+++ /dev/null
-/* crypto/md/md5_dgst.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include "md5_locl.h"
-#include "minires/minires.h"
-
-#ifdef USE_MD5 /* Added by ogud@tis.com 1998/1/26 */
-
-const char *MD5_version="MD5 part of SSLeay 0.8.1 19-Jul-1997";
-
-/* Implemented from RFC1321 The MD5 Message-Digest Algorithm
- */
-
-#define INIT_DATA_A (unsigned long)0x67452301L
-#define INIT_DATA_B (unsigned long)0xefcdab89L
-#define INIT_DATA_C (unsigned long)0x98badcfeL
-#define INIT_DATA_D (unsigned long)0x10325476L
-
-#ifndef NOPROTO
-static void md5_block(MD5_CTX *c, unsigned long *p);
-#else
-static void md5_block();
-#endif
-
-void MD5_Init(c)
-MD5_CTX *c;
- {
- c->A=INIT_DATA_A;
- c->B=INIT_DATA_B;
- c->C=INIT_DATA_C;
- c->D=INIT_DATA_D;
- c->Nl=0;
- c->Nh=0;
- c->num=0;
- }
-
-void MD5_Update(c, data, len)
-MD5_CTX *c;
-const register unsigned char *data;
-unsigned long len;
- {
- register ULONG *p;
- int sw,sc;
- ULONG l;
-
- if (len == 0) return;
-
- l=(c->Nl+(len<<3))&0xffffffffL;
- /* 95-05-24 eay Fixed a bug with the overflow handling, thanks to
- * Wei Dai <weidai@eskimo.com> for pointing it out. */
- if (l < c->Nl) /* overflow */
- c->Nh++;
- c->Nh+=(len>>29);
- c->Nl=l;
-
- if (c->num != 0)
- {
- p=c->data;
- sw=c->num>>2;
- sc=c->num&0x03;
-
- if ((c->num+len) >= MD5_CBLOCK)
- {
- l= p[sw];
- p_c2l(data,l,sc);
- p[sw++]=l;
- for (; sw<MD5_LBLOCK; sw++)
- {
- c2l(data,l);
- p[sw]=l;
- }
- len-=(MD5_CBLOCK-c->num);
-
- md5_block(c,p);
- c->num=0;
- /* drop through and do the rest */
- }
- else
- {
- int ew,ec;
-
- c->num+=(int)len;
- if ((sc+len) < 4) /* ugly, add char's to a word */
- {
- l= p[sw];
- p_c2l_p(data,l,sc,len);
- p[sw]=l;
- }
- else
- {
- ew=(c->num>>2);
- ec=(c->num&0x03);
- l= p[sw];
- p_c2l(data,l,sc);
- p[sw++]=l;
- for (; sw < ew; sw++)
- { c2l(data,l); p[sw]=l; }
- if (ec)
- {
- c2l_p(data,l,ec);
- p[sw]=l;
- }
- }
- return;
- }
- }
- /* we now can process the input data in blocks of MD5_CBLOCK
- * chars and save the leftovers to c->data. */
- p=c->data;
- while (len >= MD5_CBLOCK)
- {
-#if defined(L_ENDIAN) || defined(B_ENDIAN)
- memcpy(p,data,MD5_CBLOCK);
- data+=MD5_CBLOCK;
-#ifdef B_ENDIAN
- for (sw=(MD5_LBLOCK/4); sw; sw--)
- {
- Endian_Reverse32(p[0]);
- Endian_Reverse32(p[1]);
- Endian_Reverse32(p[2]);
- Endian_Reverse32(p[3]);
- p+=4;
- }
-#endif
-#else
