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Subject: Re: Usage of sosend() and its context
To: John Baldwin <jhb@freebsd.org>, freebsd-hackers@freebsd.org
References: <575F20CF.1020103@kornberger.name>
 <2110371.3nz8SNp04Y@ralph.baldwin.cx>
From: Julian Kornberger <jk@kornberger.name>
Message-ID: <5762E6C6.7030401@kornberger.name>
Date: Thu, 16 Jun 2016 19:49:58 +0200
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On 16.06.2016 18:40, John Baldwin wrote:
> It's possible to ask sosend() to not block and fail with EWOULDBLOCK 
> instead by passing MSG_NOWAIT in flags. However, you might still block 
> on sblock(), so you may need to defer your work to a sleepable context 
> using something like a taskqueue. 

In this case I better build the IP packet manually and deliver it via 
ip_output/ip6_output.

Do you know where I can find a code snipped that returns the recipient 
IP address and recipient UDP port of a IP4/IPv6 packet stored in a mbuf?

-- 
Julian