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Add (and document) options for showing only listening or connected sockets.

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This commit is contained in:
Dag-Erling Smørgrav 2001-03-06 13:48:38 +00:00
parent 13d609b82e
commit a0581bbcc2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=73880
2 changed files with 39 additions and 11 deletions
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25
usr.bin/sockstat/sockstat.1
View File

@ -35,7 +35,7 @@
.Nd list open sockets
.Sh SYNOPSIS
.Nm
.Op Fl 46u
.Op Fl 46clu
.Sh DESCRIPTION
The
.Nm
@ -47,13 +47,30 @@ The following options are available:
Show AF_INET (IPv4) sockets.
.It Fl 6
Show AF_INET6 (IPv6) sockets.
.It Fl c
Show connected sockets.
.It Fl l
Show listening sockets.
.It Fl u
Show AF_LOCAL (Unix) sockets.
.El
.Pp
If no option is specified,
If neither
.Fl 4 ,
.Fl 6
or
.Fl u
is specified,
.Nm
will list sockets of all three types.
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:
@ -71,7 +88,7 @@ The transport protocol associated with the socket for Internet
sockets, or the type of socket (stream or datagram) for Unix sockets.
.It Li ADDRESS
(Unix sockets only)
For listening sockets, this is the filename of the socket.
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 "(none)" if the socket is neither bound nor connected.
.It Li LOCAL ADDRESS

25
usr.bin/sockstat/sockstat.pl
View File

@ -95,8 +95,10 @@ sub addr($) {
#
# Print information about Internet sockets
#
sub print_inet($) {
sub print_inet($$$) {
my $af = shift; # Address family
my $conn = shift || 0; # Show connected sockets
my $listen = shift || 0; # Show listen sockets
my $fsd; # Fstat data
my $nsd; # Netstat data
@ -106,6 +108,8 @@ sub print_inet($) {
foreach $fsd (@{$fstat{$af}}) {
next unless defined($fsd->[7]);
$nsd = $netstat{$fsd->[7]} || $unknown;
next if (!$conn && $nsd->[5] ne '*.*');
next if (!$listen && $nsd->[5] eq '*.*');
printf($inet_fmt, $fsd->[0], $fsd->[1], $fsd->[2],
substr($fsd->[3], 0, -1),
$nsd->[1], addr($nsd->[4]), addr($nsd->[5]));
@ -116,7 +120,9 @@ sub print_inet($) {
#
# Print information about Unix domain sockets
#
sub print_unix() {
sub print_unix($$) {
my $conn = shift || 0; # Show connected sockets
my $listen = shift || 0; # Show listen sockets
my %endpoint; # Mad PCB to process/fd
my $fsd; # Fstat data
@ -129,6 +135,8 @@ sub print_unix() {
printf($unix_fmt, "USER", "COMMAND", "PID", "FD", "PROTO", "ADDRESS");
foreach $fsd (@{$fstat{"local"}}) {
next unless defined($fsd->[6]);
next if (!$conn && defined($fsd->[8]));
next if (!$listen && !defined($fsd->[8]));
$nsd = $netstat{$fsd->[6]} || $unknown;
printf($unix_fmt, $fsd->[0], $fsd->[1], $fsd->[2],
substr($fsd->[3], 0, -1), $fsd->[5],
@ -141,14 +149,14 @@ sub print_unix() {
# Print usage message and exit
#
sub usage() {
print(STDERR "Usage: sockstat [-46u]\n");
print(STDERR "Usage: sockstat [-46clu]\n");
exit(1);
}
MAIN:{
my %opts; # Command-line options
getopts("46u", \%opts)
getopts("46clu", \%opts)
or usage();
gather();
@ -156,14 +164,17 @@ MAIN:{
if (!$opts{'4'} && !$opts{'6'} && !$opts{'u'}) {
$opts{'4'} = $opts{'6'} = $opts{'u'} = 1;
}
if (!$opts{'c'} && !$opts{'l'}) {
$opts{'c'} = $opts{'l'} = 1;
}
if ($opts{'4'}) {
print_inet("internet");
print_inet("internet", $opts{'c'}, $opts{'l'});
}
if ($opts{'6'}) {
print_inet("internet6");
print_inet("internet6", $opts{'c'}, $opts{'l'});
}
if ($opts{'u'}) {
print_unix();
print_unix($opts{'c'}, $opts{'l'});
}
exit(0);