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Date: Wed, 21 Aug 2013 18:34:29 +0200
From: Szabolcs Nagy <>
Subject: Re: SUN_LEN

* Rich Felker <> [2013-08-21 12:23:39 -0400]:
> > #if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
> > #define SUN_LEN(s) (sizeof *(s) - sizeof (s)->sun_path + strlen((s)->sun_path))
> > #endif
> This is insufficient, since sys/un.h does not expose strlen. We could
> either add a conditional declaration of strlen under this #if, or make
> an inline function for SUN_LEN that just does the strlen-like loop
> manually. I'm not sure what's best.

declare strlen

but i would not worry about this much, if you use such a
macro you are already outside the well-defined zone..
and musl does not need to be nice there

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