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-rw-r--r--src/fccache.c523
1 files changed, 473 insertions, 50 deletions
diff --git a/src/fccache.c b/src/fccache.c
index 13c38963..45413e0b 100644
--- a/src/fccache.c
+++ b/src/fccache.c
@@ -25,6 +25,7 @@
#include <fcntl.h>
#include <dirent.h>
+#include <string.h>
#include <sys/mman.h>
#include <sys/utsname.h>
#include <sys/types.h>
@@ -35,8 +36,14 @@
#define ENDIAN_TEST 0x12345678
#define MACHINE_SIGNATURE_SIZE 9 + 5*20 + 1
+static int
+FcDirCacheOpen (char * cache_file);
+
+static char *
+FcDirCacheHashName (char * cache_file, int collisions);
+
static off_t
-FcCacheSkipToArch (int fd, const char * arch);
+FcCacheSkipToArch (int fd, const char * arch, FcBool global);
static FcBool
FcCacheCopyOld (int fd, int fd_orig, off_t start);
@@ -62,6 +69,17 @@ FcCacheHaveBank (int bank);
static void
FcCacheAddBankDir (int bank, const char * dir);
+struct MD5Context {
+ FcChar32 buf[4];
+ FcChar32 bits[2];
+ unsigned char in[64];
+};
+
+static void MD5Init(struct MD5Context *ctx);
+static void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len);
+static void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
+static void MD5Transform(FcChar32 buf[4], FcChar32 in[16]);
+
#define FC_DBG_CACHE_REF 1024
static char *
@@ -104,6 +122,33 @@ FcCacheReadString (int fd, char *dest, int len)
return 0;
}
+static void
+FcCacheSkipString (int fd)
+{
+ FcChar8 c;
+ FcBool escape;
+
+ escape = FcFalse;
+ while (read (fd, &c, 1) == 1)
+ {
+ if (!escape)
+ {
+ switch (c) {
+ case '"':
+ c = '\0';
+ break;
+ case '\\':
+ escape = FcTrue;
+ continue;
+ }
+ }
+ if (c == '\0')
+ return;
+ escape = FcFalse;
+ }
+ return;
+}
+
static FcBool
FcCacheWriteString (int fd, const char *chars)
{
@@ -156,7 +201,7 @@ FcGlobalCacheLoad (FcGlobalCache *cache,
const FcChar8 *cache_file,
FcConfig *config)
{
- char name_buf[8192];
+ char name_buf[FC_MAX_FILE_LEN];
FcGlobalCacheDir *d, *next;
FcFileTime config_time = FcConfigModifiedTime (config);
char * current_arch_machine_name;
@@ -176,7 +221,7 @@ FcGlobalCacheLoad (FcGlobalCache *cache,
current_arch_machine_name = FcCacheMachineSignature ();
current_arch_start = FcCacheSkipToArch(cache->fd,
- current_arch_machine_name);
+ current_arch_machine_name, FcTrue);
if (current_arch_start < 0)
goto bail_and_destroy;
@@ -343,7 +388,8 @@ FcGlobalCacheSave (FcGlobalCache *cache,
current_arch_start = 0;
else
current_arch_start = FcCacheSkipToArch (fd_orig,
- current_arch_machine_name);
+ current_arch_machine_name,
+ FcTrue);
if (current_arch_start < 0)
current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END));
@@ -437,12 +483,17 @@ FcCacheNextOffset(off_t w)
/* return the address of the segment for the provided arch,
* or -1 if arch not found */
static off_t
-FcCacheSkipToArch (int fd, const char * arch)
+FcCacheSkipToArch (int fd, const char * arch, FcBool global)
{
char candidate_arch_machine_name_count[MACHINE_SIGNATURE_SIZE + 9];
char * candidate_arch;
off_t current_arch_start = 0;
+ lseek (fd, 0, SEEK_SET);
+ if (!global)
+ FcCacheSkipString (fd);
+ current_arch_start = lseek (fd, 0, SEEK_CUR);
+
/* skip arches that are not the current arch */
while (1)
{
@@ -542,21 +593,27 @@ FcCacheCopyOld (int fd, int fd_orig, off_t start)
FcBool
FcDirCacheValid (const FcChar8 *dir)
{
- FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
+ FcChar8 *cache_file;
struct stat file_stat, dir_stat;
+ int fd;
if (stat ((char *) dir, &dir_stat) < 0)
- {
- FcStrFree (cache_file);
- return FcFalse;
- }
- if (stat ((char *) cache_file, &file_stat) < 0)
- {
- FcStrFree (cache_file);
return FcFalse;
- }
+ cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
+ if (!cache_file)
+ return FcFalse;
+
+ fd = FcDirCacheOpen ((char *)cache_file);
+
+ if (fd < 0)
+ goto bail;
+ if (fstat (fd, &file_stat) < 0)
+ goto bail1;
+
+ close (fd);
FcStrFree (cache_file);
+
/*
* If the directory has been modified more recently than
* the cache file, the cache is not valid
@@ -565,6 +622,12 @@ FcDirCacheValid (const FcChar8 *dir)
return FcFalse;
return FcTrue;
+
+ bail1:
+ close (fd);
+ bail:
+ FcStrFree (cache_file);
+ return FcFalse;
}
/* Assumes that the cache file in 'dir' exists.
