|
0
|
1 /* md5.c - Functions to compute MD5 message digest of files or memory blocks
|
|
|
2 according to the definition of MD5 in RFC 1321 from April 1992.
|
|
|
3 Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 NOTE: This source is derived from an old version taken from the GNU C
|
|
|
6 Library (glibc).
|
|
|
7
|
|
|
8 This program is free software; you can redistribute it and/or modify it
|
|
|
9 under the terms of the GNU General Public License as published by the
|
|
|
10 Free Software Foundation; either version 2, or (at your option) any
|
|
|
11 later version.
|
|
|
12
|
|
|
13 This program is distributed in the hope that it will be useful,
|
|
|
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
16 GNU General Public License for more details.
|
|
|
17
|
|
|
18 You should have received a copy of the GNU General Public License
|
|
|
19 along with this program; if not, write to the Free Software Foundation,
|
|
|
20 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
|
|
21
|
|
|
22 /* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
|
|
|
23
|
|
|
24 #ifdef HAVE_CONFIG_H
|
|
|
25 # include <config.h>
|
|
|
26 #endif
|
|
|
27
|
|
|
28 #include <sys/types.h>
|
|
|
29
|
|
|
30 #if STDC_HEADERS || defined _LIBC
|
|
|
31 # include <stdlib.h>
|
|
|
32 # include <string.h>
|
|
|
33 #else
|
|
|
34 # ifndef HAVE_MEMCPY
|
|
|
35 # define memcpy(d, s, n) bcopy ((s), (d), (n))
|
|
|
36 # endif
|
|
|
37 #endif
|
|
|
38
|
|
|
39 #include "ansidecl.h"
|
|
|
40 #include "md5.h"
|
|
|
41
|
|
|
42 #ifdef _LIBC
|
|
|
43 # include <endian.h>
|
|
|
44 # if __BYTE_ORDER == __BIG_ENDIAN
|
|
|
45 # define WORDS_BIGENDIAN 1
|
|
|
46 # endif
|
|
|
47 #endif
|
|
|
48
|
|
|
49 #ifdef WORDS_BIGENDIAN
|
|
|
50 # define SWAP(n) \
|
|
|
51 (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
|
|
|
52 #else
|
|
|
53 # define SWAP(n) (n)
|
|
|
54 #endif
|
|
|
55
|
|
|
56
|
|
|
57 /* This array contains the bytes used to pad the buffer to the next
|
|
|
58 64-byte boundary. (RFC 1321, 3.1: Step 1) */
|
|
|
59 static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
|
|
|
60
|
|
|
61
|
|
|
62 /* Initialize structure containing state of computation.
|
|
|
63 (RFC 1321, 3.3: Step 3) */
|
|
|
64 void
|
|
|
65 md5_init_ctx (struct md5_ctx *ctx)
|
|
|
66 {
|
|
|
67 ctx->A = (md5_uint32) 0x67452301;
|
|
|
68 ctx->B = (md5_uint32) 0xefcdab89;
|
|
|
69 ctx->C = (md5_uint32) 0x98badcfe;
|
|
|
70 ctx->D = (md5_uint32) 0x10325476;
|
|
|
71
|
|
|
72 ctx->total[0] = ctx->total[1] = 0;
|
|
|
73 ctx->buflen = 0;
|
|
|
74 }
|
|
|
75
|
|
|
76 /* Put result from CTX in first 16 bytes following RESBUF. The result
|
|
|
77 must be in little endian byte order.
|
|
|
78
|
|
|
79 IMPORTANT: On some systems it is required that RESBUF is correctly
|
|
|
80 aligned for a 32 bits value. */
|
|
|
81 void *
|
|
|
82 md5_read_ctx (const struct md5_ctx *ctx, void *resbuf)
|
|
|
83 {
|
|
|
84 ((md5_uint32 *) resbuf)[0] = SWAP (ctx->A);
|
|
|
85 ((md5_uint32 *) resbuf)[1] = SWAP (ctx->B);
|
|
|
86 ((md5_uint32 *) resbuf)[2] = SWAP (ctx->C);
|
|
|
87 ((md5_uint32 *) resbuf)[3] = SWAP (ctx->D);
|
|
|
88
|
|
|
89 return resbuf;
|
|
|
90 }
|
|
|
91
|
|
|
92 /* Process the remaining bytes in the internal buffer and the usual
|
|
|
93 prolog according to the standard and write the result to RESBUF.
