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   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 char mBuffer[65536];
  25
  26
  27 /** Translate the host name into an IP address
  28
  29   @param[in]  Argc  The number of arguments
  30   @param[in]  Argv  The argument value array
  31
  32   @retval  0        The application exited normally.
  33   @retval  Other    An error occurred.
  34 **/
  35 int
  36 main (
  37   IN int Argc,
  38   IN char **Argv
  39   )
  40 {
  41   UINTN Index;
  42   struct hostent * pHost;
  43   UINT8 * pIpAddress;
  44   char ** ppName;
  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 = gethostbyname ( Argv[1]);
  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"%d.%d.%d.%d, Type %d, %a\r\n",
  63               pIpAddress[0],
  64               pIpAddress[1],
  65               pIpAddress[2],
  66               pIpAddress[3],
  67               pHost->h_addrtype,
  68               pHost->h_name );
  69
  70       //  Display the other addresses
  71       for ( Index = 1; NULL != pHost->h_addr_list[Index]; Index++ ) {
  72         pIpAddress = (UINT8 *)pHost->h_addr_list[Index];
  73         Print ( L"%d.%d.%d.%d\r\n",
  74                 pIpAddress[0],
  75                 pIpAddress[1],
  76                 pIpAddress[2],
  77                 pIpAddress[3]);
  78       }
  79
  80       //  Display the list of aliases
  81       ppName = pHost->h_aliases;
  82       if (( NULL == ppName ) || ( NULL == *ppName )) {
  83         Print ( L"No aliases\r\n" );
  84       }
  85       else {
  86         Print ( L"Aliases: " );
  87         while ( NULL != *ppName ) {
  88           //
  89           //  Display the alias
  90           //
  91           Print ( L"%a", *ppName );
  92
  93           //
  94           //  Set the next alias
  95           //
  96           ppName += 1;
  97           if ( NULL != *ppName ) {
  98             Print ( L", " );
  99           }
 100         }
 101         Print ( L"\r\n" );
 102       }
 103     }
 104   }
 105   //  All done
 106   return errno;
 107 }