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-rw-r--r--libblkid/src/partitions/sgi.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/libblkid/src/partitions/sgi.c b/libblkid/src/partitions/sgi.c
new file mode 100644
index 0000000..99c0bf1
--- /dev/null
+++ b/libblkid/src/partitions/sgi.c
@@ -0,0 +1,87 @@
+/*
+ * sgi partition parsing code
+ *
+ * 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 <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "partitions.h"
+#include "pt-sgi.h"
+
+static int probe_sgi_pt(blkid_probe pr,
+ const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+ struct sgi_disklabel *l;
+ struct sgi_partition *p;
+ blkid_parttable tab = NULL;
+ blkid_partlist ls;
+ int i;
+
+ l = (struct sgi_disklabel *) blkid_probe_get_sector(pr, 0);
+ if (!l) {
+ if (errno)
+ return -errno;
+ goto nothing;
+ }
+
+ if (sgi_pt_checksum(l)) {
+ DBG(LOWPROBE, ul_debug(
+ "detected corrupted sgi disk label -- ignore"));
+ goto nothing;
+ }
+
+ if (blkid_partitions_need_typeonly(pr))
+ /* caller does not ask for details about partitions */
+ return BLKID_PROBE_OK;
+
+ ls = blkid_probe_get_partlist(pr);
+ if (!ls)
+ goto nothing;
+
+ tab = blkid_partlist_new_parttable(ls, "sgi", 0);
+ if (!tab)
+ goto err;
+
+ for(i = 0, p = &l->partitions[0]; i < SGI_MAXPARTITIONS; i++, p++) {
+ uint32_t size = be32_to_cpu(p->num_blocks);
+ uint32_t start = be32_to_cpu(p->first_block);
+ uint32_t type = be32_to_cpu(p->type);
+ blkid_partition par;
+
+ if (!size) {
+ blkid_partlist_increment_partno(ls);
+ continue;
+ }
+ par = blkid_partlist_add_partition(ls, tab, start, size);
+ if (!par)
+ goto err;
+
+ blkid_partition_set_type(par, type);
+ }
+
+ return BLKID_PROBE_OK;
+
+nothing:
+ return BLKID_PROBE_NONE;
+err:
+ return -ENOMEM;
+}
+
+const struct blkid_idinfo sgi_pt_idinfo =
+{
+ .name = "sgi",
+ .probefunc = probe_sgi_pt,
+ .magics =
+ {
+ { .magic = "\x0B\xE5\xA9\x41", .len = 4 },
+ { NULL }
+ }
+};
+