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Date:      Mon, 15 Jan 1996 21:22:08 +0100 (MET)
From:      Åge Røbekk <aagero@aage.aage.priv.no>
To:        freebsd-bugs@freebsd.org
Subject:   host segfaults on empty host statement
Message-ID:  <199601152022.VAA06249@birk04.studby.uio.no>

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$ /usr/bin/host -t hinfo
Segmentation fault (core dumped)

The problem is that the argument after hinfo is not checked for a NULL
pointer. In line 220 of host.c, strcmp(v[1], ".") fails due to
dereferencing the NULL pointer v[1]. v[1] is the argument that follows
the type query. I also checked host.c in 4.9.3-REL and the problem is
still present there.

-aage



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