kc3-lang/libjpeg-turbo/md5/md5.h

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• Hash : 51f94cab
  Author :
  Date : 2018-03-31T10:36:06
  

  Build: Use Colin Plumb's public domain MD5 code
  
  ... instead of the RSA code, the license for which contains an
  advertising clause.  It is strongly believed that the RSA advertising
  clause is innocuous, because:
  
  - A clarification from RSA
    (http://www.ietf.org/ietf-ftp/IPR/RSA-MD-all), published in 2000,
    stated:
  
    "Implementations of these message-digest algorithms, including
    implementations derived from the reference C code in RFC-1319,
    RFC-1320, and RFC-1321, may be made, used, and sold without license
    from RSA for any purpose."
  
    Referring to the opinion from Fedora's legal team
    (https://fedoraproject.org/wiki/Licensing:FAQ?rd=Licensing/FAQ#What_about_the_RSA_license_on_their_MD5_implementation.3F_Isn.27t_that_GPL-incompatible.3F),
    this means that md5.c and md5.h, which were derived from the original
    RFC 1321 reference code (http://www.faqs.org/rfcs/rfc1321.html), can
    be used without the RSA license.
  
  - In the context of libjpeg-turbo, RSA's MD5 code was used only in the
    build/test system.  It was not part of the libjpeg-turbo binary
    distribution, and thus the only "material mentioning or referencing"
    the MD5 code was the libjpeg-turbo source code, which-- by virtue of
    including RSA's original copyright headers-- properly attributed the
    code as required under the RSA license.
  
  However, in light of the open source community's tendency to have
  knee-jerk reactions to stuff like this, it would've been necessary to
  include the above explanation in our source tree in order to head off
  potential FUD, and a simple fix is always better than a complex
  explanation.
  
  This commit also assigns the 3-clause BSD license to my modifications of
  the MD5 code.  This license is the same one used by md5cmp and other
  parts of the build system.
  

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• md5/md5.h

• /*
   * libjpeg-turbo Modifications:
   * Copyright (C)2018 D. R. Commander.  All Rights Reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * - Redistributions of source code must retain the above copyright notice,
   *   this list of conditions and the following disclaimer.
   * - 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.
   * - Neither the name of the libjpeg-turbo Project nor the names of its
   *   contributors may be used to endorse or promote products derived from this
   *   software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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.
   */
  
  #ifndef MD5_H
  #define MD5_H
  
  #include <sys/types.h>
  #ifdef __amigaos4__
  #include <machine/endian.h>
  #endif
  
  /*  On machines where "long" is 64 bits, we need to declare
      uint32 as something guaranteed to be 32 bits.  */
  
  typedef unsigned int uint32;
  
  typedef struct MD5Context {
    uint32 buf[4];
    uint32 bits[2];
    unsigned char in[64];
  } MD5_CTX;
  
  extern void MD5Init(struct MD5Context *ctx);
  extern void MD5Update(struct MD5Context *ctx, unsigned char *buf,
                        unsigned int len);
  extern void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
  extern void MD5Transform(uint32 buf[4], uint32 in[16]);
  extern char *MD5File(const char *, char *);
  extern char *MD5FileChunk(const char *, char *, off_t, off_t);
  
  #endif /* !MD5_H */
  

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