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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.
- */
-
-#ifndef APACHE_HTTP_PROTOCOL_H
-#define APACHE_HTTP_PROTOCOL_H
-
-#include "httpd.h"
-#include "apr_hooks.h"
-#include "apr_portable.h"
-#include "apr_mmap.h"
-#include "apr_buckets.h"
-#include "util_filter.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @package HTTP protocol handling
- */
-
-/**
- * This hook allows modules to insert filters for the current error response
- * @param r the current request
- * @ingroup hooks
- */
-AP_DECLARE_HOOK(void,insert_error_filter,(request_rec *r))
-
-/* This is an optimization. We keep a record of the filter_rec that
- * stores the old_write filter, so that we can avoid strcmp's later.
- */
-AP_DECLARE_DATA extern ap_filter_rec_t *ap_old_write_func;
-
-/*
- * Prototypes for routines which either talk directly back to the user,
- * or control the ones that eventually do.
- */
-
-/**
- * Read a request and fill in the fields.
- * @param c The current connection
- * @return The new request_rec
- */
-request_rec *ap_read_request(conn_rec *c);
-
-/**
- * Read the mime-encoded headers.
- * @param r The current request
- */
-AP_DECLARE(void) ap_get_mime_headers(request_rec *r);
-
-/**
- * Optimized version of ap_get_mime_headers() that requires a
- * temporary brigade to work with
- * @param r The current request
- * @param bb temp brigade
- */
-AP_DECLARE(void) ap_get_mime_headers_core(request_rec *r,
- apr_bucket_brigade *bb);
-
-/* Finish up stuff after a request */
-
-/**
- * Called at completion of sending the response. It sends the terminating
- * protocol information.
- * @param r The current request
- * @deffunc void ap_finalize_request_protocol(request_rec *r)
- */
-AP_DECLARE(void) ap_finalize_request_protocol(request_rec *r);
-
-/**
- * Send error back to client.
- * @param r The current request
- * @param recursive_error last arg indicates error status in case we get
- * an error in the process of trying to deal with an ErrorDocument
- * to handle some other error. In that case, we print the default
- * report for the first thing that went wrong, and more briefly report
- * on the problem with the ErrorDocument.
- * @deffunc void ap_send_error_response(request_rec *r, int recursive_error)
- */
-AP_DECLARE(void) ap_send_error_response(request_rec *r, int recursive_error);
-
-/* Set last modified header line from the lastmod date of the associated file.
- * Also, set content length.
- *
- * May return an error status, typically HTTP_NOT_MODIFIED (that when the
- * permit_cache argument is set to one).
- */
-
-/**
- * Set the content length for this request
- * @param r The current request
- * @param length The new content length
- * @deffunc void ap_set_content_length(request_rec *r, apr_off_t length)
- */
-AP_DECLARE(void) ap_set_content_length(request_rec *r, apr_off_t length);
-
-/**
- * Set the keepalive status for this request
- * @param r The current request
- * @return 1 if keepalive can be set, 0 otherwise
- * @deffunc int ap_set_keepalive(request_rec *r)
- */
-AP_DECLARE(int) ap_set_keepalive(request_rec *r);
-
-/**
- * Return the latest rational time from a request/mtime pair. Mtime is
- * returned unless it's in the future, in which case we return the current time.
- * @param r The current request
- * @param mtime The last modified time
- * @return the latest rational time.
- * @deffunc apr_time_t ap_rationalize_mtime(request_rec *r, apr_time_t mtime)
- */
-AP_DECLARE(apr_time_t) ap_rationalize_mtime(request_rec *r, apr_time_t mtime);
-
-/**
- * Build the content-type that should be sent to the client from the
- * content-type specified. The following rules are followed:
- * - if type is NULL, type is set to ap_default_type(r)
- * - if charset adding is disabled, stop processing and return type.
- * - then, if there are no parameters on type, add the default charset
- * - return type
- * @param r The current request
- * @return The content-type
- * @deffunc const char *ap_make_content_type(request_rec *r, const char *type);
- */
-AP_DECLARE(const char *) ap_make_content_type(request_rec *r,
- const char *type);
-
-#ifdef CORE_PRIVATE
-/**
- * Precompile metadata structures used by ap_make_content_type()
- * @param r The pool to use for allocations
- * @deffunc void ap_setup_make_content_type(apr_pool_t *pool)
- */
-AP_DECLARE(void) ap_setup_make_content_type(apr_pool_t *pool);
-#endif /* CORE_PRIVATE */
-
-/**
- * Construct an entity tag from the resource information. If it's a real
- * file, build in some of the file characteristics.
