sha512_process_bytes doesn't like odd sized buffers

[J. Scott Edwards]

Hello,

I have been using the md5.c, sha1.c, sha256.c functions in a program
of mine for some time.  I just started using the sha512.c functions in
the same program and I have discovered that it gets unhappy if I send
it buffers of 244 bytes, it works fine if I send it buffers of 256.  I
believe I have found the bug,  it is in the line:
"sha512_process_block (ctx->buffer, ctx->buflen & ~63, ctx);".  If I
change the 63 to 127 it seems to work for 244 bytes as well.  I have
included a patch below if that is useful:

--- sha512.c.~1.1.~     2008-03-11 12:26:09.000000000 -0600
+++ sha512.c    2008-03-15 02:46:55.000000000 -0600
@@ -352,7 +352,7 @@

       if (ctx->buflen > 128)
        {
-         sha512_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
+         sha512_process_block (ctx->buffer, ctx->buflen & ~127, ctx);

          ctx->buflen &= 127;
          /* The regions in the following copy operation cannot overlap.  */

Thanks!
  -Scott