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VHANGUP(2) - Linux man page online | System calls

Virtually hangup the current terminal.

Chapter
2016-03-15
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(): 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)

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

init(1), capabilities(7)

COLOPHON

This page is part of release 4.15 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 https://www.kernel.org/doc/man-pages/.
Linux 2016-03-15 VHANGUP(2)
This manual Reference Other manuals
vhangup(2) referred by capabilities(7) | syscalls(2)
refer to capabilities(7) | feature_test_macros(7) | init(1)
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