--- src/sbin/hammer/hammer.c	2008/02/08 08:30:56	1.8
+++ src/sbin/hammer/hammer.c	2008/02/23 20:55:21	1.9
@@ -136,6 +136,11 @@ main(int ac, char **av)
 		hammer_cmd_show(node_offset, 0, NULL, NULL);
 		exit(0);
 	}
+	if (strcmp(av[0], "blockmap") == 0) {
+		hammer_parsedevs(blkdevs);
+		hammer_cmd_blockmap();
+		exit(0);
+	}
 	usage(1);
 	/* not reached */
 	return(0);
@@ -241,6 +246,7 @@ usage(int exit_code)
 		"hammer prune <filesystem> from <modulo_time> to <modulo_time> every <modulo_time>\n"
 		"hammer history[@offset[,len]] <file-1>...<file-N>\n"
 		"hammer -f blkdevs [-r] show [vol_no[:clu_no]]\n"
+		"hammer -f blkdevs blockmap\n"
 	);
 	fprintf(stderr, "time: +n[s/m/h/D/M/Y]\n"
 			"time: yyyymmdd[:hhmmss]\n"