VirtualBox

source: vbox/trunk/src/VBox/Frontends/VBoxManage/VBoxManageSnapshot.cpp@ 77910

Last change on this file since 77910 was 77801, checked in by vboxsync, 5 years ago

VBoxManage snapshot: Use manpage help text (option parsing needs cleaning up!).
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File size: 24.2 KB
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1/* $Id: VBoxManageSnapshot.cpp 77801 2019-03-19 17:44:40Z vboxsync $ */
2/** @file
3 * VBoxManage - The 'snapshot' command.
4 */
5
6/*
7 * Copyright (C) 2006-2019 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
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#include <VBox/com/com.h>
23#include <VBox/com/string.h>
24#include <VBox/com/array.h>
25#include <VBox/com/ErrorInfo.h>
26#include <VBox/com/errorprint.h>
27
28#include <VBox/com/VirtualBox.h>
29
30#include <iprt/getopt.h>
31#include <iprt/stream.h>
32#include <iprt/time.h>
33
34#include "VBoxManage.h"
35using namespace com;
36
37/**
38 * Helper function used with "VBoxManage snapshot ... dump". Gets called to find the
39 * snapshot in the machine's snapshot tree that uses a particular diff image child of
40 * a medium.
41 * Horribly inefficient since we keep re-querying the snapshots tree for each image,
42 * but this is for quick debugging only.
43 * @param pMedium
44 * @param pThisSnapshot
45 * @param pCurrentSnapshot
46 * @param uMediumLevel
47 * @param uSnapshotLevel
48 * @return
49 */
50bool FindAndPrintSnapshotUsingMedium(ComPtr<IMedium> &pMedium,
51 ComPtr<ISnapshot> &pThisSnapshot,
52 ComPtr<ISnapshot> &pCurrentSnapshot,
53 uint32_t uMediumLevel,
54 uint32_t uSnapshotLevel)
55{
56 HRESULT rc;
57
58 do
59 {
60 // get snapshot machine so we can figure out which diff image this created
61 ComPtr<IMachine> pSnapshotMachine;
62 CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Machine)(pSnapshotMachine.asOutParam()));
63
64 // get media attachments
65 SafeIfaceArray<IMediumAttachment> aAttachments;
66 CHECK_ERROR_BREAK(pSnapshotMachine, COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(aAttachments)));
67
68 for (uint32_t i = 0;
69 i < aAttachments.size();
70 ++i)
71 {
72 ComPtr<IMediumAttachment> pAttach(aAttachments[i]);
73 DeviceType_T type;
74 CHECK_ERROR_BREAK(pAttach, COMGETTER(Type)(&type));
75 if (type == DeviceType_HardDisk)
76 {
77 ComPtr<IMedium> pMediumInSnapshot;
78 CHECK_ERROR_BREAK(pAttach, COMGETTER(Medium)(pMediumInSnapshot.asOutParam()));
79
80 if (pMediumInSnapshot == pMedium)
81 {
82 // get snapshot name
83 Bstr bstrSnapshotName;
84 CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Name)(bstrSnapshotName.asOutParam()));
85
86 RTPrintf("%*s \"%ls\"%s\n",
87 50 + uSnapshotLevel * 2, "", // indent
88 bstrSnapshotName.raw(),
89 (pThisSnapshot == pCurrentSnapshot) ? " (CURSNAP)" : "");
90 return true; // found
91 }
92 }
93 }
94
95 // not found: then recurse into child snapshots
96 SafeIfaceArray<ISnapshot> aSnapshots;
97 CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Children)(ComSafeArrayAsOutParam(aSnapshots)));
98
99 for (uint32_t i = 0;
100 i < aSnapshots.size();
101 ++i)
102 {
103 ComPtr<ISnapshot> pChild(aSnapshots[i]);
104 if (FindAndPrintSnapshotUsingMedium(pMedium,
105 pChild,
106 pCurrentSnapshot,
107 uMediumLevel,
108 uSnapshotLevel + 1))
109 // found:
110 break;
111 }
112 } while (0);
113
114 return false;
115}
116
117/**
118 * Helper function used with "VBoxManage snapshot ... dump". Called from DumpSnapshot()
119 * for each hard disk attachment found in a virtual machine. This then writes out the
120 * root (base) medium for that hard disk attachment and recurses into the children
121 * tree of that medium, correlating it with the snapshots of the machine.