- * @param r The current request
- * @param force_weak Force the entity tag to be weak - it could be modified
- * again in as short an interval.
- * @return The entity tag
- * @deffunc char *ap_make_etag(request_rec *r, int force_weak)
- */
-AP_DECLARE(char *) ap_make_etag(request_rec *r, int force_weak);
-
-/**
- * Set the E-tag outgoing header
- * @param The current request
- * @deffunc void ap_set_etag(request_rec *r)
- */
-AP_DECLARE(void) ap_set_etag(request_rec *r);
-
-/**
- * Set the last modified time for the file being sent
- * @param r The current request
- * @deffunc void ap_set_last_modified(request_rec *r)
- */
-AP_DECLARE(void) ap_set_last_modified(request_rec *r);
-
-/**
- * Implements condition GET rules for HTTP/1.1 specification. This function
- * inspects the client headers and determines if the response fulfills
- * the requirements specified.
- * @param r The current request
- * @return OK if the response fulfills the condition GET rules, some
- * other status code otherwise
- * @deffunc int ap_meets_conditions(request_rec *r)
- */
-AP_DECLARE(int) ap_meets_conditions(request_rec *r);
-
-/* Other ways to send stuff at the client. All of these keep track
- * of bytes_sent automatically. This indirection is intended to make
- * it a little more painless to slide things like HTTP-NG packetization
- * underneath the main body of the code later. In the meantime, it lets
- * us centralize a bit of accounting (bytes_sent).
- *
- * These also return the number of bytes written by the call.
- * They should only be called with a timeout registered, for obvious reaasons.
- * (Ditto the send_header stuff).
- */
-
-/**
- * Send an entire file to the client, using sendfile if supported by the
- * current platform
- * @param fd The file to send.
- * @param r The current request
- * @param offset Offset into the file to start sending.
- * @param length Amount of data to send
- * @param nbytes Amount of data actually sent
- * @deffunc apr_status_t ap_send_fd(apr_file_t *fd, request_rec *r, apr_off_t offset, apr_size_t length, apr_size_t *nbytes);
- */
-AP_DECLARE(apr_status_t) ap_send_fd(apr_file_t *fd, request_rec *r, apr_off_t offset,
- apr_size_t length, apr_size_t *nbytes);
-
-#if APR_HAS_MMAP
-/**
- * Send an MMAP'ed file to the client
- * @param mm The MMAP'ed file to send
- * @param r The current request
- * @param offset The offset into the MMAP to start sending
- * @param length The amount of data to send
- * @return The number of bytes sent
- * @deffunc size_t ap_send_mmap(apr_mmap_t *mm, request_rec *r, size_t offset, size_t length)
- */
-AP_DECLARE(size_t) ap_send_mmap(apr_mmap_t *mm, request_rec *r, size_t offset,
- size_t length);
-#endif
-
-
-/**
- * Register a new request method, and return the offset that will be
- * associated with that method.
- *
- * @param p The pool to create registered method numbers from.
- * @param methname The name of the new method to register.
- * @return Ab int value representing an offset into a bitmask.
- */
-AP_DECLARE(int) ap_method_register(apr_pool_t *p, const char *methname);
-
-/**
- * Initialize the method_registry and allocate memory for it.
- *
- * @param p Pool to allocate memory for the registry from.
- */
-AP_DECLARE(void) ap_method_registry_init(apr_pool_t *p);
-
-/*
- * This is a convenience macro to ease with checking a mask
- * against a method name.
- */
-#define AP_METHOD_CHECK_ALLOWED(mask, methname) \
- ((mask) & (AP_METHOD_BIT << ap_method_number_of((methname))))
-
-/**
- * Create a new method list with the specified number of preallocated
- * slots for extension methods.
- *
- * @param p Pointer to a pool in which the structure should be
- * allocated.
- * @param nelts Number of preallocated extension slots
- * @return Pointer to the newly created structure.
