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#import "CSStreamHandle.h"
#import "Checksums.h"
#import "Progress.h"
#include <openssl/evp.h>
@interface XADDigestHandle:CSStreamHandle
{
CSHandle *parent;
NSData *digest;
const EVP_MD *type;
EVP_MD_CTX ctx;
BOOL inited;
}
+(XADDigestHandle *)MD5HandleWithHandle:(CSHandle *)handle length:(off_t)length
correctDigest:(NSData *)correctdigest;
+(XADDigestHandle *)SHA1HandleWithHandle:(CSHandle *)handle length:(off_t)length
correctDigest:(NSData *)correctdigest;
//+(XADDigestHandle *)SHA256HandleWithHandle:(CSHandle *)handle length:(off_t)length
//correctDigest:(NSData *)correctdigest;
+(XADDigestHandle *)digestHandleWithHandle:(CSHandle *)handle length:(off_t)length
digestName:(NSString *)digestname correctDigest:(NSData *)correctdigest;
-(id)initWithHandle:(CSHandle *)handle length:(off_t)length
digestType:(const EVP_MD *)digesttype correctDigest:(NSData *)correctdigest;
-(void)dealloc;
-(void)resetStream;
-(int)streamAtMost:(int)num toBuffer:(void *)buffer;
-(BOOL)hasChecksum;
-(BOOL)isChecksumCorrect;
@end
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