2 * Copyright © 2000 Keith Packard
3 * Copyright © 2005 Patrick Lam
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of Keith Packard not be used in
10 * advertising or publicity pertaining to distribution of the software without
11 * specific, written prior permission. Keith Packard makes no
12 * representations about the suitability of this software for any purpose. It
13 * is provided "as is" without express or implied warranty.
15 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
17 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
18 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
19 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
20 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
21 * PERFORMANCE OF THIS SOFTWARE.
25 #include "../fc-arch/fcarch.h"
30 #include <sys/types.h>
31 #if defined(HAVE_MMAP) || defined(__CYGWIN__)
33 # include <sys/mman.h>
43 FcDirCacheOpen (FcConfig
*config
, const FcChar8
*dir
, off_t
*size
);
51 static void MD5Init(struct MD5Context
*ctx
);
52 static void MD5Update(struct MD5Context
*ctx
, unsigned char *buf
, unsigned len
);
53 static void MD5Final(unsigned char digest
[16], struct MD5Context
*ctx
);
54 static void MD5Transform(FcChar32 buf
[4], FcChar32 in
[16]);
56 #define FC_DBG_CACHE_REF 1024
58 /* Does not check that the cache has the appropriate arch section. */
60 FcDirCacheValid (const FcChar8
*dir
, FcConfig
*config
)
64 fd
= FcDirCacheOpen (config
, dir
, NULL
);
73 #define CACHEBASE_LEN (1 + 32 + 1 + sizeof (FC_ARCHITECTURE) + sizeof (FC_CACHE_SUFFIX))
75 static const char bin2hex
[] = { '0', '1', '2', '3',
81 FcDirCacheBasename (const FcChar8
* dir
, FcChar8 cache_base
[CACHEBASE_LEN
])
83 unsigned char hash
[16];
86 struct MD5Context ctx
;
89 MD5Update (&ctx
, (unsigned char *)dir
, strlen ((char *) dir
));
91 MD5Final (hash
, &ctx
);
94 hex_hash
= cache_base
+ 1;
95 for (cnt
= 0; cnt
< 16; ++cnt
)
97 hex_hash
[2*cnt
] = bin2hex
[hash
[cnt
] >> 4];
98 hex_hash
[2*cnt
+1] = bin2hex
[hash
[cnt
] & 0xf];
101 strcat ((char *) cache_base
, "-" FC_ARCHITECTURE FC_CACHE_SUFFIX
);
107 FcDirCacheUnlink (const FcChar8
*dir
, FcConfig
*config
)
109 FcChar8
*cache_hashed
= NULL
;
110 FcChar8 cache_base
[CACHEBASE_LEN
];
114 FcDirCacheBasename (dir
, cache_base
);
116 list
= FcStrListCreate (config
->cacheDirs
);
120 while ((cache_dir
= FcStrListNext (list
)))
122 cache_hashed
= FcStrPlus (cache_dir
, cache_base
);
125 (void) unlink ((char *) cache_hashed
);
127 FcStrListDone (list
);
128 /* return FcFalse if something went wrong */
135 FcCacheReadDirs (FcConfig
* config
,
136 FcStrList
*list
, FcFontSet
* set
, FcStrSet
*processed_dirs
)
144 * Read in the results from 'list'.
146 while ((dir
= FcStrListNext (list
)))
148 if (!FcConfigAcceptFilename (config
, dir
))
151 /* Skip this directory if already updated
152 * to avoid the looped directories via symlinks
153 * Clearly a dir not in fonts.conf shouldn't be globally cached.
156 if (FcStrSetMember (processed_dirs
, dir
))
158 if (!FcStrSetAdd (processed_dirs
, dir
))
161 subdirs
= FcStrSetCreate ();
164 fprintf (stderr
, "Can't create directory set\n");
169 FcDirScanConfig (set
, subdirs
,
170 config
->blanks
, dir
, FcFalse
, config
);
172 sublist
= FcStrListCreate (subdirs
);
173 FcStrSetDestroy (subdirs
);
176 fprintf (stderr
, "Can't create subdir list in \"%s\"\n", dir
);
180 ret
+= FcCacheReadDirs (config
, sublist
, set
, processed_dirs
);
182 FcStrListDone (list
);
187 FcCacheRead (FcConfig
*config
)
189 FcFontSet
*s
= FcFontSetCreate();
190 FcStrSet
*processed_dirs
;
195 processed_dirs
= FcStrSetCreate();
199 if (FcCacheReadDirs (config
, FcConfigGetConfigDirs (config
), s
, processed_dirs
))
202 FcStrSetDestroy (processed_dirs
);
206 FcStrSetDestroy (processed_dirs
);
208 FcFontSetDestroy (s
);
212 /* Opens the cache file for 'dir' for reading.
