help about free bsp version netcat to work it on ubuntu

[Chris Whitehouse]

On 24/07/2012 14:36, kpneal at pobox.com wrote:
> On Tue, Jul 24, 2012 at 07:13:00PM +0800, lei yang wrote:
>> On Tue, Jul 24, 2012 at 12:47 AM, Polytropon<freebsd at edvax.de>  wrote:
>>> On Mon, 23 Jul 2012 23:29:38 +0800, lei yang wrote:
>>>> Yes, the second version I post is using the source from you supplied,
>>>> then I compiled it, but it has no
>>>> "-U" flag like what I post, it seems a version different casued this.
>>>
>>> Yes. The version distributed by the ports collection is different
>>> from that one supplied with the base system of FreeBSD.
>>>
>>> To try _that_ version, you can download the source tarball and
>>> extract it; in the directory
>>>
>>> # wget ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/9.0-RELEASE/src.txz
>>> # tar xvf src.txz
>>
>> Thanks for the help,
>>
>> tar xvf src.txz
>> tar: This does not look like a tar archive
>> tar: Skipping to next header
>> tar: Archive contains obsolescent base-64 headers
>> tar: Read 4896 bytes from src.txz
>> tar: Error exit delayed from previous errors
>> [lyang0 at ala-lpggp2 lyang0]$ tar xvf src.txz
>> tar: This does not look like a tar archive
>> tar: Skipping to next header
>> tar: Archive contains obsolescent base-64 headers
>> tar: Read 4896 bytes from src.txz
>> tar: Error exit delayed from previous errors

Maybe a bad/incomplete download?
%fetch ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/9.0-RELEASE/src.txz
src.txz                                       100% of   89 MB  216 kBps 
00m00s
%md5 src.txz
MD5 (src.txz) = 7cce6b045f771cef2136df277d16331f
%tar xvf src.txz
x usr/src/
x usr/src/usr.bin/
x usr/src/release/
x usr/src/crypto/
x usr/src/include/
x usr/src/secure/
x usr/src/rescue/
x usr/src/gnu/
x usr/src/sbin/
x usr/src/games/
x usr/src/tools/
x usr/src/contrib/
x usr/src/kerberos5/
x usr/src/share/
...
...