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-rw-r--r--src/VBox/Runtime/r3/dir2.cpp183
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diff --git a/src/VBox/Runtime/r3/dir2.cpp b/src/VBox/Runtime/r3/dir2.cpp
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+/* $Id: dir2.cpp $ */
+/** @file
+ * IPRT - Directory Manipulation, Part 2.
+ */
+
+/*
+ * Copyright (C) 2006-2019 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.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#define LOG_GROUP RTLOGGROUP_DIR
+#include <iprt/dir.h>
+#include "internal/iprt.h"
+
+#include <iprt/assert.h>
+#include <iprt/file.h>
+#include <iprt/err.h>
+#include <iprt/log.h>
+#include <iprt/mem.h>
+#include <iprt/param.h>
+#include <iprt/path.h>
+#include <iprt/string.h>
+#include "internal/path.h"
+
+
+/**
+ * Recursion worker for RTDirRemoveRecursive.
+ *
+ * @returns IPRT status code.
+ * @param pszBuf The path buffer. Contains the abs path to the
+ * directory to recurse into. Trailing slash.
+ * @param cchDir The length of the directory we're cursing into,
+ * including the trailing slash.
+ * @param pDirEntry The dir entry buffer. (Shared to save stack.)
+ * @param pObjInfo The object info buffer. (ditto)
+ */
+static int rtDirRemoveRecursiveSub(char *pszBuf, size_t cchDir, PRTDIRENTRY pDirEntry, PRTFSOBJINFO pObjInfo)
+{
+ AssertReturn(RTPATH_IS_SLASH(pszBuf[cchDir - 1]), VERR_INTERNAL_ERROR_4);
+
+ /*
+ * Enumerate the directory content and dispose of it.
+ */
+ RTDIR hDir;
+ int rc = RTDirOpen(&hDir, pszBuf);
+ if (RT_FAILURE(rc))
+ return rc;
+ while (RT_SUCCESS(rc = RTDirRead(hDir, pDirEntry, NULL)))
+ {
+ if (!RTDirEntryIsStdDotLink(pDirEntry))
+ {
+ /* Construct the full name of the entry. */
+ if (cchDir + pDirEntry->cbName + 1 /* dir slash */ >= RTPATH_MAX)
+ {
+ rc = VERR_FILENAME_TOO_LONG;
+ break;
+ }
+ memcpy(&pszBuf[cchDir], pDirEntry->szName, pDirEntry->cbName + 1);
+
+ /* Deal with the unknown type. */
+ if (pDirEntry->enmType == RTDIRENTRYTYPE_UNKNOWN)
+ {
+ rc = RTPathQueryInfoEx(pszBuf, pObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
+ if (RT_SUCCESS(rc) && RTFS_IS_DIRECTORY(pObjInfo->Attr.fMode))
+ pDirEntry->enmType = RTDIRENTRYTYPE_DIRECTORY;
+ else if (RT_SUCCESS(rc) && RTFS_IS_FILE(pObjInfo->Attr.fMode))
+ pDirEntry->enmType = RTDIRENTRYTYPE_FILE;
+ else if (RT_SUCCESS(rc) && RTFS_IS_SYMLINK(pObjInfo->Attr.fMode))
+ pDirEntry->enmType = RTDIRENTRYTYPE_SYMLINK;
+ }
+
+ /* Try the delete the fs object. */
+ switch (pDirEntry->enmType)
+ {
+ case RTDIRENTRYTYPE_FILE:
+ rc = RTFileDelete(pszBuf);
+ break;
+
+ case RTDIRENTRYTYPE_DIRECTORY:
+ {
+ size_t cchSubDir = cchDir + pDirEntry->cbName;
+ pszBuf[cchSubDir++] = '/';
+ pszBuf[cchSubDir] = '\0';
+ rc = rtDirRemoveRecursiveSub(pszBuf, cchSubDir, pDirEntry, pObjInfo);
+ if (RT_SUCCESS(rc))
+ {
+ pszBuf[cchSubDir] = '\0';
+ rc = RTDirRemove(pszBuf);
+ }
+ break;
+ }
+
+ //case RTDIRENTRYTYPE_SYMLINK:
+ // rc = RTSymlinkDelete(pszBuf, 0);
+ // break;
+
+ default:
+ /** @todo not implemented yet. */
+ rc = VINF_SUCCESS;
+ break;
+ }
+ if (RT_FAILURE(rc))
+ break;
+ }
+ }
+ if (rc == VERR_NO_MORE_FILES)
+ rc = VINF_SUCCESS;
+ RTDirClose(hDir);
+ return rc;
+}
+
+
+RTDECL(int) RTDirRemoveRecursive(const char *pszPath, uint32_t fFlags)
+{
+ AssertReturn(!(fFlags & ~RTDIRRMREC_F_VALID_MASK), VERR_INVALID_PARAMETER);
+
+ /* Get an absolute path because this is easier to work with. */
+ /** @todo use RTPathReal here instead? */
+ char szAbsPath[RTPATH_MAX];
+ int rc = RTPathAbs(pszPath, szAbsPath, sizeof(szAbsPath));
+ if (RT_FAILURE(rc))
+ return rc;
+
+ /* This API is not permitted applied to the root of anything. */
+ if (RTPathCountComponents(szAbsPath) <= 1)
+ return VERR_ACCESS_DENIED;
+
+ /* Because of the above restriction, we never have to deal with the root
+ slash problem and can safely strip any trailing slashes and add a
+ definite one. */
+ RTPathStripTrailingSlash(szAbsPath);
+ size_t cchAbsPath = strlen(szAbsPath);
+ if (cchAbsPath + 1 >= RTPATH_MAX)
+ return VERR_FILENAME_TOO_LONG;
+ szAbsPath[cchAbsPath++] = '/';
+ szAbsPath[cchAbsPath] = 0;
+
+ /* Check if it exists so we can return quietly if it doesn't. */
+ RTFSOBJINFO SharedObjInfoBuf;
+ rc = RTPathQueryInfoEx(szAbsPath, &SharedObjInfoBuf, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
+ if ( rc == VERR_PATH_NOT_FOUND
+ || rc == VERR_FILE_NOT_FOUND)
+ return VINF_SUCCESS;
+ if (RT_FAILURE(rc))
+ return rc;
+ if (!RTFS_IS_DIRECTORY(SharedObjInfoBuf.Attr.fMode))
+ return VERR_NOT_A_DIRECTORY;
+
+ /* We're all set for the recursion now, so get going. */
+ RTDIRENTRY SharedDirEntryBuf;
+ rc = rtDirRemoveRecursiveSub(szAbsPath, cchAbsPath, &SharedDirEntryBuf, &SharedObjInfoBuf);
+
+ /* Remove the specified directory if desired and removing the content was
+ successful. */
+ if ( RT_SUCCESS(rc)
+ && !(fFlags & RTDIRRMREC_F_CONTENT_ONLY))
+ {
+ szAbsPath[cchAbsPath] = 0;
+ rc = RTDirRemove(szAbsPath);
+ }
+ return rc;
+}
+