RTPathRmCmd.cpp@ 71916

Last change on this file since 71916 was 71217, checked in by vboxsync, 7 years ago
IPRT/RTPathRmCmd.cpp: Fixed running with "--machinereadable" / "--machine-readable" options.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 22.5 KB

Line
1	/* $Id: RTPathRmCmd.cpp 71217 2018-03-05 21:06:41Z vboxsync $ */
2	/** @file
3	* IPRT - RM Command.
4	*/
5
6	/*
7	* Copyright (C) 2013-2018 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/file.h>
36	#include <iprt/dir.h>
37	#include <iprt/getopt.h>
38	#include <iprt/initterm.h>
39	#include <iprt/message.h>
40	#include <iprt/stream.h>
41	#include <iprt/string.h>
42	#include <iprt/symlink.h>
43
44
45	/*********************************************************************************************************************************
46	* Defined Constants And Macros *
47	*********************************************************************************************************************************/
48	#define RTPATHRMCMD_OPT_INTERACTIVE 1000
49	#define RTPATHRMCMD_OPT_ONE_FILE_SYSTEM 1001
50	#define RTPATHRMCMD_OPT_PRESERVE_ROOT 1002
51	#define RTPATHRMCMD_OPT_NO_PRESERVE_ROOT 1003
52	#define RTPATHRMCMD_OPT_MACHINE_READABLE 1004
53
54	/** The max directory entry size. */
55	#define RTPATHRM_DIR_MAX_ENTRY_SIZE (sizeof(RTDIRENTRYEX) + 4096)
56
57
58	/*********************************************************************************************************************************
59	* Structures and Typedefs *
60	*********************************************************************************************************************************/
61	/** Interactive option. */
62	typedef enum
63	{
64	RTPATHRMCMDINTERACTIVE_NONE = 1,
65	RTPATHRMCMDINTERACTIVE_ALL,
66	RTPATHRMCMDINTERACTIVE_ONCE
67	/** @todo possible that we should by default prompt if removing read-only
68	* files or files owned by someone else. We currently don't. */
69	} RTPATHRMCMDINTERACTIVE;
70
71	/**
72	* IPRT rm option structure.
73	*/
74	typedef struct RTPATHRMCMDOPTS
75	{
76	/** Whether to delete recursively. */
77	bool fRecursive;
78	/** Whether to delete directories as well as other kinds of files. */
79	bool fDirsAndOther;
80	/** Whether to remove files without prompting and ignoring non-existing
81	* files. */
82	bool fForce;
83	/** Machine readable output. */
84	bool fMachineReadable;
85	/** Don't try remove root ('/') if set, otherwise don't treat root specially. */
86	bool fPreserveRoot;
87	/** Whether to keep to one file system. */
88	bool fOneFileSystem;
89	/** Whether to safely delete files (overwrite 3x before unlinking). */
90	bool fSafeDelete;
91	/** Whether to be verbose about the operation. */
92	bool fVerbose;
93	/** The interactive setting. */
94	RTPATHRMCMDINTERACTIVE enmInteractive;
95	} RTPATHRMCMDOPTS;
96	/** Pointer to the IPRT rm options. */
97	typedef RTPATHRMCMDOPTS *PRTPATHRMCMDOPTS;
98
99
100	/*********************************************************************************************************************************
101	* Global Variables *
102	*********************************************************************************************************************************/
103	/** A bunch of zeros. */
104	static uint8_t const g_abZeros[16384] = { 0 };
105	/** A bunch of 0xFF bytes. (lazy init) */
106	static uint8_t g_ab0xFF[16384];
107
108
109	static void rtPathRmVerbose(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
110	{
111	if (!pOpts->fMachineReadable)
112	RTPrintf("%s\n", pszPath);
113	}
114
115
116	static int rtPathRmError(PRTPATHRMCMDOPTS pOpts, const char *pszPath, int rc,
117	const char *pszFormat, ...)
118	{
119	if (pOpts->fMachineReadable)
120	RTPrintf("fname=%s%crc=%d%c", pszPath, 0, rc, 0);
121	else
122	{
123	va_list va;
124	va_start(va, pszFormat);
125	RTMsgErrorV(pszFormat, va);
126	va_end(va);
127	}
128	return rc;
129	}
130
131
132	/**
133	* Worker that removes a symbolic link.
