Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Net / System / Net / NetworkInformation / PhysicalAddress.cs / 1305376 / PhysicalAddress.cs
using System; using System.Text; namespace System.Net.NetworkInformation { public class PhysicalAddress { byte[] address = null; bool changed = true; int hash = 0; // FxCop: if this class is ever made mutable (like, given any non-readonly fields), // the readonly should be removed from the None decoration. public static readonly PhysicalAddress None = new PhysicalAddress(new byte[0]); // constructors public PhysicalAddress(byte[] address){ this.address = address; } public override int GetHashCode() { if (changed) { changed = false; hash = 0; int i; int size = address.Length & ~3; for (i = 0; i < size; i += 4) { hash ^= (int)address[i] | ((int)address[i+1] << 8) | ((int)address[i+2] << 16) | ((int)address[i+3] << 24); } if ((address.Length & 3) != 0) { int remnant = 0; int shift = 0; for (; i < address.Length; ++i) { remnant |= ((int)address[i]) << shift; shift += 8; } hash ^= remnant; } } return hash; } public override bool Equals(object comparand) { PhysicalAddress address = comparand as PhysicalAddress; if (address == null) return false; if (this.address.Length != address.address.Length) { return false; } for (int i = 0; i < address.address.Length; i++) { if(this.address[i] != address.address[i]) return false; } return true; } public override string ToString(){ StringBuilder addressString = new StringBuilder(); foreach (byte value in address ) { int tmp = (value >> 4) & 0x0F; for (int i = 0; i<2; i++) { if (tmp < 0x0A ) { addressString.Append((char)(tmp+0x30)); } else{ addressString.Append((char)(tmp+0x37)); } tmp = ((int)value & 0x0F); } } return addressString.ToString(); } public byte[] GetAddressBytes(){ byte[] tmp = new byte[address.Length]; Buffer.BlockCopy(address,0,tmp,0,address.Length); return tmp; } public static PhysicalAddress Parse(string address) { int validCount = 0; bool hasDashes = false; byte[] buffer = null; if(address == null) { return PhysicalAddress.None; } //has dashes? if (address.IndexOf('-') >= 0 ){ hasDashes = true; buffer = new byte[(address.Length+1)/3]; } else{ if(address.Length % 2 > 0){ //should be even throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } buffer = new byte[address.Length/2]; } int j = 0; for (int i = 0; i < address.Length; i++ ) { int value = (int)address[i]; if (value >= 0x30 && value <=0x39){ value -= 0x30; } else if (value >= 0x41 && value <= 0x46) { value -= 0x37; } else if (value == (int)'-'){ if (validCount == 2) { validCount = 0; continue; } else{ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } } else{ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } //we had too many characters after the last dash if(hasDashes && validCount >= 2){ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } if (validCount%2 == 0) { buffer[j] = (byte) (value << 4); } else{ buffer[j++] |= (byte) value; } validCount++; } //we too few characters after the last dash if(validCount < 2){ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } return new PhysicalAddress(buffer); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Text; namespace System.Net.NetworkInformation { public class PhysicalAddress { byte[] address = null; bool changed = true; int hash = 0; // FxCop: if this class is ever made mutable (like, given any non-readonly fields), // the readonly should be removed from the None decoration. public static readonly PhysicalAddress None = new PhysicalAddress(new byte[0]); // constructors public PhysicalAddress(byte[] address){ this.address = address; } public override int GetHashCode() { if (changed) { changed = false; hash = 0; int i; int size = address.Length & ~3; for (i = 0; i < size; i += 4) { hash ^= (int)address[i] | ((int)address[i+1] << 8) | ((int)address[i+2] << 16) | ((int)address[i+3] << 24); } if ((address.Length & 3) != 0) { int remnant = 0; int shift = 0; for (; i < address.Length; ++i) { remnant |= ((int)address[i]) << shift; shift += 8; } hash ^= remnant; } } return hash; } public override bool Equals(object comparand) { PhysicalAddress address = comparand as PhysicalAddress; if (address == null) return false; if (this.address.Length != address.address.Length) { return