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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | SEE ALSO | COLOPHON |
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TIOCSPGRP(2const) TIOCSPGRP(2const)
TIOCGPGRP, TIOCSPGRP, TIOCGSID - process group and session ID
Standard C library (libc, -lc)
#include <asm/termbits.h> /* Definition of TIOC* constants */
#include <sys/ioctl.h>
int ioctl(int fd, TIOCGPGRP, pid_t *argp);
int ioctl(int fd, TIOCSPGRP, const pid_t *argp);
int ioctl(int fd, TIOCGSID, pid_t *argp);
TIOCGPGRP
When successful, equivalent to *argp = tcgetpgrp(fd).
Get the process group ID of the foreground process group
on this terminal.
TIOCSPGRP
Equivalent to tcsetpgrp(fd, *argp).
Set the foreground process group ID of this terminal.
TIOCGSID
When successful, equivalent to *argp = tcgetsid(fd).
Get the session ID of the given terminal. This fails with
the error ENOTTY if the terminal is not a master
pseudoterminal and not our controlling terminal. Strange.
On success, 0 is returned. On error, -1 is returned, and errno
is set to indicate the error.
ENOTTY The terminal is not a master pseudoterminal and not our
controlling terminal.
EPERM Insufficient permission.
ioctl(2), ioctl_tty(2), tcgetpgrp(3), tcsetpgrp(3), tcgetsid(3)
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Linux man-pages 6.9.1 2024-06-13 TIOCSPGRP(2const)
Pages that refer to this page: ioctl_tty(2)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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