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 #include <cmdline.h>
  23 #include <rtl.h>
  24
  25 static CMDLINEINFO CmdLineInfo;
  26
  27 static char *
  28 SkipWhitespace(char *s)
  29 {
  30   while ('\0' != *s && isspace(*s))
  31     {
  32       s++;
  33     }
  34
  35   return s;
  36 }
  37
  38 void
  39 CmdLineParse(char *CmdLine)
  40 {
  41   char *s;
  42   char *Name;
  43   char *Value;
  44   char *End;
  45
  46   CmdLineInfo.DefaultOperatingSystem = NULL;
  47   CmdLineInfo.TimeOut = -1;
  48
  49   if (NULL == CmdLine)
  50     {
  51       return;
  52     }
  53
  54   /* Skip over "kernel name" */
  55   s = CmdLine;
  56   while ('\0' != *s && ! isspace(*s))
  57     {
  58       s++;
  59     }
  60   s = SkipWhitespace(s);
  61
  62   while ('\0' != *s)
  63     {
  64       Name = s;
  65       while (! isspace(*s) && '=' != *s && '\0' != *s)
  66         {
  67           s++;
  68         }
  69       End = s;
  70       s = SkipWhitespace(s);
  71       if ('=' == *s)
  72         {
  73           s++;
  74           *End = '\0';
  75           s = SkipWhitespace(s);
  76           if ('"' == *s)
  77             {
  78               s++;
  79               Value = s;
  80               while ('"' != *s && '\0' != *s)
  81                 {
  82                   s++;
  83                 }
  84             }
  85           else
  86             {
  87               Value = s;
  88               while (! isspace(*s) && '\0' != *s)
  89                 {
  90                   s++;
  91                 }
  92             }
  93           if ('\0' != *s)
  94             {
  95               *s++ = '\0';
  96             }
  97           if (0 == stricmp(Name, "defaultos"))
  98             {
  99               CmdLineInfo.DefaultOperatingSystem = Value;
 100             }
 101           else if (0 == stricmp(Name, "timeout"))
 102             {
 103               CmdLineInfo.TimeOut = atoi(Value);
 104             }
 105         }
 106     }
 107 }
 108
 109 const char *
 110 CmdLineGetDefaultOS(void)
 111 {
 112   return CmdLineInfo.DefaultOperatingSystem;
 113 }
 114
 115 LONG
 116 CmdLineGetTimeOut(void)
 117 {
 118   return CmdLineInfo.TimeOut;
 119 }
 120
 121 /* EOF */
 122