| 1 | This patch adds the --md5 option, which makes rsync use md5 checksums |
| 2 | instead of md4. |
| 3 | |
| 4 | To use this patch, run these commands for a successful build: |
| 5 | |
| 6 | patch -p1 <patches/md5.diff |
| 7 | ./configure |
| 8 | make |
| 9 | |
| 10 | --- old/Makefile.in |
| 11 | +++ new/Makefile.in |
| 12 | @@ -27,7 +27,7 @@ VERSION=@VERSION@ |
| 13 | .SUFFIXES: .c .o |
| 14 | |
| 15 | HEADERS=byteorder.h config.h errcode.h proto.h rsync.h lib/pool_alloc.h |
| 16 | -LIBOBJ=lib/wildmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o \ |
| 17 | +LIBOBJ=lib/wildmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o lib/md5.o \ |
| 18 | lib/permstring.o lib/pool_alloc.o @LIBOBJS@ |
| 19 | ZLIBOBJ=zlib/deflate.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o \ |
| 20 | zlib/trees.o zlib/zutil.o zlib/adler32.o zlib/compress.o zlib/crc32.o |
| 21 | --- old/checksum.c |
| 22 | +++ new/checksum.c |
| 23 | @@ -21,6 +21,7 @@ |
| 24 | */ |
| 25 | |
| 26 | #include "rsync.h" |
| 27 | +#include "lib/md5.h" |
| 28 | |
| 29 | int csum_length = SHORT_SUM_LENGTH; /* initial value */ |
| 30 | |
| 31 | @@ -28,6 +29,7 @@ int csum_length = SHORT_SUM_LENGTH; /* i |
| 32 | |
| 33 | extern int checksum_seed; |
| 34 | extern int protocol_version; |
| 35 | +extern int use_md5; |
| 36 | |
| 37 | /* |
| 38 | a simple 32 bit checksum that can be upadted from either end |
| 39 | @@ -58,6 +60,7 @@ void get_checksum2(char *buf, int32 len, |
| 40 | static char *buf1; |
| 41 | static int32 len1; |
| 42 | struct mdfour m; |
| 43 | + md5_context ctx; |
| 44 | |
| 45 | if (len > len1) { |
| 46 | if (buf1) |
| 47 | @@ -68,7 +71,10 @@ void get_checksum2(char *buf, int32 len, |
| 48 | out_of_memory("get_checksum2"); |
| 49 | } |
| 50 | |
| 51 | - mdfour_begin(&m); |
| 52 | + if (use_md5) |
| 53 | + md5_starts(&ctx); |
| 54 | + else |
| 55 | + mdfour_begin(&m); |
| 56 | |
| 57 | memcpy(buf1,buf,len); |
| 58 | if (checksum_seed) { |
| 59 | @@ -77,7 +83,10 @@ void get_checksum2(char *buf, int32 len, |
| 60 | } |
| 61 | |
| 62 | for(i = 0; i + CSUM_CHUNK <= len; i += CSUM_CHUNK) { |
| 63 | - mdfour_update(&m, (uchar *)(buf1+i), CSUM_CHUNK); |
| 64 | + if (use_md5) |
| 65 | + md5_update(&ctx, (uchar *)(buf1+i), CSUM_CHUNK); |
| 66 | + else |
| 67 | + mdfour_update(&m, (uchar *)(buf1+i), CSUM_CHUNK); |
| 68 | } |
| 69 | /* |
| 70 | * Prior to version 27 an incorrect MD4 checksum was computed |
| 71 | @@ -86,10 +95,16 @@ void get_checksum2(char *buf, int32 len, |
| 72 | * even when there are no more bytes. |
| 73 | */ |
| 74 | if (len - i > 0 || protocol_version >= 27) { |
| 75 | - mdfour_update(&m, (uchar *)(buf1+i), (len-i)); |
| 76 | + if (use_md5) |
| 77 | + md5_update(&ctx, (uchar *)(buf1+i), len-i); |
| 78 | + else |
| 79 | + mdfour_update(&m, (uchar *)(buf1+i), len-i); |
| 80 | } |
| 81 | |
| 82 | - mdfour_result(&m, (uchar *)sum); |
| 83 | + if (use_md5) |
| 84 | + md5_finish(&ctx, (uchar *)sum); |
| 85 | + else |