134	*
135	* @returns IPRT status code, errors go via rtPathRmError.
136	* @param pOpts The RM options.
137	* @param pszPath The path to the symbolic link.
138	*/
139	static int rtPathRmOneSymlink(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
140	{
141	if (pOpts->fVerbose)
142	rtPathRmVerbose(pOpts, pszPath);
143	int rc = RTSymlinkDelete(pszPath, 0);
144	if (RT_FAILURE(rc))
145	return rtPathRmError(pOpts, pszPath, rc, "Error removing symbolic link '%s': %Rrc\n", pszPath, rc);
146	return rc;
147	}
148
149
150	/**
151	* Worker that removes a file.
152	*
153	* Currently used to delete both regular and special files.
154	*
155	* @returns IPRT status code, errors go via rtPathRmError.
156	* @param pOpts The RM options.
157	* @param pszPath The path to the file.
158	* @param pObjInfo The FS object info for the file.
159	*/
160	static int rtPathRmOneFile(PRTPATHRMCMDOPTS pOpts, const char *pszPath, PRTFSOBJINFO pObjInfo)
161	{
162	int rc;
163	if (pOpts->fVerbose)
164	rtPathRmVerbose(pOpts, pszPath);
165
166	/*
167	* Wipe the file if requested and possible.
168	*/
169	if (pOpts->fSafeDelete && RTFS_IS_FILE(pObjInfo->Attr.fMode))
170	{
171	/* Lazy init of the 0xff buffer. */
172	if (g_ab0xFF[0] != 0xff \|\| g_ab0xFF[sizeof(g_ab0xFF) - 1] != 0xff)
173	memset(g_ab0xFF, 0xff, sizeof(g_ab0xFF));
174
175	RTFILE hFile;
176	rc = RTFileOpen(&hFile, pszPath, RTFILE_O_WRITE);
177	if (RT_FAILURE(rc))
178	return rtPathRmError(pOpts, pszPath, rc, "Opening '%s' for overwriting: %Rrc\n", pszPath, rc);
179
180	for (unsigned iPass = 0; iPass < 3; iPass++)
181	{
182	uint8_t const *pabFiller = iPass == 1 ? g_abZeros : g_ab0xFF;
183	size_t const cbFiller = iPass == 1 ? sizeof(g_abZeros) : sizeof(g_ab0xFF);
184
185	rc = RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL);
186	if (RT_FAILURE(rc))
187	{
188	rc = rtPathRmError(pOpts, pszPath, rc, "Error seeking to start of '%s': %Rrc\n", pszPath, rc);
189	break;
190	}
191	for (RTFOFF cbLeft = pObjInfo->cbObject; cbLeft > 0; cbLeft -= cbFiller)
192	{
193	size_t cbToWrite = cbFiller;
194	if (cbLeft < (RTFOFF)cbToWrite)
195	cbToWrite = (size_t)cbLeft;
196	rc = RTFileWrite(hFile, pabFiller, cbToWrite, NULL);
197	if (RT_FAILURE(rc))
198	{
199	rc = rtPathRmError(pOpts, pszPath, rc, "Error writing to '%s': %Rrc\n", pszPath, rc);
200	break;
201	}
202	}
203	}
204
205	int rc2 = RTFileClose(hFile);
206	if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
207	return rtPathRmError(pOpts, pszPath, rc2, "Closing '%s' failed: %Rrc\n", pszPath, rc);
208	if (RT_FAILURE(rc))
209	return rc;
210	}
211
212	/*
213	* Remove the file.
214	*/
215	rc = RTFileDelete(pszPath);
216	if (RT_FAILURE(rc))
217	return rtPathRmError(pOpts, pszPath, rc,
218	RTFS_IS_FILE(pObjInfo->Attr.fMode)
219	? "Error removing regular file '%s': %Rrc\n"
220	: "Error removing special file '%s': %Rrc\n",
221	pszPath, rc);
222	return rc;
223	}
224
225
226	/**
227	* Deletes one directory (if it's empty).
228	*
229	* @returns IPRT status code, errors go via rtPathRmError.
230	* @param pOpts The RM options.
231	* @param pszPath The path to the directory.
