DecentralizedMedia/DecentralizedMediaClient/Share.cs

// Douglas Thrift
//
// Share
//
// $Id$

using System;
using System.Runtime.InteropServices;

public class Share
{
        public string path { get { return "//" + Environment.MachineName + "/" + share_; } }

        public bool shared
        {
                get
                {
                        IntPtr info = new IntPtr();
                        uint code;

                        switch (code = NetShareGetInfo(null, share_, 2, ref info))
                        {
                        case (uint)NERR.NetNameNotFound:
                                return false;
                        case (uint)ERROR.MORE_DATA:
                        case (uint)NERR.Success:
                                NetApiBufferFree(info);

                                return true;
                        default:
                                throw new Exception(String.Format("NetShareGetInfo() {0} {1}", (ERROR)code, (NERR)code));
                        }
                }
        }

        public Share(string folder)
        {
                folder_ = folder;
                share_ = String.Format("DecentralizedMedia0x{0:X}$", folder.GetHashCode());
        }

        /*~Share()
        {
                Remove();
        }*/

        public void Add()
        {
                if (!shared)
                {
                        SHARE_INFO_2 info = new SHARE_INFO_2();

                        info.shi2_netname = share_;
                        info.shi2_type = STYPE.TEMPORARY;
                        info.shi2_remark = "Decentralized Media Share";
                        info.shi2_permissions = ACCESS.READ | ACCESS.EXEC;
                        info.shi2_max_uses = -1;
                        info.shi2_path = folder_;
                        info.shi2_passwd = null;

                        NetShareAdd(null, 2, info, null);
                }
        }

        public void Remove()
        {
                if (shared)
                        NetShareDel(null, share_, 0);
        }

        enum ERROR : uint { ACCESS_DENIED = 5, NOT_ENOUGH_MEMORY = 8, INVALID_PARAMETER = 87, INVALID_NAME = 123, INVALID_LEVEL = 124, MORE_DATA = 234 }
        enum NERR : uint { Success = 0, BASE = 2100, UnknownDevDir = BASE + 16, RedirectedPath = BASE + 17, DuplicateShare = BASE + 18, BufTooSmall = BASE + 23, NetNameNotFound = BASE + 210, DeviceNotShared = BASE + 211 }
        enum STYPE : uint { DISKTREE = 0, PRINTQ = 1, DEVICE = 2, IPC = 3, TEMPORARY = 0x40000000, SPECIAL = 0x80000000 }
        [Flags]
        enum ACCESS : uint { READ = 0x1, WRITE = 0x2, CREATE = 0x4, EXEC = 0x8, DELETE = 0x10, ATRIB = 0x20, PERM = 0x40, ALL = READ | WRITE | CREATE | EXEC | DELETE | ATRIB | PERM }

        [StructLayout(LayoutKind.Sequential)]
        class SHARE_INFO_2
        {
                [MarshalAs(UnmanagedType.LPWStr)]
                public string shi2_netname;
                public STYPE shi2_type;
                [MarshalAs(UnmanagedType.LPWStr)]
                public string shi2_remark;
                public ACCESS shi2_permissions;
                public int shi2_max_uses;
                public uint shi2_current_uses;
                [MarshalAs(UnmanagedType.LPWStr)]
                public string shi2_path;
                [MarshalAs(UnmanagedType.LPWStr)]
                public string shi2_passwd;
        }

        private string folder_, share_;

        [DllImport("netapi32.dll", EntryPoint = "NetShareAdd")]
        private static extern uint NetShareAdd([In, MarshalAs(UnmanagedType.LPWStr)] string servername, uint level, [In] SHARE_INFO_2 buf, ref uint parm_err);

        [DllImport("netapi32.dll", EntryPoint = "NetShareAdd")]
        private static extern uint NetShareAdd([In, MarshalAs(UnmanagedType.LPWStr)] string servername, uint level, [In] SHARE_INFO_2 buf, [Out] object parm_err);

        [DllImport("netapi32.dll", EntryPoint = "NetShareCheck")]
        private static extern uint NetShareCheck([In, MarshalAs(UnmanagedType.LPWStr)] string servername, [In, MarshalAs(UnmanagedType.LPWStr)] string device, ref STYPE type);

        [DllImport("netapi32.dll", EntryPoint = "NetShareDel")]
        private static extern uint NetShareDel([In, MarshalAs(UnmanagedType.LPWStr)] string servername, [In, MarshalAs(UnmanagedType.LPWStr)] string netname, uint reserved);

        [DllImport("netapi32.dll"/*@"C:\DouglasThrift.net\TestDll\Debug\TestDll.dll"*/, EntryPoint = "NetShareGetInfo")]
        private static extern uint NetShareGetInfo([In, MarshalAs(UnmanagedType.LPWStr)] string servername, [In, MarshalAs(UnmanagedType.LPWStr)] string netname, uint level, ref IntPtr bufptr);

