Index: src/OFTarArchiveEntry.m
==================================================================
--- src/OFTarArchiveEntry.m
+++ src/OFTarArchiveEntry.m
@@ -36,11 +36,11 @@
 	return [OFString stringWithUTF8String: buffer
 				       length: length];
 }
 
 static uintmax_t
-octalValueFromBuffer(const char *buffer, size_t length, size_t max)
+octalValueFromBuffer(const char *buffer, size_t length, uintmax_t max)
 {
 	uintmax_t value = [stringFromBuffer(buffer, length) octalValue];
 
 	if (value > max)
 		@throw [OFOutOfRangeException exception];
@@ -145,14 +145,14 @@
 		_toRead -= 512;
 	}
 
 	if (_toRead > 0) {
 		[_stream readIntoBuffer: buffer
-			    exactLength: _toRead];
+			    exactLength: (size_t)_toRead];
 		_toRead = 0;
 	}
 
 	if (_size % 512 != 0)
 		[_stream readIntoBuffer: buffer
 			    exactLength: 512 - (_size % 512)];
 }
 @end