Module Name:    src
Committed By:   martin
Date:           Fri Jul 26 08:18:47 UTC 2019

Modified Files:
        src/usr.sbin/sysinst: defs.h disklabel.c gpt.c label.c mbr.c

Log Message:
Strip trailing / from last mounted strings.
No idea how they happen, but for cgd root (init.root = "/altroot")
they have been reported to exist.


To generate a diff of this commit:
cvs rdiff -u -r1.41 -r1.42 src/usr.sbin/sysinst/defs.h
cvs rdiff -u -r1.9 -r1.10 src/usr.sbin/sysinst/disklabel.c \
    src/usr.sbin/sysinst/label.c
cvs rdiff -u -r1.3 -r1.4 src/usr.sbin/sysinst/gpt.c
cvs rdiff -u -r1.18 -r1.19 src/usr.sbin/sysinst/mbr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/usr.sbin/sysinst/defs.h
diff -u src/usr.sbin/sysinst/defs.h:1.41 src/usr.sbin/sysinst/defs.h:1.42
--- src/usr.sbin/sysinst/defs.h:1.41	Tue Jul 23 18:13:40 2019
+++ src/usr.sbin/sysinst/defs.h	Fri Jul 26 08:18:47 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: defs.h,v 1.41 2019/07/23 18:13:40 martin Exp $	*/
+/*	$NetBSD: defs.h,v 1.42 2019/07/26 08:18:47 martin Exp $	*/
 
 /*
  * Copyright 1997 Piermont Information Systems Inc.
@@ -648,6 +648,7 @@ int	fs_is_lfs(void *);
  */
 const char *get_last_mounted(int fd, daddr_t offset, uint *fs_type,
      uint *fs_sub_type, uint flags);
+void	canonicalize_last_mounted(char*);
 int	edit_and_check_label(struct pm_devs *p, struct partition_usage_set *pset);
 int edit_ptn(menudesc *, void *);
 int checkoverlap(struct disk_partitions *parts);

Index: src/usr.sbin/sysinst/disklabel.c
diff -u src/usr.sbin/sysinst/disklabel.c:1.9 src/usr.sbin/sysinst/disklabel.c:1.10
--- src/usr.sbin/sysinst/disklabel.c:1.9	Sun Jul 21 11:56:20 2019
+++ src/usr.sbin/sysinst/disklabel.c	Fri Jul 26 08:18:47 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: disklabel.c,v 1.9 2019/07/21 11:56:20 martin Exp $	*/
+/*	$NetBSD: disklabel.c,v 1.10 2019/07/26 08:18:47 martin Exp $	*/
 
 /*
  * Copyright 2018 The NetBSD Foundation, Inc.
@@ -245,6 +245,8 @@ disklabel_parts_read(const char *disk, d
 				if (parts->l.d_partitions[part].p_fstype ==
 				    fs_type)
 					parts->fs_sub_type[part] = fs_sub_type;
+				canonicalize_last_mounted(
+				    parts->last_mounted[part]);
 			}
 		}
 
Index: src/usr.sbin/sysinst/label.c
diff -u src/usr.sbin/sysinst/label.c:1.9 src/usr.sbin/sysinst/label.c:1.10
--- src/usr.sbin/sysinst/label.c:1.9	Tue Jul  9 16:16:33 2019
+++ src/usr.sbin/sysinst/label.c	Fri Jul 26 08:18:47 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: label.c,v 1.9 2019/07/09 16:16:33 martin Exp $	*/
+/*	$NetBSD: label.c,v 1.10 2019/07/26 08:18:47 martin Exp $	*/
 
 /*
  * Copyright 1997 Jonathan Stone
@@ -36,7 +36,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: label.c,v 1.9 2019/07/09 16:16:33 martin Exp $");
+__RCSID("$NetBSD: label.c,v 1.10 2019/07/26 08:18:47 martin Exp $");
 #endif
 
 #include <sys/types.h>
@@ -1480,6 +1480,24 @@ edit_and_check_label(struct pm_devs *p, 
 }
 
 /*
+ * strip trailing / to avoid confusion in path comparisions later
+ */
+void
+canonicalize_last_mounted(char *path)
+{
+	char *p;
+
+	for (;;) {
+		p = strrchr(path, '/');
+		if (p == NULL)
+			return;
+		if (p[1] != 0)
+			return;
+		p[0] = 0;
+	}
+}
+
+/*
  * Try to get 'last mounted on' (or equiv) from fs superblock.
  */
 const char *

Index: src/usr.sbin/sysinst/gpt.c
diff -u src/usr.sbin/sysinst/gpt.c:1.3 src/usr.sbin/sysinst/gpt.c:1.4
--- src/usr.sbin/sysinst/gpt.c:1.3	Thu Jul 25 13:16:35 2019
+++ src/usr.sbin/sysinst/gpt.c	Fri Jul 26 08:18:47 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: gpt.c,v 1.3 2019/07/25 13:16:35 martin Exp $	*/
+/*	$NetBSD: gpt.c,v 1.4 2019/07/26 08:18:47 martin Exp $	*/
 
 /*
  * Copyright 2018 The NetBSD Foundation, Inc.
@@ -358,7 +358,9 @@ gpt_read_from_disk(const char *dev, dadd
 			const char *lm = get_last_mounted(fd, p->gp_start,
 			    &p->fs_type, &p->fs_sub_type, p->gp_type->fsflags);
 			if (lm != NULL && *lm != 0) {
-				p->last_mounted = strdup(lm);
+				char *path = strdup(lm);
+				canonicalize_last_mounted(path);
+				p->last_mounted = path;
 			} else {
 				p->fs_type = p->gp_type->default_fs_type;
 #ifdef DEFAULT_UFS2

Index: src/usr.sbin/sysinst/mbr.c
diff -u src/usr.sbin/sysinst/mbr.c:1.18 src/usr.sbin/sysinst/mbr.c:1.19
--- src/usr.sbin/sysinst/mbr.c:1.18	Thu Jul 25 18:55:40 2019
+++ src/usr.sbin/sysinst/mbr.c	Fri Jul 26 08:18:47 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: mbr.c,v 1.18 2019/07/25 18:55:40 martin Exp $ */
+/*	$NetBSD: mbr.c,v 1.19 2019/07/26 08:18:47 martin Exp $ */
 
 /*
  * Copyright 1997 Piermont Information Systems Inc.
@@ -547,7 +547,9 @@ read_mbr(const char *disk, mbr_info_t *m
 					    &mbri->fs_type[i],
 					    &mbri->fs_sub_type[i],
 					    flags);
-					mbri->last_mounted[i] = strdup(mount);
+					char *p = strdup(mount);
+					canonicalize_last_mounted(p);
+					mbri->last_mounted[i] = p;
 				}
 			}
 #if BOOTSEL

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