if tt.uid == "" {
			if err == nil {
				t.Errorf("lookupUser(%s): got nil error, expected err", tt.uid)
				continue
			}
			switch terr := err.(type) {
			case UnknownUserError:
				if want := "user: unknown user " + tt.name; terr.Error() != want {
					t.Errorf("lookupUser(%s): got %v, want %v", tt.name, terr, want)
				}
			default:
				t.Errorf("lookupUser(%s): got unexpected error %v", tt.name, terr)
			}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build android

package user

import "errors"

func lookupUser(string) (*User, error) {
	return nil, errors.New("user: Lookup not implemented on android")
}

func lookupUserId(string) (*User, error) {
	return nil, errors.New("user: LookupId not implemented on android")
}

// looking up users, fetching additional attributes etc.
type Provider interface {
	LoginWithUser(username, password string) error
	LoginWithClientID(clientID, clientSecret string) error
	LookupUser(userid string) (User, error)

	}

	uname := string(ubytes)

	u := &User{
		Uid:      uname,
		Gid:      uname,
		Username: uname,
		Name:     uname,
		HomeDir:  os.Getenv("home"),
	}

	return u, nil
}

func lookupUser(username string) (*User, error) {
	return nil, syscall.EPLAN9
}

func lookupUserId(uid string) (*User, error) {
	return nil, syscall.EPLAN9
}

func lookupGroup(groupname string) (*Group, error) {

	if err = json.NewDecoder(resp.Body).Decode(&accessToken); err != nil {
		return err
	}

	k.Lock()
	k.accessToken = accessToken
	k.Unlock()
	return nil
}

// LookupUser lookup user by their userid.
func (k *KeycloakProvider) LookupUser(userid string) (User, error) {
	req, err := http.NewRequest(http.MethodGet, k.adminURL, nil)
	if err != nil {
		return User{}, err
	}

// returned error is of type [UnknownUserError].
func Lookup(username string) (*User, error) {
	if u, err := Current(); err == nil && u.Username == username {
		return u, err
	}
	return lookupUser(username)
}

// LookupId looks up a user by userid. If the user cannot be found, the
// returned error is of type [UnknownUserIdError].
func LookupId(uid string) (*User, error) {

	}
	return pCfg.ClaimPrefix + pCfg.ClaimName
}

// LookupUser lookup userid for the provider
func (r Config) LookupUser(roleArn, userid string) (provider.User, error) {
	// Can safely ignore error here as empty or invalid ARNs will not be
	// mapped.
	arnVal, _ := arn.Parse(roleArn)
	pCfg, ok := r.arnProviderCfgsMap[arnVal]
	if ok {
		user, err := pCfg.provider.LookupUser(userid)

package user

import (
	"fmt"
	"runtime"
	"strconv"
	"strings"
	"syscall"
	"unsafe"
)

func current() (*User, error) {
	return lookupUnixUid(syscall.Getuid())
}

func lookupUser(username string) (*User, error) {
	var pwd _C_struct_passwd
	var found bool
	nameC := make([]byte, len(username)+1)
	copy(nameC, username)

	err := retryWithBuffer(userBuffer, func(buf []byte) syscall.Errno {

}

func lookupGroupId(id string) (*Group, error) {
	f, err := os.Open(groupFile)
	if err != nil {
		return nil, err
	}
	defer f.Close()
	return findGroupId(id, f)
}

func lookupUser(username string) (*User, error) {
	f, err := os.Open(userFile)
	if err != nil {
		return nil, err
	}
	defer f.Close()
	return findUsername(username, f)
}

		dir, e = getProfilesDirectory()
		if e != nil {
			return nil, e
		}
		dir += `\` + username
	}
	return newUser(uid, gid, dir, username, domain)
}

func lookupUser(username string) (*User, error) {
	sid, _, t, e := syscall.LookupSID("", username)
	if e != nil {
		return nil, e
	}
	if t != syscall.SidTypeUser {