Add transfer to IAX2, and transfer application

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1016 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/Makefile

@@ -20,7 +20,7 @@ APPS=app_dial.so app_playback.so app_voicemail.so app_directory.so app_intercom.
      app_setcidname.so app_lookupcidname.so app_substring.so app_macro.so \
      app_authenticate.so app_softhangup.so app_lookupblacklist.so \
      app_waitforring.so app_privacy.so app_db.so app_chanisavail.so \
-     app_enumlookup.so app_voicemail2.so
+     app_enumlookup.so app_voicemail2.so app_transfer.so
 
 #APPS+=app_sql_postgres.so
 #APPS+=app_sql_odbc.so

apps/app_enumlookup.c

@@ -26,11 +26,11 @@
 #include <pthread.h>
 
 
-static char *tdesc = "Date and Time";
+static char *tdesc = "ENUM Lookup";
 
 static char *app = "EnumLookup";
 
-static char *synopsis = "Say the date and time";
+static char *synopsis = "Lookup number in ENUM";
 
 static char *descrip = 
 "  EnumLookup(exten):  Looks up an extension via ENUM and sets\n"

apps/app_transfer.c

@@ -0,0 +1,94 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Time of day - Report the time of day
+ * 
+ * Copyright (C) 1999, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <asterisk/lock.h>
+#include <asterisk/file.h>
+#include <asterisk/logger.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/module.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <pthread.h>
+
+
+static char *tdesc = "Transfer";
+
+static char *app = "Transfer";
+
+static char *synopsis = "Transfer caller to remote extension";
+
+static char *descrip = 
+"  Transfer(exten):  Requests the remote caller be transferred to\n"
+"a given   Returns -1 on hangup, or 0 on completion\n"
+"regardless of whether the transfer was successful.  If the transfer\n"
+"was *not* supported or successful and there exists a priority n + 101,\n"
+"then that priority will be taken next.\n" ;
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int transfer_exec(struct ast_channel *chan, void *data)
+{
+	int res=0;
+	struct localuser *u;
+	if (!data || !strlen(data)) {
+		ast_log(LOG_WARNING, "Transfer requires an argument (destination)\n");
+		res = 1;
+	}
+	LOCAL_USER_ADD(u);
+	if (!res) {
+		res = ast_transfer(chan, data);
+	}
+	if (!res) {
+		/* Look for a "busy" place */
+		if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid))
+			chan->priority += 100;
+	}
+	if (res > 0)
+		res = 0;
+	LOCAL_USER_REMOVE(u);
+	return res;
+}
+
+int unload_module(void)
+{
+	STANDARD_HANGUP_LOCALUSERS;
+	return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+	return ast_register_application(app, transfer_exec, synopsis, descrip);
+}
+
+char *description(void)
+{
+	return tdesc;
+}
+
+int usecount(void)
+{
+	int res;
+	STANDARD_USECOUNT(res);
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}