213 * This searches the list of cache dirs for the relevant cache file,
214 * returning the first one found.
217 FcDirCacheOpen (FcConfig
*config
, const FcChar8
*dir
, off_t
*size
)
220 FcChar8 cache_base
[CACHEBASE_LEN
];
223 struct stat file_stat
, dir_stat
;
225 if (stat ((char *) dir
, &dir_stat
) < 0)
228 FcDirCacheBasename (dir
, cache_base
);
230 list
= FcStrListCreate (config
->cacheDirs
);
234 while ((cache_dir
= FcStrListNext (list
)))
236 FcChar8
*cache_hashed
= FcStrPlus (cache_dir
, cache_base
);
239 fd
= open((char *) cache_hashed
, O_RDONLY
| O_BINARY
);
240 FcStrFree (cache_hashed
);
242 if (fstat (fd
, &file_stat
) >= 0 &&
243 dir_stat
.st_mtime
<= file_stat
.st_mtime
)
246 *size
= file_stat
.st_size
;
253 FcStrListDone (list
);
260 FcDirCacheUnmap (FcCache
*cache
)
262 if (cache
->magic
== FC_CACHE_MAGIC_COPY
)
267 #if defined(HAVE_MMAP) || defined(__CYGWIN__)
268 munmap (cache
, cache
->size
);
269 #elif defined(_WIN32)
270 UnmapViewOfFile (cache
);
275 /* read serialized state from the cache file */
277 FcDirCacheMap (int fd
, off_t size
)
280 FcBool allocated
= FcFalse
;
282 if (size
< sizeof (FcCache
))
284 #if defined(HAVE_MMAP) || defined(__CYGWIN__)
285 cache
= mmap (0, size
, PROT_READ
, MAP_SHARED
, fd
, 0);
286 #elif defined(_WIN32)
291 hFileMap
= CreateFileMapping((HANDLE
) _get_osfhandle(fd
), NULL
,
292 PAGE_READONLY
, 0, 0, NULL
);
293 if (hFileMap
!= NULL
)
295 cache
= MapViewOfFile (hFileMap
, FILE_MAP_READ
, 0, 0, size
);
296 CloseHandle (hFileMap
);
302 cache
= malloc (size
);
306 if (read (fd
, cache
, size
) != size
)
313 if (cache
->magic
!= FC_CACHE_MAGIC
||
320 #if defined(HAVE_MMAP) || defined(__CYGWIN__)
321 munmap (cache
, size
);
322 #elif defined(_WIN32)
323 UnmapViewOfFile (cache
);
329 /* Mark allocated caches so they're freed rather than unmapped */
331 cache
->magic
= FC_CACHE_MAGIC_COPY
;
337 FcDirCacheRead (FcFontSet
* set
, FcStrSet
* dirs
,
338 const FcChar8
*dir
, FcConfig
*config
)
344 FcFontSet
*cache_set
;
345 intptr_t *cache_dirs
;
346 FcPattern
**cache_fonts
;
348 fd
= FcDirCacheOpen (config
, dir
, &size
);
352 cache
= FcDirCacheMap (fd
, size
);
356 if (FcDebug() & FC_DBG_CACHE
)
357 printf ("FcDirCacheRead failed to map cache for %s\n", dir
);
362 cache_set
= FcCacheSet (cache
);
363 cache_fonts
= FcFontSetFonts(cache_set
);
364 if (FcDebug() & FC_DBG_CACHE
)
365 printf ("FcDirCacheRead mapped cache for %s (%d fonts %d subdirs)\n",
366 dir
, cache_set
->nfont
, cache
->dirs_count
);
367 for (i
= 0; i
< cache_set
->nfont
; i
++)
369 FcPattern
*font
= FcEncodedOffsetToPtr (cache_set
,
372 if (FcDebug() & FC_DBG_CACHEV
) {
373 printf ("Mapped font %d\n", i
);
374 FcPatternPrint (font
);
376 FcFontSetAdd (set
, font
);
379 cache_dirs
= FcCacheDirs (cache
);
380 for (i
= 0; i
< cache
->dirs_count
; i
++)
381 FcStrSetAdd (dirs
, FcOffsetToPtr (cache_dirs
,
386 FcConfigAddFontDir (config
, (FcChar8
*)dir
);
402 FcDirCacheProduce (FcFontSet
*set
, const FcChar8
*dir
, FcStrSet
*dirs
)
404 FcSerialize
*serialize
= FcSerializeCreate ();
407 intptr_t cache_offset
;
408 intptr_t dirs_offset
;
409 FcChar8
*dir_serialize
;
410 intptr_t *dirs_serialize
;
411 FcFontSet
*set_serialize
;
