150 lines
3.9 KiB
C#
150 lines
3.9 KiB
C#
//
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// Mono.Unix/UnixGroupInfo.cs
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//
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// Authors:
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// Jonathan Pryor (jonpryor@vt.edu)
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//
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// (C) 2004-2005 Jonathan Pryor
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Text;
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using Mono.Unix;
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namespace Mono.Unix {
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public sealed class UnixGroupInfo
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{
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private Native.Group group;
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public UnixGroupInfo (string group)
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{
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this.group = new Native.Group ();
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Native.Group gr;
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int r = Native.Syscall.getgrnam_r (group, this.group, out gr);
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if (r != 0 || gr == null)
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throw new ArgumentException (Locale.GetText ("invalid group name"), "group");
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}
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public UnixGroupInfo (long group)
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{
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this.group = new Native.Group ();
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Native.Group gr;
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int r = Native.Syscall.getgrgid_r (Convert.ToUInt32 (group), this.group, out gr);
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if (r != 0 || gr == null)
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throw new ArgumentException (Locale.GetText ("invalid group id"), "group");
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}
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public UnixGroupInfo (Native.Group group)
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{
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this.group = CopyGroup (group);
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}
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private static Native.Group CopyGroup (Native.Group group)
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{
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Native.Group g = new Native.Group ();
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g.gr_gid = group.gr_gid;
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g.gr_mem = group.gr_mem;
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g.gr_name = group.gr_name;
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g.gr_passwd = group.gr_passwd;
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return g;
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}
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public string GroupName {
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get {return group.gr_name;}
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}
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public string Password {
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get {return group.gr_passwd;}
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}
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public long GroupId {
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get {return group.gr_gid;}
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}
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public UnixUserInfo[] GetMembers ()
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{
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ArrayList members = new ArrayList (group.gr_mem.Length);
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for (int i = 0; i < group.gr_mem.Length; ++i) {
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try {
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members.Add (new UnixUserInfo (group.gr_mem [i]));
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} catch (ArgumentException) {
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// ignore invalid users
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}
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}
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return (UnixUserInfo[]) members.ToArray (typeof (UnixUserInfo));
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}
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public string[] GetMemberNames ()
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{
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return (string[]) group.gr_mem.Clone ();
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}
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public override int GetHashCode ()
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{
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return group.GetHashCode ();
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}
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public override bool Equals (object obj)
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{
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if (obj == null || GetType () != obj.GetType())
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return false;
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return group.Equals (((UnixGroupInfo) obj).group);
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}
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public override string ToString ()
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{
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return group.ToString();
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}
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public Native.Group ToGroup ()
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{
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return CopyGroup (group);
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}
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public static UnixGroupInfo[] GetLocalGroups ()
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{
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ArrayList entries = new ArrayList ();
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lock (Native.Syscall.grp_lock) {
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if (Native.Syscall.setgrent () != 0)
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UnixMarshal.ThrowExceptionForLastError ();
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try {
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Native.Group g;
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while ((g = Native.Syscall.getgrent()) != null)
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entries.Add (new UnixGroupInfo (g));
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if (Native.Syscall.GetLastError() != (Native.Errno) 0)
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UnixMarshal.ThrowExceptionForLastError ();
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}
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finally {
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Native.Syscall.endgrent ();
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}
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}
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return (UnixGroupInfo[]) entries.ToArray (typeof(UnixGroupInfo));
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}
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}
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}
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// vim: noexpandtab
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