|
|
|
94
|
|
|
95 IMPORTANT: On some systems it is required that RESBUF is correctly
|
|
|
96 aligned for a 32 bits value. */
|
|
|
97 void *
|
|
|
98 md5_finish_ctx (struct md5_ctx *ctx, void *resbuf)
|
|
|
99 {
|
|
|
100 /* Take yet unprocessed bytes into account. */
|
|
|
101 md5_uint32 bytes = ctx->buflen;
|
|
|
102 size_t pad;
|
|
|
103
|
|
|
104 /* Now count remaining bytes. */
|
|
|
105 ctx->total[0] += bytes;
|
|
|
106 if (ctx->total[0] < bytes)
|
|
|
107 ++ctx->total[1];
|
|
|
108
|
|
|
109 pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
|
|
|
110 memcpy (&ctx->buffer[bytes], fillbuf, pad);
|
|
|
111
|
|
|
112 /* Put the 64-bit file length in *bits* at the end of the buffer. */
|
|
|
113 *(md5_uint32 *) &ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
|
|
|
114 *(md5_uint32 *) &ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
|
|
|
115 (ctx->total[0] >> 29));
|
|
|
116
|
|
|
117 /* Process last bytes. */
|
|
|
118 md5_process_block (ctx->buffer, bytes + pad + 8, ctx);
|
|
|
119
|
|
|
120 return md5_read_ctx (ctx, resbuf);
|
|
|
121 }
|
|
|
122
|
|
|
123 /* Compute MD5 message digest for bytes read from STREAM. The
|
|
|
124 resulting message digest number will be written into the 16 bytes
|
|
|
125 beginning at RESBLOCK. */
|
|
|
126 int
|
|
|
127 md5_stream (FILE *stream, void *resblock)
|
|
|
128 {
|
|
|
129 /* Important: BLOCKSIZE must be a multiple of 64. */
|
|
|
130 #define BLOCKSIZE 4096
|
|
|
131 struct md5_ctx ctx;
|
|
|
132 char buffer[BLOCKSIZE + 72];
|
|
|
133 size_t sum;
|
|
|
134
|
|
|
135 /* Initialize the computation context. */
|
|
|
136 md5_init_ctx (&ctx);
|
|
|
137
|
|
|
138 /* Iterate over full file contents. */
|
|
|
139 while (1)
|
|
|
140 {
|
|
|
141 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
|
|
|
142 computation function processes the whole buffer so that with the
|
|
|
143 next round of the loop another block can be read. */
|
|
|
144 size_t n;
|
|
|
145 sum = 0;
|
|
|
146
|
|
|
147 /* Read block. Take care for partial reads. */
|
|
|
148 do
|
|
|
149 {
|
|
|
150 n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream);
|
|
|
151
|
|
|
152 sum += n;
|
|
|
153 }
|
|
|
154 while (sum < BLOCKSIZE && n != 0);
|
|
|
155 if (n == 0 && ferror (stream))
|
|
|
156 return 1;
|
|
|
157
|
|
|
158 /* If end of file is reached, end the loop. */
|
|
|
159 if (n == 0)
|
|
|
160 break;
|
|
|
161
|
|
|
162 /* Process buffer with BLOCKSIZE bytes. Note that
|
|
|
163 BLOCKSIZE % 64 == 0
|
|
|
164 */
|
|
|
165 md5_process_block (buffer, BLOCKSIZE, &ctx);
|
|
|
166 }
|
|
|
167
|
|
|
168 /* Add the last bytes if necessary. */
|
|
|
169 if (sum > 0)
|
|
|
170 md5_process_bytes (buffer, sum, &ctx);
|
|
|
171
|
|
|
172 /* Construct result in desired memory. */
|
|
|
173 md5_finish_ctx (&ctx, resblock);
|
|
|
174 return 0;
|
|
|
175 }
|
|
|
176
|
|
|
177 /* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
|
|
|
178 result is always in little endian byte order, so that a byte-wise
|
|
|
179 output yields to the wanted ASCII representation of the message
|
|
|
180 digest. */
|
|
|
181 void *
|
