RTPathRmCmd.cpp@ 44279

Last change on this file since 44279 was 44279, checked in by vboxsync, 12 years ago
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1	/* $Id: RTPathRmCmd.cpp 44279 2013-01-13 20:58:30Z vboxsync $ */
2	/** @file
3	* IPRT - TAR Command.
4	*/
5
6	/*
7	* Copyright (C) 2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. 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 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, rc);
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	* @param pObjInfo Pointer the FS object info for the directory.
256	* This will be modified.
257	*/
258	static int rtPathRmRecursive(PRTPATHRMCMDOPTS pOpts, char *pszPath, size_t cchPath, PRTDIRENTRY pDirEntry, PRTFSOBJINFO pObjInfo)
259	{
260	/*
261	* Make sure the path ends with a slash.
262	*/
263	if (!cchPath \|\| !RTPATH_IS_SLASH(pszPath[cchPath - 1]))
264	{
265	if (cchPath + 1 >= RTPATH_MAX)
266	return rtPathRmError(pOpts, pszPath, VERR_BUFFER_OVERFLOW, "Buffer overflow fixing up '%s'.\n", pszPath);
267	pszPath[cchPath++] = RTPATH_SLASH;
268	pszPath[cchPath] = '\0';
269	}
270
271	/*
272	* Traverse the directory.
273	*/
274	PRTDIR hDir;
275	int rc = RTDirOpen(&hDir, pszPath);
276	if (RT_FAILURE(rc))
277	return rtPathRmError(pOpts, pszPath, rc, "Error opening directory '%s': %Rrc", pszPath, rc);
278	int rcRet = VINF_SUCCESS;
279	for (;;)
280	{
281	/*
282	* Read the next entry, constructing an full path for it.
283	*/
284	size_t cbEntry = RTPATHRM_DIR_MAX_ENTRY_SIZE;
285	rc = RTDirRead(hDir, pDirEntry, &cbEntry);
286	if (rc == VERR_NO_MORE_FILES)
287	{
288	pszPath[cchPath] = '\0';
289	rc = RTDirClose(hDir);
290	if (RT_FAILURE(rc))
291	return rtPathRmError(pOpts, pszPath, rc, "Error closing directory '%s': %Rrc", pszPath, rc);
292
293	/* Delete the directory. */
294	int rc2 = rtPathRmOneDir(pOpts, pszPath);
295	if (RT_FAILURE(rc2) && RT_SUCCESS(rcRet))
296	return rc2;
297	return rcRet;
298	}
299	if (RT_FAILURE(rc))
300	{
301	rc = rtPathRmError(pOpts, pszPath, rc, "Error reading directory '%s': %Rrc", pszPath, rc);
302	break;
303	}
304
305	/* Skip '.' and '..'. */
306	if ( pDirEntry->szName[0] == '.'
307	&& ( pDirEntry->cbName == 1
308	\|\| ( pDirEntry->cbName == 2
309	&& pDirEntry->szName[1] == '.')))
310	continue;
311
312	/* Construct full path. */
313	if (cchPath + pDirEntry->cbName > RTPATH_MAX)
314	{
315	pszPath[cchPath] = '\0';
316	rc = rtPathRmError(pOpts, pszPath, VERR_BUFFER_OVERFLOW, "Path buffer overflow in directory '%s'.", pszPath);
317	break;
318	}
319	memcpy(pszPath + cchPath, pDirEntry->szName, pDirEntry->cbName + 1);
320
321	/*
322	* Just query the full path info as we'll need it.
323	*/
324	rc = RTPathQueryInfoEx(pszPath, pObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
325	if (RT_FAILURE(rc))
326	{
327	rc = rtPathRmError(pOpts, pszPath, rc, "RTPathQueryInfoEx failed on '%s': %Rrc", pszPath, rc);
328	if (RT_SUCCESS(rcRet))
329	rcRet = rc;
330	}
331
332	/*
333	* Take action according to the type.
