mirror of
https://git.postgresql.org/git/postgresql.git
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d08741eab5
are now separate files "postgres.h" and "postgres_fe.h", which are meant to be the primary include files for backend .c files and frontend .c files respectively. By default, only include files meant for frontend use are installed into the installation include directory. There is a new make target 'make install-all-headers' that adds the whole content of the src/include tree to the installed fileset, for use by people who want to develop server-side code without keeping the complete source tree on hand. Cleaned up a whole lot of crufty and inconsistent header inclusions.
307 lines
10 KiB
C
307 lines
10 KiB
C
/* $Id: md5.c,v 1.4 2001/02/10 02:31:25 tgl Exp $ */
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/* $KAME: md5.c,v 1.3 2000/02/22 14:01:17 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "postgres.h"
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#include "md5.h"
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#define SHIFT(X, s) (((X) << (s)) | ((X) >> (32 - (s))))
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#define F(X, Y, Z) (((X) & (Y)) | ((~X) & (Z)))
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#define G(X, Y, Z) (((X) & (Z)) | ((Y) & (~Z)))
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#define H(X, Y, Z) ((X) ^ (Y) ^ (Z))
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#define I(X, Y, Z) ((Y) ^ ((X) | (~Z)))
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#define ROUND1(a, b, c, d, k, s, i) { \
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(a) = (a) + F((b), (c), (d)) + X[(k)] + T[(i)]; \
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(a) = SHIFT((a), (s)); \
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(a) = (b) + (a); \
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}
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#define ROUND2(a, b, c, d, k, s, i) { \
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(a) = (a) + G((b), (c), (d)) + X[(k)] + T[(i)]; \
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(a) = SHIFT((a), (s)); \
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(a) = (b) + (a); \
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}
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#define ROUND3(a, b, c, d, k, s, i) { \
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(a) = (a) + H((b), (c), (d)) + X[(k)] + T[(i)]; \
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(a) = SHIFT((a), (s)); \
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(a) = (b) + (a); \
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}
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#define ROUND4(a, b, c, d, k, s, i) { \
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(a) = (a) + I((b), (c), (d)) + X[(k)] + T[(i)]; \
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(a) = SHIFT((a), (s)); \
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(a) = (b) + (a); \
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}
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#define Sa 7
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#define Sb 12
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#define Sc 17
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#define Sd 22
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#define Se 5
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#define Sf 9
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#define Sg 14
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#define Sh 20
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#define Si 4
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#define Sj 11
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#define Sk 16
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#define Sl 23
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#define Sm 6
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#define Sn 10
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#define So 15
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#define Sp 21
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#define MD5_A0 0x67452301
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#define MD5_B0 0xefcdab89
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#define MD5_C0 0x98badcfe
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#define MD5_D0 0x10325476
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/* Integer part of 4294967296 times abs(sin(i)), where i is in radians. */
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static const uint32 T[65] = {
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0,
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0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
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0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
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0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
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0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
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0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
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0xd62f105d, 0x2441453, 0xd8a1e681, 0xe7d3fbc8,
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0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
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0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
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0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
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0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
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0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
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0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
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0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
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0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
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0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
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0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
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};
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static const uint8 md5_paddat[MD5_BUFLEN] = {
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0x80, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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};
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static void md5_calc (uint8 *, md5_ctxt *);
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void md5_init(ctxt)
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md5_ctxt *ctxt;
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{
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ctxt->md5_n = 0;
