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From krb5-bugs-incoming-bounces@PCH.MIT.EDU Thu Apr 17 22:11:57 2008
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Date: Wed, 16 Apr 2008 14:42:49 -0400
Message-Id: <200804161842.m3GIgn2s031312@blade.boston.redhat.com>
To: krb5-bugs@mit.edu
Subject: ftp client doesn't always get filenames right during mget with 'case'
enabled
From: nalin@redhat.com
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>Submitter-Id: net
>Originator: Nalin Dahyabhai
>Organization: Red Hat
>Confidential: no
>Synopsis: when the 'case' option is enabled, mget can miscompute the destination
filename
>Severity: non-critical
>Priority: medium
>Category: krb5-appl
>Class: sw-bug
>Release: 1.6.3
>Environment:
System: Linux blade.boston.redhat.com 2.6.23-6.fc8 #1 SMP Thu Oct 11 13:36:39 EDT
2007 x86_64 x86_64 x86_64 GNU/Linux
Architecture: x86_64
>Description:
While processing an "mget" command with case mapping enabled,
the client can attempt to store a file's data in the wrong
local file.
In cases where the client determines that the local file's name
doesn't need to be changed from the remote name, the client has
been setting the target filename pointer to the buffer in which
it would store the lower-cased version of the name, even if it
ended up not generating a lower-cased version of the name,
causing the incoming data to be stored in whichever file whose
name was last generated. (This is in our bug tracking system at
http://bugzilla.redhat.com/442713.)
>How-To-Repeat:
Create files in a directory with these names:
Test1.out1
TEST2.OUT2
tesT3.Out3
TEST4.OUT4
Connect with a client, turning prompting off, case mapping on,
and use an mget command with a glob to retrieve all of the
files ("mget *"). Absent any specific locale information, the
order of files sent to the client will be this:
TEST2.OUT2
TEST4.OUT4
Test1.out1
tesT3.Out3
The client will store the contents of the first file in a local
file named "test2.out2", and the contents of the last three
files in a local file named "test4.out4".
>Fix:
This patch differs a bit from the one attached to the bug report
mentioned above, but it has a similar effect.
diff -up src/appl/gssftp/ftp/cmds.c src/appl/gssftp/ftp/cmds.c
--- src/appl/gssftp/ftp/cmds.c 2008-04-16 10:36:13.000000000 -0400
+++ src/appl/gssftp/ftp/cmds.c 2008-04-16 10:36:16.000000000 -0400
@@ -1013,8 +1013,10 @@ void mget(argc, argv)
tp++;
tp2++;
}
+ tp = tmpbuf;
+ } else {
+ tp = cp;
}
- tp = tmpbuf;
}
if (ntflag) {
tp = dotrans(tp);
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From krb5-bugs-incoming-bounces@PCH.MIT.EDU Mon May 12 15:33:04 2008
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Date: Mon, 12 May 2008 14:18:57 -0400
Message-Id: <200805121818.m4CIIv9S027326@blade.bos.redhat.com>
To: krb5-bugs@mit.edu
From: nalin@redhat.com
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Errors-To: krb5-bugs-incoming-bounces@PCH.MIT.EDU
>Submitter-Id: net
>Originator: Nalin Dahyabhai
>Organization:
>Confidential: no
>Synopsis: ftp client breaks when case-mapping is enabled
>Severity: non-critical
>Priority: medium
>Category: krb5-appl
>Class: sw-bug
>Release: 1.6.3
>Environment:
System: Linux blade.bos.redhat.com 2.6.25-14.fc9.x86_64 #1 SMP Thu May 1 06:06:21 EDT
2008 x86_64 x86_64 x86_64 GNU/Linux
Architecture: x86_64
>Description:
When "case" is enabled, the FTP client sets the local (target) filename
to the buffer in which it stores the generated lower-cased version of
the file's name, even it ended up not generating a lower-cased version
of the name, causing the client to store the incoming data in whichever
file whose name it had last generated.
>How-To-Repeat:
Create these files in a space you can get to using the FTP client:
Test1.out1
TEST2.OUT2
tesT3.Out3
TEST4.OUT4
Now ftp in, switch on case-mapping (with the "case" command), and
attempt to retrieve the three files using "mget". You may end up with
files named "test2.out2" and "test4.out4", if the server sends them in
this order:
(remote) (local)
TEST2.OUT2 -> test2.out2
TEST4.OUT4 -> test4.out4
Test1.out1 -> test4.out4
tesT3.Out3 -> test4.out4
>Fix:
This patch fixes it for me:
diff -up src/appl/gssftp/ftp/cmds.c src/appl/gssftp/ftp/cmds.c
--- src/appl/gssftp/ftp/cmds.c
+++ src/appl/gssftp/ftp/cmds.c
@@ -1013,8 +1013,10 @@ void mget(argc, argv)
tp++;
tp2++;
}
+ tp = tmpbuf;
+ } else {
+ tp = cp;
}
- tp = tmpbuf;
}
if (ntflag) {
tp = dotrans(tp);
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Date: Mon, 12 May 2008 15:34:33 -0400
From: Nalin Dahyabhai <nalin@redhat.com>
To: krb5 <rt@krbdev.mit.edu>
Subject: Re: [krbdev.mit.edu #5961] AutoReply: ftp client breaks when case-mapping is enabled
RT-Send-Cc:
Aaargh. Please close this as a duplicate of #5940, which I missed when
I was searching to check whether or not I'd already reported this bug.
Sorry for any confusion,
Nalin
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