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  **
  ** Copyright (C) 2017 The Qt Company Ltd.
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  ** This file is part of the QtNetwork module of the Qt Toolkit.
  **
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  /****************************************************************************
  **
  ** In addition, as a special exception, the copyright holders listed above give
  ** permission to link the code of its release of Qt with the OpenSSL project's
  ** "OpenSSL" library (or modified versions of the "OpenSSL" library that use the
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  **
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  ** this exception statement from your version of this file.
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  ****************************************************************************/
  
  
  #ifndef QSSLSOCKET_OPENSSLPRE11_SYMBOLS_P_H
  #define QSSLSOCKET_OPENSSLPRE11_SYMBOLS_P_H
  
  //
  //  W A R N I N G
  //  -------------
  //
  // This file is not part of the Qt API. It exists purely as an
  // implementation detail. This header file may change from version to
  // version without notice, or even be removed.
  //
  // We mean it.
  //
  
  // Note: this file does not have QT_BEGIN_NAMESPACE/QT_END_NAMESPACE, it's done
  // in qsslsocket_openssl_symbols_p.h.
  
  #ifndef QSSLSOCKET_OPENSSL_SYMBOLS_P_H
  #error "You are not supposed to use this header file, include qsslsocket_openssl_symbols_p.h instead"
  #endif
  
  unsigned char * q_ASN1_STRING_data(ASN1_STRING *a);
  BIO *q_BIO_new_file(const char *filename, const char *mode);
  void q_ERR_clear_error();
  Q_AUTOTEST_EXPORT BIO *q_BIO_new(BIO_METHOD *a);
  Q_AUTOTEST_EXPORT BIO_METHOD *q_BIO_s_mem();
  int q_CRYPTO_num_locks();
  void q_CRYPTO_set_locking_callback(void (*a)(int, int, const char *, int));
  void q_CRYPTO_set_id_callback(unsigned long (*a)());
  void q_CRYPTO_free(void *a);
  unsigned long q_ERR_peek_last_error();
  void q_ERR_free_strings();
  void q_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
  void q_EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
  
  #if OPENSSL_VERSION_NUMBER >= 0x10000000L
  typedef _STACK STACK;
  #endif
  
  // The typedef we use to make our pre 1.1 code look more like 1.1 (less ifdefs).
  typedef STACK OPENSSL_STACK;
  
  // We resolve q_sk_ functions, but use q_OPENSSL_sk_ macros in code to reduce
  // the amount of #ifdefs.
  int q_sk_num(STACK *a);
  #define q_OPENSSL_sk_num(a) q_sk_num(a)
  void q_sk_pop_free(STACK *a, void (*b)(void *));
  #define q_OPENSSL_sk_pop_free(a, b) q_sk_pop_free(a, b)
  STACK *q_sk_new_null();
  #define q_OPENSSL_sk_new_null() q_sk_new_null()
  
  void q_sk_free(STACK *a);
  
  // Just a name alias (not a function call expression) since in code we take an
  // address of this:
  #define q_OPENSSL_sk_free q_sk_free
  
  #if OPENSSL_VERSION_NUMBER >= 0x10000000L
  void *q_sk_value(STACK *a, int b);
  void q_sk_push(STACK *st, void *data);
  #else
  char *q_sk_value(STACK *a, int b);
  void q_sk_push(STACK *st, char *data);
  #endif // OPENSSL_VERSION_NUMBER >= 0x10000000L
  
  #define q_OPENSSL_sk_value(a, b) q_sk_value(a, b)
  #define q_OPENSSL_sk_push(st, data) q_sk_push(st, data)
  
  #if OPENSSL_VERSION_NUMBER >= 0x10000000L
  SSL_CTX *q_SSL_CTX_new(const SSL_METHOD *a);
  #else
  SSL_CTX *q_SSL_CTX_new(SSL_METHOD *a);
  #endif
  
  int q_SSL_library_init();
  void q_SSL_load_error_strings();
  
  #if OPENSSL_VERSION_NUMBER >= 0x10001000L
  int q_SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
  #endif
  
  #if OPENSSL_VERSION_NUMBER >= 0x10000000L
  #ifndef OPENSSL_NO_SSL2
  const SSL_METHOD *q_SSLv2_client_method();
  #endif
  #ifndef OPENSSL_NO_SSL3_METHOD
  const SSL_METHOD *q_SSLv3_client_method();
  #endif
  const SSL_METHOD *q_SSLv23_client_method();
  const SSL_METHOD *q_TLSv1_client_method();
  const SSL_METHOD *q_TLSv1_1_client_method();
  const SSL_METHOD *q_TLSv1_2_client_method();
  #ifndef OPENSSL_NO_SSL2
  const SSL_METHOD *q_SSLv2_server_method();
  #endif
  #ifndef OPENSSL_NO_SSL3_METHOD
  const SSL_METHOD *q_SSLv3_server_method();
  #endif
  const SSL_METHOD *q_SSLv23_server_method();
  const SSL_METHOD *q_TLSv1_server_method();
  const SSL_METHOD *q_TLSv1_1_server_method();
  const SSL_METHOD *q_TLSv1_2_server_method();
  #else
  #ifndef OPENSSL_NO_SSL2
  SSL_METHOD *q_SSLv2_client_method();
  #endif
  #ifndef OPENSSL_NO_SSL3_METHOD
  SSL_METHOD *q_SSLv3_client_method();
  #endif
  SSL_METHOD *q_SSLv23_client_method();
  SSL_METHOD *q_TLSv1_client_method();
  SSL_METHOD *q_TLSv1_1_client_method();
  SSL_METHOD *q_TLSv1_2_client_method();
  #ifndef OPENSSL_NO_SSL2
  SSL_METHOD *q_SSLv2_server_method();
  #endif
  #ifndef OPENSSL_NO_SSL3_METHOD
  SSL_METHOD *q_SSLv3_server_method();
  #endif
  SSL_METHOD *q_SSLv23_server_method();
  SSL_METHOD *q_TLSv1_server_method();
  SSL_METHOD *q_TLSv1_1_server_method();
  SSL_METHOD *q_TLSv1_2_server_method();
  #endif
  
