Package: netcat-openbsd
Version: 1.190-1
Hi,
while triaging [1] I realized Debian is affected as well and the change is
from Guilhem, so I wanted to report to you as well.
Some details:
-s is broken, e.g. example from the man page:
# netcat -s 10.1.2.3 host.example.com 42
usage: nc [-46CDdFhklNnrStUuvZz] [-I length] [-i interval] [-M ttl]
[-m minttl] [-O length] [-P proxy_username] [-p source_port]
[-q seconds] [-s source] [-T keyword] [-V rtable] [-W recvlimit]
[-w timeout]
[-X proxy_protocol] [-x proxy_address[:port]]
[destination] [port]
This is since 1.187-1 by this change:
commit 2ebffb014c830e49f6fad600c59cc1b82fe356a4
Author: Guilhem Moulin <guil...@debian.org>
Date: Sun Dec 3 22:58:11 2017 +0100
Allow usage of -s with -l for consistency with netcat-traditional.
In gdb I see it gets to read -s
case 's':
sflag = optarg;
break;
It realizes no more options are there and then ends at
} else if (argv[0] && argv[1]) {
host = argv[0];
uport = &argv[1];
if (pflag || sflag)
usage(1);
Thereby this check doesn't allow slfag/pflag along with "two arg usage"
It might even be correct to do so, I'm really not deep into netcat, but if
so I don#t see it immediately and would appreciate your explanation (or
help on a fix if it really is an issue).
[1]: https://bugs.launchpad.net/ubuntu/+source/netcat-openbsd/+bug/1767283
--
Christian Ehrhardt
Software Engineer, Ubuntu Server
Canonical Ltd