|
|
182 md5_buffer (const char *buffer, size_t len, void *resblock)
|
|
|
183 {
|
|
|
184 struct md5_ctx ctx;
|
|
|
185
|
|
|
186 /* Initialize the computation context. */
|
|
|
187 md5_init_ctx (&ctx);
|
|
|
188
|
|
|
189 /* Process whole buffer but last len % 64 bytes. */
|
|
|
190 md5_process_bytes (buffer, len, &ctx);
|
|
|
191
|
|
|
192 /* Put result in desired memory area. */
|
|
|
193 return md5_finish_ctx (&ctx, resblock);
|
|
|
194 }
|
|
|
195
|
|
|
196
|
|
|
197 void
|
|
|
198 md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx)
|
|
|
199 {
|
|
|
200 /* When we already have some bits in our internal buffer concatenate
|
|
|
201 both inputs first. */
|
|
|
202 if (ctx->buflen != 0)
|
|
|
203 {
|
|
|
204 size_t left_over = ctx->buflen;
|
|
|
205 size_t add = 128 - left_over > len ? len : 128 - left_over;
|
|
|
206
|
|
|
207 memcpy (&ctx->buffer[left_over], buffer, add);
|
|
|
208 ctx->buflen += add;
|
|
|
209
|
|
|
210 if (left_over + add > 64)
|
|
|
211 {
|
|
|
212 md5_process_block (ctx->buffer, (left_over + add) & ~63, ctx);
|
|
|
213 /* The regions in the following copy operation cannot overlap. */
|
|
|
214 memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
|
|
|
215 (left_over + add) & 63);
|
|
|
216 ctx->buflen = (left_over + add) & 63;
|
|
|
217 }
|
|
|
218
|
|
|
219 buffer = (const void *) ((const char *) buffer + add);
|
|
|
220 len -= add;
|
|
|
221 }
|
|
|
222
|
|
|
223 /* Process available complete blocks. */
|
|
|
224 if (len > 64)
|
|
|
225 {
|
|
|
226 #if !_STRING_ARCH_unaligned
|
|
|
227 /* To check alignment gcc has an appropriate operator. Other
|
|
|
228 compilers don't. */
|
|
|
229 # if __GNUC__ >= 2
|
|
|
230 # define UNALIGNED_P(p) (((md5_uintptr) p) % __alignof__ (md5_uint32) != 0)
|
|
|
231 # else
|
|
|
232 # define UNALIGNED_P(p) (((md5_uintptr) p) % sizeof (md5_uint32) != 0)
|
|
|
233 # endif
|
|
|
234 if (UNALIGNED_P (buffer))
|
|
|
235 while (len > 64)
|
|
|
236 {
|
|
|
237 memcpy (ctx->buffer, buffer, 64);
|
|
|
238 md5_process_block (ctx->buffer, 64, ctx);
|
|
|
239 buffer = (const char *) buffer + 64;
|
|
|
240 len -= 64;
|
|
|
241 }
|
|
|
242 else
|
|
|
243 #endif
|
|
|
244 md5_process_block (buffer, len & ~63, ctx);
|
|
|
245 buffer = (const void *) ((const char *) buffer + (len & ~63));
|
|
|
246 len &= 63;
|
|
|
247 }
|
|
|
248
|
|
|
249 /* Move remaining bytes in internal buffer. */
|
|
|
250 if (len > 0)
|
|
|
251 {
|
|
|
252 memcpy (ctx->buffer, buffer, len);
|
|
|
253 ctx->buflen = len;
|
|
|
254 }
|
|
|
255 }
|
|
|
256
|
|
|
257
|
|
|
258 /* These are the four functions used in the four steps of the MD5 algorithm
|
|
|
259 and defined in the RFC 1321. The first function is a little bit optimized
|
|
|
260 (as found in Colin Plumbs public domain implementation). */
|
|
|
261 /* #define FF(b, c, d) ((b & c) | (~b & d)) */
|
|
|
262 #define FF(b, c, d) (d ^ (b & (c ^ d)))
|
|
|
263 #define FG(b, c, d) FF (d, b, c)
|
|
|
264 #define FH(b, c, d) (b ^ c ^ d)
|
|
|
265 #define FI(b, c, d) (c ^ (b | ~d))
|
|
|
266
|
|
|
267 /* Process LEN bytes of BUFFER, accumulating context into CTX.
