Adding upstream version 6.1.22-dfsg.upstream/6.1.22-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 359 insertions, 0 deletions

diff --git a/src/VBox/Runtime/tools/RTRmDir.cpp b/src/VBox/Runtime/tools/RTRmDir.cpp
new file mode 100644
index 00000000..8c7d029d
--- /dev/null
+++ b/src/VBox/Runtime/tools/RTRmDir.cpp
@@ -0,0 +1,359 @@
+/* $Id: RTRmDir.cpp $ */
+/** @file
+ * IPRT - Removes directory.
+ */
+
+/*
+ * Copyright (C) 2013-2020 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/path.h>
+#include <iprt/err.h>
+#include <iprt/initterm.h>
+#include <iprt/message.h>
+
+#include <iprt/vfs.h>
+#include <iprt/string.h>
+#include <iprt/stream.h>
+#include <iprt/getopt.h>
+#include <iprt/buildconfig.h>
+
+
+/*********************************************************************************************************************************
+*   Structures and Typedefs                                                                                                      *
+*********************************************************************************************************************************/
+typedef struct RTCMDRMDIROPTS
+{
+    /** -v, --verbose */
+    bool        fVerbose;
+    /** -p, --parents */
+    bool        fParents;
+    /** Don't fail if directories that aren't empty. */
+    bool        fIgnoreNotEmpty;
+    /** Don't fail a directory doesn't exist (i.e. has already been removed). */
+    bool        fIgnoreNonExisting;
+    /** Whether to always use the VFS chain API (for testing). */
+    bool        fAlwaysUseChainApi;
+} RTCMDRMDIROPTS;
+
+
+/**
+ * Create one directory and any missing parent directories.
+ *
+ * @returns exit code
+ * @param   pOpts               The mkdir option.
+ * @param   pszDir              The path to the new directory.
+ */
+static int rtCmdRmDirOneWithParents(RTCMDRMDIROPTS const *pOpts, const char *pszDir)
+{
+    /* We need a copy we can work with here. */
+    char *pszCopy = RTStrDup(pszDir);
+    if (!pszCopy)
+        return RTMsgErrorExitFailure("Out of string memory!");
+
+    int rc;
+    if (!pOpts->fAlwaysUseChainApi && !RTVfsChainIsSpec(pszDir) )
+    {
+        size_t cchCopy = strlen(pszCopy);
+        do
+        {
+            rc = RTDirRemove(pszCopy);
+            if (RT_SUCCESS(rc))
+            {
+                if (pOpts->fVerbose)
+                    RTPrintf("%s\n", pszCopy);
+            }
+            else if ((rc == VERR_PATH_NOT_FOUND || rc == VERR_FILE_NOT_FOUND) && pOpts->fIgnoreNonExisting)
+                rc = VINF_SUCCESS;
+            else
+            {
+                if ((rc == VERR_DIR_NOT_EMPTY || rc == VERR_SHARING_VIOLATION) && pOpts->fIgnoreNotEmpty)
+                    rc = VINF_SUCCESS;
+                else
+                    RTMsgError("Failed to remove directory '%s': %Rrc", pszCopy, rc);
+                break;
+            }
+
+            /* Strip off a component. */
+            while (cchCopy > 0 && RTPATH_IS_SLASH(pszCopy[cchCopy - 1]))
+                cchCopy--;
+            while (cchCopy > 0 && !RTPATH_IS_SLASH(pszCopy[cchCopy - 1]))
+                cchCopy--;
+            while (cchCopy > 0 && RTPATH_IS_SLASH(pszCopy[cchCopy - 1]))
+                cchCopy--;
+            pszCopy[cchCopy] = '\0';
+        } while (cchCopy > 0);
+    }
+    else
+    {
+        /*
+         * Strip the final path element from the pszDir spec.
+         */
+        char       *pszFinalPath;
+        char       *pszSpec;
+        uint32_t    offError;
+        rc = RTVfsChainSplitOffFinalPath(pszCopy, &pszSpec, &pszFinalPath, &offError);
+        if (RT_SUCCESS(rc))
+        {
+            /*
+             * Open the root director/whatever.