| 86 | + mdfour_result(&m, (uchar *)sum); |
| 87 | } |
| 88 | |
| 89 | |
| 90 | @@ -99,6 +114,7 @@ void file_checksum(char *fname,char *sum |
| 91 | OFF_T i, len = size; |
| 92 | struct mdfour m; |
| 93 | int32 remainder; |
| 94 | + md5_context ctx; |
| 95 | int fd; |
| 96 | |
| 97 | memset(sum,0,MD4_SUM_LENGTH); |
| 98 | @@ -109,11 +125,19 @@ void file_checksum(char *fname,char *sum |
| 99 | |
| 100 | buf = map_file(fd, size, MAX_MAP_SIZE, CSUM_CHUNK); |
| 101 | |
| 102 | - mdfour_begin(&m); |
| 103 | + if (use_md5) |
| 104 | + md5_starts(&ctx); |
| 105 | + else |
| 106 | + mdfour_begin(&m); |
| 107 | |
| 108 | for(i = 0; i + CSUM_CHUNK <= len; i += CSUM_CHUNK) { |
| 109 | - mdfour_update(&m, (uchar *)map_ptr(buf, i, CSUM_CHUNK), |
| 110 | - CSUM_CHUNK); |
| 111 | + if (use_md5) { |
| 112 | + md5_update(&ctx, (uchar *)map_ptr(buf, i, CSUM_CHUNK), |
| 113 | + CSUM_CHUNK); |
| 114 | + } else { |
| 115 | + mdfour_update(&m, (uchar *)map_ptr(buf, i, CSUM_CHUNK), |
| 116 | + CSUM_CHUNK); |
| 117 | + } |
| 118 | } |
| 119 | |
| 120 | /* Prior to version 27 an incorrect MD4 checksum was computed |
| 121 | @@ -121,10 +145,17 @@ void file_checksum(char *fname,char *sum |
| 122 | * are multiples of 64. This is fixed by calling mdfour_update() |
| 123 | * even when there are no more bytes. */ |
| 124 | remainder = (int32)(len - i); |
| 125 | - if (remainder > 0 || protocol_version >= 27) |
| 126 | - mdfour_update(&m, (uchar *)map_ptr(buf, i, remainder), remainder); |
| 127 | + if (remainder > 0 || protocol_version >= 27) { |
| 128 | + if (use_md5) |
| 129 | + md5_update(&ctx, (uchar *)map_ptr(buf, i, remainder), remainder); |
| 130 | + else |
| 131 | + mdfour_update(&m, (uchar *)map_ptr(buf, i, remainder), remainder); |
| 132 | + } |
| 133 | |
| 134 | - mdfour_result(&m, (uchar *)sum); |
| 135 | + if (use_md5) |
| 136 | + md5_finish(&ctx, (uchar *)sum); |
| 137 | + else |
| 138 | + mdfour_result(&m, (uchar *)sum); |
| 139 | |
| 140 | close(fd); |
| 141 | unmap_file(buf); |
| 142 | @@ -134,11 +165,15 @@ void file_checksum(char *fname,char *sum |
| 143 | static int32 sumresidue; |
| 144 | static char sumrbuf[CSUM_CHUNK]; |
| 145 | static struct mdfour md; |
| 146 | +static md5_context ctxd; |
| 147 | |
| 148 | void sum_init(int seed) |
| 149 | { |
| 150 | char s[4]; |
| 151 | - mdfour_begin(&md); |
| 152 | + if (use_md5) |
| 153 | + md5_starts(&ctxd); |
| 154 | + else |
| 155 | + mdfour_begin(&md); |
| 156 | sumresidue = 0; |
| 157 | SIVAL(s, 0, seed); |
| 158 | sum_update(s, 4); |
| 159 | @@ -163,13 +198,19 @@ void sum_update(const char *p, int32 len |
| 160 | if (sumresidue) { |
| 161 | int32 i = CSUM_CHUNK - sumresidue; |
| 162 | memcpy(sumrbuf + sumresidue, p, i); |
| 163 | - mdfour_update(&md, (uchar *)sumrbuf, CSUM_CHUNK); |
| 164 | + if (use_md5) |
| 165 | + md5_update(&ctxd, (uchar *)sumrbuf, CSUM_CHUNK); |
| 166 | + else |
| 167 | + mdfour_update(&md, (uchar *)sumrbuf, CSUM_CHUNK); |
| 168 | len -= i; |
| 169 | p += i; |
| 170 | } |
| 171 | |
