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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_HTTPD_H
-#define APACHE_HTTPD_H
-
-/**
- * @file httpd.h
- * @brief HTTP Daemon routines
- */
-
-/* XXX - We need to push more stuff to other .h files, or even .c files, to
- * make this file smaller
- */
-
-/* Headers in which EVERYONE has an interest... */
-#include "ap_config.h"
-#include "ap_mmn.h"
-
-#include "ap_release.h"
-
-#include "apr_general.h"
-#include "apr_tables.h"
-#include "apr_pools.h"
-#include "apr_time.h"
-#include "apr_network_io.h"
-#include "apr_buckets.h"
-
-#include "os.h"
-
-#include "pcreposix.h"
-
-/* Note: util_uri.h is also included, see below */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef CORE_PRIVATE
-
-/* ----------------------------- config dir ------------------------------ */
-
-/* Define this to be the default server home dir. Most things later in this
- * file with a relative pathname will have this added.
- */
-#ifndef HTTPD_ROOT
-#ifdef OS2
-/* Set default for OS/2 file system */
-#define HTTPD_ROOT "/os2httpd"
-#elif defined(WIN32)
-/* Set default for Windows file system */
-#define HTTPD_ROOT "/apache"
-#elif defined (BEOS)
-/* Set the default for BeOS */
-#define HTTPD_ROOT "/boot/home/apache"
-#elif defined (NETWARE)
-/* Set the default for NetWare */
-#define HTTPD_ROOT "/apache"
-#else
-#define HTTPD_ROOT "/usr/local/apache"
-#endif
-#endif /* HTTPD_ROOT */
-
-/*
- * --------- You shouldn't have to edit anything below this line ----------
- *
- * Any modifications to any defaults not defined above should be done in the
- * respective configuration file.
- *
- */
-
-/* Default location of documents. Can be overridden by the DocumentRoot
- * directive.
- */
-#ifndef DOCUMENT_LOCATION
-#ifdef OS2
-/* Set default for OS/2 file system */
-#define DOCUMENT_LOCATION HTTPD_ROOT "/docs"
-#else
-#define DOCUMENT_LOCATION HTTPD_ROOT "/htdocs"
-#endif
-#endif /* DOCUMENT_LOCATION */
-
-/* Maximum number of dynamically loaded modules */
-#ifndef DYNAMIC_MODULE_LIMIT
-#define DYNAMIC_MODULE_LIMIT 64
-#endif
-
-/* Default administrator's address */
-#define DEFAULT_ADMIN "[no address given]"
-
-/* The name of the log files */
-#ifndef DEFAULT_ERRORLOG
-#if defined(OS2) || defined(WIN32)
-#define DEFAULT_ERRORLOG "logs/error.log"
-#else
-#define DEFAULT_ERRORLOG "logs/error_log"
-#endif
-#endif /* DEFAULT_ERRORLOG */
-
-/* Define this to be what your per-directory security files are called */
-#ifndef DEFAULT_ACCESS_FNAME
-#ifdef OS2
-/* Set default for OS/2 file system */
-#define DEFAULT_ACCESS_FNAME "htaccess"
-#else
-#define DEFAULT_ACCESS_FNAME ".htaccess"
-#endif
-#endif /* DEFAULT_ACCESS_FNAME */
-
-/* The name of the server config file */
-#ifndef SERVER_CONFIG_FILE
-#define SERVER_CONFIG_FILE "conf/httpd.conf"
-#endif
-
-/* Whether we should enable rfc1413 identity checking */
-#ifndef DEFAULT_RFC1413
-#define DEFAULT_RFC1413 0
-#endif
-
-/* The default path for CGI scripts if none is currently set */
-#ifndef DEFAULT_PATH
-#define DEFAULT_PATH "/bin:/usr/bin:/usr/ucb:/usr/bsd:/usr/local/bin"
-#endif
-
-/* The path to the suExec wrapper, can be overridden in Configuration */
-#ifndef SUEXEC_BIN
-#define SUEXEC_BIN HTTPD_ROOT "/bin/suexec"
-#endif
-
-/* The timeout for waiting for messages */
-#ifndef DEFAULT_TIMEOUT
-#define DEFAULT_TIMEOUT 300
-#endif
-
-/* The timeout for waiting for keepalive timeout until next request */
-#ifndef DEFAULT_KEEPALIVE_TIMEOUT
-#define DEFAULT_KEEPALIVE_TIMEOUT 15
-#endif
-
-/* The number of requests to entertain per connection */
-#ifndef DEFAULT_KEEPALIVE
-#define DEFAULT_KEEPALIVE 100
-#endif
-
-/* Limits on the size of various request items. These limits primarily
- * exist to prevent simple denial-of-service attacks on a server based
- * on misuse of the protocol. The recommended values will depend on the
- * nature of the server resources -- CGI scripts and database backends
- * might require large values, but most servers could get by with much
- * smaller limits than we use below. The request message body size can
- * be limited by the per-dir config directive LimitRequestBody.
- *
- * Internal buffer sizes are two bytes more than the DEFAULT_LIMIT_REQUEST_LINE
- * and DEFAULT_LIMIT_REQUEST_FIELDSIZE below, which explains the 8190.
- * These two limits can be lowered (but not raised) by the server config
- * directives LimitRequestLine and LimitRequestFieldsize, respectively.
- *
- * DEFAULT_LIMIT_REQUEST_FIELDS can be modified or disabled (set = 0) by
- * the server config directive LimitRequestFields.
- */
-#ifndef DEFAULT_LIMIT_REQUEST_LINE
-#define DEFAULT_LIMIT_REQUEST_LINE 8190
-#endif /* default limit on bytes in Request-Line (Method+URI+HTTP-version) */
-#ifndef DEFAULT_LIMIT_REQUEST_FIELDSIZE
-#define DEFAULT_LIMIT_REQUEST_FIELDSIZE 8190
-#endif /* default limit on bytes in any one header field */
-#ifndef DEFAULT_LIMIT_REQUEST_FIELDS
-#define DEFAULT_LIMIT_REQUEST_FIELDS 100
-#endif /* default limit on number of request header fields */
-
-
-/**
- * The default default character set name to add if AddDefaultCharset is
- * enabled. Overridden with AddDefaultCharsetName.
- */
-#define DEFAULT_ADD_DEFAULT_CHARSET_NAME "iso-8859-1"
-
-#endif /* CORE_PRIVATE */
-
-/** default HTTP Server protocol */
-#define AP_SERVER_PROTOCOL "HTTP/1.1"
-
-
-/* ------------------ stuff that modules are allowed to look at ----------- */
-
-/** Define this to be what your HTML directory content files are called */
-#ifndef AP_DEFAULT_INDEX
-#define AP_DEFAULT_INDEX "index.html"
-#endif
-
-
-/**
- * Define this to be what type you'd like returned for files with unknown
- * suffixes.
- * @warning MUST be all lower case.
- */
-#ifndef DEFAULT_CONTENT_TYPE
-#define DEFAULT_CONTENT_TYPE "text/plain"
-#endif
-
-/** The name of the MIME types file */
-#ifndef AP_TYPES_CONFIG_FILE
-#define AP_TYPES_CONFIG_FILE "conf/mime.types"
-#endif
-
-/*
- * Define the HTML doctype strings centrally.
