From: VGris@aironet.com ("Griswold, Victor") Subject: tar 1.11.8, cygwin32 B17.1: Problem with remote tapes and ':' in filenames. 11 Feb 1997 22:45:15 -0800 Approved: cygnus.gnu-win32@cygnus.com Distribution: cygnus Message-ID: <199702111631.LAA03629.cygnus.gnu-win32@telxon> Mime-Version: 1.0 Content-Type: text/plain Original-To: "'GNU:Tar-Bugs'" , "Cygnus: GNU-WIN32" X-Priority: 3 X-Mailer: Internet Mail Service (5.0.1389.3) Original-Sender: owner-gnu-win32@cygnus.com An inappropriate parsing of a WIN32 filespec containing a ':' results in uncovering a bug in '__rmt_open' of 'src/rtapelib.c'. In line 311, 'remote_user' is dereferenced without first checking to see if it was specified by the invocation of 'tar'. In such a case, 'remote_user' is still set to NULL (line 282), and an exception occurs when trying to read location 0. With respect to cygwin32, the '_remdev' macro in 'rmt.h' presumes that, if a filespec contains a colon not preceeded by a slash, it is a remote filename. This is an inadequate check for the WIN32 environment, where "__rmt_path == (Path + 1) && isalpha((Path[0])) && (__rmt_path[1] == '/' || __rmt_path[1] == '\\') " should also be checked. The only apparent workaround, without something like the above patch, is to specify '--force-local' on all 'tar' command lines which might potentially contain a drive letter (unpleasant, and should be unnecessary, though an appropriate shell alias would help). Victor J. Griswold, D.Sc. Aironet Wireless Communications, Inc. voice: 330-664-7987 fax: 330-664-7301 email: (MS-Mail) vgris@aironet.com (MIME) Victor.Griswold@pobox.com - For help on using this list, send a message to "gnu-win32-request@cygnus.com" with one line of text: "help".