[8204] in Athena Bugs
rsaix 7.3M: sys/ioctl.h
daemon@ATHENA.MIT.EDU (Marc Horowitz)
Sun Sep 15 05:39:25 1991
To: bugs@ATHENA.MIT.EDU
Date: Sun, 15 Sep 91 05:40:05 EDT
From: Marc Horowitz <marc@ATHENA.MIT.EDU>
System name: rosebud
Type and version: POWER 7.3M (1 update(s) to same version)
Display type:
What were you trying to do?
More of the last bug report.
What's wrong:
The block near the top of ioctl is #ifdef'd at all. From the
InfoExplorer section "TTY Subsystem Overview: par 14":
TTY Common Code
The /usr/include/sys/ioctl.h file describes the interface to the
services provided by the TTY common code. The ioctl.h file, which is
used by all of the disciplines, includes the winsize structure as well
as several ioctl commands.
Common ioctl Commands for Terminal Device Support
There are three ioctl commands defined in the /usr/include/sys/ioctl.h
file for terminal device (TTY) support that can be used regardless of
which discipline is currently in effect.
TXISATTY
TXTTYNAME
TXGETCD
There is no indication here that you can only use this stuff if you
are compiling in the _POSIX_SOURCE, _XOPEN_SOURCE, and _ANSI_C_SOURCE
environments all at the same time. Sheesh.
What should have happened:
remove the #ifdef/#endif altogether.
Please describe any relevant documentation references:
See above. Don'cha love it when the docs contradict the code, and
the *code* is wrong?
