
SAMHAIN distributed host monitoring system
------------------------------------------

Copyright (C) 1999-2009 Rainer Wichmann                                    
                                                                      
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA

On Debian-based systems, see /usr/share/common-licenses

Incorporated code
-----------------

  (i) Support for the TIGER cryptographic checksum algorithm
  is provided by the reference implementation, which includes 
  the following statement:

	 * Tiger: A Fast New Hash Function
	 *
	 * Ross Anderson and Eli Biham
	 *
	 * Tiger has no usage restrictions nor patents. It can be used freely, 
	 * with the reference implementation, 
	 * with other implementations or with 
	 * a modification to the reference implementation (as long as it still 
	 * implements Tiger). We only ask you to let us know about your 
	 * implementation and to cite the origin of Tiger and of the reference 
	 * implementation. 
	 *
	 * The authors' home pages can be found both in 
	 * http://www.cs.technion.ac.il/~biham/ and in 
	 * http://www.cl.cam.ac.uk/users/rja14/.
	 * The authors' email addresses are biham@cs.technion.ac.il 
	 * and rja14@cl.cam.ac.uk.



  (ii) Support for testing write access by untrusted users
  to any element in the path of a file is provided by the
  public domain trustfile library, which includes the following
  statement:

	 * Author information:
	 * Matt Bishop
	 * Department of Computer Science
	 * University of California at Davis
	 * Davis, CA  95616-8562
	 * phone (916) 752-8060
	 * email bishop@cs.ucdavis.edu
	 *
	 * This code is placed in the public domain.  I do ask that
	 * you keep my name associated with it, that you not represent
	 * it as written by you, and that you preserve these comments.
	 * This software is provided "as is" and without any guarantees
	 * of any sort.

  (iii) Support for big integer arithmetic is provided by the bignum
  package (v. 1.2) by Henrik.Johansson@Nexus.Comm.SE, 
  which includes the following statement:

        * Everyone is allowed to distribute this package to anyone
        * else, as long as all changes are recorded and mentioned.
        * If you are including this in a commercial product, be sure
        * to distribute _all_ of the package with the product.
	*
        * (...writing more stuff here later, but I guess everyone
        * knows the approximate contents of it - no warranty, no
        * charge, and so on.  I guess it is like the GNU concept.
        * Read that for further details...)

  (iv) Support for compression is provided by the (mini) LZO library,
  which includes the following statement:

       * Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
       * Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
       * Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
       * Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
       * 
       * The LZO library 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.
       * 
       * The LZO library 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 the LZO library; see the file COPYING.
       * If not, write to the Free Software Foundation, Inc.,
       * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
       * 
       * Markus F.X.J. Oberhumer
       * <markus.oberhumer@jk.uni-linz.ac.at>
       * http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html

  (v) Support for determining the type of a file system is provided by
  code from the GNU find(1) utility which includes the following statement:

   /* fstype.c -- determine type of filesystems that files are on
      Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.

      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, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA  */

   /* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */


  (vi) Support for the MD5 hash algorithm is provided by code
  from busybox which is distributed under the GPL.

   /* md5.c - Functions to compute MD5 message digest of files or memory blocks
    *         according to the definition of MD5 in RFC 1321 from April 1992.
    * Copyright (C) 1995, 1996 Free Software Foundation, Inc.
    *
    * NOTE: The canonical source of this file is maintained with the GNU C
    * Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
    *
    * 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, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
    */

   /* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.  */


  (vi) Support for the SHA-1 hash algorithm is provided by code
  from mhash which includes the following statement:

       /* sha.c - Implementation of the Secure Hash Algorithm
        *
        * Copyright (C) 1995, A.M. Kuchling
        *
        * Distribute and use freely; there are no restrictions on further
        * dissemination and usage except those imposed by the laws of your
        * country of residence.
        *
        * Adapted to pike and some cleanup by Niels Möller.
        */

       /* $Id: sha1.c,v 1.2 2001/01/24 08:20:29 nmav Exp $ */

       /* SHA: NIST's Secure Hash Algorithm */

       /* Based on SHA code originally posted to sci.crypt by Peter Gutmann
          in message <30ajo5$oe8@ccu2.auckland.ac.nz>.
          Modified to test for endianness on creation of SHA objects by AMK.
          Also, the original specification of SHA was found to have a weakness
          by NSA/NIST.  This code implements the fixed version of SHA.
       */

  (vii) Support for AVL Trees is provided by code
  from AVLTree which includes the following statement:

