| // 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 "" |
| } |