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ctxt->md5_i = 0;
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ctxt->md5_sta = MD5_A0;
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ctxt->md5_stb = MD5_B0;
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ctxt->md5_stc = MD5_C0;
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ctxt->md5_std = MD5_D0;
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bzero(ctxt->md5_buf, sizeof(ctxt->md5_buf));
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}
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void md5_loop(ctxt, input, len)
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md5_ctxt *ctxt;
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uint8 *input;
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unsigned int len; /* number of bytes */
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{
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unsigned int gap, i;
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ctxt->md5_n += len * 8; /* byte to bit */
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gap = MD5_BUFLEN - ctxt->md5_i;
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if (len >= gap) {
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bcopy((void *)input, (void *)(ctxt->md5_buf + ctxt->md5_i),
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gap);
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md5_calc(ctxt->md5_buf, ctxt);
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for (i = gap; i + MD5_BUFLEN <= len; i += MD5_BUFLEN) {
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md5_calc((uint8 *)(input + i), ctxt);
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}
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ctxt->md5_i = len - i;
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bcopy((void *)(input + i), (void *)ctxt->md5_buf, ctxt->md5_i);
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} else {
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bcopy((void *)input, (void *)(ctxt->md5_buf + ctxt->md5_i),
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len);
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ctxt->md5_i += len;
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}
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}
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void md5_pad(ctxt)
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md5_ctxt *ctxt;
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{
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unsigned int gap;
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/* Don't count up padding. Keep md5_n. */
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gap = MD5_BUFLEN - ctxt->md5_i;
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if (gap > 8) {
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bcopy((void *)md5_paddat,
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(void *)(ctxt->md5_buf + ctxt->md5_i),
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gap - sizeof(ctxt->md5_n));
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} else {
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/* including gap == 8 */
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bcopy((void *)md5_paddat, (void *)(ctxt->md5_buf + ctxt->md5_i),
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gap);
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md5_calc(ctxt->md5_buf, ctxt);
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bcopy((void *)(md5_paddat + gap),
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(void *)ctxt->md5_buf,
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MD5_BUFLEN - sizeof(ctxt->md5_n));
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}
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/* 8 byte word */
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#if BYTE_ORDER == LITTLE_ENDIAN
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bcopy(&ctxt->md5_n8[0], &ctxt->md5_buf[56], 8);
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#endif
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#if BYTE_ORDER == BIG_ENDIAN
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ctxt->md5_buf[56] = ctxt->md5_n8[7];
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ctxt->md5_buf[57] = ctxt->md5_n8[6];
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ctxt->md5_buf[58] = ctxt->md5_n8[5];
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ctxt->md5_buf[59] = ctxt->md5_n8[4];
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ctxt->md5_buf[60] = ctxt->md5_n8[3];
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ctxt->md5_buf[61] = ctxt->md5_n8[2];
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ctxt->md5_buf[62] = ctxt->md5_n8[1];
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ctxt->md5_buf[63] = ctxt->md5_n8[0];
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#endif
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md5_calc(ctxt->md5_buf, ctxt);
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}
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void md5_result(digest, ctxt)
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uint8 *digest;
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md5_ctxt *ctxt;
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{
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/* 4 byte words */
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#if BYTE_ORDER == LITTLE_ENDIAN
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bcopy(&ctxt->md5_st8[0], digest, 16);
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#endif
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#if BYTE_ORDER == BIG_ENDIAN
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digest[ 0] = ctxt->md5_st8[ 3]; digest[ 1] = ctxt->md5_st8[ 2];
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digest[ 2] = ctxt->md5_st8[ 1]; digest[ 3] = ctxt->md5_st8[ 0];
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digest[ 4] = ctxt->md5_st8[ 7]; digest[ 5] = ctxt->md5_st8[ 6];
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digest[ 6] = ctxt->md5_st8[ 5]; digest[ 7] = ctxt->md5_st8[ 4];
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digest[ 8] = ctxt->md5_st8[11]; digest[ 9] = ctxt->md5_st8[10];
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digest[10] = ctxt->md5_st8[ 9]; digest[11] = ctxt->md5_st8[ 8];
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digest[12] = ctxt->md5_st8[15]; digest[13] = ctxt->md5_st8[14];
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digest[14] = ctxt->md5_st8[13]; digest[15] = ctxt->md5_st8[12];
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#endif
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}
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#if BYTE_ORDER == BIG_ENDIAN
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uint32 X[16];
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#endif
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static void md5_calc(b64, ctxt)
