From owner-freebsd-questions@FreeBSD.ORG  Wed Jul 11 15:19:14 2012
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Message-ID: <20120711181905.38805t0j3nik358o@webmail.raad.tartu.ee>
Date: Wed, 11 Jul 2012 18:19:05 +0300
From: Toomas Aas <toomas.aas@raad.tartu.ee>
To: freebsd-questions@freebsd.org
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Subject: Re: curl error: SSL_write() returned SYSCALL, errno = 32
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Hello again!

> Recently I upgraded a lot of ports on one of our FreeBSD 7.4  
> servers. Among others I upgraded curl from 7.19.6 to 7.24.0, and php  
> from 5.2.11 to 5.3.13. PHP's curl extension is also installed.
>
> After the upgrade, an application which tries to POST some data over  
> https using PHP's curl_exec() function, is having trouble.  
> curl_error() returns the following after the POST request:
>
> SSL_write() returned SYSCALL, errno = 32

Some modifications in PHP code made everything happy again.

1. Removed the Expect: 100-continue HTTP header from requests sent by  
curl, by adding empty Expect: header
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect: '));

2. Made sure CURLOPT_POSTFIELDS is an url-encoded query string instead  
of being a plain PHP array:

curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($myarray));

-- 
Toomas Aas