diff options
Diffstat (limited to 'Foundation/GTMNSData+zlib.m')
| -rw-r--r-- | Foundation/GTMNSData+zlib.m | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/Foundation/GTMNSData+zlib.m b/Foundation/GTMNSData+zlib.m index 514477f..8ba1ddc 100644 --- a/Foundation/GTMNSData+zlib.m +++ b/Foundation/GTMNSData+zlib.m @@ -24,19 +24,25 @@ @interface NSData (GTMZlibAdditionsPrivate) + (NSData *)gtm_dataByCompressingBytes:(const void *)bytes - length:(unsigned)length + length:(NSUInteger)length compressionLevel:(int)level useGzip:(BOOL)useGzip; @end @implementation NSData (GTMZlibAdditionsPrivate) + (NSData *)gtm_dataByCompressingBytes:(const void *)bytes - length:(unsigned)length + length:(NSUInteger)length compressionLevel:(int)level useGzip:(BOOL)useGzip { if (!bytes || !length) { return nil; } + + // TODO: support 64bit inputs + // avail_in is a uInt, so if length > UINT_MAX we actually need to loop + // feeding the data until we've gotten it all in. not supporting this + // at the moment. + _GTMDevAssert(length <= UINT_MAX, @"Currently don't support >32bit lengths"); if (level == Z_DEFAULT_COMPRESSION) { // the default value is actually outside the range, so we have to let it @@ -70,7 +76,7 @@ unsigned char output[kChunkSize]; // setup the input - strm.avail_in = length; + strm.avail_in = (unsigned int)length; strm.next_in = (unsigned char*)bytes; // loop to collect the data @@ -119,7 +125,7 @@ @implementation NSData (GTMZLibAdditions) + (NSData *)gtm_dataByGzippingBytes:(const void *)bytes - length:(unsigned)length { + length:(NSUInteger)length { return [self gtm_dataByCompressingBytes:bytes length:length compressionLevel:Z_DEFAULT_COMPRESSION @@ -134,7 +140,7 @@ } // gtm_dataByGzippingData: + (NSData *)gtm_dataByGzippingBytes:(const void *)bytes - length:(unsigned)length + length:(NSUInteger)length compressionLevel:(int)level { return [self gtm_dataByCompressingBytes:bytes length:length @@ -151,7 +157,7 @@ } // gtm_dataByGzippingData:level: + (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes - length:(unsigned)length { + length:(NSUInteger)length { return [self gtm_dataByCompressingBytes:bytes length:length compressionLevel:Z_DEFAULT_COMPRESSION @@ -166,7 +172,7 @@ } // gtm_dataByDeflatingData: + (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes - length:(unsigned)length + length:(NSUInteger)length compressionLevel:(int)level { return [self gtm_dataByCompressingBytes:bytes length:length @@ -183,16 +189,22 @@ } // gtm_dataByDeflatingData:level: + (NSData *)gtm_dataByInflatingBytes:(const void *)bytes - length:(unsigned)length { + length:(NSUInteger)length { if (!bytes || !length) { return nil; } + + // TODO: support 64bit inputs + // avail_in is a uInt, so if length > UINT_MAX we actually need to loop + // feeding the data until we've gotten it all in. not supporting this + // at the moment. + _GTMDevAssert(length <= UINT_MAX, @"Currently don't support >32bit lengths"); z_stream strm; bzero(&strm, sizeof(z_stream)); // setup the input - strm.avail_in = length; + strm.avail_in = (unsigned int)length; strm.next_in = (unsigned char*)bytes; int windowBits = 15; // 15 to enable any window size |