Re: bin/48005 (tcpdump: option -C broken)

["David H. Gutteridge" <dhgutteridge%sympatico.ca@localhost>]

The following reply was made to PR bin/48005; it has been noted by GNATS.

From: "David H. Gutteridge" <dhgutteridge%sympatico.ca@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: bin/48005 (tcpdump: option -C broken)
Date: Thu, 02 Mar 2017 18:19:45 -0500

 My suggested amendments to the tcpdump man page:
 
 --- tcpdump.1.in~
 +++ tcpdump.1.in
 @@ -20,7 +20,7 @@
 Â .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES
 OF
 Â .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 Â .\"
 -.TH TCPDUMP 8Â Â "17 September 2015"
 +.TH TCPDUMP 8Â Â "2 March 2017"
 Â .SH NAME
 Â tcpdump \- dump traffic on a network
 Â .SH SYNOPSIS
 @@ -254,6 +254,11 @@
 Â flag, with a number after it, starting at 1 and continuing upward.
 Â The units of \fIfile_size\fP are millions of bytes (1,000,000 bytes,
 Â not 1,048,576 bytes).
 +.IP
 +Note if this is used in conjunction with the
 +.B \-Z
 +option (the default on NetBSD), the process will likely not have
 +adequate permissions to open subsequent savefiles.
 Â .TP
 Â .B \-d
 Â Dump the compiled packet-matching code in a human readable form to
 @@ -861,15 +866,16 @@
 Â .PD
 Â If
 Â .I tcpdump
 -is running as root, after opening the capture device or input savefile,
 -but before opening any savefiles for output, change the user ID to
 +is running as root, after opening the capture device, input savefile,
 +or initial output savefile, change the user ID to
 Â .I user
 Â and the group ID to the primary group of
 Â .IR user .
 Â .IP
 Â This behavior is the default for NetBSD where
  .I tcpdump 
 -runs as the user ``_tcpdump''.
 +runs as the user ``_tcpdump'', with its root directory changed to
 +\fI/var/chroot/tcpdump\fP.
 Â .IP "\fI expression\fP"
 Â .RS
 Â selects which packets will be dumped.