122 * @param pCurrentStateMedium constant, the medium listed in the current machine data (latest diff image).
123 * @param pMedium variant, initially the base medium, then a child of the base medium when recursing.
124 * @param pRootSnapshot constant, the root snapshot of the machine, if any; this then looks into the child snapshots.
125 * @param pCurrentSnapshot constant, the machine's current snapshot (so we can mark it in the output).
126 * @param uLevel variant, the recursion level for output indentation.
127 */
128void DumpMediumWithChildren(ComPtr<IMedium> &pCurrentStateMedium,
129 ComPtr<IMedium> &pMedium,
130 ComPtr<ISnapshot> &pRootSnapshot,
131 ComPtr<ISnapshot> &pCurrentSnapshot,
132 uint32_t uLevel)
133{
134 HRESULT rc;
135 do
136 {
137 // print this medium
138 Bstr bstrMediumName;
139 CHECK_ERROR_BREAK(pMedium, COMGETTER(Name)(bstrMediumName.asOutParam()));
140 RTPrintf("%*s \"%ls\"%s\n",
141 uLevel * 2, "", // indent
142 bstrMediumName.raw(),
143 (pCurrentStateMedium == pMedium) ? " (CURSTATE)" : "");
144
145 // find and print the snapshot that uses this particular medium (diff image)
146 FindAndPrintSnapshotUsingMedium(pMedium, pRootSnapshot, pCurrentSnapshot, uLevel, 0);
147
148 // recurse into children
149 SafeIfaceArray<IMedium> aChildren;
150 CHECK_ERROR_BREAK(pMedium, COMGETTER(Children)(ComSafeArrayAsOutParam(aChildren)));
151 for (uint32_t i = 0;
152 i < aChildren.size();
153 ++i)
154 {
155 ComPtr<IMedium> pChild(aChildren[i]);
156 DumpMediumWithChildren(pCurrentStateMedium, pChild, pRootSnapshot, pCurrentSnapshot, uLevel + 1);
157 }
158 } while (0);
159}
160
161
162/**
163 * Handles the 'snapshot myvm list' sub-command.
164 * @returns Exit code.
165 * @param pArgs The handler argument package.
166 * @param pMachine Reference to the VM (locked) we're operating on.
167 */
168static RTEXITCODE handleSnapshotList(HandlerArg *pArgs, ComPtr<IMachine> &pMachine)
169{
170 static const RTGETOPTDEF g_aOptions[] =
171 {
172 { "--details", 'D', RTGETOPT_REQ_NOTHING },
173 { "--machinereadable", 'M', RTGETOPT_REQ_NOTHING },
174 };
175
176 VMINFO_DETAILS enmDetails = VMINFO_STANDARD;
177
178 int c;
179 RTGETOPTUNION ValueUnion;
180 RTGETOPTSTATE GetState;
181 RTGetOptInit(&GetState, pArgs->argc, pArgs->argv, g_aOptions, RT_ELEMENTS(g_aOptions), 2 /*iArg*/, 0 /*fFlags*/);
182 while ((c = RTGetOpt(&GetState, &ValueUnion)))
183 {
184 switch (c)
185 {
186 case 'D': enmDetails = VMINFO_FULL; break;
187 case 'M': enmDetails = VMINFO_MACHINEREADABLE; break;
188 default: return errorGetOpt(c, &ValueUnion);
189 }
190 }
191
192 ComPtr<ISnapshot> pSnapshot;
193 HRESULT hrc = pMachine->FindSnapshot(Bstr().raw(), pSnapshot.asOutParam());
194 if (FAILED(hrc))
195 {
196 RTPrintf("This machine does not have any snapshots\n");
197 return RTEXITCODE_FAILURE;
198 }
199 if (pSnapshot)
200 {
201 ComPtr<ISnapshot> pCurrentSnapshot;
202 CHECK_ERROR2I_RET(pMachine, COMGETTER(CurrentSnapshot)(pCurrentSnapshot.asOutParam()), RTEXITCODE_FAILURE);
203 hrc = showSnapshots(pSnapshot, pCurrentSnapshot, enmDetails);
204 if (FAILED(hrc))
205 return RTEXITCODE_FAILURE;
206 }
207 return RTEXITCODE_SUCCESS;
208}
209
210/**
211 * Implementation for "VBoxManage snapshot ... dump". This goes thru the machine's
212 * medium attachments and calls DumpMediumWithChildren() for each hard disk medium found,
213 * which then dumps the parent/child tree of that medium together with the corresponding
214 * snapshots.
