78 lines
3.1 KiB
C
78 lines
3.1 KiB
C
|
/****************************************************************************
|
|||
|
|
* netutils/thttpd/cgi-src/phf.c
|
|||
|
|
* Cracker trap
|
|||
|
|
*
|
|||
|
|
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
|
|||
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|||
|
|
*
|
|||
|
|
* Derived from the file of the same name in the original THTTPD package:
|
|||
|
|
*
|
|||
|
|
* Copyright <EFBFBD> 1996 by Jef Poskanzer <jef@mail.acme.com>.
|
|||
|
|
* All rights reserved.
|
|||
|
|
*
|
|||
|
|
* Redistribution and use in source and binary forms, with or without
|
|||
|
|
* modification, are permitted provided that the following conditions
|
|||
|
|
* are met:
|
|||
|
|
*
|
|||
|
|
* 1. Redistributions of source code must retain the above copyright
|
|||
|
|
* notice, this list of conditions and the following disclaimer.
|
|||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|||
|
|
* notice, this list of conditions and the following disclaimer in the
|
|||
|
|
* documentation and/or other materials provided with the distribution.
|
|||
|
|
*
|
|||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|||
|
|
* SUCH DAMAGE.
|
|||
|
|
*
|
|||
|
|
****************************************************************************/
|
|||
|
|
|
|||
|
|
/* Old distributions of the NCSA and Apache web servers included a
|
|||
|
|
* version of the phf program that had a bug. The program could
|
|||
|
|
* easily be made to run arbitrary shell commands. There is no real
|
|||
|
|
* legitimate use for phf, so any attempts to run it must be considered
|
|||
|
|
* to be attacks. Accordingly, this version of phf logs the attack
|
|||
|
|
* on stderr and then returns a page on CONFIG_THTTPD_CGI_OUTFD indicating
|
|||
|
|
* that phf doesn't exist.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
/****************************************************************************
|
|||
|
|
* Included Files
|
|||
|
|
****************************************************************************/
|
|||
|
|
|
|||
|
|
#include <nuttx/config.h>
|
|||
|
|
|
|||
|
|
#include <stdio.h>
|
|||
|
|
#include <stdlib.h>
|
|||
|
|
#include <string.h>
|
|||
|
|
|
|||
|
|
#include "config.h"
|
|||
|
|
|
|||
|
|
/****************************************************************************
|
|||
|
|
* Public Functions
|
|||
|
|
****************************************************************************/
|
|||
|
|
|
|||
|
|
int main(int argc, char *argv[])
|
|||
|
|
{
|
|||
|
|
fprintf(stderr, "phf CGI probe from %s\n", getenv("REMOTE_ADDR"));
|
|||
|
|
|
|||
|
|
(void)printf("\
|
|||
|
|
Content-type: text/html\n\
|
|||
|
|
Status: 404/html\n\
|
|||
|
|
\n\
|
|||
|
|
<HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD>\n\
|
|||
|
|
<BODY><H2>404 Not Found</H2>\n\
|
|||
|
|
The requested object does not exist on this server.\n\
|
|||
|
|
The link you followed is either outdated, inaccurate,\n\
|
|||
|
|
or the server has been instructed not to let you have it.\n\
|
|||
|
|
</BODY></HTML>\n");
|
|||
|
|
return 0;
|
|||
|
|
}
|