ioctl() function

Mon Oct 12 12:53:00 GMT 1998

Hi 
I was trying to port some unix code and it uses ioctl() for serial comms.
sys/ioctl.h was either missing or blank - I can't remember.
I added some #defs from linux.
and now the code appears to read and write to/from the port.
The code I have checks if DCD is active to see if a call is being made to a
modem.
But this is where things don't work. 
ioctl(portfd, TIOCMGET, &stat) returns -1
so it never detects carrier. where can I get correct values for ioctl.h or
should I be using a different call under NT??
(NT4, sp3, 64MB)
TIA
Colman Curtin	Software Team Leader
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