/******************************************************************************
*
* Nagios check_http plugin
*
* License: GPL
* Copyright (c) 1999-2006 nagios-plugins team
*
* Last Modified: $Date: 2007-07-21 17:29:01 +0100 (Sat, 21 Jul 2007) $
*
* Description:
*
* This file contains the check_http plugin
*
*  This plugin tests the HTTP service on the specified host. It can test
*  normal (http) and secure (https) servers, follow redirects, search for
*  strings and regular expressions, check connection times, and report on
*  certificate expiration times.
*
*
* License Information:
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 $Id: check_http.c 1759 2007-07-21 16:29:01Z hweiss $
 
******************************************************************************/
/* splint -I. -I../../plugins -I../../lib/ -I/usr/kerberos/include/ ../../plugins/check_http.c */

const char *progname = "check_http";
const char *revision = "$Revision: 1759 $";
const char *copyright = "1999-2006";
const char *email = "nagiosplug-devel@lists.sourceforge.net";

#include <ctype.h>

#include "common.h"
#include "netutils.h"
#include "utils.h"

#define INPUT_DELIMITER ";"

#define HTTP_EXPECT "HTTP/1."
enum {
  MAX_IPV4_HOSTLENGTH = 255,
  HTTP_PORT = 80,
  HTTPS_PORT = 443,
  MAX_PORT = 65535
};

#ifdef HAVE_SSL
int check_cert = FALSE;
int days_till_exp;
char *randbuff;
X509 *server_cert;
#  define my_recv(buf, len) ((use_ssl) ? np_net_ssl_read(buf, len) : read(sd, buf, len))
#  define my_send(buf, len) ((use_ssl) ? np_net_ssl_write(buf, len) : send(sd, buf, len, 0))
#else /* ifndef HAVE_SSL */
#  define my_recv(buf, len) read(sd, buf, len)
#  define my_send(buf, len) send(sd, buf, len, 0)
#endif /* HAVE_SSL */
int no_body = FALSE;
int maximum_age = -1;

enum {
  REGS = 2,
  MAX_RE_SIZE = 256
};
#include "regex.h"
regex_t preg;
regmatch_t pmatch[REGS];
char regexp[MAX_RE_SIZE];
char errbuf[MAX_INPUT_BUFFER];
int cflags = REG_NOSUB | REG_EXTENDED | REG_NEWLINE;
int errcode;
int invert_regex = 0;

struct timeval tv;

#define HTTP_URL "/"
#define CRLF "\r\n"

int specify_port = FALSE;
int server_port = HTTP_PORT;
char server_port_text[6] = "";
char server_type[6] = "http";
char *server_address;
char *host_name;
char *server_url;