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mdoc(7) police: markup nits.

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This commit is contained in:
Ruslan Ermilov 2002-05-29 15:53:01 +00:00
parent 90b0150f1d
commit ab955c15c1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=97470
1 changed files with 17 additions and 10 deletions
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27
lib/libc/sys/listen.2
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@ -32,7 +32,7 @@
.\" From: @(#)listen.2 8.2 (Berkeley) 12/11/93
.\" $FreeBSD$
.\"
.Dd November 3, 1995
.Dd May 8, 2002
.Dt LISTEN 2
.Os
.Sh NAME
@ -73,14 +73,18 @@ receive an error with an indication of
or, in the case of TCP, the connection will be
silently dropped.
.Pp
Note that before FreeBSD 4.5 and the introduction of the syncache,
the
Note that before
.Fx 4.5
and the introduction of the syncache,
the
.Fa backlog
parameter also determined the length of the incomplete
connection queue, which held TCP sockets in the process
of completing TCP's 3-way handshake. These incomplete connections
of completing TCP's 3-way handshake.
These incomplete connections
are now held entirely in the syncache, which is unaffected by
queue lengths. Inflated
queue lengths.
Inflated
.Fa backlog
values to help handle denial
of service attacks are no longer necessary.
@ -100,14 +104,17 @@ is silently forced to
.Sh INTERACTION WITH ACCEPT FILTERS
When accept filtering is used on a socket, a second queue will
be used to hold sockets that have connected, but have not yet
met their accept filtering criteria. Once the criteria has been
met their accept filtering criteria.
Once the criteria has been
met, these sockets will be moved over into the completed connection
queue to be accept()ed. If this secondary queue is full and a
queue to be
.Xr accept 2 Ns ed .
If this secondary queue is full and a
new connection comes in, the oldest socket which has not yet met
its accept filter criteria will be terminated.
.Pp
This secondary queue, like the primary listen queue, is sized
according to the
according to the
.Fa backlog
parameter.
.Sh RETURN VALUES
@ -130,11 +137,11 @@ The socket is not of a type that supports the operation
.El
.Sh SEE ALSO
.Xr accept 2 ,
.Xr accept_filter 9 ,
.Xr connect 2 ,
.Xr socket 2 ,
.Xr sysctl 3 ,
.Xr sysctl 8
.Xr sysctl 8 ,
.Xr accept_filter 9
.Sh HISTORY
The
.Fn listen