New module, file-set.

[gnulib.git] / lib / md4.c

diff --git a/lib/md4.c b/lib/md4.c
index 571ad16..789cce0 100644 (file)
--- a/lib/md4.c
+++ b/lib/md4.c
@@ -1,6 +1,6 @@
 /* Functions to compute MD4 message digest of files or memory blocks.
    according to the definition of MD4 in RFC 1320 from April 1992.
-   Copyright (C) 1995,1996,1997,1999,2000,2001,2002,2003,2005
+   Copyright (C) 1995,1996,1997,1999,2000,2001,2002,2003,2005,2006
    Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
@@ -20,9 +20,7 @@
 /* Adapted by Simon Josefsson from gnulib md5.? and Libgcrypt
    cipher/md4.c . */
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #include "md4.h"
 
@@ -100,12 +98,12 @@ md4_finish_ctx (struct md4_ctx *ctx, void *resbuf)
     ++ctx->total[1];
 
   pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
-  memcpy (&ctx->buffer[bytes], fillbuf, pad);
+  memcpy (&((char*)ctx->buffer)[bytes], fillbuf, pad);
 
   /* Put the 64-bit file length in *bits* at the end of the buffer.  */
-  *(uint32_t *) & ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
-  *(uint32_t *) & ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
-                                                      (ctx->total[0] >> 29));
+  ctx->buffer[(bytes + pad) / 4] = SWAP (ctx->total[0] << 3);
+  ctx->buffer[(bytes + pad) / 4 + 1] = SWAP ((ctx->total[1] << 3) |
+                                            (ctx->total[0] >> 29));
 
   /* Process last bytes.  */
   md4_process_block (ctx->buffer, bytes + pad + 8, ctx);
@@ -179,7 +177,7 @@ process_partial_block:;
   return 0;
 }
 
-/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  The
+/* Compute MD4 message digest for LEN bytes beginning at BUFFER.  The
    result is always in little endian byte order, so that a byte-wise
    output yields to the wanted ASCII representation of the message
    digest.  */
@@ -208,7 +206,7 @@ md4_process_bytes (const void *buffer, size_t len, struct md4_ctx *ctx)
       size_t left_over = ctx->buflen;
       size_t add = 128 - left_over > len ? len : 128 - left_over;
 
-      memcpy (&ctx->buffer[left_over], buffer, add);
+      memcpy (&((char*)ctx->buffer)[left_over], buffer, add);
       ctx->buflen += add;
 
       if (ctx->buflen > 64)
@@ -217,7 +215,7 @@ md4_process_bytes (const void *buffer, size_t len, struct md4_ctx *ctx)
 
          ctx->buflen &= 63;
          /* The regions in the following copy operation cannot overlap.  */
-         memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
+         memcpy (ctx->buffer, &((char*)ctx->buffer)[(left_over + add) & ~63],
                  ctx->buflen);
        }
 
@@ -258,13 +256,13 @@ md4_process_bytes (const void *buffer, size_t len, struct md4_ctx *ctx)
     {
       size_t left_over = ctx->buflen;
 
-      memcpy (&ctx->buffer[left_over], buffer, len);
+      memcpy (&((char*)ctx->buffer)[left_over], buffer, len);
       left_over += len;
       if (left_over >= 64)
        {
          md4_process_block (ctx->buffer, 64, ctx);
          left_over -= 64;
-         memcpy (ctx->buffer, &ctx->buffer[64], left_over);
+         memcpy (ctx->buffer, &ctx->buffer[16], left_over);
        }
       ctx->buflen = left_over;
     }
@@ -273,14 +271,14 @@ md4_process_bytes (const void *buffer, size_t len, struct md4_ctx *ctx)
 /* --- Code below is the primary difference between md5.c and md4.c --- */
 
 /* MD4 round constants */
-#define K1 0x5a827999L
-#define K2 0x6ed9eba1L
+#define K1 0x5a827999
+#define K2 0x6ed9eba1
 
 /* Round functions.  */
 #define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
 #define G(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
 #define H(x, y, z) ((x) ^ (y) ^ (z))
-#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+#define rol(x, n) (((x) << (n)) | ((uint32_t) (x) >> (32 - (n))))
 #define R1(a,b,c,d,k,s) a=rol(a+F(b,c,d)+x[k],s);
 #define R2(a,b,c,d,k,s) a=rol(a+G(b,c,d)+x[k]+K1,s);
 #define R3(a,b,c,d,k,s) a=rol(a+H(b,c,d)+x[k]+K2,s);
@@ -311,7 +309,6 @@ md4_process_block (const void *buffer, size_t len, struct md4_ctx *ctx)
      the loop.  */
   while (words < endp)
     {
-      uint32_t tm;
       int t;
       for (t = 0; t < 16; t++)
        {