u := &User{
		Uid:      strconv.FormatUint(uint64(_C_pw_uid(pwd)), 10),
		Gid:      strconv.FormatUint(uint64(_C_pw_gid(pwd)), 10),
		Username: _C_GoString(_C_pw_name(pwd)),
		Name:     _C_GoString(_C_pw_gecos(pwd)),
		HomeDir:  _C_GoString(_C_pw_dir(pwd)),
	}
	// The pw_gecos field isn't quite standardized. Some docs
	// say: "It is expected to be a comma separated list of

func _C_pw_dir(p *_C_struct_passwd) *_C_char   { return p.Dir }

func _C_gr_gid(g *_C_struct_group) _C_gid_t  { return g.Gid }
func _C_gr_name(g *_C_struct_group) *_C_char { return g.Name }

func _C_GoString(p *_C_char) string { return unix.GoString(p) }

func _C_getpwnam_r(name *_C_char, buf *_C_char, size _C_size_t) (pwd _C_struct_passwd, found bool, errno syscall.Errno) {
	var result *_C_struct_passwd

func _C_pw_dir(p *_C_struct_passwd) *_C_char   { return p.pw_dir }

func _C_gr_gid(g *_C_struct_group) _C_gid_t  { return g.gr_gid }
func _C_gr_name(g *_C_struct_group) *_C_char { return g.gr_name }

func _C_GoString(p *_C_char) string { return C.GoString(p) }

func _C_getpwnam_r(name *_C_char, buf *_C_char, size _C_size_t) (pwd _C_struct_passwd, found bool, errno syscall.Errno) {
	var f, e _C_int