215 * @param pMachine Machine to dump snapshots for.
216 */
217void DumpSnapshot(ComPtr<IMachine> &pMachine)
218{
219 HRESULT rc;
220
221 do
222 {
223 // get root snapshot
224 ComPtr<ISnapshot> pSnapshot;
225 CHECK_ERROR_BREAK(pMachine, FindSnapshot(Bstr("").raw(), pSnapshot.asOutParam()));
226
227 // get current snapshot
228 ComPtr<ISnapshot> pCurrentSnapshot;
229 CHECK_ERROR_BREAK(pMachine, COMGETTER(CurrentSnapshot)(pCurrentSnapshot.asOutParam()));
230
231 // get media attachments
232 SafeIfaceArray<IMediumAttachment> aAttachments;
233 CHECK_ERROR_BREAK(pMachine, COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(aAttachments)));
234 for (uint32_t i = 0;
235 i < aAttachments.size();
236 ++i)
237 {
238 ComPtr<IMediumAttachment> pAttach(aAttachments[i]);
239 DeviceType_T type;
240 CHECK_ERROR_BREAK(pAttach, COMGETTER(Type)(&type));
241 if (type == DeviceType_HardDisk)
242 {
243 ComPtr<IMedium> pCurrentStateMedium;
244 CHECK_ERROR_BREAK(pAttach, COMGETTER(Medium)(pCurrentStateMedium.asOutParam()));
245
246 ComPtr<IMedium> pBaseMedium;
247 CHECK_ERROR_BREAK(pCurrentStateMedium, COMGETTER(Base)(pBaseMedium.asOutParam()));
248
249 Bstr bstrBaseMediumName;
250 CHECK_ERROR_BREAK(pBaseMedium, COMGETTER(Name)(bstrBaseMediumName.asOutParam()));
251
252 RTPrintf("[%RI32] Images and snapshots for medium \"%ls\"\n", i, bstrBaseMediumName.raw());
253
254 DumpMediumWithChildren(pCurrentStateMedium,
255 pBaseMedium,
256 pSnapshot,
257 pCurrentSnapshot,
258 0);
259 }
260 }
261 } while (0);
262}
263
264typedef enum SnapshotUniqueFlags
265{
266 SnapshotUniqueFlags_Null = 0,
267 SnapshotUniqueFlags_Number = RT_BIT(1),
268 SnapshotUniqueFlags_Timestamp = RT_BIT(2),
269 SnapshotUniqueFlags_Space = RT_BIT(16),
270 SnapshotUniqueFlags_Force = RT_BIT(30)
271} SnapshotUniqueFlags;
272
273static int parseSnapshotUniqueFlags(const char *psz, SnapshotUniqueFlags *pUnique)
274{
275 int rc = VINF_SUCCESS;
276 unsigned uUnique = 0;
277 while (psz && *psz && RT_SUCCESS(rc))
278 {
279 size_t len;
280 const char *pszComma = strchr(psz, ',');
281 if (pszComma)
282 len = pszComma - psz;
283 else
284 len = strlen(psz);
285 if (len > 0)
286 {
287 if (!RTStrNICmp(psz, "number", len))
288 uUnique |= SnapshotUniqueFlags_Number;
289 else if (!RTStrNICmp(psz, "timestamp", len))
290 uUnique |= SnapshotUniqueFlags_Timestamp;
291 else if (!RTStrNICmp(psz, "space", len))
292 uUnique |= SnapshotUniqueFlags_Space;
293 else if (!RTStrNICmp(psz, "force", len))
294 uUnique |= SnapshotUniqueFlags_Force;
295 else
296 rc = VERR_PARSE_ERROR;
297 }
298 if (pszComma)
299 psz += len + 1;
300 else
301 psz += len;
302 }
303
304 if (RT_SUCCESS(rc))
305 *pUnique = (SnapshotUniqueFlags)uUnique;
306 return rc;
307}
308
309/**
310 * Implementation for all VBoxManage snapshot ... subcommands.
