From 09ac2863d273b0a3954769e11c5b8535763e5827 Mon Sep 17 00:00:00 2001
From: ebullient <ebullient@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Thu, 27 Feb 2003 03:23:21 +0000
Subject: [PATCH] Fix broken subject line that I doubt has worked since we went
 rg=0

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@4555 7612ce4b-ef26-0410-bec9-ea0150e637f0
---
 functions/mailbox_display.php |  2 +-
 functions/plugin.php          | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/functions/mailbox_display.php b/functions/mailbox_display.php
index 05162a90..1d04af2a 100644
--- a/functions/mailbox_display.php
+++ b/functions/mailbox_display.php
@@ -182,7 +182,7 @@ function printMessageInfo($imapConnection, $t, $not_last=true, $key, $mailbox,
                 $td_str .= '<a href="read_body.php?mailbox='.$urlMailbox
                         .  '&amp;passed_id='. $msg["ID"]
                         .  '&amp;startMessage='.$start_msg.$searchstr.'"';
-                do_hook("subject_link");
+                $td_str .= ' ' .concat_hook_function('subject_link');
                 if ($subject != $msg['SUBJECT']) {
                     $title = get_html_translation_table(HTML_SPECIALCHARS);
                     $title = array_flip($title);
diff --git a/functions/plugin.php b/functions/plugin.php
index 6277906d..e99b7fef 100644
--- a/functions/plugin.php
+++ b/functions/plugin.php
@@ -68,7 +68,25 @@ function do_hook_function($name,$parm=NULL) {
     return $ret;
 }
 
+/* This function executes a hook. */
+function concat_hook_function($name,$parm=NULL) {
+    global $squirrelmail_plugin_hooks;
+    $ret = '';
 
+    if (isset($squirrelmail_plugin_hooks[$name])
+          && is_array($squirrelmail_plugin_hooks[$name])) {
+        foreach ($squirrelmail_plugin_hooks[$name] as $function) {
+            /* Concatenate results from hook. */
+            if (function_exists($function)) {
+                $ret .= $function($parm);
+            }
+        }
+    }
+
+    /* Variable-length argument lists have a slight problem when */
+    /* passing values by reference. Pity. This is a workaround.  */
+    return $ret;
+}
 
 /**
  * This function checks whether the user's USER_AGENT is known to
-- 
2.25.1