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/*
* beos.c
* Detection of BeOS file systems
*
* Copyright (c) 2003 Christoph Pfisterer
* Based on a contribution by Shadowcaster
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "global.h"
/*
* BeOS BFS (BeFS) file system
*/
void detect_bfs(SECTION *section, int level)
{
unsigned char *buf;
char s[256];
int off, en;
u4 blocksize;
u8 blockcount;
for (off = 0; off <= 512; off += 512) {
if (get_buffer(section, off, 512, (void **)&buf) < 512)
continue;
for (en = 0; en < 2; en++) {
if (get_ve_long(en, buf + 32) == 0x42465331 && /* magic 1 */
get_ve_long(en, buf + 36) == 0x42494745 && /* endianness */
get_ve_long(en, buf + 68) == 0xdd121031 && /* magic 2 */
get_ve_long(en, buf + 112) == 0x15b6830e) { /* magic 3 */
print_line(level, "BeOS BFS (BeFS) file system, %s placement, %s",
(off == 0) ? "Apple" : "Intel",
get_ve_name(en));
/* get label */
get_string(buf, 32, s);
if (s[0])
print_line(level + 1, "Volume name \"%s\"", s);
/* get size */
blocksize = get_ve_long(en, buf + 40);
blockcount = get_ve_quad(en, buf + 48);
/* possible further consistency checks:
blocksize must be in ( 512, 1024, 2048, 4096 )
long @ 44 is shift number for the block size, i.e.
blocksize == 1 << get_ve_long(en, buf + 44)
*/
format_blocky_size(s, blockcount, blocksize, "blocks", NULL);
print_line(level + 1, "Volume size %s", s);
return;
}
}
}
}
/* EOF */
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