VBoxManageSnapshot.cpp@ 99844

Last change on this file since 99844 was 99775, checked in by vboxsync, 19 months ago
*: Mark functions as static if not used outside of a given compilation unit. Enables the compiler to optimize inlining, reduces the symbol tables, exposes unused functions and in some rare cases exposes mismtaches between function declarations and definitions, but most importantly reduces the number of parfait reports for the extern-function-no-forward-declaration category. This should not result in any functional changes, bugref:3409
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1	/* $Id: VBoxManageSnapshot.cpp 99775 2023-05-12 12:21:58Z 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	static 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	static 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	static 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@ 99844

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