Michael Wildpaner <[EMAIL PROTECTED]> writes:
> +     /* fail if there is nothing to search in */
> +     if ((user_sorted == NULL) || (user_length == 0))
> +             return NULL;

Hm, Solaris' bsearch() fails on empty input?  How bizarre.
Easily worked around though --- thanks for the report!

I suspect we'd better put a defense in get_group_line as well.
It looks like there are no other places at risk in the backend.

                        regards, tom lane

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