vhangup - virtually hangup the current terminal

vhangup() simulates a hangup on the current terminal. This call arranges for other users to have a “clean” terminal at login time.

EPERM The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIG capability is required.

Standard C library (libc, -lc)

vhangup - virtually hangup the current terminal

On success, zero is returned. On error, -1 is returned, and errno is set to indicate the error.

init(1), capabilities(7) Linux man-pages 6.9.1 2024-05-02 vhangup(2)

Linux.

#include<unistd.h>intvhangup(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)