@@ -572,23 +635,32 @@ FcDirCacheValid (const FcChar8 *dir)
FcBool
FcDirCacheHasCurrentArch (const FcChar8 *dir)
{
- FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
+ char *cache_file;
int fd;
off_t current_arch_start;
char *current_arch_machine_name;
- current_arch_machine_name = FcCacheMachineSignature();
- fd = open ((char *)cache_file, O_RDONLY);
- if (fd == -1)
- return FcFalse;
+ cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
+ if (!cache_file)
+ return FcFalse;
- current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+ fd = FcDirCacheOpen (cache_file);
+ if (fd < 0)
+ goto bail;
+
+ current_arch_machine_name = FcCacheMachineSignature();
+ current_arch_start = FcCacheSkipToArch(fd,
+ current_arch_machine_name, FcFalse);
close (fd);
if (current_arch_start < 0)
return FcFalse;
return FcTrue;
+
+ bail:
+ free (cache_file);
+ return FcFalse;
}
FcBool
@@ -718,26 +790,101 @@ FcCacheRead (FcConfig *config, FcGlobalCache * cache)
return 0;
}
+static const char bin2hex[] = { '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'a', 'b',
+ 'c', 'd', 'e', 'f' };
+
+static char *
+FcDirCacheHashName (char * cache_file, int collisions)
+{
+ unsigned char hash[16], hex_hash[33];
+ char *cache_hashed;
+ unsigned char uscore = '_';
+ int cnt, i;
+ FcChar8 *tmp;
+ struct MD5Context ctx;
+
+ MD5Init (&ctx);
+ MD5Update (&ctx, (unsigned char *)cache_file, strlen (cache_file));
+
+ for (i = 0; i < collisions; i++)
+ MD5Update (&ctx, &uscore, 1);
+
+ MD5Final (hash, &ctx);
+
+ for (cnt = 0; cnt < 16; ++cnt)
+ {
+ hex_hash[2*cnt] = bin2hex[hash[cnt] >> 4];
+ hex_hash[2*cnt+1] = bin2hex[hash[cnt] & 0xf];
+ }
+ hex_hash[32] = 0;
+
+ tmp = FcStrPlus ((FcChar8 *)hex_hash, (FcChar8 *)FC_CACHE_SUFFIX);
+ if (!tmp)
+ return 0;
+
+ cache_hashed = (char *)FcStrPlus ((FcChar8 *)PKGCACHEDIR, tmp);
+ free (tmp);
+
+ return cache_hashed;
+}
+
+/* Opens the hashed name for cache_file.
