From e09cbf079135fc8dbf825dd3f53fbfa0ab80dde2 Mon Sep 17 00:00:00 2001
From: krw <krw@openbsd.org>
Date: Wed, 14 Oct 2015 00:19:04 +0000
Subject: [PATCH] Backout last. Breaks sparc64, amoung other dubiousness.

requested by deraadt@
---
 usr.sbin/installboot/installboot.c | 19 ++-----------------
 usr.sbin/installboot/installboot.h |  4 +---
 usr.sbin/installboot/util.c        | 19 ++++---------------
 3 files changed, 7 insertions(+), 35 deletions(-)

diff --git a/usr.sbin/installboot/installboot.c b/usr.sbin/installboot/installboot.c
index f414af56aba..50d027355c1 100644
--- a/usr.sbin/installboot/installboot.c
+++ b/usr.sbin/installboot/installboot.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: installboot.c,v 1.8 2015/10/12 20:52:20 krw Exp $	*/
+/*	$OpenBSD: installboot.c,v 1.9 2015/10/14 00:19:04 krw Exp $	*/
 
 /*
  * Copyright (c) 2012, 2013 Joel Sing <jsing@openbsd.org>
@@ -16,9 +16,6 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <sys/types.h>
-#include <sys/disklabel.h>
-#include <sys/stat.h>
 #include <err.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ -32,8 +29,6 @@
 int	nowrite;
 int	stages;
 int	verbose;
-int	dstblkunit;
-int	dstblkmajor;
 
 char	*root = "/";
 char	*stage1;
@@ -53,8 +48,7 @@ usage(void)
 int
 main(int argc, char **argv)
 {
-	struct stat sb;
-	char *dev, *realdev, *blkdev;
+	char *dev, *realdev;
 	int devfd, opt;
 
 	md_init();
@@ -107,15 +101,6 @@ main(int argc, char **argv)
 	    &realdev)) < 0)
 		err(1, "open: %s", realdev);
 
-	if (realdev == NULL || strncmp(realdev, "/dev/r", 6))
-		errx(1, "realdev");
-	if (asprintf(&blkdev, "/dev/%s", realdev+6) == -1)
-		err(1, "asprintf");
-	if (stat(blkdev, &sb) == -1)
-		err(1, "fstat");
-	dstblkunit = DISKUNIT(sb.st_rdev);
-	dstblkmajor = major(sb.st_rdev);
-
         if (verbose) {
 		fprintf(stderr, "%s bootstrap on %s\n",
 		    (nowrite ? "would install" : "installing"), realdev);
diff --git a/usr.sbin/installboot/installboot.h b/usr.sbin/installboot/installboot.h
index 5c9ad69c326..2e56488558e 100644
--- a/usr.sbin/installboot/installboot.h
+++ b/usr.sbin/installboot/installboot.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: installboot.h,v 1.6 2015/10/12 20:52:20 krw Exp $	*/
+/*	$OpenBSD: installboot.h,v 1.7 2015/10/14 00:19:04 krw Exp $	*/
 /*
  * Copyright (c) 2012, 2013 Joel Sing <jsing@openbsd.org>
  *
@@ -18,8 +18,6 @@
 extern int nowrite;
 extern int stages;
 extern int verbose;
-extern int dstblkunit;
-extern int dstblkmajor;
 
 extern char *root;
 extern char *stage1;
diff --git a/usr.sbin/installboot/util.c b/usr.sbin/installboot/util.c
index 38206b83133..3b5843c6310 100644
--- a/usr.sbin/installboot/util.c
+++ b/usr.sbin/installboot/util.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: util.c,v 1.8 2015/10/12 20:52:20 krw Exp $	*/
+/*	$OpenBSD: util.c,v 1.9 2015/10/14 00:19:05 krw Exp $	*/
 
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
@@ -16,8 +16,6 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <sys/types.h>
-#include <sys/disklabel.h>
 #include <sys/stat.h>
 #include <err.h>
 #include <errno.h>
@@ -38,7 +36,7 @@ int
 filecopy(const char *srcfile, const char *dstfile)
 {
 	struct stat sb;
-	ssize_t srcsz, sz, n;
+	ssize_t sz, n;
 	int sfd, dfd, rslt = -1;
 	char *buf;
 
@@ -56,22 +54,13 @@ filecopy(const char *srcfile, const char *dstfile)
 		warn("fstat");
 		return (-1);
 	}
-	srcsz = sz = sb.st_size;
+	sz = sb.st_size;
 
 	dfd = open(dstfile, O_WRONLY|O_CREAT);
 	if (dfd == -1) {
 		warn("open %s", dstfile);
 		return (-1);
 	}
-	if (fstat(dfd, &sb) == -1) {
-		warn("fstat");
-		return (-1);
-	}
-	if (major(sb.st_dev) != dstblkmajor || DISKUNIT(sb.st_dev) !=
-	    dstblkunit) {
-		warnx("cross-device install");
-		return (-1);
-	}
 	if (fchown(dfd, 0, 0) == -1)
 		if (errno != EINVAL) {
 			warn("chown");
@@ -95,7 +84,7 @@ filecopy(const char *srcfile, const char *dstfile)
 		}
 	}
 
-	ftruncate(dfd, srcsz);
+	ftruncate(dfd, sb.st_size);
 
 	close(dfd);
 	close(sfd);
-- 
2.20.1