volume_id: disable detection routines which are not setting label and uuid anyway

[oweals/busybox.git] / util-linux / volume_id / unused_minix.c

diff --git a/util-linux/volume_id/unused_minix.c b/util-linux/volume_id/unused_minix.c
new file mode 100644 (file)
index 0000000..2f52093
--- /dev/null
+++ b/util-linux/volume_id/unused_minix.c
@@ -0,0 +1,75 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *     This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU Lesser General Public
+ *     License as published by the Free Software Foundation; either
+ *     version 2.1 of the License, or (at your option) any later version.
+ *
+ *     This library 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
+ *     Lesser General Public License for more details.
+ *
+ *     You should have received a copy of the GNU Lesser General Public
+ *     License along with this library; if not, write to the Free Software
+ *     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+struct minix_super_block {
+       uint16_t        s_ninodes;
+       uint16_t        s_nzones;
+       uint16_t        s_imap_blocks;
+       uint16_t        s_zmap_blocks;
+       uint16_t        s_firstdatazone;
+       uint16_t        s_log_zone_size;
+       uint32_t        s_max_size;
+       uint16_t        s_magic;
+       uint16_t        s_state;
+       uint32_t        s_zones;
+} __attribute__((__packed__));
+
+#define MINIX_SUPERBLOCK_OFFSET                        0x400
+
+int volume_id_probe_minix(struct volume_id *id, uint64_t off)
+{
+       struct minix_super_block *ms;
+
+       dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+       ms = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
+       if (ms == NULL)
+               return -1;
+
+       if (ms->s_magic == cpu_to_le16(0x137f)) {
+//             id->type_version[0] = '1';
+               goto found;
+       }
+
+       if (ms->s_magic == cpu_to_le16(0x1387)) {
+//             id->type_version[0] = '1';
+               goto found;
+       }
+
+       if (ms->s_magic == cpu_to_le16(0x2468)) {
+//             id->type_version[0] = '2';
+               goto found;
+       }
+
+       if (ms->s_magic == cpu_to_le16(0x2478)) {
+//             id->type_version[0] = '2';
+               goto found;
+       }
+
+       return -1;
+
+ found:
+//     id->type_version[1] = '\0';
+//     volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+//     id->type = "minix";
+       return 0;
+}