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2dee523608
The full license texts are not added because they were already added in a previous commit. Signed-off-by: Ralf Habacker <ralf.habacker@freenet.de> see #394
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
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* Copyright 2003 Red Hat, Inc.
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* Copyright 2007-2016 Ralf Habacker
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* Copyright 2014-2018 Collabora Ltd.
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* Copyright 2016 Yiyang Fei
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*
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* SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
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*
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* Licensed under the Academic Free License version 2.1
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* This test utility function is separated from test-utils.h because it
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* needs to be used by test-segfault, which deliberately crashes itself.
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*
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* test-segfault can't be linked to non-self-contained dbus code because
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* we want to avoid building it with the AddressSanitizer even if we are
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* using the AddressSanitizer for the rest of dbus, so that the
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* AddressSanitizer doesn't turn raise(SIGSEGV) into the equivalent of
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* _exit(1), causing the test that uses test-segfault to see an unexpected
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* exit status.
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*/
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#include "config.h"
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#include "disable-crash-handling.h"
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#ifdef DBUS_WIN
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#include <stdio.h>
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#include <windows.h>
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#include <dbus/dbus-macros.h>
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static int exception_handler (LPEXCEPTION_POINTERS p) _DBUS_GNUC_NORETURN;
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static int
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exception_handler (LPEXCEPTION_POINTERS p)
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{
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ExitProcess (0xc0000005);
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}
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/**
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* Try to disable core dumps and similar special crash handling.
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*/
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void
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_dbus_disable_crash_handling (void)
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{
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/* Disable Windows popup dialog when an app crashes so that app quits
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* immediately with error code instead of waiting for user to dismiss
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* the dialog. */
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DWORD dwMode = SetErrorMode (SEM_NOGPFAULTERRORBOX);
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SetErrorMode (dwMode | SEM_NOGPFAULTERRORBOX);
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/* Disable "just in time" debugger */
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SetUnhandledExceptionFilter ((LPTOP_LEVEL_EXCEPTION_FILTER) &exception_handler);
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}
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#else /* !DBUS_WIN */
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#ifdef HAVE_SYS_PRCTL_H
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#include <sys/prctl.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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/**
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* Try to disable core dumps and similar special crash handling.
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*/
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void
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_dbus_disable_crash_handling (void)
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{
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#ifdef HAVE_SETRLIMIT
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/* No core dumps please, we know we crashed. */
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struct rlimit r = { 0, };
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getrlimit (RLIMIT_CORE, &r);
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r.rlim_cur = 0;
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setrlimit (RLIMIT_CORE, &r);
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#endif
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#if defined(HAVE_PRCTL) && defined(PR_SET_DUMPABLE)
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/* Really, no core dumps please. On Linux, if core_pattern is
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* set to a pipe (for abrt/apport/corekeeper/etc.), RLIMIT_CORE of 0
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* is ignored (deliberately, so people can debug init(8) and other
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* early stuff); but Linux has PR_SET_DUMPABLE, so we can avoid core
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* dumps anyway. */
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prctl (PR_SET_DUMPABLE, 0, 0, 0, 0);
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#endif
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}
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#endif /* !DBUS_WIN */
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