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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* @brief Apache Configuration
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* @defgroup APACHE_CORE_CONFIG Configuration
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* @ingroup APACHE_CORE
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#ifndef APACHE_HTTP_CONFIG_H
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#define APACHE_HTTP_CONFIG_H
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#include "util_cfgtree.h"
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#include "ap_config.h"
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#include "apr_tables.h"
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* The central data structures around here...
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/* Command dispatch structures... */
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* How the directives arguments should be parsed.
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* @remark Note that for all of these except RAW_ARGS, the config routine is
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* passed a freshly allocated string which can be modified or stored
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RAW_ARGS, /**< cmd_func parses command line itself */
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TAKE1, /**< one argument only */
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TAKE2, /**< two arguments only */
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ITERATE, /**< one argument, occuring multiple times
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ITERATE2, /**< two arguments, 2nd occurs multiple times
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FLAG, /**< One of 'On' or 'Off' */
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NO_ARGS, /**< No args at all, e.g. </Directory> */
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TAKE12, /**< one or two arguments */
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TAKE3, /**< three arguments only */
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TAKE23, /**< two or three arguments */
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TAKE123, /**< one, two or three arguments */
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TAKE13, /**< one or three arguments */
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TAKE_ARGV /**< an argc and argv are passed */
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* This structure is passed to a command which is being invoked,
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* to carry a large variety of miscellaneous data which is all of
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* use to *somebody*...
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typedef struct cmd_parms_struct cmd_parms;
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#if defined(AP_HAVE_DESIGNATED_INITIALIZER) || defined(DOXYGEN)
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* All the types of functions that can be used in directives
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/** function to call for a no-args */
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const char *(*no_args) (cmd_parms *parms, void *mconfig);
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/** function to call for a raw-args */
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const char *(*raw_args) (cmd_parms *parms, void *mconfig,
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/** function to call for a argv/argc */
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const char *(*take_argv) (cmd_parms *parms, void *mconfig,
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int argc, char *const argv[]);
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/** function to call for a take1 */
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const char *(*take1) (cmd_parms *parms, void *mconfig, const char *w);
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/** function to call for a take2 */
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const char *(*take2) (cmd_parms *parms, void *mconfig, const char *w,
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/** function to call for a take3 */
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const char *(*take3) (cmd_parms *parms, void *mconfig, const char *w,
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const char *w2, const char *w3);
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/** function to call for a flag */
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const char *(*flag) (cmd_parms *parms, void *mconfig, int on);
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/** This configuration directive does not take any arguments */
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# define AP_NO_ARGS func.no_args
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/** This configuration directive will handle its own parsing of arguments*/
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# define AP_RAW_ARGS func.raw_args
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/** This configuration directive will handle its own parsing of arguments*/
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# define AP_TAKE_ARGV func.take_argv
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/** This configuration directive takes 1 argument*/
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# define AP_TAKE1 func.take1
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/** This configuration directive takes 2 arguments */
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# define AP_TAKE2 func.take2
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/** This configuration directive takes 3 arguments */
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# define AP_TAKE3 func.take3
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/** This configuration directive takes a flag (on/off) as a argument*/
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# define AP_FLAG func.flag
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/** mechanism for declaring a directive with no arguments */
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# define AP_INIT_NO_ARGS(directive, func, mconfig, where, help) \
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{ directive, { .no_args=func }, mconfig, where, RAW_ARGS, help }
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/** mechanism for declaring a directive with raw argument parsing */
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# define AP_INIT_RAW_ARGS(directive, func, mconfig, where, help) \
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{ directive, { .raw_args=func }, mconfig, where, RAW_ARGS, help }
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/** mechanism for declaring a directive with raw argument parsing */
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# define AP_INIT_TAKE_ARGV(directive, func, mconfig, where, help) \
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{ directive, { .take_argv=func }, mconfig, where, TAKE_ARGV, help }
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/** mechanism for declaring a directive which takes 1 argument */
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# define AP_INIT_TAKE1(directive, func, mconfig, where, help) \
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{ directive, { .take1=func }, mconfig, where, TAKE1, help }
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/** mechanism for declaring a directive which takes multiple arguments */
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# define AP_INIT_ITERATE(directive, func, mconfig, where, help) \
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{ directive, { .take1=func }, mconfig, where, ITERATE, help }
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/** mechanism for declaring a directive which takes 2 arguments */
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# define AP_INIT_TAKE2(directive, func, mconfig, where, help) \
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{ directive, { .take2=func }, mconfig, where, TAKE2, help }
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/** mechanism for declaring a directive which takes 1 or 2 arguments */
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# define AP_INIT_TAKE12(directive, func, mconfig, where, help) \
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{ directive, { .take2=func }, mconfig, where, TAKE12, help }
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/** mechanism for declaring a directive which takes multiple 2 arguments */
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# define AP_INIT_ITERATE2(directive, func, mconfig, where, help) \
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{ directive, { .take2=func }, mconfig, where, ITERATE2, help }
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/** mechanism for declaring a directive which takes 1 or 3 arguments */
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# define AP_INIT_TAKE13(directive, func, mconfig, where, help) \
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{ directive, { .take3=func }, mconfig, where, TAKE13, help }
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/** mechanism for declaring a directive which takes 2 or 3 arguments */
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# define AP_INIT_TAKE23(directive, func, mconfig, where, help) \
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{ directive, { .take3=func }, mconfig, where, TAKE23, help }
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/** mechanism for declaring a directive which takes 1 to 3 arguments */
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# define AP_INIT_TAKE123(directive, func, mconfig, where, help) \
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{ directive, { .take3=func }, mconfig, where, TAKE123, help }
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/** mechanism for declaring a directive which takes 3 arguments */
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# define AP_INIT_TAKE3(directive, func, mconfig, where, help) \
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{ directive, { .take3=func }, mconfig, where, TAKE3, help }
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/** mechanism for declaring a directive which takes a flag (on/off) argument */
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# define AP_INIT_FLAG(directive, func, mconfig, where, help) \