416 * Space for cache structure
418 cache_offset
= FcSerializeReserve (serialize
, sizeof (FcCache
));
422 if (!FcStrSerializeAlloc (serialize
, dir
))
427 dirs_offset
= FcSerializeAlloc (serialize
, dirs
, dirs
->num
* sizeof (FcChar8
*));
428 for (i
= 0; i
< dirs
->num
; i
++)
429 if (!FcStrSerializeAlloc (serialize
, dirs
->strs
[i
]))
435 if (!FcFontSetSerializeAlloc (serialize
, set
))
438 /* Serialize layout complete. Now allocate space and fill it */
439 cache
= malloc (serialize
->size
);
442 /* shut up valgrind */
443 memset (cache
, 0, serialize
->size
);
445 serialize
->linear
= cache
;
447 cache
->magic
= FC_CACHE_MAGIC
;
448 cache
->size
= serialize
->size
;
451 * Serialize directory name
453 dir_serialize
= FcStrSerialize (serialize
, dir
);
456 cache
->dir
= FcPtrToOffset (cache
, dir_serialize
);
461 dirs_serialize
= FcSerializePtr (serialize
, dirs
);
464 cache
->dirs
= FcPtrToOffset (cache
, dirs_serialize
);
465 cache
->dirs_count
= dirs
->num
;
466 for (i
= 0; i
< dirs
->num
; i
++)
468 FcChar8
*d_serialize
= FcStrSerialize (serialize
, dirs
->strs
[i
]);
471 dirs_serialize
[i
] = FcPtrToOffset (dirs_serialize
, d_serialize
);
477 set_serialize
= FcFontSetSerialize (serialize
, set
);
480 cache
->set
= FcPtrToOffset (cache
, set_serialize
);
482 FcSerializeDestroy (serialize
);
489 FcSerializeDestroy (serialize
);
494 FcMakeDirectory (const FcChar8
*dir
)
499 if (strlen ((char *) dir
) == 0)
502 parent
= FcStrDirname (dir
);
505 if (access ((char *) parent
, W_OK
|X_OK
) == 0)
506 ret
= mkdir ((char *) dir
, 0777) == 0;
507 else if (access ((char *) parent
, F_OK
) == -1)
508 ret
= FcMakeDirectory (parent
) && (mkdir ((char *) dir
, 0777) == 0);
515 /* write serialized state to the cache file */
517 FcDirCacheWrite (FcFontSet
*set
, FcStrSet
*dirs
, const FcChar8
*dir
, FcConfig
*config
)
519 FcChar8 cache_base
[CACHEBASE_LEN
];
520 FcChar8
*cache_hashed
;
525 FcChar8
*cache_dir
= NULL
;
529 * Write it to the first directory in the list which is writable
532 list
= FcStrListCreate (config
->cacheDirs
);
535 while ((test_dir
= FcStrListNext (list
))) {
536 if (access ((char *) test_dir
, W_OK
|X_OK
) == 0)
538 cache_dir
= test_dir
;
544 * If the directory doesn't exist, try to create it
546 if (access ((char *) test_dir
, F_OK
) == -1) {
547 if (FcMakeDirectory (test_dir
))
549 cache_dir
= test_dir
;
555 FcStrListDone (list
);
559 FcDirCacheBasename (dir
, cache_base
);
560 cache_hashed
= FcStrPlus (cache_dir
, cache_base
);
564 cache
= FcDirCacheProduce (set
, dir
, dirs
);
569 if (FcDebug () & FC_DBG_CACHE
)
570 printf ("FcDirCacheWriteDir dir \"%s\" file \"%s\"\n",
573 atomic
= FcAtomicCreate ((FcChar8
*)cache_hashed
);
577 if (!FcAtomicLock (atomic
))
580 fd
= open((char *)FcAtomicNewFile (atomic
), O_RDWR
| O_CREAT
| O_BINARY
, 0666);
584 if (write (fd
, cache
, cache
->size
) != cache
->size
)
586 perror ("write cache");
591 if (!FcAtomicReplaceOrig(atomic
))
593 FcStrFree ((FcChar8
*)cache_hashed
);
594 FcAtomicUnlock (atomic
);
595 FcAtomicDestroy (atomic
);
601 FcAtomicUnlock (atomic
);
603 FcAtomicDestroy (atomic
);
607 FcStrFree ((FcChar8
*)cache_hashed
);
612 * This code implements the MD5 message-digest algorithm.