232	*/
233	static int rtPathRmOneDir(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
234	{
235	if (pOpts->fVerbose)
236	rtPathRmVerbose(pOpts, pszPath);
237
238	int rc = RTDirRemove(pszPath);
239	if (RT_FAILURE(rc))
240	return rtPathRmError(pOpts, pszPath, rc, "Error removing directory '%s': %Rrc", pszPath, rc);
241	return rc;
242	}
243
244
245	/**
246	* Recursively delete a directory.
247	*
248	* @returns IPRT status code, errors go via rtPathRmError.
249	* @param pOpts The RM options.
250	* @param pszPath Pointer to a writable buffer holding the path to
251	* the directory.
252	* @param cchPath The length of the path (avoid strlen).
253	* @param pDirEntry Pointer to a directory entry buffer that is
254	* RTPATHRM_DIR_MAX_ENTRY_SIZE bytes big.
255	*/
256	static int rtPathRmRecursive(PRTPATHRMCMDOPTS pOpts, char *pszPath, size_t cchPath, PRTDIRENTRYEX pDirEntry)
257	{
258	/*
259	* Make sure the path ends with a slash.
260	*/
261	if (!cchPath \|\| !RTPATH_IS_SLASH(pszPath[cchPath - 1]))
262	{
263	if (cchPath + 1 >= RTPATH_MAX)
264	return rtPathRmError(pOpts, pszPath, VERR_BUFFER_OVERFLOW, "Buffer overflow fixing up '%s'.\n", pszPath);
265	pszPath[cchPath++] = RTPATH_SLASH;
266	pszPath[cchPath] = '\0';
267	}
268
269	/*
270	* Traverse the directory.
271	*/
272	RTDIR hDir;
273	int rc = RTDirOpen(&hDir, pszPath);
274	if (RT_FAILURE(rc))
275	return rtPathRmError(pOpts, pszPath, rc, "Error opening directory '%s': %Rrc", pszPath, rc);
276	int rcRet = VINF_SUCCESS;
277	for (;;)
278	{
279	/*
280	* Read the next entry, constructing an full path for it.
281	*/
282	size_t cbEntry = RTPATHRM_DIR_MAX_ENTRY_SIZE;
283	rc = RTDirReadEx(hDir, pDirEntry, &cbEntry, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
284	if (rc == VERR_NO_MORE_FILES)
285	{
286	/*
287	* Reached the end of the directory.
288	*/
289	pszPath[cchPath] = '\0';
290	rc = RTDirClose(hDir);
291	if (RT_FAILURE(rc))
292	return rtPathRmError(pOpts, pszPath, rc, "Error closing directory '%s': %Rrc", pszPath, rc);
293
294	/* Delete the directory. */
295	int rc2 = rtPathRmOneDir(pOpts, pszPath);
296	if (RT_FAILURE(rc2) && RT_SUCCESS(rcRet))
297	return rc2;
298	return rcRet;
299	}
300
301	if (RT_FAILURE(rc))
302	{
303	rc = rtPathRmError(pOpts, pszPath, rc, "Error reading directory '%s': %Rrc", pszPath, rc);
304	break;
305	}
306
307	/* Skip '.' and '..'. */
308	if ( pDirEntry->szName[0] == '.'
309	&& ( pDirEntry->cbName == 1
310	\|\| ( pDirEntry->cbName == 2
311	&& pDirEntry->szName[1] == '.')))
312	continue;
313
314	/* Construct full path. */
315	if (cchPath + pDirEntry->cbName >= RTPATH_MAX)
316	{
317	pszPath[cchPath] = '\0';
318	rc = rtPathRmError(pOpts, pszPath, VERR_BUFFER_OVERFLOW, "Path buffer overflow in directory '%s'.", pszPath);
319	break;
320	}
321	memcpy(pszPath + cchPath, pDirEntry->szName, pDirEntry->cbName + 1);
322
323	/*
324	* Take action according to the type.
