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Date: Sat, 26 Aug 2000 04:31:00 -0700
From: Alfred Perlstein <bright@wintelcom.net>
To: Ed Alley <alley1@llnl.gov>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: sockaddr differences
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References: <200008260101.SAA02730@jordan.llnl.gov>
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* Ed Alley <alley1@llnl.gov> [000825 18:01] wrote:

[FreeBSD has the sun_len feild in sockaddr_un...]

> 	First Question:
> 		Why is FreeBSD different?

Because as usual, we do it right. :)

> 
> 	Second Question:
> 		Does anyone know of a simple way that I can
> 		program around this without putting in a
> 		lot of ifdefs in my programs?

sure stick this in your application's header somewhere:

#ifdef __BSD__
#define sun_len_hack(sockaddr, len) \
	do { sockaddr->sun_len = len; } while(0)
else /* !__BSD__ */
#define sun_len_hack(sockaddr, sun_len)
#enfif /* __BSD__ */

Then use sun_len_hack(&sockaddr_un, len) in your code, on non-BSD
it should be optimized out.

-- 
-Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org]
"I have the heart of a child; I keep it in a jar on my desk."


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