- * @deffunc ap_method_list_t ap_make_method_list(apr_pool_t *p, int nelts)
- */
-AP_DECLARE(ap_method_list_t *) ap_make_method_list(apr_pool_t *p, int nelts);
-AP_DECLARE(void) ap_copy_method_list(ap_method_list_t *dest,
- ap_method_list_t *src);
-AP_DECLARE_NONSTD(void) ap_method_list_do(int (*comp) (void *urec, const char *mname,
- int mnum),
- void *rec,
- const ap_method_list_t *ml, ...);
-AP_DECLARE(void) ap_method_list_vdo(int (*comp) (void *urec, const char *mname,
- int mnum),
- void *rec, const ap_method_list_t *ml,
- va_list vp);
-/**
- * Search for an HTTP method name in an ap_method_list_t structure, and
- * return true if found.
- *
- * @param method String containing the name of the method to check.
- * @param l Pointer to a method list, such as cmd->methods_limited.
- * @return 1 if method is in the list, otherwise 0
- * @deffunc int ap_method_in_list(const char *method, ap_method_list_t *l)
- */
-AP_DECLARE(int) ap_method_in_list(ap_method_list_t *l, const char *method);
-
-/**
- * Add an HTTP method name to an ap_method_list_t structure if it isn't
- * already listed.
- *
- * @param method String containing the name of the method to check.
- * @param l Pointer to a method list, such as cmd->methods_limited.
- * @return None.
- * @deffunc void ap_method_in_list(ap_method_list_t *l, const char *method)
- */
-AP_DECLARE(void) ap_method_list_add(ap_method_list_t *l, const char *method);
-
-/**
- * Remove an HTTP method name from an ap_method_list_t structure.
- *
- * @param l Pointer to a method list, such as cmd->methods_limited.
- * @param method String containing the name of the method to remove.
- * @return None.
- * @deffunc void ap_method_list_remove(ap_method_list_t *l, const char *method)
- */
-AP_DECLARE(void) ap_method_list_remove(ap_method_list_t *l,
- const char *method);
-
-/**
- * Reset a method list to be completely empty.
- *
- * @param l Pointer to a method list, such as cmd->methods_limited.
- * @return None.
- * @deffunc void ap_clear_method_list(ap_method_list_t *l)
- */
-AP_DECLARE(void) ap_clear_method_list(ap_method_list_t *l);
-
-/**
- * Set the content type for this request (r->content_type).
- * @param r The current request
- * @param ct The new content type
- * @deffunc void ap_set_content_type(request_rec *r, const char* ct)
- * @warning This function must be called to set r->content_type in order
- * for the AddOutputFilterByType directive to work correctly.
- */
-AP_DECLARE(void) ap_set_content_type(request_rec *r, const char *ct);
-
-/* Hmmm... could macrofy these for now, and maybe forever, though the
- * definitions of the macros would get a whole lot hairier.
- */
-
-/**
- * Output one character for this request
- * @param c the character to output
- * @param r the current request
- * @return The number of bytes sent
- * @deffunc int ap_rputc(int c, request_rec *r)
- */
-AP_DECLARE(int) ap_rputc(int c, request_rec *r);
-
-/**
- * Output a string for the current request
- * @param str The string to output
- * @param r The current request
- * @return The number of bytes sent
- * @deffunc int ap_rputs(const char *str, request_rec *r)
- */
-AP_DECLARE(int) ap_rputs(const char *str, request_rec *r);
-
-/**
- * Write a buffer for the current request
- * @param buf The buffer to write
- * @param nbyte The number of bytes to send from the buffer
- * @param r The current request
- * @return The number of bytes sent
- * @deffunc int ap_rwrite(const void *buf, int nbyte, request_rec *r)
- */
-AP_DECLARE(int) ap_rwrite(const void *buf, int nbyte, request_rec *r);
-
-/**
- * Write an unspecified number of strings to the request
- * @param r The current request
- * @param ... The strings to write
- * @return The number of bytes sent
- * @deffunc int ap_rvputs(request_rec *r, ...)
- */
-AP_DECLARE_NONSTD(int) ap_rvputs(request_rec *r,...);
-
-/**
- * Output data to the client in a printf format
- * @param r The current request
- * @param fmt The format string
- * @param vlist The arguments to use to fill out the format string
- * @return The number of bytes sent
- * @deffunc int ap_vrprintf(request_rec *r, const char *fmt, va_list vlist)
- */
-AP_DECLARE(int) ap_vrprintf(request_rec *r, const char *fmt, va_list vlist);
-
-/**
- * Output data to the client in a printf format
- * @param r The current request
- * @param fmt The format string
- * @param ... The arguments to use to fill out the format string
- * @return The number of bytes sent
- * @deffunc int ap_rprintf(request_rec *r, const char *fmt, ...)
