Return to medium.c CVS log

Up to [Qemu by Fabrice Bellard] / qemu / roms / openbios / fs / hfs

Annotation of qemu/roms/openbios/fs/hfs/medium.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * libhfs - library for reading and writing Macintosh HFS volumes
                      3:  * Copyright (C) 1996-1998 Robert Leslie
                      4:  *
                      5:  * This program is free software; you can redistribute it and/or modify
                      6:  * it under the terms of the GNU General Public License as published by
                      7:  * the Free Software Foundation; either version 2 of the License, or
                      8:  * (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,
                     18:  * MA 02110-1301, USA.
                     19:  *
                     20:  * $Id: medium.c,v 1.4 1998/11/02 22:09:04 rob Exp $
                     21:  */
                     22: 
                     23: #include "config.h"
                     24: #include "libhfs.h"
                     25: #include "block.h"
                     26: #include "low.h"
                     27: #include "medium.h"
                     28: 
                     29: 
                     30: /*
                     31:  * NAME:       medium->findpmentry()
                     32:  * DESCRIPTION:        locate a partition map entry
                     33:  */
                     34: int m_findpmentry(hfsvol *vol, const char *type,
                     35:                  Partition *map, unsigned long *start)
                     36: {
                     37:   unsigned long bnum;
                     38:   int found = 0;
                     39: 
                     40:   if (start && *start > 0)
                     41:     {
                     42:       bnum = *start;
                     43: 
                     44:       if (bnum++ >= (unsigned long) map->pmMapBlkCnt)
                     45:        ERROR(EINVAL, "partition not found");
                     46:     }
                     47:   else
                     48:     bnum = 1;
                     49: 
                     50:   while (1)
                     51:     {
                     52:       if (l_getpmentry(vol, map, bnum) == -1)
                     53:        {
                     54:          found = -1;
                     55:          goto fail;
                     56:        }
                     57: 
                     58:       if (map->pmSig != HFS_PM_SIGWORD)
                     59:        {
                     60:          found = -1;
                     61: 
                     62:          if (map->pmSig == HFS_PM_SIGWORD_OLD)
                     63:            ERROR(EINVAL, "old partition map format not supported");
                     64:          else
                     65:            ERROR(EINVAL, "invalid partition map");
                     66:        }
                     67: 
                     68:       if (strcmp((char *) map->pmParType, type) == 0)
                     69:        {
                     70:          found = 1;
                     71:          goto done;
                     72:        }
                     73: 
                     74:       if (bnum++ >= (unsigned long) map->pmMapBlkCnt)
                     75:        ERROR(EINVAL, "partition not found");
                     76:     }
                     77: 
                     78: done:
                     79:   if (start)
                     80:     *start = bnum;
                     81: 
                     82: fail:
                     83:   return found;
                     84: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.