+ * This would fail in the unlikely event of a collision and subsequent
+ * removal of the file which originally caused the collision. */
+static int
+FcDirCacheOpen (char *cache_file)
+{
+ int fd = -1, collisions = 0;
+ char *cache_hashed;
+ char name_buf[FC_MAX_FILE_LEN];
+
+ do
+ {
+ cache_hashed = FcDirCacheHashName (cache_file, collisions++);
+ if (!cache_hashed)
+ return -1;
+
+ if (fd > 0)
+ close (fd);
+ fd = open(cache_hashed, O_RDONLY);
+ if (fd == -1)
+ return -1;
+ FcCacheReadString (fd, name_buf, sizeof (name_buf));
+ if (!strlen(name_buf))
+ goto bail;
+ } while (strcmp (name_buf, cache_file) != 0);
+ return fd;
+
+ bail:
+ close (fd);
+ return -1;
+}
+
/* read serialized state from the cache file */
FcBool
FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir)
{
- char *cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- int fd;
- char * current_arch_machine_name;
- char candidate_arch_machine_name[9+MACHINE_SIGNATURE_SIZE];
- off_t current_arch_start = 0;
- char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1];
+ char *cache_file;
+ int fd;
+ char *current_arch_machine_name;
+ char candidate_arch_machine_name[9+MACHINE_SIGNATURE_SIZE];
+ off_t current_arch_start = 0;
+ char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1];
+ cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
if (!cache_file)
- goto bail;
+ return FcFalse;
- current_arch_machine_name = FcCacheMachineSignature();
- fd = open(cache_file, O_RDONLY);
- if (fd == -1)
- goto bail;
+ fd = FcDirCacheOpen (cache_file);
+ if (fd < 0)
+ goto bail;
- current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+ current_arch_machine_name = FcCacheMachineSignature();
+ current_arch_start = FcCacheSkipToArch(fd,
+ current_arch_machine_name,
+ FcFalse);
if (current_arch_start < 0)
goto bail1;
@@ -844,58 +991,89 @@ FcDirCacheProduce (FcFontSet *set, FcCache *metadata)
FcBool
FcDirCacheWrite (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir)
{
- FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
+ char *cache_file;
+ char *cache_hashed;
int fd, fd_orig, i, dirs_count;
FcAtomic *atomic;
FcCache metadata;
off_t current_arch_start = 0, truncate_to;
+ char name_buf[FC_MAX_FILE_LEN];
+ int collisions;
char *current_arch_machine_name, * header;
- void *current_dir_block;
+ void *current_dir_block = 0;
+ cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
if (!cache_file)
goto bail;
+ /* Ensure that we're not trampling a cache for some other dir. */
+ /* This is slightly different from FcDirCacheOpen, since it
+ * needs the filename, not the file descriptor. */
+ fd = -1; collisions = 0;
+ do
+ {
+ cache_hashed = FcDirCacheHashName (cache_file, collisions++);
+ if (!cache_hashed)
+ goto bail0;
+
+ if (fd > 0)
+ close (fd);
+ fd = open(cache_hashed, O_RDONLY);
+ if (fd == -1)
+ break;
+ FcCacheReadString (fd, name_buf, sizeof (name_buf));
+ close (fd);
+
+ if (!strlen(name_buf))
+ break;
+
+ if (strcmp (name_buf, cache_file) != 0)
+ continue;
+ } while (0);
+
current_dir_block = FcDirCacheProduce (set, &metadata);
if (metadata.count && !current_dir_block)
- goto bail0;
+ goto bail1;
if (FcDebug () & FC_DBG_CACHE)
printf ("FcDirCacheWriteDir cache_file \"%s\"\n", cache_file);
- atomic = FcAtomicCreate (cache_file);
+ atomic = FcAtomicCreate ((FcChar8 *)cache_hashed);
if (!atomic)
- goto bail0;
+ goto bail1;
if (!FcAtomicLock (atomic))
- goto bail1;
+ goto bail2;
fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY, 0666);
fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT, 0666);
if (fd == -1)
- goto bail2;
+ goto bail3;
+
+ FcCacheWriteString (fd, cache_file);
current_arch_machine_name = FcCacheMachineSignature ();
current_arch_start = 0;
if (fd_orig != -1)
current_arch_start =
- FcCacheSkipToArch(fd_orig, current_arch_machine_name);
+ FcCacheSkipToArch(fd_orig, current_arch_machine_name, FcFalse);
if (current_arch_start < 0)
current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END));
if (fd_orig != -1 && !FcCacheCopyOld(fd, fd_orig, current_arch_start))
- goto bail3;
+ goto bail4;
if (fd_orig != -1)
close (fd_orig);
current_arch_start = lseek(fd, 0, SEEK_CUR);
if (ftruncate (fd, current_arch_start) == -1)
