VBoxManageSnapshot.cpp@ 98298

Last change on this file since 98298 was 98298, checked in by vboxsync, 23 months ago
VBoxManage: rc -> vrc/hrc. Make scm check. bugref:10223
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1	/* $Id: VBoxManageSnapshot.cpp 98298 2023-01-25 02:23:33Z vboxsync $ */
2	/** @file
3	* VBoxManage - The 'snapshot' command.
4	*/
5
6	/*
7	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#include <VBox/com/com.h>
33	#include <VBox/com/string.h>
34	#include <VBox/com/array.h>
35	#include <VBox/com/ErrorInfo.h>
36	#include <VBox/com/errorprint.h>
37
38	#include <VBox/com/VirtualBox.h>
39
40	#include <iprt/getopt.h>
41	#include <iprt/stream.h>
42	#include <iprt/time.h>
43
44	#include "VBoxManage.h"
45	using namespace com;
46
47	DECLARE_TRANSLATION_CONTEXT(Snapshot);
48
49	/**
50	* Helper function used with "VBoxManage snapshot ... dump". Gets called to find the
51	* snapshot in the machine's snapshot tree that uses a particular diff image child of
52	* a medium.
53	* Horribly inefficient since we keep re-querying the snapshots tree for each image,
54	* but this is for quick debugging only.
55	* @param pMedium
56	* @param pThisSnapshot
57	* @param pCurrentSnapshot
58	* @param uMediumLevel
59	* @param uSnapshotLevel
60	* @return
61	*/
62	bool FindAndPrintSnapshotUsingMedium(ComPtr<IMedium> &pMedium,
63	ComPtr<ISnapshot> &pThisSnapshot,
64	ComPtr<ISnapshot> &pCurrentSnapshot,
65	uint32_t uMediumLevel,
66	uint32_t uSnapshotLevel)
67	{
68	HRESULT hrc;
69
70	do
71	{
72	// get snapshot machine so we can figure out which diff image this created
73	ComPtr<IMachine> pSnapshotMachine;
74	CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Machine)(pSnapshotMachine.asOutParam()));
75
76	// get media attachments
77	SafeIfaceArray<IMediumAttachment> aAttachments;
78	CHECK_ERROR_BREAK(pSnapshotMachine, COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(aAttachments)));
79
80	for (uint32_t i = 0;
81	i < aAttachments.size();
82	++i)
83	{
84	ComPtr<IMediumAttachment> pAttach(aAttachments[i]);
85	DeviceType_T type;
86	CHECK_ERROR_BREAK(pAttach, COMGETTER(Type)(&type));
87	if (type == DeviceType_HardDisk)
88	{
89	ComPtr<IMedium> pMediumInSnapshot;
90	CHECK_ERROR_BREAK(pAttach, COMGETTER(Medium)(pMediumInSnapshot.asOutParam()));
91
92	if (pMediumInSnapshot == pMedium)
93	{
94	// get snapshot name
95	Bstr bstrSnapshotName;
96	CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Name)(bstrSnapshotName.asOutParam()));
97
98	RTPrintf("%*s \"%ls\"%s\n",
99	50 + uSnapshotLevel * 2, "", // indent
100	bstrSnapshotName.raw(),
101	(pThisSnapshot == pCurrentSnapshot) ? " (CURSNAP)" : "");
102	return true; // found
103	}
104	}
105	}
106
107	// not found: then recurse into child snapshots
108	SafeIfaceArray<ISnapshot> aSnapshots;
109	CHECK_ERROR_BREAK(pThisSnapshot, COMGETTER(Children)(ComSafeArrayAsOutParam(aSnapshots)));
110
111	for (uint32_t i = 0;
112	i < aSnapshots.size();
113	++i)
114	{
115	ComPtr<ISnapshot> pChild(aSnapshots[i]);
116	if (FindAndPrintSnapshotUsingMedium(pMedium,
117	pChild,
118	pCurrentSnapshot,
119	uMediumLevel,
120	uSnapshotLevel + 1))
121	// found:
122	break;
123	}
124	} while (0);
125
126	return false;
127	}
128
129	/**
130	* Helper function used with "VBoxManage snapshot ... dump". Called from DumpSnapshot()
131	* for each hard disk attachment found in a virtual machine. This then writes out the
132	* root (base) medium for that hard disk attachment and recurses into the children
133	* tree of that medium, correlating it with the snapshots of the machine.
134	* @param pCurrentStateMedium constant, the medium listed in the current machine data (latest diff image).
