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#ifndef _GNUTLS_H
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#define _GNUTLS_H
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#include <gnutls/gnutls.h>
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#include <gnutls/crypto.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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struct session
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{
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gnutls_session_t session;
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gnutls_certificate_credentials_t xcred;
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int handshake;
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void *data;
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};
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extern int DataRead(void *, char *, int);
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extern int DataWrite(void *, char *, int);
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extern int DataTimeoutPull(void *, int);
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struct session *init_client_session();
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struct session *init_server_session();
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int pull_timeout_function(gnutls_transport_ptr_t ptr, unsigned int ms);
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ssize_t pull_function(gnutls_transport_ptr_t ptr, void *data, size_t len);
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ssize_t push_function(gnutls_transport_ptr_t ptr, const void *data, size_t len);
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void set_data(struct session *sess, size_t data);
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int handshake(struct session *sess);
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int set_callback(struct session *sess);
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void session_destroy(struct session *);
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gnutls_cipher_hd_t new_cipher(int cipher_type, char *key, int keylen, char *iv, int ivlen);
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gnutls_hash_hd_t new_hash(int t);
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int alpn_set_protocols(struct session *sess, char **, int);
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int alpn_get_selected_protocol(struct session *sess, char *buf);
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#endif
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