- goto bail3;
+ goto bail4;
/* allocate space for subdir names in this block */
dirs_count = 0;
@@ -907,11 +1085,11 @@ FcDirCacheWrite (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir)
truncate_to = FcCacheNextOffset (FcCacheNextOffset (current_arch_start + sizeof (FcCache) + dirs_count) + metadata.count) - current_arch_start;
header = malloc (10 + strlen (current_arch_machine_name));
if (!header)
- goto bail3;
+ goto bail4;
sprintf (header, "%8x ", (int)truncate_to);
strcat (header, current_arch_machine_name);
if (!FcCacheWriteString (fd, header))
- goto bail4;
+ goto bail5;
for (i = 0; i < dirs->size; i++)
FcCacheWriteString (fd, (char *)dirs->strs[i]);
@@ -927,23 +1105,25 @@ FcDirCacheWrite (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir)
/* this actually serves to pad out the cache file, if needed */
if (ftruncate (fd, current_arch_start + truncate_to) == -1)
- goto bail4;
+ goto bail5;
close(fd);
if (!FcAtomicReplaceOrig(atomic))
- goto bail4;
+ goto bail5;
FcAtomicUnlock (atomic);
FcAtomicDestroy (atomic);
return FcTrue;
- bail4:
+ bail5:
free (header);
- bail3:
+ bail4:
close (fd);
- bail2:
+ bail3:
FcAtomicUnlock (atomic);
- bail1:
+ bail2:
FcAtomicDestroy (atomic);
+ bail1:
+ free (cache_hashed);
bail0:
unlink ((char *)cache_file);
free (cache_file);
@@ -1070,3 +1250,246 @@ FcCacheFindBankDir (int bank)
return bankDirs[bi];
}
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest. This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ */
+
+#ifndef HIGHFIRST
+#define byteReverse(buf, len) /* Nothing */
+#else
+/*
+ * Note: this code is harmless on little-endian machines.
+ */
+void byteReverse(unsigned char *buf, unsigned longs)
+{
+ FcChar32 t;
+ do {
+ t = (FcChar32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ *(FcChar32 *) buf = t;
+ buf += 4;
+ } while (--longs);
+}
+#endif
+
+/*
+ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+static void MD5Init(struct MD5Context *ctx)
+{
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
+
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
+}
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+static void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len)
+{
+ FcChar32 t;
+
+ /* Update bitcount */
+
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((FcChar32) len << 3)) < t)
+ ctx->bits[1]++; /* Carry from low to high */
+ ctx->bits[1] += len >> 29;
+
+ t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
+
+ /* Handle any leading odd-sized chunks */
+
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
+
+ t = 64 - t;
+ if (len < t) {
+ memcpy(p, buf, len);
+ return;
+ }
+ memcpy(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+ buf += t;
+ len -= t;
+ }
+ /* Process data in 64-byte chunks */
+
+ while (len >= 64) {
+ memcpy(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
+
+ /* Handle any remaining bytes of data. */
+
+ memcpy(ctx->in, buf, len);
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+static void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
+{
+ unsigned count;
+ unsigned char *p;
+
+ /* Compute number of bytes mod 64 */
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ /* Set the first char of padding to 0x80. This is safe since there is
+ always at least one byte free */
+ p = ctx->in + count;
+ *p++ = 0x80;
+
+ /* Bytes of padding needed to make 64 bytes */
+ count = 64 - 1 - count;
+
+ /* Pad out to 56 mod 64 */
+ if (count < 8) {
+ /* Two lots of padding: Pad the first block to 64 bytes */
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+
+ /* Now fill the next block with 56 bytes */
+ memset(ctx->in, 0, 56);
+ } else {
+ /* Pad block to 56 bytes */
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ /* Append length in bits and transform */
+ ((FcChar32 *) ctx->in)[14] = ctx->bits[0];
+ ((FcChar32 *) ctx->in)[15] = ctx->bits[1];
+
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
+ memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
+}
+
+
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+static void MD5Transform(FcChar32 buf[4], FcChar32 in[16])
+{
+ register FcChar32 a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 15:41:43 +0000