311 * @param a
312 * @return
313 */
314RTEXITCODE handleSnapshot(HandlerArg *a)
315{
316 HRESULT rc;
317
318/** @todo r=bird: sub-standard command line parsing here!
319 *
320 * 'VBoxManage snapshot empty take --help' takes a snapshot rather than display
321 * help as you would expect.
322 *
323 */
324
325 /* we need at least a VM and a command */
326 if (a->argc < 2)
327 return errorSyntax("Not enough parameters");
328
329 /* the first argument must be the VM */
330 Bstr bstrMachine(a->argv[0]);
331 ComPtr<IMachine> pMachine;
332 CHECK_ERROR(a->virtualBox, FindMachine(bstrMachine.raw(),
333 pMachine.asOutParam()));
334 if (!pMachine)
335 return RTEXITCODE_FAILURE;
336
337 /* we have to open a session for this task (new or shared) */
338 CHECK_ERROR_RET(pMachine, LockMachine(a->session, LockType_Shared), RTEXITCODE_FAILURE);
339 do
340 {
341 /* replace the (read-only) IMachine object by a writable one */
342 ComPtr<IMachine> sessionMachine;
343 CHECK_ERROR_BREAK(a->session, COMGETTER(Machine)(sessionMachine.asOutParam()));
344
345 /* switch based on the command */
346 bool fDelete = false,
347 fRestore = false,
348 fRestoreCurrent = false;
349
350 if (!strcmp(a->argv[1], "take"))
351 {
352 setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_TAKE);
353
354 /* there must be a name */
355 if (a->argc < 3)
356 {
357 errorSyntax("Missing snapshot name");
358 rc = E_FAIL;
359 break;
360 }
361 Bstr name(a->argv[2]);
362
363 /* parse the optional arguments */
364 Bstr desc;
365 bool fPause = true; /* default is NO live snapshot */
366 SnapshotUniqueFlags enmUnique = SnapshotUniqueFlags_Null;
367 static const RTGETOPTDEF s_aTakeOptions[] =
368 {
369 { "--description", 'd', RTGETOPT_REQ_STRING },
370 { "-description", 'd', RTGETOPT_REQ_STRING },
371 { "-desc", 'd', RTGETOPT_REQ_STRING },
372 { "--pause", 'p', RTGETOPT_REQ_NOTHING },
373 { "--live", 'l', RTGETOPT_REQ_NOTHING },
374 { "--uniquename", 'u', RTGETOPT_REQ_STRING }
375 };
376 RTGETOPTSTATE GetOptState;
377 RTGetOptInit(&GetOptState, a->argc, a->argv, s_aTakeOptions, RT_ELEMENTS(s_aTakeOptions),
378 3, RTGETOPTINIT_FLAGS_NO_STD_OPTS);
379 int ch;
380 RTGETOPTUNION Value;
381 int vrc;
382 while ( SUCCEEDED(rc)
383 && (ch = RTGetOpt(&GetOptState, &Value)))
384 {
385 switch (ch)
386 {
387 case 'p':
388 fPause = true;
389 break;
390
391 case 'l':
392 fPause = false;
393 break;
394
395 case 'd':
396 desc = Value.psz;
397 break;
398
399 case 'u':
400 vrc = parseSnapshotUniqueFlags(Value.psz, &enmUnique);
401 if (RT_FAILURE(vrc))
402 return errorArgument("Invalid unique name description '%s'", Value.psz);
403 break;
404
405 default:
406 errorGetOpt(ch, &Value);
407 rc = E_FAIL;
408 break;
409 }
410 }
411 if (FAILED(rc))
412 break;
413
414 if (enmUnique & (SnapshotUniqueFlags_Number | SnapshotUniqueFlags_Timestamp))
415 {
416 ComPtr<ISnapshot> pSnapshot;
417 rc = sessionMachine->FindSnapshot(name.raw(),
418 pSnapshot.asOutParam());
419 if (SUCCEEDED(rc) || (enmUnique & SnapshotUniqueFlags_Force))
420 {
421 /* there is a duplicate, need to create a unique name */
422 uint32_t count = 0;
423 RTTIMESPEC now;
424
425 if (enmUnique & SnapshotUniqueFlags_Number)
