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/*
 * uhttpd - Tiny non-forking httpd - Main header
 *
 *   Copyright (C) 2010 Jo-Philipp Wich <xm@subsignal.org>
 *
 *  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.
 */

#ifndef _UHTTPD_

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <linux/limits.h>
#include <netdb.h>
#include <ctype.h>

#ifdef HAVE_TLS
#include <openssl/ssl.h>
#endif


#define UH_LIMIT_MSGHEAD	4096
#define UH_LIMIT_HEADERS	64

#define UH_LIMIT_LISTENERS	16
#define UH_LIMIT_CLIENTS	64
#define UH_LIMIT_AUTHREALMS	8

#define UH_HTTP_MSG_GET		0
#define UH_HTTP_MSG_HEAD	1
#define UH_HTTP_MSG_POST	2


struct config {
	char docroot[PATH_MAX];
#ifdef HAVE_CGI
	char *cgi_prefix;
#endif
#ifdef HAVE_LUA
	char *lua_prefix;
	char *lua_handler;
#endif
#ifdef HAVE_TLS
	char *cert;
	char *key;
	SSL_CTX *tls;
#endif
};

struct listener {
	int socket;
	struct sockaddr_in6 addr;
	struct config *conf;
#ifdef HAVE_TLS
	SSL_CTX *tls;
#endif
};

struct client {
	int socket;
	int peeklen;
	char peekbuf[UH_LIMIT_MSGHEAD];
	struct listener *server;
	struct sockaddr_in6 servaddr;
	struct sockaddr_in6 peeraddr;
#ifdef HAVE_TLS
	SSL *tls;
#endif
};

struct auth_realm {
	char path[PATH_MAX];
	char realm[128];
	char user[32];
	char pass[128];
};

struct http_request {
	int	method;
	float version;
	char *url;
	char *headers[UH_LIMIT_HEADERS];
	struct auth_realm *realm;
};

struct http_response {
	int statuscode;
	char *statusmsg;
	char *headers[UH_LIMIT_HEADERS];
};

#endif