325	*/
326	switch (pDirEntry->Info.Attr.fMode & RTFS_TYPE_MASK)
327	{
328	case RTFS_TYPE_FILE:
329	rc = rtPathRmOneFile(pOpts, pszPath, &pDirEntry->Info);
330	break;
331
332	case RTFS_TYPE_DIRECTORY:
333	rc = rtPathRmRecursive(pOpts, pszPath, cchPath + pDirEntry->cbName, pDirEntry);
334	break;
335
336	case RTFS_TYPE_SYMLINK:
337	rc = rtPathRmOneSymlink(pOpts, pszPath);
338	break;
339
340	case RTFS_TYPE_FIFO:
341	case RTFS_TYPE_DEV_CHAR:
342	case RTFS_TYPE_DEV_BLOCK:
343	case RTFS_TYPE_SOCKET:
344	rc = rtPathRmOneFile(pOpts, pszPath, &pDirEntry->Info);
345	break;
346
347	case RTFS_TYPE_WHITEOUT:
348	default:
349	rc = rtPathRmError(pOpts, pszPath, VERR_UNEXPECTED_FS_OBJ_TYPE,
350	"Object '%s' has an unknown file type: %o\n",
351	pszPath, pDirEntry->Info.Attr.fMode & RTFS_TYPE_MASK);
352	break;
353	}
354	if (RT_FAILURE(rc) && RT_SUCCESS(rcRet))
355	rcRet = rc;
356	}
357
358	/*
359	* Some error occured, close and return.
360	*/
361	RTDirClose(hDir);
362	return rc;
363	}
364
365	/**
366	* Validates the specified file or directory.
367	*
368	* @returns IPRT status code, errors go via rtPathRmError.
369	* @param pOpts The RM options.
370	* @param pszPath The path to the file, directory, whatever.
371	*/
372	static int rtPathRmOneValidate(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
373	{
374	/*
375	* RTPathFilename doesn't do the trailing slash thing the way we need it to.
376	* E.g. both '..' and '../' should be rejected.
377	*/
378	size_t cchPath = strlen(pszPath);
379	while (cchPath > 0 && RTPATH_IS_SLASH(pszPath[cchPath - 1]))
380	cchPath--;
381
382	if ( ( cchPath == 0
383	\|\| 0 /** @todo drive letter + UNC crap */)
384	&& pOpts->fPreserveRoot)
385	return rtPathRmError(pOpts, pszPath, VERR_CANT_DELETE_DIRECTORY, "Cannot remove root directory ('%s').\n", pszPath);
386
387	size_t offLast = cchPath - 1;
388	while (offLast > 0 && !RTPATH_IS_SEP(pszPath[offLast - 1]))
389	offLast--;
390
391	size_t cchLast = cchPath - offLast;
392	if ( pszPath[offLast] == '.'
393	&& ( cchLast == 1
394	\|\| (cchLast == 2 && pszPath[offLast + 1] == '.')))
395	return rtPathRmError(pOpts, pszPath, VERR_CANT_DELETE_DIRECTORY, "Cannot remove special directory '%s'.\n", pszPath);
396
397	return VINF_SUCCESS;
398	}
399
400
401	/**
402	* Remove one user specified file or directory.
403	*
404	* @returns IPRT status code, errors go via rtPathRmError.
405	* @param pOpts The RM options.
406	* @param pszPath The path to the file, directory, whatever.
407	*/
408	static int rtPathRmOne(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
409	{
410	/*
411	* RM refuses to delete some directories.
412	*/
413	int rc = rtPathRmOneValidate(pOpts, pszPath);
414	if (RT_FAILURE(rc))
415	return rc;
416
417	/*
418	* Query file system object info.
419	*/
420	RTFSOBJINFO ObjInfo;
421	rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK);
422	if (RT_FAILURE(rc))
423	{
424	if (pOpts->fForce && (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND))
425	return VINF_SUCCESS;
426	return rtPathRmError(pOpts, pszPath, rc, "Error deleting '%s': %Rrc", pszPath, rc);
427	}
428
429	/*
430	* Take type specific action.
