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From: e07@nikhefh.nikhef.nl (Eric Wassenaar)
Newsgroups: comp.mail.sendmail
Subject: Re: Bad File Number
Message-ID: <1034@nikhefh.nikhef.nl>
Date: 4 Nov 90 23:18:16 GMT
References: <599@fsucs.UUCP>
Sender: e07@nikhef.nl (Eric Wassenaar)
Organization: Nikhef-H, Amsterdam (the Netherlands).
Lines: 32


levitz@fsucs.UUCP (Hilbert Levitz) writes:
> ...
> During the mail passing stage  of the  SMTP dialog  if connection
> breaks off, the  mail  goes  on  the  queue  with  the error  message
> "Bad File Number".  From this there is no automatic recovery.  The item
> ...

This bug has been solved since version 5.64.
If you have an older version, proceed as follows:

In the module smtpquit() in usersmtp.c you find the code
	(void) fclose(SmtpIn);
	(void) fclose(SmtpOut);
which actually closes the same (socket) fileno twice.
The second fclose sets errno to EBADF.

The solution is to change in makeconnection() in daemon.c
the line
	*infile = fdopen(s, "r");
to
	*infile = fdopen(dup(s), "r");

Another solution is to save errno before the first fclose,
and to restore it after the second fclose in smtpquit().

Eric Wassenaar
-- 
Organization: NIKHEF-H, National Institute for Nuclear and High-Energy Physics
Address: Kruislaan 409, P.O. Box 41882, 1009 DB Amsterdam, the Netherlands
Phone: +31 20 592 0412, Home: +31 20 909449, Telefax: +31 20 592 5155
Internet: e07@nikhef.nl