false; } for (int i = 0; i < address.address.Length; i++) { if(this.address[i] != address.address[i]) return false; } return true; } public override string ToString(){ StringBuilder addressString = new StringBuilder(); foreach (byte value in address ) { int tmp = (value >> 4) & 0x0F; for (int i = 0; i<2; i++) { if (tmp < 0x0A ) { addressString.Append((char)(tmp+0x30)); } else{ addressString.Append((char)(tmp+0x37)); } tmp = ((int)value & 0x0F); } } return addressString.ToString(); } public byte[] GetAddressBytes(){ byte[] tmp = new byte[address.Length]; Buffer.BlockCopy(address,0,tmp,0,address.Length); return tmp; } public static PhysicalAddress Parse(string address) { int validCount = 0; bool hasDashes = false; byte[] buffer = null; if(address == null) { return PhysicalAddress.None; } //has dashes? if (address.IndexOf('-') >= 0 ){ hasDashes = true; buffer = new byte[(address.Length+1)/3]; } else{ if(address.Length % 2 > 0){ //should be even throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } buffer = new byte[address.Length/2]; } int j = 0; for (int i = 0; i < address.Length; i++ ) { int value = (int)address[i]; if (value >= 0x30 && value <=0x39){ value -= 0x30; } else if (value >= 0x41 && value <= 0x46) { value -= 0x37; } else if (value == (int)'-'){ if (validCount == 2) { validCount = 0; continue; } else{ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } } else{ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } //we had too many characters after the last dash if(hasDashes && validCount >= 2){ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } if (validCount%2 == 0) { buffer[j] = (byte) (value << 4); } else{ buffer[j++] |= (byte) value; } validCount++; } //we too few characters after the last dash if(validCount < 2){ throw new FormatException(SR.GetString(SR.net_bad_mac_address)); } return new PhysicalAddress(buffer); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ScalarConstant.cs
- PasswordPropertyTextAttribute.cs
- dsa.cs
- Int32CAMarshaler.cs
- BitHelper.cs
- XpsInterleavingPolicy.cs
- CacheDependency.cs
- DependentList.cs
- ConfigsHelper.cs
- PenContexts.cs
- SynchronizingStream.cs
- MULTI_QI.cs
- SubstitutionResponseElement.cs
- ExclusiveTcpListener.cs
- CoTaskMemHandle.cs
- IMembershipProvider.cs
- CollectionBuilder.cs
- ImageDesigner.cs
- ZipIOCentralDirectoryFileHeader.cs
- VerificationAttribute.cs
- ImportException.cs
- UICuesEvent.cs
- Quaternion.cs
- TimeoutException.cs
- UserPrincipalNameElement.cs
- RuntimeVariableList.cs
- DispatchOperation.cs
- GPRECTF.cs
- EventLogPermission.cs
- DiagnosticTraceSource.cs
- DetailsViewCommandEventArgs.cs
- UpdateRecord.cs
- WebPartDisplayModeCancelEventArgs.cs
- NoneExcludedImageIndexConverter.cs
- FrameAutomationPeer.cs
- DrawingCollection.cs
- RoleGroup.cs
- UDPClient.cs
- AuthenticationModuleElement.cs
- Byte.cs
- SoundPlayer.cs
- XmlSchemaException.cs
- ReadOnlyDictionary.cs
- ErrorWrapper.cs
- streamingZipPartStream.cs
- OleDbDataReader.cs
- Quad.cs
- OleDbParameter.cs
- SoapFaultCodes.cs
- CodeAttributeArgumentCollection.cs
- SqlXmlStorage.cs
- LinqDataSourceContextEventArgs.cs
- NGCPageContentSerializerAsync.cs
- ConnectionConsumerAttribute.cs
- ToggleProviderWrapper.cs
- Int16KeyFrameCollection.cs
- BrowserDefinitionCollection.cs
- HttpGetServerProtocol.cs
- ResourceType.cs
- UrlPropertyAttribute.cs
- BitmapEffectDrawing.cs
- ConfigurationLocation.cs
- ADRoleFactory.cs
- CodeComment.cs
- ClientType.cs
- BuildTopDownAttribute.cs
- FrameDimension.cs
- DbConnectionPoolGroupProviderInfo.cs
- ToolboxItemAttribute.cs
- AuthenticatingEventArgs.cs
- HandlerBase.cs
- ServiceBuildProvider.cs
- QilExpression.cs
- HtmlInputPassword.cs
- InvalidMessageContractException.cs
- PassportPrincipal.cs
- ContentType.cs
- TabControl.cs
- ItemList.cs
- CustomError.cs
- StorageEntityTypeMapping.cs
- HttpApplication.cs
- CodeCatchClauseCollection.cs
- LineUtil.cs
- NCryptNative.cs
- ClientApiGenerator.cs
- TagPrefixInfo.cs
- GraphicsState.cs
- ColumnWidthChangingEvent.cs
- PaperSource.cs
- DataGridViewToolTip.cs
- InstancePersistenceException.cs
- IItemContainerGenerator.cs
- Command.cs
- OleDbPropertySetGuid.cs
- MenuRendererStandards.cs
- EngineSiteSapi.cs
- ReadOnlyCollection.cs
- DoubleAnimationBase.cs
- LayoutEditorPart.cs