vhangup2
Virtually hangup the current terminal
Usage
#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)
Library
Standard C library (libc, -lc)
Overview
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 to indicate the error.
Errors
- EPERM
-
The calling process has insufficient privilege to call
vhangup(); theCAP_SYS_TTY_CONFIGcapability is required.
Releases
19 releases since Debian 1.1 (Buzz); the text changed 15 times.