src/common/md5_int.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * md5_int.h
   4  *        Internal headers for fallback implementation of MD5
   5  *
   6  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * IDENTIFICATION
  10  *                src/common/md5_int.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14
  15 /*         $KAME: md5.h,v 1.3 2000/02/22 14:01:18 itojun Exp $     */
  16
  17 /*
  18  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  19  * All rights reserved.
  20  *
  21  * Redistribution and use in source and binary forms, with or without
  22  * modification, are permitted provided that the following conditions
  23  * are met:
  24  * 1. Redistributions of source code must retain the above copyright
  25  *        notice, this list of conditions and the following disclaimer.
  26  * 2. Redistributions in binary form must reproduce the above copyright
  27  *        notice, this list of conditions and the following disclaimer in the
  28  *        documentation and/or other materials provided with the distribution.
  29  * 3. Neither the name of the project nor the names of its contributors
  30  *        may be used to endorse or promote products derived from this software
  31  *        without specific prior written permission.
  32  *
  33  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  34  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  35  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  36  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  37  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  41  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  42  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  43  * SUCH DAMAGE.
  44  */
  45
  46 #ifndef PG_MD5_INT_H
  47 #define PG_MD5_INT_H
  48
  49 #include "common/md5.h"
  50
  51 #define MD5_BUFLEN 64
  52
  53 /* Context data for MD5 */
  54 typedef struct
  55 {
  56         union
  57         {
  58                 uint32          md5_state32[4];
  59                 uint8           md5_state8[16];
  60         }                       md5_st;
  61
  62 #define md5_sta     md5_st.md5_state32[0]
  63 #define md5_stb     md5_st.md5_state32[1]
  64 #define md5_stc     md5_st.md5_state32[2]
  65 #define md5_std     md5_st.md5_state32[3]
  66 #define md5_st8     md5_st.md5_state8
  67
  68         union
  69         {
  70                 uint64          md5_count64;
  71                 uint8           md5_count8[8];
  72         }                       md5_count;
  73 #define md5_n   md5_count.md5_count64
  74 #define md5_n8  md5_count.md5_count8
  75
  76         unsigned int md5_i;
  77         uint8           md5_buf[MD5_BUFLEN];
  78 } pg_md5_ctx;
  79
  80 /* Interface routines for MD5 */
  81 extern void pg_md5_init(pg_md5_ctx *ctx);
  82 extern void pg_md5_update(pg_md5_ctx *ctx, const uint8 *data, size_t len);
  83 extern void pg_md5_final(pg_md5_ctx *ctx, uint8 *dest);
  84
  85 #endif                                                  /* PG_MD5_INT_H */