Hi, On 22/12/11 13:38, Larry Hall (Cygwin) wrote: > On 12/21/2011 9:10 PM, Shaddy Baddah wrote: >> Hi Larry, >> >> On 22/12/11 12:25, Larry Hall (Cygwin) wrote: >>> On 12/21/2011 8:17 PM, Shaddy Baddah wrote: >>>> Hi, >>>> >>>> I'm experiencing a wider problem with sftp'ing to/from a Cygwin sshd >>>> service. However as a starting point into debugging, I've identified a >>>> simple failure in the sftp-server that may give an indication into the >>>> wider problem. >>>> >>>> When I ran just a simple usage argument to sftp-server in a mintty >>>> session, the command failed: >>>> >>>> sbaddah@*********** ~ >>>> $ /usr/sbin/sftp-server -h; x=$?; echo $x >>>> 127 >>> >>> This works fine for me from mintty. Just a shot in the dark but can >>> you try it with a local user? How about a local user that's part of >>> the local Administrators group? >> >> Yes, this has made a difference. Thank you. I ran against a local >> user, although they were not a local administrator. It ran fine: >> >> portapps@*********** ~ >> $ /usr/sbin/sftp-server -h >> usage: sftp-server [-ehR] [-f log_facility] [-l log_level] [-u umask] >> >> I guess that points towards a pseudo terminal handling glitch for a >> domain user, right? > > Not definitely, no. I just tried with my work account (which is a domain > account) and found no problem. Although I can't compare directly with > the your IDs, I have root(0) and Administrators(544) on mine. Maybe > try adding > these if you don't have them already. >
The user is in the Administrators group of course. But as you only get Administrators group for your session if you "Run as administrator"/privilege elevate, I don't run it that way. But it doesn't matter anyway. Either way, I encounter the same problem. And this with the latest 1.7.10 snapshot to ensure it isn't something that's already been fixed. Also, there is a twist. Running under strace alters the behaviour. Although I'm not totally surprised by this because I've seen that strace alters tty I/O when I was debugging a problem a couple years back (http://sourceware.org/ml/cygwin-developers/2010-02/msg00043.html). /Regular session/ sbaddah@*********** ~ $ id -a uid=42037(sbaddah) gid=10513(Domain Users) groups=10513(Domain Users),545(Users),<redacted...> sbaddah@*********** ~ $ /usr/sbin/sftp-server -h; x=$?; echo $x 127 sbaddah@*********** ~ $ strace -o /tmp/sftp.out -f /usr/sbin/sftp-server -h usage: sftp-server [-ehR] [-f log_facility] [-l log_level] [-u umask] /Run as administrator session/ sbaddah@*********** ~ $ id -a uid=42037(sbaddah) gid=10513(Domain Users) groups=10513(Domain Users),544(Administrators),545(Users),<redacted...> sbaddah@*********** ~ $ /usr/sbin/sftp-server -h; x=$?; echo $x 127 sbaddah@*********** ~ $ strace -o /tmp/sftp.out -f /usr/sbin/sftp-server -h usage: sftp-server [-ehR] [-f log_facility] [-l log_level] [-u umask] I'll start setting up for dll debugging now. -- Shaddy -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
