1 files changed, 347 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/Windows/PropVariant.cpp b/other-licenses/7zstub/src/CPP/Windows/PropVariant.cpp
new file mode 100644
index 000000000..6d9fb48ed
--- /dev/null
+++ b/other-licenses/7zstub/src/CPP/Windows/PropVariant.cpp
@@ -0,0 +1,347 @@
+// Windows/PropVariant.cpp
+
+#include "StdAfx.h"
+
+#include "../Common/Defs.h"
+
+#include "PropVariant.h"
+
+namespace NWindows {
+namespace NCOM {
+
+BSTR AllocBstrFromAscii(const char *s) throw()
+{
+  if (!s)
+    return NULL;
+  UINT len = (UINT)strlen(s);
+  BSTR p = ::SysAllocStringLen(NULL, len);
+  if (p)
+  {
+    for (UINT i = 0; i <= len; i++)
+      p[i] = (Byte)s[i];
+  }
+  return p;
+}
+
+HRESULT PropVarEm_Alloc_Bstr(PROPVARIANT *p, unsigned numChars) throw()
+{
+  p->bstrVal = ::SysAllocStringLen(NULL, numChars);
+  if (!p->bstrVal)
+  {
+    p->vt = VT_ERROR;
+    p->scode = E_OUTOFMEMORY;
+    return E_OUTOFMEMORY;
+  }
+  p->vt = VT_BSTR;
+  return S_OK;
+}
+
+HRESULT PropVarEm_Set_Str(PROPVARIANT *p, const char *s) throw()
+{
+  p->bstrVal = AllocBstrFromAscii(s);
+  if (p->bstrVal)
+  {
+    p->vt = VT_BSTR;
+    return S_OK;
+  }
+  p->vt = VT_ERROR;
+  p->scode = E_OUTOFMEMORY;
+  return E_OUTOFMEMORY;
+}
+
+CPropVariant::CPropVariant(const PROPVARIANT &varSrc)
+{
+  vt = VT_EMPTY;
+  InternalCopy(&varSrc);
+}
+
+CPropVariant::CPropVariant(const CPropVariant &varSrc)
+{
+  vt = VT_EMPTY;
+  InternalCopy(&varSrc);
+}
+
+CPropVariant::CPropVariant(BSTR bstrSrc)
+{
+  vt = VT_EMPTY;
+  *this = bstrSrc;
+}
+
+CPropVariant::CPropVariant(LPCOLESTR lpszSrc)
+{
+  vt = VT_EMPTY;
+  *this = lpszSrc;
+}
+
+CPropVariant& CPropVariant::operator=(const CPropVariant &varSrc)
+{
+  InternalCopy(&varSrc);
+  return *this;
+}
+
+CPropVariant& CPropVariant::operator=(const PROPVARIANT &varSrc)
+{
+  InternalCopy(&varSrc);
+  return *this;
+}
+
+CPropVariant& CPropVariant::operator=(BSTR bstrSrc)
+{
+  *this = (LPCOLESTR)bstrSrc;
+  return *this;
+}
+
+static const char * const kMemException = "out of memory";
+
+CPropVariant& CPropVariant::operator=(LPCOLESTR lpszSrc)
+{
+  InternalClear();
+  vt = VT_BSTR;
+  wReserved1 = 0;
+  bstrVal = ::SysAllocString(lpszSrc);
+  if (!bstrVal && lpszSrc)
+  {
+    throw kMemException;
+    // vt = VT_ERROR;
+    // scode = E_OUTOFMEMORY;
+  }
+  return *this;
+}
+
+CPropVariant& CPropVariant::operator=(const UString &s)
+{
+  InternalClear();
+  vt = VT_BSTR;
+  wReserved1 = 0;
+  bstrVal = ::SysAllocStringLen(s, s.Len());
+  if (!bstrVal)
+    throw kMemException;
+  return *this;
+}
+
+CPropVariant& CPropVariant::operator=(const UString2 &s)
+{
+  /*
+  if (s.IsEmpty())
+    *this = L"";
+  else
+  */
+  {
+    InternalClear();
+    vt = VT_BSTR;
+    wReserved1 = 0;
+    bstrVal = ::SysAllocStringLen(s.GetRawPtr(), s.Len());
+    if (!bstrVal)
+      throw kMemException;
+    /* SysAllocStringLen probably appends a null-terminating character for NULL string.