| 172 | while (len >= CSUM_CHUNK) { |
| 173 | - mdfour_update(&md, (uchar *)p, CSUM_CHUNK); |
| 174 | + if (use_md5) |
| 175 | + md5_update(&ctxd, (uchar *)p, CSUM_CHUNK); |
| 176 | + else |
| 177 | + mdfour_update(&md, (uchar *)p, CSUM_CHUNK); |
| 178 | len -= CSUM_CHUNK; |
| 179 | p += CSUM_CHUNK; |
| 180 | } |
| 181 | @@ -181,8 +222,15 @@ void sum_update(const char *p, int32 len |
| 182 | |
| 183 | void sum_end(char *sum) |
| 184 | { |
| 185 | - if (sumresidue || protocol_version >= 27) |
| 186 | - mdfour_update(&md, (uchar *)sumrbuf, sumresidue); |
| 187 | + if (sumresidue || protocol_version >= 27) { |
| 188 | + if (use_md5) |
| 189 | + md5_update(&ctxd, (uchar *)sumrbuf, sumresidue); |
| 190 | + else |
| 191 | + mdfour_update(&md, (uchar *)sumrbuf, sumresidue); |
| 192 | + } |
| 193 | |
| 194 | - mdfour_result(&md, (uchar *)sum); |
| 195 | + if (use_md5) |
| 196 | + md5_finish(&ctxd, (uchar *)sum); |
| 197 | + else |
| 198 | + mdfour_result(&md, (uchar *)sum); |
| 199 | } |
| 200 | --- old/lib/md5.c |
| 201 | +++ new/lib/md5.c |
| 202 | @@ -0,0 +1,344 @@ |
| 203 | +/* |
| 204 | + * RFC 1321 compliant MD5 implementation |
| 205 | + * |
| 206 | + * Copyright (C) 2001-2003 Christophe Devine |
| 207 | + * |
| 208 | + * This program is free software; you can redistribute it and/or modify |
| 209 | + * it under the terms of the GNU General Public License as published by |
| 210 | + * the Free Software Foundation; either version 2 of the License, or |
| 211 | + * (at your option) any later version. |
| 212 | + * |
| 213 | + * This program is distributed in the hope that it will be useful, |
| 214 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 215 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 216 | + * GNU General Public License for more details. |
| 217 | + * |
| 218 | + * You should have received a copy of the GNU General Public License |
| 219 | + * along with this program; if not, write to the Free Software |
| 220 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 221 | + */ |
| 222 | + |
| 223 | + |
| 224 | +#include "rsync.h" |
| 225 | +#include "md5.h" |
| 226 | + |
| 227 | +#define GET_UINT32(n,b,i) \ |
| 228 | +{ \ |
| 229 | + (n) = ( (uint32) (b)[(i) ] ) \ |
| 230 | + | ( (uint32) (b)[(i) + 1] << 8 ) \ |
| 231 | + | ( (uint32) (b)[(i) + 2] << 16 ) \ |
| 232 | + | ( (uint32) (b)[(i) + 3] << 24 ); \ |
| 233 | +} |
| 234 | + |
| 235 | +#define PUT_UINT32(n,b,i) \ |
| 236 | +{ \ |
| 237 | + (b)[(i) ] = (uchar) ( (n) ); \ |
| 238 | + (b)[(i) + 1] = (uchar) ( (n) >> 8 ); \ |
| 239 | + (b)[(i) + 2] = (uchar) ( (n) >> 16 ); \ |
| 240 | + (b)[(i) + 3] = (uchar) ( (n) >> 24 ); \ |
| 241 | +} |
| 242 | + |
| 243 | +void md5_starts( md5_context *ctx ) |
| 244 | +{ |
| 245 | + ctx->total[0] = 0; |
| 246 | + ctx->total[1] = 0; |
| 247 | + |
| 248 | + ctx->state[0] = 0x67452301; |
| 249 | + ctx->state[1] = 0xEFCDAB89; |
| 250 | + ctx->state[2] = 0x98BADCFE; |
| 251 | + ctx->state[3] = 0x10325476; |
| 252 | +} |