|
|
|
268 It is assumed that LEN % 64 == 0. */
|
|
|
269
|
|
|
270 void
|
|
|
271 md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx)
|
|
|
272 {
|
|
|
273 md5_uint32 correct_words[16];
|
|
|
274 const md5_uint32 *words = (const md5_uint32 *) buffer;
|
|
|
275 size_t nwords = len / sizeof (md5_uint32);
|
|
|
276 const md5_uint32 *endp = words + nwords;
|
|
|
277 md5_uint32 A = ctx->A;
|
|
|
278 md5_uint32 B = ctx->B;
|
|
|
279 md5_uint32 C = ctx->C;
|
|
|
280 md5_uint32 D = ctx->D;
|
|
|
281
|
|
|
282 /* First increment the byte count. RFC 1321 specifies the possible
|
|
|
283 length of the file up to 2^64 bits. Here we only compute the
|
|
|
284 number of bytes. Do a double word increment. */
|
|
|
285 ctx->total[0] += len;
|
|
|
286 if (ctx->total[0] < len)
|
|
|
287 ++ctx->total[1];
|
|
|
288
|
|
|
289 /* Process all bytes in the buffer with 64 bytes in each round of
|
|
|
290 the loop. */
|
|
|
291 while (words < endp)
|
|
|
292 {
|
|
|
293 md5_uint32 *cwp = correct_words;
|
|
|
294 md5_uint32 A_save = A;
|
|
|
295 md5_uint32 B_save = B;
|
|
|
296 md5_uint32 C_save = C;
|
|
|
297 md5_uint32 D_save = D;
|
|
|
298
|
|
|
299 /* First round: using the given function, the context and a constant
|
|
|
300 the next context is computed. Because the algorithms processing
|
|
|
301 unit is a 32-bit word and it is determined to work on words in
|
|
|
302 little endian byte order we perhaps have to change the byte order
|
|
|
303 before the computation. To reduce the work for the next steps
|
|
|
304 we store the swapped words in the array CORRECT_WORDS. */
|
|
|
305
|
|
|
306 #define OP(a, b, c, d, s, T) \
|
|
|
307 do \
|
|
|
308 { \
|
|
|
309 a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \
|
|
|
310 ++words; \
|
|
|
311 CYCLIC (a, s); \
|
|
|
312 a += b; \
|
|
|
313 } \
|
|
|
314 while (0)
|
|
|
315
|
|
|
316 /* It is unfortunate that C does not provide an operator for
|
|
|
317 cyclic rotation. Hope the C compiler is smart enough. */
|
|
|
318 #define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
|
|
|
319
|
|
|
320 /* Before we start, one word to the strange constants.
