BugTrack/2401 Locked file_get_contents/file_put_contents on bugtrack

[pukiwiki/pukiwiki.git] / lib / file.php

diff --git a/lib/file.php b/lib/file.php
index e06d69d..b90a2f8 100644 (file)
--- a/lib/file.php
+++ b/lib/file.php
@@ -841,3 +841,19 @@ function pkwk_touch_file($filename, $time = FALSE, $atime = FALSE)
                        htmlsc(basename($filename)));
        }
 }
+
+/**
+ * Lock-enabled file_get_contents
+ *
+ * Require: PHP5+
+ */
+function pkwk_file_get_contents($filename) {
+       if (! file_exists($filename)) {
+               return false;
+       }
+       $fp   = fopen($filename, 'rb');
+       flock($fp, LOCK_SH);
+       $file = file_get_contents($filename);
+       flock($fp, LOCK_UN);
+       return $file;
+}