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{ directive, { .flag=func }, mconfig, where, FLAG, help }
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#else /* AP_HAVE_DESIGNATED_INITIALIZER */
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typedef const char *(*cmd_func) ();
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# define AP_NO_ARGS func
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# define AP_RAW_ARGS func
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# define AP_TAKE_ARGV func
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# define AP_TAKE1 func
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# define AP_TAKE2 func
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# define AP_TAKE3 func
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# define AP_FLAG func
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# define AP_INIT_NO_ARGS(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, RAW_ARGS, help }
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# define AP_INIT_RAW_ARGS(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, RAW_ARGS, help }
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# define AP_INIT_TAKE_ARGV(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE_ARGV, help }
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# define AP_INIT_TAKE1(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE1, help }
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# define AP_INIT_ITERATE(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, ITERATE, help }
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# define AP_INIT_TAKE2(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE2, help }
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# define AP_INIT_TAKE12(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE12, help }
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# define AP_INIT_ITERATE2(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, ITERATE2, help }
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# define AP_INIT_TAKE13(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE13, help }
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# define AP_INIT_TAKE23(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE23, help }
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# define AP_INIT_TAKE123(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE123, help }
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# define AP_INIT_TAKE3(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, TAKE3, help }
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# define AP_INIT_FLAG(directive, func, mconfig, where, help) \
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{ directive, func, mconfig, where, FLAG, help }
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#endif /* AP_HAVE_DESIGNATED_INITIALIZER */
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* The command record structure. Each modules can define a table of these
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* to define the directives it will implement.
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typedef struct command_struct command_rec;
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struct command_struct {
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/** Name of this command */
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/** The function to be called when this directive is parsed */
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/** Extra data, for functions which implement multiple commands... */
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/** What overrides need to be allowed to enable this command. */
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/** What the command expects as arguments */
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enum cmd_how args_how;
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/** 'usage' message, in case of syntax errors */
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* @defgroup ConfigDirectives Allowed locations for configuration directives.
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* The allowed locations for a configuration directive are the union of
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* those indicated by each set bit in the req_override mask.
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#define OR_NONE 0 /**< *.conf is not available anywhere in this override */
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#define OR_LIMIT 1 /**< *.conf inside <Directory> or <Location>
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and .htaccess when AllowOverride Limit */
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#define OR_OPTIONS 2 /**< *.conf anywhere
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and .htaccess when AllowOverride Options */
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#define OR_FILEINFO 4 /**< *.conf anywhere
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and .htaccess when AllowOverride FileInfo */
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#define OR_AUTHCFG 8 /**< *.conf inside <Directory> or <Location>
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and .htaccess when AllowOverride AuthConfig */
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#define OR_INDEXES 16 /**< *.conf anywhere
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and .htaccess when AllowOverride Indexes */
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#define OR_UNSET 32 /**< bit to indicate that AllowOverride has not been set */
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#define ACCESS_CONF 64 /**< *.conf inside <Directory> or <Location> */
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#define RSRC_CONF 128 /**< *.conf outside <Directory> or <Location> */
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#define EXEC_ON_READ 256 /**< force directive to execute a command
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which would modify the configuration (like including another
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/* Flags to determine whether syntax errors in .htaccess should be
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* treated as nonfatal (log and ignore errors)
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#define NONFATAL_OVERRIDE 512 /* Violation of AllowOverride rule */
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#define NONFATAL_UNKNOWN 1024 /* Unrecognised directive */
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#define NONFATAL_ALL (NONFATAL_OVERRIDE|NONFATAL_UNKNOWN)
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/** this directive can be placed anywhere */
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#define OR_ALL (OR_LIMIT|OR_OPTIONS|OR_FILEINFO|OR_AUTHCFG|OR_INDEXES)
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* This can be returned by a function if they don't wish to handle
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* a command. Make it something not likely someone will actually use
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#define DECLINE_CMD "\a\b"
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/** Common structure for reading of config files / passwd files etc. */
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typedef struct ap_configfile_t ap_configfile_t;
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struct ap_configfile_t {
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/**< an apr_file_getc()-like function */
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apr_status_t (*getch) (char *ch, void *param);
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/**< an apr_file_gets()-like function */
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apr_status_t (*getstr) (void *buf, apr_size_t bufsiz, void *param);
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/**< a close handler function */
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apr_status_t (*close) (void *param);
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/**< the argument passed to getch/getstr/close */
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/**< the filename / description */
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/**< current line number, starting at 1 */
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unsigned line_number;
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* This structure is passed to a command which is being invoked,
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* to carry a large variety of miscellaneous data which is all of
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* use to *somebody*...
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struct cmd_parms_struct {
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/** Argument to command from cmd_table */
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/** Which allow-override bits are set */
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/** Which allow-override-opts bits are set */
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/** Table of directives allowed per AllowOverrideList */
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apr_table_t *override_list;
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/** Which methods are <Limit>ed */
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/** methods which are limited */
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apr_array_header_t *limited_xmethods;
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/** methods which are xlimited */
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ap_method_list_t *xlimited;
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/** Config file structure. */
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ap_configfile_t *config_file;
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/** the directive specifying this command */
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ap_directive_t *directive;
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/** Pool to allocate new storage in */
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/** Pool for scratch memory; persists during configuration, but
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* wiped before the first request is served... */
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apr_pool_t *temp_pool;
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/** Server_rec being configured for */
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/** If configuring for a directory, pathname of that directory.