    /* zAVLTree.h: Header file for zAVLTrees.
     * Copyright (C) 1998,2001  Michael H. Buselli
     * This is version 0.1.3 (alpha).
     * Generated from $Id: xAVLTree.h.sh,v 1.5 2001/06/07 06:58:28 cosine Exp $
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Library General Public
     * License as published by the Free Software Foundation; either
     * version 2 of the License, or (at your option) any later version.
     *
     * This library 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
     * Library General Public License for more details.
     *
     * You should have received a copy of the GNU Library General Public
     * License along with this library; if not, write to the Free
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
     *
     * The author of this library can be reached at the following address:
     * Michael H. Buselli
     * 30051 N. Waukegan Rd. Apt. 103
     * Lake Bluff, IL  60044-5412
     *
     * Or you can send email to <cosine@cosine.org>.
     * The official web page for this product is:
     * http://www.cosine.org/project/AVLTree/
     */

   (viii) The modules sh_userfiles.c and sh_mounts.c have been
   contributed by Eircom Net Computer Incident Response Team and
   are authored by Jerry Connolly and Cian Synnott, respectively. 

   They are released 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:
   
   "Feel free to GPL those files -
   they were fully released by our company to the project.
   
   Cian
   
   -- 
   Cian Synnott
   Eircom Net Computer Incident Response Team"

   (ix) Enhanced functionality for the SUID check has been
   contributed with a patch copyright by Rob Rati <rob.rati@motorola.com>.
   The patch is licensed under the GPL with the following statement:

   "Here is the patch with the aforementioned feature enhancements, and I 
   license all changes within this patch under the GNU Public License (GPL) 
   GNU General Public License as published by the Free Software Foundation; 
   either version 2 of the License, or (at your option) any later version."

   (x) Unit testing uses the 'cutest' framework by Asim Jalis, (files
   CuTest.h, CuTest.c, make-tests.sh) which is licensed under the zlib license:

     * Copyright (c) 2003 Asim Jalis
     *
     * This software is provided 'as-is', without any express or implied
     * warranty. In no event will the authors be held liable for any damages
     * arising from the use of this software.
     *
     * Permission is granted to anyone to use this software for any purpose,
     * including commercial applications, and to alter it and redistribute it
     * freely, subject to the following restrictions:
     *
     * 1. The origin of this software must not be misrepresented; you must not
     * claim that you wrote the original software. If you use this software in
     * a product, an acknowledgment in the product documentation would be
     * appreciated but is not required.
     *
     * 2. Altered source versions must be plainly marked as such, and must not
     * be misrepresented as being the original software.
     *
     * 3. This notice may not be removed or altered from any source
     * distribution.

   (xi) The dnmalloc library used by samhain is Copyright (C) 2005, Yves Younan, 
   Wouter Joosen and Frank Piessens, and licensed under the LGPL:

     *   This library is free software; you can redistribute it and/or
     *   modify it under the terms of the GNU Lesser General Public
     *   License as published by the Free Software Foundation; either
     *   version 2.1 of the License, or (at your option) any later version.
     *
     *   This library 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
     *   Lesser General Public License for more details.
     *
     *   You should have received a copy of the GNU Lesser General Public
     *   License along with this library; if not, write to the Free Software
     *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  

Other
-----

  Depending on the compilation options used, samhain may use the 
  SRP authentication algorithm (in an independent implementation,
  without any use of code from the SRP software).
  The original SRP software contains the following license statement:

    The SRP License
    ---------------
  
    SRP and all related technologies are free for both commercial and
    non-commercial use.  They are distributed under a standard
    X11-style Open Source license which is shown below.
    
    The SRP distribution contains parts from various freeware
    packages; these parts fall under both the SRP Open Source license
    and any existing licenses.  Care has been taken to ensure that
    these licenses are compatible with Open Source distribution,
    but it is the responsibility of the licensee to comply with these
    licenses.  The file "Copyrights" contains a list of the copyrights
    incorporated by portions of the software.
    
    This software is covered under the following copyright:
  
    /*
     * Copyright (c) 1997-1999  The Stanford SRP Authentication Project
     * All Rights Reserved.
     *
     * Permission is hereby granted, free of charge, to any person obtaining
     * a copy of this software and associated documentation files (the
     * "Software"), to deal in the Software without restriction, including
     * without limitation the rights to use, copy, modify, merge, publish,
     * distribute, sublicense, and/or sell copies of the Software, and to
     * permit persons to whom the Software is furnished to do so, subject to
     * the following conditions:
     *
     * The above copyright notice and this permission notice shall be
     * included in all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
     * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
     * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
     *
     * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
     * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
     * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
     * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
     * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     *
     * In addition, the following conditions apply:
     *
     * 1. Any software that incorporates the SRP authentication technology
     *    must display the following acknowlegment:
     *    "This product uses the 'Secure Remote Password' cryptographic
     *     authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)."
     *
     * 2. Any software that incorporates all or part of the SRP distribution
     *    itself must also display the following acknowledgment:
     *    "This product includes software developed by Tom Wu and Eugene
     *     Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)."
     *
     * 3. Redistributions in source or binary form must retain an intact copy
     *    of this copyright notice and list of conditions.
     */
