reactos/lib/ntdll/dbg/print.c

   1 /* $Id: print.c,v 1.5 2002/09/07 15:12:39 chorns Exp $
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            lib/ntdll/dbg/print.c
   6  * PURPOSE:         Debug output
   7  * PROGRAMMER:      Eric Kohl
   8  * UPDATE HISTORY:
   9  *                  Created 28/12/1999
  10  */
  11
  12 /* INCLUDES ***************************************************************/
  13
  14 #define NTOS_USER_MODE
  15 #include <ntos.h>
  16 #include <stdarg.h>
  17 #include <stdio.h>
  18 #include <string.h>
  19
  20 #define NDEBUG
  21 #include <debug.h>
  22
  23 /* FUNCTIONS ***************************************************************/
  24
  25 ULONG DbgService (ULONG Service, PVOID Context1, PVOID Context2);
  26 __asm__ ("\n\t.global _DbgService\n\t"
  27          "_DbgService:\n\t"
  28          "mov 4(%esp), %eax\n\t"
  29          "mov 8(%esp), %ecx\n\t"
  30          "mov 12(%esp), %edx\n\t"
  31          "int $0x2D\n\t"
  32          "ret\n\t");
  33
  34 ULONG
  35 DbgPrint(PCH Format, ...)
  36 {
  37    ANSI_STRING DebugString;
  38    CHAR Buffer[4096];
  39    va_list ap;
  40
  41    /* init ansi string */
  42    DebugString.Buffer = Buffer;
  43    DebugString.MaximumLength = sizeof(Buffer);
  44
  45    va_start (ap, Format);
  46    DebugString.Length = _vsnprintf (Buffer, sizeof(Buffer), Format, ap);
  47    va_end (ap);
  48
  49    DbgService (1, &DebugString, NULL);
  50
  51    return (ULONG)DebugString.Length;
  52 }
  53
  54
  55 VOID
  56 STDCALL
  57 DbgPrompt (
  58         PCH OutputString,
  59         PCH InputString,
  60         USHORT InputSize
  61         )
  62 {
  63         ANSI_STRING Output;
  64         ANSI_STRING Input;
  65
  66         Input.Length = 0;
  67         Input.MaximumLength = InputSize;
  68         Input.Buffer = InputString;
  69
  70         Output.Length = strlen (OutputString);
  71         Output.MaximumLength = Output.Length + 1;
  72         Output.Buffer = OutputString;
  73
  74         DbgService (2,
  75                     &Output,
  76                     &Input);
  77 }
  78
  79 /* EOF */