i386/libsaio/console.c

   1 /*
   2  * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 2.0 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Mach Operating System
  26  * Copyright (c) 1990 Carnegie-Mellon University
  27  * Copyright (c) 1989 Carnegie-Mellon University
  28  * All rights reserved.  The CMU software License Agreement specifies
  29  * the terms and conditions for use and redistribution.
  30  */
  31
  32 /*
  33  *                      INTEL CORPORATION PROPRIETARY INFORMATION
  34  *
  35  *      This software is supplied under the terms of a license  agreement or
  36  *      nondisclosure agreement with Intel Corporation and may not be copied
  37  *      nor disclosed except in accordance with the terms of that agreement.
  38  *
  39  *      Copyright 1988, 1989 Intel Corporation
  40  */
  41
  42 /*
  43  * Copyright 1993 NeXT, Inc.
  44  * All rights reserved.
  45  */
  46
  47 #include "libsaio.h"
  48 #include "bootstruct.h"
  49
  50 BOOL gVerboseMode;
  51 BOOL gErrors;
  52
  53 /*
  54  * write one character to console
  55  */
  56 void putchar(int c)
  57 {
  58         if ( c == '\t' )
  59         {
  60                 for (c = 0; c < 8; c++) putc(' ');
  61                 return;
  62         }
  63
  64         if ( c == '\n' )
  65     {
  66                 putc('\r');
  67     }
  68
  69         putc(c);
  70 }
  71
  72 int getc()
  73 {
  74     int c = bgetc();
  75
  76     if ((c & 0xff) == 0)
  77         return c;
  78     else
  79         return (c & 0xff);
  80 }
  81
  82 // Read and echo a character from console.  This doesn't echo backspace
  83 // since that screws up higher level handling
  84
  85 int getchar()
  86 {
  87         register int c = getc();
  88
  89         if ( c == '\r' ) c = '\n';
  90
  91         if ( c >= ' ' && c < 0x7f) putchar(c);
  92
  93         return (c);
  94 }
  95
  96 int printf(const char * fmt, ...)
  97 {
  98     va_list ap;
  99     if (bootArgs->Video.v_display != VGA_TEXT_MODE) return -1;
 100     va_start(ap, fmt);
 101     prf(fmt, ap, putchar, 0);
 102     va_end(ap);
 103     return 0;
 104 }
 105
 106 int verbose(const char * fmt, ...)
 107 {
 108     va_list ap;
 109
 110     if (gVerboseMode)
 111     {
 112         va_start(ap, fmt);
 113         prf(fmt, ap, putchar, 0);
 114         va_end(ap);
 115     }
 116     return(0);
 117 }
 118
 119 int error(const char * fmt, ...)
 120 {
 121     va_list ap;
 122     gErrors = YES;
 123     va_start(ap, fmt);
 124     prf(fmt, ap, putchar, 0);
 125     va_end(ap);
 126     return(0);
 127 }
 128
 129 void stop(const char * fmt, ...)
 130 {
 131     va_list ap;
 132
 133     printf("\n");
 134     va_start(ap, fmt);
 135     prf(fmt, ap, putchar, 0);
 136     va_end(ap);
 137     printf("\n");
 138     halt();
 139 }