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* NOPE! That's what it meant previous to the existence of <Files>,
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* <Location> and regex matching. Now the only usefulness that can be
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* derived from this field is whether a command is being called in a
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* server context (path == NULL) or being called in a dir context
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/** configuration command */
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const command_rec *cmd;
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/** per_dir_config vector passed to handle_command */
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struct ap_conf_vector_t *context;
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/** directive with syntax error */
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const ap_directive_t *err_directive;
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* Module structures. Just about everything is dispatched through
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* these, directly or indirectly (through the command and handler
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typedef struct module_struct module;
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struct module_struct {
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/** API version, *not* module version; check that module is
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* compatible with this version of the server.
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/** API minor version. Provides API feature milestones. Not checked
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* during module init */
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/** Index to this modules structures in config vectors. */
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/** The name of the module's C file */
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/** The handle for the DSO. Internal use only */
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void *dynamic_load_handle;
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/** A pointer to the next module in the list
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* @var module_struct *next
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struct module_struct *next;
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/** Magic Cookie to identify a module structure; It's mainly
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* important for the DSO facility (see also mod_so). */
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/** Function to allow MPMs to re-write command line arguments. This
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* hook is only available to MPMs.
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* @param The process that the server is running in.
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void (*rewrite_args) (process_rec *process);
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/** Function to allow all modules to create per directory configuration
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* @param p The pool to use for all allocations.
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* @param dir The directory currently being processed.
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* @return The per-directory structure created
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void *(*create_dir_config) (apr_pool_t *p, char *dir);
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/** Function to allow all modules to merge the per directory configuration
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* structures for two directories.
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* @param p The pool to use for all allocations.
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* @param base_conf The directory structure created for the parent directory.
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* @param new_conf The directory structure currently being processed.
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* @return The new per-directory structure created
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void *(*merge_dir_config) (apr_pool_t *p, void *base_conf, void *new_conf);
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/** Function to allow all modules to create per server configuration
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* @param p The pool to use for all allocations.
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* @param s The server currently being processed.
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* @return The per-server structure created
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void *(*create_server_config) (apr_pool_t *p, server_rec *s);
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/** Function to allow all modules to merge the per server configuration
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* structures for two servers.
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* @param p The pool to use for all allocations.
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* @param base_conf The directory structure created for the parent directory.
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* @param new_conf The directory structure currently being processed.
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* @return The new per-directory structure created
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void *(*merge_server_config) (apr_pool_t *p, void *base_conf,
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/** A command_rec table that describes all of the directives this module
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const command_rec *cmds;
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/** A hook to allow modules to hook other points in the request processing.
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* In this function, modules should call the ap_hook_*() functions to
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* register an interest in a specific step in processing the current
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* @param p the pool to use for all allocations
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void (*register_hooks) (apr_pool_t *p);
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* The APLOG_USE_MODULE macro is used choose which module a file belongs to.
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* This is necessary to allow per-module loglevel configuration.
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* APLOG_USE_MODULE indirectly sets APLOG_MODULE_INDEX and APLOG_MARK.
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* If a module should be backward compatible with versions before 2.3.6,
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* APLOG_USE_MODULE needs to be enclosed in a ifdef APLOG_USE_MODULE block.
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* @param foo name of the module symbol of the current module, without the
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* trailing "_module" part
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#define APLOG_USE_MODULE(foo) \
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extern module AP_MODULE_DECLARE_DATA foo##_module; \
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static int * const aplog_module_index = &(foo##_module.module_index)
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* AP_DECLARE_MODULE is a convenience macro that combines a call of
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* APLOG_USE_MODULE with the definition of the module symbol.
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* If a module should be backward compatible with versions before 2.3.6,
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* APLOG_USE_MODULE should be used explicitly instead of AP_DECLARE_MODULE.
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#define AP_DECLARE_MODULE(foo) \
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APLOG_USE_MODULE(foo); \
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module AP_MODULE_DECLARE_DATA foo##_module
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* @defgroup ModuleInit Module structure initializers
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* Initializer for the first few module slots, which are only
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* really set up once we start running. Note that the first two slots
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* provide a version check; this should allow us to deal with changes to
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* the API. The major number should reflect changes to the API handler table
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* itself or removal of functionality. The minor number should reflect
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* additions of functionality to the existing API. (the server can detect
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* an old-format module, and either handle it back-compatibly, or at least
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* signal an error). See src/include/ap_mmn.h for MMN version history.
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/** The one used in Apache 1.3, which will deliberately cause an error */
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#define STANDARD_MODULE_STUFF this_module_needs_to_be_ported_to_apache_2_0
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/** Use this in all standard modules */
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#define STANDARD20_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \
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MODULE_MAGIC_NUMBER_MINOR, \
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MODULE_MAGIC_COOKIE, \
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NULL /* rewrite args spot */
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/** Use this only in MPMs */
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#define MPM20_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \
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MODULE_MAGIC_NUMBER_MINOR, \
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/* CONFIGURATION VECTOR FUNCTIONS */
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/** configuration vector structure */
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typedef struct ap_conf_vector_t ap_conf_vector_t;
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* Generic accessors for other modules to get at their own module-specific
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* @param cv The vector in which the modules configuration is stored.
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* usually r->per_dir_config or s->module_config
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* @param m The module to get the data for.
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* @return The module-specific data
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AP_DECLARE(void *) ap_get_module_config(const ap_conf_vector_t *cv,
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* Generic accessors for other modules to set at their own module-specific
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* @param cv The vector in which the modules configuration is stored.
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* usually r->per_dir_config or s->module_config
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* @param m The module to set the data for.
