1 files changed, 49 insertions, 0 deletions
diff --git a/Firebase/Utilities/NSData+zlib/GULNSData+zlib.h b/Firebase/Utilities/NSData+zlib/GULNSData+zlib.h
new file mode 100644
index 0000000..36f94a7
--- /dev/null
+++ b/Firebase/Utilities/NSData+zlib/GULNSData+zlib.h
@@ -0,0 +1,49 @@
+// Copyright 2018 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <Foundation/Foundation.h>
+
+/// This is a copy of Google Toolbox for Mac library to avoid creating an extra framework.
+
+// NOTE: For 64bit, none of these apis handle input sizes >32bits, they will return nil when given
+// such data. To handle data of that size you really should be streaming it rather then doing it all
+// in memory.
+
+@interface NSData (GULGzip)
+
+/// Returns an data as the result of decompressing the payload of |data|.The data to decompress must
+/// be a gzipped payloads.
++ (NSData *)gul_dataByInflatingGzippedData:(NSData *)data error:(NSError **)error;
+
+/// Returns an compressed data with the result of gzipping the payload of |data|. Uses the default
+/// compression level.
++ (NSData *)gul_dataByGzippingData:(NSData *)data error:(NSError **)error;
+
+FOUNDATION_EXPORT NSString *const GULNSDataZlibErrorDomain;
+FOUNDATION_EXPORT NSString *const GULNSDataZlibErrorKey;           // NSNumber
+FOUNDATION_EXPORT NSString *const GULNSDataZlibRemainingBytesKey;  // NSNumber
+
+typedef NS_ENUM(NSInteger, GULNSDataZlibError) {
+  GULNSDataZlibErrorGreaterThan32BitsToCompress = 1024,
+  // An internal zlib error.
+  // GULNSDataZlibErrorKey will contain the error value.
+  // NSLocalizedDescriptionKey may contain an error string from zlib.
+  // Look in zlib.h for list of errors.
+  GULNSDataZlibErrorInternal,
+  // There was left over data in the buffer that was not used.
+  // GULNSDataZlibRemainingBytesKey will contain number of remaining bytes.
+  GULNSDataZlibErrorDataRemaining
+};
+
+@end