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-rwxr-xr-xCPP/7zip/Archive/ArchiveExports.cpp135
1 files changed, 135 insertions, 0 deletions
diff --git a/CPP/7zip/Archive/ArchiveExports.cpp b/CPP/7zip/Archive/ArchiveExports.cpp
new file mode 100755
index 0000000..5d6cf92
--- /dev/null
+++ b/CPP/7zip/Archive/ArchiveExports.cpp
@@ -0,0 +1,135 @@
+// ArchiveExports.cpp
+
+#include "StdAfx.h"
+
+#include "../../Common/ComTry.h"
+
+#include "../../Windows/PropVariant.h"
+
+#include "../Common/RegisterArc.h"
+
+static const unsigned int kNumArcsMax = 48;
+static unsigned int g_NumArcs = 0;
+static unsigned int g_DefaultArcIndex = 0;
+static const CArcInfo *g_Arcs[kNumArcsMax];
+void RegisterArc(const CArcInfo *arcInfo)
+{
+ if (g_NumArcs < kNumArcsMax)
+ {
+ const wchar_t *p = arcInfo->Name;
+ if (p[0] == '7' && p[1] == 'z' && p[2] == 0)
+ g_DefaultArcIndex = g_NumArcs;
+ g_Arcs[g_NumArcs++] = arcInfo;
+ }
+}
+
+DEFINE_GUID(CLSID_CArchiveHandler,
+0x23170F69, 0x40C1, 0x278A, 0x10, 0x00, 0x00, 0x01, 0x10, 0x00, 0x00, 0x00);
+
+#define CLS_ARC_ID_ITEM(cls) ((cls).Data4[5])
+
+static inline HRESULT SetPropString(const char *s, unsigned int size, PROPVARIANT *value)
+{
+ if ((value->bstrVal = ::SysAllocStringByteLen(s, size)) != 0)
+ value->vt = VT_BSTR;
+ return S_OK;
+}
+
+static inline HRESULT SetPropGUID(const GUID &guid, PROPVARIANT *value)
+{
+ return SetPropString((const char *)&guid, sizeof(GUID), value);
+}
+
+int FindFormatCalssId(const GUID *clsID)
+{
+ GUID cls = *clsID;
+ CLS_ARC_ID_ITEM(cls) = 0;
+ if (cls != CLSID_CArchiveHandler)
+ return -1;
+ Byte id = CLS_ARC_ID_ITEM(*clsID);
+ for (unsigned i = 0; i < g_NumArcs; i++)
+ if (g_Arcs[i]->ClassId == id)
+ return (int)i;
+ return -1;
+}
+
+STDAPI CreateArchiver(const GUID *clsid, const GUID *iid, void **outObject)
+{
+ COM_TRY_BEGIN
+ {
+ int needIn = (*iid == IID_IInArchive);
+ int needOut = (*iid == IID_IOutArchive);
+ if (!needIn && !needOut)
+ return E_NOINTERFACE;
+ int formatIndex = FindFormatCalssId(clsid);
+ if (formatIndex < 0)
+ return CLASS_E_CLASSNOTAVAILABLE;
+
+ const CArcInfo &arc = *g_Arcs[formatIndex];
+ if (needIn)
+ {
+ *outObject = arc.CreateInArchive();
+ ((IInArchive *)*outObject)->AddRef();
+ }
+ else
+ {
+ if (!arc.CreateOutArchive)
+ return CLASS_E_CLASSNOTAVAILABLE;
+ *outObject = arc.CreateOutArchive();
+ ((IOutArchive *)*outObject)->AddRef();
+ }
+ }
+ COM_TRY_END
+ return S_OK;
+}
+
+STDAPI GetHandlerProperty2(UInt32 formatIndex, PROPID propID, PROPVARIANT *value)
+{
+ COM_TRY_BEGIN
+ if (formatIndex >= g_NumArcs)
+ return E_INVALIDARG;
+ const CArcInfo &arc = *g_Arcs[formatIndex];
+ NWindows::NCOM::CPropVariant prop;
+ switch(propID)
+ {
+ case NArchive::kName:
+ prop = arc.Name;
+ break;
+ case NArchive::kClassID:
+ {
+ GUID clsId = CLSID_CArchiveHandler;
+ CLS_ARC_ID_ITEM(clsId) = arc.ClassId;
+ return SetPropGUID(clsId, value);
+ }
+ case NArchive::kExtension:
+ if (arc.Ext != 0)
+ prop = arc.Ext;
+ break;
+ case NArchive::kAddExtension:
+ if (arc.AddExt != 0)
+ prop = arc.AddExt;
+ break;
+ case NArchive::kUpdate:
+ prop = (bool)(arc.CreateOutArchive != 0);
+ break;
+ case NArchive::kKeepName:
+ prop = arc.KeepName;
+ break;
+ case NArchive::kStartSignature:
+ return SetPropString((const char *)arc.Signature, arc.SignatureSize, value);
+ }
+ prop.Detach(value);
+ return S_OK;
+ COM_TRY_END
+}
+
+STDAPI GetHandlerProperty(PROPID propID, PROPVARIANT *value)
+{
+ return GetHandlerProperty2(g_DefaultArcIndex, propID, value);
+}
+
+STDAPI GetNumberOfFormats(UINT32 *numFormats)
+{
+ *numFormats = g_NumArcs;
+ return S_OK;
+}