2 // Mono.Unix/UnixGroupInfo.cs
5 // Jonathan Pryor (jonpryor@vt.edu)
7 // (C) 2004-2005 Jonathan Pryor
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 using System.Collections;
36 public sealed class UnixGroupInfo
38 private Native.Group group;
40 public UnixGroupInfo (string group)
42 this.group = new Native.Group ();
44 int r = Native.Syscall.getgrnam_r (group, this.group, out gr);
45 if (r != 0 || gr == null)
46 throw new ArgumentException (Locale.GetText ("invalid group name"), "group");
49 public UnixGroupInfo (long group)
51 this.group = new Native.Group ();
53 int r = Native.Syscall.getgrgid_r (Convert.ToUInt32 (group), this.group, out gr);
54 if (r != 0 || gr == null)
55 throw new ArgumentException (Locale.GetText ("invalid group id"), "group");
58 public UnixGroupInfo (Native.Group group)
60 this.group = CopyGroup (group);
63 private static Native.Group CopyGroup (Native.Group group)
65 Native.Group g = new Native.Group ();
67 g.gr_gid = group.gr_gid;
68 g.gr_mem = group.gr_mem;
69 g.gr_name = group.gr_name;
70 g.gr_passwd = group.gr_passwd;
75 public string GroupName {
76 get {return group.gr_name;}
79 public string Password {
80 get {return group.gr_passwd;}
84 get {return group.gr_gid;}
87 public UnixUserInfo[] GetMembers ()
89 UnixUserInfo[] members = new UnixUserInfo [group.gr_mem.Length];
90 for (int i = 0; i < members.Length; ++i)
91 members [i] = new UnixUserInfo (group.gr_mem [i]);
95 public string[] GetMemberNames ()
97 return (string[]) group.gr_mem.Clone ();
100 public override int GetHashCode ()
102 return group.GetHashCode ();
105 public override bool Equals (object obj)
107 if (obj == null || GetType () != obj.GetType())
109 return group.Equals (((UnixGroupInfo) obj).group);
112 public override string ToString ()
114 return group.ToString();
117 public Native.Group ToGroup ()
119 return CopyGroup (group);
122 public static UnixGroupInfo[] GetLocalGroups ()
124 ArrayList entries = new ArrayList ();
125 lock (Native.Syscall.grp_lock) {
126 if (Native.Syscall.setgrent () != 0)
127 UnixMarshal.ThrowExceptionForLastError ();
130 while ((g = Native.Syscall.getgrent()) != null)
131 entries.Add (new UnixGroupInfo (g));
132 if (Native.Syscall.GetLastError() != (Native.Errno) 0)
133 UnixMarshal.ThrowExceptionForLastError ();
136 Native.Syscall.endgrent ();
139 return (UnixGroupInfo[]) entries.ToArray (typeof(UnixGroupInfo));