diff options
| author | ed <ed@FreeBSD.org> | 2009-02-28 10:10:30 +0000 |
|---|---|---|
| committer | ed <ed@FreeBSD.org> | 2009-02-28 10:10:30 +0000 |
| commit | f05698585dfff301fe972774bb632c6bdb28da90 (patch) | |
| tree | aed61ae8dea8d203ff43b736d45cb76269527ddc /lib/libc/sys/open.2 | |
| parent | b2ec174608f896fcb64ca3b112816ae647426614 (diff) | |
| download | FreeBSD-src-f05698585dfff301fe972774bb632c6bdb28da90.zip FreeBSD-src-f05698585dfff301fe972774bb632c6bdb28da90.tar.gz | |
Add missing POSIX 1003.1-2008 open(2) flag; O_TTY_INIT.
On FreeBSD, this is the default behaviour. According to the spec, we may
give this flag a value of zero, but I'd rather not do this. If we define
it to a non-zero value, we can always change default behaviour without
changing the ABI. This is very unlikely to happen, though.
Diffstat (limited to 'lib/libc/sys/open.2')
| -rw-r--r-- | lib/libc/sys/open.2 | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/lib/libc/sys/open.2 b/lib/libc/sys/open.2 index 8fc6d76..3a5979f 100644 --- a/lib/libc/sys/open.2 +++ b/lib/libc/sys/open.2 @@ -28,7 +28,7 @@ .\" @(#)open.2 8.2 (Berkeley) 11/16/93 .\" $FreeBSD$ .\" -.Dd April 10, 2008 +.Dd February 28, 2009 .Dt OPEN 2 .Os .Sh NAME @@ -116,6 +116,7 @@ O_FSYNC synchronous writes O_SYNC synchronous writes O_NOFOLLOW do not follow symlinks O_NOCTTY don't assign controlling terminal +O_TTY_INIT restore default terminal attributes .Ed .Pp Opening a file with @@ -208,6 +209,19 @@ The system call will not assign controlling terminals on .Fx . .Pp +.Dv O_TTY_INIT +may be used to ensure the OS restores the terminal attributes when +initially opening a TTY. +This is the default on +.Fx , +but is present for +.Tn POSIX +compatibility. +The initial call to +.Fn open +on a TTY will always restore default terminal attributes on +.Fx . +.Pp If successful, .Fn open returns a non-negative integer, termed a file descriptor. |
