NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO |
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vhangup(2) System Calls Manual vhangup(2)
vhangup - virtually hangup the current terminal
Standard C library (libc, -lc)
#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 to indicate the error.
EPERM The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIG capability is required.
Linux.
init(1), capabilities(7)
Linux man-pages 6.04 2023-03-30 vhangup(2)
Pages that refer to this page: login(1), syscalls(2), capabilities(7), agetty(8)