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Date:	Tue, 28 Oct 2008 22:22:55 +0900 (JST)
From:	neomjp <neomjp AT yahoo DOT co DOT jp>
Subject:	Re: cygport/rsync problem
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I wrote this mail as a reply to 
http://sourceware.org/ml/cygwin-apps/2008-10/msg00075.html
but let me post it here because I am not a package
maintainer and am not a subscriber to cygwin-apps.

On 2008/10/26 21:42, Steffen Sledz wrote:
> rsync: Failed to dup/close: Socket operation on
non-socket (108)
> rsync error: error in IPC code (code 14) at
/home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/pipe.c(147)
 [receiver=3.0.4]
> rsync: read error: Connection reset by peer (104)
> rsync error: error in IPC code (code 14) at
/home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/io.c(791)
[sender=3.0.4]

This is probably the same error as the one that I had when
using rsync in cygwin-1.7. It is probably caused by some
firewall or anti-virus software blocking the operation of
rsync. In my case, the culprit was NOD32.

	When I ran rsync in gdb,

$ mkdir somedir
$ touch somedir/somefile
$ gdb --args /usr/bin/rsync -a somedir/ anotherdir
GNU gdb 6.8.0.20080328-cvs (cygwin-special)
.....
(no debugging symbols found)
(gdb) run
Starting program: /usr/bin/rsync -a somedir/ anotherdir
.....
(no debugging symbols found)
warning: NOD32 protected [MSAFD Tcpip [TCP/IP]]
warning: NOD32 protected [MSAFD Tcpip [UDP/IP]]
warning: NOD32 protected [MSAFD Tcpip [RAW/IP]]
warning: NOD32 protected [RSVP UDP Service Provider]
warning: NOD32 protected [RSVP TCP Service Provider]
(no debugging symbols found)
(no debugging symbols found)
---Type <return> to continue, or q <return> to quit---
(no debugging symbols found)
[New thread 1508.0x720]
[New thread 1508.0xeb0]
[New thread 1508.0x54c]
rsync: Failed to dup/close: Socket operation on non-socket
(108)
rsync error: error in IPC code (code 14) at
/home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/pipe.c(147)
[receiver=3.0.4]

	I have had no problems with rsync in cygwin-1.5 and
NOD32. There must be some changes in the implementation of
socket/IPC/pipe between cygwin-1.5 and -1.7, which NOD32
does not like. I did not track it down further because
this is a problem of NOD32 and because the workaround was
simple: add rsync to the exception list of NOD32.


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