reactos/lib/ntdll/dbg/print.c

   1 /* $Id$
   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 #include <ddk/ntddk.h>
  13 #include <stdarg.h>
  14 #include <stdio.h>
  15 #include <string.h>
  16
  17
  18 /* FUNCTIONS ***************************************************************/
  19
  20 ULONG DbgService (ULONG Service, PVOID Context1, PVOID Context2);
  21 __asm__ ("\n\t.global _DbgService\n\t"
  22          "_DbgService:\n\t"
  23          "mov 4(%esp), %eax\n\t"
  24          "mov 8(%esp), %ecx\n\t"
  25          "mov 12(%esp), %edx\n\t"
  26          "int $0x2D\n\t"
  27          "ret\n\t");
  28
  29 /*
  30  * @unimplemented
  31  */
  32 ULONG
  33 DbgPrintEx(
  34     IN ULONG ComponentId,
  35     IN ULONG Level,
  36     IN PCH Format,
  37     ...
  38     )
  39 {
  40    ANSI_STRING DebugString;
  41    CHAR Buffer[4096];
  42    va_list ap;
  43
  44    /* init ansi string */
  45    DebugString.Buffer = Buffer;
  46    DebugString.MaximumLength = sizeof(Buffer);
  47
  48    va_start (ap, Format);
  49    DebugString.Length = _vsnprintf (Buffer, sizeof(Buffer), Format, ap);
  50    va_end (ap);
  51
  52    DbgService (1, &DebugString, NULL);
  53
  54    return (ULONG)DebugString.Length;
  55 }
  56
  57
  58 /*
  59  * @implemented
  60  */
  61 ULONG
  62 DbgPrint(PCH Format, ...)
  63 {
  64    ANSI_STRING DebugString;
  65    CHAR Buffer[4096];
  66    va_list ap;
  67
  68    /* init ansi string */
  69    DebugString.Buffer = Buffer;
  70    DebugString.MaximumLength = sizeof(Buffer);
  71
  72    va_start (ap, Format);
  73    DebugString.Length = _vsnprintf (Buffer, sizeof(Buffer), Format, ap);
  74    va_end (ap);
  75
  76
  77    return DbgPrintEx (0, 0, DebugString.Buffer);
  78 }
  79
  80
  81 /*
  82  * @implemented
  83  */
  84 VOID
  85 STDCALL
  86 DbgPrompt (
  87         PCH OutputString,
  88         PCH InputString,
  89         USHORT InputSize
  90         )
  91 {
  92         ANSI_STRING Output;
  93         ANSI_STRING Input;
  94
  95         Input.Length = 0;
  96         Input.MaximumLength = InputSize;
  97         Input.Buffer = InputString;
  98
  99         Output.Length = strlen (OutputString);
 100         Output.MaximumLength = Output.Length + 1;
 101         Output.Buffer = OutputString;
 102
 103         DbgService (2,
 104                     &Output,
 105                     &Input);
 106 }
 107
 108 /* EOF */