You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
/* Initialize structure containing state of computation.
(RFC 1321, 3.3: Step 3) */
void
-md5_init_ctx (ctx)
- struct md5_ctx *ctx;
+md5_init_ctx (struct md5_ctx *ctx)
{
ctx->A = (md5_uint32) 0x67452301;
ctx->B = (md5_uint32) 0xefcdab89;
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
void *
-md5_read_ctx (ctx, resbuf)
- const struct md5_ctx *ctx;
- void *resbuf;
+md5_read_ctx (const struct md5_ctx *ctx, void *resbuf)
{
((md5_uint32 *) resbuf)[0] = SWAP (ctx->A);
((md5_uint32 *) resbuf)[1] = SWAP (ctx->B);
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
void *
-md5_finish_ctx (ctx, resbuf)
- struct md5_ctx *ctx;
- void *resbuf;
+md5_finish_ctx (struct md5_ctx *ctx, void *resbuf)
{
/* Take yet unprocessed bytes into account. */
md5_uint32 bytes = ctx->buflen;
resulting message digest number will be written into the 16 bytes
beginning at RESBLOCK. */
int
-md5_stream (stream, resblock)
- FILE *stream;
- void *resblock;
+md5_stream (FILE *stream, void *resblock)
{
/* Important: BLOCKSIZE must be a multiple of 64. */
#define BLOCKSIZE 4096
output yields to the wanted ASCII representation of the message
digest. */
void *
-md5_buffer (buffer, len, resblock)
- const char *buffer;
- size_t len;
- void *resblock;
+md5_buffer (const char *buffer, size_t len, void *resblock)
{
struct md5_ctx ctx;
void
-md5_process_bytes (buffer, len, ctx)
- const void *buffer;
- size_t len;
- struct md5_ctx *ctx;
+md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx)
{
/* When we already have some bits in our internal buffer concatenate
both inputs first. */
ctx->buflen = (left_over + add) & 63;
}
- buffer = (const char *) buffer + add;
+ buffer = (const void *) ((const char *) buffer + add);
len -= add;
}
/* Process available complete blocks. */
if (len > 64)
{
+#if !_STRING_ARCH_unaligned
+/* To check alignment gcc has an appropriate operator. Other
+ compilers don't. */
+# if __GNUC__ >= 2
+# define UNALIGNED_P(p) (((md5_uintptr) p) % __alignof__ (md5_uint32) != 0)
+# else
+# define UNALIGNED_P(p) (((md5_uintptr) p) % sizeof (md5_uint32) != 0)
+# endif
+ if (UNALIGNED_P (buffer))
+ while (len > 64)
+ {
+ memcpy (ctx->buffer, buffer, 64);
+ md5_process_block (ctx->buffer, 64, ctx);
+ buffer = (const char *) buffer + 64;
+ len -= 64;
+ }
+ else
+#endif
md5_process_block (buffer, len & ~63, ctx);
- buffer = (const char *) buffer + (len & ~63);
+ buffer = (const void *) ((const char *) buffer + (len & ~63));
len &= 63;
}
It is assumed that LEN % 64 == 0. */
void
-md5_process_block (buffer, len, ctx)
- const void *buffer;
- size_t len;
- struct md5_ctx *ctx;
+md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx)
{
md5_uint32 correct_words[16];
- const md5_uint32 *words = buffer;
+ const md5_uint32 *words = (const md5_uint32 *) buffer;
size_t nwords = len / sizeof (md5_uint32);
