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/*
* cloop.c
* Layered data source for Linux cloop images.
*
* Copyright (c) 2005 Christoph Pfisterer
*
* 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"
/*
* image file detection
*/
void detect_cloop(SECTION *section, int level)
{
unsigned char *buf;
u4 blocksize, blockcount;
char s[256];
const char *sig_20 = "#!/bin/sh\n#V2.0 Format\nmodprobe cloop";
/* check for signature */
if (get_buffer(section, 0, 256, (void **)&buf) < 256)
return;
if (memcmp(buf, sig_20, strlen(sig_20)) != 0)
return;
print_line(level, "Linux cloop 2.0 image");
blocksize = get_be_long(buf + 128);
blockcount = get_be_long(buf + 132);
format_blocky_size(s, blockcount, blocksize, "blocks", NULL);
print_line(level + 1, "Volume size %s", s);
}
/* EOF */
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