From: indiri69 <indiri69@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Tue, 24 Feb 2004 22:07:27 +0000 (+0000)
Subject: Verify that concat_hook_function actually returned something before writing over... 
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=7753dac488fddaaa9029df53194281ae3bd012ef;p=squirrelmail.git

Verify that concat_hook_function actually returned something before writing over string.


git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@6658 7612ce4b-ef26-0410-bec9-ea0150e637f0
---

diff --git a/functions/display_messages.php b/functions/display_messages.php
index 13bed869..8b062421 100644
--- a/functions/display_messages.php
+++ b/functions/display_messages.php
@@ -126,7 +126,10 @@ function error_box($string, $color) {
 
     $err = _("ERROR");
 
-    $string = concat_hook_function('error_box', $string);
+    $ret = concat_hook_function('error_box', $string);
+    if($ret != '') {
+        $string = $ret;
+    }
 
     /* check if the page header has been sent; if not, send it! */
     if(!isset($pageheader_sent) && !$pageheader_sent) {