VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/path/RTPathRmCmd.cpp@ 56743

Last change on this file since 56743 was 56743, checked in by vboxsync, 9 years ago

Runtime/RTPathRmCmd: Fix for the fix

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1/* $Id: RTPathRmCmd.cpp 56743 2015-07-01 22:07:12Z vboxsync $ */
2/** @file
3 * IPRT - TAR Command.
4 */
5
6/*
7 * Copyright (C) 2013-2015 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. */
62typedef 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 */
74typedef 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. */
97typedef RTPATHRMCMDOPTS *PRTPATHRMCMDOPTS;
98
99
100/*******************************************************************************
101* Global Variables *
102*******************************************************************************/
103/** A bunch of zeros. */
104static uint8_t const g_abZeros[16384] = { 0 };
105/** A bunch of 0xFF bytes. (lazy init) */
106static uint8_t g_ab0xFF[16384];
107
108
109static void rtPathRmVerbose(PRTPATHRMCMDOPTS pOpts, const char *pszPath)
110{
111 if (!pOpts->fMachineReadable)
112 RTPrintf("%s\n", pszPath);
113}
114
115
116static 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 */
139static 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 */
160static 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 */
233static 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 */
256static 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 PRTDIR 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 */
372static 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 */
408static 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
475RTDECL(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
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 rc = RTStrmSetMode(g_pStdOut, true /*fBinary*/, false /*fCurrentCodeSet*/);
613 if (RT_FAILURE(rc))
614 return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTStrmSetMode failed: %Rrc.\n", rc);
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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