        [DllImport("netapi32.dll"/*@"C:\DouglasThrift.net\TestDll\Debug\TestDll.dll"*/, EntryPoint = "NetApiBufferFree")]
        private static extern uint NetApiBufferFree([In] IntPtr buffer);
}
Revision:	528
Committed:	2005-06-25T21:06:09-07:00 (20 years ago) by douglas
File size:	3764 byte(s)
Log Message:	Yay!
#	User	Rev	Content
1	douglas	527	// Douglas Thrift
2			//
3			// Share
4			//
5			// $Id$
6
7			using System;
8			using System.Runtime.InteropServices;
9
10			public class Share
11			{
12			public string path { get { return "//" + Environment.MachineName + "/" + share_; } }
13
14	douglas	528	public bool shared
15			{
16			get
17			{
18			IntPtr info = new IntPtr();
19			uint code;
20
21			switch (code = NetShareGetInfo(null, share_, 2, ref info))
22			{
23			case (uint)NERR.NetNameNotFound:
24			return false;
25			case (uint)ERROR.MORE_DATA:
26			case (uint)NERR.Success:
27			NetApiBufferFree(info);
28
29			return true;
30			default:
31			throw new Exception(String.Format("NetShareGetInfo() {0} {1}", (ERROR)code, (NERR)code));
32			}
33			}
34			}
35
36	douglas	527	public Share(string folder)
37			{
38			folder_ = folder;
39			share_ = String.Format("DecentralizedMedia0x{0:X}$", folder.GetHashCode());
40			}
41
42	douglas	528	/*~Share()
43			{
44			Remove();
45			}*/
46
47	douglas	527	public void Add()
48			{
49	douglas	528	if (!shared)
50	douglas	527	{
51			SHARE_INFO_2 info = new SHARE_INFO_2();
52
53			info.shi2_netname = share_;
54	douglas	528	info.shi2_type = STYPE.TEMPORARY;
55	douglas	527	info.shi2_remark = "Decentralized Media Share";
56			info.shi2_permissions = ACCESS.READ \| ACCESS.EXEC;
57			info.shi2_max_uses = -1;
58			info.shi2_path = folder_;
59			info.shi2_passwd = null;
60
61	douglas	528	NetShareAdd(null, 2, info, null);
62	douglas	527	}
63			}
64
65	douglas	528	public void Remove()
66	douglas	527	{
67	douglas	528	if (shared)
68			NetShareDel(null, share_, 0);
69	douglas	527	}
70
71	douglas	528	enum ERROR : uint { ACCESS_DENIED = 5, NOT_ENOUGH_MEMORY = 8, INVALID_PARAMETER = 87, INVALID_NAME = 123, INVALID_LEVEL = 124, MORE_DATA = 234 }
72			enum NERR : uint { Success = 0, BASE = 2100, UnknownDevDir = BASE + 16, RedirectedPath = BASE + 17, DuplicateShare = BASE + 18, BufTooSmall = BASE + 23, NetNameNotFound = BASE + 210, DeviceNotShared = BASE + 211 }
73			enum STYPE : uint { DISKTREE = 0, PRINTQ = 1, DEVICE = 2, IPC = 3, TEMPORARY = 0x40000000, SPECIAL = 0x80000000 }
74	douglas	527	[Flags]
75	douglas	528	enum ACCESS : uint { READ = 0x1, WRITE = 0x2, CREATE = 0x4, EXEC = 0x8, DELETE = 0x10, ATRIB = 0x20, PERM = 0x40, ALL = READ \| WRITE \| CREATE \| EXEC \| DELETE \| ATRIB \| PERM }
76	douglas	527
77			[StructLayout(LayoutKind.Sequential)]
78	douglas	528	class SHARE_INFO_2
79	douglas	527	{
80			[MarshalAs(UnmanagedType.LPWStr)]
81			public string shi2_netname;
82			public STYPE shi2_type;
83			[MarshalAs(UnmanagedType.LPWStr)]
84			public string shi2_remark;
85			public ACCESS shi2_permissions;
86	douglas	528	public int shi2_max_uses;
87			public uint shi2_current_uses;
88	douglas	527	[MarshalAs(UnmanagedType.LPWStr)]
89			public string shi2_path;
90			[MarshalAs(UnmanagedType.LPWStr)]
91			public string shi2_passwd;
92			}
93
94			private string folder_, share_;
95
96	douglas	528	[DllImport("netapi32.dll", EntryPoint = "NetShareAdd")]
97			private static extern uint NetShareAdd([In, MarshalAs(UnmanagedType.LPWStr)] string servername, uint level, [In] SHARE_INFO_2 buf, ref uint parm_err);
98	douglas	527
99	douglas	528	[DllImport("netapi32.dll", EntryPoint = "NetShareAdd")]
100			private static extern uint NetShareAdd([In, MarshalAs(UnmanagedType.LPWStr)] string servername, uint level, [In] SHARE_INFO_2 buf, [Out] object parm_err);
101	douglas	527
102	douglas	528	[DllImport("netapi32.dll", EntryPoint = "NetShareCheck")]
103			private static extern uint NetShareCheck([In, MarshalAs(UnmanagedType.LPWStr)] string servername, [In, MarshalAs(UnmanagedType.LPWStr)] string device, ref STYPE type);
104
105			[DllImport("netapi32.dll", EntryPoint = "NetShareDel")]
106			private static extern uint NetShareDel([In, MarshalAs(UnmanagedType.LPWStr)] string servername, [In, MarshalAs(UnmanagedType.LPWStr)] string netname, uint reserved);
107
108			[DllImport("netapi32.dll"/@"C:\DouglasThrift.net\TestDll\Debug\TestDll.dll"/, EntryPoint = "NetShareGetInfo")]
109			private static extern uint NetShareGetInfo([In, MarshalAs(UnmanagedType.LPWStr)] string servername, [In, MarshalAs(UnmanagedType.LPWStr)] string netname, uint level, ref IntPtr bufptr);
110
111			[DllImport("netapi32.dll"/@"C:\DouglasThrift.net\TestDll\Debug\TestDll.dll"/, EntryPoint = "NetApiBufferFree")]
112			private static extern uint NetApiBufferFree([In] IntPtr buffer);
113	douglas	527	}