diff options
Diffstat (limited to 'vendor/golang.org/x/sys/windows/env_windows.go')
-rw-r--r-- | vendor/golang.org/x/sys/windows/env_windows.go | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/windows/env_windows.go b/vendor/golang.org/x/sys/windows/env_windows.go new file mode 100644 index 0000000..f482a9f --- /dev/null +++ b/vendor/golang.org/x/sys/windows/env_windows.go @@ -0,0 +1,61 @@ +// 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" + "unicode/utf16" + "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 := (*[(1 << 30) - 1]uint16)(unsafe.Pointer(blockp))[:] + for i, v := range entry { + if v == 0 { + entry = entry[:i] + break + } + } + if len(entry) == 0 { + break + } + env = append(env, string(utf16.Decode(entry))) + blockp += 2 * (uintptr(len(entry)) + 1) + } + return env, nil +} + +func Unsetenv(key string) error { + return syscall.Unsetenv(key) +} |