135	* @param pMedium variant, initially the base medium, then a child of the base medium when recursing.
136	* @param pRootSnapshot constant, the root snapshot of the machine, if any; this then looks into the child snapshots.
137	* @param pCurrentSnapshot constant, the machine's current snapshot (so we can mark it in the output).
138	* @param uLevel variant, the recursion level for output indentation.
139	*/
140	void DumpMediumWithChildren(ComPtr<IMedium> &pCurrentStateMedium,
141	ComPtr<IMedium> &pMedium,
142	ComPtr<ISnapshot> &pRootSnapshot,
143	ComPtr<ISnapshot> &pCurrentSnapshot,
144	uint32_t uLevel)
145	{
146	HRESULT hrc;
147	do
148	{
149	// print this medium
150	Bstr bstrMediumName;
151	CHECK_ERROR_BREAK(pMedium, COMGETTER(Name)(bstrMediumName.asOutParam()));
152	RTPrintf("%*s \"%ls\"%s\n",
153	uLevel * 2, "", // indent
154	bstrMediumName.raw(),
155	(pCurrentStateMedium == pMedium) ? " (CURSTATE)" : "");
156
157	// find and print the snapshot that uses this particular medium (diff image)
158	FindAndPrintSnapshotUsingMedium(pMedium, pRootSnapshot, pCurrentSnapshot, uLevel, 0);
159
160	// recurse into children
161	SafeIfaceArray<IMedium> aChildren;
162	CHECK_ERROR_BREAK(pMedium, COMGETTER(Children)(ComSafeArrayAsOutParam(aChildren)));
163	for (uint32_t i = 0;
164	i < aChildren.size();
165	++i)
166	{
167	ComPtr<IMedium> pChild(aChildren[i]);
168	DumpMediumWithChildren(pCurrentStateMedium, pChild, pRootSnapshot, pCurrentSnapshot, uLevel + 1);
169	}
170	} while (0);
171	}
172
173
174	/**
175	* Handles the 'snapshot myvm list' sub-command.
176	* @returns Exit code.
177	* @param pArgs The handler argument package.
178	* @param pMachine Reference to the VM (locked) we're operating on.
179	*/
180	static RTEXITCODE handleSnapshotList(HandlerArg *pArgs, ComPtr<IMachine> &pMachine)
181	{
182	static const RTGETOPTDEF g_aOptions[] =
183	{
184	{ "--details", 'D', RTGETOPT_REQ_NOTHING },
185	{ "--machinereadable", 'M', RTGETOPT_REQ_NOTHING },
186	};
187
188	VMINFO_DETAILS enmDetails = VMINFO_STANDARD;
189
190	int c;
191	RTGETOPTUNION ValueUnion;
192	RTGETOPTSTATE GetState;
193	RTGetOptInit(&GetState, pArgs->argc, pArgs->argv, g_aOptions, RT_ELEMENTS(g_aOptions), 2 /iArg/, 0 /fFlags/);
194	while ((c = RTGetOpt(&GetState, &ValueUnion)))
195	{
196	switch (c)
197	{
198	case 'D': enmDetails = VMINFO_FULL; break;
199	case 'M': enmDetails = VMINFO_MACHINEREADABLE; break;
200	default: return errorGetOpt(c, &ValueUnion);
201	}
202	}
203
204	ComPtr<ISnapshot> pSnapshot;
205	HRESULT hrc = pMachine->FindSnapshot(Bstr().raw(), pSnapshot.asOutParam());
206	if (FAILED(hrc))
207	{
208	RTPrintf(Snapshot::tr("This machine does not have any snapshots\n"));
209	return RTEXITCODE_FAILURE;
210	}
211	if (pSnapshot)
212	{
213	ComPtr<ISnapshot> pCurrentSnapshot;
214	CHECK_ERROR2I_RET(pMachine, COMGETTER(CurrentSnapshot)(pCurrentSnapshot.asOutParam()), RTEXITCODE_FAILURE);
215	hrc = showSnapshots(pSnapshot, pCurrentSnapshot, enmDetails);
216	if (FAILED(hrc))
217	return RTEXITCODE_FAILURE;
218	}
219	return RTEXITCODE_SUCCESS;
220	}
221
222	/**
223	* Implementation for "VBoxManage snapshot ... dump". This goes thru the machine's
224	* medium attachments and calls DumpMediumWithChildren() for each hard disk medium found,
225	* which then dumps the parent/child tree of that medium together with the corresponding
226	* snapshots.
227	* @param pMachine Machine to dump snapshots for.
