87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
/*
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* Copyright (C) 2009 Karel Zak <kzak@redhat.com>
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*
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* This file may be redistributed under the terms of the
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* GNU Lesser General Public License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <blkid.h>
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#include "c.h"
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int main(int argc, char *argv[])
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{
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int rc;
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char *devname;
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blkid_probe pr;
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blkid_topology tp;
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if (argc < 2) {
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fprintf(stderr, "usage: %s <device> "
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"-- prints topology details about the device\n",
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program_invocation_short_name);
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return EXIT_FAILURE;
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}
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devname = argv[1];
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pr = blkid_new_probe_from_filename(devname);
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if (!pr)
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err(EXIT_FAILURE, "%s: failed to create a new libblkid probe",
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devname);
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/*
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* Binary interface
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*/
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tp = blkid_probe_get_topology(pr);
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if (tp) {
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printf("----- binary interface:\n");
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printf("\talignment offset : %lu\n",
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blkid_topology_get_alignment_offset(tp));
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printf("\tminimum io size : %lu\n",
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blkid_topology_get_minimum_io_size(tp));
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printf("\toptimal io size : %lu\n",
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blkid_topology_get_optimal_io_size(tp));
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printf("\tlogical sector size : %lu\n",
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blkid_topology_get_logical_sector_size(tp));
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printf("\tphysical sector size : %lu\n",
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blkid_topology_get_physical_sector_size(tp));
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}
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/*
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* NAME=value interface
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*/
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/* enable topology probing */
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blkid_probe_enable_topology(pr, TRUE);
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/* disable superblocks probing (enabled by default) */
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blkid_probe_enable_superblocks(pr, FALSE);
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rc = blkid_do_fullprobe(pr);
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if (rc == -1)
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errx(EXIT_FAILURE, "%s: blkid_do_fullprobe() failed", devname);
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else if (rc == 1)
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warnx("%s: missing topology information", devname);
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else {
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int i, nvals = blkid_probe_numof_values(pr);
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printf("----- NAME=value interface (values: %d):\n", nvals);
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for (i = 0; i < nvals; i++) {
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const char *name, *data;
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blkid_probe_get_value(pr, i, &name, &data, NULL);
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printf("\t%s = %s\n", name, data);
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}
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}
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blkid_free_probe(pr);
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return EXIT_SUCCESS;
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}
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