ok guenther millert kettenis

ok pedro@, millert@

It was defined before and there is no need to for this knob...

I missed earlier.

The Pad function does padding like in Final but does not finish processing.
The FileChunk function creates a digest from a portion of a file.
Also made the length parameters consistent (and size_t).

functions can take a NULL buf pointer.  They will malloc memory as
needed in this case.

changes Niklas made to the md5 code long ago.  OK hshoexer@

previously lived in foohl.c.  The foohl.c files are now generated
via sed, though perhaps cpp could be used in the future.
Use u_int8_t instead of unsigned char for the buffers struct fooContext.
Add constants for buffer lengths and use them in function prototypes
and the man pages.
This is basically cosmetic surgery; there should be no functional changes.
OK deraadt@

u_char -> unsigned char
u_short -> unsigned short
u_long -> unsigned long
u_int -> unsigned int
okay millert@

__minbytes__ checks where appropriate.  tested by itojun@
fixes PR 3505 from Janjaap van Velthooven

ok deraadt@

You must have an up-to-date gcc for this!
deraadt@ ok

o Add __BEGIN_DECLS/__END_DECLS to include files
o Safe macros
o Remove useless variable assignment in the End function of *hl.c
o Some minor KNF, needs more
From Dan Weeks

are more consistent with md4/md5 functions.