- */
-/** HTML 2.0 Doctype */
-#define DOCTYPE_HTML_2_0 "<!DOCTYPE HTML PUBLIC \"-//IETF//" \
- "DTD HTML 2.0//EN\">\n"
-/** HTML 3.2 Doctype */
-#define DOCTYPE_HTML_3_2 "<!DOCTYPE HTML PUBLIC \"-//W3C//" \
- "DTD HTML 3.2 Final//EN\">\n"
-/** HTML 4.0 Strict Doctype */
-#define DOCTYPE_HTML_4_0S "<!DOCTYPE HTML PUBLIC \"-//W3C//" \
- "DTD HTML 4.0//EN\"\n" \
- "\"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
-/** HTML 4.0 Transitional Doctype */
-#define DOCTYPE_HTML_4_0T "<!DOCTYPE HTML PUBLIC \"-//W3C//" \
- "DTD HTML 4.0 Transitional//EN\"\n" \
- "\"http://www.w3.org/TR/REC-html40/loose.dtd\">\n"
-/** HTML 4.0 Frameset Doctype */
-#define DOCTYPE_HTML_4_0F "<!DOCTYPE HTML PUBLIC \"-//W3C//" \
- "DTD HTML 4.0 Frameset//EN\"\n" \
- "\"http://www.w3.org/TR/REC-html40/frameset.dtd\">\n"
-/** XHTML 1.0 Strict Doctype */
-#define DOCTYPE_XHTML_1_0S "<!DOCTYPE html PUBLIC \"-//W3C//" \
- "DTD XHTML 1.0 Strict//EN\"\n" \
- "\"http://www.w3.org/TR/xhtml1/DTD/" \
- "xhtml1-strict.dtd\">\n"
-/** XHTML 1.0 Transitional Doctype */
-#define DOCTYPE_XHTML_1_0T "<!DOCTYPE html PUBLIC \"-//W3C//" \
- "DTD XHTML 1.0 Transitional//EN\"\n" \
- "\"http://www.w3.org/TR/xhtml1/DTD/" \
- "xhtml1-transitional.dtd\">\n"
-/** XHTML 1.0 Frameset Doctype */
-#define DOCTYPE_XHTML_1_0F "<!DOCTYPE html PUBLIC \"-//W3C//" \
- "DTD XHTML 1.0 Frameset//EN\"\n" \
- "\"http://www.w3.org/TR/xhtml1/DTD/" \
- "xhtml1-frameset.dtd\">"
-
-/** Internal representation for a HTTP protocol number, e.g., HTTP/1.1 */
-
-#define HTTP_VERSION(major,minor) (1000*(major)+(minor))
-/** Major part of HTTP protocol */
-#define HTTP_VERSION_MAJOR(number) ((number)/1000)
-/** Minor part of HTTP protocol */
-#define HTTP_VERSION_MINOR(number) ((number)%1000)
-
-/* -------------- Port number for server running standalone --------------- */
-
-/** default HTTP Port */
-#define DEFAULT_HTTP_PORT 80
-/** default HTTPS Port */
-#define DEFAULT_HTTPS_PORT 443
-/**
- * Check whether @a port is the default port for the request @a r.
- * @param port The port number
- * @param r The request
- * @see #ap_default_port
- */
-#define ap_is_default_port(port,r) ((port) == ap_default_port(r))
-/**
- * Get the default port for a request (which depends on the scheme).
- * @param r The request
- */
-#define ap_default_port(r) ap_run_default_port(r)
-/**
- * Get the scheme for a request.
- * @param r The request
- * @bug This should be called ap_http_scheme!
- */
-#define ap_http_method(r) ap_run_http_method(r)
-
-/** The default string lengths */
-#define MAX_STRING_LEN HUGE_STRING_LEN
-#define HUGE_STRING_LEN 8192
-
-/** The size of the server's internal read-write buffers */
-#define AP_IOBUFSIZE 8192
-
-/** The max number of regex captures that can be expanded by ap_pregsub */
-#define AP_MAX_REG_MATCH 10
-
-/**
- * APR_HAS_LARGE_FILES introduces the problem of spliting sendfile into
- * mutiple buckets, no greater than MAX(apr_size_t), and more granular
- * than that in case the brigade code/filters attempt to read it directly.
- * ### 16mb is an invention, no idea if it is reasonable.
- */
-#define AP_MAX_SENDFILE 16777216 /* 2^24 */
-
-/**
- * Special Apache error codes. These are basically used
- * in http_main.c so we can keep track of various errors.
- *
- */
-/** a normal exit */
-#define APEXIT_OK 0x0
-/** A fatal error arising during the server's init sequence */
-#define APEXIT_INIT 0x2
-/** The child died during its init sequence */
-#define APEXIT_CHILDINIT 0x3
-/**
- * The child exited due to a resource shortage.
- * The parent should limit the rate of forking until
- * the situation is resolved.
- */
-#define APEXIT_CHILDSICK 0x7
-/**
- * A fatal error, resulting in the whole server aborting.
- * If a child exits with this error, the parent process
- * considers this a server-wide fatal error and aborts.
- */
-#define APEXIT_CHILDFATAL 0xf
-
-#ifndef AP_DECLARE
-/**
- * Stuff marked #AP_DECLARE is part of the API, and intended for use
- * by modules. Its purpose is to allow us to add attributes that
- * particular platforms or compilers require to every exported function.
- */
-# define AP_DECLARE(type) type
-#endif
-
-#ifndef AP_DECLARE_NONSTD
-/**
- * Stuff marked #AP_DECLARE_NONSTD is part of the API, and intended for
- * use by modules. The difference between #AP_DECLARE and
- * #AP_DECLARE_NONSTD is that the latter is required for any functions
- * which use varargs or are used via indirect function call. This
- * is to accomodate the two calling conventions in windows dlls.
- */
-# define AP_DECLARE_NONSTD(type) type
-#endif
-#ifndef AP_DECLARE_DATA
-# define AP_DECLARE_DATA
-#endif
-
-#ifndef AP_MODULE_DECLARE
-# define AP_MODULE_DECLARE(type) type
-#endif
-#ifndef AP_MODULE_DECLARE_NONSTD
-# define AP_MODULE_DECLARE_NONSTD(type) type
-#endif
-#ifndef AP_MODULE_DECLARE_DATA
-# define AP_MODULE_DECLARE_DATA
-#endif
-
-/**
- * @internal
- * modules should not used functions marked AP_CORE_DECLARE
- */
-#ifndef AP_CORE_DECLARE
-# define AP_CORE_DECLARE AP_DECLARE
-#endif
-/**
- * @internal
- * modules should not used functions marked AP_CORE_DECLARE_NONSTD
- */
-
-#ifndef AP_CORE_DECLARE_NONSTD
-# define AP_CORE_DECLARE_NONSTD AP_DECLARE_NONSTD
-#endif
-
-/**
- * The numeric version information is broken out into fields within this
- * structure.
- */
-typedef struct {
- int major; /**< major number */
- int minor; /**< minor number */
- int patch; /**< patch number */
- const char *add_string; /**< additional string like "-dev" */
-} ap_version_t;
-
-/**
- * Return httpd's version information in a numeric form.
- *
- * @param version Pointer to a version structure for returning the version
- * information.
- */
-AP_DECLARE(void) ap_get_server_revision(ap_version_t *version);
-
-/**
- * Get the server version string
- * @return The server version string
- */
-AP_DECLARE(const char *) ap_get_server_version(void);
-
-/**
- * Add a component to the version string
- * @param pconf The pool to allocate the component from
- * @param component The string to add
- */
-AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component);
-
-/**
- * Get the date a time that the server was built
- * @return The server build time string
- */
-AP_DECLARE(const char *) ap_get_server_built(void);
-
-#define DECLINED -1 /**< Module declines to handle */
-#define DONE -2 /**< Module has served the response completely
- * - it's safe to die() with no more output
- */
-#define OK 0 /**< Module has handled this stage. */
-
-
-/**
- * @defgroup HTTP_Status HTTP Status Codes
- * @{
- */
-/**
- * The size of the static array in http_protocol.c for storing
- * all of the potential response status-lines (a sparse table).
- * A future version should dynamically generate the apr_table_t at startup.
