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-.\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu)
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.\" Modified, 27 May 2004, Michael Kerrisk <mtk.manpages@gmail.com>
-.\" Added notes on capability requirements
-.\"
-.TH vhangup 2 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-vhangup \- virtually hangup the current terminal
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <unistd.h>
-.P
-.B int vhangup(void);
-.fi
-.P
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.P
-.BR vhangup ():
-.nf
- Since glibc 2.21:
-.\" commit 266865c0e7b79d4196e2cc393693463f03c90bd8
- _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)
-.fi
-.SH DESCRIPTION
-.BR vhangup ()
-simulates a hangup on the current terminal.
-This call arranges for other
-users to have a \*(lqclean\*(rq terminal at login time.
-.SH RETURN VALUE
-On success, zero is returned.
-On error, \-1 is returned, and
-.I errno
-is set to indicate the error.
-.SH ERRORS
-.TP
-.B EPERM
-The calling process has insufficient privilege to call
-.BR vhangup ();
-the
-.B CAP_SYS_TTY_CONFIG
-capability is required.
-.SH STANDARDS
-Linux.
-.SH SEE ALSO
-.BR init (1),
-.BR capabilities (7)