For future portability, add functions to access both littleendian and
bigendian numbers, and to perform unaligned memory references.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Resolved Conflicts:
	com32/include/netinet/in.h

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

The standard definition for inet_ntoa() is to take struct in_addr, and
not doing that causes a conflict on the lwip branch.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

This is a logical generalization, follows the precedent set
by glibc and it will allow us to avoid problems with
lwips definition of the network byte swap functions.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

Adding inet_ntoa() as it could be useful to print pxe_boot_t structure

We need casts not just on input but on output, in order to make sure
only the correct bits are visible.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

All the byte-swapping functions are true constfuncs...

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

For the macro versions of hton/ntoh, use casts everywhere.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Tweak the hton/ntoh macros so that they are true constants if the
input is a constant expression; this makes them usable in the
preprocessor.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Conflicts:
	com32/include/netinet/in.h
	com32/include/sys/cpu.h
	dos/argv.c
	dos/malloc.c
	dos/syslinux.c
	extlinux/main.c
	libinstaller/setadv.c
	libinstaller/syslinux.h
	libinstaller/syslxint.h
	libinstaller/syslxmod.c
	linux/syslinux.c
	mtools/syslinux.c
	win32/syslinux.c

Signed-off-by: H. Peter Anvin <hpa@zytor.com>