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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <config_features.h>
#include <sal/config.h>
#if defined MACOSX
#include <cassert>
#include <limits>
#include <unistd.h>
#include <sys/stat.h>
#endif
#include <config_global.h>
#include <osl/process.h>
#include <sal/main.h>
#include "saltime.hxx"
#include "soffice.hxx"
#include <salusesyslog.hxx>
#if HAVE_SYSLOG_H
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#endif
extern "C" {
void sal_detail_initialize(int argc, char ** argv) {
if (argc == sal::detail::InitializeSoffice)
{
sal::detail::setSoffice();
return;
}
#if defined MACOSX && !HAVE_FEATURE_MACOSX_SANDBOX
// On macOS when not sandboxed, soffice can restart itself via exec (see
// restartOnMac in desktop/source/app/app.cxx), which leaves all file
// descriptors open, which in turn can have unwanted effects (see
// <https://bugs.libreoffice.org/show_bug.cgi?id=50603> "Unable to update
// LibreOffice without resetting user profile"). But closing fds in
// restartOnMac before calling exec does not work, as additional threads
// might still be running then, which can still use those fds and cause
// crashes. Therefore, the simplest solution is to close fds at process
// start (as early as possible, so that no other threads have been created
// yet that might already have opened some fds); this is done for all kinds
// of processes here, not just soffice, but hopefully none of our processes
// rely on being spawned with certain fds already open. Unfortunately, Mac
// macOS appears to have no better interface to close all fds (like
// closefrom):
long openMax = sysconf(_SC_OPEN_MAX);
// When LibreOffice restarts itself on macOS 11 beta on arm64, for
// some reason sysconf(_SC_OPEN_MAX) returns 0x7FFFFFFFFFFFFFFF,
// so use a sanity limit here.
if (openMax == -1 || openMax == std::numeric_limits<long>::max()) {
openMax = 100000;
}
assert(openMax >= 0 && openMax <= std::numeric_limits< int >::max());
for (int fd = 3; fd < int(openMax); ++fd) {
struct stat s;
if (fstat(fd, &s) != -1 && S_ISREG(s.st_mode))
close(fd);
}
#endif
sal_initGlobalTimer();
#if HAVE_SYSLOG_H
const char *use_syslog = getenv("SAL_LOG_SYSLOG");
sal_use_syslog = use_syslog != nullptr && !strcmp(use_syslog, "1");
if (sal_use_syslog)
openlog("libreoffice", 0, LOG_USER);
#endif
osl_setCommandArgs(argc, argv);
}
void sal_detail_deinitialize() {}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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