lib: Add bossac 1.9 code to lib directory

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

lib/bossac/src/FileError.h

@@ -0,0 +1,94 @@
+///////////////////////////////////////////////////////////////////////////////
+// BOSSA
+//
+// Copyright (c) 2011-2018, ShumaTech
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of the <organization> nor the
+//       names of its contributors may be used to endorse or promote products
+//       derived from this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 <COPYRIGHT HOLDER> 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.
+///////////////////////////////////////////////////////////////////////////////
+#ifndef _FILEERROR_H
+#define _FILEERROR_H
+
+#include <exception>
+#include <errno.h>
+#include <string.h>
+
+#include "Flash.h"
+#include "Samba.h"
+
+class FileError : public std::exception
+{
+public:
+    FileError() : std::exception() {}
+};
+
+class FileOpenError : public FileError
+{
+public:
+    FileOpenError() : FileError(), _errnum(0) {};
+    FileOpenError(int errnum) : FileError(), _errnum(errnum) {};
+    const char* what() const throw()
+    {
+        if (_errnum == 0)
+            return "Unable to open file";
+        else
+            return strerror(_errnum);
+    }
+private:
+    int _errnum;
+};
+
+class FileIoError : public FileError
+{
+public:
+    FileIoError() : FileError(), _errnum(0) {};
+    FileIoError(int errnum) : FileError(), _errnum(errnum) {};
+    const char* what() const throw()
+    {
+        if (_errnum == 0)
+            return "File I/O operation failed";
+        else
+            return strerror(_errnum);
+    }
+private:
+    int _errnum;
+};
+
+class FileShortError : public FileError
+{
+public:
+    FileShortError() : FileError() {};
+    const char* what() const throw()
+    {
+        return "Operation ended with a short write";
+    }
+};
+
+class FileSizeError : public FileError
+{
+public:
+    FileSizeError() {};
+    const char* what() const throw() { return "File operation exceeds flash size"; }
+};
+
+#endif // _FILEERROR_H