AppPkg/Applications/Sockets/GetHostByDns/GetHostByDns.c

   1 /** @file
   2   Translate the host name into an IP address
   3
   4   Copyright (c) 2011 - 2014, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials are licensed and made available under
   6   the terms and conditions of the BSD License that accompanies this distribution.
   7   The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php.
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 **/
  13 #include <errno.h>
  14 #include <netdb.h>
  15 #include <string.h>
  16 #include <Uefi.h>
  17 #include <unistd.h>
  18
  19 #include <Library/DebugLib.h>
  20 #include <Library/UefiLib.h>
  21
  22 #include <sys/socket.h>
  23
  24 struct hostent * _gethostbydnsname (const char *, int);
  25
  26 char mBuffer[65536];
  27
  28
  29 /** Translate the host name into an IP address
  30
  31   @param [in] Argc  The number of arguments
  32   @param [in] Argv  The argument value array
  33
  34   @retval  0        The application exited normally.
  35   @retval  Other    An error occurred.
  36 **/
  37 int
  38 main (
  39   IN int Argc,
  40   IN char **Argv
  41   )
  42 {
  43   UINT8 * pIpAddress;
  44   struct hostent * pHost;
  45
  46   DEBUG (( DEBUG_INFO,
  47             "%a starting\r\n",
  48             Argv[0]));
  49
  50   //  Determine if the host name is specified
  51   if ( 1 == Argc ) {
  52     Print ( L"%a  <host name>\r\n", Argv[0]);
  53   }
  54   else {
  55     //  Translate the host name
  56     pHost = _gethostbydnsname ( Argv[1], AF_INET );
  57     if ( NULL == pHost ) {
  58       Print ( L"ERROR - host not found, h_errno: %d\r\n", h_errno );
  59     }
  60     else {
  61       pIpAddress = (UINT8 *)pHost->h_addr;
  62       Print ( L"%a: Type %d, %d.%d.%d.%d\r\n",
  63               pHost->h_name,
  64               pHost->h_addrtype,
  65               pIpAddress[0],
  66               pIpAddress[1],
  67               pIpAddress[2],
  68               pIpAddress[3]);
  69     }
  70   }
  71   //  All done
  72   return errno;
  73 }