This bug was fixed in the package netcat-openbsd - 1.190-2
---------------
netcat-openbsd (1.190-2) unstable; urgency=low
* d/patches/misc-failures-and-features.patch: Refactor option/argument
verification logic and re-enable usage of '-s' (local source address) and
'-p' (local source port) in client mode (when '-l' is unset). Regression
introduced in version 1.187-1 of that file. Closes: #897020, LP: #1767283.
* debian/control: Bump Standards-Version to 4.1.4 (no changes necessary).
-- Guilhem Moulin <guil...@debian.org> Mon, 30 Apr 2018 19:53:34 +0200
** Changed in: netcat-openbsd (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1767283
Title:
nc doesn't support "-s IP" option
Status in netcat-openbsd package in Ubuntu:
Fix Released
Status in netcat-openbsd package in Debian:
Fix Released
Bug description:
Hey,
netcat shows a usage error if i try to use the "-s" option:
Example in Bionic:
$ netcat -s 127.0.0.1 127.0.0.1 22 < /dev/null
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]
Example in Xenial:
netcat -s 127.0.0.1 127.0.0.1 22 < /dev/null
SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4
Manpage shows that the option is still availible and should work. Both
systems use openbsd netcat.
$ type netcat
netcat is hashed (/bin/netcat)
$ ls -lah /bin/netcat
lrwxrwxrwx 1 root root 24 Apr 25 21:56 /bin/netcat -> /etc/alternatives/netcat
$ ls -lah /etc/alternatives/netcat
lrwxrwxrwx 1 root root 15 Apr 25 21:56 /etc/alternatives/netcat ->
/bin/nc.openbsd
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: netcat-openbsd 1.187-1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Fri Apr 27 13:41:20 2018
Dependencies:
gcc-8-base 8-20180414-1ubuntu2
libbsd0 0.8.7-1
libc6 2.27-3ubuntu1
libgcc1 1:8-20180414-1ubuntu2
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: netcat-openbsd
UpgradeStatus: No upgrade log present (probably fresh install)
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