-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;
- };