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fcntl.h: define O_TTY_INIT to 0

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POSIX: "[If] either O_TTY_INIT is set in oflag or O_TTY_INIT has the
value zero, open() shall set any non-standard termios structure
terminal parameters to a state that provides conforming behavior."

The Linux kernel tty drivers always perform initialisation on their
devices to set known good termios values during the open(2) call.  This
means that setting O_TTY_INIT to zero is conforming.
This commit is contained in:
A. Wilcox 2019-03-13 11:16:11 -05:00 committed by Rich Felker
parent 788d5e24ca
commit 65c8be3804
1 changed files with 3 additions and 2 deletions
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5
include/fcntl.h
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@ -36,8 +36,9 @@ int openat(int, const char *, int, ...);
int posix_fadvise(int, off_t, off_t, int);
int posix_fallocate(int, off_t, off_t);
#define O_SEARCH O_PATH
#define O_EXEC O_PATH
#define O_SEARCH O_PATH
#define O_EXEC O_PATH
#define O_TTY_INIT 0
#define O_ACCMODE (03|O_SEARCH)
#define O_RDONLY 00