RTPathRmCmd.cpp@ 84207

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1	/* $Id: RTPathRmCmd.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2	/** @file
3	* IPRT - RM Command.
4	*/
5
6	/*
7	* Copyright (C) 2013-2020 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*********************************************************************************************************************************
29	* Header Files *
30	*********************************************************************************************************************************/
31	#include <iprt/path.h>
32
33	#include <iprt/buildconfig.h>
34	#include <iprt/ctype.h>
35	#include <iprt/err.h>
36	#include <iprt/file.h>
37	#include <iprt/dir.h>
38	#include <iprt/getopt.h>
39	#include <iprt/initterm.h>
40	#include <iprt/message.h>
41	#include <iprt/stream.h>
42	#include <iprt/string.h>
43	#include <iprt/symlink.h>
44
45
46	/*********************************************************************************************************************************
47	* Defined Constants And Macros *
48	*********************************************************************************************************************************/
49	#define RTPATHRMCMD_OPT_INTERACTIVE 1000
50	#define RTPATHRMCMD_OPT_ONE_FILE_SYSTEM 1001
51	#define RTPATHRMCMD_OPT_PRESERVE_ROOT 1002
52	#define RTPATHRMCMD_OPT_NO_PRESERVE_ROOT 1003
53	#define RTPATHRMCMD_OPT_MACHINE_READABLE 1004
54
55	/** The max directory entry size. */
56	#define RTPATHRM_DIR_MAX_ENTRY_SIZE (sizeof(RTDIRENTRYEX) + 4096)
57
58
59	/*********************************************************************************************************************************
60	* Structures and Typedefs *
61	*********************************************************************************************************************************/
62	/** Interactive option. */
63	typedef enum
64	{
65	RTPATHRMCMDINTERACTIVE_NONE = 1,
66	RTPATHRMCMDINTERACTIVE_ALL,
67	RTPATHRMCMDINTERACTIVE_ONCE
68	/** @todo possible that we should by default prompt if removing read-only
69	* files or files owned by someone else. We currently don't. */
70	} RTPATHRMCMDINTERACTIVE;
71
72	/**
73	* IPRT rm option structure.
74	*/
75	typedef struct RTPATHRMCMDOPTS
76	{
77	/** Whether to delete recursively. */
78	bool fRecursive;
79	/** Whether to delete directories as well as other kinds of files. */
80	bool fDirsAndOther;
81	/** Whether to remove files without prompting and ignoring non-existing
82	* files. */
83	bool fForce;
84	/** Machine readable output. */
85	bool fMachineReadable;
86	/** Don't try remove root ('/') if set, otherwise don't treat root specially. */
87	bool fPreserveRoot;
88	/** Whether to keep to one file system. */
89	bool fOneFileSystem;
90	/** Whether to safely delete files (overwrite 3x before unlinking). */
91	bool fSafeDelete;
92	/** Whether to be verbose about the operation. */
93	bool fVerbose;
94	/** The interactive setting. */
95	RTPATHRMCMDINTERACTIVE enmInteractive;
96	} RTPATHRMCMDOPTS;
97	/** Pointer to the IPRT rm options. */
98	typedef RTPATHRMCMDOPTS *PRTPATHRMCMDOPTS;
99
100
101	/*********************************************************************************************************************************
102	* Global Variables *
103	*********************************************************************************************************************************/
104	/** A bunch of zeros. */
105	static uint8_t const g_abZeros[16384] = { 0 };
106	/** A bunch of 0xFF bytes. (lazy init) */
107	static uint8_t g_ab0xFF[16384];
108
109
110	static void rtPathRmVerbose(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
111	{
112	if (!pOpts->fMachineReadable)
113	RTPrintf("%s\n", pszPath);
114	}
115
116
117	static int rtPathRmError(PRTPATHRMCMDOPTS pOpts, const char *pszPath, int rc,
118	const char *pszFormat, ...)
119	{
120	if (pOpts->fMachineReadable)
121	RTPrintf("fname=%s%crc=%d%c", pszPath, 0, rc, 0);
122	else
123	{
124	va_list va;
125	va_start(va, pszFormat);
126	RTMsgErrorV(pszFormat, va);
127	va_end(va);
128	}
129	return rc;
130	}
131
132
133	/**
134	* Worker that removes a symbolic link.