- */
-AP_DECLARE_NONSTD(int) ap_rprintf(request_rec *r, const char *fmt,...)
- __attribute__((format(printf,2,3)));
-/**
- * Flush all of the data for the current request to the client
- * @param r The current request
- * @return The number of bytes sent
- * @deffunc int ap_rflush(request_rec *r)
- */
-AP_DECLARE(int) ap_rflush(request_rec *r);
-
-/**
- * Index used in custom_responses array for a specific error code
- * (only use outside protocol.c is in getting them configured).
- * @param status HTTP status code
- * @return The index of the response
- * @deffunc int ap_index_of_response(int status)
- */
-AP_DECLARE(int) ap_index_of_response(int status);
-
-/**
- * Return the Status-Line for a given status code (excluding the
- * HTTP-Version field). If an invalid or unknown status code is
- * passed, "500 Internal Server Error" will be returned.
- * @param status The HTTP status code
- * @return The Status-Line
- * @deffunc const char *ap_get_status_line(int status)
- */
-AP_DECLARE(const char *) ap_get_status_line(int status);
-
-/* Reading a block of data from the client connection (e.g., POST arg) */
-
-/**
- * Setup the client to allow Apache to read the request body.
- * @param r The current request
- * @param read_policy How the server should interpret a chunked
- * transfer-encoding. One of: <pre>
- * REQUEST_NO_BODY Send 413 error if message has any body
- * REQUEST_CHUNKED_ERROR Send 411 error if body without Content-Length
- * REQUEST_CHUNKED_DECHUNK If chunked, remove the chunks for me.
- * </pre>
- * @return either OK or an error code
- * @deffunc int ap_setup_client_block(request_rec *r, int read_policy)
- */
-AP_DECLARE(int) ap_setup_client_block(request_rec *r, int read_policy);
-
-/**
- * Determine if the client has sent any data. This also sends a
- * 100 Continue response to HTTP/1.1 clients, so modules should not be called
- * until the module is ready to read content.
- * @warning Never call this function more than once.
- * @param r The current request
- * @return 0 if there is no message to read, 1 otherwise
- * @deffunc int ap_should_client_block(request_rec *r)
- */
-AP_DECLARE(int) ap_should_client_block(request_rec *r);
-
-/**
- * Call this in a loop. It will put data into a buffer and return the length
- * of the input block
- * @param r The current request
- * @param buffer The buffer in which to store the data
- * @param bufsiz The size of the buffer
- * @return Number of bytes inserted into the buffer. When done reading, 0
- * if EOF, or -1 if there was an error
- * @deffunc long ap_get_client_block(request_rec *r, char *buffer, apr_size_t bufsiz)
- */
-AP_DECLARE(long) ap_get_client_block(request_rec *r, char *buffer, apr_size_t bufsiz);
-
-/**
- * In HTTP/1.1, any method can have a body. However, most GET handlers
- * wouldn't know what to do with a request body if they received one.
- * This helper routine tests for and reads any message body in the request,
- * simply discarding whatever it receives. We need to do this because
- * failing to read the request body would cause it to be interpreted
- * as the next request on a persistent connection.
- * @param r The current request
- * @return error status if request is malformed, OK otherwise
- * @deffunc int ap_discard_request_body(request_rec *r)
- */
-AP_DECLARE(int) ap_discard_request_body(request_rec *r);
-
-
-/**
- * Setup the output headers so that the client knows how to authenticate
- * itself the next time, if an authentication request failed. This function
- * works for both basic and digest authentication
- * @param r The current request
- * @deffunc void ap_note_auth_failure(request_rec *r)
- */
-AP_DECLARE(void) ap_note_auth_failure(request_rec *r);
-
-/**
- * Setup the output headers so that the client knows how to authenticate
- * itself the next time, if an authentication request failed. This function
- * works only for basic authentication
- * @param r The current request
- * @deffunc void ap_note_basic_auth_failure(request_rec *r)
- */
-AP_DECLARE(void) ap_note_basic_auth_failure(request_rec *r);
-
-/**
- * Setup the output headers so that the client knows how to authenticate
- * itself the next time, if an authentication request failed. This function
- * works only for digest authentication
- * @param r The current request
- * @deffunc void ap_note_digest_auth_failure(request_rec *r)
- */
-AP_DECLARE(void) ap_note_digest_auth_failure(request_rec *r);
-
-/**
- * Get the password from the request headers
- * @param r The current request
- * @param pw The password as set in the headers
- * @return 0 (OK) if it set the 'pw' argument (and assured
- * a correct value in r->user); otherwise it returns
- * an error code, either HTTP_INTERNAL_SERVER_ERROR if things are
- * really confused, HTTP_UNAUTHORIZED if no authentication at all
- * seemed to be in use, or DECLINED if there was authentication but
- * it wasn't Basic (in which case, the caller should presumably
- * decline as well).
