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// 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() {
userImplemented = false
groupImplemented = false
}
func current() (*User, error) {
u := &User{
Uid: currentUID(),
Gid: currentGID(),
Username: os.Getenv("USER"),
Name: "", // ignored
HomeDir: os.Getenv("HOME"),
}
if runtime.GOOS == "nacl" {
if u.Uid == "" {
u.Uid = "1"
}
if u.Username == "" {
u.Username = "nacl"
}
if u.HomeDir == "" {
u.HomeDir = "/home/nacl"
}
}
// 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 lookupUser(username string) (*User, error) {
return nil, errors.New("user: Lookup requires cgo")
}
func lookupUserId(uid string) (*User, error) {
return nil, errors.New("user: LookupId requires cgo")
}
func lookupGroup(groupname string) (*Group, error) {
return nil, errors.New("user: LookupGroup requires cgo")
}
func lookupGroupId(string) (*Group, error) {
return nil, errors.New("user: LookupGroupId requires cgo")
}
func listGroups(*User) ([]string, error) {
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 ""
}
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