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Include sys/types.h.
Include stdio.h unless we got NULL from somewhere else.

Only define isc_printf and isc_vprintf if HAVE_STDARG_H.

Include stdio.h if we can't get NULL from somewhere else.
Removed useless casting.

HAVE_STDARG_H.

Rewrite complex expressions so that vcc understands them.

is_sent_by and is_sent, which caused vcc to loop for a very long time.

  Write "{ 0, NULL }" instead of "((Foo){ 0, NULL})".
Cleanup.

Changed u_ to unsigned.

Include <sys/types.h>.

instead of _printf. (_printf clashed with _printf from libc on HPUX
machines).

the client.