Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | |
| 2 | #ifndef HEADER_COMP_H |
| 3 | #define HEADER_COMP_H |
| 4 | |
| 5 | #include <openssl/crypto.h> |
| 6 | |
| 7 | #ifdef __cplusplus |
| 8 | extern "C" { |
| 9 | #endif |
| 10 | |
| 11 | typedef struct comp_ctx_st COMP_CTX; |
| 12 | |
| 13 | typedef struct comp_method_st |
| 14 | { |
| 15 | int type; /* NID for compression library */ |
| 16 | const char *name; /* A text string to identify the library */ |
| 17 | int (*init)(COMP_CTX *ctx); |
| 18 | void (*finish)(COMP_CTX *ctx); |
| 19 | int (*compress)(COMP_CTX *ctx, |
| 20 | unsigned char *out, unsigned int olen, |
| 21 | unsigned char *in, unsigned int ilen); |
| 22 | int (*expand)(COMP_CTX *ctx, |
| 23 | unsigned char *out, unsigned int olen, |
| 24 | unsigned char *in, unsigned int ilen); |
| 25 | /* The following two do NOTHING, but are kept for backward compatibility */ |
| 26 | long (*ctrl)(void); |
| 27 | long (*callback_ctrl)(void); |
| 28 | } COMP_METHOD; |
| 29 | |
| 30 | struct comp_ctx_st |
| 31 | { |
| 32 | COMP_METHOD *meth; |
| 33 | unsigned long compress_in; |
| 34 | unsigned long compress_out; |
| 35 | unsigned long expand_in; |
| 36 | unsigned long expand_out; |
| 37 | |
| 38 | CRYPTO_EX_DATA ex_data; |
| 39 | }; |
| 40 | |
| 41 | |
| 42 | COMP_CTX *COMP_CTX_new(COMP_METHOD *meth); |
| 43 | void COMP_CTX_free(COMP_CTX *ctx); |
| 44 | int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen, |
| 45 | unsigned char *in, int ilen); |
| 46 | int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen, |
| 47 | unsigned char *in, int ilen); |
| 48 | COMP_METHOD *COMP_rle(void ); |
| 49 | COMP_METHOD *COMP_zlib(void ); |
| 50 | void COMP_zlib_cleanup(void); |
| 51 | |
| 52 | #ifdef HEADER_BIO_H |
| 53 | #ifdef ZLIB |
| 54 | BIO_METHOD *BIO_f_zlib(void); |
| 55 | #endif |
| 56 | #endif |
| 57 | |
| 58 | /* BEGIN ERROR CODES */ |
| 59 | /* The following lines are auto generated by the script mkerr.pl. Any changes |
| 60 | * made after this point may be overwritten when the script is next run. |
| 61 | */ |
| 62 | void ERR_load_COMP_strings(void); |
| 63 | |
| 64 | /* Error codes for the COMP functions. */ |
| 65 | |
| 66 | /* Function codes. */ |
| 67 | #define COMP_F_BIO_ZLIB_FLUSH 99 |
| 68 | #define COMP_F_BIO_ZLIB_NEW 100 |
| 69 | #define COMP_F_BIO_ZLIB_READ 101 |
| 70 | #define COMP_F_BIO_ZLIB_WRITE 102 |
| 71 | |
| 72 | /* Reason codes. */ |
| 73 | #define COMP_R_ZLIB_DEFLATE_ERROR 99 |
| 74 | #define COMP_R_ZLIB_INFLATE_ERROR 100 |
| 75 | #define COMP_R_ZLIB_NOT_SUPPORTED 101 |
| 76 | |
| 77 | #ifdef __cplusplus |
| 78 | } |
| 79 | #endif |
| 80 | #endif |