426 {
427 if (enmUnique & SnapshotUniqueFlags_Force)
428 count = 1;
429 else
430 count = 2;
431 RTTimeSpecSetNano(&now, 0); /* Shut up MSC */
432 }
433 else
434 RTTimeNow(&now);
435
436 while (count < 500)
437 {
438 Utf8Str suffix;
439 if (enmUnique & SnapshotUniqueFlags_Number)
440 suffix = Utf8StrFmt("%u", count);
441 else
442 {
443 RTTIMESPEC nowplus = now;
444 RTTimeSpecAddSeconds(&nowplus, count);
445 RTTIME stamp;
446 RTTimeExplode(&stamp, &nowplus);
447 suffix = Utf8StrFmt("%04u-%02u-%02uT%02u:%02u:%02uZ", stamp.i32Year, stamp.u8Month, stamp.u8MonthDay, stamp.u8Hour, stamp.u8Minute, stamp.u8Second);
448 }
449 Bstr tryName = name;
450 if (enmUnique & SnapshotUniqueFlags_Space)
451 tryName = BstrFmt("%ls %s", name.raw(), suffix.c_str());
452 else
453 tryName = BstrFmt("%ls%s", name.raw(), suffix.c_str());
454 count++;
455 rc = sessionMachine->FindSnapshot(tryName.raw(),
456 pSnapshot.asOutParam());
457 if (FAILED(rc))
458 {
459 name = tryName;
460 break;
461 }
462 }
463 if (SUCCEEDED(rc))
464 {
465 errorArgument("Failed to generate a unique snapshot name");
466 rc = E_FAIL;
467 break;
468 }
469 }
470 rc = S_OK;
471 }
472
473 ComPtr<IProgress> progress;
474 Bstr snapId;
475 CHECK_ERROR_BREAK(sessionMachine, TakeSnapshot(name.raw(), desc.raw(),
476 fPause, snapId.asOutParam(),
477 progress.asOutParam()));
478
479 rc = showProgress(progress);
480 if (SUCCEEDED(rc))
481 RTPrintf("Snapshot taken. UUID: %ls\n", snapId.raw());
482 else
483 CHECK_PROGRESS_ERROR(progress, ("Failed to take snapshot"));
484 }
485 else if ( (fDelete = !strcmp(a->argv[1], "delete"))
486 || (fRestore = !strcmp(a->argv[1], "restore"))
487 || (fRestoreCurrent = !strcmp(a->argv[1], "restorecurrent"))
488 )
489 {
490 setCurrentSubcommand(fDelete ? HELP_SCOPE_SNAPSHOT_DELETE
491 : fRestore ? HELP_SCOPE_SNAPSHOT_RESTORE
492 : HELP_SCOPE_SNAPSHOT_RESTORECURRENT);
493
494 if (fRestoreCurrent)
495 {
496 if (a->argc > 2)
497 {
498 errorSyntax("Too many arguments");
499 rc = E_FAIL;
500 break;
501 }
502 }
503 /* exactly one parameter: snapshot name */
504 else if (a->argc != 3)
505 {
506 errorSyntax("Expecting snapshot name only");
507 rc = E_FAIL;
508 break;
509 }
510
511 ComPtr<ISnapshot> pSnapshot;
512
513 if (fRestoreCurrent)
514 {
515 CHECK_ERROR_BREAK(sessionMachine, COMGETTER(CurrentSnapshot)(pSnapshot.asOutParam()));
516 if (pSnapshot.isNull())
517 {
518 RTPrintf("This machine does not have any snapshots\n");
519 return RTEXITCODE_FAILURE;
520 }
521 }
522 else
523 {
524 // restore or delete snapshot: then resolve cmd line argument to snapshot instance
525 CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
526 pSnapshot.asOutParam()));
527 }
528
529 Bstr bstrSnapGuid;
530 CHECK_ERROR_BREAK(pSnapshot, COMGETTER(Id)(bstrSnapGuid.asOutParam()));
531
532 Bstr bstrSnapName;
533 CHECK_ERROR_BREAK(pSnapshot, COMGETTER(Name)(bstrSnapName.asOutParam()));
534
535 ComPtr<IProgress> pProgress;
536
537 RTPrintf("%s snapshot '%ls' (%ls)\n",
538 fDelete ? "Deleting" : "Restoring", bstrSnapName.raw(), bstrSnapGuid.raw());
539
540 if (fDelete)
541 {
542 CHECK_ERROR_BREAK(sessionMachine, DeleteSnapshot(bstrSnapGuid.raw(),