- */
-#define RESPONSE_CODES 57
-
-#define HTTP_CONTINUE 100
-#define HTTP_SWITCHING_PROTOCOLS 101
-#define HTTP_PROCESSING 102
-#define HTTP_OK 200
-#define HTTP_CREATED 201
-#define HTTP_ACCEPTED 202
-#define HTTP_NON_AUTHORITATIVE 203
-#define HTTP_NO_CONTENT 204
-#define HTTP_RESET_CONTENT 205
-#define HTTP_PARTIAL_CONTENT 206
-#define HTTP_MULTI_STATUS 207
-#define HTTP_MULTIPLE_CHOICES 300
-#define HTTP_MOVED_PERMANENTLY 301
-#define HTTP_MOVED_TEMPORARILY 302
-#define HTTP_SEE_OTHER 303
-#define HTTP_NOT_MODIFIED 304
-#define HTTP_USE_PROXY 305
-#define HTTP_TEMPORARY_REDIRECT 307
-#define HTTP_BAD_REQUEST 400
-#define HTTP_UNAUTHORIZED 401
-#define HTTP_PAYMENT_REQUIRED 402
-#define HTTP_FORBIDDEN 403
-#define HTTP_NOT_FOUND 404
-#define HTTP_METHOD_NOT_ALLOWED 405
-#define HTTP_NOT_ACCEPTABLE 406
-#define HTTP_PROXY_AUTHENTICATION_REQUIRED 407
-#define HTTP_REQUEST_TIME_OUT 408
-#define HTTP_CONFLICT 409
-#define HTTP_GONE 410
-#define HTTP_LENGTH_REQUIRED 411
-#define HTTP_PRECONDITION_FAILED 412
-#define HTTP_REQUEST_ENTITY_TOO_LARGE 413
-#define HTTP_REQUEST_URI_TOO_LARGE 414
-#define HTTP_UNSUPPORTED_MEDIA_TYPE 415
-#define HTTP_RANGE_NOT_SATISFIABLE 416
-#define HTTP_EXPECTATION_FAILED 417
-#define HTTP_UNPROCESSABLE_ENTITY 422
-#define HTTP_LOCKED 423
-#define HTTP_FAILED_DEPENDENCY 424
-#define HTTP_UPGRADE_REQUIRED 426
-#define HTTP_INTERNAL_SERVER_ERROR 500
-#define HTTP_NOT_IMPLEMENTED 501
-#define HTTP_BAD_GATEWAY 502
-#define HTTP_SERVICE_UNAVAILABLE 503
-#define HTTP_GATEWAY_TIME_OUT 504
-#define HTTP_VERSION_NOT_SUPPORTED 505
-#define HTTP_VARIANT_ALSO_VARIES 506
-#define HTTP_INSUFFICIENT_STORAGE 507
-#define HTTP_NOT_EXTENDED 510
-
-/** is the status code informational */
-#define ap_is_HTTP_INFO(x) (((x) >= 100)&&((x) < 200))
-/** is the status code OK ?*/
-#define ap_is_HTTP_SUCCESS(x) (((x) >= 200)&&((x) < 300))
-/** is the status code a redirect */
-#define ap_is_HTTP_REDIRECT(x) (((x) >= 300)&&((x) < 400))
-/** is the status code a error (client or server) */
-#define ap_is_HTTP_ERROR(x) (((x) >= 400)&&((x) < 600))
-/** is the status code a client error */
-#define ap_is_HTTP_CLIENT_ERROR(x) (((x) >= 400)&&((x) < 500))
-/** is the status code a server error */
-#define ap_is_HTTP_SERVER_ERROR(x) (((x) >= 500)&&((x) < 600))
-
-/** should the status code drop the connection */
-#define ap_status_drops_connection(x) \
- (((x) == HTTP_BAD_REQUEST) || \
- ((x) == HTTP_REQUEST_TIME_OUT) || \
- ((x) == HTTP_LENGTH_REQUIRED) || \
- ((x) == HTTP_REQUEST_ENTITY_TOO_LARGE) || \
- ((x) == HTTP_REQUEST_URI_TOO_LARGE) || \
- ((x) == HTTP_INTERNAL_SERVER_ERROR) || \
- ((x) == HTTP_SERVICE_UNAVAILABLE) || \
- ((x) == HTTP_NOT_IMPLEMENTED))
-/** @} */
-/**
- * @defgroup Methods List of Methods recognized by the server
- * @{
- */
-/**
- * Methods recognized (but not necessarily handled) by the server.
- * These constants are used in bit shifting masks of size int, so it is
- * unsafe to have more methods than bits in an int. HEAD == M_GET.
- * This list must be tracked by the list in http_protocol.c in routine
- * ap_method_name_of().
- */
-#define M_GET 0 /* RFC 2616: HTTP */
-#define M_PUT 1 /* : */
-#define M_POST 2
-#define M_DELETE 3
-#define M_CONNECT 4
-#define M_OPTIONS 5
-#define M_TRACE 6 /* RFC 2616: HTTP */
-#define M_PATCH 7 /* no rfc(!) ### remove this one? */
-#define M_PROPFIND 8 /* RFC 2518: WebDAV */
-#define M_PROPPATCH 9 /* : */
-#define M_MKCOL 10
-#define M_COPY 11
-#define M_MOVE 12
-#define M_LOCK 13
-#define M_UNLOCK 14 /* RFC 2518: WebDAV */
-#define M_VERSION_CONTROL 15 /* RFC 3253: WebDAV Versioning */
-#define M_CHECKOUT 16 /* : */
-#define M_UNCHECKOUT 17
-#define M_CHECKIN 18
-#define M_UPDATE 19
-#define M_LABEL 20
-#define M_REPORT 21
-#define M_MKWORKSPACE 22
-#define M_MKACTIVITY 23
-#define M_BASELINE_CONTROL 24
-#define M_MERGE 25
-#define M_INVALID 26 /* RFC 3253: WebDAV Versioning */
-
-/**
- * METHODS needs to be equal to the number of bits
- * we are using for limit masks.
- */
-#define METHODS 64
-
-/**
- * The method mask bit to shift for anding with a bitmask.
- */
-#define AP_METHOD_BIT ((apr_int64_t)1)
-/** @} */
-
-
-/**
- * Structure for handling HTTP methods. Methods known to the server are
- * accessed via a bitmask shortcut; extension methods are handled by
- * an array.
- */
-typedef struct ap_method_list_t ap_method_list_t;
-struct ap_method_list_t {
- /* The bitmask used for known methods */
- apr_int64_t method_mask;
- /* the array used for extension methods */
- apr_array_header_t *method_list;
-};
-/**
- * @defgroup module_magic Module Magic mime types
- * @{
- */
-/** Magic for mod_cgi[d] */
-#define CGI_MAGIC_TYPE "application/x-httpd-cgi"
-/** Magic for mod_include */
-#define INCLUDES_MAGIC_TYPE "text/x-server-parsed-html"
-/** Magic for mod_include */
-#define INCLUDES_MAGIC_TYPE3 "text/x-server-parsed-html3"
-/** Magic for mod_dir */
-#define DIR_MAGIC_TYPE "httpd/unix-directory"
-
-/** @} */
-/* Just in case your linefeed isn't the one the other end is expecting. */
-#if !APR_CHARSET_EBCDIC
-/** linefeed */
-#define LF 10
-/** carrige return */
-#define CR 13
-/** carrige return /Line Feed Combo */
-#define CRLF "\015\012"
-#else /* APR_CHARSET_EBCDIC */
-/* For platforms using the EBCDIC charset, the transition ASCII->EBCDIC is done
- * in the buff package (bread/bputs/bwrite). Everywhere else, we use
- * "native EBCDIC" CR and NL characters. These are therefore
- * defined as
- * '\r' and '\n'.
