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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Windows environment variables.
package windows
import (
"syscall"
"unsafe"
)
func Getenv(key string) (value string, found bool) {
return syscall.Getenv(key)
}
func Setenv(key, value string) error {
return syscall.Setenv(key, value)
}
func Clearenv() {
syscall.Clearenv()
}
func Environ() []string {
return syscall.Environ()
}
// Returns a default environment associated with the token, rather than the current
// process. If inheritExisting is true, then this environment also inherits the
// environment of the current process.
func (token Token) Environ(inheritExisting bool) (env []string, err error) {
var block *uint16
err = CreateEnvironmentBlock(&block, token, inheritExisting)
if err != nil {
return nil, err
}
defer DestroyEnvironmentBlock(block)
blockp := uintptr(unsafe.Pointer(block))
for {
entry := UTF16PtrToString((*uint16)(unsafe.Pointer(blockp)))
if len(entry) == 0 {
break
}
env = append(env, entry)
blockp += 2 * (uintptr(len(entry)) + 1)
}
return env, nil
}
func Unsetenv(key string) error {
return syscall.Unsetenv(key)
}
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