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* @param val The module-specific data to set
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AP_DECLARE(void) ap_set_module_config(ap_conf_vector_t *cv, const module *m,
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#if !defined(AP_DEBUG)
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#define ap_get_module_config(v,m) \
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(((void **)(v))[(m)->module_index])
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#define ap_set_module_config(v,m,val) \
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((((void **)(v))[(m)->module_index]) = (val))
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#endif /* AP_DEBUG */
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* Generic accessor for modules to get the module-specific loglevel
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* @param s The server from which to get the loglevel.
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* @param index The module_index of the module to get the loglevel for.
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* @return The module-specific loglevel
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AP_DECLARE(int) ap_get_server_module_loglevel(const server_rec *s, int index);
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* Generic accessor for modules the module-specific loglevel
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* @param c The connection from which to get the loglevel.
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* @param index The module_index of the module to get the loglevel for.
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* @return The module-specific loglevel
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AP_DECLARE(int) ap_get_conn_module_loglevel(const conn_rec *c, int index);
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* Generic accessor for modules the module-specific loglevel
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* @param c The connection from which to get the loglevel.
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* @param s The server from which to get the loglevel if c does not have a
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* specific loglevel configuration.
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* @param index The module_index of the module to get the loglevel for.
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* @return The module-specific loglevel
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AP_DECLARE(int) ap_get_conn_server_module_loglevel(const conn_rec *c,
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* Generic accessor for modules to get the module-specific loglevel
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* @param r The request from which to get the loglevel.
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* @param index The module_index of the module to get the loglevel for.
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* @return The module-specific loglevel
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AP_DECLARE(int) ap_get_request_module_loglevel(const request_rec *r, int index);
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* Accessor to set module-specific loglevel
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* @param l The ap_logconf struct to modify.
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* @param index The module_index of the module to set the loglevel for.
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* @param level The new log level
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AP_DECLARE(void) ap_set_module_loglevel(apr_pool_t *p, struct ap_logconf *l,
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int index, int level);
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#if !defined(AP_DEBUG)
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#define ap_get_conn_logconf(c) \
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((c)->log ? (c)->log : \
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&(c)->base_server->log)
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#define ap_get_conn_server_logconf(c,s) \
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( ( (c)->log != &(c)->base_server->log && (c)->log != NULL ) ? \
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#define ap_get_request_logconf(r) \
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((r)->log ? (r)->log : \
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(r)->connection->log ? (r)->connection->log : \
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#define ap_get_module_loglevel(l,i) \
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(((i) < 0 || (l)->module_levels == NULL || (l)->module_levels[i] < 0) ? \
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(l)->module_levels[i])
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#define ap_get_server_module_loglevel(s,i) \
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(ap_get_module_loglevel(&(s)->log,i))
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#define ap_get_conn_module_loglevel(c,i) \
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(ap_get_module_loglevel(ap_get_conn_logconf(c),i))
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#define ap_get_conn_server_module_loglevel(c,s,i) \
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(ap_get_module_loglevel(ap_get_conn_server_logconf(c,s),i))
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#define ap_get_request_module_loglevel(r,i) \
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(ap_get_module_loglevel(ap_get_request_logconf(r),i))
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#endif /* AP_DEBUG */
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* Set all module-specific loglevels to val
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* @param l The log config for which to set the loglevels.
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* @param val the value to set all loglevels to
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AP_DECLARE(void) ap_reset_module_loglevels(struct ap_logconf *l, int val);
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* Generic command handling function for strings
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* @param cmd The command parameters for this directive
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* @param struct_ptr pointer into a given type
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* @param arg The argument to the directive
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* @return An error string or NULL on success
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AP_DECLARE_NONSTD(const char *) ap_set_string_slot(cmd_parms *cmd,
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* Generic command handling function for integers
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* @param cmd The command parameters for this directive
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* @param struct_ptr pointer into a given type
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* @param arg The argument to the directive
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* @return An error string or NULL on success
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AP_DECLARE_NONSTD(const char *) ap_set_int_slot(cmd_parms *cmd,
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* Parsing function for log level
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* @param str The string to parse
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* @param val The parsed log level
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* @return An error string or NULL on success
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AP_DECLARE(const char *) ap_parse_log_level(const char *str, int *val);
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* Return true if the specified method is limited by being listed in
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* a <Limit> container, or by *not* being listed in a <LimitExcept>
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* @param method Pointer to a string specifying the method to check.
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* @param cmd Pointer to the cmd_parms structure passed to the
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* @return 0 if the method is not limited in the current scope
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AP_DECLARE(int) ap_method_is_limited(cmd_parms *cmd, const char *method);
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* Generic command handling function for strings, always sets the value
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* to a lowercase string
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* @param cmd The command parameters for this directive
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* @param struct_ptr pointer into a given type
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* @param arg The argument to the directive
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* @return An error string or NULL on success
653
AP_DECLARE_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *cmd,
657
* Generic command handling function for flags stored in an int
658
* @param cmd The command parameters for this directive
659
* @param struct_ptr pointer into a given type
660
* @param arg The argument to the directive (either 1 or 0)
661
* @return An error string or NULL on success
663
AP_DECLARE_NONSTD(const char *) ap_set_flag_slot(cmd_parms *cmd,
667
* Generic command handling function for flags stored in a char
668
* @param cmd The command parameters for this directive
669
* @param struct_ptr pointer into a given type
670
* @param arg The argument to the directive (either 1 or 0)
671
* @return An error string or NULL on success
673
AP_DECLARE_NONSTD(const char *) ap_set_flag_slot_char(cmd_parms *cmd,
677
* Generic command handling function for files
678
* @param cmd The command parameters for this directive
679
* @param struct_ptr pointer into a given type
680
* @param arg The argument to the directive
681
* @return An error string or NULL on success
683
AP_DECLARE_NONSTD(const char *) ap_set_file_slot(cmd_parms *cmd,
687
* Generic command handling function to respond with cmd->help as an error
688
* @param cmd The command parameters for this directive
689
* @param struct_ptr pointer into a given type
690
* @param arg The argument to the directive
691
* @return The cmd->help value as the error string
692
* @note This allows simple declarations such as:
694
* AP_INIT_RAW_ARGS("Foo", ap_set_deprecated, NULL, OR_ALL,
695
* "The Foo directive is no longer supported, use Bar"),
698
AP_DECLARE_NONSTD(const char *) ap_set_deprecated(cmd_parms *cmd,
702
* For modules which need to read config files, open logs, etc. this returns
703
* the canonical form of fname made absolute to ap_server_root.