228	*/
229	void DumpSnapshot(ComPtr<IMachine> &pMachine)
230	{
231	HRESULT hrc;
232
233	do
234	{
235	// get root snapshot
236	ComPtr<ISnapshot> pSnapshot;
237	CHECK_ERROR_BREAK(pMachine, FindSnapshot(Bstr("").raw(), pSnapshot.asOutParam()));
238
239	// get current snapshot
240	ComPtr<ISnapshot> pCurrentSnapshot;
241	CHECK_ERROR_BREAK(pMachine, COMGETTER(CurrentSnapshot)(pCurrentSnapshot.asOutParam()));
242
243	// get media attachments
244	SafeIfaceArray<IMediumAttachment> aAttachments;
245	CHECK_ERROR_BREAK(pMachine, COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(aAttachments)));
246	for (uint32_t i = 0;
247	i < aAttachments.size();
248	++i)
249	{
250	ComPtr<IMediumAttachment> pAttach(aAttachments[i]);
251	DeviceType_T type;
252	CHECK_ERROR_BREAK(pAttach, COMGETTER(Type)(&type));
253	if (type == DeviceType_HardDisk)
254	{
255	ComPtr<IMedium> pCurrentStateMedium;
256	CHECK_ERROR_BREAK(pAttach, COMGETTER(Medium)(pCurrentStateMedium.asOutParam()));
257
258	ComPtr<IMedium> pBaseMedium;
259	CHECK_ERROR_BREAK(pCurrentStateMedium, COMGETTER(Base)(pBaseMedium.asOutParam()));
260
261	Bstr bstrBaseMediumName;
262	CHECK_ERROR_BREAK(pBaseMedium, COMGETTER(Name)(bstrBaseMediumName.asOutParam()));
263
264	RTPrintf(Snapshot::tr("[%RI32] Images and snapshots for medium \"%ls\"\n"), i, bstrBaseMediumName.raw());
265
266	DumpMediumWithChildren(pCurrentStateMedium,
267	pBaseMedium,
268	pSnapshot,
269	pCurrentSnapshot,
270	0);
271	}
272	}
273	} while (0);
274	}
275
276	typedef enum SnapshotUniqueFlags
277	{
278	SnapshotUniqueFlags_Null = 0,
279	SnapshotUniqueFlags_Number = RT_BIT(1),
280	SnapshotUniqueFlags_Timestamp = RT_BIT(2),
281	SnapshotUniqueFlags_Space = RT_BIT(16),
282	SnapshotUniqueFlags_Force = RT_BIT(30)
283	} SnapshotUniqueFlags;
284
285	static int parseSnapshotUniqueFlags(const char psz, SnapshotUniqueFlags pUnique)
286	{
287	int vrc = VINF_SUCCESS;
288	unsigned uUnique = 0;
289	while (psz && *psz && RT_SUCCESS(vrc))
290	{
291	size_t len;
292	const char *pszComma = strchr(psz, ',');
293	if (pszComma)
294	len = pszComma - psz;
295	else
296	len = strlen(psz);
297	if (len > 0)
298	{
299	if (!RTStrNICmp(psz, "number", len))
300	uUnique \|= SnapshotUniqueFlags_Number;
301	else if (!RTStrNICmp(psz, "timestamp", len))
302	uUnique \|= SnapshotUniqueFlags_Timestamp;
303	else if (!RTStrNICmp(psz, "space", len))
304	uUnique \|= SnapshotUniqueFlags_Space;
305	else if (!RTStrNICmp(psz, "force", len))
306	uUnique \|= SnapshotUniqueFlags_Force;
307	else
308	vrc = VERR_PARSE_ERROR;
309	}
310	if (pszComma)
311	psz += len + 1;
312	else
313	psz += len;
314	}
315
316	if (RT_SUCCESS(vrc))
317	*pUnique = (SnapshotUniqueFlags)uUnique;
318	return vrc;
319	}
320
321	/**
322	* Implementation for all VBoxManage snapshot ... subcommands.
323	* @param a
324	* @return
325	*/
326	RTEXITCODE handleSnapshot(HandlerArg *a)
327	{
328	HRESULT hrc;
329
330	/** @todo r=bird: sub-standard command line parsing here!
331	*
332	* 'VBoxManage snapshot empty take --help' takes a snapshot rather than display
333	* help as you would expect.
