/* $Id: hardenedmain.cpp 79365 2019-06-26 15:57:32Z vboxsync $ */
/** @file
 * VBox Qt GUI - Hardened main().
 */

/*
 * Copyright (C) 2008-2019 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 */

#include <VBox/sup.h>


/**
 * No CRT on windows, so cook our own strcmp.
 *
 * @returns See man strcmp.
 * @param   psz1                The first string.
 * @param   psz2                The second string.
 */
static int MyStrCmp(const char *psz1, const char *psz2)
{
    for (;;)
    {
        char ch1 = *psz1++;
        char ch2 = *psz2++;
        if (ch1 != ch2)
            return ch1 < ch2 ? -1 : 1;
        if (!ch1)
            return 0;
    }
}


int main(int argc, char **argv, char **envp)
{
    /* First check whether we're about to start a VM: */
    bool fStartVM = false;
    /* In separate process: */
    bool fSeparateProcess = false;
    for (int i = 1; i < argc && !(fStartVM && fSeparateProcess); ++i)
    {
        /* NOTE: the check here must match the corresponding check for the
         * options to start a VM in main.cpp and UICommon.cpp exactly,
         * otherwise there will be weird error messages. */
        if (   !MyStrCmp(argv[i], "--startvm")
            || !MyStrCmp(argv[i], "-startvm"))
        {
            fStartVM = true;
        }
        else if (   !MyStrCmp(argv[i], "--separate")
                 || !MyStrCmp(argv[i], "-separate"))
        {
            fSeparateProcess = true;
        }
    }

    uint32_t fFlags = (fStartVM && !fSeparateProcess) ? 0 : SUPSECMAIN_FLAGS_DONT_OPEN_DEV;

    return SUPR3HardenedMain("VirtualBoxVM",
                             fFlags | SUPSECMAIN_FLAGS_TRUSTED_ERROR,
                             argc, argv, envp);
}