Arithmetic Error on Sun Solaris GCC compiled program

From: Verne Arase (VerneA_at_pobox.com)
Date: 08/29/04 

Date: Sat, 28 Aug 2004 18:11:29 -0500

Hello all,

   Last year I was an MVS (OS/390) Systems Programmer - this year I'm an
admin for Sun Solaris, so please be gentle :-).

   I've written a ISC dhcpd sanity checker/data extractor/static host
verifier in C to run as a standard tool on MacOS X 10.3.5/GCC 3.3 under
Xcode. The sanity checker (chkdhcp) reads the dhcpd.conf and dhcpd.leases
files and extracts all the relavant info including subnets, host list, and
static host list and outputs them to a flat file. A host checker (pinghosts)
then attempts to post-process the static hosts file and check to see that
they're really there.

   Everything runs fine on MacOS X 10.3.5, but when I attempt to port the
code to a Solaris 5.8 system with GCC 2.95.2 and run, I get:

chkdhcp v1.0a1 begin execution

Processing begun on file "/etc/dhcpd.conf"

Arithmetic Exception(coredump)

... which isn't terribly helpful.

   Everything compiles cleanly, I'm running root so there are no permission
issues. I've used this developement schema to develop code on MacOS X for
deployment on AIX 5, and it worked nicely - though I guess AIX is also
PPC-based.

   Really, the only things I can think of that I'm counting on arithmetically
is that I've got an unsigned long int at least 32 bits in length (capable of
holding an IP address).

   Has anyone seen anything like this, and can they point me in a good
direction - like what in general they've seen cause problems like this or
what I should be looking at?

   Monday I'll be trying it on a Solaris 9 Sunblade I have under my desk
(with the latest GCC), but I was hoping to get it running on the current
production system - and that's all I can access from here (home).

   Thanks in advance for any response.

-- Verne

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