- * @deffunc int ap_get_basic_auth_pw(request_rec *r, const char **pw)
- */
-AP_DECLARE(int) ap_get_basic_auth_pw(request_rec *r, const char **pw);
-
-/**
- * parse_uri: break apart the uri
- * @warning Side Effects: <pre>
- * - sets r->args to rest after '?' (or NULL if no '?')
- * - sets r->uri to request uri (without r->args part)
- * - sets r->hostname (if not set already) from request (scheme://host:port)
- * </pre>
- * @param r The current request
- * @param uri The uri to break apart
- * @deffunc void ap_parse_uri(request_rec *r, const char *uri)
- */
-AP_CORE_DECLARE(void) ap_parse_uri(request_rec *r, const char *uri);
-
-/**
- * Get the next line of input for the request
- * @param s The buffer into which to read the line
- * @param n The size of the buffer
- * @param r The request
- * @param fold Whether to merge continuation lines
- * @return The length of the line, if successful
- * n, if the line is too big to fit in the buffer
- * -1 for miscellaneous errors
- * @deffunc int ap_method_number_of(const char *method)
- */
-AP_DECLARE(int) ap_getline(char *s, int n, request_rec *r, int fold);
-
-/**
- * Get the next line of input for the request
- *
- * Note: on ASCII boxes, ap_rgetline is a macro which simply calls
- * ap_rgetline_core to get the line of input.
- *
- * on EBCDIC boxes, ap_rgetline is a wrapper function which
- * translates ASCII protocol lines to the local EBCDIC code page
- * after getting the line of input.
- *
- * @param s Pointer to the pointer to the buffer into which the line
- * should be read; if *s==NULL, a buffer of the necessary size
- * to hold the data will be allocated from the request pool
- * @param n The size of the buffer
- * @param read The length of the line.
- * @param r The request
- * @param fold Whether to merge continuation lines
- * @param bb Working brigade to use when reading buckets
- * @return APR_SUCCESS, if successful
- * APR_ENOSPC, if the line is too big to fit in the buffer
- * Other errors where appropriate
- */
-#if APR_CHARSET_EBCDIC
-AP_DECLARE(apr_status_t) ap_rgetline(char **s, apr_size_t n,
- apr_size_t *read,
- request_rec *r, int fold,
- apr_bucket_brigade *bb);
-#else /* ASCII box */
-#define ap_rgetline(s, n, read, r, fold, bb) \
- ap_rgetline_core((s), (n), (read), (r), (fold), (bb))
-#endif
-AP_DECLARE(apr_status_t) ap_rgetline_core(char **s, apr_size_t n,
- apr_size_t *read,
- request_rec *r, int fold,
- apr_bucket_brigade *bb);
-
-/**
- * Get the method number associated with the given string, assumed to
- * contain an HTTP method. Returns M_INVALID if not recognized.
- * @param method A string containing a valid HTTP method
- * @return The method number
- */
-AP_DECLARE(int) ap_method_number_of(const char *method);
-
-/**
- * Get the method name associated with the given internal method
- * number. Returns NULL if not recognized.
- * @param p A pool to use for temporary allocations.
- * @param methnum An integer value corresponding to an internal method number
- * @return The name corresponding to the method number
- */
-AP_DECLARE(const char *) ap_method_name_of(apr_pool_t *p, int methnum);
-
-
- /* Hooks */
- /*
- * post_read_request --- run right after read_request or internal_redirect,
- * and not run during any subrequests.
