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91 lines
3.3 KiB
91 lines
3.3 KiB
//
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// Strings.cs
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//
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// Author: Kees van Spelde <sicos2002@hotmail.com>
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//
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// Copyright (c) 2013-2018 Magic-Sessions. (www.magic-sessions.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// 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, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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using System.IO;
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using System.Text;
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namespace MsgReader.Helpers
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{
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internal static class Strings
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{
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#region ReadNullTerminatedString
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/// <summary>
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/// Reads from the <paramref name="binaryReader"/> until a null terminated char is read
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/// </summary>
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/// <param name="binaryReader"></param>
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/// <param name="unicode"></param>
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/// <returns></returns>
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public static string ReadNullTerminatedString(BinaryReader binaryReader, bool unicode)
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{
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return unicode ? ReadNullTerminatedUnicodeString(binaryReader) : ReadNullTerminatedAsciiString(binaryReader);
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}
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#endregion
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#region ReadNullTerminatedString
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/// <summary>
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/// Reads from the <paramref name="binaryReader"/> until a null terminated char is read
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/// </summary>
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/// <param name="binaryReader">The <see cref="BinaryReader" /></param>
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/// <returns></returns>
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public static string ReadNullTerminatedAsciiString(BinaryReader binaryReader)
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{
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var result = new MemoryStream();
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var b = binaryReader.ReadByte();
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while (b != 0)
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{
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result.WriteByte(b);
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b = binaryReader.ReadByte();
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}
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return Encoding.ASCII.GetString(result.ToArray());
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}
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#endregion
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#region ReadNullTerminatedUnicodeString
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/// <summary>
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/// Reads from the <paramref name="binaryReader"/> until a null terminated char is read
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/// </summary>
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/// <param name="binaryReader">The <see cref="BinaryReader" /></param>
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/// <returns></returns>
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public static string ReadNullTerminatedUnicodeString(BinaryReader binaryReader)
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{
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var result = new MemoryStream();
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var b = binaryReader.ReadBytes(2);
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while (b[0] != 0 && b[1] != 0)
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{
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result.WriteByte(b[0]);
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result.WriteByte(b[2]);
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b = binaryReader.ReadBytes(2);
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}
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return Encoding.Unicode.GetString(result.ToArray());
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}
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#endregion
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}
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}
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