Catching SIGHUP signals in Informix-4GL programs

I was reading through the Informix-4gl supplement manual which came with Informix-4GL v4.1 and I found the following clause (page S-205): ... You cannot control the processing that occurs when the SIGHUP or SIGPIPE interrupt is detected, even though the program catches these values. If I understand this clause correctly then there is no way for me to do my own cleanup when I receive SIGHUP ???? If this is correct then I consider this a MAJOR bug because I need to be able to detect when users log out (My users are connected through an X.25 pad which sends SIGHUPs when the connection is cleared). If this is true, then is there some way around this "feature" ? Steinthor -- Steinthor Bjarnason | ICEUUG chairman | This space available for Islandsbanki h.f. | Internet: stb@isbank.is | rent..... Kringlan 7 | Tel: +354-1-608000 | 155 Reykjavik, Iceland | Fax: +354-1-678711 |