freeldr/freeldr/arcname.c

   1 /*
   2  *  FreeLoader - arcname.c
   3  *
   4  *  Copyright (C) 2001  Brian Palmer  <brianp@sginet.com>
   5  *  Copyright (C) 2001  Eric Kohl
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "freeldr.h"
  23 #include "arcname.h"
  24 #include "stdlib.h"
  25
  26
  27 BOOL DissectArcPath(char *ArcPath, char *BootPath, PULONG BootDrive, PULONG BootPartition)
  28 {
  29         char *p;
  30
  31         if (_strnicmp(ArcPath, "multi(0)disk(0)", 15) != 0)
  32                 return FALSE;
  33
  34         p = ArcPath + 15;
  35         if (_strnicmp(p, "fdisk(", 6) == 0)
  36         {
  37                 /*
  38                  * floppy disk path:
  39                  *  multi(0)disk(0)fdisk(x)\path
  40                  */
  41                 p = p + 6;
  42                 *BootDrive = atoi(p);
  43                 p = strchr(p, ')');
  44                 if (p == NULL)
  45                         return FALSE;
  46                 p++;
  47                 *BootPartition = 0;
  48         }
  49         else if (_strnicmp(p, "rdisk(", 6) == 0)
  50         {
  51                 /*
  52                  * hard disk path:
  53                  *  multi(0)disk(0)rdisk(x)partition(y)\path
  54                  */
  55                 p = p + 6;
  56                 *BootDrive = atoi(p) + 0x80;
  57                 p = strchr(p, ')');
  58                 if ((p == NULL) || (_strnicmp(p, ")partition(", 11) != 0))
  59                         return FALSE;
  60                 p = p + 11;
  61                 *BootPartition = atoi(p);
  62                 p = strchr(p, ')');
  63                 if ((p == NULL) || (*BootPartition == 0))
  64                         return FALSE;
  65                 p++;
  66         }
  67         else
  68         {
  69                 return FALSE;
  70         }
  71
  72         strcpy(BootPath, p);
  73
  74         return TRUE;
  75 }