EdkModulePkg/Universal/Network/PxeBc/Dxe/Print.c

   1 /*++
   2 Copyright (c) 2006, Intel Corporation
   3 All rights reserved. This program and the accompanying materials
   4 are licensed and made available under the terms and conditions of the BSD License
   5 which accompanies this distribution.  The full text of the license may be found at
   6 http://opensource.org/licenses/bsd-license.php
   7
   8 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   9 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  10
  11 Module Name:
  12         Print.c
  13
  14 Abstract:
  15
  16 --*/
  17
  18
  19 #include <Bc.h>
  20
  21 UINTN
  22 EFIAPI
  23 AsciiPrint (
  24   IN CONST CHAR8 *Format,
  25   ...
  26   )
  27 /*++
  28
  29 Routine Description:
  30
  31   Print function for a maximum of PXE_MAX_PRINT_BUFFER ascii
  32   characters.
  33
  34 Arguments:
  35
  36   Format - Ascii format string see file header for more details.
  37
  38   ...    - Vararg list consumed by processing Format.
  39
  40 Returns:
  41
  42   Number of characters printed.
  43
  44 --*/
  45 {
  46   UINTN   Return;
  47   VA_LIST Marker;
  48   UINTN   Index;
  49   UINTN   MaxIndex;
  50   CHAR16  Buffer[PXE_MAX_PRINT_BUFFER];
  51   CHAR16  UnicodeFormat[PXE_MAX_PRINT_BUFFER];
  52
  53   MaxIndex = AsciiStrLen ((CHAR8 *) Format);
  54   if (MaxIndex > PXE_MAX_PRINT_BUFFER) {
  55     //
  56     // Format string was too long for use to process.
  57     //
  58     return 0;
  59   }
  60
  61   for (Index = 0; Index < PXE_MAX_PRINT_BUFFER; Index++) {
  62     UnicodeFormat[Index] = (CHAR16) Format[Index];
  63   }
  64
  65   VA_START (Marker, Format);
  66   Return = UnicodeVSPrint (Buffer, sizeof (Buffer), UnicodeFormat, Marker);
  67   VA_END (Marker);
  68
  69   //
  70   // Need to convert to Unicode to do an OutputString
  71   //
  72
  73   if (gST->ConOut != NULL) {
  74     //
  75     // To be extra safe make sure ConOut has been initialized
  76     //
  77     gST->ConOut->OutputString (gST->ConOut, Buffer);
  78   }
  79
  80   return Return;
  81 }