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1   /*
2    * Copyright 2016 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. 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, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  
17  package io.netty.channel.unix;
18  
19  /**
20   * User credentials discovered for the peer unix domain socket.
21   *
22   * The PID, UID and GID of the user connected on the other side of the unix domain socket
23   * For details see:
24   * <a href=http://man7.org/linux/man-pages/man7/socket.7.html>SO_PEERCRED</a>
25   */
26  public final class PeerCredentials {
27      private final int pid;
28      private final int uid;
29      private final int gid;
30  
31      // These values are set by JNI via Socket.peerCredentials()
32      PeerCredentials(int p, int u, int g) {
33          pid = p;
34          uid = u;
35          gid = g;
36      }
37  
38      public int pid() {
39          return pid;
40      }
41  
42      public int uid() {
43          return uid;
44      }
45  
46      public int gid() {
47          return gid;
48      }
49  
50      @Override
51      public String toString() {
52          return "UserCredentials["
53          + "pid=" + pid
54          + "; uid=" + uid
55          + "; gid=" + gid
56          + "]";
57      }
58  }