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àœ¸ËÊbÑ¿Àƒ}ç_†I|¥�+ÀÃ &„    /* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @file  util_script.h
 * @brief Apache script tools
 *
 * @defgroup APACHE_CORE_SCRIPT Script Tools
 * @ingroup  APACHE_CORE
 * @{
 */

#ifndef APACHE_UTIL_SCRIPT_H
#define APACHE_UTIL_SCRIPT_H

#include "apr_buckets.h"
#include "ap_config.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifndef APACHE_ARG_MAX
#ifdef _POSIX_ARG_MAX
#define APACHE_ARG_MAX _POSIX_ARG_MAX
#else
#define APACHE_ARG_MAX 512
#endif
#endif

/**
 * Create an environment variable out of an Apache table of key-value pairs
 * @param p pool to allocate out of
 * @param t Apache table of key-value pairs
 * @return An array containing the same key-value pairs suitable for
 *         use with an exec call.
 * @fn char **ap_create_environment(apr_pool_t *p, apr_table_t *t)
 */
AP_DECLARE(char **) ap_create_environment(apr_pool_t *p, apr_table_t *t);

/**
 * This "cute" little function comes about because the path info on
 * filenames and URLs aren't always the same. So we take the two,
 * and find as much of the two that match as possible.
 * @param uri The uri we are currently parsing
 * @param path_info The current path info
 * @return The length of the path info
 * @fn int ap_find_path_info(const char *uri, const char *path_info)
 */
AP_DECLARE(int) ap_find_path_info(const char *uri, const char *path_info);

/**
 * Add CGI environment variables required by HTTP/1.1 to the request's
 * environment table
 * @param r the current request
 * @fn void ap_add_cgi_vars(request_rec *r)
 */
AP_DECLARE(void) ap_add_cgi_vars(request_rec *r);

/**
 * Add common CGI environment variables to the requests environment table
 * @param r The current request
 * @fn void ap_add_common_vars(request_rec *r)
 */
AP_DECLARE(void) ap_add_common_vars(request_rec *r);

/**
 * Read headers output from a script, ensuring that the output is valid.  If
 * the output is valid, then the headers are added to the headers out of the
 * current request
 * @param r The current request
 * @param f The file to read from
 * @param buffer Empty when calling the function.  On output, if there was an
 *               error, the string that cause the error is stored here.
 * @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
 * @fn int ap_scan_script_header_err(request_rec *r, apr_file_t *f, char *buffer)
 */
AP_DECLARE(int) ap_scan_script_header_err(request_rec *r, apr_file_t *f, char *buffer);

/**
 * Read headers output from a script, ensuring that the output is valid.  If
 * the output is valid, then the headers are added to the headers out of the
 * current request
 * @param r The current request
 * @param f The file to read from
 * @param buffer Empty when calling the function.  On output, if there was an
 *               error, the string that cause the error is stored here.
 * @param module_index The module index to be used for logging
 * @return HTTP_OK on success, HTTP_INTERNAL_SERVER_ERROR otherwise
 */
AP_DECLARE(int) ap_scan_script_header_err_ex(request_rec *r, apr_file_t *f,
                                             char *buffer, int module_index);


/**
 * Read headers output from a script, ensuring that the output is valid.  If
 * the output is valid, then the headers are added to