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From: Christian Franke <Christian.Franke@t-online.de>
To: cygwin@cygwin.com
Subject: Re: Cannot exec() program outside of /bin if PATH is unset
Date: Thu, 16 Oct 2014 21:51:00 -0000	[thread overview]
Message-ID: <54403DCD.7090107@t-online.de> (raw)
In-Reply-To: <20141014193045.GF2681@calimero.vinschen.de>

Corinna Vinschen wrote:
> ...
> I implemented this in the latest snapshot.  It calls SetDllDirectory
> on Cygwin's /bin, and dlopen addiotnally tries to load the DLL with
> LoadLibraryEx(LOAD_WITH_ALTERED_SEARCH_PATH) if all else failed.

For some reason, the SetDllDirectory() call has no effect for exec():

Testcase:

$ unset PATH

$ uname -srvm
-bash: uname: No such file or directory

$ /bin/uname -srvm
CYGWIN_NT-6.1-WOW64 1.7.33s(0.277/5/3) 20141014 19:44:03 i686

$ /usr/sbin/alternatives
/usr/sbin/alternatives: error while loading shared libraries: ?: cannot 
open shared object file: No such file or directory

$ PATH=/bin /usr/sbin/alternatives
alternatives version 1.3.30c - ...

$ cd /bin

$ /usr/sbin/alternatives
alternatives version 1.3.30c - ...



> Please give the latest snapshot from https://cygwin.com/snapshots/
> a try.

No regressions found yet :-)

Christian


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  reply	other threads:[~2014-10-16 21:51 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-12 18:02 Christian Franke
2014-09-12 19:39 ` Eric Blake
2014-09-12 21:14   ` Christian Franke
2014-09-12 21:56     ` Andrey Repin
2014-09-12 23:04       ` Christian Franke
2014-09-12 23:06         ` Eric Blake
2014-09-12 23:13           ` Eric Blake
2014-09-13 16:17             ` Christian Franke
2014-09-15  7:47               ` Peter Rosin
2014-09-15  9:28                 ` Peter Rosin
2014-09-15 17:16                 ` Christian Franke
2014-10-08 13:41                   ` Corinna Vinschen
2014-10-08 17:16                     ` Christian Franke
2014-10-09 10:03                       ` Corinna Vinschen
2014-10-09 14:25                         ` Eric Blake
2014-10-09 16:29                           ` Corinna Vinschen
2014-10-09 16:34                             ` tednolan
2014-10-10 10:34                               ` Corinna Vinschen
2014-10-10 11:24                                 ` Jan Nijtmans
2014-10-10 11:32                                   ` Arjen Markus
2014-10-10 12:10                                     ` tednolan
2014-10-10 12:13                                       ` Arjen Markus
2014-10-10 15:39                                         ` Corinna Vinschen
2014-10-14 19:30                                           ` Corinna Vinschen
2014-10-16 21:51                                             ` Christian Franke [this message]
2014-10-17  9:10                                               ` Corinna Vinschen
2014-10-17 14:51                                                 ` Corinna Vinschen
2014-10-17 17:56                                                   ` Christian Franke
2014-10-17 18:20                                                     ` Corinna Vinschen
2014-10-17 20:36                                                       ` Csaba Raduly
2014-09-12 22:50     ` Eric Blake
2014-09-13  5:24       ` David Boyce
2014-09-14  9:40   ` Csaba Raduly

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