TIOCEXCL(2const) TIOCEXCL(2const)
NAME
TIOCEXCL, TIOCGEXCL, TIOCNXCL - exclusive mode
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <asm/termbits.h> /* Definition of TIOC*XCL constants */
#include <sys/ioctl.h>
int ioctl(int fd, TIOCEXCL);
int ioctl(int fd, TIOCGEXCL, int *argp);
int ioctl(int fd, TIOCNXCL);
DESCRIPTION
TIOCEXCL
Put the terminal into exclusive mode. No further open(2) opera-
tions on the terminal are permitted. (They fail with EBUSY, ex-
cept for a process with the CAP_SYS_ADMIN capability.)
TIOCGEXCL
If the terminal is currently in exclusive mode, place a nonzero
value in the location pointed to by argp; otherwise, place zero
in *argp.
TIOCNXCL
Disable exclusive mode.
RETURN VALUE
On success, 0 is returned. On error, -1 is returned, and errno is set
to indicate the error.
HISTORY
TIOCGEXCL
Linux 3.8.
SEE ALSO
ioctl(2), ioctl_tty(2)
Linux man-pages 6.9.1 2024-06-13 TIOCEXCL(2const)
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