X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmd5.c;h=511a029d1388063477fd410095bb8144f16a9be0;hb=8de557e31178699dd6e839850056f0653cdfba89;hp=87db8f956c6f8fa9d6722d81a1dbfee96d542217;hpb=dcbeca4acb90e463e4af5e12a44dfff2cd161fb9;p=gnulib.git

diff --git a/lib/md5.c b/lib/md5.c
index 87db8f956..511a029d1 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -1,8 +1,8 @@
-/* md5.c - Functions to compute MD5 message digest of files or memory blocks
+/* Functions to compute MD5 message digest of files or memory blocks.
    according to the definition of MD5 in RFC 1321 from April 1992.
-   Copyright (C) 1995, 1996, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
-   NOTE: The canonical source of this file is maintained with the GNU C
-   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+   Copyright (C) 1995,1996,1997,1999,2000,2001,2005
+	Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
@@ -27,7 +27,9 @@
 #include "md5.h"
 
 #include <stddef.h>
+#include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
 
 #if USE_UNLOCKED_IO
 # include "unlocked-io.h"
@@ -88,10 +90,10 @@ md5_init_ctx (struct md5_ctx *ctx)
 void *
 md5_read_ctx (const struct md5_ctx *ctx, void *resbuf)
 {
-  ((md5_uint32 *) resbuf)[0] = SWAP (ctx->A);
-  ((md5_uint32 *) resbuf)[1] = SWAP (ctx->B);
-  ((md5_uint32 *) resbuf)[2] = SWAP (ctx->C);
-  ((md5_uint32 *) resbuf)[3] = SWAP (ctx->D);
+  ((uint32_t *) resbuf)[0] = SWAP (ctx->A);
+  ((uint32_t *) resbuf)[1] = SWAP (ctx->B);
+  ((uint32_t *) resbuf)[2] = SWAP (ctx->C);
+  ((uint32_t *) resbuf)[3] = SWAP (ctx->D);
 
   return resbuf;
 }
@@ -105,7 +107,7 @@ void *
 md5_finish_ctx (struct md5_ctx *ctx, void *resbuf)
 {
   /* Take yet unprocessed bytes into account.  */
-  md5_uint32 bytes = ctx->buflen;
+  uint32_t bytes = ctx->buflen;
   size_t pad;
 
   /* Now count remaining bytes.  */
@@ -117,8 +119,8 @@ md5_finish_ctx (struct md5_ctx *ctx, void *resbuf)
   memcpy (&ctx->buffer[bytes], fillbuf, pad);
 
   /* Put the 64-bit file length in *bits* at the end of the buffer.  */
-  *(md5_uint32 *) &ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
-  *(md5_uint32 *) &ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
+  *(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));
 
   /* Process last bytes.  */
@@ -244,8 +246,14 @@ md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx)
   if (len >= 64)
     {
 #if !_STRING_ARCH_unaligned
-# define alignof(type) offsetof (struct { char c; type x; }, x)
-# define UNALIGNED_P(p) (((size_t) p) % alignof (md5_uint32) != 0)
+/* To check alignment gcc has an appropriate operator.  Other
+   compilers don't.  */
+# if __GNUC__ >= 2
+#  define UNALIGNED_P(p) (((uintptr_t) p) % __alignof__ (uint32_t) != 0)
+# else
+#  define alignof(type) offsetof (struct { char c; type x; }, x)
+#  define UNALIGNED_P(p) (((size_t) p) % alignof (uint32_t) != 0)
+# endif
       if (UNALIGNED_P (buffer))
 	while (len > 64)
 	  {
@@ -295,14 +303,14 @@ md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx)
 void
 md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx)
 {
-  md5_uint32 correct_words[16];
-  const md5_uint32 *words = buffer;
-  size_t nwords = len / sizeof (md5_uint32);
-  const md5_uint32 *endp = words + nwords;
-  md5_uint32 A = ctx->A;
-  md5_uint32 B = ctx->B;
-  md5_uint32 C = ctx->C;
-  md5_uint32 D = ctx->D;
+  uint32_t correct_words[16];
+  const uint32_t *words = buffer;
+  size_t nwords = len / sizeof (uint32_t);
+  const uint32_t *endp = words + nwords;
+  uint32_t A = ctx->A;
+  uint32_t B = ctx->B;
+  uint32_t C = ctx->C;
+  uint32_t D = ctx->D;
 
   /* First increment the byte count.  RFC 1321 specifies the possible
      length of the file up to 2^64 bits.  Here we only compute the
@@ -315,11 +323,11 @@ md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx)
      the loop.  */
   while (words < endp)
     {
-      md5_uint32 *cwp = correct_words;
-      md5_uint32 A_save = A;
-      md5_uint32 B_save = B;
-      md5_uint32 C_save = C;
-      md5_uint32 D_save = D;
+      uint32_t *cwp = correct_words;
+      uint32_t A_save = A;
+      uint32_t B_save = B;
+      uint32_t C_save = C;
+      uint32_t D_save = D;
 
       /* First round: using the given function, the context and a constant
 	 the next context is computed.  Because the algorithms processing
@@ -375,7 +383,7 @@ md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx)
 	 argument specifying the function to use.  */
 #undef OP
 #define OP(f, a, b, c, d, k, s, T)					\
-      do								\
+      do 								\
 	{								\
 	  a += f (b, c, d) + correct_words[k] + T;			\
 	  CYCLIC (a, s);						\