[ipv4] Redefine IP address constants to avoid unnecessary byte swapping
Redefine various IPv4 address constants and testing macros to avoid
unnecessary byte swapping at runtime, and slightly rename the macros
to prevent code from accidentally using the old definitions.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The implementation of inet_aton() has an unknown provenance. Rewrite
this code to avoid potential licensing uncertainty.
Also move the code from core/misc.c to its logical home in net/ipv4.c,
and add a few extra test cases.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown