Add ENUM lookup support

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@932 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -1,3 +1,4 @@
+ -- Add initial ENUM support
  -- Add malloc debugging support
  -- Add preliminary Voicetronix support
  -- Add iLBC codec

Makefile

@@ -104,13 +104,13 @@ SUBDIRS=res channels pbx apps codecs formats agi cdr astman
 ifeq (${OSARCH},Linux)
 LIBS=-ldl
 endif
-LIBS+=-lpthread -lncurses -lm  #-lnjamd
+LIBS+=-lpthread -lncurses -lm -lresolv  #-lnjamd
 OBJS=io.o sched.o logger.o frame.o loader.o config.o channel.o \
 	translate.o file.o say.o pbx.o cli.o md5.o term.o \
 	ulaw.o alaw.o callerid.o fskmodem.o image.o app.o \
 	cdr.o tdd.o acl.o rtp.o manager.o asterisk.o ast_expr.o \
 	dsp.o chanvars.o indications.o autoservice.o db.o privacy.o \
-	astmm.o
+	astmm.o enum.o
 CC=gcc
 INSTALL=install
 

apps/Makefile

@@ -19,7 +19,8 @@ APPS=app_dial.so app_playback.so app_voicemail.so app_directory.so app_intercom.
      app_queue.so app_senddtmf.so app_parkandannounce.so app_striplsd.so \
      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_waitforring.so app_privacy.so app_db.so app_chanisavail.so \
+     app_enumlookup.so
 
 #APPS+=app_sql_postgres.so
 #APPS+=app_sql_odbc.so

apps/app_enumlookup.c

@@ -0,0 +1,112 @@
+/*
+ * 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 <asterisk/enum.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <pthread.h>
+
+
+static char *tdesc = "Date and Time";
+
+static char *app = "EnumLookup";
+
+static char *synopsis = "Say the date and time";
+
+static char *descrip = 
+"  EnumLookup(exten):  Looks up an extension via ENUM and sets\n"
+"the variable 'ENUM'.  Returns -1 on hangup, or 0 on completion\n"
+"regardless of whether the lookup was successful.  If the lookup\n"
+"was *not* successful and there exists a priority n + 101, then\n"
+"that priority will be taken next.\n" ;
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int enumlookup_exec(struct ast_channel *chan, void *data)
+{
+	int res=0;
+	char tech[80];
+	char dest[80];
+	char tmp[256];
+	char *c;
+	struct localuser *u;
+	if (!data || !strlen(data)) {
+		ast_log(LOG_WARNING, "EnumLookup requires an argument (extension)\n");
+		res = 1;
+	}
+	LOCAL_USER_ADD(u);
+	if (!res) {
+		res = ast_get_enum(chan, data, dest, sizeof(dest), tech, sizeof(tech));
+		printf("ENUM got '%d'\n", res);
+	}
+	LOCAL_USER_REMOVE(u);
+	/* Parse it out */
+	if (res > 0) {
+		if (!strcasecmp(tech, "SIP")) {
+			c = dest;
+			if (!strncmp(c, "sip:", 4))
+				c += 4;
+			snprintf(tmp, sizeof(tmp), "SIP/%s", c);
+			pbx_builtin_setvar_helper(chan, "ENUM", tmp);
+		} else if (strlen(tech)) {
+			ast_log(LOG_NOTICE, "Don't know how to handle technology '%s'\n", tech);
+			res = 0;
+		}
+	}
+	if (!res) {
+		/* Look for a "busy" place */
+		if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid))
+			chan->priority += 100;
+	} else if (res > 0)
+		res = 0;
+	return res;
+}
+
+int unload_module(void)
+{
+	STANDARD_HANGUP_LOCALUSERS;
+	return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+	return ast_register_application(app, enumlookup_exec, synopsis, descrip);
+}
+
+char *description(void)
+{
+	return tdesc;
+}
+
+int usecount(void)
+{
+	int res;
+	STANDARD_USECOUNT(res);
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}