334	*/
335	switch (pObjInfo->Attr.fMode & RTFS_TYPE_MASK)
336	{
337	case RTFS_TYPE_FILE:
338	rc = rtPathRmOneFile(pOpts, pszPath, pObjInfo);
339	break;
340
341	case RTFS_TYPE_DIRECTORY:
342	rc = rtPathRmRecursive(pOpts, pszPath, cchPath, pDirEntry, pObjInfo);
343	break;
344
345	case RTFS_TYPE_SYMLINK:
346	rc = rtPathRmOneSymlink(pOpts, pszPath);
347	break;
348
349	case RTFS_TYPE_FIFO:
350	case RTFS_TYPE_DEV_CHAR:
351	case RTFS_TYPE_DEV_BLOCK:
352	case RTFS_TYPE_SOCKET:
353	rc = rtPathRmOneFile(pOpts, pszPath, pObjInfo);
354	break;
355
356	case RTFS_TYPE_WHITEOUT:
357	default:
358	rc = rtPathRmError(pOpts, pszPath, VERR_UNEXPECTED_FS_OBJ_TYPE,
359	"Object '%s' has an unknown file type: %o\n", pszPath, pObjInfo->Attr.fMode & RTFS_TYPE_MASK);
360	break;
361	}
362	if (RT_FAILURE(rc) && RT_SUCCESS(rcRet))
363	rcRet = rc;
364	}
365
366	RTDirClose(hDir);
367	return rc;
368	}
369
370
371	/**
372	* Remove one user specified file or directory.
373	*
374	* @returns IPRT status code, errors go via rtPathRmError.
375	* @param pOpts The RM options.
376	* @param pszPath The path to the file, directory, whatever.
377	*/
378	static int rtPathRmOne(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
379	{
380	/*
381	* Refuse to remove '.' and '..'.
382	*/
383	const char *pszFilename = RTPathFilename(pszPath);
384	if ( pszFilename[0] == '.'
385	&& ( pszFilename[1] == '\0'
386	\|\| (pszFilename[1] == '.' && pszFilename[2] == '\0')))
387	return rtPathRmError(pOpts, pszPath, VERR_CANT_DELETE_DIRECTORY, "Cannot remove directory '%s'.\n", pszPath);
388
389	/*
390	* Query file system object info.
391	*/
392	RTFSOBJINFO ObjInfo;
393	int rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK);
394	if (RT_FAILURE(rc))
395	{
396	if (pOpts->fForce && (rc == VERR_FILE_NOT_FOUND \|\| rc == VERR_PATH_NOT_FOUND))
397	return VINF_SUCCESS;
398	return rtPathRmError(pOpts, pszPath, rc, "Error deleting '%s': %Rrc", pszPath, rc);
399	}
400
401	/*
402	* Take type specific action.
403	*/
404	switch (ObjInfo.Attr.fMode & RTFS_TYPE_MASK)
405	{
406	case RTFS_TYPE_FILE:
407	return rtPathRmOneFile(pOpts, pszPath, &ObjInfo);
408
409	case RTFS_TYPE_DIRECTORY:
410	if (pOpts->fRecursive)
411	{
412	char szPath[RTPATH_MAX];
413	rc = RTPathAbs(pszPath, szPath, sizeof(szPath));
414	if (RT_FAILURE(rc))
415	return rtPathRmError(pOpts, pszPath, rc, "RTPathAbs failed on '%s': %Rrc\n", pszPath, rc);
416
417	union
418	{
419	RTDIRENTRY Core;
420	uint8_t abPadding[RTPATHRM_DIR_MAX_ENTRY_SIZE];
421	} DirEntry;
422
423	return rtPathRmRecursive(pOpts, szPath, strlen(szPath), &DirEntry.Core, &ObjInfo);
424	}
425	if (pOpts->fDirsAndOther)
426	return rtPathRmOneDir(pOpts, pszPath);
427	return rtPathRmError(pOpts, pszPath, VERR_IS_A_DIRECTORY, "Cannot remove '%s': %Rrc\n", pszPath, VERR_IS_A_DIRECTORY);
428
429	case RTFS_TYPE_SYMLINK:
430	return rtPathRmOneSymlink(pOpts, pszPath);
431
432	case RTFS_TYPE_FIFO:
433	case RTFS_TYPE_DEV_CHAR:
434	case RTFS_TYPE_DEV_BLOCK:
435	case RTFS_TYPE_SOCKET:
436	return rtPathRmOneFile(pOpts, pszPath, &ObjInfo);
437
438	case RTFS_TYPE_WHITEOUT:
439	default:
440	return rtPathRmError(pOpts, pszPath, VERR_UNEXPECTED_FS_OBJ_TYPE,
441	"Object '%s' has an unknown file type: %o\n", pszPath, ObjInfo.Attr.fMode & RTFS_TYPE_MASK);
442
443	}
444	}
445
446
447	RTDECL(RTEXITCODE) RTPathRmCmd(unsigned cArgs, char **papszArgs)
448	{
449	/*
450	* Parse the command line.
