|TCSETPGRP(3)||Library Functions Manual||TCSETPGRP(3)|
tcsetpgrp — set
foreground process group ID
If the process has a controlling terminal, the
tcsetpgrp() function sets the foreground process
group ID associated with the terminal device to
pgrp_id. The terminal device associated with
fd must be the controlling terminal of the calling
process and the controlling terminal must be currently associated with the
session of the calling process. The value of pgrp_id
must be the same as the process group ID of a process in the same session as
the calling process.
If the calling process is a member of a background process group,
the process group will be sent a
SIGTTOU signal. If
the calling process is blocking or ignoring
signals, the process is allowed to perform the operation and the
SIGTTOU signal is not sent.
Upon successful completion,
returns a value of zero.
If an error occurs,
tcsetpgrp() returns -1
and the global variable errno is set to indicate the
error, as follows:
tcsetpgrp() function was interrupted by a signal.
tcsetpgrp() function is expected to be
compliant with the IEEE Std 1003.1-1988
|March 7, 2017||OpenBSD-current|