VHANGUP(2) - man page online | system calls

Virtually hangup the current terminal.

VHANGUP(2)                          Linux Programmer's Manual                          VHANGUP(2)

NAME vhangup - virtually hangup the current terminal
SYNOPSIS #include <unistd.h> int vhangup(void); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): vhangup(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
DESCRIPTION vhangup() simulates a hangup on the current terminal. This call arranges for other users to have a “clean” terminal at login time.
RETURN VALUE On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
ERRORS EPERM The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIG capability is required.
CONFORMING TO This call is Linux-specific, and should not be used in programs intended to be portable.
SEE ALSO capabilities(7), init(1)
COLOPHON This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at
Linux 2007-07-26 VHANGUP(2)
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vhangup(2) referred by capabilities(7) | syscalls(2)
refer to capabilities(7) | feature_test_macros(7) | init(1)