- */
-/**
- * This hook allows modules to affect the request immediately after the request
- * has been read, and before any other phases have been processes. This allows
- * modules to make decisions based upon the input header fields
- * @param r The current request
- * @return OK or DECLINED
- * @deffunc ap_run_post_read_request(request_rec *r)
- */
-AP_DECLARE_HOOK(int,post_read_request,(request_rec *r))
-
-/**
- * This hook allows modules to perform any module-specific logging activities
- * over and above the normal server things.
- * @param r The current request
- * @return OK, DECLINED, or HTTP_...
- * @deffunc int ap_run_log_transaction(request_rec *r)
- */
-AP_DECLARE_HOOK(int,log_transaction,(request_rec *r))
-
-/**
- * This hook allows modules to retrieve the http method from a request. This
- * allows Apache modules to easily extend the methods that Apache understands
- * @param r The current request
- * @return The http method from the request
- * @deffunc const char *ap_run_http_method(const request_rec *r)
- */
-AP_DECLARE_HOOK(const char *,http_method,(const request_rec *r))
-
-/**
- * Return the default port from the current request
- * @param r The current request
- * @return The current port
- * @deffunc apr_port_t ap_run_default_port(const request_rec *r)
- */
-AP_DECLARE_HOOK(apr_port_t,default_port,(const request_rec *r))
-
-typedef struct ap_bucket_error ap_bucket_error;
-
-/**
- * A bucket referring to an HTTP error
- * This bucket can be passed down the filter stack to indicate that an
- * HTTP error occurred while running a filter. In order for this bucket
- * to be used successfully, it MUST be sent as the first bucket in the
- * first brigade to be sent from a given filter.
- */
-struct ap_bucket_error {
- /** Number of buckets using this memory */
- apr_bucket_refcount refcount;
- /** The error code */
- int status;
- /** The error string */
- const char *data;
-};
-
-AP_DECLARE_DATA extern const apr_bucket_type_t ap_bucket_type_error;
-
-/**
- * Determine if a bucket is an error bucket
- * @param e The bucket to inspect
- * @return true or false
- */
-#define AP_BUCKET_IS_ERROR(e) (e->type == &ap_bucket_type_error)
-
-/**
- * Make the bucket passed in an error bucket
- * @param b The bucket to make into an error bucket
- * @param error The HTTP error code to put in the bucket.
- * @param buf An optional error string to put in the bucket.
- * @param p A pool to allocate out of.
- * @return The new bucket, or NULL if allocation failed
- * @deffunc apr_bucket *ap_bucket_error_make(apr_bucket *b, int error, const char *buf, apr_pool_t *p)
- */
-AP_DECLARE(apr_bucket *) ap_bucket_error_make(apr_bucket *b, int error,
- const char *buf, apr_pool_t *p);
-
-/**
- * Create a bucket referring to an HTTP error.
- * @param error The HTTP error code to put in the bucket.
- * @param buf An optional error string to put in the bucket.
- * @param p A pool to allocate the error string out of.
- * @param list The bucket allocator from which to allocate the bucket
- * @return The new bucket, or NULL if allocation failed
- * @deffunc apr_bucket *ap_bucket_error_create(int error, const char *buf, apr_pool_t *p, apr_bucket_alloc_t *list)
- */
-AP_DECLARE(apr_bucket *) ap_bucket_error_create(int error, const char *buf,
- apr_pool_t *p,
- apr_bucket_alloc_t *list);
-
-AP_DECLARE_NONSTD(apr_status_t) ap_byterange_filter(ap_filter_t *f, apr_bucket_brigade *b);
-AP_DECLARE_NONSTD(apr_status_t) ap_http_header_filter(ap_filter_t *f, apr_bucket_brigade *b);
-AP_DECLARE_NONSTD(apr_status_t) ap_content_length_filter(ap_filter_t *,
- apr_bucket_brigade *);
-AP_DECLARE_NONSTD(apr_status_t) ap_old_write_filter(ap_filter_t *f, apr_bucket_brigade *b);
-
-/*
- * Setting up the protocol fields for subsidiary requests...
- * Also, a wrapup function to keep the internal accounting straight.
- */
-AP_DECLARE(void) ap_set_sub_req_protocol(request_rec *rnew, const request_rec *r);
-AP_DECLARE(void) ap_finalize_sub_req_protocol(request_rec *sub_r);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* !APACHE_HTTP_PROTOCOL_H */