LCOM1920-T02G10

#ifndef HEADER_COMP_H

# define HEADER_COMP_H

# include <openssl/crypto.h>

#ifdef  __cplusplus

extern "C" {

#endif

typedef struct comp_ctx_st COMP_CTX;

typedef struct comp_method_st {

    int type;                   /* NID for compression library */

    const char *name;           /* A text string to identify the library */

    int (*init) (COMP_CTX *ctx);

    void (*finish) (COMP_CTX *ctx);

    int (*compress) (COMP_CTX *ctx,

                     unsigned char *out, unsigned int olen,

                     unsigned char *in, unsigned int ilen);

    int (*expand) (COMP_CTX *ctx,

                   unsigned char *out, unsigned int olen,

                   unsigned char *in, unsigned int ilen);

    /*

     * The following two do NOTHING, but are kept for backward compatibility

     */

    long (*ctrl) (void);

    long (*callback_ctrl) (void);

} COMP_METHOD;

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_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);

COMP_METHOD *COMP_zlib(void);

void COMP_zlib_cleanup(void);

# ifdef HEADER_BIO_H

#  ifdef ZLIB

BIO_METHOD *BIO_f_zlib(void);

#  endif

# 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.

 */

void ERR_load_COMP_strings(void);

/* Error codes for the COMP functions. */

/* Function codes. */

# define COMP_F_BIO_ZLIB_FLUSH                            99

# define COMP_F_BIO_ZLIB_NEW                              100

# define COMP_F_BIO_ZLIB_READ                             101

# define COMP_F_BIO_ZLIB_WRITE                            102

/* Reason codes. */

# define COMP_R_ZLIB_DEFLATE_ERROR                        99

# define COMP_R_ZLIB_INFLATE_ERROR                        100

# define COMP_R_ZLIB_NOT_SUPPORTED                        101

#ifdef  __cplusplus

}

#endif

#endif