[Bug libc/12084] iconvconfig causes a Segmentation Fault when only conversion from or to a charset is possible

["dtrebbien at gmail dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=12084

Daniel Trebbien <dtrebbien at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|iconvconfig causes a        |iconvconfig causes a
                   |Segmentation Fault when     |Segmentation Fault when
                   |only conversion from or to  |only conversion from or to
                   |a charset is possible and   |a charset is possible
                   |the source or destination   |
                   |charset is referenced by    |
                   |alias                       |

--- Comment #4 from Daniel Trebbien <dtrebbien at gmail dot com> 2010-10-17 16:22:48 UTC ---
Well, I tried out the test case on a fresh Ubuntu 8.10 machine (libc version
2.8.90) and I was able to reproduce the issue. I then tried out Andreas'
suggestion, but simply changing `UTF-8//` to `UTF8//` did not stop the
Segmentation Fault from occurring. Only by adding both of these lines:
module    ABC//    UTF8//    ABC    1
module    UTF8//    ABC//    ABC    1

does `iconvconfig` not cause a seg. fault (and it does not matter if I use
`UTF8//` or the alias `UTF-8//`).

By the way, I also tried:
module    HPGREEK8//    ABC//    ABC    1

(causes a seg. fault). This is kind of interesting because `HPGREEK8//` is an
alias that is defined in `/usr/lib/gconv/gconv-modules` whereas `UTF-8//` is a
built-in alias.

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