diff options
Diffstat (limited to 'libblkid/minix1.c')
-rw-r--r-- | libblkid/minix1.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/libblkid/minix1.c b/libblkid/minix1.c deleted file mode 100644 index 54e71396b..000000000 --- a/libblkid/minix1.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Copyright (C) 1999 by Andries Brouwer - * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o - * Copyright (C) 2001 by Andreas Dilger - * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org> - * Copyright (C) 2008 Karel Zak <kzak@redhat.com> - * - * This file may be redistributed under the terms of the - * GNU Lesser General Public License. - */ - -#include <string.h> -#include "superblocks.h" -#include "minix.h" - -static int probe_minix(blkid_probe pr, const struct blkid_idmag *mag) -{ - unsigned char *ext; - int version; - - /* for more details see magic strings below */ - switch(mag->magic[1]) { - case '\023': - version = 1; - break; - case '\044': - version = 2; - break; - case '\115': - version = 3; - break; - default: - return -1; - break; - } - - if (version <= 2) { - struct minix_super_block *sb; - uint32_t zones; - - sb = blkid_probe_get_sb(pr, mag, struct minix_super_block); - if (!sb || sb->s_imap_blocks == 0 || sb->s_zmap_blocks == 0) - return -1; - - zones = version == 2 ? sb->s_zones : sb->s_nzones; - - /* sanity checks to be sure that the FS is really minix */ - if (sb->s_imap_blocks * MINIX_BLOCK_SIZE * 8 < sb->s_ninodes + 1) - return -1; - if (sb->s_zmap_blocks * MINIX_BLOCK_SIZE * 8 < zones - sb->s_firstdatazone + 1) - return -1; - - } else if (version == 3) { - struct minix3_super_block *sb; - - sb = blkid_probe_get_sb(pr, mag, struct minix3_super_block); - if (!sb || sb->s_imap_blocks == 0 || sb->s_zmap_blocks == 0) - return -1; - - } - - /* unfortunately, some parts of ext3 is sometimes possible to - * interpreted as minix superblock. So check for extN magic - * string. (For extN magic string and offsets see ext.c.) - */ - ext = blkid_probe_get_buffer(pr, 0x400 + 0x38, 2); - if (ext && memcmp(ext, "\123\357", 2) == 0) - return -1; - - blkid_probe_sprintf_version(pr, "%d", version); - return 0; -} - -const struct blkid_idinfo minix_idinfo = -{ - .name = "minix", - .usage = BLKID_USAGE_FILESYSTEM, - .probefunc = probe_minix, - .magics = - { - /* version 1 */ - { .magic = "\177\023", .len = 2, .kboff = 1, .sboff = 0x10 }, - { .magic = "\217\023", .len = 2, .kboff = 1, .sboff = 0x10 }, - - /* version 2 */ - { .magic = "\150\044", .len = 2, .kboff = 1, .sboff = 0x10 }, - { .magic = "\170\044", .len = 2, .kboff = 1, .sboff = 0x10 }, - - /* version 3 */ - { .magic = "\132\115", .len = 2, .kboff = 1, .sboff = 0x18 }, - { NULL } - } -}; - |