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#ifndef HEADER_COMP_H
#define HEADER_COMP_H
#include <openssl/crypto.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct comp_method_st
{
int type; /* NID for compression library */
const char *name; /* A text string to identify the library */
int (*init)();
void (*finish)();
int (*compress)();
int (*expand)();
long (*ctrl)();
long (*callback_ctrl)();
} COMP_METHOD;
typedef struct comp_ctx_st
{
COMP_METHOD *meth;
unsigned long compress_in;
unsigned long compress_out;
unsigned long expand_in;
unsigned long expand_out;
CRYPTO_EX_DATA ex_data;
} COMP_CTX;
COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
void COMP_CTX_free(COMP_CTX *ctx);
int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
unsigned char *in, int ilen);
int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
unsigned char *in, int ilen);
COMP_METHOD *COMP_rle(void );
#ifdef ZLIB
COMP_METHOD *COMP_zlib(void );
#endif
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
/* Error codes for the COMP functions. */
/* Function codes. */
/* Reason codes. */
#ifdef __cplusplus
}
#endif
#endif
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