704
* @param p pool to allocate data from
705
* @param fname The file name
707
AP_DECLARE(char *) ap_server_root_relative(apr_pool_t *p, const char *fname);
709
/* Finally, the hook for dynamically loading modules in... */
712
* Add a module to the server
713
* @param m The module structure of the module to add
714
* @param p The pool of the same lifetime as the module
715
* @param s The module's symbol name (used for logging)
717
AP_DECLARE(const char *) ap_add_module(module *m, apr_pool_t *p,
721
* Remove a module from the server. There are some caveats:
722
* when the module is removed, its slot is lost so all the current
723
* per-dir and per-server configurations are invalid. So we should
724
* only ever call this function when you are invalidating almost
725
* all our current data. I.e. when doing a restart.
726
* @param m the module structure of the module to remove
728
AP_DECLARE(void) ap_remove_module(module *m);
730
* Add a module to the chained modules list and the list of loaded modules
731
* @param mod The module structure of the module to add
732
* @param p The pool with the same lifetime as the module
733
* @param s The module's symbol name (used for logging)
735
AP_DECLARE(const char *) ap_add_loaded_module(module *mod, apr_pool_t *p,
738
* Remove a module fromthe chained modules list and the list of loaded modules
739
* @param mod the module structure of the module to remove
741
AP_DECLARE(void) ap_remove_loaded_module(module *mod);
743
* Find the name of the specified module
744
* @param m The module to get the name for
745
* @return the name of the module
747
AP_DECLARE(const char *) ap_find_module_name(module *m);
749
* Find the short name of the module identified by the specified module index
750
* @param module_index The module index to get the name for
751
* @return the name of the module, NULL if not found
753
AP_DECLARE(const char *) ap_find_module_short_name(int module_index);
755
* Find a module based on the name of the module
756
* @param name the name of the module
757
* @return the module structure if found, NULL otherwise
759
AP_DECLARE(module *) ap_find_linked_module(const char *name);
762
* Open a ap_configfile_t as apr_file_t
763
* @param ret_cfg open ap_configfile_t struct pointer
764
* @param p The pool to allocate the structure from
765
* @param name the name of the file to open
767
AP_DECLARE(apr_status_t) ap_pcfg_openfile(ap_configfile_t **ret_cfg,
768
apr_pool_t *p, const char *name);
771
* Allocate a ap_configfile_t handle with user defined functions and params
772
* @param p The pool to allocate from
773
* @param descr The name of the file
774
* @param param The argument passed to getch/getstr/close
775
* @param getc_func The getch function
776
* @param gets_func The getstr function
777
* @param close_func The close function
779
AP_DECLARE(ap_configfile_t *) ap_pcfg_open_custom(apr_pool_t *p,
782
apr_status_t (*getc_func) (char *ch, void *param),
783
apr_status_t (*gets_func) (void *buf, apr_size_t bufsiz, void *param),
784
apr_status_t (*close_func) (void *param));
787
* Read one line from open ap_configfile_t, strip leading and trailing
788
* whitespace, increase line number
789
* @param buf place to store the line read
790
* @param bufsize size of the buffer
791
* @param cfp File to read from
792
* @return error status, APR_ENOSPC if bufsize is too small for the line
794
AP_DECLARE(apr_status_t) ap_cfg_getline(char *buf, apr_size_t bufsize, ap_configfile_t *cfp);
797
* Read one char from open configfile_t, increase line number upon LF
798
* @param ch place to store the char read
799
* @param cfp The file to read from
800
* @return error status
802
AP_DECLARE(apr_status_t) ap_cfg_getc(char *ch, ap_configfile_t *cfp);
805
* Detach from open ap_configfile_t, calling the close handler
806
* @param cfp The file to close
807
* @return 1 on sucess, 0 on failure
809
AP_DECLARE(int) ap_cfg_closefile(ap_configfile_t *cfp);
812
* Convert a return value from ap_cfg_getline or ap_cfg_getc to a user friendly
814
* @param p The pool to allocate the string from
815
* @param cfp The config file
816
* @param rc The return value to convert
817
* @return The error string, NULL if rc == APR_SUCCESS
819
AP_DECLARE(const char *) ap_pcfg_strerror(apr_pool_t *p, ap_configfile_t *cfp,
823
* Read all data between the current <foo> and the matching </foo>. All
824
* of this data is forgotten immediately.
825
* @param cmd The cmd_parms to pass to the directives inside the container
826
* @param directive The directive name to read until
827
* @return Error string on failure, NULL on success
828
* @note If cmd->pool == cmd->temp_pool, ap_soak_end_container() will assume
829
* .htaccess context and use a lower maximum line length.