| 253 | + |
| 254 | +void md5_process( md5_context *ctx, uchar data[64] ) |
| 255 | +{ |
| 256 | + uint32 X[16], A, B, C, D; |
| 257 | + |
| 258 | + GET_UINT32( X[0], data, 0 ); |
| 259 | + GET_UINT32( X[1], data, 4 ); |
| 260 | + GET_UINT32( X[2], data, 8 ); |
| 261 | + GET_UINT32( X[3], data, 12 ); |
| 262 | + GET_UINT32( X[4], data, 16 ); |
| 263 | + GET_UINT32( X[5], data, 20 ); |
| 264 | + GET_UINT32( X[6], data, 24 ); |
| 265 | + GET_UINT32( X[7], data, 28 ); |
| 266 | + GET_UINT32( X[8], data, 32 ); |
| 267 | + GET_UINT32( X[9], data, 36 ); |
| 268 | + GET_UINT32( X[10], data, 40 ); |
| 269 | + GET_UINT32( X[11], data, 44 ); |
| 270 | + GET_UINT32( X[12], data, 48 ); |
| 271 | + GET_UINT32( X[13], data, 52 ); |
| 272 | + GET_UINT32( X[14], data, 56 ); |
| 273 | + GET_UINT32( X[15], data, 60 ); |
| 274 | + |
| 275 | +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) |
| 276 | + |
| 277 | +#define P(a,b,c,d,k,s,t) \ |
| 278 | +{ \ |
| 279 | + a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \ |
| 280 | +} |
| 281 | + |
| 282 | + A = ctx->state[0]; |
| 283 | + B = ctx->state[1]; |
| 284 | + C = ctx->state[2]; |
| 285 | + D = ctx->state[3]; |
| 286 | + |
| 287 | +#define F(x,y,z) (z ^ (x & (y ^ z))) |
| 288 | + |
| 289 | + P( A, B, C, D, 0, 7, 0xD76AA478 ); |
| 290 | + P( D, A, B, C, 1, 12, 0xE8C7B756 ); |
| 291 | + P( C, D, A, B, 2, 17, 0x242070DB ); |
| 292 | + P( B, C, D, A, 3, 22, 0xC1BDCEEE ); |
| 293 | + P( A, B, C, D, 4, 7, 0xF57C0FAF ); |
| 294 | + P( D, A, B, C, 5, 12, 0x4787C62A ); |
| 295 | + P( C, D, A, B, 6, 17, 0xA8304613 ); |
| 296 | + P( B, C, D, A, 7, 22, 0xFD469501 ); |
| 297 | + P( A, B, C, D, 8, 7, 0x698098D8 ); |
| 298 | + P( D, A, B, C, 9, 12, 0x8B44F7AF ); |
| 299 | + P( C, D, A, B, 10, 17, 0xFFFF5BB1 ); |
| 300 | + P( B, C, D, A, 11, 22, 0x895CD7BE ); |
| 301 | + P( A, B, C, D, 12, 7, 0x6B901122 ); |
| 302 | + P( D, A, B, C, 13, 12, 0xFD987193 ); |
| 303 | + P( C, D, A, B, 14, 17, 0xA679438E ); |
| 304 | + P( B, C, D, A, 15, 22, 0x49B40821 ); |
| 305 | + |
| 306 | +#undef F |
| 307 | + |
| 308 | +#define F(x,y,z) (y ^ (z & (x ^ y))) |
| 309 | + |
| 310 | + P( A, B, C, D, 1, 5, 0xF61E2562 ); |
| 311 | + P( D, A, B, C, 6, 9, 0xC040B340 ); |
| 312 | + P( C, D, A, B, 11, 14, 0x265E5A51 ); |
| 313 | + P( B, C, D, A, 0, 20, 0xE9B6C7AA ); |
| 314 | + P( A, B, C, D, 5, 5, 0xD62F105D ); |
| 315 | + P( D, A, B, C, 10, 9, 0x02441453 ); |
| 316 | + P( C, D, A, B, 15, 14, 0xD8A1E681 ); |
| 317 | + P( B, C, D, A, 4, 20, 0xE7D3FBC8 ); |
| 318 | + P( A, B, C, D, 9, 5, 0x21E1CDE6 ); |
| 319 | + P( D, A, B, C, 14, 9, 0xC33707D6 ); |
| 320 | + P( C, D, A, B, 3, 14, 0xF4D50D87 ); |
| 321 | + P( B, C, D, A, 8, 20, 0x455A14ED ); |
| 322 | + P( A, B, C, D, 13, 5, 0xA9E3E905 ); |
| 323 | + P( D, A, B, C, 2, 9, 0xFCEFA3F8 ); |
| 324 | + P( C, D, A, B, 7, 14, 0x676F02D9 ); |
| 325 | + P( B, C, D, A, 12, 20, 0x8D2A4C8A ); |
| 326 | + |
| 327 | +#undef F |
| 328 | + |
| 329 | +#define F(x,y,z) (x ^ y ^ z) |
| 330 | + |
