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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
| commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
| tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /other-licenses/7zstub/src/CPP/Common/MyWindows.cpp | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'other-licenses/7zstub/src/CPP/Common/MyWindows.cpp')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/Common/MyWindows.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/Common/MyWindows.cpp b/other-licenses/7zstub/src/CPP/Common/MyWindows.cpp new file mode 100644 index 0000000000..bc9f7be3f5 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/Common/MyWindows.cpp @@ -0,0 +1,145 @@ +// MyWindows.cpp
+
+#include "StdAfx.h"
+
+#ifndef _WIN32
+
+#include <stdlib.h>
+
+#include "MyWindows.h"
+
+static inline void *AllocateForBSTR(size_t cb) { return ::malloc(cb); }
+static inline void FreeForBSTR(void *pv) { ::free(pv);}
+
+/* Win32 uses DWORD (32-bit) type to store size of string before (OLECHAR *) string.
+ We must select CBstrSizeType for another systems (not Win32):
+
+ if (CBstrSizeType is UINT32),
+ then we support only strings smaller than 4 GB.
+ Win32 version always has that limitation.
+
+ if (CBstrSizeType is UINT),
+ (UINT can be 16/32/64-bit)
+ We can support strings larger than 4 GB (if UINT is 64-bit),
+ but sizeof(UINT) can be different in parts compiled by
+ different compilers/settings,
+ and we can't send such BSTR strings between such parts.
+*/
+
+typedef UINT32 CBstrSizeType;
+// typedef UINT CBstrSizeType;
+
+#define k_BstrSize_Max 0xFFFFFFFF
+// #define k_BstrSize_Max UINT_MAX
+// #define k_BstrSize_Max ((UINT)(INT)-1)
+
+BSTR SysAllocStringByteLen(LPCSTR s, UINT len)
+{
+ /* Original SysAllocStringByteLen in Win32 maybe fills only unaligned null OLECHAR at the end.
+ We provide also aligned null OLECHAR at the end. */
+
+ if (len >= (k_BstrSize_Max - sizeof(OLECHAR) - sizeof(OLECHAR) - sizeof(CBstrSizeType)))
+ return NULL;
+
+ UINT size = (len + sizeof(OLECHAR) + sizeof(OLECHAR) - 1) & ~(sizeof(OLECHAR) - 1);
+ void *p = AllocateForBSTR(size + sizeof(CBstrSizeType));
+ if (!p)
+ return NULL;
+ *(CBstrSizeType *)p = (CBstrSizeType)len;
+ BSTR bstr = (BSTR)((CBstrSizeType *)p + 1);
+ if (s)
+ memcpy(bstr, s, len);
+ for (; len < size; len++)
+ ((Byte *)bstr)[len] = 0;
+ return bstr;
+}
+
+BSTR SysAllocStringLen(const OLECHAR *s, UINT len)
+{
+ if (len >= (k_BstrSize_Max - sizeof(OLECHAR) - sizeof(CBstrSizeType)) / sizeof(OLECHAR))
+ return NULL;
+
+ UINT size = len * sizeof(OLECHAR);
+ void *p = AllocateForBSTR(size + sizeof(CBstrSizeType) + sizeof(OLECHAR));
+ if (!p)
+ return NULL;
+ *(CBstrSizeType *)p = (CBstrSizeType)size;
+ BSTR bstr = (BSTR)((CBstrSizeType *)p + 1);
+ if (s)
+ memcpy(bstr, s, size);
+ bstr[len] = 0;
+ return bstr;
+}
+
+BSTR SysAllocString(const OLECHAR *s)
+{
+ if (!s)
+ return 0;
+ const OLECHAR *s2 = s;
+ while (*s2 != 0)
+ s2++;
+ return SysAllocStringLen(s, (UINT)(s2 - s));
+}
+
+void SysFreeString(BSTR bstr)
+{
+ if (bstr)
+ FreeForBSTR((CBstrSizeType *)bstr - 1);
+}
+
+UINT SysStringByteLen(BSTR bstr)
+{
+ if (!bstr)
+ return 0;
+ return *((CBstrSizeType *)bstr - 1);
+}
+
+UINT SysStringLen(BSTR bstr)
+{
+ if (!bstr)
+ return 0;
+ return *((CBstrSizeType *)bstr - 1) / sizeof(OLECHAR);
+}
+
+
+HRESULT VariantClear(VARIANTARG *prop)
+{
+ if (prop->vt == VT_BSTR)
+ SysFreeString(prop->bstrVal);
+ prop->vt = VT_EMPTY;
+ return S_OK;
+}
+
+HRESULT VariantCopy(VARIANTARG *dest, const VARIANTARG *src)
+{
+ HRESULT res = ::VariantClear(dest);
+ if (res != S_OK)
+ return res;
+ if (src->vt == VT_BSTR)
+ {
+ dest->bstrVal = SysAllocStringByteLen((LPCSTR)src->bstrVal,
+ SysStringByteLen(src->bstrVal));
+ if (!dest->bstrVal)
+ return E_OUTOFMEMORY;
+ dest->vt = VT_BSTR;
+ }
+ else
+ *dest = *src;
+ return S_OK;
+}
+
+LONG CompareFileTime(const FILETIME* ft1, const FILETIME* ft2)
+{
+ if (ft1->dwHighDateTime < ft2->dwHighDateTime) return -1;
+ if (ft1->dwHighDateTime > ft2->dwHighDateTime) return 1;
+ if (ft1->dwLowDateTime < ft2->dwLowDateTime) return -1;
+ if (ft1->dwLowDateTime > ft2->dwLowDateTime) return 1;
+ return 0;
+}
+
+DWORD GetLastError()
+{
+ return 0;
+}
+
+#endif
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