45 lines
923 B
Go
45 lines
923 B
Go
/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
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*/
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package guid
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import (
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"fmt"
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"syscall"
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"golang.org/x/sys/windows"
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)
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//sys clsidFromString(lpsz *uint16, pclsid *windows.GUID) (hr int32) = ole32.CLSIDFromString
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//
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// FromString parses "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" string to GUID.
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//
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func FromString(str string) (*windows.GUID, error) {
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strUTF16, err := syscall.UTF16PtrFromString(str)
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if err != nil {
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return nil, err
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}
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guid := &windows.GUID{}
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hr := clsidFromString(strUTF16, guid)
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if hr < 0 {
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return nil, syscall.Errno(hr)
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}
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return guid, nil
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}
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//
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// ToString function converts GUID to string
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// "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}".
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//
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// The resulting string is uppercase.
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//
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func ToString(guid *windows.GUID) string {
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return fmt.Sprintf("{%06X-%04X-%04X-%04X-%012X}", guid.Data1, guid.Data2, guid.Data3, guid.Data4[:2], guid.Data4[2:])
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}
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