- for (sw=(MD5_LBLOCK/4); sw; sw--)
- {
- c2l(data,l); *(p++)=l;
- c2l(data,l); *(p++)=l;
- c2l(data,l); *(p++)=l;
- c2l(data,l); *(p++)=l;
- }
-#endif
- p=c->data;
- md5_block(c,p);
- len-=MD5_CBLOCK;
- }
- sc=(int)len;
- c->num=sc;
- if (sc)
- {
- sw=sc>>2; /* words to copy */
-#ifdef L_ENDIAN
- p[sw]=0;
- memcpy(p,data,sc);
-#else
- sc&=0x03;
- for ( ; sw; sw--)
- { c2l(data,l); *(p++)=l; }
- c2l_p(data,l,sc);
- *p=l;
-#endif
- }
- }
-
-static void md5_block(c, X)
-MD5_CTX *c;
-register ULONG *X;
- {
- register ULONG A,B,C,D;
-
- A=c->A;
- B=c->B;
- C=c->C;
- D=c->D;
-
- /* Round 0 */
- R0(A,B,C,D,X[ 0], 7,0xd76aa478L);
- R0(D,A,B,C,X[ 1],12,0xe8c7b756L);
- R0(C,D,A,B,X[ 2],17,0x242070dbL);
- R0(B,C,D,A,X[ 3],22,0xc1bdceeeL);
- R0(A,B,C,D,X[ 4], 7,0xf57c0fafL);
- R0(D,A,B,C,X[ 5],12,0x4787c62aL);
- R0(C,D,A,B,X[ 6],17,0xa8304613L);
- R0(B,C,D,A,X[ 7],22,0xfd469501L);
- R0(A,B,C,D,X[ 8], 7,0x698098d8L);
- R0(D,A,B,C,X[ 9],12,0x8b44f7afL);
- R0(C,D,A,B,X[10],17,0xffff5bb1L);
- R0(B,C,D,A,X[11],22,0x895cd7beL);
- R0(A,B,C,D,X[12], 7,0x6b901122L);
- R0(D,A,B,C,X[13],12,0xfd987193L);
- R0(C,D,A,B,X[14],17,0xa679438eL);
- R0(B,C,D,A,X[15],22,0x49b40821L);
- /* Round 1 */
- R1(A,B,C,D,X[ 1], 5,0xf61e2562L);
- R1(D,A,B,C,X[ 6], 9,0xc040b340L);
- R1(C,D,A,B,X[11],14,0x265e5a51L);
- R1(B,C,D,A,X[ 0],20,0xe9b6c7aaL);
- R1(A,B,C,D,X[ 5], 5,0xd62f105dL);
- R1(D,A,B,C,X[10], 9,0x02441453L);
- R1(C,D,A,B,X[15],14,0xd8a1e681L);
- R1(B,C,D,A,X[ 4],20,0xe7d3fbc8L);
- R1(A,B,C,D,X[ 9], 5,0x21e1cde6L);
- R1(D,A,B,C,X[14], 9,0xc33707d6L);
- R1(C,D,A,B,X[ 3],14,0xf4d50d87L);
- R1(B,C,D,A,X[ 8],20,0x455a14edL);
- R1(A,B,C,D,X[13], 5,0xa9e3e905L);
- R1(D,A,B,C,X[ 2], 9,0xfcefa3f8L);
- R1(C,D,A,B,X[ 7],14,0x676f02d9L);
- R1(B,C,D,A,X[12],20,0x8d2a4c8aL);
- /* Round 2 */
- R2(A,B,C,D,X[ 5], 4,0xfffa3942L);
- R2(D,A,B,C,X[ 8],11,0x8771f681L);
- R2(C,D,A,B,X[11],16,0x6d9d6122L);
- R2(B,C,D,A,X[14],23,0xfde5380cL);
- R2(A,B,C,D,X[ 1], 4,0xa4beea44L);
- R2(D,A,B,C,X[ 4],11,0x4bdecfa9L);
- R2(C,D,A,B,X[ 7],16,0xf6bb4b60L);
- R2(B,C,D,A,X[10],23,0xbebfbc70L);
- R2(A,B,C,D,X[13], 4,0x289b7ec6L);
- R2(D,A,B,C,X[ 0],11,0xeaa127faL);
- R2(C,D,A,B,X[ 3],16,0xd4ef3085L);
- R2(B,C,D,A,X[ 6],23,0x04881d05L);
- R2(A,B,C,D,X[ 9], 4,0xd9d4d039L);
- R2(D,A,B,C,X[12],11,0xe6db99e5L);
- R2(C,D,A,B,X[15],16,0x1fa27cf8L);
- R2(B,C,D,A,X[ 2],23,0xc4ac5665L);
- /* Round 3 */
