+
+#ifndef SSL_H_987698
+#define SSL_H_987698
+
+#include "config.h"
+#include "types.h"
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+
+#if defined(USE_POLARSSL)
+#include <polarssl/ssl.h>
+#include <polarssl/version.h>
+
+#if defined(POLARSSL_VERSION_MAJOR)
+#if (POLARSSL_VERSION_MAJOR < 1)
+#error PolarSSL version 1.0.0 or greater is required!
+#endif
+#else
+#error PolarSSL version 1.0.0 or greater is required!
+#endif
+
+#if defined(USE_POLARSSL_HAVEGE)
+#include <polarssl/havege.h>
+ #if (POLARSSL_VERSION_MINOR >= 1)
+ #define HAVEGE_RAND (havege_random)
+ #define RAND_bytes(_dst_, _size_) do { \
+ havege_random(&hs, _dst_, _size_); \
+ } while (0)
+ #else
+ #define HAVEGE_RAND (havege_rand)
+ #define RAND_bytes(_dst_, _size_) do { \
+ int i; \
+ for (i = 0; i < _size_; i++) { \
+ _dst_[i] = havege_rand(&hs); \
+ } \
+ } while (0)
+ #endif
+#else
+#define RAND_bytes(_dst_, _size_) do { urandom_bytes(NULL, _dst_, _size_); } while (0)
+int urandom_bytes(void *ctx, unsigned char *dest, size_t len);
+#endif
+
+#if (POLARSSL_VERSION_MINOR >= 2)
+ #define POLARSSL_API_V1_2_ABOVE
+#endif
+#if (POLARSSL_VERSION_MINOR == 3)
+ #define POLARSSL_API_V1_3_ABOVE
+#endif
+
+#define SSLI_ERROR_WANT_READ -0x0F300 /* PolarSSL v0.x.x uses -0x0f00 -> --0x0f90, v1.x.x uses -0x7080 -> -0x7e80 */
+#define SSLI_ERROR_WANT_WRITE -0x0F310
+
+#define SSLI_ERROR_ZERO_RETURN 0
+#define SSLI_ERROR_CONNRESET POLARSSL_ERR_NET_CONN_RESET
+#define SSLI_ERROR_SYSCALL POLARSSL_ERR_NET_RECV_FAILED
+
+typedef ssl_context SSL_handle_t;
+
+#elif defined(USE_GNUTLS)
+
+#include <gnutls/gnutls.h>
+
+#define SSLI_ERROR_WANT_READ GNUTLS_E_AGAIN
+#define SSLI_ERROR_WANT_WRITE GNUTLS_E_AGAIN
+#define SSLI_ERROR_ZERO_RETURN GNUTLS_E_PREMATURE_TERMINATION
+#define SSLI_ERROR_CONNRESET GNUTLS_E_PREMATURE_TERMINATION
+#define SSLI_ERROR_SYSCALL GNUTLS_E_PREMATURE_TERMINATION
+
+typedef gnutls_session_t SSL_handle_t;
+
+#else /* OpenSSL */