1 files changed, 196 insertions, 0 deletions
diff --git a/lib/lwip/lwip/contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/MibCFile.cs b/lib/lwip/lwip/contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/MibCFile.cs
new file mode 100644
index 0000000..c48ec29
--- /dev/null
+++ b/lib/lwip/lwip/contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/MibCFile.cs
@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+using System.Collections.Generic;
+using CCodeGeneration;
+using System;
+using System.IO;
+
+namespace LwipSnmpCodeGeneration
+{
+	public class MibCFile
+	{
+		#region Fields
+
+		private const string PreservedSectionMarker = "LWIP MIB generator - preserved section begin";
+		private const string PreservedSectionHeader = 
+			"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n" +
+			PreservedSectionMarker + "\n" +
+			"Code below is preserved on regeneration. Remove these comment lines to regenerate code.\n" +
+			"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
+
+		private readonly List<CodeElement> includes = new List<CodeElement>();
+		private readonly List<CodeElement> defines = new List<CodeElement>();
+		private readonly List<CodeElement> declarations = new List<CodeElement>();
+		private readonly List<CodeElement> implementation = new List<CodeElement>();
+		private readonly List<CodeElement> preservedCode = new List<CodeElement>();
+
+		#endregion
+
+		public MibCFile()
+		{
+		}
+
+		#region Accessors
+
+		public List<CodeElement> Includes
+		{
+			get { return this.includes; }
+		}
+
+		public List<CodeElement> Defines
+		{
+			get { return this.defines; }
+		}
+
+		public List<CodeElement> Declarations
+		{
+			get { return this.declarations; }
+		}
+
+		public List<CodeElement> Implementation
+		{
+			get { return this.implementation; }
+		}
+
+		public List<CodeElement> PreservedCode
+		{
+			get { return this.preservedCode; }
+		}
+
+		#endregion
+
+		#region Methods
+
+		public void Save(CGenerator cGenerator)
+		{
+			CFile cFile = new CFile();
+
+			cFile.AddElement(new Comment("Generated by LwipMibCompiler"));
+			cFile.AddElement(EmptyLine.SingleLine);
+
+			cFile.AddElement(new PP_Include(LwipDefs.Incl_SnmpOpts));
+			CodeContainerBase e = cFile.AddElement(new PP_If(LwipDefs.Opt_SnmpEnabled)) as CodeContainerBase;
+			e.AddElement(EmptyLine.SingleLine);
+
+			// include header file
+			string file = cGenerator.FileName;
+			if (!String.IsNullOrWhiteSpace(file))
+			{
+				string ext = System.IO.Path.GetExtension(file);
+
+				string headerFile = !String.IsNullOrEmpty(ext) ? file.Substring(0, file.Length - ext.Length) : file;
+				headerFile += ".h";
+
+				e.AddElement(new PP_Include(headerFile));								
+			}
+
+			// include common snmp files
+			e.AddElement(new PP_Include("lwip/apps/snmp.h"));
+			e.AddElement(new PP_Include("lwip/apps/snmp_core.h"));
+			e.AddElement(new PP_Include("lwip/apps/snmp_scalar.h"));
+			e.AddElement(new PP_Include("lwip/apps/snmp_table.h"));
+
+			if (this.includes.Count > 0)
+			{
+				e.AddElement(EmptyLine.SingleLine);
+				e.AddElements(this.includes);
+			}
+
+			if (this.defines.Count > 0)
+			{
+				e.AddElement(EmptyLine.SingleLine);
+				e.AddElements(this.defines);
+			}
+
+			if (this.declarations.Count > 0)
+			{
+				e.AddElement(EmptyLine.TwoLines);
+				e.AddElements(this.declarations);
+			}
+
+			if (this.implementation.Count > 0)
+			{
+				e.AddElement(EmptyLine.TwoLines);
+				e.AddElements(this.implementation);
+			}
+
+			if (this.preservedCode.Count > 0)
+			{
+				e.AddElement(EmptyLine.TwoLines);
+				e.AddElement(new Comment(PreservedSectionHeader));
+				e.AddElement(EmptyLine.SingleLine);
+				e.AddElements(this.preservedCode);
+			}
+
+			cFile.Save(cGenerator);
+		}
+
+		public static string GetPreservedCode(string file)
+		{
+			if (File.Exists(file))
+			{
+				using (StreamReader fileStream = new StreamReader(file))
+				{
+					while (!fileStream.EndOfStream)
+					{
+						string line = fileStream.ReadLine();
+						if (line == PreservedSectionMarker)
+						{
+							break;
+						}
+					}
+
+					if (!fileStream.EndOfStream)
+					{
+						// skip the rest of the comment + spacer line
+						fileStream.ReadLine(); // "Code below is preserved...
+						fileStream.ReadLine(); // "+++++++++++++++++++++++...
+						fileStream.ReadLine(); // */
+						fileStream.ReadLine(); //
+
+						string preservedCode = fileStream.ReadToEnd();
+
+						int lastEndif    = preservedCode.LastIndexOf("#endif", StringComparison.Ordinal);
+						preservedCode    = preservedCode.Remove(lastEndif);
+
+						return preservedCode;
+					}
+				}
+			}
+
+			return null;
+		}
+
+		#endregion
+	}
+}