- R3(A,B,C,D,X[ 0], 6,0xf4292244L);
- R3(D,A,B,C,X[ 7],10,0x432aff97L);
- R3(C,D,A,B,X[14],15,0xab9423a7L);
- R3(B,C,D,A,X[ 5],21,0xfc93a039L);
- R3(A,B,C,D,X[12], 6,0x655b59c3L);
- R3(D,A,B,C,X[ 3],10,0x8f0ccc92L);
- R3(C,D,A,B,X[10],15,0xffeff47dL);
- R3(B,C,D,A,X[ 1],21,0x85845dd1L);
- R3(A,B,C,D,X[ 8], 6,0x6fa87e4fL);
- R3(D,A,B,C,X[15],10,0xfe2ce6e0L);
- R3(C,D,A,B,X[ 6],15,0xa3014314L);
- R3(B,C,D,A,X[13],21,0x4e0811a1L);
- R3(A,B,C,D,X[ 4], 6,0xf7537e82L);
- R3(D,A,B,C,X[11],10,0xbd3af235L);
- R3(C,D,A,B,X[ 2],15,0x2ad7d2bbL);
- R3(B,C,D,A,X[ 9],21,0xeb86d391L);
-
- c->A+=A&0xffffffffL;
- c->B+=B&0xffffffffL;
- c->C+=C&0xffffffffL;
- c->D+=D&0xffffffffL;
- }
-
-void MD5_Final(md, c)
-unsigned char *md;
-MD5_CTX *c;
- {
- register int i,j;
- register ULONG l;
- register ULONG *p;
- static unsigned char end[4]={0x80,0x00,0x00,0x00};
- unsigned char *cp=end;
-
- /* c->num should definitly have room for at least one more byte. */
- p=c->data;
- j=c->num;
- i=j>>2;
-
- /* purify often complains about the following line as an
- * Uninitialized Memory Read. While this can be true, the
- * following p_c2l macro will reset l when that case is true.
- * This is because j&0x03 contains the number of 'valid' bytes
- * already in p[i]. If and only if j&0x03 == 0, the UMR will
- * occur but this is also the only time p_c2l will do
- * l= *(cp++) instead of l|= *(cp++)
- * Many thanks to Alex Tang <altitude@cic.net> for pickup this
- * 'potential bug' */
-#ifdef PURIFY
- if ((j&0x03) == 0) p[i]=0;
-#endif
- l=p[i];
- p_c2l(cp,l,j&0x03);
- p[i]=l;
- i++;
- /* i is the next 'undefined word' */
- if (c->num >= MD5_LAST_BLOCK)
- {
- for (; i<MD5_LBLOCK; i++)
- p[i]=0;
- md5_block(c,p);
- i=0;
- }
- for (; i<(MD5_LBLOCK-2); i++)
- p[i]=0;
- p[MD5_LBLOCK-2]=c->Nl;
- p[MD5_LBLOCK-1]=c->Nh;
- md5_block(c,p);
- cp=md;
- l=c->A; l2c(l,cp);
- l=c->B; l2c(l,cp);
- l=c->C; l2c(l,cp);
- l=c->D; l2c(l,cp);
-
- /* clear stuff, md5_block may be leaving some stuff on the stack
- * but I'm not worried :-) */
- c->num=0;
-/* memset((char *)&c,0,sizeof(c));*/
- }
-
-#ifdef undef
-int printit(l)
-unsigned long *l;
- {
- int i,ii;
-
- for (i=0; i<2; i++)
- {
- for (ii=0; ii<8; ii++)
- {
- fprintf(stderr,"%08lx ",l[i*8+ii]);
- }
- fprintf(stderr,"\n");
- }
- }
-#endif
-#endif /* USE_MD5 */
projects / thirdparty / dhcp.git / commitdiff
