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os: os: make Stat("*.txt") fail on windows
Fixes #24999 Change-Id: Ie0bb6a6e0fa3992cdd272d42347af65ae7c95463 Reviewed-on: https://go-review.googlesource.com/108755 TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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@ -12,6 +12,7 @@ import (
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const (
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ERROR_SHARING_VIOLATION syscall.Errno = 32
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ERROR_INVALID_NAME syscall.Errno = 123
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ERROR_NO_UNICODE_TRANSLATION syscall.Errno = 1113
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)
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@ -1055,3 +1055,11 @@ func isWindowsDeveloperModeActive() bool {
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return val != 0
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}
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// TestStatOfInvalidName is regression test for issue #24999.
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func TestStatOfInvalidName(t *testing.T) {
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_, err := os.Stat("*.go")
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if err == nil {
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t.Fatal(`os.Stat("*.go") unexpectedly succeeded`)
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}
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}
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@ -99,6 +99,14 @@ func newFileStatFromGetFileAttributesExOrFindFirstFile(path string, pathp *uint1
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FileSizeLow: fa.FileSizeLow,
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}, nil
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}
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// GetFileAttributesEx returns ERROR_INVALID_NAME if called
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// for invalid file name like "*.txt". Do not attempt to call
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// FindFirstFile with "*.txt", because FindFirstFile will
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// succeed. So just return ERROR_INVALID_NAME instead.
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// see https://golang.org/issue/24999 for details.
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if errno, _ := err.(syscall.Errno); errno == windows.ERROR_INVALID_NAME {
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return nil, &PathError{"GetFileAttributesEx", path, err}
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}
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// We might have symlink here. But some directories also have
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// FileAttributes FILE_ATTRIBUTE_REPARSE_POINT bit set.
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// For example, OneDrive directory is like that
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