text: /*
   * Copyright (c) 2007-2016, Cameron Rich
   * 
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * * Redistributions of source code must retain the above copyright notice,
   *   this list of conditions and the following disclaimer.
   * * Redistributions in binary form must reproduce the above copyright notice,
   *   this list of conditions and the following disclaimer in the documentation
   *   and/or other materials provided with the distribution.
   * * Neither the name of the axTLS project nor the names of its contributors
   *   may be used to endorse or promote products derived from this software
   *   without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /**
   * @file os_port.c
   *
   * OS specific functions.
   */
  #include <time.h>
  #include <stdlib.h>
  #include <errno.h>
  #include <stdarg.h>
  #include <string.h>
  #include "os_port.h"
  
  #ifdef WIN32
  /**
   * gettimeofday() not in Win32
   */
  EXP_FUNC void STDCALL gettimeofday(struct timeval* t, void* timezone)
  {
  #if defined(_WIN32_WCE)
      t->tv_sec = time(NULL);
      t->tv_usec = 0;                         /* 1sec precision only */
  #else
      struct _timeb timebuffer;
      _ftime(&timebuffer);
      t->tv_sec = (long)timebuffer.time;
      t->tv_usec = 1000 * timebuffer.millitm; /* 1ms precision */
  #endif
  }
  
  /**
   * strcasecmp() not in Win32
   */
  EXP_FUNC int STDCALL strcasecmp(const char *s1, const char *s2)
  {
      while (tolower(*s1) == tolower(*s2++))
      {
          if (*s1++ == '\0')
          {
              return 0;
          }
      }
  
      return *(unsigned char *)s1 - *(unsigned char *)(s2 - 1);
  }
  
  
  EXP_FUNC int STDCALL getdomainname(char *buf, int buf_size)
  {
      HKEY hKey;
      unsigned long datatype;
      unsigned long bufferlength = buf_size;
  
      if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
              TEXT("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters"),
                          0, KEY_QUERY_VALUE, &hKey) != ERROR_SUCCESS)
          return -1;
  
      RegQueryValueEx(hKey, "Domain", NULL, &datatype, buf, &bufferlength);
      RegCloseKey(hKey);
      return 0;
  }
  #endif
  
  