1  /*
       2   * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
       3   *
       4   * This file may be redistributed under the terms of the
       5   * GNU Lesser General Public License.
       6   */
       7  
       8  #include <stdio.h>
       9  #include <stdlib.h>
      10  #include <sys/types.h>
      11  #include <sys/stat.h>
      12  #include <fcntl.h>
      13  #include <errno.h>
      14  
      15  #include <blkid.h>
      16  #include "c.h"
      17  
      18  int main(int argc, char *argv[])
      19  {
      20  	int i, nparts;
      21  	char *devname;
      22  	blkid_probe pr;
      23  	blkid_partlist ls;
      24  	blkid_parttable root_tab;
      25  
      26  	if (argc < 2) {
      27  		fprintf(stderr, "usage: %s <device|file>  "
      28  				"-- prints partitions\n",
      29  				program_invocation_short_name);
      30  		return EXIT_FAILURE;
      31  	}
      32  
      33  	devname = argv[1];
      34  	pr = blkid_new_probe_from_filename(devname);
      35  	if (!pr)
      36  		err(EXIT_FAILURE, "%s: failed to create a new libblkid probe",
      37  				devname);
      38  	/* Binary interface */
      39  	ls = blkid_probe_get_partitions(pr);
      40  	if (!ls)
      41  		errx(EXIT_FAILURE, "%s: failed to read partitions\n", devname);
      42  
      43  	/*
      44  	 * Print info about the primary (root) partition table
      45  	 */
      46  	root_tab = blkid_partlist_get_table(ls);
      47  	if (!root_tab)
      48  		errx(EXIT_FAILURE, "%s: does not contains any "
      49  				 "known partition table\n", devname);
      50  
      51  	printf("size: %jd, sector size: %u, PT: %s, offset: %jd, id=%s\n---\n",
      52  		(intmax_t)blkid_probe_get_size(pr),
      53  		blkid_probe_get_sectorsize(pr),
      54  		blkid_parttable_get_type(root_tab),
      55  		(intmax_t)blkid_parttable_get_offset(root_tab),
      56  		blkid_parttable_get_id(root_tab));
      57  
      58  	/*
      59  	 * List partitions
      60  	 */
      61  	nparts = blkid_partlist_numof_partitions(ls);
      62  	if (!nparts)
      63  		goto done;
      64  
      65  	for (i = 0; i < nparts; i++) {
      66  		const char *p;
      67  		blkid_partition par = blkid_partlist_get_partition(ls, i);
      68  		blkid_parttable tab = blkid_partition_get_table(par);
      69  
      70  		printf("#%d: %10llu %10llu  0x%x",
      71  			blkid_partition_get_partno(par),
      72  			(unsigned long long) blkid_partition_get_start(par),
      73  			(unsigned long long) blkid_partition_get_size(par),
      74  			blkid_partition_get_type(par));
      75  
      76  		if (root_tab != tab)
      77  			/* subpartition (BSD, Minix, ...) */
      78  			printf(" (%s)", blkid_parttable_get_type(tab));
      79  
      80  		p = blkid_partition_get_name(par);
      81  		if (p)
      82  			printf(" name='%s'", p);
      83  		p = blkid_partition_get_uuid(par);
      84  		if (p)
      85  			printf(" uuid='%s'", p);
      86  		p = blkid_partition_get_type_string(par);
      87  		if (p)
      88  			printf(" type='%s'", p);
      89  
      90  		putc('\n', stdout);
      91  	}
      92  
      93  done:
      94  	blkid_free_probe(pr);
      95  	return EXIT_SUCCESS;
      96  }