// Copyright 2011 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. // +build !cgo,!windows,!plan9 android package user import ( "errors" "fmt" "os" "runtime" "strconv" ) func init() { groupImplemented = false } func current() (*User, error) { u := &User{ Uid: currentUID(), Gid: currentGID(), Username: os.Getenv("USER"), Name: "", // ignored HomeDir: os.Getenv("HOME"), } // On NaCL and Android, return a dummy user instead of failing. switch runtime.GOOS { case "nacl": if u.Uid == "" { u.Uid = "1" } if u.Username == "" { u.Username = "nacl" } if u.HomeDir == "" { u.HomeDir = "/" } case "android": if u.Uid == "" { u.Uid = "1" } if u.Username == "" { u.Username = "android" } if u.HomeDir == "" { u.HomeDir = "/sdcard" } } // cgo isn't available, but if we found the minimum information // without it, use it: if u.Uid != "" && u.Username != "" && u.HomeDir != "" { return u, nil } return u, fmt.Errorf("user: Current not implemented on %s/%s", runtime.GOOS, runtime.GOARCH) } func listGroups(*User) ([]string, error) { if runtime.GOOS == "android" { return nil, errors.New("user: GroupIds not implemented on Android") } return nil, errors.New("user: GroupIds requires cgo") } func currentUID() string { if id := os.Getuid(); id >= 0 { return strconv.Itoa(id) } // Note: Windows returns -1, but this file isn't used on // Windows anyway, so this empty return path shouldn't be // used. return "" } func currentGID() string { if id := os.Getgid(); id >= 0 { return strconv.Itoa(id) } return "" }