##############################################################################
# httpd-2.0.x backport of ap_vhost_iterate_given_conn() (r164538):           #
# http://svn.apache.org/viewvc?view=rev&revision=164538                      #
##############################################################################
diff -ur httpd-2.0.63.orig/include/ap_mmn.h httpd-2.0.63/include/ap_mmn.h
--- httpd-2.0.63.orig/include/ap_mmn.h	2006-07-12 09:40:55.000000000 +0200
+++ httpd-2.0.63/include/ap_mmn.h	2007-12-20 01:19:03.000000000 +0100
@@ -87,6 +87,7 @@
  * 20020903.11 (2.0.55-dev) added trace_enable to core_server_config
  * 20020903.12 (2.0.56-dev) added ap_get_server_revision / ap_version_t
  * 20020903.13 (2.0.62-dev) Add *ftp_directory_charset to proxy_dir_conf
+ * 20020903.14 (2.0.64-dev) added ap_vhost_iterate_given_conn
  */
 
 #define MODULE_MAGIC_COOKIE 0x41503230UL /* "AP20" */
@@ -94,7 +95,7 @@
 #ifndef MODULE_MAGIC_NUMBER_MAJOR
 #define MODULE_MAGIC_NUMBER_MAJOR 20020903
 #endif
-#define MODULE_MAGIC_NUMBER_MINOR 13                    /* 0...n */
+#define MODULE_MAGIC_NUMBER_MINOR 14                    /* 0...n */
 
 /**
  * Determine if the server's current MODULE_MAGIC_NUMBER is at least a
diff -ur httpd-2.0.63.orig/include/http_vhost.h httpd-2.0.63/include/http_vhost.h
--- httpd-2.0.63.orig/include/http_vhost.h	2006-07-12 09:40:55.000000000 +0200
+++ httpd-2.0.63/include/http_vhost.h	2007-12-20 01:17:28.000000000 +0100
@@ -53,6 +53,30 @@
 				      const char *arg);
 
 /**
+ * Callback function for every Name Based Virtual Host.
+ * @param baton Opaque user object
+ * @param conn The current Connection
+ * @param s The current Server
+ * @see ap_vhost_iterate_given_conn
+ * @return 0 on success, any non-zero return will stop the iteration.
+ */
+typedef int(*ap_vhost_iterate_conn_cb)(void* baton, conn_rec* conn, server_rec* s);
+                
+/**
+ * For every virtual host on this connection, call func_cb.
+ * @param conn The current connection
+ * @param func_cb Function called for every Name Based Virtual Host for this 
+ *                connection.
+ * @param baton Opaque object passed to func_cb.
+ * @return The return value from func_cb.
+ * @note If func_cb returns non-zero, the function will return at this point, 
+ *       and not continue iterating the virtual hosts.
+ */
+AP_DECLARE(int) ap_vhost_iterate_given_conn(conn_rec *conn,
+                                            ap_vhost_iterate_conn_cb func_cb,
+                                            void* baton);
+
+/**
  * given an ip address only, give our best guess as to what vhost it is 
  * @param conn The current connection
  */
diff -ur httpd-2.0.63.orig/server/vhost.c httpd-2.0.63/server/vhost.c
--- httpd-2.0.63.orig/server/vhost.c	2006-07-12 09:40:55.000000000 +0200
+++ httpd-2.0.63/server/vhost.c	2007-12-20 01:17:11.000000000 +0100
@@ -984,6 +984,57 @@
 }
 
 
+/**
+ * For every virtual host on this connection, call func_cb.
+ */
+AP_DECLARE(int) ap_vhost_iterate_given_conn(conn_rec *conn,
+                                            ap_vhost_iterate_conn_cb func_cb,
+                                            void* baton)
+{
+    server_rec *s;
+    server_rec *last_s;
+    name_chain *src;
+    apr_port_t port;
+    int rv = 0;
+
+    if (conn->vhost_lookup_data) {
+        last_s = NULL;
+        port = conn->local_addr->port;
+
+        for (src = conn->vhost_lookup_data; src; src = src->next) {
+            server_addr_rec *sar;
+
+            /* We only consider addresses on the name_chain which have a
+             * matching port.
+             */
+            sar = src->sar;
+            if (sar->host_port != 0 && port != sar->host_port) {
+                continue;
+            }
+
+            s = src->server;
+
+            if (s == last_s) {
+                /* we've already done a callback for this vhost. */
+                continue;
+            }
+
+            last_s = s;
+
+            rv = func_cb(baton, conn, s);
+
+            if (rv != 0) {
+                break;
+            }
+        }
+    }
+    else {
+        rv = func_cb(baton, conn, conn->base_server);
+    }
+
+    return rv;
+}
+
 /* Called for a new connection which has a known local_addr.  Note that the
  * new connection is assumed to have conn->server == main server.
  */