451	*/
452	static const RTGETOPTDEF s_aOptions[] =
453	{
454	/* operations */
455	{ "--dirs-and-more", 'd', RTGETOPT_REQ_NOTHING },
456	{ "--force", 'f', RTGETOPT_REQ_NOTHING },
457	{ "--prompt", 'i', RTGETOPT_REQ_NOTHING },
458	{ "--prompt-once", 'I', RTGETOPT_REQ_NOTHING },
459	{ "--interactive", RTPATHRMCMD_OPT_INTERACTIVE, RTGETOPT_REQ_STRING },
460	{ "--one-file-system", RTPATHRMCMD_OPT_ONE_FILE_SYSTEM, RTGETOPT_REQ_NOTHING },
461	{ "--preserve-root", RTPATHRMCMD_OPT_PRESERVE_ROOT, RTGETOPT_REQ_NOTHING },
462	{ "--no-preserve-root", RTPATHRMCMD_OPT_NO_PRESERVE_ROOT, RTGETOPT_REQ_NOTHING },
463	{ "--recursive", 'R', RTGETOPT_REQ_NOTHING },
464	{ "--recursive", 'r', RTGETOPT_REQ_NOTHING },
465	{ "--safe-delete", 'P', RTGETOPT_REQ_NOTHING },
466	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
467
468	/* IPRT extensions */
469	{ "--machine-readable", RTPATHRMCMD_OPT_MACHINE_READABLE, RTGETOPT_REQ_NOTHING },
470	{ "--machinereadable", RTPATHRMCMD_OPT_MACHINE_READABLE, RTGETOPT_REQ_NOTHING }, /* bad long option style */
471	};
472
473	RTGETOPTSTATE GetState;
474	int rc = RTGetOptInit(&GetState, cArgs, papszArgs, s_aOptions, RT_ELEMENTS(s_aOptions), 1,
475	RTGETOPTINIT_FLAGS_OPTS_FIRST);
476	if (RT_FAILURE(rc))
477	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTGetOpt failed: %Rrc", rc);
478
479	RTPATHRMCMDOPTS Opts;
480	RT_ZERO(Opts);
481	Opts.fPreserveRoot = true;
482	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_NONE;
483
484	RTGETOPTUNION ValueUnion;
485	while ( (rc = RTGetOpt(&GetState, &ValueUnion)) != 0
486	&& rc != VINF_GETOPT_NOT_OPTION)
487	{
488	switch (rc)
489	{
490	case 'd':
491	Opts.fDirsAndOther = true;
492	break;
493
494	case 'f':
495	Opts.fForce = true;
496	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_NONE;
497	break;
498
499	case 'i':
500	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ALL;
501	break;
502
503	case 'I':
504	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ONCE;
505	break;
506
507	case RTPATHRMCMD_OPT_INTERACTIVE:
508	if (!strcmp(ValueUnion.psz, "always"))
509	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ALL;
510	else if (!strcmp(ValueUnion.psz, "once"))
511	Opts.enmInteractive = RTPATHRMCMDINTERACTIVE_ONCE;
512	else
513	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "Unknown --interactive option value: '%s'\n", ValueUnion.psz);
514	break;
515
516	case RTPATHRMCMD_OPT_ONE_FILE_SYSTEM:
517	Opts.fOneFileSystem = true;
518	break;
519
520	case RTPATHRMCMD_OPT_PRESERVE_ROOT:
521	Opts.fPreserveRoot = true;
522	break;
523
524	case RTPATHRMCMD_OPT_NO_PRESERVE_ROOT:
525	Opts.fPreserveRoot = false;
526	break;
527
528	case 'R':
529	case 'r':
