AppPkg/Applications/Sockets/GetHostByName/GetHostByName.c

   1 /** @file
   2   Translate the host name into an IP address
   3
   4   Copyright (c) 2011-2012, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  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 **/
  14
  15 #include <errno.h>
  16 #include <netdb.h>
  17 #include <string.h>
  18 #include <Uefi.h>
  19 #include <unistd.h>
  20
  21 #include <Library/DebugLib.h>
  22 #include <Library/UefiLib.h>
  23
  24 #include <sys/socket.h>
  25
  26 char mBuffer[65536];
  27
  28
  29 /**
  30   Translate the host name into an IP address
  31
  32   @param [in] Argc  The number of arguments
  33   @param [in] Argv  The argument value array
  34
  35   @retval  0        The application exited normally.
  36   @retval  Other    An error occurred.
  37 **/
  38 int
  39 main (
  40   IN int Argc,
  41   IN char **Argv
  42   )
  43 {
  44   int AppStatus;
  45   UINTN Index;
  46   struct hostent * pHost;
  47   UINT8 * pIpAddress;
  48   char ** ppName;
  49
  50   DEBUG (( DEBUG_INFO,
  51             "%a starting\r\n",
  52             Argv[0]));
  53
  54   //
  55   //  Determine if the host name is specified
  56   //
  57   AppStatus = 0;
  58   if ( 1 == Argc ) {
  59     Print ( L"%a  <host name>\r\n", Argv[0]);
  60   }
  61   else {
  62     //
  63     //  Translate the host name
  64     //
  65     pHost = gethostbyname ( Argv[1]);
  66     if ( NULL == pHost ) {
  67       Print ( L"ERROR - host not found, h_errno: %d\r\n", h_errno );
  68     }
  69     else {
  70       pIpAddress = (UINT8 *)pHost->h_addr;
  71       Print ( L"%d.%d.%d.%d, Type %d, %a\r\n",
  72               pIpAddress[0],
  73               pIpAddress[1],
  74               pIpAddress[2],
  75               pIpAddress[3],
  76               pHost->h_addrtype,
  77               pHost->h_name );
  78
  79       //
  80       //  Display the other addresses
  81       //
  82       for ( Index = 1; NULL != pHost->h_addr_list[Index]; Index++ ) {
  83         pIpAddress = (UINT8 *)pHost->h_addr_list[Index];
  84         Print ( L"%d.%d.%d.%d\r\n",
  85                 pIpAddress[0],
  86                 pIpAddress[1],
  87                 pIpAddress[2],
  88                 pIpAddress[3]);
  89       }
  90
  91       //
  92       //  Display the list of aliases
  93       //
  94       ppName = pHost->h_aliases;
  95       if (( NULL == ppName ) || ( NULL == *ppName )) {
  96         Print ( L"No aliases\r\n" );
  97       }
  98       else {
  99         Print ( L"Aliases: " );
 100         while ( NULL != *ppName ) {
 101           //
 102           //  Display the alias
 103           //
 104           Print ( L"%a", *ppName );
 105
 106           //
 107           //  Set the next alias
 108           //
 109           ppName += 1;
 110           if ( NULL != *ppName ) {
 111             Print ( L", " );
 112           }
 113         }
 114         Print ( L"\r\n" );
 115       }
 116     }
 117   }
 118
 119   //
 120   //  All done
 121   //
 122   return errno;
 123 }