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/*
* Copyright (c) 2014-2017 MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the license is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package wrappers
import (
"syscall"
"unsafe"
)
var (
modversion = syscall.NewLazyDLL("version.dll")
procGetFileVersionInfoSizeW = modversion.NewProc("GetFileVersionInfoSizeW")
procGetFileVersionInfoW = modversion.NewProc("GetFileVersionInfoW")
procVerQueryValueW = modversion.NewProc("VerQueryValueW")
)
func GetFileVersionInfo(filename *uint16, handle uint32, len uint32, data *byte) error {
r1, _, e1 := syscall.Syscall6(
procGetFileVersionInfoW.Addr(),
4,
uintptr(unsafe.Pointer(filename)),
uintptr(handle),
uintptr(len),
uintptr(unsafe.Pointer(data)),
0,
0)
if r1 == 0 {
if e1 != ERROR_SUCCESS {
return e1
} else {
return syscall.EINVAL
}
}
return nil
}
func GetFileVersionInfoSize(filename *uint16, handle *uint32) (uint32, error) {
r1, _, e1 := syscall.Syscall(
procGetFileVersionInfoSizeW.Addr(),
2,
uintptr(unsafe.Pointer(filename)),
uintptr(unsafe.Pointer(handle)),
0)
if r1 == 0 {
if e1 != ERROR_SUCCESS {
return 0, e1
} else {
return 0, syscall.EINVAL
}
}
return uint32(r1), nil
}
func VerQueryValue(block *byte, subBlock *uint16, buffer **byte, len *uint32) error {
r1, _, e1 := syscall.Syscall6(
procVerQueryValueW.Addr(),
4,
uintptr(unsafe.Pointer(block)),
uintptr(unsafe.Pointer(subBlock)),
uintptr(unsafe.Pointer(buffer)),
uintptr(unsafe.Pointer(len)),
0,
0)
if r1 == 0 {
if e1 != ERROR_SUCCESS {
return e1
} else {
return syscall.EINVAL
}
}
return nil
}
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