- */
-#define CR '\r'
-#define LF '\n'
-#define CRLF "\r\n"
-#endif /* APR_CHARSET_EBCDIC */
-
-/**
- * @defgroup values_request_rec_body Possible values for request_rec.read_body
- * @{
- * Possible values for request_rec.read_body (set by handling module):
- */
-
-/** Send 413 error if message has any body */
-#define REQUEST_NO_BODY 0
-/** Send 411 error if body without Content-Length */
-#define REQUEST_CHUNKED_ERROR 1
-/** If chunked, remove the chunks for me. */
-#define REQUEST_CHUNKED_DECHUNK 2
-/** @} */
-
-/**
- * @defgroup values_request_rec_used_path_info Possible values for request_rec.used_path_info
- * @{
- * Possible values for request_rec.used_path_info:
- */
-
-/** Accept the path_info from the request */
-#define AP_REQ_ACCEPT_PATH_INFO 0
-/** Return a 404 error if path_info was given */
-#define AP_REQ_REJECT_PATH_INFO 1
-/** Module may chose to use the given path_info */
-#define AP_REQ_DEFAULT_PATH_INFO 2
-/** @} */
-
-/*
- * Things which may vary per file-lookup WITHIN a request ---
- * e.g., state of MIME config. Basically, the name of an object, info
- * about the object, and any other info we may ahve which may need to
- * change as we go poking around looking for it (e.g., overridden by
- * .htaccess files).
- *
- * Note how the default state of almost all these things is properly
- * zero, so that allocating it with pcalloc does the right thing without
- * a whole lot of hairy initialization... so long as we are willing to
- * make the (fairly) portable assumption that the bit pattern of a NULL
- * pointer is, in fact, zero.
- */
-
-/**
- * This represents the result of calling htaccess; these are cached for
- * each request.
- */
-struct htaccess_result {
- /** the directory to which this applies */
- const char *dir;
- /** the overrides allowed for the .htaccess file */
- int override;
- /** the configuration directives */
- struct ap_conf_vector_t *htaccess;
- /** the next one, or NULL if no more; N.B. never change this */
- const struct htaccess_result *next;
-};
-
-/* The following four types define a hierarchy of activities, so that
- * given a request_rec r you can write r->connection->server->process
- * to get to the process_rec. While this reduces substantially the
- * number of arguments that various hooks require beware that in
- * threaded versions of the server you must consider multiplexing
- * issues. */
-
-
-/** A structure that represents one process */
-typedef struct process_rec process_rec;
-/** A structure that represents a virtual server */
-typedef struct server_rec server_rec;
-/** A structure that represents one connection */
-typedef struct conn_rec conn_rec;
-/** A structure that represents the current request */
-typedef struct request_rec request_rec;
-
-/* ### would be nice to not include this from httpd.h ... */
-/* This comes after we have defined the request_rec type */
-#include "apr_uri.h"
-
-/** A structure that represents one process */
-struct process_rec {
- /** Global pool. Cleared upon normal exit */
- apr_pool_t *pool;
- /** Configuration pool. Cleared upon restart */
- apr_pool_t *pconf;
- /** Number of command line arguments passed to the program */
- int argc;
- /** The command line arguments */
- const char * const *argv;
- /** The program name used to execute the program */
- const char *short_name;
-};
-
-/** A structure that represents the current request */
-struct request_rec {
- /** The pool associated with the request */
- apr_pool_t *pool;
- /** The connection to the client */
- conn_rec *connection;
- /** The virtual host for this request */
- server_rec *server;
-
- /** Pointer to the redirected request if this is an external redirect */
- request_rec *next;
- /** Pointer to the previous request if this is an internal redirect */
- request_rec *prev;
-
- /** Pointer to the main request if this is a sub-request
- * (see http_request.h) */
- request_rec *main;
-
- /* Info about the request itself... we begin with stuff that only
- * protocol.c should ever touch...
- */
- /** First line of request */
- char *the_request;
- /** HTTP/0.9, "simple" request (e.g. GET /foo\n w/no headers) */
- int assbackwards;
- /** A proxy request (calculated during post_read_request/translate_name)
- * possible values PROXYREQ_NONE, PROXYREQ_PROXY, PROXYREQ_REVERSE,
- * PROXYREQ_RESPONSE
- */
- int proxyreq;
- /** HEAD request, as opposed to GET */
- int header_only;
- /** Protocol string, as given to us, or HTTP/0.9 */
- char *protocol;
- /** Protocol version number of protocol; 1.1 = 1001 */
- int proto_num;
- /** Host, as set by full URI or Host: */
- const char *hostname;
-
- /** Time when the request started */
- apr_time_t request_time;
-
- /** Status line, if set by script */
- const char *status_line;
- /** Status line */
- int status;
-
- /* Request method, two ways; also, protocol, etc.. Outside of protocol.c,
- * look, but don't touch.
- */
-
- /** Request method (eg. GET, HEAD, POST, etc.) */
- const char *method;
- /** M_GET, M_POST, etc. */
- int method_number;
-
- /**
- * 'allowed' is a bitvector of the allowed methods.
- *
- * A handler must ensure that the request method is one that
- * it is capable of handling. Generally modules should DECLINE
- * any request methods they do not handle. Prior to aborting the
- * handler like this the handler should set r->allowed to the list
- * of methods that it is willing to handle. This bitvector is used
- * to construct the "Allow:" header required for OPTIONS requests,
- * and HTTP_METHOD_NOT_ALLOWED and HTTP_NOT_IMPLEMENTED status codes.
- *
- * Since the default_handler deals with OPTIONS, all modules can
- * usually decline to deal with OPTIONS. TRACE is always allowed,
- * modules don't need to set it explicitly.
- *
- * Since the default_handler will always handle a GET, a
- * module which does *not* implement GET should probably return
- * HTTP_METHOD_NOT_ALLOWED. Unfortunately this means that a Script GET
- * handler can't be installed by mod_actions.
- */
- apr_int64_t allowed;
- /** Array of extension methods */
- apr_array_header_t *allowed_xmethods;
- /** List of allowed methods */
- ap_method_list_t *allowed_methods;
-
- /** byte count in stream is for body */
- apr_off_t sent_bodyct;
- /** body byte count, for easy access */
- apr_off_t bytes_sent;
- /** Last modified time of the requested resource */
- apr_time_t mtime;
-
- /* HTTP/1.1 connection-level features */
-
- /** sending chunked transfer-coding */
- int chunked;
- /** The Range: header */
- const char *range;
- /** The "real" content length */
- apr_off_t clength;
-
- /** Remaining bytes left to read from the request body */
- apr_off_t remaining;
- /** Number of bytes that have been read from the request body */
- apr_off_t read_length;
- /** Method for reading the request body
- * (eg. REQUEST_CHUNKED_ERROR, REQUEST_NO_BODY,
- * REQUEST_CHUNKED_DECHUNK, etc...) */
- int read_body;
- /** reading chunked transfer-coding */
- int read_chunked;
- /** is client waiting for a 100 response? */
- unsigned expecting_100;
-
- /* MIME header environments, in and out. Also, an array containing
- * environment variables to be passed to subprocesses, so people can
- * write modules to add to that environment.
- *
- * The difference between headers_out and err_headers_out is that the
- * latter are printed even on error, and persist across internal redirects
- * (so the headers printed for ErrorDocument handlers will have them).
- *
- * The 'notes' apr_table_t is for notes from one module to another, with no
- * other set purpose in mind...
- */
-
- /** MIME header environment from the request */
- apr_table_t *headers_in;
- /** MIME header environment for the response */
- apr_table_t *headers_out;
- /** MIME header environment for the response, printed even on errors and
- * persist across internal redirects */
- apr_table_t *err_headers_out;
- /** Array of environment variables to be used for sub processes */
- apr_table_t *subprocess_env;
- /** Notes from one module to another */
- apr_table_t *notes;
-
- /* content_type, handler, content_encoding, and all content_languages
- * MUST be lowercased strings. They may be pointers to static strings;
- * they should not be modified in place.
- */
- /** The content-type for the current request */
- const char *content_type; /* Break these out --- we dispatch on 'em */
- /** The handler string that we use to call a handler function */
- const char *handler; /* What we *really* dispatch on */
-
- /** How to encode the data */
- const char *content_encoding;
- /** Array of strings representing the content languages */
- apr_array_header_t *content_languages;
-
- /** variant list validator (if negotiated) */
- char *vlist_validator;
-
- /** If an authentication check was made, this gets set to the user name. */
- char *user;
- /** If an authentication check was made, this gets set to the auth type. */
- char *ap_auth_type;
-
- /** This response can not be cached */
- int no_cache;
- /** There is no local copy of this response */
- int no_local_copy;
-
- /* What object is being requested (either directly, or via include
- * or content-negotiation mapping).