431	*/
432	switch (ObjInfo.Attr.fMode & RTFS_TYPE_MASK)
433	{
434	case RTFS_TYPE_FILE:
435	return rtPathRmOneFile(pOpts, pszPath, &ObjInfo);
436
437	case RTFS_TYPE_DIRECTORY:
438	if (pOpts->fRecursive)
439	{
440	char szPath[RTPATH_MAX];
441	rc = RTPathAbs(pszPath, szPath, sizeof(szPath));
442	if (RT_FAILURE(rc))
443	return rtPathRmError(pOpts, pszPath, rc, "RTPathAbs failed on '%s': %Rrc\n", pszPath, rc);
444
445	union
446	{
447	RTDIRENTRYEX Core;
448	uint8_t abPadding[RTPATHRM_DIR_MAX_ENTRY_SIZE];
449	} DirEntry;
450
451	return rtPathRmRecursive(pOpts, szPath, strlen(szPath), &DirEntry.Core);
452	}
453	if (pOpts->fDirsAndOther)
454	return rtPathRmOneDir(pOpts, pszPath);
455	return rtPathRmError(pOpts, pszPath, VERR_IS_A_DIRECTORY, "Cannot remove '%s': %Rrc\n", pszPath, VERR_IS_A_DIRECTORY);
456
457	case RTFS_TYPE_SYMLINK:
458	return rtPathRmOneSymlink(pOpts, pszPath);
459
460	case RTFS_TYPE_FIFO:
461	case RTFS_TYPE_DEV_CHAR:
462	case RTFS_TYPE_DEV_BLOCK:
463	case RTFS_TYPE_SOCKET:
464	return rtPathRmOneFile(pOpts, pszPath, &ObjInfo);
465
466	case RTFS_TYPE_WHITEOUT:
467	default:
468	return rtPathRmError(pOpts, pszPath, VERR_UNEXPECTED_FS_OBJ_TYPE,
469	"Object '%s' has an unknown file type: %o\n", pszPath, ObjInfo.Attr.fMode & RTFS_TYPE_MASK);
470
471	}
472	}
473
474
475	RTDECL(RTEXITCODE) RTPathRmCmd(unsigned cArgs, char **papszArgs)
476	{
477	/*
478	* Parse the command line.
479	*/
480	static const RTGETOPTDEF s_aOptions[] =
481	{
482	/* operations */
483	{ "--dirs-and-more", 'd', RTGETOPT_REQ_NOTHING },
484	{ "--force", 'f', RTGETOPT_REQ_NOTHING },
485	{ "--prompt", 'i', RTGETOPT_REQ_NOTHING },
486	{ "--prompt-once", 'I', RTGETOPT_REQ_NOTHING },
487	{ "--interactive", RTPATHRMCMD_OPT_INTERACTIVE, RTGETOPT_REQ_STRING },
488	{ "--one-file-system", RTPATHRMCMD_OPT_ONE_FILE_SYSTEM, RTGETOPT_REQ_NOTHING },
489	{ "--preserve-root", RTPATHRMCMD_OPT_PRESERVE_ROOT, RTGETOPT_REQ_NOTHING },
490	{ "--no-preserve-root", RTPATHRMCMD_OPT_NO_PRESERVE_ROOT, RTGETOPT_REQ_NOTHING },
491	{ "--recursive", 'R', RTGETOPT_REQ_NOTHING },
492	{ "--recursive", 'r', RTGETOPT_REQ_NOTHING },
493	{ "--safe-delete", 'P', RTGETOPT_REQ_NOTHING },
494	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
495
496	/* IPRT extensions */
497	{ "--machine-readable", RTPATHRMCMD_OPT_MACHINE_READABLE, RTGETOPT_REQ_NOTHING },
498	{ "--machinereadable", RTPATHRMCMD_OPT_MACHINE_READABLE, RTGETOPT_REQ_NOTHING }, /* bad long option style */
499	};
500
501	RTGETOPTSTATE GetState;
502	int rc = RTGetOptInit(&GetState, cArgs, papszArgs, s_aOptions, RT_ELEMENTS(s_aOptions), 1,
503	RTGETOPTINIT_FLAGS_OPTS_FIRST);
504	if (RT_FAILURE(rc))
505	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTGetOpt failed: %Rrc", rc);
506
507	RTPATHRMCMDOPTS Opts;
508	RT_ZERO(Opts);
509	Opts.fPreserveRoot = true;
510	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_NONE;
511
512	RTGETOPTUNION ValueUnion;
513	while ( (rc = RTGetOpt(&GetState, &ValueUnion)) != 0
514	&& rc != VINF_GETOPT_NOT_OPTION)
515	{
516	switch (rc)
517	{
518	case 'd':
519	Opts.fDirsAndOther = true;
520	break;
521
522	case 'f':
523	Opts.fForce = true;
524	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_NONE;
525	break;
526
527	case 'i':
528	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ALL;
529	break;
530
531	case 'I':
532	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ONCE;
533	break;
