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Merge topic 'update-kwsys'

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ba872ea9c3 Merge branch 'upstream-KWSys' into update-kwsys
4d76239a51 KWSys 2018-08-07 (9044518f)

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !2268
This commit is contained in:
Brad King
2018-08-09 11:52:45 +00:00
committed by Kitware Robot
parent 1c773b5d3a ba872ea9c3
commit 575f06e48c
1 changed files with 21 additions and 3 deletions
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Source/kwsys/SystemTools.cxx
+21 -3
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@@ -1197,9 +1197,27 @@ bool SystemTools::FileExists(const std::string& filename)
}
return access(filename.c_str(), R_OK) == 0;
#elif defined(_WIN32)
return (
GetFileAttributesW(Encoding::ToWindowsExtendedPath(filename).c_str()) !=
INVALID_FILE_ATTRIBUTES);
DWORD attr =
GetFileAttributesW(Encoding::ToWindowsExtendedPath(filename).c_str());
if (attr == INVALID_FILE_ATTRIBUTES) {
return false;
}
if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
// Using 0 instead of GENERIC_READ as it allows reading of file attributes
// even if we do not have permission to read the file itself
HANDLE handle =
CreateFileW(Encoding::ToWindowsExtendedPath(filename).c_str(), 0, 0,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (handle == INVALID_HANDLE_VALUE) {
return false;
}
CloseHandle(handle);
}
return true;
#else
// SCO OpenServer 5.0.7/3.2's command has 711 permission.
# if defined(_SCO_DS)