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/*
* gpt.c:
*
* Copyright (c) 2007 James McKenzie <james@fishsoup.dhs.org>,
* All rights reserved.
*
*/
static char rcsid[] = "$Id: gpt.c,v 1.22 2012/03/11 11:31:24 james Exp $";
/*
* $Log: gpt.c,v $
* Revision 1.22 2012/03/11 11:31:24 james
* *** empty log message ***
*
* Revision 1.21 2012/03/11 11:30:50 james
* *** empty log message ***
*
* Revision 1.20 2012/03/11 11:15:50 james
* *** empty log message ***
*
* Revision 1.19 2012/03/11 10:54:21 james
* *** empty log message ***
*
* Revision 1.18 2012/03/11 10:52:06 james
* *** empty log message ***
*
* Revision 1.17 2011/08/07 11:33:43 james
* add support for repairing half a table
*
* Revision 1.16 2009/05/06 01:35:00 james
* *** empty log message ***
*
* Revision 1.15 2009/05/06 01:12:55 james
* *** empty log message ***
*
* Revision 1.14 2008/01/25 03:01:06 james
* *** empty log message ***
*
* Revision 1.13 2007/11/13 15:18:30 james
* *** empty log message ***
*
* Revision 1.12 2007/11/12 13:28:04 james
* *** empty log message ***
*
* Revision 1.11 2007/10/17 09:51:42 james
* *** empty log message ***
*
* Revision 1.10 2007/10/16 10:37:15 james
* *** empty log message ***
*
* Revision 1.9 2007/10/16 10:36:11 james
* *** empty log message ***
*
* Revision 1.8 2007/10/16 10:20:57 james
* *** empty log message ***
*
* Revision 1.7 2007/10/16 10:07:49 james
* *** empty log message ***
*
* Revision 1.6 2007/09/10 11:23:08 root
* *** empty log message ***
*
* Revision 1.4 2007/09/09 22:30:05 root
* *** empty log message ***
*
* Revision 1.3 2007/09/09 22:29:50 root
* *** empty log message ***
*
* Revision 1.2 2007/09/08 18:21:23 root
* *** empty log message ***
*
* Revision 1.1 2007/09/08 16:49:37 root
* *** empty log message ***
*
*/
#include "project.h"
void
usage (void)
{
fprintf (stderr, "gpt %s\n", get_version ());
fprintf (stderr,
"Usage:\n"
"gpt -h show help\n"
"gpt -d disk-device -l list partitions\n"
"gpt -d disk-device -s print the address of frist usable sector\n"
" on the disk\n"
" the last usable sector on the disk\n"
#if 0
"gpt -d disk-device -e print the address of the sector after the\n"
" the last addressable sector on the disk\n"
#endif
"gpt -d disk-device -e print the address of the last sector\n"
" usable as a partition\n"
"gpt -d disk-device -f n print the lba of the last sector in\n"
" parition n\n"
"gpt -d disk-device -g n print the partition type of partition n\n"
"gpt -d disk-device -n write a new blank parition table to the disk\n"
" the end of parition n\n"
"gpt -d disk-device -a n name type start end [partition-guid]\n"
" set partiton n, type can either be a named\n"
" type or a hexadecimal GUID\n"
"gpt -d disk-device -c fill the PMBR with entries taken from\n"
" the first few GPT entries, using dark\n"
" voodoo\n");
exit (1);
}
int
main (int argc, char *argv[])
{
DISK *d = NULL;
GPT_headers h;
GPT_entry e;
int c;
int n;
int aflag = 0;
uint64_t start_lba, end_lba;
extern char *optarg;
extern int optind;
uint32_t crc;
fprintf (stderr, "sizeof(off_t)=%d\n", sizeof (off_t));
while ((c = getopt (argc, argv, "Cqd:hlsef:g:unac")) != EOF)
{
switch (c)
{
case 'C':
n = 0;
if (d)
{
h = headers_get (d);
n = header_check_crc (d, &h.header);
if (n)
n = header_check_crc (d, &h.header);
}
printf("%d\n",n);
return n ? 0 : -1;
case 'd':
d = disk_open (optarg);
if (!d)
{
fprintf (stderr, "failed to open disk %s\n", optarg);
perror ("open");
return -1;
}
break;
case 'e':
if (!d)
usage ();
h = headers_get (d);
printf ("%lld\n", (long long) h.header.last_usable_lba);
return 0;
case 's':
if (!d)
usage ();
h = headers_get (d);
printf ("%lld\n", (long long) h.header.first_usable_lba);
return 0;
case 'u':
if (!d)
usage ();
h = headers_get (d);
printf ("%lld\n", (long long) h.header.last_usable_lba);
return 0;
case 'f':
h = headers_get (d);
n = atoi (optarg);
e = entry_read (d, &h.header, n);
printf ("%lld\n", e.end);
return 0;
case 'g':
h = headers_get (d);
n = atoi (optarg);
e = entry_read (d, &h.header, n);
printf ("%s\n", guid_to_a (e.type));
return 0;
case 'q':
if (!d)
usage ();
fixup (d);
disk_reread_kernel_table (d);
return 0;
case 'n':
if (!d)
usage ();
new (d);
disk_reread_kernel_table (d);
return 0;
case 'a':
aflag++;
break;
case 'l':
if (!d)
usage ();
show (d);
return 0;
case 'c':
if (!d)
usage ();
sync_tables (d);
show (d);
disk_reread_kernel_table (d);
return 0;
default:
usage ();
}
}
if (!aflag)
usage ();
if (!d)
usage ();
if (((argc - optind) != 5) && ((argc - optind) != 6))
usage ();
start_lba = strtoll (argv[optind + 3], NULL, 0);
end_lba = strtoll (argv[optind + 4], NULL, 0);
//printf("%lld %lld\n",(long long)start_lba,(long long) end_lba);
n = atoi (argv[optind]);
modify (d, n, argv[optind + 1], argv[optind + 2], start_lba, end_lba,
((argc - optind) == 6) ? argv[optind + 5] : NULL);
show (d);
disk_reread_kernel_table (d);
return 0;
}
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