do it themselves. (Some of these programs actually depended on this
beyond compiling the definition of struct ifinfo!) Also fix up some
other #include messes while we're at it.
has been broken at least since 4.4Lite moved most of the #defines out of
<sys/ioctl.h>. This should be done better. Only a few headers are
searched.
Added some #includes so that ioctl.c compiles. The networking headers
have a maze of undocumented interdependencies and ioctl.c now actually
supports networking ioctls.