831
AP_DECLARE(const char *) ap_soak_end_container(cmd_parms *cmd, char *directive);
834
* Read all data between the current <foo> and the matching </foo> and build
835
* a config tree from it
836
* @param p pool to allocate from
837
* @param temp_pool Temporary pool to allocate from
838
* @param parms The cmd_parms to pass to all directives read
839
* @param current The current node in the tree
840
* @param curr_parent The current parent node
841
* @param orig_directive The directive to read until hit.
842
* @return Error string on failure, NULL on success
843
* @note If p == temp_pool, ap_build_cont_config() will assume .htaccess
844
* context and use a lower maximum line length.
846
AP_DECLARE(const char *) ap_build_cont_config(apr_pool_t *p,
847
apr_pool_t *temp_pool,
849
ap_directive_t **current,
850
ap_directive_t **curr_parent,
851
char *orig_directive);
854
* Build a config tree from a config file
855
* @param parms The cmd_parms to pass to all of the directives in the file
856
* @param conf_pool The pconf pool
857
* @param temp_pool The temporary pool
858
* @param conftree Place to store the root node of the config tree
859
* @return Error string on erro, NULL otherwise
860
* @note If conf_pool == temp_pool, ap_build_config() will assume .htaccess
861
* context and use a lower maximum line length.
863
AP_DECLARE(const char *) ap_build_config(cmd_parms *parms,
864
apr_pool_t *conf_pool,
865
apr_pool_t *temp_pool,
866
ap_directive_t **conftree);
869
* Walk a config tree and setup the server's internal structures
870
* @param conftree The config tree to walk
871
* @param parms The cmd_parms to pass to all functions
872
* @param section_vector The per-section config vector.
873
* @return Error string on error, NULL otherwise
875
AP_DECLARE(const char *) ap_walk_config(ap_directive_t *conftree,
877
ap_conf_vector_t *section_vector);
880
* @defgroup ap_check_cmd_context Check command context
884
* Check the context a command is used in.
885
* @param cmd The command to check
886
* @param forbidden Where the command is forbidden.
887
* @return Error string on error, NULL on success
889
AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
892
#define NOT_IN_VIRTUALHOST 0x01 /**< Forbidden in <VirtualHost> */
893
#define NOT_IN_LIMIT 0x02 /**< Forbidden in <Limit> */
894
#define NOT_IN_DIRECTORY 0x04 /**< Forbidden in <Directory> */
895
#define NOT_IN_LOCATION 0x08 /**< Forbidden in <Location> */
896
#define NOT_IN_FILES 0x10 /**< Forbidden in <Files> */
897
#define NOT_IN_HTACCESS 0x20 /**< Forbidden in .htaccess files */
898
/** Forbidden in <Directory>/<Location>/<Files>*/
899
#define NOT_IN_DIR_LOC_FILE (NOT_IN_DIRECTORY|NOT_IN_LOCATION|NOT_IN_FILES)
900
/** Forbidden in <VirtualHost>/<Limit>/<Directory>/<Location>/<Files> */
901
#define GLOBAL_ONLY (NOT_IN_VIRTUALHOST|NOT_IN_LIMIT|NOT_IN_DIR_LOC_FILE)
906
* @brief This structure is used to assign symbol names to module pointers
911
} ap_module_symbol_t;
914
* The topmost module in the list
915
* @var module *ap_top_module
917
AP_DECLARE_DATA extern module *ap_top_module;
920
* Array of all statically linked modules
921
* @var module *ap_prelinked_modules[]
923
AP_DECLARE_DATA extern module *ap_prelinked_modules[];
925
* Array of all statically linked modulenames (symbols)
926
* @var ap_module_symbol_t ap_prelinked_module_symbols[]
928
AP_DECLARE_DATA extern ap_module_symbol_t ap_prelinked_module_symbols[];
930
* Array of all preloaded modules
931
* @var module *ap_preloaded_modules[]
933
AP_DECLARE_DATA extern module *ap_preloaded_modules[];
935
* Array of all loaded modules
936
* @var module **ap_loaded_modules
938
AP_DECLARE_DATA extern module **ap_loaded_modules;
940
/* For mod_so.c... */
941
/** Run a single module's two create_config hooks
942
* @param p the pool to allocate from
943
* @param s The server to configure for.
944
* @param m The module to configure
946
AP_DECLARE(void) ap_single_module_configure(apr_pool_t *p, server_rec *s,
949
/* For http_main.c... */
951
* Add all of the prelinked modules into the loaded module list
952
* @param process The process that is currently running the server
954
AP_DECLARE(const char *) ap_setup_prelinked_modules(process_rec *process);
957
* Show the preloaded configuration directives, the help string explaining
958
* the directive arguments, in what module they are handled, and in
959
* what parts of the configuration they are allowed. Used for httpd -h.
961
AP_DECLARE(void) ap_show_directives(void);
964
* Show the preloaded module names. Used for httpd -l.
966
AP_DECLARE(void) ap_show_modules(void);
969
* Show the MPM name. Used in reporting modules such as mod_info to
970
* provide extra information to the user
972
AP_DECLARE(const char *) ap_show_mpm(void);
975
* Read all config files and setup the server
976
* @param process The process running the server
977
* @param temp_pool A pool to allocate temporary data from.
978
* @param config_name The name of the config file
979
* @param conftree Place to store the root of the config tree
980
* @return The setup server_rec list.
982
AP_DECLARE(server_rec *) ap_read_config(process_rec *process,
983
apr_pool_t *temp_pool,
984
const char *config_name,
985
ap_directive_t **conftree);
988
* Run all rewrite args hooks for loaded modules
989
* @param process The process currently running the server
991
AP_DECLARE(void) ap_run_rewrite_args(process_rec *process);
994
* Run the register hooks function for a specified module
995
* @param m The module to run the register hooks function fo
996
* @param p The pool valid for the lifetime of the module
998
AP_DECLARE(void) ap_register_hooks(module *m, apr_pool_t *p);
1001
* Setup all virtual hosts
1002
* @param p The pool to allocate from
1003
* @param main_server The head of the server_rec list
1005
AP_DECLARE(void) ap_fixup_virtual_hosts(apr_pool_t *p,
1006
server_rec *main_server);
1009
* Reserve some modules slots for modules loaded by other means than
1010
* EXEC_ON_READ directives.
