Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.746
diff -u -p -r1.746 common.inc
--- includes/common.inc	22 Dec 2007 23:24:24 -0000	1.746
+++ includes/common.inc	3 Jan 2008 16:12:40 -0000
@@ -507,7 +507,15 @@ function drupal_http_request($url, $head
   list($split, $result->data) = explode("\r\n\r\n", $response, 2);
   $split = preg_split("/\r\n|\n|\r/", $split);
 
-  list($protocol, $code, $text) = explode(' ', trim(array_shift($split)), 3);
+  // If the response does not include a description, don't try to process it.
+  // The test length of 13 includes the protocol, a space, the response code
+  // and one additional space, e.g., "HTTP/1.1 200 "
+  if (strlen($split[0]) > 13) {
+    list($protocol, $code, $text) = explode(' ', trim(array_shift($split)), 3);
+  }
+  else {
+    list($protocol, $code) = explode(' ', trim(array_shift($split)), 2);
+  }
   $result->headers = array();
 
   // Parse headers.