Index: cli.c
===================================================================
RCS file: /usr/cvsroot/asterisk/cli.c,v
retrieving revision 1.72
diff -u -r1.72 cli.c
--- cli.c	5 Feb 2005 16:49:14 -0000	1.72
+++ cli.c	26 Feb 2005 22:56:40 -0000
@@ -438,6 +438,10 @@
 "Usage: show channel <channel>\n"
 "       Shows lots of information about the specified channel.\n";
 
+static char showexten_help[] = 
+"Usage: show extension <extension[@context]>\n"
+"       Shows total of active channels on the specified extension.\n";
+
 static char debugchan_help[] = 
 "Usage: debug channel <channel>\n"
 "       Enables debugging on a specific channel.\n";
@@ -644,7 +648,74 @@
 		ast_cli(fd, "Debugging on new channels is disabled\n");
 	return RESULT_SUCCESS;
 }
-		
+
+
+static int handle_showexten(int fd, int argc, char *argv[]) {
+        struct ast_channel *c=NULL;
+        struct ast_context *cont=NULL;
+	int numexten = 0;
+	int context_existence = 0;
+	char *exten = NULL;
+	char *context = NULL;
+	
+        if (argc != 3)
+                return RESULT_SHOWUSAGE;
+
+	char *splitter = ast_strdupa(argv[2]);
+	/* is there a '@' character? */
+	if (splitter && strchr(argv[2], '@')) {
+		/* yes, split into exten & context ... */
+		exten   = strsep(&splitter, "@");
+		context = splitter;
+		/* check for length and change to NULL if ast_strlen_zero() */
+		if (ast_strlen_zero(exten))   exten = NULL;
+		if (ast_strlen_zero(context)) context = NULL;
+		/* check for that context existence */
+		cont = ast_walk_contexts(NULL);
+		while ( cont ) {
+	                if ( !context || !strcmp(ast_get_context_name(cont), context) ) {
+                        	context_existence = 1;
+			}
+			cont = ast_walk_contexts(cont);
+		}
+	} else {
+		/* no '@' char, only context given */
+		exten = argv[2];
+	}
+
+	if ( context && !context_existence ) {
+		ast_cli(fd,"There is no existence of '%s' context\n",context);
+		return RESULT_FAILURE;
+	}	
+
+
+
+        c = ast_channel_walk_locked(NULL);
+        while(c) {
+		if ( context ) {
+                	if ( !strcmp(exten,c->exten) && !strcmp(context,c->context) ) {
+				numexten++;
+			}
+			
+		} else {
+			if ( !strcmp(exten,c->exten) ) {
+                        	numexten++;
+                        }
+
+		}
+		ast_mutex_unlock(&c->lock);
+                c = ast_channel_walk_locked(c);
+        }
+	if ( context ) {
+		ast_cli(fd,"Extension %s (%s) is currently used on %d channel(s)\n",exten,context,numexten);
+	} else {
+		ast_cli(fd,"Extension %s is currently used on %d channel(s)\n",exten,numexten);
+
+	}
+
+
+	return RESULT_SUCCESS;
+}		
 	
 
 static int handle_showchan(int fd, int argc, char *argv[])
@@ -798,6 +869,7 @@
 	{ { "set", "verbose", NULL }, handle_set_verbose, "Set level of verboseness", set_verbose_help },
 	{ { "show", "channel", NULL }, handle_showchan, "Display information on a specific channel", showchan_help, complete_ch_3 },
 	{ { "show", "channels", NULL }, handle_chanlist, "Display information on channels", chanlist_help },
+	{ { "show", "extension", NULL }, handle_showexten, "Display total users on the specific extension", showexten_help },
 	{ { "show", "modules", NULL }, handle_modlist, "List modules and info", modlist_help },
 	{ { "show", "modules", "like", NULL }, handle_modlist, "List modules and info", modlist_help, complete_mod_4 },
  	{ { "show", "uptime", NULL }, handle_showuptime, "Show uptime information", uptime_help },