third_party/lzma/v4_65/files/CPP/7zip/Archive/ArchiveExports.cpp - Issue 624713003: Keep only base/extractor.[cc|h].

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Issue 624713003: Keep only base/extractor.[cc|h]. (Closed) Base URL: https://chromium.googlesource.com/external/omaha.git@master

Patch Set: Created 6 years, 2 months ago

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1 // ArchiveExports.cpp

2

3 #include "StdAfx.h"

4

5 #include "../../Common/ComTry.h"

6 #include "../../Common/Types.h"

7 #include "../../Windows/PropVariant.h"

8 #include "../Common/RegisterArc.h"

9

10 #include "IArchive.h"

11 #include "../ICoder.h"

12 #include "../IPassword.h"

13

14 static const unsigned int kNumArcsMax = 32;

15 static unsigned int g_NumArcs = 0;

16 static const CArcInfo *g_Arcs[kNumArcsMax];

17 void RegisterArc(const CArcInfo *arcInfo)

18 {

19 if (g_NumArcs < kNumArcsMax)

20 g_Arcs[g_NumArcs++] = arcInfo;

21 }

22

23 DEFINE_GUID(CLSID_CArchiveHandler,

24 0x23170F69, 0x40C1, 0x278A, 0x10, 0x00, 0x00, 0x01, 0x10, 0x00, 0x00, 0x00);

25

26 #define CLS_ARC_ID_ITEM(cls) ((cls).Data4[5])

27

28 static inline HRESULT SetPropString(const char s, unsigned int size, PROPVARIAN T value)

29 {

30 if ((value->bstrVal = ::SysAllocStringByteLen(s, size)) != 0)

31 value->vt = VT_BSTR;

32 return S_OK;

33 }

34

35 static inline HRESULT SetPropGUID(const GUID &guid, PROPVARIANT *value)

36 {

37 return SetPropString((const char *)&guid, sizeof(GUID), value);

38 }

39

40 int FindFormatCalssId(const GUID *clsID)

41 {

42 GUID cls = *clsID;

43 CLS_ARC_ID_ITEM(cls) = 0;

44 if (cls != CLSID_CArchiveHandler)

45 return -1;

46 Byte id = CLS_ARC_ID_ITEM(*clsID);

47 for (unsigned i = 0; i < g_NumArcs; i++)

48 if (g_Arcs[i]->ClassId == id)

49 return (int)i;

50 return -1;

51 }

52

53 STDAPI CreateArchiver(const GUID clsid, const GUID iid, void **outObject)

54 {

55 COM_TRY_BEGIN

56 {

57 int needIn = (*iid == IID_IInArchive);

58 int needOut = (*iid == IID_IOutArchive);

59 if (!needIn && !needOut)

60 return E_NOINTERFACE;

61 int formatIndex = FindFormatCalssId(clsid);

62 if (formatIndex < 0)

63 return CLASS_E_CLASSNOTAVAILABLE;

64

65 const CArcInfo &arc = *g_Arcs[formatIndex];

66 if (needIn)

67 {

68 *outObject = arc.CreateInArchive();

69 ((IInArchive )outObject)->AddRef();

70 }

71 else

72 {

73 if (!arc.CreateOutArchive)

74 return CLASS_E_CLASSNOTAVAILABLE;

75 *outObject = arc.CreateOutArchive();

76 ((IOutArchive )outObject)->AddRef();

77 }

78 }

79 COM_TRY_END

80 return S_OK;

81 }

82

83 STDAPI GetHandlerProperty2(UInt32 formatIndex, PROPID propID, PROPVARIANT *value )

84 {

85 if (formatIndex >= g_NumArcs)

86 return E_INVALIDARG;

87 const CArcInfo &arc = *g_Arcs[formatIndex];

88 NWindows::NCOM::CPropVariant prop;

89 switch(propID)

90 {

91 case NArchive::kName:

92 prop = arc.Name;

93 break;

94 case NArchive::kClassID:

95 {

96 GUID clsId = CLSID_CArchiveHandler;

97 CLS_ARC_ID_ITEM(clsId) = arc.ClassId;

98 return SetPropGUID(clsId, value);

99 }

100 case NArchive::kExtension:

101 if (arc.Ext != 0)

102 prop = arc.Ext;

103 break;

104 case NArchive::kAddExtension:

105 if (arc.AddExt != 0)

106 prop = arc.AddExt;

107 break;

108 case NArchive::kUpdate:

109 prop = (bool)(arc.CreateOutArchive != 0);

110 break;

111 case NArchive::kKeepName:

112 prop = arc.KeepName;

113 break;

114 case NArchive::kStartSignature:

115 return SetPropString((const char *)arc.Signature, arc.SignatureSize, value );

116 }

117 prop.Detach(value);

118 return S_OK;

119 }

120

121 STDAPI GetHandlerProperty(PROPID propID, PROPVARIANT *value)

122 {

123 return GetHandlerProperty2(0, propID, value);

124 }

125

126 STDAPI GetNumberOfFormats(UINT32 *numFormats)

127 {

128 *numFormats = g_NumArcs;

129 return S_OK;

130 }

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