613 * The algorithm is due to Ron Rivest. This code was
614 * written by Colin Plumb in 1993, no copyright is claimed.
615 * This code is in the public domain; do with it what you wish.
617 * Equivalent code is available from RSA Data Security, Inc.
618 * This code has been tested against that, and is equivalent,
619 * except that you don't need to include two pages of legalese
622 * To compute the message digest of a chunk of bytes, declare an
623 * MD5Context structure, pass it to MD5Init, call MD5Update as
624 * needed on buffers full of bytes, and then call MD5Final, which
625 * will fill a supplied 16-byte array with the digest.
629 #define byteReverse(buf, len) /* Nothing */
632 * Note: this code is harmless on little-endian machines.
634 void byteReverse(unsigned char *buf
, unsigned longs
)
638 t
= (FcChar32
) ((unsigned) buf
[3] << 8 | buf
[2]) << 16 |
639 ((unsigned) buf
[1] << 8 | buf
[0]);
640 *(FcChar32
*) buf
= t
;
647 * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
648 * initialization constants.
650 static void MD5Init(struct MD5Context
*ctx
)
652 ctx
->buf
[0] = 0x67452301;
653 ctx
->buf
[1] = 0xefcdab89;
654 ctx
->buf
[2] = 0x98badcfe;
655 ctx
->buf
[3] = 0x10325476;
662 * Update context to reflect the concatenation of another buffer full
665 static void MD5Update(struct MD5Context
*ctx
, unsigned char *buf
, unsigned len
)
669 /* Update bitcount */
672 if ((ctx
->bits
[0] = t
+ ((FcChar32
) len
<< 3)) < t
)
673 ctx
->bits
[1]++; /* Carry from low to high */
674 ctx
->bits
[1] += len
>> 29;
676 t
= (t
>> 3) & 0x3f; /* Bytes already in shsInfo->data */
678 /* Handle any leading odd-sized chunks */
681 unsigned char *p
= (unsigned char *) ctx
->in
+ t
;
689 byteReverse(ctx
->in
, 16);
690 MD5Transform(ctx
->buf
, (FcChar32
*) ctx
->in
);
694 /* Process data in 64-byte chunks */
697 memcpy(ctx
->in
, buf
, 64);
698 byteReverse(ctx
->in
, 16);
699 MD5Transform(ctx
->buf
, (FcChar32
*) ctx
->in
);
704 /* Handle any remaining bytes of data. */
706 memcpy(ctx
->in
, buf
, len
);
710 * Final wrapup - pad to 64-byte boundary with the bit pattern
711 * 1 0* (64-bit count of bits processed, MSB-first)
713 static void MD5Final(unsigned char digest
[16], struct MD5Context
*ctx
)
718 /* Compute number of bytes mod 64 */
719 count
= (ctx
->bits
[0] >> 3) & 0x3F;
721 /* Set the first char of padding to 0x80. This is safe since there is
722 always at least one byte free */
726 /* Bytes of padding needed to make 64 bytes */
727 count
= 64 - 1 - count
;
729 /* Pad out to 56 mod 64 */
731 /* Two lots of padding: Pad the first block to 64 bytes */