|
|
|
321 They are defined in RFC 1321 as
|
|
|
322
|
|
|
323 T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
|
|
|
324 */
|
|
|
325
|
|
|
326 /* Round 1. */
|
|
|
327 OP (A, B, C, D, 7, (md5_uint32) 0xd76aa478);
|
|
|
328 OP (D, A, B, C, 12, (md5_uint32) 0xe8c7b756);
|
|
|
329 OP (C, D, A, B, 17, (md5_uint32) 0x242070db);
|
|
|
330 OP (B, C, D, A, 22, (md5_uint32) 0xc1bdceee);
|
|
|
331 OP (A, B, C, D, 7, (md5_uint32) 0xf57c0faf);
|
|
|
332 OP (D, A, B, C, 12, (md5_uint32) 0x4787c62a);
|
|
|
333 OP (C, D, A, B, 17, (md5_uint32) 0xa8304613);
|
|
|
334 OP (B, C, D, A, 22, (md5_uint32) 0xfd469501);
|
|
|
335 OP (A, B, C, D, 7, (md5_uint32) 0x698098d8);
|
|
|
336 OP (D, A, B, C, 12, (md5_uint32) 0x8b44f7af);
|
|
|
337 OP (C, D, A, B, 17, (md5_uint32) 0xffff5bb1);
|
|
|
338 OP (B, C, D, A, 22, (md5_uint32) 0x895cd7be);
|
|
|
339 OP (A, B, C, D, 7, (md5_uint32) 0x6b901122);
|
|
|
340 OP (D, A, B, C, 12, (md5_uint32) 0xfd987193);
|
|
|
341 OP (C, D, A, B, 17, (md5_uint32) 0xa679438e);
|
|
|
342 OP (B, C, D, A, 22, (md5_uint32) 0x49b40821);
|
|
|
343
|
|
|
344 /* For the second to fourth round we have the possibly swapped words
|
|
|
345 in CORRECT_WORDS. Redefine the macro to take an additional first
|
|
|
346 argument specifying the function to use. */
|
|
|
347 #undef OP
|
|
|
348 #define OP(a, b, c, d, k, s, T) \
|
|
|
349 do \
|
|
|
350 { \
|
|
|
351 a += FX (b, c, d) + correct_words[k] + T; \
|
|
|
352 CYCLIC (a, s); \
|
|
|
353 a += b; \
|
|
|
354 } \
|
|
|
355 while (0)
|
|
|
356
|
|
|
357 #define FX(b, c, d) FG (b, c, d)
|
|
|
358
|
|
|
359 /* Round 2. */
|
|
|
360 OP (A, B, C, D, 1, 5, (md5_uint32) 0xf61e2562);
|
|
|
361 OP (D, A, B, C, 6, 9, (md5_uint32) 0xc040b340);
|
|
|
362 OP (C, D, A, B, 11, 14, (md5_uint32) 0x265e5a51);
|
|
|
363 OP (B, C, D, A, 0, 20, (md5_uint32) 0xe9b6c7aa);
|
|
|
364 OP (A, B, C, D, 5, 5, (md5_uint32) 0xd62f105d);
|
|
|
365 OP (D, A, B, C, 10, 9, (md5_uint32) 0x02441453);
|
|
|
366 OP (C, D, A, B, 15, 14, (md5_uint32) 0xd8a1e681);
|
|
|
367 OP (B, C, D, A, 4, 20, (md5_uint32) 0xe7d3fbc8);
|
|
|
368 OP (A, B, C, D, 9, 5, (md5_uint32) 0x21e1cde6);
|
|
|
369 OP (D, A, B, C, 14, 9, (md5_uint32) 0xc33707d6);
|
|
|
370 OP (C, D, A, B, 3, 14, (md5_uint32) 0xf4d50d87);
|
|
|
371 OP (B, C, D, A, 8, 20, (md5_uint32) 0x455a14ed);
|
|
|
372 OP (A, B, C, D, 13, 5, (md5_uint32) 0xa9e3e905);
|
|
|
373 OP (D, A, B, C, 2, 9, (md5_uint32) 0xfcefa3f8);
|
|
|
374 OP (C, D, A, B, 7, 14, (md5_uint32) 0x676f02d9);
|
|
|
