reactos/boot/freeldr/freeldr/cmdline.c

   1 /* $Id$
   2  *
   3  *  FreeLoader
   4  *  Copyright (C) 1998-2003  Brian Palmer  <brianp@sginet.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include <freeldr.h>
  22
  23 static CMDLINEINFO CmdLineInfo;
  24
  25 static char *
  26 SkipWhitespace(char *s)
  27 {
  28   while ('\0' != *s && isspace(*s))
  29     {
  30       s++;
  31     }
  32
  33   return s;
  34 }
  35
  36 void
  37 CmdLineParse(char *CmdLine)
  38 {
  39   char *s;
  40   char *Name;
  41   char *Value;
  42   char *End;
  43
  44   CmdLineInfo.DefaultOperatingSystem = NULL;
  45   CmdLineInfo.TimeOut = -1;
  46
  47   if (NULL == CmdLine)
  48     {
  49       return;
  50     }
  51
  52   /* Skip over "kernel name" */
  53   s = CmdLine;
  54   while ('\0' != *s && ! isspace(*s))
  55     {
  56       s++;
  57     }
  58   s = SkipWhitespace(s);
  59
  60   while ('\0' != *s)
  61     {
  62       Name = s;
  63       while (! isspace(*s) && '=' != *s && '\0' != *s)
  64         {
  65           s++;
  66         }
  67       End = s;
  68       s = SkipWhitespace(s);
  69       if ('=' == *s)
  70         {
  71           s++;
  72           *End = '\0';
  73           s = SkipWhitespace(s);
  74           if ('"' == *s)
  75             {
  76               s++;
  77               Value = s;
  78               while ('"' != *s && '\0' != *s)
  79                 {
  80                   s++;
  81                 }
  82             }
  83           else
  84             {
  85               Value = s;
  86               while (! isspace(*s) && '\0' != *s)
  87                 {
  88                   s++;
  89                 }
  90             }
  91           if ('\0' != *s)
  92             {
  93               *s++ = '\0';
  94             }
  95           if (0 == _stricmp(Name, "defaultos"))
  96             {
  97               CmdLineInfo.DefaultOperatingSystem = Value;
  98             }
  99           else if (0 == _stricmp(Name, "timeout"))
 100             {
 101               CmdLineInfo.TimeOut = atoi(Value);
 102             }
 103         }
 104     }
 105 }
 106
 107 const char *
 108 CmdLineGetDefaultOS(void)
 109 {
 110   return CmdLineInfo.DefaultOperatingSystem;
 111 }
 112
 113 LONG
 114 CmdLineGetTimeOut(void)
 115 {
 116   return CmdLineInfo.TimeOut;
 117 }
 118
 119 /* EOF */
 120