1 files changed, 21 insertions, 0 deletions
diff --git a/pumpkin/IPTransformer.m b/pumpkin/IPTransformer.m
new file mode 100644
index 0000000..2307b05
--- a/dev/null
+++ b/pumpkin/IPTransformer.m
@@ -0,0 +1,21 @@
+
+#import "IPTransformer.h"
+
+#include <arpa/inet.h>
+
+@implementation IPTransformer
+
++(Class)transformedValueClass { return [NSString class]; }
++(BOOL)allowsReverseTransformation { return YES; }
+-(id)transformedValue:(id)value {
+    if(value &&
+       [value respondsToSelector:@selector(UTF8String)]
+       && inet_addr([value UTF8String])!=INADDR_NONE )
+	return value;
+    return nil;
+}
+-(id)reverseTransformedValue:(id)value {
+    return [self transformedValue:value];
+}
+
+@end
+\ No newline at end of file