1 files changed, 127 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/path/RTPathFindCommon.cpp b/src/VBox/Runtime/common/path/RTPathFindCommon.cpp
new file mode 100644
index 00000000..ddf3f6fc
--- /dev/null
+++ b/src/VBox/Runtime/common/path/RTPathFindCommon.cpp
@@ -0,0 +1,127 @@
+/* $Id: RTPathFindCommon.cpp $ */
+/** @file
+ * IPRT - RTPathFindCommon implementations.
+ */
+
+/*
+ * Copyright (C) 2020-2022 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include "internal/iprt.h"
+#include <iprt/path.h>
+
+#include <iprt/alloca.h>
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/mem.h>
+#include <iprt/string.h>
+#include <iprt/uni.h>
+
+
+#define RTPATH_TEMPLATE_CPP_H "RTPathFindCommon.cpp.h"
+#include "rtpath-expand-template.cpp.h"
+
+
+RTDECL(size_t) RTPathFindCommonEx(size_t cPaths, const char * const *papszPaths, uint32_t fFlags)
+{
+    /*
+     * Validate input.
+     */
+    AssertReturn(RTPATH_STR_F_IS_VALID(fFlags, RTPATHFINDCOMMON_F_IGNORE_DOTDOT), 0);
+    AssertReturn(cPaths > 0, 0);
+    AssertPtrReturn(papszPaths, 0);
+    size_t i = cPaths;
+    while (i-- > 0)
+        AssertPtrReturn(papszPaths[i], 0);
+
+    /*
+     * Duplicate papszPaths so we can have individual positions in each path.
+     * Use the stack if we haven't got too many paths.
+     */
+    void        *pvFree;
+    const char **papszCopy;
+    size_t      cbNeeded = cPaths * sizeof(papszCopy[0]);
+    if (cbNeeded <= _2K)
+    {
+        pvFree = NULL;
+        papszCopy = (const char **)alloca(cbNeeded);
+    }
+    else
+    {
+        pvFree = RTMemTmpAlloc(cbNeeded);
+        papszCopy = (const char **)pvFree;
+    }
+    AssertReturn(papszCopy, 0);
+    memcpy(papszCopy, papszPaths, cbNeeded);
+
+    /*
+     * Invoke the worker for the selected path style.
+     */
+    size_t cchRet;
+    switch (fFlags & RTPATH_STR_F_STYLE_MASK)
+    {
+#if RTPATH_STYLE == RTPATH_STR_F_STYLE_DOS
+        case RTPATH_STR_F_STYLE_HOST:
+#endif
+        case RTPATH_STR_F_STYLE_DOS:
+            cchRet= rtPathFindCommonStyleDos(cPaths, papszCopy, fFlags);
+            break;
+
+#if RTPATH_STYLE != RTPATH_STR_F_STYLE_DOS
+        case RTPATH_STR_F_STYLE_HOST:
+#endif
+        case RTPATH_STR_F_STYLE_UNIX:
+            cchRet = rtPathFindCommonStyleUnix(cPaths, papszCopy, fFlags);
+            break;
+
+        default:
+            AssertFailedStmt(cchRet = 0); /* impossible */
+    }
+
+    /*
+     * Clean up and return.
+     */
+    if (pvFree)
+        RTMemTmpFree(pvFree);
+    return cchRet;
+}
+RT_EXPORT_SYMBOL(RTPathFindCommonEx);
+
+
+RTDECL(size_t) RTPathFindCommon(size_t cPaths, const char * const *papszPaths)
+{
+    return RTPathFindCommonEx(cPaths, papszPaths, RTPATH_STR_F_STYLE_HOST);
+}
+RT_EXPORT_SYMBOL(RTPathFindCommon);
+