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-rw-r--r--libblkid/samples/partitions.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/libblkid/samples/partitions.c b/libblkid/samples/partitions.c
new file mode 100644
index 0000000..c5830e6
--- /dev/null
+++ b/libblkid/samples/partitions.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <blkid.h>
+#include "c.h"
+
+int main(int argc, char *argv[])
+{
+ int i, nparts;
+ char *devname;
+ blkid_probe pr;
+ blkid_partlist ls;
+ blkid_parttable root_tab;
+
+ if (argc < 2) {
+ fprintf(stderr, "usage: %s <device|file> "
+ "-- prints partitions\n",
+ program_invocation_short_name);
+ return EXIT_FAILURE;
+ }
+
+ devname = argv[1];
+ pr = blkid_new_probe_from_filename(devname);
+ if (!pr)
+ err(EXIT_FAILURE, "%s: failed to create a new libblkid probe",
+ devname);
+ /* Binary interface */
+ ls = blkid_probe_get_partitions(pr);
+ if (!ls)
+ errx(EXIT_FAILURE, "%s: failed to read partitions\n", devname);
+
+ /*
+ * Print info about the primary (root) partition table
+ */
+ root_tab = blkid_partlist_get_table(ls);
+ if (!root_tab)
+ errx(EXIT_FAILURE, "%s: does not contains any "
+ "known partition table\n", devname);
+
+ printf("size: %jd, sector size: %u, PT: %s, offset: %jd, id=%s\n---\n",
+ (intmax_t)blkid_probe_get_size(pr),
+ blkid_probe_get_sectorsize(pr),
+ blkid_parttable_get_type(root_tab),
+ (intmax_t)blkid_parttable_get_offset(root_tab),
+ blkid_parttable_get_id(root_tab));
+
+ /*
+ * List partitions
+ */
+ nparts = blkid_partlist_numof_partitions(ls);
+ if (!nparts)
+ goto done;
+
+ for (i = 0; i < nparts; i++) {
+ const char *p;
+ blkid_partition par = blkid_partlist_get_partition(ls, i);
+ blkid_parttable tab = blkid_partition_get_table(par);
+
+ printf("#%d: %10llu %10llu 0x%x",
+ blkid_partition_get_partno(par),
+ (unsigned long long) blkid_partition_get_start(par),
+ (unsigned long long) blkid_partition_get_size(par),
+ blkid_partition_get_type(par));
+
+ if (root_tab != tab)
+ /* subpartition (BSD, Minix, ...) */
+ printf(" (%s)", blkid_parttable_get_type(tab));
+
+ p = blkid_partition_get_name(par);
+ if (p)
+ printf(" name='%s'", p);
+ p = blkid_partition_get_uuid(par);
+ if (p)
+ printf(" uuid='%s'", p);
+ p = blkid_partition_get_type_string(par);
+ if (p)
+ printf(" type='%s'", p);
+
+ putc('\n', stdout);
+ }
+
+done:
+ blkid_free_probe(pr);
+ return EXIT_SUCCESS;
+}