135	*
136	* @returns IPRT status code, errors go via rtPathRmError.
137	* @param pOpts The RM options.
138	* @param pszPath The path to the symbolic link.
139	*/
140	static int rtPathRmOneSymlink(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
141	{
142	if (pOpts->fVerbose)
143	rtPathRmVerbose(pOpts, pszPath);
144	int rc = RTSymlinkDelete(pszPath, 0);
145	if (RT_FAILURE(rc))
146	return rtPathRmError(pOpts, pszPath, rc, "Error removing symbolic link '%s': %Rrc\n", pszPath, rc);
147	return rc;
148	}
149
150
151	/**
152	* Worker that removes a file.
153	*
154	* Currently used to delete both regular and special files.
155	*
156	* @returns IPRT status code, errors go via rtPathRmError.
157	* @param pOpts The RM options.
158	* @param pszPath The path to the file.
159	* @param pObjInfo The FS object info for the file.
160	*/
161	static int rtPathRmOneFile(PRTPATHRMCMDOPTS pOpts, const char *pszPath, PRTFSOBJINFO pObjInfo)
162	{
163	int rc;
164	if (pOpts->fVerbose)
165	rtPathRmVerbose(pOpts, pszPath);
166
167	/*
168	* Wipe the file if requested and possible.
169	*/
170	if (pOpts->fSafeDelete && RTFS_IS_FILE(pObjInfo->Attr.fMode))
171	{
172	/* Lazy init of the 0xff buffer. */
173	if (g_ab0xFF[0] != 0xff \|\| g_ab0xFF[sizeof(g_ab0xFF) - 1] != 0xff)
174	memset(g_ab0xFF, 0xff, sizeof(g_ab0xFF));
175
176	RTFILE hFile;
177	rc = RTFileOpen(&hFile, pszPath, RTFILE_O_WRITE);
178	if (RT_FAILURE(rc))
179	return rtPathRmError(pOpts, pszPath, rc, "Opening '%s' for overwriting: %Rrc\n", pszPath, rc);
180
181	for (unsigned iPass = 0; iPass < 3; iPass++)
182	{
183	uint8_t const *pabFiller = iPass == 1 ? g_abZeros : g_ab0xFF;
184	size_t const cbFiller = iPass == 1 ? sizeof(g_abZeros) : sizeof(g_ab0xFF);
185
186	rc = RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL);
187	if (RT_FAILURE(rc))
188	{
189	rc = rtPathRmError(pOpts, pszPath, rc, "Error seeking to start of '%s': %Rrc\n", pszPath, rc);
190	break;
191	}
192	for (RTFOFF cbLeft = pObjInfo->cbObject; cbLeft > 0; cbLeft -= cbFiller)
193	{
194	size_t cbToWrite = cbFiller;
195	if (cbLeft < (RTFOFF)cbToWrite)
196	cbToWrite = (size_t)cbLeft;
197	rc = RTFileWrite(hFile, pabFiller, cbToWrite, NULL);
198	if (RT_FAILURE(rc))
199	{
200	rc = rtPathRmError(pOpts, pszPath, rc, "Error writing to '%s': %Rrc\n", pszPath, rc);
201	break;
202	}
203	}
204	}
205
206	int rc2 = RTFileClose(hFile);
207	if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
208	return rtPathRmError(pOpts, pszPath, rc2, "Closing '%s' failed: %Rrc\n", pszPath, rc);
209	if (RT_FAILURE(rc))
210	return rc;
211	}
212
213	/*
214	* Remove the file.
215	*/
216	rc = RTFileDelete(pszPath);
217	if (RT_FAILURE(rc))
218	return rtPathRmError(pOpts, pszPath, rc,
219	RTFS_IS_FILE(pObjInfo->Attr.fMode)
220	? "Error removing regular file '%s': %Rrc\n"
221	: "Error removing special file '%s': %Rrc\n",
222	pszPath, rc);
223	return rc;
224	}
225
226
227	/**
228	* Deletes one directory (if it's empty).
229	*
230	* @returns IPRT status code, errors go via rtPathRmError.
231	* @param pOpts The RM options.
232	* @param pszPath The path to the directory.