| 331 | + P( A, B, C, D, 5, 4, 0xFFFA3942 ); |
| 332 | + P( D, A, B, C, 8, 11, 0x8771F681 ); |
| 333 | + P( C, D, A, B, 11, 16, 0x6D9D6122 ); |
| 334 | + P( B, C, D, A, 14, 23, 0xFDE5380C ); |
| 335 | + P( A, B, C, D, 1, 4, 0xA4BEEA44 ); |
| 336 | + P( D, A, B, C, 4, 11, 0x4BDECFA9 ); |
| 337 | + P( C, D, A, B, 7, 16, 0xF6BB4B60 ); |
| 338 | + P( B, C, D, A, 10, 23, 0xBEBFBC70 ); |
| 339 | + P( A, B, C, D, 13, 4, 0x289B7EC6 ); |
| 340 | + P( D, A, B, C, 0, 11, 0xEAA127FA ); |
| 341 | + P( C, D, A, B, 3, 16, 0xD4EF3085 ); |
| 342 | + P( B, C, D, A, 6, 23, 0x04881D05 ); |
| 343 | + P( A, B, C, D, 9, 4, 0xD9D4D039 ); |
| 344 | + P( D, A, B, C, 12, 11, 0xE6DB99E5 ); |
| 345 | + P( C, D, A, B, 15, 16, 0x1FA27CF8 ); |
| 346 | + P( B, C, D, A, 2, 23, 0xC4AC5665 ); |
| 347 | + |
| 348 | +#undef F |
| 349 | + |
| 350 | +#define F(x,y,z) (y ^ (x | ~z)) |
| 351 | + |
| 352 | + P( A, B, C, D, 0, 6, 0xF4292244 ); |
| 353 | + P( D, A, B, C, 7, 10, 0x432AFF97 ); |
| 354 | + P( C, D, A, B, 14, 15, 0xAB9423A7 ); |
| 355 | + P( B, C, D, A, 5, 21, 0xFC93A039 ); |
| 356 | + P( A, B, C, D, 12, 6, 0x655B59C3 ); |
| 357 | + P( D, A, B, C, 3, 10, 0x8F0CCC92 ); |
| 358 | + P( C, D, A, B, 10, 15, 0xFFEFF47D ); |
| 359 | + P( B, C, D, A, 1, 21, 0x85845DD1 ); |
| 360 | + P( A, B, C, D, 8, 6, 0x6FA87E4F ); |
| 361 | + P( D, A, B, C, 15, 10, 0xFE2CE6E0 ); |
| 362 | + P( C, D, A, B, 6, 15, 0xA3014314 ); |
| 363 | + P( B, C, D, A, 13, 21, 0x4E0811A1 ); |
| 364 | + P( A, B, C, D, 4, 6, 0xF7537E82 ); |
| 365 | + P( D, A, B, C, 11, 10, 0xBD3AF235 ); |
| 366 | + P( C, D, A, B, 2, 15, 0x2AD7D2BB ); |
| 367 | + P( B, C, D, A, 9, 21, 0xEB86D391 ); |
| 368 | + |
| 369 | +#undef F |
| 370 | + |
| 371 | + ctx->state[0] += A; |
| 372 | + ctx->state[1] += B; |
| 373 | + ctx->state[2] += C; |
| 374 | + ctx->state[3] += D; |
| 375 | +} |
| 376 | + |
| 377 | +void md5_update( md5_context *ctx, uchar *input, uint32 length ) |
| 378 | +{ |
| 379 | + uint32 left, fill; |
| 380 | + |
| 381 | + if( ! length ) return; |
| 382 | + |
| 383 | + left = ctx->total[0] & 0x3F; |
| 384 | + fill = 64 - left; |
| 385 | + |
| 386 | + ctx->total[0] += length; |
| 387 | + ctx->total[0] &= 0xFFFFFFFF; |
| 388 | + |
| 389 | + if( ctx->total[0] < length ) |
| 390 | + ctx->total[1]++; |
| 391 | + |
| 392 | + if( left && length >= fill ) |
| 393 | + { |
| 394 | + memcpy( (void *) (ctx->buffer + left), |
| 395 | + (void *) input, fill ); |
| 396 | + md5_process( ctx, ctx->buffer ); |
| 397 | + length -= fill; |
| 398 | + input += fill; |
| 399 | + left = 0; |
| 400 | + } |
| 401 | + |
| 402 | + while( length >= 64 ) |
| 403 | + { |
| 404 | + md5_process( ctx, input ); |
| 405 | + length -= 64; |
| 406 | + input += 64; |
| 407 | + } |
| 408 | + |
| 409 | + if( length ) |
| 410 | + { |
| 411 | + memcpy( (void *) (ctx->buffer + left), |
| 412 | + (void *) input, length ); |
| 413 | + } |
| 414 | +} |
| 415 | + |
| 416 | +static uchar md5_padding[64] = |
| 417 | +{ |
