hgomez      01/05/18 09:49:47

  Added:       jk/src/native/common jk_md5.c jk_md5.h
  Log:
  md5 support :
  - Under Apache we use the ap_md5 functions
  - Under IIS/NES, use code grabbed from apache web-server until someone
    map it to equivalent WebServer APIs
  
  Revision  Changes    Path
  1.1                  jakarta-tomcat-connectors/jk/src/native/common/jk_md5.c
  
  Index: jk_md5.c
  ===================================================================
  /*
   * This is work is derived from material Copyright RSA Data Security, Inc.
   *
   * The RSA copyright statement and Licence for that original material is
   * included below. This is followed by the Apache copyright statement and
   * licence for the modifications made to that material.
   */
  
  /* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
   */
  
  /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
     rights reserved.
  
     License to copy and use this software is granted provided that it
     is identified as the "RSA Data Security, Inc. MD5 Message-Digest
     Algorithm" in all material mentioning or referencing this software
     or this function.
  
     License is also granted to make and use derivative works provided
     that such works are identified as "derived from the RSA Data
     Security, Inc. MD5 Message-Digest Algorithm" in all material
     mentioning or referencing the derived work.
  
     RSA Data Security, Inc. makes no representations concerning either
     the merchantability of this software or the suitability of this
     software for any particular purpose. It is provided "as is"
     without express or implied warranty of any kind.
  
     These notices must be retained in any copies of any part of this
     documentation and/or software.
   */
  
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000 The Apache Software Foundation.  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.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact [EMAIL PROTECTED]
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
   * ITS 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * Portions of this software are based upon public domain software
   * originally written at the National Center for Supercomputing Applications,
   * University of Illinois, Urbana-Champaign.
   */
  
  /*
   * The ap_MD5Encode() routine uses much code obtained from the FreeBSD 3.0
   * MD5 crypt() function, which is licenced as follows:
   * ----------------------------------------------------------------------------
   * "THE BEER-WARE LICENSE" (Revision 42):
   * <[EMAIL PROTECTED]> wrote this file.  As long as you retain this notice you
   * can do whatever you want with this stuff. If we meet some day, and you think
   * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
   * ----------------------------------------------------------------------------
   */
  
  /***************************************************************************
   * Description: MD5 encoding wrapper                                       *
   * Author:      Henri Gomez <[EMAIL PROTECTED]>                               *
   * Version:     $Revision: 1.1 $                                           *
   ***************************************************************************/
  
  /*
   * JK MD5 Encoding function (jk_MD5Encode)
   *
   * Jk delegate MD5 encoding to ap_MD5Encode when used in Apache Web-Server.
   * When another web-server is used like NES/IIS, we should use corresponding calls.
   * NES/IIS specialists will add the necessary code but until that, I reused the code
   * from Apache HTTP server.
   * 
   * Nota: If you use an EBCDIC system without Apache, you'll have to use MD5 encoding
   * corresponding call or have a ebcdic2ascii() functions somewhere.
   * For example current AS/400 have MD5 encoding support APIs but olders not....
   */
   
  #include "jk_global.h"
  #include "jk_md5.h"
  
  char * JK_METHOD jk_hextocstr(unsigned char *org, char * dst, int n)
  {
      char * os = dst;
      unsigned char v;
      static unsigned char zitohex[] = "0123456789ABCDEF";
  
      while (--n >= 0) {
      v = *org++;
      *dst++ = zitohex[v >> 4];
      *dst++ = zitohex[v&0x0f];
      }
      *dst = 0;
  
      return (os);
  }
  
  #ifndef USE_APACHE_MD5 
  
  /* Constants for MD5Transform routine.
   */
  
  #define S11 7
  #define S12 12
  #define S13 17
  #define S14 22
  #define S21 5
  #define S22 9
  #define S23 14
  #define S24 20
  #define S31 4
  #define S32 11
  #define S33 16
  #define S34 23
  #define S41 6
  #define S42 10
  #define S43 15
  #define S44 21
  
  static void MD5Transform(JK_UINT4 state[4], const unsigned char block[64]);
  static void Encode(unsigned char *output, const JK_UINT4 *input, unsigned int len);
  static void Decode(JK_UINT4 *output, const unsigned char *input, unsigned int len);
  static void jk_MD5Init(JK_MD5_CTX *context);
  static void jk_MD5Update(JK_MD5_CTX *context, const unsigned char *input, unsigned 
int inputLen);
  static void jk_MD5Final(unsigned char digest[JK_MD5_DIGESTSIZE], JK_MD5_CTX 
*context);
  
  static unsigned char PADDING[64] =
  {
      0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
  };
  