233	*/
234	static int rtPathRmOneDir(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
235	{
236	if (pOpts->fVerbose)
237	rtPathRmVerbose(pOpts, pszPath);
238
239	int rc = RTDirRemove(pszPath);
240	if (RT_FAILURE(rc))
241	return rtPathRmError(pOpts, pszPath, rc, "Error removing directory '%s': %Rrc", pszPath, rc);
242	return rc;
243	}
244
245
246	/**
247	* Recursively delete a directory.
248	*
249	* @returns IPRT status code, errors go via rtPathRmError.
250	* @param pOpts The RM options.
251	* @param pszPath Pointer to a writable buffer holding the path to
252	* the directory.
253	* @param cchPath The length of the path (avoid strlen).
254	* @param pDirEntry Pointer to a directory entry buffer that is
255	* RTPATHRM_DIR_MAX_ENTRY_SIZE bytes big.
256	*/
257	static int rtPathRmRecursive(PRTPATHRMCMDOPTS pOpts, char *pszPath, size_t cchPath, PRTDIRENTRYEX pDirEntry)
258	{
259	/*
260	* Make sure the path ends with a slash.
261	*/
262	if (!cchPath \|\| !RTPATH_IS_SLASH(pszPath[cchPath - 1]))
263	{
264	if (cchPath + 1 >= RTPATH_MAX)
265	return rtPathRmError(pOpts, pszPath, VERR_BUFFER_OVERFLOW, "Buffer overflow fixing up '%s'.\n", pszPath);
266	pszPath[cchPath++] = RTPATH_SLASH;
267	pszPath[cchPath] = '\0';
268	}
269
270	/*
271	* Traverse the directory.
272	*/
273	RTDIR hDir;
274	int rc = RTDirOpen(&hDir, pszPath);
275	if (RT_FAILURE(rc))
276	return rtPathRmError(pOpts, pszPath, rc, "Error opening directory '%s': %Rrc", pszPath, rc);
277	int rcRet = VINF_SUCCESS;
278	for (;;)
279	{
280	/*
281	* Read the next entry, constructing an full path for it.
282	*/
283	size_t cbEntry = RTPATHRM_DIR_MAX_ENTRY_SIZE;
284	rc = RTDirReadEx(hDir, pDirEntry, &cbEntry, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
285	if (rc == VERR_NO_MORE_FILES)
286	{
287	/*
288	* Reached the end of the directory.
289	*/
290	pszPath[cchPath] = '\0';
291	rc = RTDirClose(hDir);
292	if (RT_FAILURE(rc))
293	return rtPathRmError(pOpts, pszPath, rc, "Error closing directory '%s': %Rrc", pszPath, rc);
294
295	/* Delete the directory. */
296	int rc2 = rtPathRmOneDir(pOpts, pszPath);
297	if (RT_FAILURE(rc2) && RT_SUCCESS(rcRet))
298	return rc2;
299	return rcRet;
300	}
301
302	if (RT_FAILURE(rc))
303	{
304	rc = rtPathRmError(pOpts, pszPath, rc, "Error reading directory '%s': %Rrc", pszPath, rc);
305	break;
306	}
307
308	/* Skip '.' and '..'. */
309	if ( pDirEntry->szName[0] == '.'
310	&& ( pDirEntry->cbName == 1
311	\|\| ( pDirEntry->cbName == 2
312	&& pDirEntry->szName[1] == '.')))
313	continue;
314
315	/* Construct full path. */
316	if (cchPath + pDirEntry->cbName >= RTPATH_MAX)
317	{
318	pszPath[cchPath] = '\0';
319	rc = rtPathRmError(pOpts, pszPath, VERR_BUFFER_OVERFLOW, "Path buffer overflow in directory '%s'.", pszPath);
320	break;
321	}
322	memcpy(pszPath + cchPath, pDirEntry->szName, pDirEntry->cbName + 1);
323
324	/*
325	* Take action according to the type.
