add max buffer sizes and if should process bad field flag

src/CsvHelper/Configuration/CsvConfiguration.cs

@@ -28,6 +28,9 @@ public record CsvConfiguration : IReaderConfiguration, IWriterConfiguration
 		/// <inheritdoc/>
 		public virtual BadDataFound BadDataFound { get; set; } = ConfigurationFunctions.BadDataFound;
 
+		/// <inheritdoc/>
+		public virtual bool ProcessBadDataFields { get; set; } = true;
+
 		/// <inheritdoc/>
 		public virtual int BufferSize { get; set; } = 0x1000;
 
@@ -37,6 +40,9 @@ public record CsvConfiguration : IReaderConfiguration, IWriterConfiguration
 		/// <inheritdoc/>
 		public virtual char Comment { get; set; } = '#';
 
+		/// <inheritdoc/>
+		public virtual int? MaxProcessFieldBufferSize { get; set; }
+
 		/// <inheritdoc/>
 		public virtual bool CountBytes { get; set; }
 
@@ -135,6 +141,9 @@ public virtual string NewLine
 		/// <inheritdoc/>
 		public virtual int ProcessFieldBufferSize { get; set; } = 1024;
 
+		/// <inheritdoc/>
+		public virtual int? MaxBufferSize { get; set; }
+
 		/// <inheritdoc/>
 		public virtual char Quote { get; set; } = '"';
 

src/CsvHelper/Configuration/IParserConfiguration.cs

@@ -61,6 +61,20 @@ public interface IParserConfiguration
 		/// </summary>
 		int ProcessFieldBufferSize { get; }
 
+		/// <summary>
+		/// Gets the maximum allowed size of the buffer which must not be increased above that value.
+		/// No limit if not defined.
+		/// </summary>
+		int? MaxBufferSize { get; }
+
+		/// <summary>
+		/// Gets the maximum allowed size of the process field buffer which must not be increased above that value.
+		/// If field is longer value is truncated what leads to data loss.
+		/// No limit if not defined.
+		/// WARNING: setting too low value can lead to field truncation if length bigger than this value
+		/// </summary>
+		int? MaxProcessFieldBufferSize { get; }
+
 		/// <summary>
 		/// Gets a value indicating whether the number of bytes should
 		/// be counted while parsing. Default is false. This will slow down parsing
@@ -82,6 +96,11 @@ public interface IParserConfiguration
 		/// </summary>
 		BadDataFound BadDataFound { get; }
 
+		/// <summary>
+		/// If set bad data fields are not processed and empty array allocated for them
+		/// </summary>
+		bool ProcessBadDataFields { get; }
+
 		/// <summary>
 		/// Gets or sets the maximum size of a field.
 		/// Defaults to 0, indicating maximum field size is not checked.