  /* F, G, H and I are basic MD5 functions.
   */
  #define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
  #define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
  #define H(x, y, z) ((x) ^ (y) ^ (z))
  #define I(x, y, z) ((y) ^ ((x) | (~z)))
  
  /* ROTATE_LEFT rotates x left n bits.
   */
  #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
  
  /* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
     Rotation is separate from addition to prevent recomputation.
   */
  #define FF(a, b, c, d, x, s, ac) { \
   (a) += F ((b), (c), (d)) + (x) + (JK_UINT4)(ac); \
   (a) = ROTATE_LEFT ((a), (s)); \
   (a) += (b); \
    }
  #define GG(a, b, c, d, x, s, ac) { \
   (a) += G ((b), (c), (d)) + (x) + (JK_UINT4)(ac); \
   (a) = ROTATE_LEFT ((a), (s)); \
   (a) += (b); \
    }
  #define HH(a, b, c, d, x, s, ac) { \
   (a) += H ((b), (c), (d)) + (x) + (JK_UINT4)(ac); \
   (a) = ROTATE_LEFT ((a), (s)); \
   (a) += (b); \
    }
  #define II(a, b, c, d, x, s, ac) { \
   (a) += I ((b), (c), (d)) + (x) + (JK_UINT4)(ac); \
   (a) = ROTATE_LEFT ((a), (s)); \
   (a) += (b); \
    }
  
  /* MD5 initialization. Begins an MD5 operation, writing a new context.
   */
  static void jk_MD5Init(JK_MD5_CTX *context)
  {
      context->count[0] = context->count[1] = 0;
      /* Load magic initialization constants. */
      context->state[0] = 0x67452301;
      context->state[1] = 0xefcdab89;
      context->state[2] = 0x98badcfe;
      context->state[3] = 0x10325476;
  }
  
  /* MD5 block update operation. Continues an MD5 message-digest
     operation, processing another message block, and updating the
     context.
   */
  static void jk_MD5Update(JK_MD5_CTX *context, const unsigned char *input,
                              unsigned int inputLen)
  {
      unsigned int i, idx, partLen;
  
      /* Compute number of bytes mod 64 */
      idx = (unsigned int) ((context->count[0] >> 3) & 0x3F);
  
      /* Update number of bits */
      if ((context->count[0] += ((JK_UINT4) inputLen << 3))
        < ((JK_UINT4) inputLen << 3)) {
        context->count[1]++;
      }
      context->count[1] += (JK_UINT4) inputLen >> 29;
  
      partLen = 64 - idx;
  
      /* Transform as many times as possible. */
  #ifndef CHARSET_EBCDIC
      if (inputLen >= partLen) {
        memcpy(&context->buffer[idx], input, partLen);
        MD5Transform(context->state, context->buffer);
  
        for (i = partLen; i + 63 < inputLen; i += 64) {
            MD5Transform(context->state, &input[i]);
        }
  
        idx = 0;
      }
      else {
        i = 0;
      }
  
      /* Buffer remaining input */
      memcpy(&context->buffer[idx], &input[i], inputLen - i);
  #else /*CHARSET_EBCDIC*/
      if (inputLen >= partLen) {
        ebcdic2ascii(&context->buffer[idx], input, partLen);
        MD5Transform(context->state, context->buffer);
  
        for (i = partLen; i + 63 < inputLen; i += 64) {
            unsigned char inp_tmp[64];
            ebcdic2ascii(inp_tmp, &input[i], 64);
            MD5Transform(context->state, inp_tmp);
        }
  
        idx = 0;
      }
      else {
        i = 0;
      }
  
      /* Buffer remaining input */
      ebcdic2ascii(&context->buffer[idx], &input[i], inputLen - i);
  #endif /*CHARSET_EBCDIC*/
  }
  
  /* MD5 finalization. Ends an MD5 message-digest operation, writing the
     the message digest and zeroizing the context.
   */
  void JK_METHOD jk_MD5Final(unsigned char digest[16], JK_MD5_CTX *context)
  {
      unsigned char bits[8];
      unsigned int idx, padLen;
  
  
      /* Save number of bits */
      Encode(bits, context->count, 8);
  
  #ifdef CHARSET_EBCDIC
      /* XXX: @@@: In order to make this no more complex than necessary,
       * this kludge converts the bits[] array using the ascii-to-ebcdic
       * table, because the following jk_MD5Update() re-translates
       * its input (ebcdic-to-ascii).
       * Otherwise, we would have to pass a "conversion" flag to jk_MD5Update()
       */
      ascii2ebcdic(bits,bits,8);
  
