github.com/t2y/goofys@v0.19.1-0.20190123053037-27053313e616/internal/perms.go (about)

     1  // Copyright 2015 - 2017 Ka-Hing Cheung
     2  // Copyright 2015 - 2017 Google Inc. All Rights Reserved.
     3  //
     4  // Licensed under the Apache License, Version 2.0 (the "License");
     5  // you may not use this file except in compliance with the License.
     6  // You may obtain a copy of the License at
     7  //
     8  //     http://www.apache.org/licenses/LICENSE-2.0
     9  //
    10  // Unless required by applicable law or agreed to in writing, software
    11  // distributed under the License is distributed on an "AS IS" BASIS,
    12  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  // See the License for the specific language governing permissions and
    14  // limitations under the License.
    15  
    16  // System permissions-related code.
    17  package internal
    18  
    19  import (
    20  	"os/user"
    21  	"strconv"
    22  )
    23  
    24  // Return the UID and GID of this process.
    25  func MyUserAndGroup() (uid int, gid int) {
    26  	// Ask for the current user.
    27  	user, err := user.Current()
    28  	if err != nil {
    29  		panic(err)
    30  	}
    31  
    32  	// Parse UID.
    33  	uid64, err := strconv.ParseInt(user.Uid, 10, 32)
    34  	if err != nil {
    35  		log.Fatalf("Parsing UID (%s): %v", user.Uid, err)
    36  		return
    37  	}
    38  
    39  	// Parse GID.
    40  	gid64, err := strconv.ParseInt(user.Gid, 10, 32)
    41  	if err != nil {
    42  		log.Fatalf("Parsing GID (%s): %v", user.Gid, err)
    43  		return
    44  	}
    45  
    46  	uid = int(uid64)
    47  	gid = int(gid64)
    48  
    49  	return
    50  }