From b3720e9b10b580103dfa34b1104c2248e8a3c9e5 Mon Sep 17 00:00:00 2001
From: Anthony Minessale <anthony.minessale@gmail.com>
Date: Fri, 1 Aug 2008 16:00:55 +0000
Subject: [PATCH] fix endless loop in mod_expr
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9217 d0543943-73ff-0310-b7d9-9358b9ac24b2
---
src/mod/applications/mod_expr/mod_expr.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/mod/applications/mod_expr/mod_expr.c b/src/mod/applications/mod_expr/mod_expr.c
index e3573b6016..9500ded7d9 100644
--- a/src/mod/applications/mod_expr/mod_expr.c
+++ b/src/mod/applications/mod_expr/mod_expr.c
@@ -52,6 +52,7 @@ SWITCH_STANDARD_API(expr_function)
char val[512] = "", *p;
char *m_cmd = NULL;
size_t len;
+ int ec = 0;
if (switch_strlen_zero(cmd)) {
goto error;
@@ -126,7 +127,16 @@ SWITCH_STANDARD_API(expr_function)
do {
err = exprEval(e, &last_expr);
- } while (err);
+ if (err) {
+ ec++;
+ } else {
+ ec = 0;
+ }
+ } while (err && ec < 3);
+
+ if (err) {
+ goto error;
+ }
switch_snprintf(val, sizeof(val), "%0.10f", last_expr);
for (p = (val + strlen(val) - 1); p != val; p--) {