      /* Since everything is converted to ascii within jk_MD5Update(), 
       * the initial 0x80 (PADDING[0]) must be stored as 0x20 
       */
      PADDING[0] = os_toebcdic[0x80];
  #endif /*CHARSET_EBCDIC*/
  
      /* Pad out to 56 mod 64. */
      idx = (unsigned int) ((context->count[0] >> 3) & 0x3f);
      padLen = (idx < 56) ? (56 - idx) : (120 - idx);
      jk_MD5Update(context, (const unsigned char *)PADDING, padLen);
  
      /* Append length (before padding) */
      jk_MD5Update(context, (const unsigned char *)bits, 8);
  
      /* Store state in digest */
      Encode(digest, context->state, 16);
  
      /* Zeroize sensitive information. */
      memset(context, 0, sizeof(*context));
  }
  
  /* MD5 basic transformation. Transforms state based on block. */
  static void MD5Transform(JK_UINT4 state[4], const unsigned char block[64])
  {
      JK_UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
  
      Decode(x, block, 64);
  
      /* Round 1 */
      FF(a, b, c, d, x[0], S11, 0xd76aa478);    /* 1 */
      FF(d, a, b, c, x[1], S12, 0xe8c7b756);    /* 2 */
      FF(c, d, a, b, x[2], S13, 0x242070db);    /* 3 */
      FF(b, c, d, a, x[3], S14, 0xc1bdceee);    /* 4 */
      FF(a, b, c, d, x[4], S11, 0xf57c0faf);    /* 5 */
      FF(d, a, b, c, x[5], S12, 0x4787c62a);    /* 6 */
      FF(c, d, a, b, x[6], S13, 0xa8304613);    /* 7 */
      FF(b, c, d, a, x[7], S14, 0xfd469501);    /* 8 */
      FF(a, b, c, d, x[8], S11, 0x698098d8);    /* 9 */
      FF(d, a, b, c, x[9], S12, 0x8b44f7af);    /* 10 */
      FF(c, d, a, b, x[10], S13, 0xffff5bb1);   /* 11 */
      FF(b, c, d, a, x[11], S14, 0x895cd7be);   /* 12 */
      FF(a, b, c, d, x[12], S11, 0x6b901122);   /* 13 */
      FF(d, a, b, c, x[13], S12, 0xfd987193);   /* 14 */
      FF(c, d, a, b, x[14], S13, 0xa679438e);   /* 15 */
      FF(b, c, d, a, x[15], S14, 0x49b40821);   /* 16 */
  
      /* Round 2 */
      GG(a, b, c, d, x[1], S21, 0xf61e2562);    /* 17 */
      GG(d, a, b, c, x[6], S22, 0xc040b340);    /* 18 */
      GG(c, d, a, b, x[11], S23, 0x265e5a51);   /* 19 */
      GG(b, c, d, a, x[0], S24, 0xe9b6c7aa);    /* 20 */
      GG(a, b, c, d, x[5], S21, 0xd62f105d);    /* 21 */
      GG(d, a, b, c, x[10], S22, 0x2441453);    /* 22 */
      GG(c, d, a, b, x[15], S23, 0xd8a1e681);   /* 23 */
      GG(b, c, d, a, x[4], S24, 0xe7d3fbc8);    /* 24 */
      GG(a, b, c, d, x[9], S21, 0x21e1cde6);    /* 25 */
      GG(d, a, b, c, x[14], S22, 0xc33707d6);   /* 26 */
      GG(c, d, a, b, x[3], S23, 0xf4d50d87);    /* 27 */
      GG(b, c, d, a, x[8], S24, 0x455a14ed);    /* 28 */
      GG(a, b, c, d, x[13], S21, 0xa9e3e905);   /* 29 */
      GG(d, a, b, c, x[2], S22, 0xfcefa3f8);    /* 30 */
      GG(c, d, a, b, x[7], S23, 0x676f02d9);    /* 31 */
      GG(b, c, d, a, x[12], S24, 0x8d2a4c8a);   /* 32 */
  