375 OP (B, C, D, A, 12, 20, (md5_uint32) 0x8d2a4c8a);
|
|
|
376
|
|
|
377 #undef FX
|
|
|
378 #define FX(b, c, d) FH (b, c, d)
|
|
|
379
|
|
|
380 /* Round 3. */
|
|
|
381 OP (A, B, C, D, 5, 4, (md5_uint32) 0xfffa3942);
|
|
|
382 OP (D, A, B, C, 8, 11, (md5_uint32) 0x8771f681);
|
|
|
383 OP (C, D, A, B, 11, 16, (md5_uint32) 0x6d9d6122);
|
|
|
384 OP (B, C, D, A, 14, 23, (md5_uint32) 0xfde5380c);
|
|
|
385 OP (A, B, C, D, 1, 4, (md5_uint32) 0xa4beea44);
|
|
|
386 OP (D, A, B, C, 4, 11, (md5_uint32) 0x4bdecfa9);
|
|
|
387 OP (C, D, A, B, 7, 16, (md5_uint32) 0xf6bb4b60);
|
|
|
388 OP (B, C, D, A, 10, 23, (md5_uint32) 0xbebfbc70);
|
|
|
389 OP (A, B, C, D, 13, 4, (md5_uint32) 0x289b7ec6);
|
|
|
390 OP (D, A, B, C, 0, 11, (md5_uint32) 0xeaa127fa);
|
|
|
391 OP (C, D, A, B, 3, 16, (md5_uint32) 0xd4ef3085);
|
|
|
392 OP (B, C, D, A, 6, 23, (md5_uint32) 0x04881d05);
|
|
|
393 OP (A, B, C, D, 9, 4, (md5_uint32) 0xd9d4d039);
|
|
|
394 OP (D, A, B, C, 12, 11, (md5_uint32) 0xe6db99e5);
|
|
|
395 OP (C, D, A, B, 15, 16, (md5_uint32) 0x1fa27cf8);
|
|
|
396 OP (B, C, D, A, 2, 23, (md5_uint32) 0xc4ac5665);
|
|
|
397
|
|
|
398 #undef FX
|
|
|
399 #define FX(b, c, d) FI (b, c, d)
|
|
|
400
|
|
|
401 /* Round 4. */
|
|
|
402 OP (A, B, C, D, 0, 6, (md5_uint32) 0xf4292244);
|
|
|
403 OP (D, A, B, C, 7, 10, (md5_uint32) 0x432aff97);
|
|
|
404 OP (C, D, A, B, 14, 15, (md5_uint32) 0xab9423a7);
|
|
|
405 OP (B, C, D, A, 5, 21, (md5_uint32) 0xfc93a039);
|
|
|
406 OP (A, B, C, D, 12, 6, (md5_uint32) 0x655b59c3);
|
|
|
407 OP (D, A, B, C, 3, 10, (md5_uint32) 0x8f0ccc92);
|
|
|
408 OP (C, D, A, B, 10, 15, (md5_uint32) 0xffeff47d);
|
|
|
409 OP (B, C, D, A, 1, 21, (md5_uint32) 0x85845dd1);
|
|
|
410 OP (A, B, C, D, 8, 6, (md5_uint32) 0x6fa87e4f);
|
|
|
411 OP (D, A, B, C, 15, 10, (md5_uint32) 0xfe2ce6e0);
|
|
|
412 OP (C, D, A, B, 6, 15, (md5_uint32) 0xa3014314);
|
|
|
413 OP (B, C, D, A, 13, 21, (md5_uint32) 0x4e0811a1);
|
|
|
414 OP (A, B, C, D, 4, 6, (md5_uint32) 0xf7537e82);
|
|
|
415 OP (D, A, B, C, 11, 10, (md5_uint32) 0xbd3af235);
|
|
|
416 OP (C, D, A, B, 2, 15, (md5_uint32) 0x2ad7d2bb);
|
|
|
417 OP (B, C, D, A, 9, 21, (md5_uint32) 0xeb86d391);
|
|
|
418
|
|
|
419 /* Add the starting values of the context. */
|
|
|
420 A += A_save;
|
|
|
421 B += B_save;
|
|
|
422 C += C_save;
|
|
|
423 D += D_save;
|
|
|
424 }
|
|
|
425
|
|
|
426 /* Put checksum in context given as argument. */
|
|
|
427 ctx->A = A;
|
|
|
428 ctx->B = B;
|
|
|
429 ctx->C = C;
|
|
|
430 ctx->D = D;
|
|
|
431 }
|
