1 files changed, 72 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/file/nocrt-isatty.cpp b/src/VBox/Runtime/common/file/nocrt-isatty.cpp
new file mode 100644
index 00000000..68be35bb
--- /dev/null
+++ b/src/VBox/Runtime/common/file/nocrt-isatty.cpp
@@ -0,0 +1,72 @@
+/* $Id: nocrt-isatty.cpp $ */
+/** @file
+ * IPRT - No-CRT - isatty().
+ */
+
+/*
+ * Copyright (C) 2022-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define IPRT_NO_CRT_FOR_3RD_PARTY
+#include "internal/nocrt.h"
+#include <iprt/nocrt/unistd.h>
+#include <iprt/nocrt/errno.h>
+#include <iprt/errcore.h>
+
+#ifdef RT_OS_WINDOWS
+# include <iprt/win/windows.h>
+#endif
+
+
+#undef isatty
+int RT_NOCRT(isatty)(int fd) RT_NOEXCEPT
+{
+#ifdef RT_OS_WINDOWS
+    HANDLE hNative = (HANDLE)(uintptr_t)(unsigned)fd;
+    DWORD  dwType = GetFileType(hNative);
+    if (dwType == FILE_TYPE_CHAR)
+        return 1;
+
+    if (dwType != FILE_TYPE_UNKNOWN)
+        errno = ENOTTY;
+    else
+        errno = RTErrConvertToErrno(RTErrConvertFromWin32(GetLastError()));
+    return 0;
+
+#else
+# error "port me"
+#endif
+}
+RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(isatty);
+