mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-04 23:45:14 +00:00
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
|
|
||
|
|
#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
|