@@ -32,10 +32,11 @@
 #endif
 
 #import "OFInvalidFormatException.h"
 #import "OFOpenItemFailedException.h"
 #import "OFOutOfMemoryException.h"
+#import "OFOutOfRangeException.h"
 
 #ifdef OF_WINDOWS
 # define interface struct
 # include <iphlpapi.h>
 # undef interface
@@ -236,30 +237,41 @@
 # if !defined(OF_WINDOWS) && !defined(OF_AMIGAOS4)
 - (void)parseResolvConfOption: (OFString *)option
 {
 	@try {
 		if ([option hasPrefix: @"ndots:"]) {
+			unsigned long long number;
+
 			option = [option substringWithRange:
 			    of_range(6, option.length - 6)];
+			number = option.unsignedLongLongValue;
+
+			if (number > UINT_MAX)
+				@throw [OFOutOfRangeException exception];
 
-			_minNumberOfDotsInAbsoluteName =
-			    (unsigned int)option.decimalValue;
+			_minNumberOfDotsInAbsoluteName = (unsigned int)number;
 		} else if ([option hasPrefix: @"timeout:"]) {
 			option = [option substringWithRange:
 			    of_range(8, option.length - 8)];
 
-			_timeout = option.decimalValue;
+			_timeout = option.unsignedLongLongValue;
 		} else if ([option hasPrefix: @"attempts:"]) {
+			unsigned long long number;
+
 			option = [option substringWithRange:
 			    of_range(9, option.length - 9)];
+			number = option.unsignedLongLongValue;
+
+			if (number > UINT_MAX)
+				@throw [OFOutOfRangeException exception];
 
-			_maxAttempts = (unsigned int)option.decimalValue;
+			_maxAttempts = (unsigned int)number;
 		} else if ([option hasPrefix: @"reload-period:"]) {
 			option = [option substringWithRange:
 			    of_range(14, option.length - 14)];
 
-			_configReloadInterval = option.decimalValue;
+			_configReloadInterval = option.unsignedLongLongValue;
 		} else if ([option isEqual: @"tcp"])
 			_usesTCP = true;
 	} @catch (OFInvalidFormatException *e) {
 	}
 }