1011
* Relevant modules should call this in the pre_config stage.
1012
* @param count The number of slots to reserve.
1014
AP_DECLARE(void) ap_reserve_module_slots(int count);
1017
* Reserve some modules slots for modules loaded by a specific
1018
* non-EXEC_ON_READ config directive.
1019
* This counts how often the given directive is used in the config and calls
1020
* ap_reserve_module_slots() accordingly.
1021
* @param directive The name of the directive
1023
AP_DECLARE(void) ap_reserve_module_slots_directive(const char *directive);
1025
/* For http_request.c... */
1028
* Setup the config vector for a request_rec
1029
* @param p The pool to allocate the config vector from
1030
* @return The config vector
1032
AP_DECLARE(ap_conf_vector_t*) ap_create_request_config(apr_pool_t *p);
1035
* Setup the config vector for per dir module configs
1036
* @param p The pool to allocate the config vector from
1037
* @return The config vector
1039
AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_per_dir_config(apr_pool_t *p);
1042
* Run all of the modules merge per dir config functions
1043
* @param p The pool to pass to the merge functions
1044
* @param base The base directory config structure
1045
* @param new_conf The new directory config structure
1047
AP_CORE_DECLARE(ap_conf_vector_t*) ap_merge_per_dir_configs(apr_pool_t *p,
1048
ap_conf_vector_t *base,
1049
ap_conf_vector_t *new_conf);
1052
* Allocate new ap_logconf and make (deep) copy of old ap_logconf
1053
* @param p The pool to alloc from
1054
* @param old The ap_logconf to copy (may be NULL)
1055
* @return The new ap_logconf struct
1057
AP_DECLARE(struct ap_logconf *) ap_new_log_config(apr_pool_t *p,
1058
const struct ap_logconf *old);
1061
* Merge old ap_logconf into new ap_logconf.
1062
* old and new must have the same life time.
1063
* @param old_conf The ap_logconf to merge from
1064
* @param new_conf The ap_logconf to merge into
1066
AP_DECLARE(void) ap_merge_log_config(const struct ap_logconf *old_conf,
1067
struct ap_logconf *new_conf);
1069
/* For http_connection.c... */
1071
* Setup the config vector for a connection_rec
1072
* @param p The pool to allocate the config vector from
1073
* @return The config vector
1075
AP_CORE_DECLARE(ap_conf_vector_t*) ap_create_conn_config(apr_pool_t *p);
1077
/* For http_core.c... (<Directory> command and virtual hosts) */
1080
* parse an htaccess file
1081
* @param result htaccess_result
1082
* @param r The request currently being served
1083
* @param override Which overrides are active
1084
* @param override_opts Which allow-override-opts bits are set
1085
* @param override_list Table of directives allowed for override
1086
* @param path The path to the htaccess file
1087
* @param access_name The list of possible names for .htaccess files
1088
* int The status of the current request
1090
AP_CORE_DECLARE(int) ap_parse_htaccess(ap_conf_vector_t **result,
1094
apr_table_t *override_list,
1096
const char *access_name);
1099
* Setup a virtual host
1100
* @param p The pool to allocate all memory from
1101
* @param hostname The hostname of the virtual hsot
1102
* @param main_server The main server for this Apache configuration
1103
* @param ps Place to store the new server_rec
1104
* return Error string on error, NULL on success
1106
AP_CORE_DECLARE(const char *) ap_init_virtual_host(apr_pool_t *p,
1107
const char *hostname,
1108
server_rec *main_server,
1112
* Process a config file for Apache
1113
* @param s The server rec to use for the command parms
1114
* @param fname The name of the config file
1115
* @param conftree The root node of the created config tree
1116
* @param p Pool for general allocation
1117
* @param ptemp Pool for temporary allocation
1119
AP_DECLARE(const char *) ap_process_resource_config(server_rec *s,
1121
ap_directive_t **conftree,
1126
* Process all matching files as Apache configs
1127
* @param s The server rec to use for the command parms
1128
* @param fname The filename pattern of the config file
1129
* @param conftree The root node of the created config tree
1130
* @param p Pool for general allocation
1131
* @param ptemp Pool for temporary allocation
1132
* @param optional Whether a no-match wildcard is allowed
1133
* @see apr_fnmatch for pattern handling
1135
AP_DECLARE(const char *) ap_process_fnmatch_configs(server_rec *s,
1137
ap_directive_t **conftree,
1143
* Process all directives in the config tree
1144
* @param s The server rec to use in the command parms
1145
* @param conftree The config tree to process
1146
* @param p The pool for general allocation
1147
* @param ptemp The pool for temporary allocations
1148
* @return OK if no problems
1150
AP_DECLARE(int) ap_process_config_tree(server_rec *s,
1151
ap_directive_t *conftree,
1156
* Store data which will be retained across unload/load of modules
1157
* @param key The unique key associated with this module's retained data
1158
* @param size in bytes of the retained data (to be allocated)
1159
* @return Address of new retained data structure, initially cleared
1161
AP_DECLARE(void *) ap_retained_data_create(const char *key, apr_size_t size);
1164
* Retrieve data which was stored by ap_retained_data_create()
1165
* @param key The unique key associated with this module's retained data
1166
* @return Address of previously retained data structure, or NULL if not yet saved
1168
AP_DECLARE(void *) ap_retained_data_get(const char *key);
1170
/* Module-method dispatchers, also for http_request.c */
1172
* Run the handler phase of each module until a module accepts the
1173
* responsibility of serving the request
1174
* @param r The current request
1175
* @return The status of the current request
1177
AP_CORE_DECLARE(int) ap_invoke_handler(request_rec *r);
1182
* Find a given directive in a command_rec table
1183
* @param name The directive to search for
1184
* @param cmds The table to search
1185
* @return The directive definition of the specified directive
1187
AP_CORE_DECLARE(const command_rec *) ap_find_command(const char *name,
1188
const command_rec *cmds);
1191
* Find a given directive in a list of modules.