- */
-
- /** The URI without any parsing performed */
- char *unparsed_uri;
- /** The path portion of the URI, or "/" if no path provided */
- char *uri;
- /** The filename on disk corresponding to this response */
- char *filename;
- /* XXX: What does this mean? Please define "canonicalize" -aaron */
- /** The true filename, we canonicalize r->filename if these don't match */
- char *canonical_filename;
- /** The PATH_INFO extracted from this request */
- char *path_info;
- /** The QUERY_ARGS extracted from this request */
- char *args;
- /** finfo.protection (st_mode) set to zero if no such file */
- apr_finfo_t finfo;
- /** A struct containing the components of URI */
- apr_uri_t parsed_uri;
-
- /**
- * Flag for the handler to accept or reject path_info on
- * the current request. All modules should respect the
- * AP_REQ_ACCEPT_PATH_INFO and AP_REQ_REJECT_PATH_INFO
- * values, while AP_REQ_DEFAULT_PATH_INFO indicates they
- * may follow existing conventions. This is set to the
- * user's preference upon HOOK_VERY_FIRST of the fixups.
- */
- int used_path_info;
-
- /* Various other config info which may change with .htaccess files
- * These are config vectors, with one void* pointer for each module
- * (the thing pointed to being the module's business).
- */
-
- /** Options set in config files, etc. */
- struct ap_conf_vector_t *per_dir_config;
- /** Notes on *this* request */
- struct ap_conf_vector_t *request_config;
-
- /**
- * A linked list of the .htaccess configuration directives
- * accessed by this request.
- * N.B. always add to the head of the list, _never_ to the end.
- * that way, a sub request's list can (temporarily) point to a parent's list
- */
- const struct htaccess_result *htaccess;
-
- /** A list of output filters to be used for this request */
- struct ap_filter_t *output_filters;
- /** A list of input filters to be used for this request */
- struct ap_filter_t *input_filters;
-
- /** A list of protocol level output filters to be used for this
- * request */
- struct ap_filter_t *proto_output_filters;
- /** A list of protocol level input filters to be used for this
- * request */
- struct ap_filter_t *proto_input_filters;
-
- /** A flag to determine if the eos bucket has been sent yet */
- int eos_sent;
-
-/* Things placed at the end of the record to avoid breaking binary
- * compatibility. It would be nice to remember to reorder the entire
- * record to improve 64bit alignment the next time we need to break
- * binary compatibility for some other reason.
- */
-};
-
-/**
- * @defgroup ProxyReq Proxy request types
- *
- * Possible values of request_rec->proxyreq. A request could be normal,
- * proxied or reverse proxied. Normally proxied and reverse proxied are
- * grouped together as just "proxied", but sometimes it's necessary to
- * tell the difference between the two, such as for authentication.
- * @{
- */
-
-#define PROXYREQ_NONE 0 /**< No proxy */
-#define PROXYREQ_PROXY 1 /**< Standard proxy */
-#define PROXYREQ_REVERSE 2 /**< Reverse proxy */
-#define PROXYREQ_RESPONSE 3 /**< Origin response */
-
-/* @} */
-
-typedef enum {
- AP_CONN_UNKNOWN,
- AP_CONN_CLOSE,
- AP_CONN_KEEPALIVE
-} ap_conn_keepalive_e;
-
-/** Structure to store things which are per connection */
-struct conn_rec {
- /** Pool associated with this connection */
- apr_pool_t *pool;
- /** Physical vhost this conn came in on */
- server_rec *base_server;
- /** used by http_vhost.c */
- void *vhost_lookup_data;
-
- /* Information about the connection itself */
- /** local address */
- apr_sockaddr_t *local_addr;
- /** remote address */
- apr_sockaddr_t *remote_addr;
-
- /** Client's IP address */
- char *remote_ip;
- /** Client's DNS name, if known. NULL if DNS hasn't been checked,
- * "" if it has and no address was found. N.B. Only access this though
- * get_remote_host() */
- char *remote_host;
- /** Only ever set if doing rfc1413 lookups. N.B. Only access this through
- * get_remote_logname() */
- char *remote_logname;
-
- /** Are we still talking? */
- unsigned aborted:1;
-
- /** Are we going to keep the connection alive for another request?
- * @see ap_conn_keepalive_e */
- ap_conn_keepalive_e keepalive;
-
- /** have we done double-reverse DNS? -1 yes/failure, 0 not yet,
- * 1 yes/success */
- signed int double_reverse:2;
-
- /** How many times have we used it? */
- int keepalives;
- /** server IP address */
- char *local_ip;
- /** used for ap_get_server_name when UseCanonicalName is set to DNS
- * (ignores setting of HostnameLookups) */
- char *local_host;
-
- /** ID of this connection; unique at any point in time */
- long id;
- /** Config vector containing pointers to connections per-server
- * config structures. */
- struct ap_conf_vector_t *conn_config;
- /** Notes on *this* connection: send note from one module to
- * another. must remain valid for all requests on this conn */
- apr_table_t *notes;
- /** A list of input filters to be used for this connection */
- struct ap_filter_t *input_filters;
- /** A list of output filters to be used for this connection */
- struct ap_filter_t *output_filters;
- /** handle to scoreboard information for this connection */
- void *sbh;
- /** The bucket allocator to use for all bucket/brigade creations */
- struct apr_bucket_alloc_t *bucket_alloc;
-};
-
-/* Per-vhost config... */
-
-/**
- * The address 255.255.255.255, when used as a virtualhost address,
- * will become the "default" server when the ip doesn't match other vhosts.
- */
-#define DEFAULT_VHOST_ADDR 0xfffffffful
-
-
-/** A structure to be used for Per-vhost config */
-typedef struct server_addr_rec server_addr_rec;
-struct server_addr_rec {
- /** The next server in the list */
- server_addr_rec *next;
- /** The bound address, for this server */
- apr_sockaddr_t *host_addr;
- /** The bound port, for this server */
- apr_port_t host_port;
- /** The name given in <VirtualHost> */
- char *virthost;
-};
-
-/** A structure to store information for each virtual server */
-struct server_rec {
- /** The process this server is running in */
- process_rec *process;
- /** The next server in the list */
- server_rec *next;
-
- /** The name of the server */
- const char *defn_name;
- /** The line of the config file that the server was defined on */
- unsigned defn_line_number;
-
- /* Contact information */
-
- /** The admin's contact information */
- char *server_admin;
- /** The server hostname */
- char *server_hostname;
- /** for redirects, etc. */
- apr_port_t port;
-
- /* Log files --- note that transfer log is now in the modules... */
-
- /** The name of the error log */
- char *error_fname;
- /** A file descriptor that references the error log */
- apr_file_t *error_log;
- /** The log level for this server */
- int loglevel;
-
- /* Module-specific configuration for server, and defaults... */
-
- /** true if this is the virtual server */
- int is_virtual;
- /** Config vector containing pointers to modules' per-server config
- * structures. */
- struct ap_conf_vector_t *module_config;
- /** MIME type info, etc., before we start checking per-directory info */
- struct ap_conf_vector_t *lookup_defaults;
-
- /* Transaction handling */
-
- /** I haven't got a clue */
- server_addr_rec *addrs;
- /** Timeout, as an apr interval, before we give up */
- apr_interval_time_t timeout;
- /** The apr interval we will wait for another request */
- apr_interval_time_t keep_alive_timeout;
- /** Maximum requests per connection */
- int keep_alive_max;
- /** Use persistent connections? */
- int keep_alive;
-
- /** Pathname for ServerPath */
- const char *path;
- /** Length of path */
- int pathlen;
-
- /** Normal names for ServerAlias servers */
- apr_array_header_t *names;
- /** Wildcarded names for ServerAlias servers */
- apr_array_header_t *wild_names;
-
- /** limit on size of the HTTP request line */
- int limit_req_line;
- /** limit on size of any request header field */
- int limit_req_fieldsize;
- /** limit on number of request header fields */
- int limit_req_fields;
-};
-
-typedef struct core_output_filter_ctx {
- apr_bucket_brigade *b;
- apr_pool_t *deferred_write_pool; /* subpool of c->pool used for resources
- * which may outlive the request
- */
-} core_output_filter_ctx_t;
-
-typedef struct core_filter_ctx {
- apr_bucket_brigade *b;
- apr_bucket_brigade *tmpbb;
-} core_ctx_t;
-
-typedef struct core_net_rec {
- /** Connection to the client */
- apr_socket_t *client_socket;
-
- /** connection record */
- conn_rec *c;
-
- core_output_filter_ctx_t *out_ctx;
- core_ctx_t *in_ctx;
-} core_net_rec;
-
-/**
- * Examine a field value (such as a media-/content-type) string and return
- * it sans any parameters; e.g., strip off any ';charset=foo' and the like.