| 418 | + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 419 | + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 420 | + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 421 | + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
| 422 | +}; |
| 423 | + |
| 424 | +void md5_finish( md5_context *ctx, uchar digest[16] ) |
| 425 | +{ |
| 426 | + uint32 last, padn; |
| 427 | + uint32 high, low; |
| 428 | + uchar msglen[8]; |
| 429 | + |
| 430 | + high = ( ctx->total[0] >> 29 ) |
| 431 | + | ( ctx->total[1] << 3 ); |
| 432 | + low = ( ctx->total[0] << 3 ); |
| 433 | + |
| 434 | + PUT_UINT32( low, msglen, 0 ); |
| 435 | + PUT_UINT32( high, msglen, 4 ); |
| 436 | + |
| 437 | + last = ctx->total[0] & 0x3F; |
| 438 | + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); |
| 439 | + |
| 440 | + md5_update( ctx, md5_padding, padn ); |
| 441 | + md5_update( ctx, msglen, 8 ); |
| 442 | + |
| 443 | + PUT_UINT32( ctx->state[0], digest, 0 ); |
| 444 | + PUT_UINT32( ctx->state[1], digest, 4 ); |
| 445 | + PUT_UINT32( ctx->state[2], digest, 8 ); |
| 446 | + PUT_UINT32( ctx->state[3], digest, 12 ); |
| 447 | +} |
| 448 | + |
| 449 | +#ifdef TEST |
| 450 | + |
| 451 | +#include <stdlib.h> |
| 452 | +#include <stdio.h> |
| 453 | + |
| 454 | +/* |
| 455 | + * those are the standard RFC 1321 test vectors |
| 456 | + */ |
| 457 | + |
| 458 | +static char *msg[] = |
| 459 | +{ |
| 460 | + "", |
| 461 | + "a", |
| 462 | + "abc", |
| 463 | + "message digest", |
| 464 | + "abcdefghijklmnopqrstuvwxyz", |
| 465 | + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", |
| 466 | + "12345678901234567890123456789012345678901234567890123456789012" \ |
| 467 | + "345678901234567890" |
| 468 | +}; |
| 469 | + |
| 470 | +static char *val[] = |
| 471 | +{ |
| 472 | + "d41d8cd98f00b204e9800998ecf8427e", |
| 473 | + "0cc175b9c0f1b6a831c399e269772661", |
| 474 | + "900150983cd24fb0d6963f7d28e17f72", |
| 475 | + "f96b697d7cb7938d525a2f31aaf161d0", |
| 476 | + "c3fcd3d76192e4007dfb496cca67e13b", |
| 477 | + "d174ab98d277d9f5a5611c2c9f419d9f", |
| 478 | + "57edf4a22be3c955ac49da2e2107b67a" |
| 479 | +}; |
| 480 | + |
| 481 | +int main( int argc, char *argv[] ) |
| 482 | +{ |
| 483 | + FILE *f; |
| 484 | + int i, j; |
| 485 | + char output[33]; |
| 486 | + md5_context ctx; |
| 487 | + unsigned char buf[1000]; |
| 488 | + unsigned char md5sum[16]; |
| 489 | + |
| 490 | + if( argc < 2 ) |
| 491 | + { |
| 492 | + printf( "\n MD5 Validation Tests:\n\n" ); |
| 493 | + |
| 494 | + for( i = 0; i < 7; i++ ) |
| 495 | + { |
| 496 | + printf( " Test %d ", i + 1 ); |
| 497 | + |
| 498 | + md5_starts( &ctx ); |
| 499 | + md5_update( &ctx, (uchar *) msg[i], strlen( msg[i] ) ); |
| 500 | + md5_finish( &ctx, md5sum ); |
| 501 | + |
| 502 | + for( j = 0; j < 16; j++ ) |
| 503 | + { |
| 504 | + sprintf( output + j * 2, "%02x", md5sum[j] ); |
| 505 | + } |
| 506 | + |
| 507 | + if( memcmp( output, val[i], 32 ) ) |
| 508 | + { |
| 509 | + printf( "failed!\n" ); |
| 510 | + return( 1 ); |
| 511 | + } |
