On Sun, 1 May 2005, [ISO-8859-1] Andreas V�gele wrote:
> There seems to be a bug in textinfo/makeinfo/multi.c in the function
> output_multitable_row().
Fix committed, thanks,
-Otto
>
> If a column contains only whitespace the following code may cause a
> segmentation fault. The problem is that the offset is only checked for
> zero before the loop but not while the loop is decrementing the offset.
>
> /* remove trailing whitespace from each column */
> [...]
> if (envs[i].output_paragraph_offset)
> while (cr_or_whitespace (CHAR_AT (envs[i].output_paragraph_offset -
> 1)))
> envs[i].output_paragraph_offset--;
>
> I can reproduce this problem under OpenBSD-current when building the
> documentation for Automake 1.9.5. The bug is also present in the CVS at
> savannah.gnu.org.
>
> Makeinfo doesn't crash if the offset is checked in the loop:
>
> while (envs[i].output_paragraph_offset
> && cr_or_whitespace (CHAR_AT (envs[i].output_paragraph_offset
> - 1)))
> envs[i].output_paragraph_offset--;
>
> [demime 1.01d removed an attachment of type application/octet-stream which
> had a name of patch-makeinfo_multi_c]
>
> _______________________________________________
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