- * @param p Pool to allocate memory from
- * @param intype The field to examine
- * @return A copy of the field minus any parameters
- */
-AP_DECLARE(char *) ap_field_noparam(apr_pool_t *p, const char *intype);
-
-/**
- * Convert a time from an integer into a string in a specified format
- * @param p The pool to allocate memory from
- * @param t The time to convert
- * @param fmt The format to use for the conversion
- * @param gmt Convert the time for GMT?
- * @return The string that represents the specified time
- */
-AP_DECLARE(char *) ap_ht_time(apr_pool_t *p, apr_time_t t, const char *fmt, int gmt);
-
-/* String handling. The *_nc variants allow you to use non-const char **s as
- arguments (unfortunately C won't automatically convert a char ** to a const
- char **) */
-
-/**
- * Get the characters until the first occurance of a specified character
- * @param p The pool to allocate memory from
- * @param line The string to get the characters from
- * @param stop The character to stop at
- * @return A copy of the characters up to the first stop character
- */
-AP_DECLARE(char *) ap_getword(apr_pool_t *p, const char **line, char stop);
-/**
- * Get the characters until the first occurance of a specified character
- * @param p The pool to allocate memory from
- * @param line The string to get the characters from
- * @param stop The character to stop at
- * @return A copy of the characters up to the first stop character
- * @note This is the same as ap_getword(), except it doesn't use const char **.
- */
-AP_DECLARE(char *) ap_getword_nc(apr_pool_t *p, char **line, char stop);
-
-/**
- * Get the first word from a given string. A word is defined as all characters
- * up to the first whitespace.
- * @param p The pool to allocate memory from
- * @param line The string to traverse
- * @return The first word in the line
- */
-AP_DECLARE(char *) ap_getword_white(apr_pool_t *p, const char **line);
-/**
- * Get the first word from a given string. A word is defined as all characters
- * up to the first whitespace.
- * @param p The pool to allocate memory from
- * @param line The string to traverse
- * @return The first word in the line
- * @note The same as ap_getword_white(), except it doesn't use const char **.
- */
-AP_DECLARE(char *) ap_getword_white_nc(apr_pool_t *p, char **line);
-
-/**
- * Get all characters from the first occurance of @a stop to the first '\0'
- * @param p The pool to allocate memory from
- * @param line The line to traverse
- * @param stop The character to start at
- * @return A copy of all caracters after the first occurance of the specified
- * character
- */
-AP_DECLARE(char *) ap_getword_nulls(apr_pool_t *p, const char **line,
- char stop);
-/**
- * Get all characters from the first occurance of @a stop to the first '\0'
- * @param p The pool to allocate memory from
- * @param line The line to traverse
- * @param stop The character to start at
- * @return A copy of all caracters after the first occurance of the specified
- * character
- * @note The same as ap_getword_nulls(), except it doesn't use const char **.
- */
-AP_DECLARE(char *) ap_getword_nulls_nc(apr_pool_t *p, char **line, char stop);
-
-/**
- * Get the second word in the string paying attention to quoting
- * @param p The pool to allocate from
- * @param line The line to traverse
- * @return A copy of the string
- */
-AP_DECLARE(char *) ap_getword_conf(apr_pool_t *p, const char **line);
-/**
- * Get the second word in the string paying attention to quoting
- * @param p The pool to allocate from
- * @param line The line to traverse
- * @return A copy of the string
- * @note The same as ap_getword_conf(), except it doesn't use const char **.
- */
-AP_DECLARE(char *) ap_getword_conf_nc(apr_pool_t *p, char **line);
-
-/**
- * Check a string for any ${ENV} environment variable construct and replace
- * each them by the value of that environment variable, if it exists. If the
- * environment value does not exist, leave the ${ENV} construct alone; it
- * means something else.
- * @param p The pool to allocate from
- * @param word The string to check
- * @return The string with the replaced environment variables
- */
-AP_DECLARE(const char *) ap_resolve_env(apr_pool_t *p, const char * word);
-
-/**
- * Size an HTTP header field list item, as separated by a comma.
- * @param field The field to size
- * @param len The length of the field
- * @return The return value is a pointer to the beginning of the non-empty
- * list item within the original string (or NULL if there is none) and the
- * address of field is shifted to the next non-comma, non-whitespace
- * character. len is the length of the item excluding any beginning whitespace.
- */
-AP_DECLARE(const char *) ap_size_list_item(const char **field, int *len);
-
-/**
- * Retrieve an HTTP header field list item, as separated by a comma,
- * while stripping insignificant whitespace and lowercasing anything not in
- * a quoted string or comment.
- * @param p The pool to allocate from
- * @param field The field to retrieve
- * @return The return value is a new string containing the converted list
- * item (or NULL if none) and the address pointed to by field is
- * shifted to the next non-comma, non-whitespace.
- */
-AP_DECLARE(char *) ap_get_list_item(apr_pool_t *p, const char **field);
-
-/**
- * Find an item in canonical form (lowercase, no extra spaces) within
- * an HTTP field value list.
- * @param p The pool to allocate from
- * @param line The field value list to search
- * @param tok The token to search for
- * @return 1 if found, 0 if not found.
- */
-AP_DECLARE(int) ap_find_list_item(apr_pool_t *p, const char *line, const char *tok);
-
-/**
- * Retrieve a token, spacing over it and returning a pointer to
- * the first non-white byte afterwards. Note that these tokens
- * are delimited by semis and commas and can also be delimited
- * by whitespace at the caller's option.
- * @param p The pool to allocate from
- * @param accept_line The line to retrieve the token from
- * @param accept_white Is it delimited by whitespace
- * @return the first non-white byte after the token
- */
-AP_DECLARE(char *) ap_get_token(apr_pool_t *p, const char **accept_line, int accept_white);
-
-/**
- * Find http tokens, see the definition of token from RFC2068
- * @param p The pool to allocate from
- * @param line The line to find the token
- * @param tok The token to find
- * @return 1 if the token is found, 0 otherwise
- */
-AP_DECLARE(int) ap_find_token(apr_pool_t *p, const char *line, const char *tok);
-
-/**
- * find http tokens from the end of the line
- * @param p The pool to allocate from
- * @param line The line to find the token
- * @param tok The token to find
- * @return 1 if the token is found, 0 otherwise
- */
-AP_DECLARE(int) ap_find_last_token(apr_pool_t *p, const char *line, const char *tok);
-
-/**
- * Check for an Absolute URI syntax
- * @param u The string to check
- * @return 1 if URI, 0 otherwise
- */
-AP_DECLARE(int) ap_is_url(const char *u);
-
-/**
- * Unescape a URL
- * @param url The url to unescape
- * @return 0 on success, non-zero otherwise
- */
-AP_DECLARE(int) ap_unescape_url(char *url);
-/**
- * Unescape a URL, but leaving %2f (slashes) escaped
- * @param url The url to unescape
- * @return 0 on success, non-zero otherwise
- */
-AP_DECLARE(int) ap_unescape_url_keep2f(char *url);
-/**
- * Convert all double slashes to single slashes
- * @param name The string to convert
- */
-AP_DECLARE(void) ap_no2slash(char *name);
-
-/**
- * Remove all ./ and xx/../ substrings from a file name. Also remove
- * any leading ../ or /../ substrings.
