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/* $OpenBSD: comp_local.h,v 1.2 2022/01/14 08:21:12 tb Exp $ */
#ifndef HEADER_COMP_LOCAL_H
#define HEADER_COMP_LOCAL_H
__BEGIN_HIDDEN_DECLS
struct CMP_CTX;
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 */;
__END_HIDDEN_DECLS
#endif /* !HEADER_COMP_LOCAL_H */
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