5 # include <openssl/crypto.h>
11 typedef struct comp_ctx_st COMP_CTX;
13 typedef struct comp_method_st {
16 int (*init) (COMP_CTX *ctx);
17 void (*finish) (COMP_CTX *ctx);
18 int (*compress) (COMP_CTX *ctx,
19 unsigned char *out,
unsigned int olen,
20 unsigned char *in,
unsigned int ilen);
21 int (*expand) (COMP_CTX *ctx,
22 unsigned char *out,
unsigned int olen,
23 unsigned char *in,
unsigned int ilen);
28 long (*callback_ctrl) (void);
33 unsigned long compress_in;
34 unsigned long compress_out;
35 unsigned long expand_in;
36 unsigned long expand_out;
37 CRYPTO_EX_DATA ex_data;
40 COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
41 void COMP_CTX_free(COMP_CTX *ctx);
42 int COMP_compress_block(COMP_CTX *ctx,
unsigned char *out,
int olen,
43 unsigned char *in,
int ilen);
44 int COMP_expand_block(COMP_CTX *ctx,
unsigned char *out,
int olen,
45 unsigned char *in,
int ilen);
46 COMP_METHOD *COMP_rle(
void);
47 COMP_METHOD *COMP_zlib(
void);
48 void COMP_zlib_cleanup(
void);
52 BIO_METHOD *BIO_f_zlib(
void);
61 void ERR_load_COMP_strings(
void);
66 # define COMP_F_BIO_ZLIB_FLUSH 99
67 # define COMP_F_BIO_ZLIB_NEW 100
68 # define COMP_F_BIO_ZLIB_READ 101
69 # define COMP_F_BIO_ZLIB_WRITE 102
72 # define COMP_R_ZLIB_DEFLATE_ERROR 99
73 # define COMP_R_ZLIB_INFLATE_ERROR 100
74 # define COMP_R_ZLIB_NOT_SUPPORTED 101