+             */
+            RTERRINFOSTATIC ErrInfo;
+            RTVFSDIR hVfsBaseDir;
+            if (pszSpec)
+            {
+                rc = RTVfsChainOpenDir(pszSpec, 0 /*fOpen*/, &hVfsBaseDir, &offError, RTErrInfoInitStatic(&ErrInfo));
+                if (RT_FAILURE(rc))
+                    RTVfsChainMsgError("RTVfsChainOpenDir", pszSpec, rc, offError, &ErrInfo.Core);
+                else if (!pszFinalPath)
+                    pszFinalPath = RTStrEnd(pszSpec, RTSTR_MAX);
+            }
+            else if (!RTPathStartsWithRoot(pszFinalPath))
+            {
+                rc = RTVfsDirOpenNormal(".", 0 /*fOpen*/, &hVfsBaseDir);
+                if (RT_FAILURE(rc))
+                    RTMsgError("Failed to open '.' (for %s): %Rrc", rc, pszFinalPath);
+            }
+            else
+            {
+                char *pszRoot = pszFinalPath;
+                pszFinalPath = RTPathSkipRootSpec(pszFinalPath);
+                char const chSaved = *pszFinalPath;
+                *pszFinalPath = '\0';
+                rc = RTVfsDirOpenNormal(pszRoot, 0 /*fOpen*/, &hVfsBaseDir);
+                *pszFinalPath = chSaved;
+                if (RT_FAILURE(rc))
+                    RTMsgError("Failed to open root dir for '%s': %Rrc", rc, pszRoot);
+            }
+
+            /*
+             * Walk the path component by component, starting at the end.
+             */
+            if (RT_SUCCESS(rc))
+            {
+                size_t cchFinalPath = strlen(pszFinalPath);
+                while (RT_SUCCESS(rc) && cchFinalPath > 0)
+                {
+                    rc = RTVfsDirRemoveDir(hVfsBaseDir, pszFinalPath, 0 /*fFlags*/);
+                    if (RT_SUCCESS(rc))
+                    {
+                        if (pOpts->fVerbose)
+                            RTPrintf("%s\n", pszCopy);
+                    }
+                    else if ((rc == VERR_PATH_NOT_FOUND || rc == VERR_FILE_NOT_FOUND) && pOpts->fIgnoreNonExisting)
+                        rc = VINF_SUCCESS;
+                    else
+                    {
+                        if ((rc == VERR_DIR_NOT_EMPTY || rc == VERR_SHARING_VIOLATION) && pOpts->fIgnoreNotEmpty)
+                            rc = VINF_SUCCESS;
+                        else if (pszSpec)
+                            RTMsgError("Failed to remove directory '%s:%s': %Rrc", pszSpec, pszFinalPath, rc);
+                        else
+                            RTMsgError("Failed to remove directory '%s': %Rrc", pszFinalPath, rc);
+                        break;
+                    }
+
+                    /* Strip off a component. */
+                    while (cchFinalPath > 0 && RTPATH_IS_SLASH(pszFinalPath[cchFinalPath - 1]))
+                        cchFinalPath--;
+                    while (cchFinalPath > 0 && !RTPATH_IS_SLASH(pszFinalPath[cchFinalPath - 1]))
+                        cchFinalPath--;
+                    while (cchFinalPath > 0 && RTPATH_IS_SLASH(pszFinalPath[cchFinalPath - 1]))
+                        cchFinalPath--;
+                    pszFinalPath[cchFinalPath] = '\0';
+                }
+
+                RTVfsDirRelease(hVfsBaseDir);
+            }
+        }
+        else
+            RTVfsChainMsgError("RTVfsChainOpenParentDir", pszCopy, rc, offError, NULL);
+    }
+    RTStrFree(pszCopy);
+    return RT_SUCCESS(rc) ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
+}
+
+
+/**
+ * Removes one directory.
+ *
+ * @returns exit code
+ * @param   pOpts               The mkdir option.
+ * @param   pszDir              The path to the new directory.
+ */
+static RTEXITCODE rtCmdRmDirOne(RTCMDRMDIROPTS const *pOpts, const char *pszDir)
+{
+    int rc;
+    if (!pOpts->fAlwaysUseChainApi && !RTVfsChainIsSpec(pszDir) )
+        rc = RTDirRemove(pszDir);
+    else
+    {
+        RTVFSDIR        hVfsDir;
+        const char     *pszChild;
+        uint32_t        offError;
+        RTERRINFOSTATIC ErrInfo;
+        rc = RTVfsChainOpenParentDir(pszDir, 0 /*fOpen*/, &hVfsDir, &pszChild, &offError, RTErrInfoInitStatic(&ErrInfo));
+        if (RT_SUCCESS(rc))
+        {
+            rc = RTVfsDirRemoveDir(hVfsDir, pszChild, 0 /*fFlags*/);
+            RTVfsDirRelease(hVfsDir);
+        }
+        else
+            return RTVfsChainMsgErrorExitFailure("RTVfsChainOpenParentDir", pszDir, rc, offError, &ErrInfo.Core);
+    }
+    if (RT_SUCCESS(rc))
+    {
+        if (pOpts->fVerbose)
+            RTPrintf("%s\n", pszDir);
+        return RTEXITCODE_SUCCESS;
+    }
+    if ((rc == VERR_DIR_NOT_EMPTY || rc == VERR_SHARING_VIOLATION) && pOpts->fIgnoreNotEmpty)
+        return RTEXITCODE_SUCCESS; /** @todo be verbose about this? */
+    if ((rc == VERR_PATH_NOT_FOUND || rc == VERR_FILE_NOT_FOUND) && pOpts->fIgnoreNonExisting)
+        return RTEXITCODE_SUCCESS; /** @todo be verbose about this? */
+    return RTMsgErrorExitFailure("Failed to remove '%s': %Rrc", pszDir, rc);
+}
+
+
+static RTEXITCODE RTCmdRmDir(unsigned cArgs,  char **papszArgs)
+{
+    /*
+     * Parse the command line.
