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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtCore>
#include <QtNetwork>
#if defined(Q_OS_WIN) && defined(Q_CC_MSVC)
# include <crtdbg.h>
#endif
#ifdef Q_OS_UNIX
# include <sys/resource.h>
# include <unistd.h>
#endif
int main(int argc, char *argv[])
{
#if defined(Q_OS_WIN) && defined(Q_CC_MSVC)
// Windows: Suppress crash notification dialog.
_CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG);
#elif defined(RLIMIT_CORE)
// Unix: set our core dump limit to zero to request no dialogs.
if (struct rlimit rlim; getrlimit(RLIMIT_CORE, &rlim) == 0) {
rlim.rlim_cur = 0;
setrlimit(RLIMIT_CORE, &rlim);
}
#endif
QCoreApplication app(argc, argv);
if (argc < 1) {
fprintf(stderr, "Need a port number\n");
return 1;
}
int port = QByteArrayView(argv[1]).toInt();
QTcpServer server;
if (!server.listen(QHostAddress::LocalHost, port)) {
fprintf(stderr, "Failed to listen: %s\n", server.errorString().toLatin1().constData());
if (server.serverError() == QTcpSocket::AddressInUseError) {
// let's see if we can find the process that would be holding this
// still open
#ifdef Q_OS_LINUX
static const char *ss_args[] = {
"ss", "-nap", "sport", "=", argv[1], nullptr
};
dup2(STDERR_FILENO, STDOUT_FILENO);
execvp(ss_args[0], const_cast<char **>(ss_args));
#endif
}
return 1;
}
printf("Listening\n");
fflush(stdout);
server.waitForNewConnection(5000);
qFatal("Crash");
return 0;
}
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