      data[i] = AST_LIN2MU((int)val);
   }

   /* wrap back around from 8000 */

   if (*x >= 8000)
      *x = 0;
   return;
}

static int receive_ademco_contact_id	(	struct ast_channel *	chan,
		void *	data,
		int	fdto,
		int	sdto,
		int	tldn,
		event_node_t **	ehead
	)			[static]

Definition at line 419 of file app_alarmreceiver.c.

References ADEMCO_CONTACT_ID, ast_calloc, ast_copy_string(), ast_debug, ast_safe_sleep(), ast_strlen_zero(), ast_verb, event_node::data, database_increment(), log_events(), event_node::next, receive_dtmf_digits(), and send_tone_burst().

Referenced by alarmreceiver_exec().

{
   int i, j;
   int res = 0;
   int checksum;
   char event[17];
   event_node_t *enew, *elp;
   int got_some_digits = 0;
   int events_received = 0;
   int ack_retries = 0;
   
   static char digit_map[15] = "0123456789*#ABC";
   static unsigned char digit_weights[15] = {10,1,2,3,4,5,6,7,8,9,11,12,13,14,15};

   database_increment("calls-received");

   /* Wait for first event */
   ast_verb(4, "AlarmReceiver: Waiting for first event from panel\n");

   while (res >= 0) {
      if (got_some_digits == 0) {
         /* Send ACK tone sequence */
         ast_verb(4, "AlarmReceiver: Sending 1400Hz 100ms burst (ACK)\n");
         res = send_tone_burst(chan, 1400.0, 100, tldn);
         if (!res)
            res = ast_safe_sleep(chan, 100);
         if (!res) {
            ast_verb(4, "AlarmReceiver: Sending 2300Hz 100ms burst (ACK)\n");
            res = send_tone_burst(chan, 2300.0, 100, tldn);
         }
      }
      if ( res >= 0)
         res = receive_dtmf_digits(chan, event, sizeof(event) - 1, fdto, sdto);
      if (res < 0) {
         if (events_received == 0) {
            /* Hangup with no events received should be logged in the DB */
            database_increment("no-events-received");
         } else {
            if (ack_retries) {
               ast_verb(4, "AlarmReceiver: ACK retries during this call: %d\n", ack_retries);
               database_increment("ack-retries");
            }
         }
         ast_verb(4, "AlarmReceiver: App exiting...\n");
         res = -1;
         break;
      }

      if (res != 0) {
         /* Didn't get all of the digits */
         ast_verb(2, "AlarmReceiver: Incomplete string: %s, trying again...\n", event);

         if (!got_some_digits) {
            got_some_digits = (!ast_strlen_zero(event)) ? 1 : 0;
            ack_retries++;
         }
         continue;
      }

      got_some_digits = 1;

      ast_verb(2, "AlarmReceiver: Received Event %s\n", event);
      ast_debug(1, "AlarmReceiver: Received event: %s\n", event);

      /* Calculate checksum */

      for (j = 0, checksum = 0; j < 16; j++) {
         for (i = 0; i < sizeof(digit_map); i++) {
            if (digit_map[i] == event[j])
               break;
         }

         if (i == 16)
            break;

         checksum += digit_weights[i];
      }
      if (i == 16) {
         ast_verb(2, "AlarmReceiver: Bad DTMF character %c, trying again\n", event[j]);
         continue; /* Bad character */
      }

      /* Checksum is mod(15) of the total */

      checksum = checksum % 15;

      if (checksum) {
         database_increment("checksum-errors");
         ast_verb(2, "AlarmReceiver: Nonzero checksum\n");
         ast_debug(1, "AlarmReceiver: Nonzero checksum\n");
         continue;
      }

      /* Check the message type for correctness */

      if (strncmp(event + 4, "18", 2)) {
         if (strncmp(event + 4, "98", 2)) {
            database_increment("format-errors");
            ast_verb(2, "AlarmReceiver: Wrong message type\n");
            ast_debug(1, "AlarmReceiver: Wrong message type\n");
         continue;
         }
      }

      events_received++;

      /* Queue the Event */
      if (!(enew = ast_calloc(1, sizeof(*enew)))) {
         res = -1;
         break;
      }

      enew->next = NULL;
      ast_copy_string(enew->data, event, sizeof(enew->data));

