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Check symlink relative flag and use correct offsets on Windows (#74)

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* Check symlink relative flag and use correct offsets

* Using the correct length this time
This commit is contained in:
Florian Brenot 2020-10-10 08:58:06 +02:00 committed by GitHub
parent 6649653be9
commit c82e11af33
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1 changed files with 5 additions and 2 deletions
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7
include/ghc/filesystem.hpp
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@ -1979,10 +1979,13 @@ GHC_INLINE path resolveSymlink(const path& p, std::error_code& ec)
if (IsReparseTagMicrosoft(reparseData->ReparseTag)) {
switch (reparseData->ReparseTag) {
case IO_REPARSE_TAG_SYMLINK:
result = std::wstring(&reparseData->SymbolicLinkReparseBuffer.PathBuffer[reparseData->SymbolicLinkReparseBuffer.PrintNameOffset / sizeof(WCHAR)], reparseData->SymbolicLinkReparseBuffer.PrintNameLength / sizeof(WCHAR));
result = std::wstring(&reparseData->SymbolicLinkReparseBuffer.PathBuffer[reparseData->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)], reparseData->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR));
if (reparseData->SymbolicLinkReparseBuffer.Flags & 0x1 /*SYMLINK_FLAG_RELATIVE*/) {
result = p.parent_path() / result;
}
break;
case IO_REPARSE_TAG_MOUNT_POINT:
result = std::wstring(&reparseData->MountPointReparseBuffer.PathBuffer[reparseData->MountPointReparseBuffer.PrintNameOffset / sizeof(WCHAR)], reparseData->MountPointReparseBuffer.PrintNameLength / sizeof(WCHAR));
result = std::wstring(&reparseData->MountPointReparseBuffer.PathBuffer[reparseData->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)], reparseData->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR));
break;
default:
break;