| 512 | + |
| 513 | + printf( "passed.\n" ); |
| 514 | + } |
| 515 | + |
| 516 | + printf( "\n" ); |
| 517 | + } |
| 518 | + else |
| 519 | + { |
| 520 | + if( ! ( f = fopen( argv[1], "rb" ) ) ) |
| 521 | + { |
| 522 | + perror( "fopen" ); |
| 523 | + return( 1 ); |
| 524 | + } |
| 525 | + |
| 526 | + md5_starts( &ctx ); |
| 527 | + |
| 528 | + while( ( i = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) |
| 529 | + { |
| 530 | + md5_update( &ctx, buf, i ); |
| 531 | + } |
| 532 | + |
| 533 | + md5_finish( &ctx, md5sum ); |
| 534 | + |
| 535 | + for( j = 0; j < 16; j++ ) |
| 536 | + { |
| 537 | + printf( "%02x", md5sum[j] ); |
| 538 | + } |
| 539 | + |
| 540 | + printf( " %s\n", argv[1] ); |
| 541 | + } |
| 542 | + |
| 543 | + return( 0 ); |
| 544 | +} |
| 545 | + |
| 546 | +#endif |
| 547 | --- old/lib/md5.h |
| 548 | +++ new/lib/md5.h |
| 549 | @@ -0,0 +1,14 @@ |
| 550 | +#ifndef _MD5_H |
| 551 | +#define _MD5_H |
| 552 | + |
| 553 | +typedef struct { |
| 554 | + uint32 total[2]; |
| 555 | + uint32 state[4]; |
| 556 | + uchar buffer[64]; |
| 557 | +} md5_context; |
| 558 | + |
| 559 | +void md5_starts(md5_context *ctx); |
| 560 | +void md5_update(md5_context *ctx, uchar *input, uint32 length); |
| 561 | +void md5_finish(md5_context *ctx, uchar digest[16]); |
| 562 | + |
| 563 | +#endif /* md5.h */ |
| 564 | --- old/options.c |
| 565 | +++ new/options.c |
| 566 | @@ -101,6 +101,7 @@ int copy_unsafe_links = 0; |
| 567 | int size_only = 0; |
| 568 | int daemon_bwlimit = 0; |
| 569 | int bwlimit = 0; |
| 570 | +int use_md5 = 0; |
| 571 | int fuzzy_basis = 0; |
| 572 | size_t bwlimit_writemax = 0; |
| 573 | int ignore_existing = 0; |
| 574 | @@ -378,6 +379,7 @@ void usage(enum logcode F) |
| 575 | rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n"); |
| 576 | rprintf(F," --read-batch=FILE read a batched update from FILE\n"); |
| 577 | rprintf(F," --protocol=NUM force an older protocol version to be used\n"); |
| 578 | + rprintf(F," --md5 use MD5 checksums instead of MD4\n"); |
| 579 | #ifdef INET6 |
| 580 | rprintf(F," -4, --ipv4 prefer IPv4\n"); |
| 581 | rprintf(F," -6, --ipv6 prefer IPv6\n"); |
| 582 | @@ -492,6 +494,7 @@ static struct poptOption long_options[] |
| 583 | {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 }, |
| 584 | {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 }, |
| 585 | {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 }, |
| 586 | + {"md5", 0, POPT_ARG_NONE, &use_md5, 0, 0, 0 }, |
| 587 | {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 }, |
| 588 | {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 }, |
| 589 | {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 }, |
| 590 | @@ -1656,6 +1659,9 @@ void server_options(char **args,int *arg |
| 591 | args[ac++] = arg; |
| 592 | } |
| 593 | |
| 594 | + if (use_md5) |
| 595 | + args[ac++] = "--md5"; |
| 596 | + |
| 597 | if (backup_dir) { |
| 598 | args[ac++] = "--backup-dir"; |
| 599 | args[ac++] = backup_dir; |