/* 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.
 */

#define APR_WANT_STRFUNC
#include "apr_want.h"

#include "httpd.h"
#include "http_config.h"
#include "http_core.h"

/* Possibly get rid of the macros we defined in httpd.h */
#if defined(strchr)
#undef strchr
#endif

#if defined (strrchr)
#undef strrchr
#endif

#if defined (strstr)
#undef strstr
#endif


#if defined(ap_strchr)
#undef ap_strchr
AP_DECLARE(char *) ap_strchr(char *s, int c);
#endif

AP_DECLARE(char *) ap_strchr(char *s, int c)
{
    return strchr(s,c);
}

#if defined(ap_strchr_c)
#undef ap_strchr_c
AP_DECLARE(const char *) ap_strchr_c(const char *s, int c);
#endif

AP_DECLARE(const char *) ap_strchr_c(const char *s, int c)
{
    return strchr(s,c);
}

#if defined(ap_strrchr)
#undef ap_strrchr
AP_DECLARE(char *) ap_strrchr(char *s, int c);
#endif

AP_DECLARE(char *) ap_strrchr(char *s, int c)
{
    return strrchr(s,c);
}

#if defined(ap_strrchr_c)
#undef ap_strrchr_c
AP_DECLARE(const char *) ap_strrchr_c(const char *s, int c);
#endif

AP_DECLARE(const char *) ap_strrchr_c(const char *s, int c)
{
    return strrchr(s,c);
}

#if defined(ap_strstr)
#undef ap_strstr
AP_DECLARE(char *) ap_strstr(char *s, const char *c);
#endif

AP_DECLARE(char *) ap_strstr(char *s, const char *c)
{
    return strstr(s,c);
}

#if defined(ap_strstr_c)
#undef ap_strstr_c
AP_DECLARE(const char *) ap_strstr_c(const char *s, const char *c);
#endif

AP_DECLARE(const char *) ap_strstr_c(const char *s, const char *c)
{
    return strstr(s,c);
}

#if defined(ap_get_module_config)
#undef ap_get_module_config
AP_DECLARE(void *) ap_get_module_config(const ap_conf_vector_t *cv,
                                        const module *m);
#endif

AP_DECLARE(void *) ap_get_module_config(const ap_conf_vector_t *cv,
                                        const module *m)
{
    return ((void **)cv)[m->module_index];
}

AP_DECLARE(int) ap_get_module_flags(const module *m)
{
    if (m->version < AP_MODULE_FLAGS_MMN_MAJOR
            || (m->version == AP_MODULE_FLAGS_MMN_MAJOR
                && (m->minor_version < AP_MODULE_FLAGS_MMN_MINOR))) {
        return 0;
    }

    return m->flags;
}

#if defined(ap_get_core_module_config)
#undef ap_get_core_module_config
AP_DECLARE(void *) ap_get_core_module_config(const ap_conf_vector_t *cv);
#endif

AP_DECLARE(void *) ap_get_core_module_config(const ap_conf_vector_t *cv)
{
    return ((void **)cv)[AP_CORE_MODULE_INDEX];
}


#if defined(ap_get_server_module_loglevel)
#undef ap_get_server_module_loglevel
AP_DECLARE(int) ap_get_server_module_loglevel(const server_rec *s, int module_index);
#endif

AP_DECLARE(int) ap_get_server_module_loglevel(const server_rec *s, int module_index)
{
    if (module_index < 0 || s->log.module_levels == NULL ||
        s->log.module_levels[module_index] < 0)
    {
        return s->log.level;
    }

    return s->log.module_levels[module_index];
}

#if defined(ap_get_conn_module_loglevel)
#undef ap_get_conn_module_loglevel
AP_DECLARE(int) ap_get_conn_module_loglevel(const conn_rec *c, int module_index);
#endif

AP_DECLARE(int) ap_get_conn_module_loglevel(const conn_rec *c, int module_index)
{
    const struct ap_logconf *l = (c)->log ? (c)->log : &(c)->base_server->log;
    if (module_index < 0 || l->module_levels == NULL ||
        l->module_levels[module_index] < 0)
    {
        return l->level;
    }

    return l->module_levels[module_index];
}

#if defined(ap_get_conn_server_module_loglevel)
#undef ap_get_conn_server_module_loglevel
AP_DECLARE(int) ap_get_conn_server_module_loglevel(const conn_rec *c,
                                                   const server_rec *s,
                                                   int module_index);
#endif

AP_DECLARE(int) ap_get_conn_server_module_loglevel(const conn_rec *c,
                                                   const server_rec *s,
                                                   int module_index)
{
    const struct ap_logconf *l = (c->log && c->log != &c->base_server->log) ?
                                 c->log : &s->log;
    if (module_index < 0 || l->module_levels == NULL ||
        l->module_levels[module_index] < 0)
    {
        return l->level;
    }

    return l->module_levels[module_index];
}

#if defined(ap_get_request_module_loglevel)
#undef ap_get_request_module_loglevel
AP_DECLARE(int) ap_get_request_module_loglevel(const request_rec *c, int module_index);
#endif

AP_DECLARE(int) ap_get_request_module_loglevel(const request_rec *r, int module_index)
{
    const struct ap_logconf *l = r->log             ? r->log             :
                                 r->connection->log ? r->connection->log :
                                 &r->server->log;
    if (module_index < 0 || l->module_levels == NULL ||
        l->module_levels[module_index] < 0)
    {
        return l->level;
    }

    return l->module_levels[module_index];
}

/**
 * Generic accessors for other modules to set at their own module-specific
 * data
 * @param conf_vector The vector in which the modules configuration is stored.
 *        usually r->per_dir_config or s->module_config
 * @param m The module to set the data for.
 * @param val The module-specific data to set
 * @fn void ap_set_module_config(ap_conf_vector_t *cv, const module *m, void *val)
 */
#if defined(ap_set_module_config)
#undef ap_set_module_config
AP_DECLARE(void) ap_set_module_config(ap_conf_vector_t *cv, const module *m,
                                      void *val);
#endif

AP_DECLARE(void) ap_set_module_config(ap_conf_vector_t *cv, const module *m,
                                      void *val)
{
    ((void **)cv)[m->module_index] = val;
}


#if defined(ap_set_core_module_config)
#undef ap_set_core_module_config
AP_DECLARE(void) ap_set_core_module_config(ap_conf_vector_t *cv, void *val);
#endif

AP_DECLARE(void) ap_set_core_module_config(ap_conf_vector_t *cv, void *val)
{
    ((void **)cv)[AP_CORE_MODULE_INDEX] = val;
}

#if defined(apr_palloc)
#undef apr_palloc
#endif
AP_DECLARE(void *) ap_palloc_debug(apr_pool_t *p, apr_size_t size)
{
    /* poison uninitialized memory */
    return memset(apr_palloc(p, size), 0xEE, size);
}

#if defined(apr_pcalloc)
#undef apr_pcalloc
#endif
AP_DECLARE(void *) ap_pcalloc_debug(apr_pool_t *p, apr_size_t size)
{
    return memset(apr_palloc(p, size), 0, size);
}
