[PATCH] iconv: do not report error exit with transliteration [BZ #32448]

[Florian Weimer]

* Aurelien Jarno:

> Commit 6cbf845fcdc7 ("iconv: Preserve iconv -c error exit on invalid
> inputs (bug 32046)") changed the error exit code to report an error when
> an input character has been transliterated. This looks like a bug as the
> moto in the iconv program is to report an error code in the same
> condition as the iconv() function.
>
> This happens because the STANDARD_TO_LOOP_ERR_HANDLER macro sets a
> default value for result and later updates it if the transliteration
> succeed. With the changes, setting the default value also marks the
> input as illegal.
>
> Fix that by setting up the default value of result only when the
> transliteration is not used. This works because __gconv_transliterate()
> calls __gconv_mark_illegal_input() to return an error.
>
> Fixes: 6cbf845fcdc7
> Resolves: BZ #32448
> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
> ---

Looks okay to me as well.

Aurelien, could you commit this?

Thanks,
Florian