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diff --git a/include/http_vhost.h b/include/http_vhost.h
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+++ b/include/http_vhost.h
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file  http_vhost.h
+ * @brief Virtual Host package
+ *
+ * @defgroup APACHE_CORE_VHOST Virtual Host Package
+ * @ingroup  APACHE_CORE
+ * @{
+ */
+
+#ifndef APACHE_HTTP_VHOST_H
+#define APACHE_HTTP_VHOST_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * called before any config is read
+ * @param p Pool to allocate out of
+ */
+AP_DECLARE(void) ap_init_vhost_config(apr_pool_t *p);
+
+/**
+ * called after the config has been read to compile the tables needed to do
+ * the run-time vhost lookups
+ * @param p The pool to allocate out of
+ * @param main_server The start of the virtual host list
+ */
+AP_DECLARE(void) ap_fini_vhost_config(apr_pool_t *p, server_rec *main_server);
+
+/**
+ * handle addresses in "<VirtualHost>" statement
+ * @param p The pool to allocate out of
+ * @param hostname The hostname in the VirtualHost statement
+ * @param s The list of Virtual Hosts.
+ */
+const char *ap_parse_vhost_addrs(apr_pool_t *p, const char *hostname, server_rec *s);
+
+/**
+ * handle NameVirtualHost directive
+ * @param cmd Command Parameters structure
+ * @param dummy NOT USED
+ * @param arg a host of the form "<address>[:port]"
+ */
+AP_DECLARE_NONSTD(const char *)ap_set_name_virtual_host(cmd_parms *cmd,
+                                                        void *dummy,
+                                                        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
+ */
+AP_DECLARE(void) ap_update_vhost_given_ip(conn_rec *conn);
+
+/**
+ * ap_update_vhost_given_ip is never enough, and this is always called after
+ * the headers have been read.  It may change r->server.
+ * @param r The current request
+ */
+AP_DECLARE(void) ap_update_vhost_from_headers(request_rec *r);
+
+/**
+ * Updates r->server with the best name-based virtual host match, within
+ * the chain of matching virtual hosts selected by ap_update_vhost_given_ip.
+ * @param r The current request
+ * @param require_match 1 to return an HTTP error if the requested hostname is
+ * not explicitly matched to a VirtualHost. 
+ * @return return HTTP_OK unless require_match was specified and the requested
+ * hostname did not match any ServerName, ServerAlias, or VirtualHost 
+ * address-spec.
+ */
+AP_DECLARE(int) ap_update_vhost_from_headers_ex(request_rec *r, int require_match);
+
+
+/**
+ * Match the host in the header with the hostname of the server for this
+ * request.
+ * @param r The current request
+ * @param host The hostname in the headers
+ * @param port The port from the headers
+ * @return return 1 if the host:port matches any of the aliases of r->server,
+ * return 0 otherwise
+ */
+AP_DECLARE(int) ap_matches_request_vhost(request_rec *r, const char *host,
+    apr_port_t port);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* !APACHE_HTTP_VHOST_H */
+/** @} */