534
535	case RTPATHRMCMD_OPT_INTERACTIVE:
536	if (!strcmp(ValueUnion.psz, "always"))
537	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ALL;
538	else if (!strcmp(ValueUnion.psz, "once"))
539	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ONCE;
540	else
541	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "Unknown --interactive option value: '%s'\n", ValueUnion.psz);
542	break;
543
544	case RTPATHRMCMD_OPT_ONE_FILE_SYSTEM:
545	Opts.fOneFileSystem = true;
546	break;
547
548	case RTPATHRMCMD_OPT_PRESERVE_ROOT:
549	Opts.fPreserveRoot = true;
550	break;
551
552	case RTPATHRMCMD_OPT_NO_PRESERVE_ROOT:
553	Opts.fPreserveRoot = false;
554	break;
555
556	case 'R':
557	case 'r':
558	Opts.fRecursive = true;
559	Opts.fDirsAndOther = true;
560	break;
561
562	case 'P':
563	Opts.fSafeDelete = true;
564	break;
565
566	case 'v':
567	Opts.fVerbose = true;
568	break;
569
570	case RTPATHRMCMD_OPT_MACHINE_READABLE:
571	Opts.fMachineReadable = true;
572	break;
573
574	case 'h':
575	RTPrintf("Usage: to be written\nOption dump:\n");
576	for (unsigned i = 0; i < RT_ELEMENTS(s_aOptions); i++)
577	if (RT_C_IS_PRINT(s_aOptions[i].iShort))
578	RTPrintf(" -%c,%s\n", s_aOptions[i].iShort, s_aOptions[i].pszLong);
579	else
580	RTPrintf(" %s\n", s_aOptions[i].pszLong);
581	return RTEXITCODE_SUCCESS;
582
583	case 'V':
584	RTPrintf("%sr%d\n", RTBldCfgVersion(), RTBldCfgRevision());
585	return RTEXITCODE_SUCCESS;
586
587	default:
588	return RTGetOptPrintError(rc, &ValueUnion);
589	}
590	}
591
592	/*
593	* Options we don't support.
594	*/
595	if (Opts.fOneFileSystem)
596	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The --one-file-system option is not yet implemented.\n");
597	if (Opts.enmInteractive != RTPATHRMCMDINTERACTIVE_NONE)
598	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The -i, -I and --interactive options are not implemented yet.\n");
599
600	/*
601	* No files means error.
602	*/
603	if (rc != VINF_GETOPT_NOT_OPTION && !Opts.fForce)
604	return RTMsgErrorExit(RTEXITCODE_FAILURE, "No files or directories specified.\n");
605
606	/*
607	* Machine readable init + header.
608	*/
609	if (Opts.fMachineReadable)
610	{
611	int rc2 = RTStrmSetMode(g_pStdOut, true /fBinary/, false /fCurrentCodeSet/);
612	if (RT_FAILURE(rc2))
613	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTStrmSetMode failed: %Rrc.\n", rc2);
614	static const char s_achHeader[] = "hdr_id=rm\0hdr_ver=1";
615	RTStrmWrite(g_pStdOut, s_achHeader, sizeof(s_achHeader));
616	}
617
618	/*
619	* Delete the specified files/dirs/whatever.
620	*/
621	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
622	while (rc == VINF_GETOPT_NOT_OPTION)
623	{
624	rc = rtPathRmOne(&Opts, ValueUnion.psz);
625	if (RT_FAILURE(rc))
626	rcExit = RTEXITCODE_FAILURE;
627
628	/* next */
629	rc = RTGetOpt(&GetState, &ValueUnion);
630	}
631	if (rc != 0)
632	rcExit = RTGetOptPrintError(rc, &ValueUnion);
633
634	/*
635	* Terminate the machine readable stuff.
636	*/
637	if (Opts.fMachineReadable)
638	{
639	RTStrmWrite(g_pStdOut, "\0\0\0", 4);
640	rc = RTStrmFlush(g_pStdOut);
641	if (RT_FAILURE(rc) && rcExit == RTEXITCODE_SUCCESS)
642	rcExit = RTEXITCODE_FAILURE;
643	}
644
645	return rcExit;
646	}
647

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source: vbox/trunk/src/VBox/Runtime/common/path/RTPathRmCmd.cpp@ 71916

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