diff options
Diffstat (limited to 'Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs')
| -rw-r--r-- | Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs | 152 |
1 files changed, 70 insertions, 82 deletions
diff --git a/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs b/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs index 9a0020de7..16f39daf7 100644 --- a/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs +++ b/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs @@ -1,4 +1,4 @@ -using System.Collections.Generic; +using System.Collections.Generic; using System.IO; using System.Net.Sockets; using System.Numerics; @@ -33,7 +33,7 @@ namespace System.Net { get { - BigInteger uintNetwork = this._ipaddress & this._netmask; + var uintNetwork = this._ipaddress & this._netmask; return uintNetwork; } } @@ -61,7 +61,7 @@ namespace System.Net { int width = this._family == Sockets.AddressFamily.InterNetwork ? 4 : 16; - BigInteger uintBroadcast = this._network + this._netmask.PositiveReverse(width); + var uintBroadcast = this._network + this._netmask.PositiveReverse(width); return uintBroadcast; } } @@ -88,7 +88,7 @@ namespace System.Net { get { - BigInteger fisrt = this._family == Sockets.AddressFamily.InterNetworkV6 + var fisrt = this._family == Sockets.AddressFamily.InterNetworkV6 ? this._network : (this.Usable <= 0) ? this._network : this._network + 1; return IPNetwork.ToIPAddress(fisrt, this._family); @@ -102,7 +102,7 @@ namespace System.Net { get { - BigInteger last = this._family == Sockets.AddressFamily.InterNetworkV6 + var last = this._family == Sockets.AddressFamily.InterNetworkV6 ? this._broadcast : (this.Usable <= 0) ? this._network : this._broadcast - 1; return IPNetwork.ToIPAddress(last, this._family); @@ -122,8 +122,8 @@ namespace System.Net return this.Total; } byte[] mask = new byte[] { 0xff, 0xff, 0xff, 0xff, 0x00 }; - BigInteger bmask = new BigInteger(mask); - BigInteger usableIps = (_cidr > 30) ? 0 : ((bmask >> _cidr) - 1); + var bmask = new BigInteger(mask); + var usableIps = (_cidr > 30) ? 0 : ((bmask >> _cidr) - 1); return usableIps; } } @@ -137,7 +137,7 @@ namespace System.Net { int max = this._family == Sockets.AddressFamily.InterNetwork ? 32 : 128; - BigInteger count = BigInteger.Pow(2, (max - _cidr)); + var count = BigInteger.Pow(2, (max - _cidr)); return count; } } @@ -523,9 +523,8 @@ namespace System.Net return; } - BigInteger uintIpAddress = IPNetwork.ToBigInteger(ipaddress); - byte? cidr2 = null; - bool parsed = IPNetwork.TryToCidr(netmask, out cidr2); + var uintIpAddress = IPNetwork.ToBigInteger(ipaddress); + bool parsed = IPNetwork.TryToCidr(netmask, out var cidr2); if (parsed == false) { if (tryParse == false) @@ -537,7 +536,7 @@ namespace System.Net } byte cidr = (byte)cidr2; - IPNetwork ipnet = new IPNetwork(uintIpAddress, ipaddress.AddressFamily, cidr); + var ipnet = new IPNetwork(uintIpAddress, ipaddress.AddressFamily, cidr); ipnetwork = ipnet; return; @@ -615,8 +614,7 @@ namespace System.Net /// <returns></returns> public static BigInteger ToBigInteger(IPAddress ipaddress) { - BigInteger? uintIpAddress = null; - IPNetwork.InternalToBigInteger(false, ipaddress, out uintIpAddress); + IPNetwork.InternalToBigInteger(false, ipaddress, out var uintIpAddress); return (BigInteger)uintIpAddress; } @@ -630,8 +628,7 @@ namespace System.Net /// <returns></returns> public static bool TryToBigInteger(IPAddress ipaddress, out BigInteger? uintIpAddress) { - BigInteger? uintIpAddress2 = null; - IPNetwork.InternalToBigInteger(true, ipaddress, out uintIpAddress2); + IPNetwork.InternalToBigInteger(true, ipaddress, out var uintIpAddress2); bool parsed = (uintIpAddress2 != null); uintIpAddress = uintIpAddress2; return parsed; @@ -681,9 +678,7 @@ namespace System.Net /// <returns></returns> public static BigInteger ToUint(byte cidr, AddressFamily family) { - - BigInteger? uintNetmask = null; - IPNetwork.InternalToBigInteger(false, cidr, family, out uintNetmask); + IPNetwork.InternalToBigInteger(false, cidr, family, out var uintNetmask); return (BigInteger)uintNetmask; } @@ -695,9 +690,7 @@ namespace System.Net /// <returns></returns> public static bool TryToUint(byte cidr, AddressFamily family, out BigInteger? uintNetmask) { - - BigInteger? uintNetmask2 = null; - IPNetwork.InternalToBigInteger(true, cidr, family, out uintNetmask2); + IPNetwork.InternalToBigInteger(true, cidr, family, out var uintNetmask2); bool parsed = (uintNetmask2 != null); uintNetmask = uintNetmask2; return parsed; @@ -754,7 +747,7 @@ namespace System.Net return; } - BigInteger mask = new BigInteger(new byte[] { + var mask = new BigInteger(new byte[] { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, @@ -762,7 +755,7 @@ namespace System.Net 0x00 }); - BigInteger masked = cidr == 0 ? 0 : mask << (128 - cidr); + var masked = cidr == 0 ? 0 : mask << (128 - cidr); byte[] m = masked.ToByteArray(); byte[] bmask = new byte[17]; int copy = m.Length > 16 ? 16 : m.Length; @@ -812,8 +805,7 @@ namespace System.Net /// <returns></returns> public static byte ToCidr(IPAddress netmask) { - byte? cidr = null; - IPNetwork.InternalToCidr(false, netmask, out cidr); + IPNetwork.InternalToCidr(false, netmask, out var cidr); return (byte)cidr; } @@ -827,8 +819,7 @@ namespace System.Net /// <returns></returns> public static bool TryToCidr(IPAddress netmask, out byte? cidr) { - byte? cidr2 = null; - IPNetwork.InternalToCidr(true, netmask, out cidr2); + IPNetwork.InternalToCidr(true, netmask, out var cidr2); bool parsed = (cidr2 != null); cidr = cidr2; return parsed; @@ -846,8 +837,8 @@ namespace System.Net cidr = null; return; } - BigInteger? uintNetmask2 = null; - bool parsed = IPNetwork.TryToBigInteger(netmask, out uintNetmask2); + + bool parsed = IPNetwork.TryToBigInteger(netmask, out var uintNetmask2); /// 20180217 lduchosal /// impossible to reach code. @@ -858,10 +849,9 @@ namespace System.Net /// cidr = null; /// return; /// } - BigInteger uintNetmask = (BigInteger)uintNetmask2; + var uintNetmask = (BigInteger)uintNetmask2; - byte? cidr2 = null; - IPNetwork.InternalToCidr(tryParse, uintNetmask, netmask.AddressFamily, out cidr2); + IPNetwork.InternalToCidr(tryParse, uintNetmask, netmask.AddressFamily, out var cidr2); cidr = cidr2; return; @@ -951,8 +941,8 @@ namespace System.Net return; } - BigInteger mask = IPNetwork.ToUint(cidr, family); - IPAddress netmask2 = IPNetwork.ToIPAddress(mask, family); + var mask = IPNetwork.ToUint(cidr, family); + var netmask2 = IPNetwork.ToIPAddress(mask, family); netmask = netmask2; return; @@ -990,7 +980,7 @@ namespace System.Net /// <returns></returns> public static uint BitsSet(IPAddress netmask) { - BigInteger uintNetmask = IPNetwork.ToBigInteger(netmask); + var uintNetmask = IPNetwork.ToBigInteger(netmask); uint bits = IPNetwork.BitsSet(uintNetmask, netmask.AddressFamily); return bits; } @@ -1013,7 +1003,7 @@ namespace System.Net { throw new ArgumentNullException(nameof(netmask)); } - BigInteger