326	*/
327	switch (pDirEntry->Info.Attr.fMode & RTFS_TYPE_MASK)
328	{
329	case RTFS_TYPE_FILE:
330	rc = rtPathRmOneFile(pOpts, pszPath, &pDirEntry->Info);
331	break;
332
333	case RTFS_TYPE_DIRECTORY:
334	rc = rtPathRmRecursive(pOpts, pszPath, cchPath + pDirEntry->cbName, pDirEntry);
335	break;
336
337	case RTFS_TYPE_SYMLINK:
338	rc = rtPathRmOneSymlink(pOpts, pszPath);
339	break;
340
341	case RTFS_TYPE_FIFO:
342	case RTFS_TYPE_DEV_CHAR:
343	case RTFS_TYPE_DEV_BLOCK:
344	case RTFS_TYPE_SOCKET:
345	rc = rtPathRmOneFile(pOpts, pszPath, &pDirEntry->Info);
346	break;
347
348	case RTFS_TYPE_WHITEOUT:
349	default:
350	rc = rtPathRmError(pOpts, pszPath, VERR_UNEXPECTED_FS_OBJ_TYPE,
351	"Object '%s' has an unknown file type: %o\n",
352	pszPath, pDirEntry->Info.Attr.fMode & RTFS_TYPE_MASK);
353	break;
354	}
355	if (RT_FAILURE(rc) && RT_SUCCESS(rcRet))
356	rcRet = rc;
357	}
358
359	/*
360	* Some error occured, close and return.
361	*/
362	RTDirClose(hDir);
363	return rc;
364	}
365
366	/**
367	* Validates the specified file or directory.
368	*
369	* @returns IPRT status code, errors go via rtPathRmError.
370	* @param pOpts The RM options.
371	* @param pszPath The path to the file, directory, whatever.
372	*/
373	static int rtPathRmOneValidate(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
374	{
375	/*
376	* RTPathFilename doesn't do the trailing slash thing the way we need it to.
377	* E.g. both '..' and '../' should be rejected.
378	*/
379	size_t cchPath = strlen(pszPath);
380	while (cchPath > 0 && RTPATH_IS_SLASH(pszPath[cchPath - 1]))
381	cchPath--;
382
383	if ( ( cchPath == 0
384	\|\| 0 /** @todo drive letter + UNC crap */)
385	&& pOpts->fPreserveRoot)
386	return rtPathRmError(pOpts, pszPath, VERR_CANT_DELETE_DIRECTORY, "Cannot remove root directory ('%s').\n", pszPath);
387
388	size_t offLast = cchPath - 1;
389	while (offLast > 0 && !RTPATH_IS_SEP(pszPath[offLast - 1]))
390	offLast--;
391
392	size_t cchLast = cchPath - offLast;
393	if ( pszPath[offLast] == '.'
394	&& ( cchLast == 1
395	\|\| (cchLast == 2 && pszPath[offLast + 1] == '.')))
396	return rtPathRmError(pOpts, pszPath, VERR_CANT_DELETE_DIRECTORY, "Cannot remove special directory '%s'.\n", pszPath);
397
398	return VINF_SUCCESS;
399	}
400
401
402	/**
403	* Remove one user specified file or directory.
404	*
405	* @returns IPRT status code, errors go via rtPathRmError.
406	* @param pOpts The RM options.
407	* @param pszPath The path to the file, directory, whatever.
408	*/
409	static int rtPathRmOne(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
410	{
411	/*
412	* RM refuses to delete some directories.
413	*/
414	int rc = rtPathRmOneValidate(pOpts, pszPath);
415	if (RT_FAILURE(rc))
416	return rc;
417
418	/*
419	* Query file system object info.
420	*/
421	RTFSOBJINFO ObjInfo;
422	rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK);
423	if (RT_FAILURE(rc))
424	{
425	if (pOpts->fForce && (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND))
426	return VINF_SUCCESS;
427	return rtPathRmError(pOpts, pszPath, rc, "Error deleting '%s': %Rrc", pszPath, rc);
428	}
429
430	/*
431	* Take type specific action.