733 byteReverse(ctx
->in
, 16);
734 MD5Transform(ctx
->buf
, (FcChar32
*) ctx
->in
);
736 /* Now fill the next block with 56 bytes */
737 memset(ctx
->in
, 0, 56);
739 /* Pad block to 56 bytes */
740 memset(p
, 0, count
- 8);
742 byteReverse(ctx
->in
, 14);
744 /* Append length in bits and transform */
745 ((FcChar32
*) ctx
->in
)[14] = ctx
->bits
[0];
746 ((FcChar32
*) ctx
->in
)[15] = ctx
->bits
[1];
748 MD5Transform(ctx
->buf
, (FcChar32
*) ctx
->in
);
749 byteReverse((unsigned char *) ctx
->buf
, 4);
750 memcpy(digest
, ctx
->buf
, 16);
751 memset(ctx
, 0, sizeof(ctx
)); /* In case it's sensitive */
755 /* The four core functions - F1 is optimized somewhat */
757 /* #define F1(x, y, z) (x & y | ~x & z) */
758 #define F1(x, y, z) (z ^ (x & (y ^ z)))
759 #define F2(x, y, z) F1(z, x, y)
760 #define F3(x, y, z) (x ^ y ^ z)
761 #define F4(x, y, z) (y ^ (x | ~z))
763 /* This is the central step in the MD5 algorithm. */
764 #define MD5STEP(f, w, x, y, z, data, s) \
765 ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
768 * The core of the MD5 algorithm, this alters an existing MD5 hash to
769 * reflect the addition of 16 longwords of new data. MD5Update blocks
770 * the data and converts bytes into longwords for this routine.
772 static void MD5Transform(FcChar32 buf
[4], FcChar32 in
[16])
774 register FcChar32 a
, b
, c
, d
;
781 MD5STEP(F1
, a
, b
, c
, d
, in
[0] + 0xd76aa478, 7);
782 MD5STEP(F1
, d
, a
, b
, c
, in
[1] + 0xe8c7b756, 12);
783 MD5STEP(F1
, c
, d
, a
, b
, in
[2] + 0x242070db, 17);
784 MD5STEP(F1
, b
, c
, d
, a
, in
[3] + 0xc1bdceee, 22);
785 MD5STEP(F1
, a
, b
, c
, d
, in
[4] + 0xf57c0faf, 7);
786 MD5STEP(F1
, d
, a
, b
, c
, in
[5] + 0x4787c62a, 12);
787 MD5STEP(F1
, c
, d
, a
, b
, in
[6] + 0xa8304613, 17);
788 MD5STEP(F1
, b
, c
, d
, a
, in
[7] + 0xfd469501, 22);
789 MD5STEP(F1
, a
, b
, c
, d
, in
[8] + 0x698098d8, 7);
790 MD5STEP(F1
, d
, a
, b
, c
, in
[9] + 0x8b44f7af, 12);
791 MD5STEP(F1
, c
, d
, a
, b
, in
[10] + 0xffff5bb1, 17);
792 MD5STEP(F1
, b
, c
, d
, a
, in
[11] + 0x895cd7be, 22);
793 MD5STEP(F1
, a
, b
, c
, d
, in
[12] + 0x6b901122, 7);
794 MD5STEP(F1
, d
, a
, b
, c
, in
[13] + 0xfd987193, 12);
795 MD5STEP(F1
, c
, d
, a
, b
, in
[14] + 0xa679438e, 17);
796 MD5STEP(F1
, b
, c
, d
, a
, in
[15] + 0x49b40821, 22);
798 MD5STEP(F2
, a
, b
, c
, d
, in
[1] + 0xf61e2562, 5);
799 MD5STEP(F2
, d
, a
, b
, c
, in
[6] + 0xc040b340, 9);
800 MD5STEP(F2
, c
, d
, a
, b
, in
[11] + 0x265e5a51, 14);
801 MD5STEP(F2
, b
, c
, d
, a
, in
[0] + 0xe9b6c7aa, 20);
802 MD5STEP(F2
, a
, b