uintNetmask = IPNetwork.ToBigInteger(netmask); + var uintNetmask = IPNetwork.ToBigInteger(netmask); bool valid = IPNetwork.InternalValidNetmask(uintNetmask, netmask.AddressFamily); return valid; } @@ -1042,7 +1032,7 @@ namespace System.Net 0x00 }); - BigInteger neg = ((~netmask) & (mask)); + var neg = ((~netmask) & (mask)); bool isNetmask = ((neg + 1) & neg) == 0; return isNetmask; @@ -1068,7 +1058,7 @@ namespace System.Net Array.Reverse(bytes2); byte[] sized = Resize(bytes2, family); - IPAddress ip = new IPAddress(sized); + var ip = new IPAddress(sized); return ip; } @@ -1122,9 +1112,9 @@ namespace System.Net return false; } - BigInteger uintNetwork = _network; - BigInteger uintBroadcast = _broadcast; - BigInteger uintAddress = IPNetwork.ToBigInteger(ipaddress); + var uintNetwork = _network; + var uintBroadcast = _broadcast; + var uintAddress = IPNetwork.ToBigInteger(ipaddress); bool contains = (uintAddress >= uintNetwork && uintAddress <= uintBroadcast); @@ -1146,11 +1136,11 @@ namespace System.Net throw new ArgumentNullException(nameof(network2)); } - BigInteger uintNetwork = _network; - BigInteger uintBroadcast = _broadcast; + var uintNetwork = _network; + var uintBroadcast = _broadcast; - BigInteger uintFirst = network2._network; - BigInteger uintLast = network2._broadcast; + var uintFirst = network2._network; + var uintLast = network2._broadcast; bool contains = (uintFirst >= uintNetwork && uintLast <= uintBroadcast); @@ -1175,11 +1165,11 @@ namespace System.Net throw new ArgumentNullException(nameof(network2)); } - BigInteger uintNetwork = _network; - BigInteger uintBroadcast = _broadcast; + var uintNetwork = _network; + var uintBroadcast = _broadcast; - BigInteger uintFirst = network2._network; - BigInteger uintLast = network2._broadcast; + var uintFirst = network2._network; + var uintLast = network2._broadcast; bool overlap = (uintFirst >= uintNetwork && uintFirst <= uintBroadcast) @@ -1428,8 +1418,8 @@ namespace System.Net return; } - IPNetwork first = (network1._network < network2._network) ? network1 : network2; - IPNetwork last = (network1._network > network2._network) ? network1 : network2; + var first = (network1._network < network2._network) ? network1 : network2; + var last = (network1._network > network2._network) ? network1 : network2; /// Starting from here : /// network1 and network2 have the same cidr, @@ -1449,10 +1439,10 @@ namespace System.Net return; } - BigInteger uintSupernet = first._network; + var uintSupernet = first._network; byte cidrSupernet = (byte)(first._cidr - 1); - IPNetwork networkSupernet = new IPNetwork(uintSupernet, first._family, cidrSupernet); + var networkSupernet = new IPNetwork(uintSupernet, first._family, cidrSupernet); if (networkSupernet._network != first._network) { if (trySupernet == false) @@ -1491,8 +1481,7 @@ namespace System.Net /// <returns></returns> public static IPNetwork[] Supernet(IPNetwork[] ipnetworks) { - IPNetwork[] supernet; - InternalSupernet(false, ipnetworks, out supernet); + InternalSupernet(false, ipnetworks, out var supernet); return supernet; } @@ -1535,9 +1524,9 @@ namespace System.Net return true; } - List<IPNetwork> supernetted = new List<IPNetwork>(); - List<IPNetwork> ipns = IPNetwork.Array2List(ipnetworks); - Stack<IPNetwork> current = IPNetwork.List2Stack(ipns); + var supernetted = new List<IPNetwork>(); + var ipns = IPNetwork.Array2List(ipnetworks); + var current = IPNetwork.List2Stack(ipns); int previousCount = 0; int currentCount = current.Count; @@ -1547,8 +1536,8 @@ namespace System.Net supernetted.Clear(); while (current.Count > 1) { - IPNetwork ipn1 = current.Pop(); - IPNetwork ipn2 = current.Peek(); + var ipn1 = current.Pop(); + var ipn2 = current.Peek(); IPNetwork outNetwork = null; bool success = ipn1.TrySupernet(ipn2, out outNetwork); @@ -1578,7 +1567,7 @@ namespace System.Net private static Stack<IPNetwork> List2Stack(List<IPNetwork> list) { - Stack<IPNetwork> stack = new Stack<IPNetwork>(); + var stack = new Stack<IPNetwork>(); list.ForEach(new Action<IPNetwork>( delegate (IPNetwork ipn) { @@ -1590,7 +1579,7 @@ namespace System.Net private static List<IPNetwork> Array2List(IPNetwork[] array) { - List<IPNetwork> ipns = new List<IPNetwork>(); + var ipns = new List<IPNetwork>(); ipns.AddRange(array); IPNetwork.RemoveNull(ipns); ipns.Sort(new Comparison<IPNetwork>( @@ -1642,14 +1631,12 @@ namespace System.Net throw new ArgumentNullException(nameof(end)); } - IPAddress startIP; - if (!IPAddress.TryParse(start, out startIP)) + if (!IPAddress.TryParse(start, out var startIP)) { throw new ArgumentException("start"); } - IPAddress endIP; - if (!IPAddress.TryParse(end, out endIP)) + if (!IPAddress.TryParse(end, out var endIP)) { throw new ArgumentException("end"); } @@ -1659,10 +1646,10 @@ namespace System.Net throw new NotSupportedException("MixedAddressFamily"); } - IPNetwork ipnetwork = new IPNetwork(0, startIP.AddressFamily, 0); + var ipnetwork = new IPNetwork(0, startIP.AddressFamily, 0); for (byte cidr = 32; cidr >= 0; cidr--) { - IPNetwork wideSubnet = IPNetwork.Parse(start, cidr); + var wideSubnet = IPNetwork.Parse(start, cidr); if (wideSubnet.Contains(endIP)) { ipnetwork = wideSubnet; @@ -1707,8 +1694,9 @@ namespace System.Net } - IPNetwork[] nnin = Array.FindAll<IPNetwork>(ipnetworks, new Predicate<IPNetwork>( - delegate (IPNetwork ipnet) { + IPNetwork[] nnin = Array.FindAll(ipnetworks, new Predicate<IPNetwork>( + delegate (IPNetwork ipnet) + { return ipnet != null; } )); @@ -1725,19 +1713,19 @@ namespace System.Net if (nnin.Length == 1) { - IPNetwork ipn0 = nnin[0]; + var ipn0 = nnin[0]; ipnetwork = ipn0; return; } - Array.Sort<IPNetwork>(nnin); - IPNetwork nnin0 = nnin[0]; - BigInteger uintNnin0 = nnin0._ipaddress; + Array.Sort(nnin); + var nnin0 = nnin[0]; + var uintNnin0 = nnin0._ipaddress; - IPNetwork nninX = nnin[nnin.Length - 1]; - IPAddress ipaddressX = nninX.Broadcast; + var nninX = nnin[nnin.Length - 1]; + var ipaddressX = nninX.Broadcast; - AddressFamily family = ipnetworks[0]._family; + var family = ipnetworks[0]._family; foreach (var ipnx in ipnetworks) { if (ipnx._family != family) @@ -1746,10 +1734,10 @@ namespace System.Net } } - IPNetwork ipn = new IPNetwork(0, family, 0); + var ipn = new IPNetwork(0, family, 0); for (byte cidr = nnin0._cidr; cidr >= 0; cidr--) { - IPNetwork wideSubnet = new IPNetwork(uintNnin0, family, cidr); + var wideSubnet = new IPNetwork(uintNnin0, family, cidr); if (wideSubnet.Contains(ipaddressX)) { ipn = wideSubnet; @@ -1772,7 +1760,7 @@ namespace System.Net public string Print() { - StringWriter sw = new StringWriter(); + var sw = new StringWriter(); sw.WriteLine("IPNetwork : {0}", ToString()); sw.WriteLine("Network : {0}", Network); @@ -1818,7 +1806,7 @@ namespace System.Net cidr = 64; return true; } - BigInteger uintIPAddress = IPNetwork.ToBigInteger(ipaddress); + var uintIPAddress = IPNetwork.ToBigInteger(ipaddress); uintIPAddress = uintIPAddress >> 29; if (uintIPAddress <= 3) { |