Solve the Amiga build warning by including `netinet/in.h`.
`krb5.c` and `socketpair.c` are using `htonl()` too. This header is
already included in those sources.
Regression from 1e9a538e05
Reviewed-by: Daniel Stenberg
Closes#9787
For both IPv4 and IPv6 addresses. Now also checks IPv6 addresses "correctly"
and not with string comparisons.
Split out the noproxy checks and functionality into noproxy.c
Added unit test 1614 to verify checking functions.
Reported-by: Mathieu Carbonneaux
Fixes#9773Fixes#5745Closes#9775
