simon@vision.UUCP (Simon Taylor) (12/12/89)
We are currently porting our Streams multiplexor driver to a Sun 3/80 SunOS 4.03. To be blunt.... /dev/tty doesn't work. Let me explain, if we run a Bourne shell on one of the pseudo devices, then cat a file > /dev/tty, we see the message cat: write error: Invalid argument When we run "su", it prompts for Password: and then (without being given any input) returns the Sorry message and returns to the shell prompt. I guess that here su is reading from /dev/tty and we have not set it up properly. Other than this everything seems to work fine. We have looked through all the relevant documentation, and spent a great deal of time groveling through header files, and the kernel with adb (looking to see what other drivers do in their open routines), but to no avail. Has anyone encountered similar problems in this area, if so can you help? Thanks in advance Simon Simon Taylor UUCP : simon@vision.uucp VisionWare Ltd BANGNET : ...!uunet!mcsun!ukc!vision!simon Systime House PHONE : +44 532 529292 Ex. 2458 Leeds Business Park FAX : +44 532 526614 Leeds LS27 0JG TELEX : 556283 SYSTIM G England ------------------------------------------------------------------------------- ---------------- VisionWare: The Home Of DOS-UNIX Integration ----------------- -------------------------------------------------------------------------------