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Bug 1548487 - ncat does not close connection with option -i when server quits
Summary: ncat does not close connection with option -i when server quits
Keywords:
Status: CLOSED DUPLICATE of bug 1078244
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: nmap
Version: 7.5
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Pavel Zhukov
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-02-23 16:29 UTC by Jaroslav Aster
Modified: 2018-02-26 13:43 UTC (History)
0 users

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-02-26 13:43:39 UTC
Target Upstream Version:
Embargoed:


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Description Jaroslav Aster 2018-02-23 16:29:29 UTC
Description of problem:

ncat does not close connection with option -i when server quit.


Version-Release number of selected component (if applicable):

nmap-ncat-6.40-13


How reproducible:

100%


Steps to Reproduce:

SERVER# nc -v -i 5 -l 10.19.112.13 1234
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Listening on 10.19.112.13:1234
Ncat: Connection from 10.16.69.241.
Ncat: Connection from 10.16.69.241:55932.
hello
Ncat: Idle timeout expired (5000 ms). QUITTING.

CLIENT# { echo hello; sleep 15s; } | nc -v -i 30 10.19.112.13 1234
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Connected to 10.19.112.13:1234.
Ncat: Idle timeout expired (30000 ms).

You can see, that server quits after 5 seconds, producer (echo) quits after 15 seconds, but nc client waits 30 seconds.


Actual results:

nc client does not quit when server quits.


Expected results:

nc client quits when server quits.

Comment 1 Pavel Zhukov 2018-02-23 19:21:31 UTC
Jaroslav, 
It's long story...
https://bugzilla.redhat.com/show_bug.cgi?id=1078244

Comment 2 Pavel Zhukov 2018-02-26 13:43:39 UTC

*** This bug has been marked as a duplicate of bug 1078244 ***


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