text: /*
   * Copyright (C) 2010-2016 Free Software Foundation, Inc.
   * Copyright (C) 2016 Red Hat, Inc.
   *
   * Author: Nikos Mavrogiannopoulos
   *
   * This file is part of GnuTLS.
   *
   * The GnuTLS is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public License
   * as published by the Free Software Foundation; either version 2.1 of
   * the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public License
   * along with this program.  If not, see <https://www.gnu.org/licenses/>
   *
   */
  
  #ifndef GNUTLS_LIB_SYSTEM_H
  #define GNUTLS_LIB_SYSTEM_H
  
  #include "gnutls_int.h"
  #include <time.h>
  #include <sys/time.h>
  
  #ifdef _WIN32
  # if defined(__MINGW32__) && !defined(__MINGW64__) && __MINGW32_MAJOR_VERSION <= 3 && __MINGW32_MINOR_VERSION <= 20
  #  define NEED_CERT_ENUM_CRLS
  typedef PCCRL_CONTEXT WINAPI(*CertEnumCRLsInStoreFunc) (HCERTSTORE
  							 hCertStore,
  							 PCCRL_CONTEXT
  							 pPrevCrlContext);
  extern CertEnumCRLsInStoreFunc pCertEnumCRLsInStore;
  # else
  #  define pCertEnumCRLsInStore CertEnumCRLsInStore
  # endif
  #include <windows.h>		/* for Sleep */
  #else
  #include <sys/uio.h>		/* for writev */
  #endif
  
  #ifdef _POSIX_PATH_MAX
  # define GNUTLS_PATH_MAX _POSIX_PATH_MAX
  #else
  # define GNUTLS_PATH_MAX 256
  #endif
  
  int system_errno(gnutls_transport_ptr_t);
  
  #ifdef _WIN32
  ssize_t system_write(gnutls_transport_ptr_t ptr, const void *data,
  		     size_t data_size);
  #else
  #define HAVE_WRITEV
  ssize_t system_writev(gnutls_transport_ptr_t ptr, const giovec_t * iovec,
  		      int iovec_cnt);
  ssize_t system_writev_nosignal(gnutls_transport_ptr_t ptr, const giovec_t * iovec,
  		      int iovec_cnt);
  ssize_t system_writev_tfo(gnutls_session_t ptr, const giovec_t * iovec,
  		      int iovec_cnt);
  ssize_t system_writev_nosignal_tfo(gnutls_session_t ptr, const giovec_t * iovec,
  		      int iovec_cnt);
  #endif
  ssize_t system_read(gnutls_transport_ptr_t ptr, void *data,
  		    size_t data_size);
  
  #if defined(_WIN32)
  # define HAVE_WIN32_LOCKS
  #elif defined(HAVE_LIBPTHREAD) || defined(HAVE_PTHREAD_MUTEX_LOCK)
  # define HAVE_PTHREAD_LOCKS
  #else
  # define HAVE_NO_LOCKS
  #endif
  
  typedef void (*gnutls_gettime_func) (struct timespec *);
  
  extern gnutls_time_func gnutls_time;
  extern gnutls_gettime_func gnutls_gettime;
  
  static inline void millisleep(unsigned int ms)
  {
  #ifdef _WIN32
  	Sleep(ms);
  #else
  	struct timespec ts;
  
  	ts.tv_sec = 0;
  	ts.tv_nsec = ms * 1000 * 1000;
  
  	nanosleep(&ts, NULL);
  #endif
  }
  
  int _gnutls_find_config_path(char *path, size_t max_size);
  int _gnutls_ucs2_to_utf8(const void *data, size_t size,
  			 gnutls_datum_t * output, unsigned bigendian);
  int _gnutls_utf8_to_ucs2(const void *data, size_t size,
  			 gnutls_datum_t * output, unsigned be);
  
  void _gnutls_global_set_gettime_function(gnutls_gettime_func gettime_func);
  
  int gnutls_system_global_init(void);
  void gnutls_system_global_deinit(void);
  
  #endif /* GNUTLS_LIB_SYSTEM_H */
  