libpd - PQfinish() - crashes client application in some cases

Hi,

I shall try to write english well enough :)

I'm writing a GUI client to access my PostrgeSQL DB, with FLTK
libraries. Sometimes, the client crashes.

I have written un source code, as little as possible, without FLTK
libraries, to test the behavior of PQfinish(), and I noticed :

If no connexion has ever been made, [ PQstatus() retuns 'CONNECTION_BAD'
] , a call to PQfinish(...) does not do something wrong.
But il I connect with PQsetdblogin(..), [ PQstatus returns
'CONNECTION_OK ], a first call to PQfinish(...) disconnects the client,
[ PQstatus returns 'CONNECTION_BAD' ], and A SECOND call to PQfinish(..)
make the client to crash with a system message 'segmentation fault'.

The source code I made to test interactively connections, disconnections
and status is attached to this mail.

I could be told that one does not call PQfinish() when PQstatus is
'CONNECTION_BAD, but it is done in the PostgreSQL documentation example
(Programmer's guide, chapter 1.11)

I hope this will be useful for you.

Here is my computer configuration :
CPU : Pentium II 350 MHz
OS : Linux SuSE 7.2 upgraded with kernel 2.4.8
Compiler : GNU gcc version2.95.3
Linker : GNU ld version 2.10.91 (with BFD 2.10.91.0.4)
PostgreSQL : Version 7.1.3 (downloaded on ftp.fr.postgresql.org )

--
Jean-Michel Chabanne
77450 MONTRY (FRANCE)
48" 54' N - 2" 49' E
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