      /* Round 3 */
      HH(a, b, c, d, x[5], S31, 0xfffa3942);    /* 33 */
      HH(d, a, b, c, x[8], S32, 0x8771f681);    /* 34 */
      HH(c, d, a, b, x[11], S33, 0x6d9d6122);   /* 35 */
      HH(b, c, d, a, x[14], S34, 0xfde5380c);   /* 36 */
      HH(a, b, c, d, x[1], S31, 0xa4beea44);    /* 37 */
      HH(d, a, b, c, x[4], S32, 0x4bdecfa9);    /* 38 */
      HH(c, d, a, b, x[7], S33, 0xf6bb4b60);    /* 39 */
      HH(b, c, d, a, x[10], S34, 0xbebfbc70);   /* 40 */
      HH(a, b, c, d, x[13], S31, 0x289b7ec6);   /* 41 */
      HH(d, a, b, c, x[0], S32, 0xeaa127fa);    /* 42 */
      HH(c, d, a, b, x[3], S33, 0xd4ef3085);    /* 43 */
      HH(b, c, d, a, x[6], S34, 0x4881d05);     /* 44 */
      HH(a, b, c, d, x[9], S31, 0xd9d4d039);    /* 45 */
      HH(d, a, b, c, x[12], S32, 0xe6db99e5);   /* 46 */
      HH(c, d, a, b, x[15], S33, 0x1fa27cf8);   /* 47 */
      HH(b, c, d, a, x[2], S34, 0xc4ac5665);    /* 48 */
  
      /* Round 4 */
      II(a, b, c, d, x[0], S41, 0xf4292244);    /* 49 */
      II(d, a, b, c, x[7], S42, 0x432aff97);    /* 50 */
      II(c, d, a, b, x[14], S43, 0xab9423a7);   /* 51 */
      II(b, c, d, a, x[5], S44, 0xfc93a039);    /* 52 */
      II(a, b, c, d, x[12], S41, 0x655b59c3);   /* 53 */
      II(d, a, b, c, x[3], S42, 0x8f0ccc92);    /* 54 */
      II(c, d, a, b, x[10], S43, 0xffeff47d);   /* 55 */
      II(b, c, d, a, x[1], S44, 0x85845dd1);    /* 56 */
      II(a, b, c, d, x[8], S41, 0x6fa87e4f);    /* 57 */
      II(d, a, b, c, x[15], S42, 0xfe2ce6e0);   /* 58 */
      II(c, d, a, b, x[6], S43, 0xa3014314);    /* 59 */
      II(b, c, d, a, x[13], S44, 0x4e0811a1);   /* 60 */
      II(a, b, c, d, x[4], S41, 0xf7537e82);    /* 61 */
      II(d, a, b, c, x[11], S42, 0xbd3af235);   /* 62 */
      II(c, d, a, b, x[2], S43, 0x2ad7d2bb);    /* 63 */
      II(b, c, d, a, x[9], S44, 0xeb86d391);    /* 64 */
  
      state[0] += a;
      state[1] += b;
      state[2] += c;
      state[3] += d;
  
      /* Zeroize sensitive information. */
      memset(x, 0, sizeof(x));
  }
  
  /* Encodes input (JK_UINT4) into output (unsigned char). Assumes len is
     a multiple of 4.
   */
  static void Encode(unsigned char *output, const JK_UINT4 *input, unsigned int len)
  {
      unsigned int i, j;
      JK_UINT4 k;
  
      for (i = 0, j = 0; j < len; i++, j += 4) {
        k = input[i];
        output[j] = (unsigned char) (k & 0xff);
        output[j + 1] = (unsigned char) ((k >> 8) & 0xff);
        output[j + 2] = (unsigned char) ((k >> 16) & 0xff);
        output[j + 3] = (unsigned char) ((k >> 24) & 0xff);
      }
  }
  
  /* Decodes input (unsigned char) into output (JK_UINT4). Assumes len is
   * a multiple of 4.
   */
  static void Decode(JK_UINT4 *output, const unsigned char *input, unsigned int len)
  {
      unsigned int i, j;
  
      for (i = 0, j = 0; j < len; i++, j += 4)
        output[i] = ((JK_UINT4) input[j]) | (((JK_UINT4) input[j + 1]) << 8) |
            (((JK_UINT4) input[j + 2]) << 16) | (((JK_UINT4) input[j + 3]) << 24);
  }
  
  /*
   * The following MD5 password encryption code was largely borrowed from
   * the FreeBSD 3.0 /usr/src/lib/libcrypt/crypt.c file, which is
   * licenced as stated at the top of this file.
   */
  static void jk_to64(char *s, unsigned long v, int n)
  {
      static unsigned char itoa64[] =         /* 0 ... 63 => ASCII - 64 */
        "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  
      while (--n >= 0) {
        *s++ = itoa64[v&0x3f];
        v >>= 6;
      }
  }
  
  char * JK_METHOD jk_md5(const unsigned char *org, const unsigned char *org2, char 
*dst)
  {
        JK_MD5_CTX  ctx;
        char            buf[JK_MD5_DIGESTSIZE + 1];
  
      jk_MD5Init(&ctx);
      jk_MD5Update(&ctx, org, strlen(org));
  
        if (org2 != NULL)
                jk_MD5Update(&ctx, org2, strlen(org2));
  
      jk_MD5Final(buf, &ctx);
        return (jk_hextocstr(buf, dst, JK_MD5_DIGESTSIZE));
  }
  
