freebsd/usr.bin/sockstat/sockstat.1

.\"-
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.\" $FreeBSD$
.\"
.Dd August 7, 2001
.Dt SOCKSTAT 1
.Os
.Sh NAME
.Nm sockstat
.Nd list open sockets
.Sh SYNOPSIS
.Nm
.Op Fl 46clu
.Op Fl p Ar ports
.Sh DESCRIPTION
The
.Nm
command lists open Internet or
.Ux
domain sockets.
.Pp
The following options are available:
.Bl -tag -width Fl
.It Fl 4
Show
.Dv AF_INET
(IPv4) sockets.
.It Fl 6
Show
.Dv AF_INET6
(IPv6) sockets.
.It Fl c
Show connected sockets.
.It Fl l
Show listening sockets.
.It Fl p Ar ports
Only show Internet sockets if either the local or foreign port number
is on the specified list.
The
.Ar ports
argument is a comma-separated list of port numbers and ranges
specified as first and last port separated by a dash.
.It Fl u
Show
.Dv AF_LOCAL
.Pq Ux
sockets.
.El
.Pp
If neither
.Fl 4 , 6
or
.Fl u
is specified,
.Nm
will list sockets in all three domains.
.Pp
If neither
.Fl c
or
.Fl l
is specified,
.Nm
will list both listening and connected sockets.
.Pp
The information listed for each
socket is:
.Bl -tag -width "FOREIGN ADDRESS"
.It Li USER
The user who owns the socket.
.It Li COMMAND
The command which holds the socket.
.It Li PID
The process ID of the command which holds the socket.
.It Li FD
The file descriptor number of the socket.
.It Li PROTO
The transport protocol associated with the socket for Internet
sockets, or the type of socket (stream or datagram) for
.Ux
sockets.
.It Li ADDRESS
.No ( Ux
sockets only)
For bound sockets, this is the filename of the socket.
For other sockets, it is the name, PID and file descriptor number of
the peer, or
.Dq Li "(none)"
if the socket is neither bound nor connected.
.It Li LOCAL ADDRESS
(Internet sockets only)
The address the local end of the socket is bound to (see
.Xr getsockname 2 ) .
.It Li FOREIGN ADDRESS
(Internet sockets only)
The address the foreign end of the socket is bound to (see
.Xr getpeername 2 ) .
.El
.Sh SEE ALSO
.Xr fstat 1 ,
.Xr netstat 1 ,
.Xr inet 4 ,
.Xr inet6 4
.Sh HISTORY
The
.Nm
command appeared in
.Fx 3.1 .
.Sh AUTHORS
The
.Nm
command and this manual page were written by
.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .