Re: SEGFAULT with NULL backend suffix definition (ITS#23)

[starder@rosinter.ru]

>Dammit! I've found a bug :)
>
>back-ldbm/search.c - call to subtree_candidate with UNINITIALIZED char *
>matched.
>On exit, where nothing was found, matched still NOT NULL and on following
>call free(matched), arbitraty data (in my case, it was Op structure -
>garbage was left on stack by previous call ) will freed. Any next calloc
>will owerwrite op structure and cause unpredictable results.
>
>So - just init matched on declare time
>
>char    *    matched = NULL;


I drop another look to code, and think, that best place to init matched -
subtree_candidates before dn2entry_r(). But it can depends..