      /*
      * Insert event onto end of list
      */
      if (*ehead == NULL)
         *ehead = enew;
      else {
         for(elp = *ehead; elp->next != NULL; elp = elp->next)
         ;
         elp->next = enew;
      }

      if (res > 0)
         res = 0;

      /* Let the user have the option of logging the single event before sending the kissoff tone */
      if ((res == 0) && (log_individual_events))
         res = log_events(chan, ADEMCO_CONTACT_ID, enew);
      /* Wait 200 msec before sending kissoff */
      if (res == 0)
         res = ast_safe_sleep(chan, 200);

      /* Send the kissoff tone */
      if (res == 0)
         res = send_tone_burst(chan, 1400.0, 900, tldn);
   }

   return res;
}

static int receive_dtmf_digits	(	struct ast_channel *	chan,
		char *	digit_string,
		int	length,
		int	fdto,
		int	sdto
	)			[static]

Definition at line 232 of file app_alarmreceiver.c.

References AST_CONTROL_HANGUP, ast_debug, AST_FRAME_CONTROL, AST_FRAME_DTMF, ast_frfree, ast_read(), ast_tvdiff_ms(), ast_tvnow(), ast_verb, ast_waitfor(), ast_frame::data, f, ast_frame::frametype, ast_channel::hangupcause, ast_channel::name, ast_frame::subclass, and ast_frame::uint32.

Referenced by receive_ademco_contact_id().

{
   int res = 0;
   int i = 0;
   int r;
   struct ast_frame *f;
   struct timeval lastdigittime;

   lastdigittime = ast_tvnow();
   for (;;) {
      /* if outa time, leave */
      if (ast_tvdiff_ms(ast_tvnow(), lastdigittime) > ((i > 0) ? sdto : fdto)) {
         ast_verb(4, "AlarmReceiver: DTMF Digit Timeout on %s\n", chan->name);
         ast_debug(1,"AlarmReceiver: DTMF timeout on chan %s\n",chan->name);
         res = 1;
         break;
      }

      if ((r = ast_waitfor(chan, -1) < 0)) {
         ast_debug(1, "Waitfor returned %d\n", r);
         continue;
      }

      f = ast_read(chan);

      if (f == NULL) {
         res = -1;
         break;
      }

      /* If they hung up, leave */
      if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP)) {
         if (f->data.uint32) {
            chan->hangupcause = f->data.uint32;
         }
         ast_frfree(f);
         res = -1;
         break;
      }

      /* if not DTMF, just do it again */
      if (f->frametype != AST_FRAME_DTMF) {
         ast_frfree(f);
         continue;
      }

      digit_string[i++] = f->subclass;  /* save digit */

      ast_frfree(f);

      /* If we have all the digits we expect, leave */
      if(i >= length)
         break;

      lastdigittime = ast_tvnow();
   }

   digit_string[i] = '\0'; /* Nul terminate the end of the digit string */
   return res;
}

static int send_tone_burst	(	struct ast_channel *	chan,
		float	freq,
		int	duration,
		int	tldn
	)			[static]

Definition at line 167 of file app_alarmreceiver.c.

References AST_FORMAT_ULAW, AST_FRAME_VOICE, ast_frfree, AST_FRIENDLY_OFFSET, ast_log(), ast_read(), ast_verb, ast_waitfor(), ast_write(), buf, ast_frame::data, ast_frame::datalen, f, ast_frame::frametype, LOG_WARNING, make_tone_burst(), ast_frame::mallocd, ast_channel::name, ast_frame::offset, ast_frame::ptr, ast_frame::samples, and ast_frame::subclass.

Referenced by receive_ademco_contact_id().

{
   int res = 0;
   int i = 0;
   int x = 0;
   struct ast_frame *f, wf;
   
   struct {
      unsigned char offset[AST_FRIENDLY_OFFSET];
      unsigned char buf[640];
   } tone_block;

   for (;;) {

      if (ast_waitfor(chan, -1) < 0) {
         res = -1;
         break;
      }

      f = ast_read(chan);
      if (!f) {
         res = -1;
         break;
      }

      if (f->frametype == AST_FRAME_VOICE) {
         wf.frametype = AST_FRAME_VOICE;
         wf.subclass = AST_FORMAT_ULAW;
         wf.offset = AST_FRIENDLY_OFFSET;
         wf.mallocd = 0;
         wf.data.ptr = tone_block.buf;
         wf.datalen = f->datalen;
         wf.samples = wf.datalen;
         
         make_tone_burst(tone_block.buf, freq, (float) tldn, wf.datalen, &x);

         i += wf.datalen / 8;
         if (i > duration) {
            ast_frfree(f);
            break;
         }
         if (ast_write(chan, &wf)) {
            ast_verb(4, "AlarmReceiver: Failed to write frame on %s\n", chan->name);
            ast_log(LOG_WARNING, "AlarmReceiver Failed to write frame on %s\n",chan->name);
            res = -1;
            ast_frfree(f);
            break;
         }
      }

      ast_frfree(f);
   }
   return res;
}

static int unload_module

(

void

)

[static]

Definition at line 715 of file app_alarmreceiver.c.

