kern/125940: connect(2) returning -1, errno unset
Garrett Cooper
yanefbsd at gmail.com
Fri Jul 25 04:40:07 UTC 2008
The following reply was made to PR kern/125940; it has been noted by GNATS.
From: "Garrett Cooper" <yanefbsd at gmail.com>
To: "Kian Mohageri" <kian.mohageri at gmail.com>
Cc: FreeBSD-gnats-submit at freebsd.org
Subject: Re: kern/125940: connect(2) returning -1, errno unset
Date: Thu, 24 Jul 2008 21:32:55 -0700
On Thu, Jul 24, 2008 at 2:03 PM, Kian Mohageri <kian.mohageri at gmail.com> wrote:
>
>>Description:
>
> Using FreeTDS 0.82 I ran into this issue. For some reason, the connection is failing (not sure why still). connect(2) is returning -1 to indicate failure, but errno is unset.
>
> The relevant code from freetds-0.82 follows:
>
> retval = connect(tds->s, (struct sockaddr *) &sin, sizeof(sin));
> if (retval == 0) {
> tdsdump_log(TDS_DBG_INFO2, "connection established\n");
> } else {
> tdsdump_log(TDS_DBG_ERROR, "tds_open_socket: connect(2) returned \"%s\"\n", strerror(sock_errno));
>
> Debugging this further shows that retval is -1, but sock_errno (errno) is set to 0. Setting it to an arbitrary value prior to connect(2) reveals that it isn't touched at all after the failed connect(2).
>
>>How-To-Repeat:
>
> Not entirely sure how to repeat it in a more generic environment. This specific case is happening with php5-pdo_dblib, freetds-0.64 or freetds-0.82, and PHP via the command line.
Could you please provide these steps for us?
Thanks,
-Garrett
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