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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build linux
package util
// #include "user_lookup.h"
import "C"
import (
"fmt"
"os/user"
)
// userLookup looks up the user in u.DestDir.
func (u Util) userLookup(name string) (*user.User, error) {
res := &C.user_lookup_res_t{}
if ret, err := C.user_lookup(C.CString(u.DestDir),
C.CString(name), res); ret < 0 {
return nil, fmt.Errorf("lookup failed: %v", err)
}
if res.name == nil {
return nil, fmt.Errorf("user %q not found", name)
}
usr := &user.User{
Name: C.GoString(res.name),
Uid: fmt.Sprintf("%d", int(res.uid)),
Gid: fmt.Sprintf("%d", int(res.gid)),
HomeDir: u.JoinPath(C.GoString(res.home)),
}
C.user_lookup_res_free(res)
return usr, nil
}
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