334	*
335	*/
336
337	/* we need at least a VM and a command */
338	if (a->argc < 2)
339	return errorSyntax(Snapshot::tr("Not enough parameters"));
340
341	/* the first argument must be the VM */
342	Bstr bstrMachine(a->argv[0]);
343	ComPtr<IMachine> pMachine;
344	CHECK_ERROR(a->virtualBox, FindMachine(bstrMachine.raw(),
345	pMachine.asOutParam()));
346	if (!pMachine)
347	return RTEXITCODE_FAILURE;
348
349	/* we have to open a session for this task (new or shared) */
350	CHECK_ERROR_RET(pMachine, LockMachine(a->session, LockType_Shared), RTEXITCODE_FAILURE);
351	do
352	{
353	/* replace the (read-only) IMachine object by a writable one */
354	ComPtr<IMachine> sessionMachine;
355	CHECK_ERROR_BREAK(a->session, COMGETTER(Machine)(sessionMachine.asOutParam()));
356
357	/* switch based on the command */
358	bool fDelete = false,
359	fRestore = false,
360	fRestoreCurrent = false;
361
362	if (!strcmp(a->argv[1], "take"))
363	{
364	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_TAKE);
365
366	/* there must be a name */
367	if (a->argc < 3)
368	{
369	errorSyntax(Snapshot::tr("Missing snapshot name"));
370	hrc = E_FAIL;
371	break;
372	}
373	Bstr name(a->argv[2]);
374
375	/* parse the optional arguments */
376	Bstr desc;
377	bool fPause = true; /* default is NO live snapshot */
378	SnapshotUniqueFlags enmUnique = SnapshotUniqueFlags_Null;
379	static const RTGETOPTDEF s_aTakeOptions[] =
380	{
381	{ "--description", 'd', RTGETOPT_REQ_STRING },
382	{ "-description", 'd', RTGETOPT_REQ_STRING },
383	{ "-desc", 'd', RTGETOPT_REQ_STRING },
384	{ "--pause", 'p', RTGETOPT_REQ_NOTHING },
385	{ "--live", 'l', RTGETOPT_REQ_NOTHING },
386	{ "--uniquename", 'u', RTGETOPT_REQ_STRING }
387	};
388	RTGETOPTSTATE GetOptState;
389	RTGetOptInit(&GetOptState, a->argc, a->argv, s_aTakeOptions, RT_ELEMENTS(s_aTakeOptions),
390	3, RTGETOPTINIT_FLAGS_NO_STD_OPTS);
391	int ch;
392	RTGETOPTUNION Value;
393	int vrc;
394	while ( SUCCEEDED(hrc)
395	&& (ch = RTGetOpt(&GetOptState, &Value)))
396	{
397	switch (ch)
398	{
399	case 'p':
400	fPause = true;
401	break;
402
403	case 'l':
404	fPause = false;
405	break;
406
407	case 'd':
408	desc = Value.psz;
409	break;
410
411	case 'u':
412	vrc = parseSnapshotUniqueFlags(Value.psz, &enmUnique);
413	if (RT_FAILURE(vrc))
414	return errorArgument(Snapshot::tr("Invalid unique name description '%s'"), Value.psz);
415	break;
416
417	default:
418	errorGetOpt(ch, &Value);
419	hrc = E_FAIL;
420	break;
421	}
422	}
423	if (FAILED(hrc))
424	break;
425
426	if (enmUnique & (SnapshotUniqueFlags_Number \| SnapshotUniqueFlags_Timestamp))
427	{
428	ComPtr<ISnapshot> pSnapshot;
429	hrc = sessionMachine->FindSnapshot(name.raw(),
430	pSnapshot.asOutParam());
431	if (SUCCEEDED(hrc) \|\| (enmUnique & SnapshotUniqueFlags_Force))
432	{
433	/* there is a duplicate, need to create a unique name */
434	uint32_t count = 0;
435	RTTIMESPEC now;
436
437	if (enmUnique & SnapshotUniqueFlags_Number)
438	{
439	if (enmUnique & SnapshotUniqueFlags_Force)
440	count = 1;
441	else
442	count = 2;
443	RTTimeSpecSetNano(&now, 0); /* Shut up MSC */
444	}
445	else
446	RTTimeNow(&now);
447
448	while (count < 500)
449	{
450	Utf8Str suffix;
451	if (enmUnique & SnapshotUniqueFlags_Number)
452	suffix = Utf8StrFmt("%u", count);
453	else
454	{
455	RTTIMESPEC nowplus = now;
