AppPkg/Applications/Sockets/GetHostByName/GetHostByName.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   SPDX-License-Identifier: BSD-2-Clause-Patent
   6 **/
   7 #include <errno.h>
   8 #include <netdb.h>
   9 #include <string.h>
  10 #include <Uefi.h>
  11 #include <unistd.h>
  12
  13 #include <Library/DebugLib.h>
  14 #include <Library/UefiLib.h>
  15
  16 #include <sys/socket.h>
  17
  18 char mBuffer[65536];
  19
  20
  21 /** Translate the host name into an IP address
  22
  23   @param[in]  Argc  The number of arguments
  24   @param[in]  Argv  The argument value array
  25
  26   @retval  0        The application exited normally.
  27   @retval  Other    An error occurred.
  28 **/
  29 int
  30 main (
  31   IN int Argc,
  32   IN char **Argv
  33   )
  34 {
  35   UINTN Index;
  36   struct hostent * pHost;
  37   UINT8 * pIpAddress;
  38   char ** ppName;
  39
  40   DEBUG (( DEBUG_INFO,
  41             "%a starting\r\n",
  42             Argv[0]));
  43
  44   //  Determine if the host name is specified
  45   if ( 1 == Argc ) {
  46     Print ( L"%a  <host name>\r\n", Argv[0]);
  47   }
  48   else {
  49     //  Translate the host name
  50     pHost = gethostbyname ( Argv[1]);
  51     if ( NULL == pHost ) {
  52       Print ( L"ERROR - host not found, h_errno: %d\r\n", h_errno );
  53     }
  54     else {
  55       pIpAddress = (UINT8 *)pHost->h_addr;
  56       Print ( L"%d.%d.%d.%d, Type %d, %a\r\n",
  57               pIpAddress[0],
  58               pIpAddress[1],
  59               pIpAddress[2],
  60               pIpAddress[3],
  61               pHost->h_addrtype,
  62               pHost->h_name );
  63
  64       //  Display the other addresses
  65       for ( Index = 1; NULL != pHost->h_addr_list[Index]; Index++ ) {
  66         pIpAddress = (UINT8 *)pHost->h_addr_list[Index];
  67         Print ( L"%d.%d.%d.%d\r\n",
  68                 pIpAddress[0],
  69                 pIpAddress[1],
  70                 pIpAddress[2],
  71                 pIpAddress[3]);
  72       }
  73
  74       //  Display the list of aliases
  75       ppName = pHost->h_aliases;
  76       if (( NULL == ppName ) || ( NULL == *ppName )) {
  77         Print ( L"No aliases\r\n" );
  78       }
  79       else {
  80         Print ( L"Aliases: " );
  81         while ( NULL != *ppName ) {
  82           //
  83           //  Display the alias
  84           //
  85           Print ( L"%a", *ppName );
  86
  87           //
  88           //  Set the next alias
  89           //
  90           ppName += 1;
  91           if ( NULL != *ppName ) {
  92             Print ( L", " );
  93           }
  94         }
  95         Print ( L"\r\n" );
  96       }
  97     }
  98   }
  99   //  All done
 100   return errno;
 101 }