const md5_uint32 *endp = words + nwords;
md5_uint32 A = ctx->A;
in CORRECT_WORDS. Redefine the macro to take an additional first
argument specifying the function to use. */
#undef OP
-#define OP(f, a, b, c, d, k, s, T) \
+#define OP(a, b, c, d, k, s, T) \
do \
{ \
- a += f (b, c, d) + correct_words[k] + T; \
+ a += FX (b, c, d) + correct_words[k] + T; \
CYCLIC (a, s); \
a += b; \
} \
while (0)
+#define FX(b, c, d) FG (b, c, d)
+
/* Round 2. */
- OP (FG, A, B, C, D, 1, 5, (md5_uint32) 0xf61e2562);
- OP (FG, D, A, B, C, 6, 9, (md5_uint32) 0xc040b340);
- OP (FG, C, D, A, B, 11, 14, (md5_uint32) 0x265e5a51);
- OP (FG, B, C, D, A, 0, 20, (md5_uint32) 0xe9b6c7aa);
- OP (FG, A, B, C, D, 5, 5, (md5_uint32) 0xd62f105d);
- OP (FG, D, A, B, C, 10, 9, (md5_uint32) 0x02441453);
- OP (FG, C, D, A, B, 15, 14, (md5_uint32) 0xd8a1e681);
- OP (FG, B, C, D, A, 4, 20, (md5_uint32) 0xe7d3fbc8);
- OP (FG, A, B, C, D, 9, 5, (md5_uint32) 0x21e1cde6);
- OP (FG, D, A, B, C, 14, 9, (md5_uint32) 0xc33707d6);
- OP (FG, C, D, A, B, 3, 14, (md5_uint32) 0xf4d50d87);
- OP (FG, B, C, D, A, 8, 20, (md5_uint32) 0x455a14ed);
- OP (FG, A, B, C, D, 13, 5, (md5_uint32) 0xa9e3e905);
- OP (FG, D, A, B, C, 2, 9, (md5_uint32) 0xfcefa3f8);
- OP (FG, C, D, A, B, 7, 14, (md5_uint32) 0x676f02d9);
- OP (FG, B, C, D, A, 12, 20, (md5_uint32) 0x8d2a4c8a);
+ OP (A, B, C, D, 1, 5, (md5_uint32) 0xf61e2562);
+ OP (D, A, B, C, 6, 9, (md5_uint32) 0xc040b340);
+ OP (C, D, A, B, 11, 14, (md5_uint32) 0x265e5a51);
+ OP (B, C, D, A, 0, 20, (md5_uint32) 0xe9b6c7aa);
+ OP (A, B, C, D, 5, 5, (md5_uint32) 0xd62f105d);
+ OP (D, A, B, C, 10, 9, (md5_uint32) 0x02441453);
+ OP (C, D, A, B, 15, 14, (md5_uint32) 0xd8a1e681);
+ OP (B, C, D, A, 4, 20, (md5_uint32) 0xe7d3fbc8);
+ OP (A, B, C, D, 9, 5, (md5_uint32) 0x21e1cde6);
+ OP (D, A, B, C, 14, 9, (md5_uint32) 0xc33707d6);
+ OP (C, D, A, B, 3, 14, (md5_uint32) 0xf4d50d87);
+ OP (B, C, D, A, 8, 20, (md5_uint32) 0x455a14ed);
+ OP (A, B, C, D, 13, 5, (md5_uint32) 0xa9e3e905);
+ OP (D, A, B, C, 2, 9, (md5_uint32) 0xfcefa3f8);
+ OP (C, D, A, B, 7, 14, (md5_uint32) 0x676f02d9);
+ OP (B, C, D, A, 12, 20, (md5_uint32) 0x8d2a4c8a);
+
+#undef FX
+#define FX(b, c, d) FH (b, c, d)
/* Round 3. */
- OP (FH, A, B, C, D, 5, 4, (md5_uint32) 0xfffa3942);
- OP (FH, D, A, B, C, 8, 11, (md5_uint32) 0x8771f681);
- OP (FH, C, D, A, B, 11, 16, (md5_uint32) 0x6d9d6122);
- OP (FH, B, C, D, A, 14, 23, (md5_uint32) 0xfde5380c);
- OP (FH, A, B, C, D, 1, 4, (md5_uint32) 0xa4beea44);
- OP (FH, D, A, B, C, 4, 11, (md5_uint32) 0x4bdecfa9);
- OP (FH, C, D, A, B, 7, 16, (md5_uint32) 0xf6bb4b60);
- OP (FH, B, C, D, A, 10, 23, (md5_uint32) 0xbebfbc70);
- OP (FH, A, B, C, D, 13, 4, (md5_uint32) 0x289b7ec6);
- OP (FH, D, A, B, C, 0, 11, (md5_uint32) 0xeaa127fa);
- OP (FH, C, D, A, B, 3, 16, (md5_uint32) 0xd4ef3085);
- OP (FH, B, C, D, A, 6, 23, (md5_uint32) 0x04881d05);
- OP (FH, A, B, C, D, 9, 4, (md5_uint32) 0xd9d4d039);
