2 files changed, 8 insertions, 6 deletions

diff --git a/src/OSSupport/File.cpp b/src/OSSupport/File.cpp
index ff6fb5898..2194c46ee 100644
--- a/src/OSSupport/File.cpp
+++ b/src/OSSupport/File.cpp
@@ -70,6 +70,7 @@ bool cFile::Open(const AString & iFileName, eMode iMode)
 		case fmRead:      Mode = "rb";  break;
 		case fmWrite:     Mode = "wb";  break;
 		case fmReadWrite: Mode = "rb+"; break;
+		case fmAppend:    Mode = "a+";  break;
 	}
 	if (Mode == NULL)
 	{
@@ -255,10 +256,10 @@ int cFile::ReadRestOfFile(AString & a_Contents)
 		return -1;
 	}
 	
-	int DataSize = GetSize() - Tell();
+	size_t DataSize = GetSize() - Tell();
 	
 	// HACK: This depends on the internal knowledge that AString's data() function returns the internal buffer directly
-	a_Contents.assign((size_t)DataSize, '\0');
+	a_Contents.assign(DataSize, '\0');
 	return Read((void *)a_Contents.data(), DataSize);
 }
 
@@ -459,7 +460,7 @@ int cFile::Printf(const char * a_Fmt, ...)
 	va_start(args, a_Fmt);
 	AppendVPrintf(buf, a_Fmt, args);
 	va_end(args);
-	return Write(buf.c_str(), (int)buf.length());
+	return Write(buf.c_str(), buf.length());
 }
 
 
diff --git a/src/OSSupport/File.h b/src/OSSupport/File.h
index 2a7ecf0ed..dfb38e839 100644
--- a/src/OSSupport/File.h
+++ b/src/OSSupport/File.h
@@ -60,9 +60,10 @@ public:
 	/** The mode in which to open the file */
 	enum eMode
 	{
-		fmRead,      // Read-only. If the file doesn't exist, object will not be valid
-		fmWrite,     // Write-only. If the file already exists, it will be overwritten
-		fmReadWrite  // Read/write. If the file already exists, it will be left intact; writing will overwrite the data from the beginning
+		fmRead,       // Read-only. If the file doesn't exist, object will not be valid
+		fmWrite,      // Write-only. If the file already exists, it will be overwritten
+		fmReadWrite,  // Read/write. If the file already exists, it will be left intact; writing will overwrite the data from the beginning
+		fmAppend      // Write-only. If the file already exists cursor will be moved to the end of the file
 	} ;
 	
 	/** Simple constructor - creates an unopened file object, use Open() to open / create a real file */