456	RTTimeSpecAddSeconds(&nowplus, count);
457	RTTIME stamp;
458	RTTimeExplode(&stamp, &nowplus);
459	suffix = Utf8StrFmt("%04u-%02u-%02uT%02u:%02u:%02uZ", stamp.i32Year, stamp.u8Month, stamp.u8MonthDay, stamp.u8Hour, stamp.u8Minute, stamp.u8Second);
460	}
461	Bstr tryName = name;
462	if (enmUnique & SnapshotUniqueFlags_Space)
463	tryName = BstrFmt("%ls %s", name.raw(), suffix.c_str());
464	else
465	tryName = BstrFmt("%ls%s", name.raw(), suffix.c_str());
466	count++;
467	hrc = sessionMachine->FindSnapshot(tryName.raw(),
468	pSnapshot.asOutParam());
469	if (FAILED(hrc))
470	{
471	name = tryName;
472	break;
473	}
474	}
475	if (SUCCEEDED(hrc))
476	{
477	errorArgument(Snapshot::tr("Failed to generate a unique snapshot name"));
478	hrc = E_FAIL;
479	break;
480	}
481	}
482	hrc = S_OK;
483	}
484
485	ComPtr<IProgress> progress;
486	Bstr snapId;
487	CHECK_ERROR_BREAK(sessionMachine, TakeSnapshot(name.raw(), desc.raw(),
488	fPause, snapId.asOutParam(),
489	progress.asOutParam()));
490
491	hrc = showProgress(progress);
492	if (SUCCEEDED(hrc))
493	RTPrintf(Snapshot::tr("Snapshot taken. UUID: %ls\n"), snapId.raw());
494	else
495	CHECK_PROGRESS_ERROR(progress, (Snapshot::tr("Failed to take snapshot")));
496	}
497	else if ( (fDelete = !strcmp(a->argv[1], "delete"))
498	\|\| (fRestore = !strcmp(a->argv[1], "restore"))
499	\|\| (fRestoreCurrent = !strcmp(a->argv[1], "restorecurrent"))
500	)
501	{
502	setCurrentSubcommand(fDelete ? HELP_SCOPE_SNAPSHOT_DELETE
503	: fRestore ? HELP_SCOPE_SNAPSHOT_RESTORE
504	: HELP_SCOPE_SNAPSHOT_RESTORECURRENT);
505
506	if (fRestoreCurrent)
507	{
508	if (a->argc > 2)
509	{
510	errorSyntax(Snapshot::tr("Too many arguments"));
511	hrc = E_FAIL;
512	break;
513	}
514	}
515	/* exactly one parameter: snapshot name */
516	else if (a->argc != 3)
517	{
518	errorSyntax(Snapshot::tr("Expecting snapshot name only"));
519	hrc = E_FAIL;
520	break;
521	}
522
523	ComPtr<ISnapshot> pSnapshot;
524
525	if (fRestoreCurrent)
526	{
527	CHECK_ERROR_BREAK(sessionMachine, COMGETTER(CurrentSnapshot)(pSnapshot.asOutParam()));
528	if (pSnapshot.isNull())
529	{
530	RTPrintf(Snapshot::tr("This machine does not have any snapshots\n"));
531	return RTEXITCODE_FAILURE;
532	}
533	}
534	else
535	{
536	// restore or delete snapshot: then resolve cmd line argument to snapshot instance
537	CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
538	pSnapshot.asOutParam()));
539	}
540
541	Bstr bstrSnapGuid;
542	CHECK_ERROR_BREAK(pSnapshot, COMGETTER(Id)(bstrSnapGuid.asOutParam()));
543
544	Bstr bstrSnapName;
545	CHECK_ERROR_BREAK(pSnapshot, COMGETTER(Name)(bstrSnapName.asOutParam()));
546
547	ComPtr<IProgress> pProgress;
548
549	RTPrintf(Snapshot::tr("%s snapshot '%ls' (%ls)\n"),
550	fDelete ? Snapshot::tr("Deleting") : Snapshot::tr("Restoring"), bstrSnapName.raw(), bstrSnapGuid.raw());
551
552	if (fDelete)
553	{
554	CHECK_ERROR_BREAK(sessionMachine, DeleteSnapshot(bstrSnapGuid.raw(),
555	pProgress.asOutParam()));
556	}
557	else
558	{
559	// restore or restore current
560	CHECK_ERROR_BREAK(sessionMachine, RestoreSnapshot(pSnapshot, pProgress.asOutParam()));
561	}
562
563	hrc = showProgress(pProgress);
564	CHECK_PROGRESS_ERROR(pProgress, (Snapshot::tr("Snapshot operation failed")));
565	}
566	else if (!strcmp(a->argv[1], "edit"))
