Xref: utzoo comp.mail.sendmail:598 comp.unix.aux:729
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!lll-lcc!pyramid!nessus!pst
From: pst@nessus.UUCP (Paul Traina)
Newsgroups: comp.mail.sendmail,comp.unix.aux
Subject: Re: sendmail 5.61 dumps core writing to SmtpOut (fix)
Summary: fixed it...
Keywords: sendmail, aux, macintosh, system5
Message-ID: <229@nessus.UUCP>
Date: 4 Mar 89 05:37:26 GMT
References: <228@nessus.UUCP>
Followup-To: poster
Distribution: usa
Organization: Shockwave Engineering, Santa Barbara, California
Lines: 30

Thanks to the people that responded, especially Steve Alexander @ Lachman.

There are two ways to fix it, I'll present Steve's, since it's more elgant
than mine.  In the routine makeconnection() in daemon.c, the socket is
open & connected, then two fdopen's are made on the same socket.

System V has a bug in stdio, so this won't work right.  The two solutions
are either (a) open it once for reads & writes, and then do rewinds
between reads & writes (ugly), or Steve's solution, just dup() the socket.
(I didn't think that would work, so I never tried it).

Old code:
	*outfile = fdopen(s, "w");
	*infile = fdopen(s, "r");

New code:
	*outfile = fdopen(dup(s), "w");
	*infile = fdopen(s, "r");

I've tried it out, and it seems to run like a champ (so far :-) ).

Hope this helps someone else.  The rest of the 5.61 conversion is
trivial.  If anyone wants diffs off the 5.61 distribution for System5
w/Berkeley networking (at least Unisoft's),  drop me a note.

Paul
-- 
== pst%nessus@hub.ucsb.edu  ...pyramid!ucsbcsl!nessus!pst  pst@ai.ai.mit.edu ==

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