From: Justin Erenkrantz <jerenkrantz@apache.org>
Date: Mon, 15 Apr 2002 02:58:11 +0000 (+0000)
Subject: Allow empty Host: header arguments.
X-Git-Tag: 2.0.36~195
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e955e53d372368f8af153134e6cd0c350b97ddd5;p=thirdparty%2Fapache%2Fhttpd.git

Allow empty Host: header arguments.

Previously, request that sent:

GET / HTTP/1.1
Host:

would get a 400.  RFC 2616 specifically allows for a "blank" host field.

The read_request code properly handled this, but the fix_hostname in
vhost.c would cause the 400.  Now, simply return in fix_hostname when
we see a blank hostname rather than erroring out.

PR: 7441


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@94655 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/server/vhost.c b/server/vhost.c
index 07ea8c4f5e7..03e89481cfa 100644
--- a/server/vhost.c
+++ b/server/vhost.c
@@ -745,6 +745,11 @@ static void fix_hostname(request_rec *r)
     apr_port_t port;
     apr_status_t rv;
 
+    /* According to RFC 2616, Host header field CAN be blank. */
+    if (!*r->hostname) {
+        return;
+    }
+
     rv = apr_parse_addr_port(&host, &scope_id, &port, r->hostname, r->pool);
     if (rv != APR_SUCCESS || scope_id) {
         goto bad;