+     */
+    static const RTGETOPTDEF s_aOptions[] =
+    {
+        /* operations */
+        { "--parents",                  'p', RTGETOPT_REQ_NOTHING },
+        { "--ignore-fail-on-non-empty", 'F', RTGETOPT_REQ_NOTHING },
+        { "--ignore-non-existing",      'E', RTGETOPT_REQ_NOTHING },
+        { "--always-use-vfs-chain-api", 'A', RTGETOPT_REQ_NOTHING },
+        { "--verbose",                  'v', RTGETOPT_REQ_NOTHING },
+    };
+
+    RTGETOPTSTATE GetState;
+    int rc = RTGetOptInit(&GetState, cArgs, papszArgs, s_aOptions, RT_ELEMENTS(s_aOptions), 1,
+                          RTGETOPTINIT_FLAGS_OPTS_FIRST);
+    if (RT_FAILURE(rc))
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTGetOpt failed: %Rrc", rc);
+
+    RTCMDRMDIROPTS Opts;
+    Opts.fVerbose               = false;
+    Opts.fParents               = false;
+    Opts.fIgnoreNotEmpty        = false;
+    Opts.fIgnoreNonExisting     = false;
+    Opts.fAlwaysUseChainApi     = false;
+
+    RTGETOPTUNION ValueUnion;
+    while (   (rc = RTGetOpt(&GetState, &ValueUnion)) != 0
+           && rc != VINF_GETOPT_NOT_OPTION)
+    {
+        switch (rc)
+        {
+            case 'p':
+                Opts.fParents = true;
+                break;
+
+            case 'v':
+                Opts.fVerbose = true;
+                break;
+
+            case 'A':
+                Opts.fAlwaysUseChainApi = true;
+                break;
+
+            case 'E':
+                Opts.fIgnoreNonExisting = true;
+                break;
+
+            case 'F':
+                Opts.fIgnoreNotEmpty = true;
+                break;
+
+            case 'h':
+                RTPrintf("Usage: %s [options] <dir> [..]\n"
+                         "\n"
+                         "Removes empty directories.\n"
+                         "\n"
+                         "Options:\n"
+                         "  -p, --parent\n"
+                         "      Remove specified parent directories too.\n"
+                         "  -F, --ignore-fail-on-non-empty\n"
+                         "      Do not fail if a directory is not empty, just ignore it.\n"
+                         "      This is really handy with the -p option.\n"
+                         "  -E, --ignore-non-existing\n"
+                         "      Do not fail if a specified directory is not there.\n"
+                         "  -v, --verbose\n"
+                         "      Tell which directories get remove.\n"
+                         "  -A, --always-use-vfs-chain-api\n"
+                         "      Always use the VFS API.\n"
+                         , papszArgs[0]);
+                return RTEXITCODE_SUCCESS;
+
+            case 'V':
+                RTPrintf("%sr%d\n", RTBldCfgVersion(), RTBldCfgRevision());
+                return RTEXITCODE_SUCCESS;
+
+            default:
+                return RTGetOptPrintError(rc, &ValueUnion);
+        }
+    }
+
+
+    /*
+     * No files means error.
+     */
+    if (rc != VINF_GETOPT_NOT_OPTION)
+        return RTMsgErrorExit(RTEXITCODE_FAILURE, "No directories specified.\n");
+
+    /*
+     * Work thru the specified dirs.
+     */
+    RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
+    while (rc == VINF_GETOPT_NOT_OPTION)
+    {
+        if (Opts.fParents)
+            rc = rtCmdRmDirOneWithParents(&Opts, ValueUnion.psz);
+        else
+            rc = rtCmdRmDirOne(&Opts, ValueUnion.psz);
+        if (RT_FAILURE(rc))
+            rcExit = RTEXITCODE_FAILURE;
+
+        /* next */
+        rc = RTGetOpt(&GetState, &ValueUnion);
+    }
+    if (rc != 0)
+        rcExit = RTGetOptPrintError(rc, &ValueUnion);
+
+    return rcExit;
+}
+
+
+int main(int argc, char **argv)
+{
+    int rc = RTR3InitExe(argc, &argv, 0);
+    if (RT_FAILURE(rc))
+        return RTMsgInitFailure(rc);
+    return RTCmdRmDir(argc, argv);
+}
+