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uint8 *b64;
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md5_ctxt *ctxt;
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{
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uint32 A = ctxt->md5_sta;
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uint32 B = ctxt->md5_stb;
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uint32 C = ctxt->md5_stc;
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uint32 D = ctxt->md5_std;
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#if BYTE_ORDER == LITTLE_ENDIAN
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uint32 *X = (uint32 *)b64;
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#endif
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#if BYTE_ORDER == BIG_ENDIAN
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/* 4 byte words */
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/* what a brute force but fast! */
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uint8 *y = (uint8 *)X;
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y[ 0] = b64[ 3]; y[ 1] = b64[ 2]; y[ 2] = b64[ 1]; y[ 3] = b64[ 0];
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y[ 4] = b64[ 7]; y[ 5] = b64[ 6]; y[ 6] = b64[ 5]; y[ 7] = b64[ 4];
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y[ 8] = b64[11]; y[ 9] = b64[10]; y[10] = b64[ 9]; y[11] = b64[ 8];
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y[12] = b64[15]; y[13] = b64[14]; y[14] = b64[13]; y[15] = b64[12];
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y[16] = b64[19]; y[17] = b64[18]; y[18] = b64[17]; y[19] = b64[16];
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y[20] = b64[23]; y[21] = b64[22]; y[22] = b64[21]; y[23] = b64[20];
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y[24] = b64[27]; y[25] = b64[26]; y[26] = b64[25]; y[27] = b64[24];
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y[28] = b64[31]; y[29] = b64[30]; y[30] = b64[29]; y[31] = b64[28];
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y[32] = b64[35]; y[33] = b64[34]; y[34] = b64[33]; y[35] = b64[32];
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y[36] = b64[39]; y[37] = b64[38]; y[38] = b64[37]; y[39] = b64[36];
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y[40] = b64[43]; y[41] = b64[42]; y[42] = b64[41]; y[43] = b64[40];
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y[44] = b64[47]; y[45] = b64[46]; y[46] = b64[45]; y[47] = b64[44];
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y[48] = b64[51]; y[49] = b64[50]; y[50] = b64[49]; y[51] = b64[48];
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y[52] = b64[55]; y[53] = b64[54]; y[54] = b64[53]; y[55] = b64[52];
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y[56] = b64[59]; y[57] = b64[58]; y[58] = b64[57]; y[59] = b64[56];
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y[60] = b64[63]; y[61] = b64[62]; y[62] = b64[61]; y[63] = b64[60];
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#endif
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ROUND1(A, B, C, D, 0, Sa, 1); ROUND1(D, A, B, C, 1, Sb, 2);
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ROUND1(C, D, A, B, 2, Sc, 3); ROUND1(B, C, D, A, 3, Sd, 4);
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ROUND1(A, B, C, D, 4, Sa, 5); ROUND1(D, A, B, C, 5, Sb, 6);
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ROUND1(C, D, A, B, 6, Sc, 7); ROUND1(B, C, D, A, 7, Sd, 8);
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ROUND1(A, B, C, D, 8, Sa, 9); ROUND1(D, A, B, C, 9, Sb, 10);
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ROUND1(C, D, A, B, 10, Sc, 11); ROUND1(B, C, D, A, 11, Sd, 12);
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ROUND1(A, B, C, D, 12, Sa, 13); ROUND1(D, A, B, C, 13, Sb, 14);
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ROUND1(C, D, A, B, 14, Sc, 15); ROUND1(B, C, D, A, 15, Sd, 16);
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ROUND2(A, B, C, D, 1, Se, 17); ROUND2(D, A, B, C, 6, Sf, 18);
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ROUND2(C, D, A, B, 11, Sg, 19); ROUND2(B, C, D, A, 0, Sh, 20);
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ROUND2(A, B, C, D, 5, Se, 21); ROUND2(D, A, B, C, 10, Sf, 22);
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ROUND2(C, D, A, B, 15, Sg, 23); ROUND2(B, C, D, A, 4, Sh, 24);
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ROUND2(A, B, C, D, 9, Se, 25); ROUND2(D, A, B, C, 14, Sf, 26);
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ROUND2(C, D, A, B, 3, Sg, 27); ROUND2(B, C, D, A, 8, Sh, 28);
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ROUND2(A, B, C, D, 13, Se, 29); ROUND2(D, A, B, C, 2, Sf, 30);
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ROUND2(C, D, A, B, 7, Sg, 31); ROUND2(B, C, D, A, 12, Sh, 32);
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ROUND3(A, B, C, D, 5, Si, 33); ROUND3(D, A, B, C, 8, Sj, 34);
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ROUND3(C, D, A, B, 11, Sk, 35); ROUND3(B, C, D, A, 14, Sl, 36);
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ROUND3(A, B, C, D, 1, Si, 37); ROUND3(D, A, B, C, 4, Sj, 38);
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ROUND3(C, D, A, B, 7, Sk, 39); ROUND3(B, C, D, A, 10, Sl, 40);
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ROUND3(A, B, C, D, 13, Si, 41); ROUND3(D, A, B, C, 0, Sj, 42);
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ROUND3(C, D, A, B, 3, Sk, 43); ROUND3(B, C, D, A, 6, Sl, 44);
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ROUND3(A, B, C, D, 9, Si, 45); ROUND3(D, A, B, C, 12, Sj, 46);
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ROUND3(C, D, A, B, 15, Sk, 47); ROUND3(B, C, D, A, 2, Sl, 48);
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ROUND4(A, B, C, D, 0, Sm, 49); ROUND4(D, A, B, C, 7, Sn, 50);
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ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A, 5, Sp, 52);
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ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C, 3, Sn, 54);
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ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A, 1, Sp, 56);
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ROUND4(A, B, C, D, 8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58);
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ROUND4(C, D, A, B, 6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60);
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ROUND4(A, B, C, D, 4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62);
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ROUND4(C, D, A, B, 2, So, 63); ROUND4(B, C, D, A, 9, Sp, 64);
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ctxt->md5_sta += A;
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ctxt->md5_stb += B;
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ctxt->md5_stc += C;
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ctxt->md5_std += D;
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}
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