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typedef struct comp_method_st
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int type; /* NID for compression library */
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const char *name; /* A text string to identify the library */
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long (*callback_ctrl)();
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typedef struct comp_ctx_st
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unsigned long compress_in;
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unsigned long compress_out;
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unsigned long expand_in;
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unsigned long expand_out;
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CRYPTO_EX_DATA ex_data;
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COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
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void COMP_CTX_free(COMP_CTX *ctx);
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int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
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unsigned char *in, int ilen);
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int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
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unsigned char *in, int ilen);
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COMP_METHOD *COMP_rle(void );
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COMP_METHOD *COMP_zlib(void );
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/* BEGIN ERROR CODES */
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/* The following lines are auto generated by the script mkerr.pl. Any changes
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* made after this point may be overwritten when the script is next run.
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/* Error codes for the COMP functions. */