567	{
568	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_EDIT);
569	if (a->argc < 3)
570	{
571	errorSyntax(Snapshot::tr("Missing snapshot name"));
572	hrc = E_FAIL;
573	break;
574	}
575
576	/* Parse the optional arguments, allowing more freedom than the
577	* synopsis explains. Can rename multiple snapshots and so on. */
578	ComPtr<ISnapshot> pSnapshot;
579	static const RTGETOPTDEF s_aEditOptions[] =
580	{
581	{ "--current", 'c', RTGETOPT_REQ_NOTHING },
582	{ "-current", 'c', RTGETOPT_REQ_NOTHING },
583	{ "--name", 'n', RTGETOPT_REQ_STRING },
584	{ "-name", 'n', RTGETOPT_REQ_STRING },
585	{ "-newname", 'n', RTGETOPT_REQ_STRING },
586	{ "--description", 'd', RTGETOPT_REQ_STRING },
587	{ "-description", 'd', RTGETOPT_REQ_STRING },
588	{ "-desc", 'd', RTGETOPT_REQ_STRING }
589	};
590	RTGETOPTSTATE GetOptState;
591	RTGetOptInit(&GetOptState, a->argc, a->argv, s_aEditOptions, RT_ELEMENTS(s_aEditOptions),
592	2, RTGETOPTINIT_FLAGS_NO_STD_OPTS);
593	int ch;
594	RTGETOPTUNION Value;
595	while ( SUCCEEDED(hrc)
596	&& (ch = RTGetOpt(&GetOptState, &Value)))
597	{
598	switch (ch)
599	{
600	case 'c':
601	CHECK_ERROR_BREAK(sessionMachine, COMGETTER(CurrentSnapshot)(pSnapshot.asOutParam()));
602	if (pSnapshot.isNull())
603	{
604	RTPrintf(Snapshot::tr("This machine does not have any snapshots\n"));
605	return RTEXITCODE_FAILURE;
606	}
607	break;
608
609	case 'n':
610	CHECK_ERROR_BREAK(pSnapshot, COMSETTER(Name)(Bstr(Value.psz).raw()));
611	break;
612
613	case 'd':
614	CHECK_ERROR_BREAK(pSnapshot, COMSETTER(Description)(Bstr(Value.psz).raw()));
615	break;
616
617	case VINF_GETOPT_NOT_OPTION:
618	CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(Value.psz).raw(), pSnapshot.asOutParam()));
619	break;
620
621	default:
622	errorGetOpt(ch, &Value);
623	hrc = E_FAIL;
624	break;
625	}
626	}
627
628	if (FAILED(hrc))
629	break;
630	}
631	else if (!strcmp(a->argv[1], "showvminfo"))
632	{
633	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_SHOWVMINFO);
634
635	/* exactly one parameter: snapshot name */
636	if (a->argc != 3)
637	{
638	errorSyntax(Snapshot::tr("Expecting snapshot name only"));
639	hrc = E_FAIL;
640	break;
641	}
642
643	ComPtr<ISnapshot> pSnapshot;
644
645	CHECK_ERROR_BREAK(sessionMachine, FindSnapshot(Bstr(a->argv[2]).raw(),
646	pSnapshot.asOutParam()));
647
648	/* get the machine of the given snapshot */
649	ComPtr<IMachine> pMachine2;
650	pSnapshot->COMGETTER(Machine)(pMachine2.asOutParam());
651	showVMInfo(a->virtualBox, pMachine2, NULL, VMINFO_NONE);
652	}
653	else if (!strcmp(a->argv[1], "list"))
654	{
655	setCurrentSubcommand(HELP_SCOPE_SNAPSHOT_LIST);
656	hrc = handleSnapshotList(a, sessionMachine) == RTEXITCODE_SUCCESS ? S_OK : E_FAIL;
657	}
658	else if (!strcmp(a->argv[1], "dump")) // undocumented parameter to debug snapshot info
659	DumpSnapshot(sessionMachine);
660	else
661	{
662	errorSyntax(Snapshot::tr("Invalid parameter '%s'"), a->argv[1]);
663	hrc = E_FAIL;
664	}
665	} while (0);
666
667	a->session->UnlockMachine();
668
669	return SUCCEEDED(hrc) ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
670	}

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source: vbox/trunk/src/VBox/Frontends/VBoxManage/VBoxManageSnapshot.cpp@ 98298

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