TIOCEXCL2const
Exclusive mode
Usage
#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);
Library
Standard C library (libc, -lc)
Overview
- TIOCEXCL
-
Put the terminal into exclusive mode. No further open(2) operations on the terminal are permitted. (They fail with EBUSY, except for a process with the
CAP_SYS_ADMINcapability.)
- 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.
Releases
2 releases since Debian 13 (Trixie); the text changed 1 time.