util-linux/volume_id/cramfs.c

/*
 * volume_id - reads filesystem label and uuid
 *
 * Copyright (C) 2004 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 cramfs_super {
	uint32_t	magic;
	uint32_t	size;
	uint32_t	flags;
	uint32_t	future;
	uint8_t		signature[16];
	struct cramfs_info {
		uint32_t	crc;
		uint32_t	edition;
		uint32_t	blocks;
		uint32_t	files;
	} PACKED info;
	uint8_t		name[16];
} PACKED;

int FAST_FUNC volume_id_probe_cramfs(struct volume_id *id /*,uint64_t off*/)
{
#define off ((uint64_t)0)
	struct cramfs_super *cs;

	dbg("probing at offset 0x%llx", (unsigned long long) off);

	cs = volume_id_get_buffer(id, off, 0x200);
	if (cs == NULL)
		return -1;

	if (cs->magic == cpu_to_be32(0x453dcd28)) {
//		volume_id_set_label_raw(id, cs->name, 16);
		volume_id_set_label_string(id, cs->name, 16);

//		volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
//		id->type = "cramfs";
		return 0;
	}

	return -1;
}
1	niro	816	/*
2			* volume_id - reads filesystem label and uuid
3			*
4			* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
5			*
6			* This library is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* This library is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with this library; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#include "volume_id_internal.h"
22
23			struct cramfs_super {
24			uint32_t magic;
25			uint32_t size;
26			uint32_t flags;
27			uint32_t future;
28			uint8_t signature[16];
29			struct cramfs_info {
30			uint32_t crc;
31			uint32_t edition;
32			uint32_t blocks;
33			uint32_t files;
34	niro	984	} PACKED info;
35	niro	816	uint8_t name[16];
36	niro	984	} PACKED;
37	niro	816
38	niro	984	int FAST_FUNC volume_id_probe_cramfs(struct volume_id id /,uint64_t off*/)
39	niro	816	{
40	niro	984	#define off ((uint64_t)0)
41	niro	816	struct cramfs_super *cs;
42
43			dbg("probing at offset 0x%llx", (unsigned long long) off);
44
45			cs = volume_id_get_buffer(id, off, 0x200);
46			if (cs == NULL)
47			return -1;
48
49			if (cs->magic == cpu_to_be32(0x453dcd28)) {
50			// volume_id_set_label_raw(id, cs->name, 16);
51			volume_id_set_label_string(id, cs->name, 16);
52
53			// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
54			// id->type = "cramfs";
55			return 0;
56			}
57
58			return -1;
59			}