543 pProgress.asOutParam()));
544 }
545 else
546 {
547 // restore or restore current
548 CHECK_ERROR_BREAK(sessionMachine, RestoreSnapshot(pSnapshot, pProgress.asOutParam()));
549 }
550
551 rc = showProgress(pProgress);
552 CHECK_PROGRESS_ERROR(pProgress, ("Snapshot operation failed"));
553 }
554 else if (!strcmp(a->argv[1], "edit"))
555 {
556 setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_EDIT);
557 if (a->argc < 3)
558 {
559 errorSyntax("Missing snapshot name");
560 rc = E_FAIL;
561 break;
562 }
563
564 ComPtr<ISnapshot> pSnapshot;
565
566 if ( !strcmp(a->argv[2], "--current")
567 || !strcmp(a->argv[2], "-current"))
568 {
569 CHECK_ERROR_BREAK(sessionMachine, COMGETTER(CurrentSnapshot)(pSnapshot.asOutParam()));
570 if (pSnapshot.isNull())
571 {
572 RTPrintf("This machine does not have any snapshots\n");
573 return RTEXITCODE_FAILURE;
574 }
575 }
576 else
577 {
578 CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
579 pSnapshot.asOutParam()));
580 }
581
582 /* parse options */
583 for (int i = 3; i < a->argc; i++)
584 {
585 if ( !strcmp(a->argv[i], "--name")
586 || !strcmp(a->argv[i], "-name")
587 || !strcmp(a->argv[i], "-newname"))
588 {
589 if (a->argc <= i + 1)
590 {
591 errorArgument("Missing argument to '%s'", a->argv[i]);
592 rc = E_FAIL;
593 break;
594 }
595 i++;
596 pSnapshot->COMSETTER(Name)(Bstr(a->argv[i]).raw());
597 }
598 else if ( !strcmp(a->argv[i], "--description")
599 || !strcmp(a->argv[i], "-description")
600 || !strcmp(a->argv[i], "-newdesc"))
601 {
602 if (a->argc <= i + 1)
603 {
604 errorArgument("Missing argument to '%s'", a->argv[i]);
605 rc = E_FAIL;
606 break;
607 }
608 i++;
609 pSnapshot->COMSETTER(Description)(Bstr(a->argv[i]).raw());
610 }
611 else
612 {
613 errorSyntax("Invalid parameter '%s'", Utf8Str(a->argv[i]).c_str());
614 rc = E_FAIL;
615 break;
616 }
617 }
618
619 }
620 else if (!strcmp(a->argv[1], "showvminfo"))
621 {
622 setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_SHOWVMINFO);
623
624 /* exactly one parameter: snapshot name */
625 if (a->argc != 3)
626 {
627 errorSyntax("Expecting snapshot name only");
628 rc = E_FAIL;
629 break;
630 }
631
632 ComPtr<ISnapshot> pSnapshot;
633
634 CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
635 pSnapshot.asOutParam()));
636
637 /* get the machine of the given snapshot */
638 ComPtr<IMachine> pMachine2;
639 pSnapshot->COMGETTER(Machine)(pMachine2.asOutParam());
640 showVMInfo(a->virtualBox, pMachine2, NULL, VMINFO_NONE);
641 }
642 else if (!strcmp(a->argv[1], "list"))
643 {
644 setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_LIST);
645 rc = handleSnapshotList(a, sessionMachine) == RTEXITCODE_SUCCESS ? S_OK : E_FAIL;
646 }
647 else if (!strcmp(a->argv[1], "dump")) // undocumented parameter to debug snapshot info
648 DumpSnapshot(sessionMachine);
649 else
650 {
651 errorSyntax("Invalid parameter '%s'", Utf8Str(a->argv[1]).c_str());
652 rc = E_FAIL;
653 }
654 } while (0);
655
656 a->session->UnlockMachine();
657
658 return SUCCEEDED(rc) ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
659}
660
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