432	*/
433	switch (ObjInfo.Attr.fMode & RTFS_TYPE_MASK)
434	{
435	case RTFS_TYPE_FILE:
436	return rtPathRmOneFile(pOpts, pszPath, &ObjInfo);
437
438	case RTFS_TYPE_DIRECTORY:
439	if (pOpts->fRecursive)
440	{
441	char szPath[RTPATH_MAX];
442	rc = RTPathAbs(pszPath, szPath, sizeof(szPath));
443	if (RT_FAILURE(rc))
444	return rtPathRmError(pOpts, pszPath, rc, "RTPathAbs failed on '%s': %Rrc\n", pszPath, rc);
445
446	union
447	{
448	RTDIRENTRYEX Core;
449	uint8_t abPadding[RTPATHRM_DIR_MAX_ENTRY_SIZE];
450	} DirEntry;
451
452	return rtPathRmRecursive(pOpts, szPath, strlen(szPath), &DirEntry.Core);
453	}
454	if (pOpts->fDirsAndOther)
455	return rtPathRmOneDir(pOpts, pszPath);
456	return rtPathRmError(pOpts, pszPath, VERR_IS_A_DIRECTORY, "Cannot remove '%s': %Rrc\n", pszPath, VERR_IS_A_DIRECTORY);
457
458	case RTFS_TYPE_SYMLINK:
459	return rtPathRmOneSymlink(pOpts, pszPath);
460
461	case RTFS_TYPE_FIFO:
462	case RTFS_TYPE_DEV_CHAR:
463	case RTFS_TYPE_DEV_BLOCK:
464	case RTFS_TYPE_SOCKET:
465	return rtPathRmOneFile(pOpts, pszPath, &ObjInfo);
466
467	case RTFS_TYPE_WHITEOUT:
468	default:
469	return rtPathRmError(pOpts, pszPath, VERR_UNEXPECTED_FS_OBJ_TYPE,
470	"Object '%s' has an unknown file type: %o\n", pszPath, ObjInfo.Attr.fMode & RTFS_TYPE_MASK);
471
472	}
473	}
474
475
476	RTDECL(RTEXITCODE) RTPathRmCmd(unsigned cArgs, char **papszArgs)
477	{
478	/*
479	* Parse the command line.
480	*/
481	static const RTGETOPTDEF s_aOptions[] =
482	{
483	/* operations */
484	{ "--dirs-and-more", 'd', RTGETOPT_REQ_NOTHING },
485	{ "--force", 'f', RTGETOPT_REQ_NOTHING },
486	{ "--prompt", 'i', RTGETOPT_REQ_NOTHING },
487	{ "--prompt-once", 'I', RTGETOPT_REQ_NOTHING },
488	{ "--interactive", RTPATHRMCMD_OPT_INTERACTIVE, RTGETOPT_REQ_STRING },
489	{ "--one-file-system", RTPATHRMCMD_OPT_ONE_FILE_SYSTEM, RTGETOPT_REQ_NOTHING },
490	{ "--preserve-root", RTPATHRMCMD_OPT_PRESERVE_ROOT, RTGETOPT_REQ_NOTHING },
491	{ "--no-preserve-root", RTPATHRMCMD_OPT_NO_PRESERVE_ROOT, RTGETOPT_REQ_NOTHING },
492	{ "--recursive", 'R', RTGETOPT_REQ_NOTHING },
493	{ "--recursive", 'r', RTGETOPT_REQ_NOTHING },
494	{ "--safe-delete", 'P', RTGETOPT_REQ_NOTHING },
495	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
496
497	/* IPRT extensions */
498	{ "--machine-readable", RTPATHRMCMD_OPT_MACHINE_READABLE, RTGETOPT_REQ_NOTHING },
499	{ "--machinereadable", RTPATHRMCMD_OPT_MACHINE_READABLE, RTGETOPT_REQ_NOTHING }, /* bad long option style */
500	};
501
502	RTGETOPTSTATE GetState;
503	int rc = RTGetOptInit(&GetState, cArgs, papszArgs, s_aOptions, RT_ELEMENTS(s_aOptions), 1,
504	RTGETOPTINIT_FLAGS_OPTS_FIRST);
505	if (RT_FAILURE(rc))
506	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTGetOpt failed: %Rrc", rc);
507
508	RTPATHRMCMDOPTS Opts;
509	RT_ZERO(Opts);
510	Opts.fPreserveRoot = true;
511	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_NONE;
512
513	RTGETOPTUNION ValueUnion;
514	while ( (rc = RTGetOpt(&GetState, &ValueUnion)) != 0
515	&& rc != VINF_GETOPT_NOT_OPTION)
516	{
517	switch (rc)
518	{
519	case 'd':
520	Opts.fDirsAndOther = true;
521	break;
522
523	case 'f':
524	Opts.fForce = true;
525	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_NONE;
526	break;
527
528	case 'i':
529	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ALL;
530	break;
531
532	case 'I':
533	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ONCE;
534	break;