+       But it doesn't specified in MSDN.
+       But we suppose that it works
+
+    if (!s.GetRawPtr())
+    {
+      *bstrVal = 0;
+    }
+    */
+
+    /* MSDN: Windows CE: SysAllocStringLen() : Passing invalid (and under some circumstances NULL)
+                         pointers to this function causes  an unexpected termination of the application.
+       Is it safe? Maybe we must chamnge the code for that case ? */
+  }
+  return *this;
+}
+
+CPropVariant& CPropVariant::operator=(const char *s)
+{
+  InternalClear();
+  vt = VT_BSTR;
+  wReserved1 = 0;
+  bstrVal = AllocBstrFromAscii(s);
+  if (!bstrVal)
+  {
+    throw kMemException;
+    // vt = VT_ERROR;
+    // scode = E_OUTOFMEMORY;
+  }
+  return *this;
+}
+
+CPropVariant& CPropVariant::operator=(bool bSrc) throw()
+{
+  if (vt != VT_BOOL)
+  {
+    InternalClear();
+    vt = VT_BOOL;
+  }
+  boolVal = bSrc ? VARIANT_TRUE : VARIANT_FALSE;
+  return *this;
+}
+
+BSTR CPropVariant::AllocBstr(unsigned numChars)
+{
+  if (vt != VT_EMPTY)
+    InternalClear();
+  vt = VT_BSTR;
+  wReserved1 = 0;
+  bstrVal = ::SysAllocStringLen(NULL, numChars);
+  if (!bstrVal)
+  {
+    throw kMemException;
+    // vt = VT_ERROR;
+    // scode = E_OUTOFMEMORY;
+  }
+  return bstrVal;
+}
+
+#define SET_PROP_FUNC(type, id, dest) \
+  CPropVariant& CPropVariant::operator=(type value) throw() \
+  { if (vt != id) { InternalClear(); vt = id; } \
+    dest = value; return *this; }
+
+SET_PROP_FUNC(Byte, VT_UI1, bVal)
+// SET_PROP_FUNC(Int16, VT_I2, iVal)
+SET_PROP_FUNC(Int32, VT_I4, lVal)
+SET_PROP_FUNC(UInt32, VT_UI4, ulVal)
+SET_PROP_FUNC(UInt64, VT_UI8, uhVal.QuadPart)
+SET_PROP_FUNC(Int64, VT_I8, hVal.QuadPart)
+SET_PROP_FUNC(const FILETIME &, VT_FILETIME, filetime)
+
+HRESULT PropVariant_Clear(PROPVARIANT *prop) throw()
+{
+  switch (prop->vt)
+  {
+    case VT_EMPTY:
+    case VT_UI1:
+    case VT_I1:
+    case VT_I2:
+    case VT_UI2:
+    case VT_BOOL:
+    case VT_I4:
+    case VT_UI4:
+    case VT_R4:
+    case VT_INT:
+    case VT_UINT:
+    case VT_ERROR:
+    case VT_FILETIME:
+    case VT_UI8:
+    case VT_R8:
+    case VT_CY:
+    case VT_DATE:
+      prop->vt = VT_EMPTY;
+      prop->wReserved1 = 0;
+      prop->wReserved2 = 0;
+      prop->wReserved3 = 0;
+      prop->uhVal.QuadPart = 0;
+      return S_OK;
+  }
+  return ::VariantClear((VARIANTARG *)prop);
+  // return ::PropVariantClear(prop);
+  // PropVariantClear can clear VT_BLOB.
