strlen fixes and don't destroy SIP channels that still have pending things on them (bug #1552 et al)

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@2890 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 2 insertions, 1 deletions

diff --git a/apps/app_agi.c b/apps/app_agi.c
index 14fa27e49..fb73338d0 100755
--- a/apps/app_agi.c
+++ b/apps/app_agi.c
@@ -36,6 +36,7 @@
 #include <asterisk/app.h>
 #include <asterisk/dsp.h>
 #include <asterisk/musiconhold.h>
+#include <asterisk/utils.h>
 #include "../asterisk.h"
 #include "../astconf.h"
 
@@ -1465,7 +1466,7 @@ static int agi_exec_full(struct ast_channel *chan, void *data, int enhanced, int
 	int pid;
         char *stringp;
 	AGI agi;
-	if (!data || !strlen(data)) {
+	if (!data || ast_strlen_zero(data)) {
 		ast_log(LOG_WARNING, "AGI requires an argument (script)\n");
 		return -1;
 	}