535
536	case RTPATHRMCMD_OPT_INTERACTIVE:
537	if (!strcmp(ValueUnion.psz, "always"))
538	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ALL;
539	else if (!strcmp(ValueUnion.psz, "once"))
540	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ONCE;
541	else
542	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "Unknown --interactive option value: '%s'\n", ValueUnion.psz);
543	break;
544
545	case RTPATHRMCMD_OPT_ONE_FILE_SYSTEM:
546	Opts.fOneFileSystem = true;
547	break;
548
549	case RTPATHRMCMD_OPT_PRESERVE_ROOT:
550	Opts.fPreserveRoot = true;
551	break;
552
553	case RTPATHRMCMD_OPT_NO_PRESERVE_ROOT:
554	Opts.fPreserveRoot = false;
555	break;
556
557	case 'R':
558	case 'r':
559	Opts.fRecursive = true;
560	Opts.fDirsAndOther = true;
561	break;
562
563	case 'P':
564	Opts.fSafeDelete = true;
565	break;
566
567	case 'v':
568	Opts.fVerbose = true;
569	break;
570
571	case RTPATHRMCMD_OPT_MACHINE_READABLE:
572	Opts.fMachineReadable = true;
573	break;
574
575	case 'h':
576	RTPrintf("Usage: to be written\nOption dump:\n");
577	for (unsigned i = 0; i < RT_ELEMENTS(s_aOptions); i++)
578	if (RT_C_IS_PRINT(s_aOptions[i].iShort))
579	RTPrintf(" -%c,%s\n", s_aOptions[i].iShort, s_aOptions[i].pszLong);
580	else
581	RTPrintf(" %s\n", s_aOptions[i].pszLong);
582	return RTEXITCODE_SUCCESS;
583
584	case 'V':
585	RTPrintf("%sr%d\n", RTBldCfgVersion(), RTBldCfgRevision());
586	return RTEXITCODE_SUCCESS;
587
588	default:
589	return RTGetOptPrintError(rc, &ValueUnion);
590	}
591	}
592
593	/*
594	* Options we don't support.
595	*/
596	if (Opts.fOneFileSystem)
597	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The --one-file-system option is not yet implemented.\n");
598	if (Opts.enmInteractive != RTPATHRMCMDINTERACTIVE_NONE)
599	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The -i, -I and --interactive options are not implemented yet.\n");
600
601	/*
602	* No files means error.
603	*/
604	if (rc != VINF_GETOPT_NOT_OPTION && !Opts.fForce)
605	return RTMsgErrorExit(RTEXITCODE_FAILURE, "No files or directories specified.\n");
606
607	/*
608	* Machine readable init + header.
609	*/
610	if (Opts.fMachineReadable)
611	{
612	int rc2 = RTStrmSetMode(g_pStdOut, true /fBinary/, false /fCurrentCodeSet/);
613	if (RT_FAILURE(rc2))
614	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTStrmSetMode failed: %Rrc.\n", rc2);
615	static const char s_achHeader[] = "hdr_id=rm\0hdr_ver=1";
616	RTStrmWrite(g_pStdOut, s_achHeader, sizeof(s_achHeader));
617	}
618
619	/*
620	* Delete the specified files/dirs/whatever.
621	*/
622	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
623	while (rc == VINF_GETOPT_NOT_OPTION)
624	{
625	rc = rtPathRmOne(&Opts, ValueUnion.psz);
626	if (RT_FAILURE(rc))
627	rcExit = RTEXITCODE_FAILURE;
628
629	/* next */
630	rc = RTGetOpt(&GetState, &ValueUnion);
631	}
632	if (rc != 0)
633	rcExit = RTGetOptPrintError(rc, &ValueUnion);
634
635	/*
636	* Terminate the machine readable stuff.
637	*/
638	if (Opts.fMachineReadable)
639	{
640	RTStrmWrite(g_pStdOut, "\0\0\0", 4);
641	rc = RTStrmFlush(g_pStdOut);
642	if (RT_FAILURE(rc) && rcExit == RTEXITCODE_SUCCESS)
643	rcExit = RTEXITCODE_FAILURE;
644	}
645
646	return rcExit;
647	}
648

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source: vbox/trunk/src/VBox/Runtime/common/path/RTPathRmCmd.cpp@ 84207

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