- * @param name the file name to parse
- */
-AP_DECLARE(void) ap_getparents(char *name);
-
-/**
- * Escape a path segment, as defined in RFC 1808
- * @param p The pool to allocate from
- * @param s The path to convert
- * @return The converted URL
- */
-AP_DECLARE(char *) ap_escape_path_segment(apr_pool_t *p, const char *s);
-/**
- * convert an OS path to a URL in an OS dependant way.
- * @param p The pool to allocate from
- * @param path The path to convert
- * @param partial if set, assume that the path will be appended to something
- * with a '/' in it (and thus does not prefix "./")
- * @return The converted URL
- */
-AP_DECLARE(char *) ap_os_escape_path(apr_pool_t *p, const char *path, int partial);
-/** @see ap_os_escape_path */
-#define ap_escape_uri(ppool,path) ap_os_escape_path(ppool,path,1)
-
-/**
- * Escape an html string
- * @param p The pool to allocate from
- * @param s The html to escape
- * @return The escaped string
- */
-AP_DECLARE(char *) ap_escape_html(apr_pool_t *p, const char *s);
-
-/**
- * Escape a string for logging
- * @param p The pool to allocate from
- * @param str The string to escape
- * @return The escaped string
- */
-AP_DECLARE(char *) ap_escape_logitem(apr_pool_t *p, const char *str);
-
-/**
- * Escape a string for logging into the error log (without a pool)
- * @param dest The buffer to write to
- * @param source The string to escape
- * @param buflen The buffer size for the escaped string (including \0)
- * @return The len of the escaped string (always < maxlen)
- */
-AP_DECLARE(apr_size_t) ap_escape_errorlog_item(char *dest, const char *source,
- apr_size_t buflen);
-
-/**
- * Construct a full hostname
- * @param p The pool to allocate from
- * @param hostname The hostname of the server
- * @param port The port the server is running on
- * @param r The current request
- * @return The server's hostname
- */
-AP_DECLARE(char *) ap_construct_server(apr_pool_t *p, const char *hostname,
- apr_port_t port, const request_rec *r);
-/**
- * Escape a shell command
- * @param p The pool to allocate from
- * @param s The command to escape
- * @return The escaped shell command
- */
-AP_DECLARE(char *) ap_escape_shell_cmd(apr_pool_t *p, const char *s);
-
-/**
- * Count the number of directories in a path
- * @param path The path to count
- * @return The number of directories
- */
-AP_DECLARE(int) ap_count_dirs(const char *path);
-
-/**
- * Copy at most @a n leading directories of @a s into @a d. @a d
- * should be at least as large as @a s plus 1 extra byte
- *
- * @param d The location to copy to
- * @param s The location to copy from
- * @param n The number of directories to copy
- * @return value is the ever useful pointer to the trailing \0 of d
- * @note on platforms with drive letters, n = 0 returns the "/" root,
- * whereas n = 1 returns the "d:/" root. On all other platforms, n = 0
- * returns the empty string. */
-AP_DECLARE(char *) ap_make_dirstr_prefix(char *d, const char *s, int n);
-
-/**
- * Return the parent directory name (including trailing /) of the file
- * @a s
- * @param p The pool to allocate from
- * @param s The file to get the parent of
- * @return A copy of the file's parent directory
- */
-AP_DECLARE(char *) ap_make_dirstr_parent(apr_pool_t *p, const char *s);
-
-/**
- * Given a directory and filename, create a single path from them. This
- * function is smart enough to ensure that there is a sinlge '/' between the
- * directory and file names
- * @param a The pool to allocate from
- * @param dir The directory name
- * @param f The filename
- * @return A copy of the full path
- * @tip Never consider using this function if you are dealing with filesystem
- * names that need to remain canonical, unless you are merging an apr_dir_read
- * path and returned filename. Otherwise, the result is not canonical.
- */
-AP_DECLARE(char *) ap_make_full_path(apr_pool_t *a, const char *dir, const char *f);
-
-/**
- * Test if the given path has an an absolute path.
- * @param p The pool to allocate from
- * @param dir The directory name
- * @tip The converse is not necessarily true, some OS's (Win32/OS2/Netware) have
- * multiple forms of absolute paths. This only reports if the path is absolute
- * in a canonical sense.
- */
-AP_DECLARE(int) ap_os_is_path_absolute(apr_pool_t *p, const char *dir);
-
-/**
- * Does the provided string contain wildcard characters? This is useful
- * for determining if the string should be passed to strcmp_match or to strcmp.
- * The only wildcard characters recognized are '?' and '*'
- * @param str The string to check
- * @return 1 if the string has wildcards, 0 otherwise
- */
-AP_DECLARE(int) ap_is_matchexp(const char *str);
-
-/**
- * Determine if a string matches a patterm containing the wildcards '?' or '*'
- * @param str The string to check
- * @param expected The pattern to match against
- * @return 1 if the two strings match, 0 otherwise
- */
-AP_DECLARE(int) ap_strcmp_match(const char *str, const char *expected);
-/**
- * Determine if a string matches a patterm containing the wildcards '?' or '*',
- * ignoring case
- * @param str The string to check
- * @param expected The pattern to match against
- * @return 1 if the two strings match, 0 otherwise
- */
-AP_DECLARE(int) ap_strcasecmp_match(const char *str, const char *expected);
-
-/**
- * Find the first occurrence of the substring s2 in s1, regardless of case
- * @param s1 The string to search
- * @param s2 The substring to search for
- * @return A pointer to the beginning of the substring
- * @remark See apr_strmatch() for a faster alternative
- */
-AP_DECLARE(char *) ap_strcasestr(const char *s1, const char *s2);
-
-/**
- * Return a pointer to the location inside of bigstring immediately after prefix
- * @param bigstring The input string
- * @param prefix The prefix to strip away
- * @return A pointer relative to bigstring after prefix
- */
-AP_DECLARE(const char *) ap_stripprefix(const char *bigstring,
- const char *prefix);
-
-/**
- * Decode a base64 encoded string into memory allocated from a pool
- * @param p The pool to allocate from
- * @param bufcoded The encoded string
- * @return The decoded string
- */
-AP_DECLARE(char *) ap_pbase64decode(apr_pool_t *p, const char *bufcoded);
-
-/**
- * Encode a string into memory allocated from a pool in base 64 format
- * @param p The pool to allocate from
- * @param strin The plaintext string
- * @return The encoded string
- */
-AP_DECLARE(char *) ap_pbase64encode(apr_pool_t *p, char *string);
-
-
-/**
- * Compile a regular expression to be used later
- * @param p The pool to allocate from
- * @param pattern the regular expression to compile
- * @param cflags The bitwise or of one or more of the following:
- * @li #REG_EXTENDED - Use POSIX extended Regular Expressions
- * @li #REG_ICASE - Ignore case
- * @li #REG_NOSUB - Support for substring addressing of matches
- * not required
- * @li #REG_NEWLINE - Match-any-character operators don't match new-line
- * @return The compiled regular expression
- */
-AP_DECLARE(regex_t *) ap_pregcomp(apr_pool_t *p, const char *pattern,
- int cflags);
-
-/**
- * Free the memory associated with a compiled regular expression
- * @param p The pool the regex was allocated from
- * @param reg The regular expression to free
- */
-AP_DECLARE(void) ap_pregfree(apr_pool_t *p, regex_t *reg);
-
-/**
- * Match a null-terminated string against a pre-compiled regex.