  #else /* USE_APACHE_MD5 */
  
  #include "ap_config.h"
  #include "httpd.h"
  #include "ap_md5.h"
  
  char * JK_METHOD jk_md5(const unsigned char *org, const unsigned char *org2, char 
*dst)
  {
        AP_MD5_CTX ctx;
        char       buf[JK_MD5_DIGESTSIZE + 1];
  
      ap_MD5Init(&ctx);
      ap_MD5Update(&ctx, org, strlen(org));
  
        if (org2 != NULL)
                ap_MD5Update(&ctx, org2, strlen(org2));
  
      ap_MD5Final(dst, &ctx);
        return (jk_hextocstr(buf, dst, JK_MD5_DIGESTSIZE));
  }
  
  #endif /* USE_APACHE_MD5 */
  
  /* Test values:
   * ""                  D4 1D 8C D9 8F 00 B2 04  E9 80 09 98 EC F8 42 7E
   * "a"                 0C C1 75 B9 C0 F1 B6 A8  31 C3 99 E2 69 77 26 61
   * "abc                90 01 50 98 3C D2 4F B0  D6 96 3F 7D 28 E1 7F 72
   * "message digest"    F9 6B 69 7D 7C B7 93 8D  52 5A 2F 31 AA F1 61 D0
   *
   */
  
  #ifdef TEST_JKMD5
  
  main(int argc, char ** argv)
  {
        char xxx[(2 * JK_MD5_DIGESTSIZE) + 1];
  
        if (argc > 1)
                printf("%s => %s\n", argv[1], jk_md5(argv[1], NULL, xxx));
  }
  
  #endif 
  
  
  
  1.1                  jakarta-tomcat-connectors/jk/src/native/common/jk_md5.h
  
  Index: jk_md5.h
  ===================================================================
  /*
   * This is work is derived from material Copyright RSA Data Security, Inc.
   *
   * The RSA copyright statement and Licence for that original material is
   * included below. This is followed by the Apache copyright statement and
   * licence for the modifications made to that material.
   */
  
  /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
     rights reserved.
  
     License to copy and use this software is granted provided that it
     is identified as the "RSA Data Security, Inc. MD5 Message-Digest
     Algorithm" in all material mentioning or referencing this software
     or this function.
  
     License is also granted to make and use derivative works provided
     that such works are identified as "derived from the RSA Data
     Security, Inc. MD5 Message-Digest Algorithm" in all material
     mentioning or referencing the derived work.
  
     RSA Data Security, Inc. makes no representations concerning either
     the merchantability of this software or the suitability of this
     software for any particular purpose. It is provided "as is"
     without express or implied warranty of any kind.
  
     These notices must be retained in any copies of any part of this
     documentation and/or software.
   */
  
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000 The Apache Software Foundation.  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.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact [EMAIL PROTECTED]
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
   * ITS 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * Portions of this software are based upon public domain software
   * originally written at the National Center for Supercomputing Applications,
   * University of Illinois, Urbana-Champaign.
   */
  
  #ifndef JK_APACHE_MD5_H
  #define JK_APACHE_MD5_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* MD5.H - header file for MD5.C */
  
  #define JK_MD5_DIGESTSIZE 16
  
  /* JK_UINT4 defines a four byte word */
  typedef unsigned int JK_UINT4;
  
  /* MD5 context. */
  typedef struct {
      JK_UINT4 state[4];                /* state (ABCD) */
      JK_UINT4 count[2];                /* number of bits, modulo 2^64 (lsb first) */
      unsigned char buffer[64]; /* input buffer */
  } JK_MD5_CTX;
  
  /*
   * Define the Magic String prefix that identifies a password as being
   * hashed using our algorithm.
   */
  #define JK_MD5PW_ID "$apr1$"
  #define JK_MD5PW_IDLEN 6
  
  char * JK_METHOD jk_hextocstr(unsigned char *org, char * dst, int n);
  char * JK_METHOD jk_md5(const unsigned char *org, const unsigned char *org2, char 
*dst);
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif        /* !JK_APACHE_MD5_H */
  
  
  

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