/* Copyright 2003-2005 The Apache Software Foundation or its licensors, as * applicable. * * Licensed 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. */#include "httpd.h"#include "http_config.h"#include "apr_strings.h"#include "ap_provider.h"#include "mod_dav.h"#include "locks.h"/* per-dir configuration */typedef struct {    const char *lockdb_path;} dav_lock_dir_conf;extern const dav_hooks_locks dav_hooks_locks_generic;extern module AP_MODULE_DECLARE_DATA dav_lock_module;const char *dav_generic_get_lockdb_path(const request_rec *r){    dav_lock_dir_conf *conf;    conf = ap_get_module_config(r->per_dir_config, &dav_lock_module);    return conf->lockdb_path;}static void *dav_lock_create_dir_config(apr_pool_t *p, char *dir){    return apr_pcalloc(p, sizeof(dav_lock_dir_conf));}static void *dav_lock_merge_dir_config(apr_pool_t *p,                                       void *base, void *overrides){    dav_lock_dir_conf *parent = base;    dav_lock_dir_conf *child = overrides;    dav_lock_dir_conf *newconf;    newconf = apr_pcalloc(p, sizeof(*newconf));    newconf->lockdb_path =        child->lockdb_path ? child->lockdb_path : parent->lockdb_path;    return newconf;}/* * Command handler for the DAVGenericLockDB directive, which is TAKE1 */static const char *dav_lock_cmd_davlockdb(cmd_parms *cmd, void *config,                                        const char *arg1){    dav_lock_dir_conf *conf = config;    conf->lockdb_path = ap_server_root_relative(cmd->pool, arg1);    if (!conf->lockdb_path) {        return apr_pstrcat(cmd->pool, "Invalid DAVGenericLockDB path ",                           arg1, NULL);    }    return NULL;}static const command_rec dav_lock_cmds[] ={    /* per server */    AP_INIT_TAKE1("DAVGenericLockDB", dav_lock_cmd_davlockdb, NULL, ACCESS_CONF,                  "specify a lock database"),    { NULL }};static void register_hooks(apr_pool_t *p){    ap_register_provider(p, "dav-lock", "generic", "0",                         &dav_hooks_locks_generic);}module AP_MODULE_DECLARE_DATA dav_lock_module ={    STANDARD20_MODULE_STUFF,    dav_lock_create_dir_config,     /* dir config creater */    dav_lock_merge_dir_config,      /* dir merger --- default is to override */    NULL,                           /* server config */    NULL,                           /* merge server config */    dav_lock_cmds,                  /* command table */    register_hooks,                 /* register hooks */};