diff options
Diffstat (limited to 'qemu/roms/openbios/fs/hfs/medium.c')
-rw-r--r-- | qemu/roms/openbios/fs/hfs/medium.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/qemu/roms/openbios/fs/hfs/medium.c b/qemu/roms/openbios/fs/hfs/medium.c new file mode 100644 index 000000000..171ba80dc --- /dev/null +++ b/qemu/roms/openbios/fs/hfs/medium.c @@ -0,0 +1,84 @@ +/* + * libhfs - library for reading and writing Macintosh HFS volumes + * Copyright (C) 1996-1998 Robert Leslie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + * MA 02110-1301, USA. + * + * $Id: medium.c,v 1.4 1998/11/02 22:09:04 rob Exp $ + */ + +#include "config.h" +#include "libhfs.h" +#include "block.h" +#include "low.h" +#include "medium.h" + + +/* + * NAME: medium->findpmentry() + * DESCRIPTION: locate a partition map entry + */ +int m_findpmentry(hfsvol *vol, const char *type, + Partition *map, unsigned long *start) +{ + unsigned long bnum; + int found = 0; + + if (start && *start > 0) + { + bnum = *start; + + if (bnum++ >= (unsigned long) map->pmMapBlkCnt) + ERROR(EINVAL, "partition not found"); + } + else + bnum = 1; + + while (1) + { + if (l_getpmentry(vol, map, bnum) == -1) + { + found = -1; + goto fail; + } + + if (map->pmSig != HFS_PM_SIGWORD) + { + found = -1; + + if (map->pmSig == HFS_PM_SIGWORD_OLD) + ERROR(EINVAL, "old partition map format not supported"); + else + ERROR(EINVAL, "invalid partition map"); + } + + if (strcmp((char *) map->pmParType, type) == 0) + { + found = 1; + goto done; + } + + if (bnum++ >= (unsigned long) map->pmMapBlkCnt) + ERROR(EINVAL, "partition not found"); + } + +done: + if (start) + *start = bnum; + +fail: + return found; +} |