|TCGETSID(3)||Library Functions Manual||TCGETSID(3)|
tcgetsid — get
session ID associated with a controlling terminal
tcgetsid() function returns the value
of the session ID associated with the specified controlling terminal device.
The session ID is defined as the process group ID of the session leader.
If an error occurs,
tcgetsid() returns -1
and the global variable errno is set to indicate the
error, as follows:
tcgetsid() function is expected to be
compliant with the IEEE Std 1003.1-2008
tcgetsid() function has been available
since OpenBSD 5.5.
|October 17, 2017||OpenBSD-current|