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Do not display bogus entries for sockets in the TIME_WAIT or similar

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states that no longer have a corresponding file descriptor - until now,
sockstat would mostly randomly match null kern.file.*.xf_data fields
with the first mostly-closed socket.

This bugfix is a RELENG_5 candidate.

Approved by:	andre
This commit is contained in:
Peter Pentchev 2004-08-25 16:36:17 +00:00
parent be460b9467
commit 97c6143c95
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=134295
2 changed files with 18 additions and 1 deletions
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17
usr.bin/sockstat/sockstat.1
View File

@ -27,7 +27,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd August 7, 2001
.Dd August 25, 2004
.Dt SOCKSTAT 1
.Os
.Sh NAME
@ -121,6 +121,21 @@ if the endpoint could not be determined.
The address the foreign end of the socket is bound to (see
.Xr getpeername 2 ) .
.El
.Pp
Note that TCP sockets in the
.Dv AF_INET
or
.Dv AF_INET6
domains that are not in one of the
.Dv LISTEN ,
.Dv SYN_SENT ,
or
.Dv ESTABLISHED
states may not be shown by
.Nm ;
use
.Xr netstat 1
to examine them instead.
.Sh SEE ALSO
.Xr fstat 1 ,
.Xr netstat 1 ,

2
usr.bin/sockstat/sockstat.c
View File

@ -494,6 +494,8 @@ display(void)
"LOCAL ADDRESS", "FOREIGN ADDRESS");
setpassent(1);
for (xf = xfiles, n = 0; n < nxfiles; ++n, ++xf) {
if (xf->xf_data == NULL)
continue;
hash = (int)((uintptr_t)xf->xf_data % HASHSIZE);
for (s = sockhash[hash]; s != NULL; s = s->next)
if ((void *)s->socket == xf->xf_data)