1192
* @param cmd_name The directive to search for
1193
* @param mod Pointer to the first module in the linked list; will be set to
1194
* the module providing cmd_name
1195
* @return The directive definition of the specified directive.
1196
* *mod will be changed to point to the module containing the
1199
AP_CORE_DECLARE(const command_rec *) ap_find_command_in_modules(const char *cmd_name,
1203
* Ask a module to create per-server and per-section (dir/loc/file) configs
1204
* (if it hasn't happened already). The results are stored in the server's
1205
* config, and the specified per-section config vector.
1206
* @param server The server to operate upon.
1207
* @param section_vector The per-section config vector.
1208
* @param section Which section to create a config for.
1209
* @param mod The module which is defining the config data.
1210
* @param pconf A pool for all configuration allocations.
1211
* @return The (new) per-section config data.
1213
AP_CORE_DECLARE(void *) ap_set_config_vectors(server_rec *server,
1214
ap_conf_vector_t *section_vector,
1215
const char *section,
1216
module *mod, apr_pool_t *pconf);
1221
* Run the header parser functions for each module
1222
* @param r The current request
1223
* @return OK or DECLINED
1225
AP_DECLARE_HOOK(int,header_parser,(request_rec *r))
1228
* Run the pre_config function for each module
1229
* @param pconf The config pool
1230
* @param plog The logging streams pool
1231
* @param ptemp The temporary pool
1232
* @return OK or DECLINED on success anything else is a error
1234
AP_DECLARE_HOOK(int,pre_config,(apr_pool_t *pconf,apr_pool_t *plog,
1238
* Run the check_config function for each module
1239
* @param pconf The config pool
1240
* @param plog The logging streams pool
1241
* @param ptemp The temporary pool
1242
* @param s the server to operate upon
1243
* @return OK or DECLINED on success anything else is a error
1245
AP_DECLARE_HOOK(int,check_config,(apr_pool_t *pconf, apr_pool_t *plog,
1246
apr_pool_t *ptemp, server_rec *s))
1249
* Run the test_config function for each module; this hook is run
1250
* only if the server was invoked to test the configuration syntax.
1251
* @param pconf The config pool
1252
* @param s The list of server_recs
1253
* @note To avoid reordering problems due to different buffering, hook
1254
* functions should only apr_file_*() to print to stdout/stderr and
1255
* not simple printf()/fprintf().
1258
AP_DECLARE_HOOK(void,test_config,(apr_pool_t *pconf, server_rec *s))
1261
* Run the post_config function for each module
1262
* @param pconf The config pool
1263
* @param plog The logging streams pool
1264
* @param ptemp The temporary pool
1265
* @param s The list of server_recs
1266
* @return OK or DECLINED on success anything else is a error
1268
AP_DECLARE_HOOK(int,post_config,(apr_pool_t *pconf,apr_pool_t *plog,
1269
apr_pool_t *ptemp,server_rec *s))
1272
* Run the open_logs functions for each module
1273
* @param pconf The config pool
1274
* @param plog The logging streams pool
1275
* @param ptemp The temporary pool
1276
* @param s The list of server_recs
1277
* @return OK or DECLINED on success anything else is a error
1279
AP_DECLARE_HOOK(int,open_logs,(apr_pool_t *pconf,apr_pool_t *plog,
1280
apr_pool_t *ptemp,server_rec *s))
1283
* Run the child_init functions for each module
1284
* @param pchild The child pool
1285
* @param s The list of server_recs in this server
1287
AP_DECLARE_HOOK(void,child_init,(apr_pool_t *pchild, server_rec *s))
1290
* Run the handler functions for each module
1291
* @param r The request_rec
1292
* @remark non-wildcard handlers should HOOK_MIDDLE, wildcard HOOK_LAST
1294
AP_DECLARE_HOOK(int,handler,(request_rec *r))
1297
* Run the quick handler functions for each module. The quick_handler
1298
* is run before any other requests hooks are called (location_walk,
1299
* directory_walk, access checking, et. al.). This hook was added
1300
* to provide a quick way to serve content from a URI keyed cache.
1302
* @param r The request_rec
1303
* @param lookup_uri Controls whether the caller actually wants content or not.
1304
* lookup is set when the quick_handler is called out of
1305
* ap_sub_req_lookup_uri()
1307
AP_DECLARE_HOOK(int,quick_handler,(request_rec *r, int lookup_uri))
1310
* Retrieve the optional functions for each module.
1311
* This is run immediately before the server starts. Optional functions should
1312
* be registered during the hook registration phase.
1314
AP_DECLARE_HOOK(void,optional_fn_retrieve,(void))
1317
* A generic pool cleanup that will reset a pointer to NULL. For use with
1318
* apr_pool_cleanup_register.
1319
* @param data The address of the pointer
1320
* @return APR_SUCCESS
1322
AP_DECLARE_NONSTD(apr_status_t) ap_pool_cleanup_set_null(void *data);
1328
#endif /* !APACHE_HTTP_CONFIG_H */