530	Opts.fRecursive = true;
531	Opts.fDirsAndOther = true;
532	break;
533
534	case 'P':
535	Opts.fSafeDelete = true;
536	break;
537
538	case 'v':
539	Opts.fVerbose = true;
540	break;
541
542
543	case RTPATHRMCMD_OPT_MACHINE_READABLE:
544	Opts.fMachineReadable = true;
545	break;
546
547	case 'h':
548	RTPrintf("Usage: to be written\nOption dump:\n");
549	for (unsigned i = 0; i < RT_ELEMENTS(s_aOptions); i++)
550	if (RT_C_IS_PRINT(s_aOptions[i].iShort))
551	RTPrintf(" -%c,%s\n", s_aOptions[i].iShort, s_aOptions[i].pszLong);
552	else
553	RTPrintf(" %s\n", s_aOptions[i].pszLong);
554	return RTEXITCODE_SUCCESS;
555
556	case 'V':
557	RTPrintf("%sr%d\n", RTBldCfgVersion(), RTBldCfgRevision());
558	return RTEXITCODE_SUCCESS;
559
560	default:
561	return RTGetOptPrintError(rc, &ValueUnion);
562	}
563	}
564
565	/*
566	* Options we don't support.
567	*/
568	if (Opts.fOneFileSystem)
569	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The --one-file-system option is not yet implemented.\n");
570	if (Opts.enmInteractive != RTPATHRMCMDINTERACTIVE_NONE)
571	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The -i, -I and --interactive options are not implemented yet.\n");
572
573	/*
574	* No files means error.
575	*/
576	if (rc != VINF_GETOPT_NOT_OPTION && !Opts.fForce)
577	return RTMsgErrorExit(RTEXITCODE_FAILURE, "No files or directories specified.\n");
578
579	/*
580	* Machine readable init + header.
581	*/
582	if (Opts.fMachineReadable)
583	{
584	rc = RTStrmSetMode(g_pStdOut, true /fBinary/, false /fCurrentCodeSet/);
585	if (RT_FAILURE(rc))
586	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTStrmSetMode failed: %Rrc.\n", rc);
587	static const char s_achHeader[] = "hdr_id=rm\0hdr_ver=1";
588	RTStrmWrite(g_pStdOut, s_achHeader, sizeof(s_achHeader));
589	}
590
591	/*
592	* Delete the specified files/dirs/whatever.
593	*/
594	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
595	while (rc == VINF_GETOPT_NOT_OPTION)
596	{
597	rc = rtPathRmOne(&Opts, ValueUnion.psz);
598	if (RT_FAILURE(rc))
599	rcExit = RTEXITCODE_FAILURE;
600
601	/* next */
602	rc = RTGetOpt(&GetState, &ValueUnion);
603	}
604	if (rc != 0)
605	rcExit = RTGetOptPrintError(rc, &ValueUnion);
606
607	/*
608	* Terminate the machine readable stuff.
609	*/
610	if (Opts.fMachineReadable)
611	{
612	RTStrmWrite(g_pStdOut, "\0\0\0", 4);
613	rc = RTStrmFlush(g_pStdOut);
614	if (RT_FAILURE(rc) && rcExit == RTEXITCODE_SUCCESS)
615	rcExit = RTEXITCODE_FAILURE;
616	}
617
618	return rcExit;
619	}
620

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source: vbox/trunk/src/VBox/Runtime/common/path/RTPathRmCmd.cpp@ 44279

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