1 files changed, 15 insertions, 1 deletions
diff --git a/lib/blkdev.c b/lib/blkdev.c
index 67c4a1ac..5514f867 100644
--- a/lib/blkdev.c
+++ b/lib/blkdev.c
@@ -13,6 +13,10 @@
 #include <sys/disklabel.h>
 #endif
 
+#ifdef HAVE_SYS_DKIO_H
+#include <sys/dkio.h>
+#endif
+
 #ifdef HAVE_SYS_DISK_H
 #ifdef HAVE_SYS_QUEUE_H
 #include <sys/queue.h> /* for LIST_HEAD */
@@ -148,7 +152,17 @@ blkdev_get_size(int fd, unsigned long long *bytes)
 		}
 	}
 #endif /* HAVE_SYS_DISKLABEL_H */
-
+#ifdef DKIOCG_PHYGEOM
+    /* sunos (illumos/solaris) */
+    {
+        struct dk_geom geom;
+        if (ioctl(fd, DKIOCG_PHYGEOM, &geom) >= 0) {
+            *bytes = geom.dkg_ncyl * geom.dkg_nhead * geom.dkg_nsect;
+            *bytes <<= 9; /* x 512 */
+            return 0;
+        }
+    }
+#endif /* DKIOCG_PHYGEOM  */
 	{
 		struct stat st;