, c
, d
, in
[5] + 0xd62f105d, 5);
803 MD5STEP(F2
, d
, a
, b
, c
, in
[10] + 0x02441453, 9);
804 MD5STEP(F2
, c
, d
, a
, b
, in
[15] + 0xd8a1e681, 14);
805 MD5STEP(F2
, b
, c
, d
, a
, in
[4] + 0xe7d3fbc8, 20);
806 MD5STEP(F2
, a
, b
, c
, d
, in
[9] + 0x21e1cde6, 5);
807 MD5STEP(F2
, d
, a
, b
, c
, in
[14] + 0xc33707d6, 9);
808 MD5STEP(F2
, c
, d
, a
, b
, in
[3] + 0xf4d50d87, 14);
809 MD5STEP(F2
, b
, c
, d
, a
, in
[8] + 0x455a14ed, 20);
810 MD5STEP(F2
, a
, b
, c
, d
, in
[13] + 0xa9e3e905, 5);
811 MD5STEP(F2
, d
, a
, b
, c
, in
[2] + 0xfcefa3f8, 9);
812 MD5STEP(F2
, c
, d
, a
, b
, in
[7] + 0x676f02d9, 14);
813 MD5STEP(F2
, b
, c
, d
, a
, in
[12] + 0x8d2a4c8a, 20);
815 MD5STEP(F3
, a
, b
, c
, d
, in
[5] + 0xfffa3942, 4);
816 MD5STEP(F3
, d
, a
, b
, c
, in
[8] + 0x8771f681, 11);
817 MD5STEP(F3
, c
, d
, a
, b
, in
[11] + 0x6d9d6122, 16);
818 MD5STEP(F3
, b
, c
, d
, a
, in
[14] + 0xfde5380c, 23);
819 MD5STEP(F3
, a
, b
, c
, d
, in
[1] + 0xa4beea44, 4);
820 MD5STEP(F3
, d
, a
, b
, c
, in
[4] + 0x4bdecfa9, 11);
821 MD5STEP(F3
, c
, d
, a
, b
, in
[7] + 0xf6bb4b60, 16);
822 MD5STEP(F3
, b
, c
, d
, a
, in
[10] + 0xbebfbc70, 23);
823 MD5STEP(F3
, a
, b
, c
, d
, in
[13] + 0x289b7ec6, 4);
824 MD5STEP(F3
, d
, a
, b
, c
, in
[0] + 0xeaa127fa, 11);
825 MD5STEP(F3
, c
, d
, a
, b
, in
[3] + 0xd4ef3085, 16);
826 MD5STEP(F3
, b
, c
, d
, a
, in
[6] + 0x04881d05, 23);
827 MD5STEP(F3
, a
, b
, c
, d
, in
[9] + 0xd9d4d039, 4);
828 MD5STEP(F3
, d
, a
, b
, c
, in
[12] + 0xe6db99e5, 11);
829 MD5STEP(F3
, c
, d
, a
, b
, in
[15] + 0x1fa27cf8, 16);
830 MD5STEP(F3
, b
, c
, d
, a
, in
[2] + 0xc4ac5665, 23);
832 MD5STEP(F4
, a
, b
, c
, d
, in
[0] + 0xf4292244, 6);
833 MD5STEP(F4
, d
, a
, b
, c
, in
[7] + 0x432aff97, 10);
834 MD5STEP(F4
, c
, d
, a
, b
, in
[14] + 0xab9423a7, 15);
835 MD5STEP(F4
, b
, c
, d
, a
, in
[5] + 0xfc93a039, 21);
836 MD5STEP(F4
, a
, b
, c
, d
, in
[12] + 0x655b59c3, 6);
837 MD5STEP(F4
, d
, a
, b
, c
, in
[3] + 0x8f0ccc92, 10);
838 MD5STEP(F4
, c
, d
, a
, b
, in
[10] + 0xffeff47d, 15);
839 MD5STEP(F4
, b
, c
, d
, a
, in
[1] + 0x85845dd1, 21);
840 MD5STEP(F4
, a
, b
, c
, d
, in
[8] + 0x6fa87e4f, 6);
841 MD5STEP(F4
, d
, a
, b
, c
, in
[15] + 0xfe2ce6e0, 10);
842 MD5STEP(F4
, c
, d
, a
, b
, in
[6] + 0xa3014314, 15);
843 MD5STEP(F4
, b
, c
, d
, a
, in
[13] + 0x4e0811a1, 21);
844 MD5STEP(F4
, a
, b
, c
, d
, in
[4] + 0xf7537e82, 6);
845 MD5STEP(F4
, d
, a
, b
, c
, in
[11] + 0xbd3af235, 10);
846 MD5STEP(F4
, c
, d
, a
, b
, in
[2] + 0x2ad7d2bb, 15);
847 MD5STEP(F4
, b
, c
, d
, a
, in
[9] + 0xeb86d391, 21);