vhangup - virtually hangup the current terminal
#include <unistd.h>
int vhangup(void);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
vhangup():
Since glibc 2.21:
_DEFAULT_SOURCE
In glibc 2.19 and 2.20:
_DEFAULT_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
Up to and including glibc 2.19:
_BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
vhangup() simulates a hangup on the current terminal. This call arranges
for other users to have a “clean” terminal at login time.
On success, zero is returned. On error, -1 is returned, and
errno is set
appropriately.
- EPERM
- The calling process has insufficient privilege to call vhangup();
the CAP_SYS_TTY_CONFIG capability is required.
This call is Linux-specific, and should not be used in programs intended to be
portable.
init(1),
capabilities(7)