go/src/runtime/env_posix.go

func gogetenv(key string) string { … }

// envKeyEqual reports whether a == b, with ASCII-only case insensitivity
// on Windows. The two strings must have the same length.
func envKeyEqual(a, b string) bool { … }

func lowerASCII(c byte) byte { … }

var _cgo_setenv …

var _cgo_unsetenv …

// Update the C environment if cgo is loaded.
func setenv_c(k string, v string) { … }

// Update the C environment if cgo is loaded.
func unsetenv_c(k string) { … }

func cstring(s string) unsafe.Pointer { … }