+}
+
+HRESULT CPropVariant::Clear() throw()
+{
+  if (vt == VT_EMPTY)
+    return S_OK;
+  return PropVariant_Clear(this);
+}
+
+HRESULT CPropVariant::Copy(const PROPVARIANT* pSrc) throw()
+{
+  ::VariantClear((tagVARIANT *)this);
+  switch (pSrc->vt)
+  {
+    case VT_UI1:
+    case VT_I1:
+    case VT_I2:
+    case VT_UI2:
+    case VT_BOOL:
+    case VT_I4:
+    case VT_UI4:
+    case VT_R4:
+    case VT_INT:
+    case VT_UINT:
+    case VT_ERROR:
+    case VT_FILETIME:
+    case VT_UI8:
+    case VT_R8:
+    case VT_CY:
+    case VT_DATE:
+      memmove((PROPVARIANT*)this, pSrc, sizeof(PROPVARIANT));
+      return S_OK;
+  }
+  return ::VariantCopy((tagVARIANT *)this, (tagVARIANT *)const_cast<PROPVARIANT *>(pSrc));
+}
+
+
+HRESULT CPropVariant::Attach(PROPVARIANT *pSrc) throw()
+{
+  HRESULT hr = Clear();
+  if (FAILED(hr))
+    return hr;
+  memcpy(this, pSrc, sizeof(PROPVARIANT));
+  pSrc->vt = VT_EMPTY;
+  return S_OK;
+}
+
+HRESULT CPropVariant::Detach(PROPVARIANT *pDest) throw()
+{
+  if (pDest->vt != VT_EMPTY)
+  {
+    HRESULT hr = PropVariant_Clear(pDest);
+    if (FAILED(hr))
+      return hr;
+  }
+  memcpy(pDest, this, sizeof(PROPVARIANT));
+  vt = VT_EMPTY;
+  return S_OK;
+}
+
+HRESULT CPropVariant::InternalClear() throw()
+{
+  if (vt == VT_EMPTY)
+    return S_OK;
+  HRESULT hr = Clear();
+  if (FAILED(hr))
+  {
+    vt = VT_ERROR;
+    scode = hr;
+  }
+  return hr;
+}
+
+void CPropVariant::InternalCopy(const PROPVARIANT *pSrc)
+{
+  HRESULT hr = Copy(pSrc);
+  if (FAILED(hr))
+  {
+    if (hr == E_OUTOFMEMORY)
+      throw kMemException;
+    vt = VT_ERROR;
+    scode = hr;
+  }
+}
+
+int CPropVariant::Compare(const CPropVariant &a) throw()
+{
+  if (vt != a.vt)
+    return MyCompare(vt, a.vt);
+  switch (vt)
+  {
+    case VT_EMPTY: return 0;
+    // case VT_I1: return MyCompare(cVal, a.cVal);
+    case VT_UI1: return MyCompare(bVal, a.bVal);
+    case VT_I2: return MyCompare(iVal, a.iVal);
+    case VT_UI2: return MyCompare(uiVal, a.uiVal);
+    case VT_I4: return MyCompare(lVal, a.lVal);
+    case VT_UI4: return MyCompare(ulVal, a.ulVal);
+    // case VT_UINT: return MyCompare(uintVal, a.uintVal);
+    case VT_I8: return MyCompare(hVal.QuadPart, a.hVal.QuadPart);
+    case VT_UI8: return MyCompare(uhVal.QuadPart, a.uhVal.QuadPart);
+    case VT_BOOL: return -MyCompare(boolVal, a.boolVal);
+    case VT_FILETIME: return ::CompareFileTime(&filetime, &a.filetime);
+    case VT_BSTR: return 0; // Not implemented
+    default: return 0;
+  }
+}
+
+}}