References ast_unregister_application().

{
   return ast_unregister_application(app);
}

static int write_event	(	FILE *	logfile,
		event_node_t *	event
	)			[static]

Definition at line 350 of file app_alarmreceiver.c.

References event_node::data.

Referenced by log_events().

{
   int res = 0;

   if (fprintf(logfile, "%s\n", event->data) < 0)
      res = -1;

   return res;
}

static int write_metadata	(	FILE *	logfile,
		char *	signalling_type,
		struct ast_channel *	chan
	)			[static]

Definition at line 296 of file app_alarmreceiver.c.

References ast_callerid_parse(), ast_copy_string(), ast_debug, ast_localtime(), ast_shrink_phone_number(), ast_strftime(), ast_tvnow(), ast_verb, ast_channel::cid, and ast_callerid::cid_num.

Referenced by log_events().

{
   int res = 0;
   struct timeval t;
   struct ast_tm now;
   char *cl,*cn;
   char workstring[80];
   char timestamp[80];
   
   /* Extract the caller ID location */
   if (chan->cid.cid_num)
      ast_copy_string(workstring, chan->cid.cid_num, sizeof(workstring));
   workstring[sizeof(workstring) - 1] = '\0';

   ast_callerid_parse(workstring, &cn, &cl);
   if (cl)
      ast_shrink_phone_number(cl);

   /* Get the current time */
   t = ast_tvnow();
   ast_localtime(&t, &now, NULL);

   /* Format the time */
   ast_strftime(timestamp, sizeof(timestamp), time_stamp_format, &now);

   res = fprintf(logfile, "\n\n[metadata]\n\n");

   if (res >= 0)
      res = fprintf(logfile, "PROTOCOL=%s\n", signalling_type);

   if (res >= 0)
      res = fprintf(logfile, "CALLINGFROM=%s\n", (!cl) ? "<unknown>" : cl);

   if (res >- 0)
      res = fprintf(logfile, "CALLERNAME=%s\n", (!cn) ? "<unknown>" : cn);

   if (res >= 0)
      res = fprintf(logfile, "TIMESTAMP=%s\n\n", timestamp);

   if (res >= 0)
      res = fprintf(logfile, "[events]\n\n");

   if (res < 0) {
      ast_verb(3, "AlarmReceiver: can't write metadata\n");
      ast_debug(1,"AlarmReceiver: can't write metadata\n");
   } else
      res = 0;

   return res;
}

---

Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Alarm Receiver for Asterisk" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "0901e4e500243c855563a2d78b0c03e4" , .load = load_module, .unload = unload_module, } [static]

Definition at line 730 of file app_alarmreceiver.c.

char* app = "AlarmReceiver" [static]

Definition at line 65 of file app_alarmreceiver.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 730 of file app_alarmreceiver.c.

char db_family[128] = {'\0'} [static]

Definition at line 95 of file app_alarmreceiver.c.

char event_app[128] = {'\0'} [static]

Definition at line 94 of file app_alarmreceiver.c.

char event_file[14] = "/event-XXXXXX" [static]

Definition at line 99 of file app_alarmreceiver.c.

char event_spool_dir[128] = {'\0'} [static]

Definition at line 93 of file app_alarmreceiver.c.

int fdtimeout = 2000 [static]

Definition at line 89 of file app_alarmreceiver.c.

int log_individual_events = 0 [static]

Definition at line 92 of file app_alarmreceiver.c.

int sdtimeout = 200 [static]

Definition at line 90 of file app_alarmreceiver.c.

char time_stamp_format[128] = {"%a %b %d, %Y @ %H:%M:%S %Z"} [static]

Definition at line 96 of file app_alarmreceiver.c.

int toneloudness = 4096 [static]

Definition at line 91 of file app_alarmreceiver.c.