kernel/cmdline.cpp

   1 /*
   2 lightOS kernel
   3 Copyright (C) 2009 Jörg Pfähler
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  18 */
  19 #include <kernel/cmdline.hpp>
  20 #include <kernel/log.hpp>
  21
  22 static const char* skip_param(const char* cmdline)
  23 {
  24   // Skip a parameter
  25   while (*cmdline != '\0' && *cmdline != ' ')
  26     ++cmdline;
  27   while (*cmdline != '\0' && *cmdline == ' ')
  28     ++cmdline;
  29   return cmdline;
  30 }
  31
  32 void kernel::parse_cmdline(const char* cmdline,
  33                            bool (*arch_callback)(const char*))
  34 {
  35   // Skip the kernel name
  36   cmdline = skip_param(cmdline);
  37
  38   while (*cmdline != '\0')
  39   {
  40     if (!arch_callback(cmdline) &&
  41         !kernel::cmdline_args(cmdline))
  42     {
  43       // Unknown command line option
  44       FATAL("Unkown commandline option \"" << cmdline << "\".");
  45     }
  46
  47     // Skip the processed parameter
  48     cmdline = skip_param(cmdline);
  49   }
  50 }
  51
  52 bool kernel::cmdline_args(const char* arg)
  53 {
  54   // NOTE: architecture independant arguments here
  55   return false;
  56 }