- * @param preg The pre-compiled regex
- * @param string The string to match
- * @param nmatch Provide information regarding the location of any matches
- * @param pmatch Provide information regarding the location of any matches
- * @param eflags Bitwise or of any of:
- * @li #REG_NOTBOL - match-beginning-of-line operator always
- * fails to match
- * @li #REG_NOTEOL - match-end-of-line operator always fails to match
- * @return 0 for successful match, #REG_NOMATCH otherwise
- */
-AP_DECLARE(int) ap_regexec(regex_t *preg, const char *string,
- size_t nmatch, regmatch_t pmatch[], int eflags);
-
-/**
- * Return the error code returned by regcomp or regexec into error messages
- * @param errcode the error code returned by regexec or regcomp
- * @param preg The precompiled regex
- * @param errbuf A buffer to store the error in
- * @param errbuf_size The size of the buffer
- */
-AP_DECLARE(size_t) ap_regerror(int errcode, const regex_t *preg,
- char *errbuf, size_t errbuf_size);
-
-/**
- * After performing a successful regex match, you may use this function to
- * perform a series of string substitutions based on subexpressions that were
- * matched during the call to ap_regexec
- * @param p The pool to allocate from
- * @param input An arbitrary string containing $1 through $9. These are
- * replaced with the corresponding matched sub-expressions
- * @param source The string that was originally matched to the regex
- * @param nmatch the nmatch returned from ap_pregex
- * @param pmatch the pmatch array returned from ap_pregex
- */
-AP_DECLARE(char *) ap_pregsub(apr_pool_t *p, const char *input, const char *source,
- size_t nmatch, regmatch_t pmatch[]);
-
-/**
- * We want to downcase the type/subtype for comparison purposes
- * but nothing else because ;parameter=foo values are case sensitive.
- * @param s The content-type to convert to lowercase
- */
-AP_DECLARE(void) ap_content_type_tolower(char *s);
-
-/**
- * convert a string to all lowercase
- * @param s The string to convert to lowercase
- */
-AP_DECLARE(void) ap_str_tolower(char *s);
-
-/**
- * Search a string from left to right for the first occurrence of a
- * specific character
- * @param str The string to search
- * @param c The character to search for
- * @return The index of the first occurrence of c in str
- */
-AP_DECLARE(int) ap_ind(const char *str, char c); /* Sigh... */
-
-/**
- * Search a string from right to left for the first occurrence of a
- * specific character
- * @param str The string to search
- * @param c The character to search for
- * @return The index of the first occurrence of c in str
- */
-AP_DECLARE(int) ap_rind(const char *str, char c);
-
-/**
- * Given a string, replace any bare " with \" .
- * @param p The pool to allocate memory from
- * @param instring The string to search for "
- * @return A copy of the string with escaped quotes
- */
-AP_DECLARE(char *) ap_escape_quotes(apr_pool_t *p, const char *instring);
-
-/* Misc system hackery */
-/**
- * Given the name of an object in the file system determine if it is a directory
- * @param p The pool to allocate from
- * @param name The name of the object to check
- * @return 1 if it is a directory, 0 otherwise
- */
-AP_DECLARE(int) ap_is_rdirectory(apr_pool_t *p, const char *name);
-
-/**
- * Given the name of an object in the file system determine if it is a directory - this version is symlink aware
- * @param p The pool to allocate from
- * @param name The name of the object to check
- * @return 1 if it is a directory, 0 otherwise
- */
-AP_DECLARE(int) ap_is_directory(apr_pool_t *p, const char *name);
-
-#ifdef _OSD_POSIX
-extern const char *os_set_account(apr_pool_t *p, const char *account);
-extern int os_init_job_environment(server_rec *s, const char *user_name, int one_process);
-#endif /* _OSD_POSIX */
-
-/**
- * Determine the local host name for the current machine
- * @param p The pool to allocate from
- * @return A copy of the local host name
- */
-char *ap_get_local_host(apr_pool_t *p);
-
-/**
- * Log an assertion to the error log
- * @param szExp The assertion that failed
- * @param szFile The file the assertion is in
- * @param nLine The line the assertion is defined on
- */
-AP_DECLARE(void) ap_log_assert(const char *szExp, const char *szFile, int nLine)
- __attribute__((noreturn));
-
-/** @internal */
-#define ap_assert(exp) ((exp) ? (void)0 : ap_log_assert(#exp,__FILE__,__LINE__))
-
-/**
- * Redefine assert() to something more useful for an Apache...
- *
- * Use ap_assert() if the condition should always be checked.
- * Use AP_DEBUG_ASSERT() if the condition should only be checked when AP_DEBUG
- * is defined.
- */
-
-#ifdef AP_DEBUG
-#define AP_DEBUG_ASSERT(exp) ap_assert(exp)
-#else
-#define AP_DEBUG_ASSERT(exp) ((void)0)
-#endif
-
-/**
- * @defgroup stopsignal flags which indicate places where the sever should stop for debugging.
- * @{
- * A set of flags which indicate places where the server should raise(SIGSTOP).
- * This is useful for debugging, because you can then attach to that process
- * with gdb and continue. This is important in cases where one_process
- * debugging isn't possible.
- */
-/** stop on a Detach */
-#define SIGSTOP_DETACH 1
-/** stop making a child process */
-#define SIGSTOP_MAKE_CHILD 2
-/** stop spawning a child process */
-#define SIGSTOP_SPAWN_CHILD 4
-/** stop spawning a child process with a piped log */
-#define SIGSTOP_PIPED_LOG_SPAWN 8
-/** stop spawning a CGI child process */
-#define SIGSTOP_CGI_CHILD 16
-
-/** Macro to get GDB started */
-#ifdef DEBUG_SIGSTOP
-extern int raise_sigstop_flags;
-#define RAISE_SIGSTOP(x) do { \
- if (raise_sigstop_flags & SIGSTOP_##x) raise(SIGSTOP);\
- } while (0)
-#else
-#define RAISE_SIGSTOP(x)
-#endif
-/** @} */
-/**
- * Get HTML describing the address and (optionally) admin of the server.
- * @param prefix Text which is prepended to the return value
- * @param r The request_rec
- * @return HTML describing the server, allocated in @a r's pool.
- */
-AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r);
-
-/** strtoul does not exist on sunos4. */
-#ifdef strtoul
-#undef strtoul
-#endif
-#define strtoul strtoul_is_not_a_portable_function_use_strtol_instead
-
- /* The C library has functions that allow const to be silently dropped ...
- these macros detect the drop in maintainer mode, but use the native
- methods for normal builds
-
- Note that on some platforms (e.g., AIX with gcc, Solaris with gcc), string.h needs
- to be included before the macros are defined or compilation will fail.
- */
-#include <string.h>
-
-AP_DECLARE(char *) ap_strchr(char *s, int c);
-AP_DECLARE(const char *) ap_strchr_c(const char *s, int c);
-AP_DECLARE(char *) ap_strrchr(char *s, int c);
-AP_DECLARE(const char *) ap_strrchr_c(const char *s, int c);
-AP_DECLARE(char *) ap_strstr(char *s, const char *c);
-AP_DECLARE(const char *) ap_strstr_c(const char *s, const char *c);
-
-#ifdef AP_DEBUG
-
-#undef strchr
-# define strchr(s, c) ap_strchr(s,c)
-#undef strrchr
-# define strrchr(s, c) ap_strrchr(s,c)
-#undef strstr
-# define strstr(s, c) ap_strstr(s,c)
-
-#else
-
-/** use this instead of strchr */
-# define ap_strchr(s, c) strchr(s, c)
-/** use this instead of strchr */
-# define ap_strchr_c(s, c) strchr(s, c)
-/** use this instead of strrchr */
-# define ap_strrchr(s, c) strrchr(s, c)
-/** use this instead of strrchr */
-# define ap_strrchr_c(s, c) strrchr(s, c)
-/** use this instead of strrstr*/
-# define ap_strstr(s, c) strstr(s, c)
-/** use this instead of strrstr*/
-# define ap_strstr_c(s, c) strstr(s, c)
-
-#endif
-
-#define AP_NORESTART APR_OS_START_USEERR + 1
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* !APACHE_HTTPD_H */