Thread View: gnu.utils.bug
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Started by Peter Radig
Mon, 05 Feb 1990 15:30
GNU tar: Problems with filenames of more than 14 chars
Author: Peter Radig
Date: Mon, 05 Feb 1990 15:30
Date: Mon, 05 Feb 1990 15:30
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Although I know that it is not the primary duty of GNU program authors to make their programs run on Unix Sys V, I would like to discuss one problem: Recently, I got the uunet-tapes and tried to load the TeX sources from one tape with GNU tar. But the filenames of the sources on this tape only differ in their last two chars (i.e. char 16 and 17). Since Sys V allows only filenames with 14 chars, I had no other choice than to load one file, rename it, load the next file, etc. Did anyone solve this problem in a quite better manner than I did? (I think of a extension to GNU tar that allows to remap long filenames automagically, e.g. very_long_filename.1 ---> AAfilename.1 very_long_filename.2 ---> AAfilename.2 another_dirty_filename.aa ---> ABilename.aa third_filename_so_looooong ---> ACo_looooong - Maybe there is another proposal for solving this problem?) Any hints??? Peter -- Peter Radig Voice: +49 69 746972 USENET: peter@radig.de or: uunet!unido!radig!peter
Re: GNU tar: Problems with filenames of more than 14 chars
Author: David J. MacKenzie
Date: Mon, 05 Feb 1990 23:32
Date: Mon, 05 Feb 1990 23:32
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> Recently, I got the uunet-tapes and tried to load the TeX sources from > one tape with GNU tar. But the filenames of the sources on this tape > only differ in their last two chars (i.e. char 16 and 17). Since Sys V > allows only filenames with 14 chars, I had no other choice than to load > one file, rename it, load the next file, etc. An option to resolve name clashes (like Kermit's) might be useful even to BSD users. If it is about to extract a file that already exists, it changes the name of the file it is about to create so that it is similar, but unique. -- David J. MacKenzie <djm@eng.umd.edu> <djm@ai.mit.edu>
Re: GNU tar: Problems with filenames of more than 14 chars
Author: John Plocher
Date: Wed, 07 Feb 1990 08:16
Date: Wed, 07 Feb 1990 08:16
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+-- In <1990Feb5.153048.1824@orfeo.radig.de> peter@radig.de (Peter Radig) writes | allows only filenames with 14 chars, I had no other choice than to load | one file, rename it, load the next file, etc. +-- There was a very nice routine posted to sources.misc about a year ago that used some good heuristics to convert a name from BSD (long) style to SYSV (14 char) style. It elided vowels, shortened multi-part names (foo.bar.baz.a.1 became foo.br.bz.a1 or some such) ... I reworked the program into a callable function that could be given an argument to permute the heuristics (in case 2 long names "hashed" into the same short name) and inserted it into the tar source (AT&T, not Gnu :-) so that it worked on pathname segments so I could extract X11R3 source onto a Microport Vr3 machine :-) The mods were very simple (there is one place where a filename is extracted from the archive and the function can be applied there...) Now that I no longer need to use 386's with System V I no longer have that code so I can't pass it on, but as I said, it wasn't hard... In all, since the System V filesystem is being carried on into the Vr4 world, adding this functionality makes lots of sense. -John Plocher
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