- OP (FH, D, A, B, C, 12, 11, (md5_uint32) 0xe6db99e5);
- OP (FH, C, D, A, B, 15, 16, (md5_uint32) 0x1fa27cf8);
- OP (FH, B, C, D, A, 2, 23, (md5_uint32) 0xc4ac5665);
+ OP (A, B, C, D, 5, 4, (md5_uint32) 0xfffa3942);
+ OP (D, A, B, C, 8, 11, (md5_uint32) 0x8771f681);
+ OP (C, D, A, B, 11, 16, (md5_uint32) 0x6d9d6122);
+ OP (B, C, D, A, 14, 23, (md5_uint32) 0xfde5380c);
+ OP (A, B, C, D, 1, 4, (md5_uint32) 0xa4beea44);
+ OP (D, A, B, C, 4, 11, (md5_uint32) 0x4bdecfa9);
+ OP (C, D, A, B, 7, 16, (md5_uint32) 0xf6bb4b60);
+ OP (B, C, D, A, 10, 23, (md5_uint32) 0xbebfbc70);
+ OP (A, B, C, D, 13, 4, (md5_uint32) 0x289b7ec6);
+ OP (D, A, B, C, 0, 11, (md5_uint32) 0xeaa127fa);
+ OP (C, D, A, B, 3, 16, (md5_uint32) 0xd4ef3085);
+ OP (B, C, D, A, 6, 23, (md5_uint32) 0x04881d05);
+ OP (A, B, C, D, 9, 4, (md5_uint32) 0xd9d4d039);
+ OP (D, A, B, C, 12, 11, (md5_uint32) 0xe6db99e5);
+ OP (C, D, A, B, 15, 16, (md5_uint32) 0x1fa27cf8);
+ OP (B, C, D, A, 2, 23, (md5_uint32) 0xc4ac5665);
+
+#undef FX
+#define FX(b, c, d) FI (b, c, d)
/* Round 4. */
- OP (FI, A, B, C, D, 0, 6, (md5_uint32) 0xf4292244);
- OP (FI, D, A, B, C, 7, 10, (md5_uint32) 0x432aff97);
- OP (FI, C, D, A, B, 14, 15, (md5_uint32) 0xab9423a7);
- OP (FI, B, C, D, A, 5, 21, (md5_uint32) 0xfc93a039);
- OP (FI, A, B, C, D, 12, 6, (md5_uint32) 0x655b59c3);
- OP (FI, D, A, B, C, 3, 10, (md5_uint32) 0x8f0ccc92);
- OP (FI, C, D, A, B, 10, 15, (md5_uint32) 0xffeff47d);
- OP (FI, B, C, D, A, 1, 21, (md5_uint32) 0x85845dd1);
- OP (FI, A, B, C, D, 8, 6, (md5_uint32) 0x6fa87e4f);
- OP (FI, D, A, B, C, 15, 10, (md5_uint32) 0xfe2ce6e0);
- OP (FI, C, D, A, B, 6, 15, (md5_uint32) 0xa3014314);
- OP (FI, B, C, D, A, 13, 21, (md5_uint32) 0x4e0811a1);
- OP (FI, A, B, C, D, 4, 6, (md5_uint32) 0xf7537e82);
- OP (FI, D, A, B, C, 11, 10, (md5_uint32) 0xbd3af235);
- OP (FI, C, D, A, B, 2, 15, (md5_uint32) 0x2ad7d2bb);
- OP (FI, B, C, D, A, 9, 21, (md5_uint32) 0xeb86d391);
+ OP (A, B, C, D, 0, 6, (md5_uint32) 0xf4292244);
+ OP (D, A, B, C, 7, 10, (md5_uint32) 0x432aff97);
+ OP (C, D, A, B, 14, 15, (md5_uint32) 0xab9423a7);
+ OP (B, C, D, A, 5, 21, (md5_uint32) 0xfc93a039);
+ OP (A, B, C, D, 12, 6, (md5_uint32) 0x655b59c3);
+ OP (D, A, B, C, 3, 10, (md5_uint32) 0x8f0ccc92);
+ OP (C, D, A, B, 10, 15, (md5_uint32) 0xffeff47d);
+ OP (B, C, D, A, 1, 21, (md5_uint32) 0x85845dd1);
+ OP (A, B, C, D, 8, 6, (md5_uint32) 0x6fa87e4f);
+ OP (D, A, B, C, 15, 10, (md5_uint32) 0xfe2ce6e0);
+ OP (C, D, A, B, 6, 15, (md5_uint32) 0xa3014314);
+ OP (B, C, D, A, 13, 21, (md5_uint32) 0x4e0811a1);
+ OP (A, B, C, D, 4, 6, (md5_uint32) 0xf7537e82);
+ OP (D, A, B, C, 11, 10, (md5_uint32) 0xbd3af235);
+ OP (C, D, A, B, 2, 15, (md5_uint32) 0x2ad7d2bb);
+ OP (B, C, D, A, 9, 21, (md5_uint32) 0xeb86d391);
/* Add the starting values of the context. */
A += A_save;
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