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Document the SUN_LEN macro.

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Obtained from:	 NetBSD
This commit is contained in:
mdodd 2005-04-12 23:24:40 +00:00
parent f9da7305b5
commit 29641e3ba1
1 changed files with 18 additions and 0 deletions
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18
share/man/man4/unix.4
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@ -83,6 +83,24 @@ removed when the socket is closed \(em
.Xr unlink 2
must be used to remove the file.
.Pp
The length of
.Ux Ns -domain
address, required by
.Xr bind 2
and
.Xr connect 2 ,
can be calculated by the macro
.Fn SUN_LEN
defined in
.In sys/un.h .
The
.Ar sun_path
field must be terminated by a NUL character to be used with
.Fn SUN_LEN ,
but the terminating NUL is
.Em not
part of the address.
.Pp
The
.Ux Ns -domain
protocol family does not support broadcast addressing or any form