From cb962617311f6258e7213cecc0f64d211479f9e5 Mon Sep 17 00:00:00 2001 From: Brandon Wiley Date: Thu, 31 Mar 2016 12:46:39 -0500 Subject: Move termmon code from main into its own package --- common/termmon/termmon_linux.go | 49 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 common/termmon/termmon_linux.go (limited to 'common/termmon/termmon_linux.go') diff --git a/common/termmon/termmon_linux.go b/common/termmon/termmon_linux.go new file mode 100644 index 0000000..5540562 --- /dev/null +++ b/common/termmon/termmon_linux.go @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2015, Yawning Angel + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +package main + +import ( + "fmt" + "syscall" +) + +func TermMonitorInitLinux(m *TermMonitor) error { + // Use prctl() to have the kernel deliver a SIGTERM if the parent + // process dies. This beats anything else that can be done before + // #15435 is implemented. + _, _, errno := syscall.Syscall(syscall.SYS_PRCTL, syscall.PR_SET_PDEATHSIG, uintptr(syscall.SIGTERM), 0) + if errno != 0 { + var err error = errno + return fmt.Errorf("prctl(PR_SET_PDEATHSIG, SIGTERM) returned: %s", err) + } + return nil +} + +func init() { + TermMonitorOSInit = TermMonitorInitLinux +} -- cgit v1.2.3