  STACK_OF(X509) *q_X509_STORE_CTX_get_chain(X509_STORE_CTX *ctx);
  
  #ifdef SSLEAY_MACROS
  int     q_i2d_DSAPrivateKey(const DSA *a, unsigned char **pp);
  int     q_i2d_RSAPrivateKey(const RSA *a, unsigned char **pp);
  RSA *q_d2i_RSAPrivateKey(RSA **a, unsigned char **pp, long length);
  DSA *q_d2i_DSAPrivateKey(DSA **a, unsigned char **pp, long length);
  #define q_PEM_read_bio_RSAPrivateKey(bp, x, cb, u) \
          (RSA *)q_PEM_ASN1_read_bio( \
          (void *(*)(void**, const unsigned char**, long int))q_d2i_RSAPrivateKey, PEM_STRING_RSA, bp, (void **)x, cb, u)
  #define q_PEM_read_bio_DSAPrivateKey(bp, x, cb, u) \
          (DSA *)q_PEM_ASN1_read_bio( \
          (void *(*)(void**, const unsigned char**, long int))q_d2i_DSAPrivateKey, PEM_STRING_DSA, bp, (void **)x, cb, u)
  #define q_PEM_write_bio_RSAPrivateKey(bp,x,enc,kstr,klen,cb,u) \
          PEM_ASN1_write_bio((int (*)(void*, unsigned char**))q_i2d_RSAPrivateKey,PEM_STRING_RSA,\
                             bp,(char *)x,enc,kstr,klen,cb,u)
  #define q_PEM_write_bio_DSAPrivateKey(bp,x,enc,kstr,klen,cb,u) \
          PEM_ASN1_write_bio((int (*)(void*, unsigned char**))q_i2d_DSAPrivateKey,PEM_STRING_DSA,\
                             bp,(char *)x,enc,kstr,klen,cb,u)
  #define q_PEM_read_bio_DHparams(bp, dh, cb, u) \
          (DH *)q_PEM_ASN1_read_bio( \
          (void *(*)(void**, const unsigned char**, long int))q_d2i_DHparams, PEM_STRING_DHPARAMS, bp, (void **)x, cb, u)
  #endif // SSLEAY_MACROS
  
  #define q_SSL_CTX_set_options(ctx,op) q_SSL_CTX_ctrl((ctx),SSL_CTRL_OPTIONS,(op),NULL)
  #define q_SSL_set_options(ssl,op) q_SSL_ctrl((ssl),SSL_CTRL_OPTIONS,(op),nullptr)
  #define q_SKM_sk_num(type, st) ((int (*)(const STACK_OF(type) *))q_sk_num)(st)
  #define q_SKM_sk_value(type, st,i) ((type * (*)(const STACK_OF(type) *, int))q_sk_value)(st, i)
  #define q_X509_getm_notAfter(x) X509_get_notAfter(x)
  #define q_X509_getm_notBefore(x) X509_get_notBefore(x)
  
  // "Forward compatibility" with OpenSSL 1.1 (to save on #if-ery elsewhere):
  #define q_X509_get_version(x509) q_ASN1_INTEGER_get((x509)->cert_info->version)
  #define q_ASN1_STRING_get0_data(x) q_ASN1_STRING_data(x)
  #define q_EVP_PKEY_base_id(pkey) ((pkey)->type)
  #define q_X509_get_pubkey(x509) q_X509_PUBKEY_get((x509)->cert_info->key)
  #define q_SSL_SESSION_get_ticket_lifetime_hint(s) ((s)->tlsext_tick_lifetime_hint)
  #define q_RSA_bits(rsa) q_BN_num_bits((rsa)->n)
  #define q_DSA_bits(dsa) q_BN_num_bits((dsa)->p)
  #define q_X509_STORE_set_verify_cb(s,c) X509_STORE_set_verify_cb_func((s),(c))
  
  char *q_CONF_get1_default_config_file();
  void q_OPENSSL_add_all_algorithms_noconf();
  void q_OPENSSL_add_all_algorithms_conf();
  
  long q_SSLeay();
  const char *q_SSLeay_version(int type);
  
  #if QT_CONFIG(dtls)
  // DTLS:
  extern "C"
  {
  typedef int (*CookieVerifyCallback)(SSL *, unsigned char *, unsigned);
  }
  
  #define q_DTLSv1_listen(ssl, peer) q_SSL_ctrl(ssl, DTLS_CTRL_LISTEN, 0, (void *)peer)
  
  const SSL_METHOD *q_DTLSv1_server_method();
  const SSL_METHOD *q_DTLSv1_client_method();
  const SSL_METHOD *q_DTLSv1_2_server_method();
  const SSL_METHOD *q_DTLSv1_2_client_method();
  #endif // dtls
  
  #endif // QSSLSOCKET_OPENSSL_PRE11_SYMBOLS_P_H
  