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Asterisk developer's documentation :: Codename Pineapple

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sip3_utils.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 2006  Edvina AB, Sollentuna, Sweden (chan_sip3 changes/additions)
 * and Edvina AB, Sollentuna, Sweden (chan_sip3 changes/additions)
 *
 * Olle E. Johansson
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*!
 * \file
 * \brief Various SIP utility functions
 *
 * Version 3 of chan_sip
 *
 * \author Olle E. Johansson <oej@edvina.net> 
 *
 * See Also:
 * \arg \ref AstCREDITS
 *
 */

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision: 53128 $")

#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <errno.h>
#include <stdlib.h>
#include <fcntl.h>
#include <netdb.h>
#include <signal.h>
#include <sys/signal.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <arpa/inet.h>
#include <netinet/ip.h>
#include <regex.h>

#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/logger.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/options.h"
#include "asterisk/lock.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/manager.h"
#include "asterisk/acl.h"
#include "asterisk/utils.h"
#include "asterisk/file.h"
#include "asterisk/astobj.h"
#include "asterisk/dnsmgr.h"
#include "asterisk/linkedlists.h"
#include "asterisk/stringfields.h"
#include "asterisk/monitor.h"
#include "asterisk/localtime.h"
#include "asterisk/compiler.h"
#include "sip3.h"
#include "sip3funcs.h"


GNURK void logdebug(int level, const char *fmt, ...)
   __attribute__ ((format (printf, 2, 3)));

/*! \brief Output message to LOG_DEBUG channel */
static void logdebug_va(int level, const char *fmt, va_list ap)
{
   if (option_debug >= level)
      ast_log(LOG_DEBUG, fmt, ap);
}

/*! \brief Append to SIP dialog history with arg list  */
GNURK void logdebug(int level, const char *fmt, ...)
{
   va_list ap;

   va_start(ap, fmt);
   logdebug_va(level, fmt, ap);
   va_end(ap);

   return;
}

GNURK void append_history_full(struct sip_dialog *p, const char *fmt, ...)
   __attribute__ ((format (printf, 2, 3)));

/*! \brief Append to SIP dialog history with arg list  */
GNURK void append_history_va(struct sip_dialog *p, const char *fmt, va_list ap)
{
   char buf[80], *c = buf; /* max history length */
   struct sip_history *hist;
   int l;

   vsnprintf(buf, sizeof(buf), fmt, ap);
   strsep(&c, "\r\n"); /* Trim up everything after \r or \n */
   l = strlen(buf) + 1;
   if (!(hist = ast_calloc(1, sizeof(*hist) + l)))
      return;
   if (!p->history && !(p->history = ast_calloc(1, sizeof(*p->history)))) {
      free(hist);
      return;
   }
   memcpy(hist->event, buf, l);
   AST_LIST_INSERT_TAIL(p->history, hist, list);
}

/*! \brief Append to SIP dialog history with arg list  */
GNURK void append_history_full(struct sip_dialog *dialog, const char *fmt, ...)
{
   va_list ap;

   if (!dialog)
      return;
   va_start(ap, fmt);
   append_history_va(dialog, fmt, ap);
   va_end(ap);

   return;
}

/*! \brief Dump SIP history to debug log file at end of lifespan for SIP dialog */
GNURK void sip_dump_history(struct sip_dialog *dialog)
{
   int x = 0;
   struct sip_history *hist;

   if (!dialog)
      return;

   if (!option_debug && !sipdebug) {
      ast_log(LOG_NOTICE, "You must have debugging enabled (SIP or Asterisk) in order to dump SIP history.\n");
      return;
   }

   ast_log(LOG_DEBUG, "\n---------- SIP HISTORY for '%s' \n", dialog->callid);
   if (dialog->subscribed)
      ast_log(LOG_DEBUG, "  * Subscription\n");
   else
      ast_log(LOG_DEBUG, "  * SIP Call\n");
   if (dialog->history)
      AST_LIST_TRAVERSE(dialog->history, hist, list)
         ast_log(LOG_DEBUG, "  %-3.3d. %s\n", ++x, hist->event);
   if (!x)
      ast_log(LOG_DEBUG, "Call '%s' has no history\n", dialog->callid);
   ast_log(LOG_DEBUG, "\n---------- END SIP HISTORY for '%s' \n", dialog->callid);
}

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