treewide: drop shebang from non-executable lib files

[openwrt/openwrt.git] / package / base-files / files / lib / preinit / 80_mount_root

diff --git a/package/base-files/files/lib/preinit/80_mount_root b/package/base-files/files/lib/preinit/80_mount_root
index ad24fb8ace70707e434c9980d948399834ce160f..3f75411a4391c221d0fa00c7f1c0ef566642d14e 100644 (file)
--- a/package/base-files/files/lib/preinit/80_mount_root
+++ b/package/base-files/files/lib/preinit/80_mount_root
@@ -1,10 +1,34 @@
-#!/bin/sh
 # Copyright (C) 2006 OpenWrt.org
 # Copyright (C) 2010 Vertical Communications
 
-do_mount_root() {
-    boot_run_hook preinit_mount_root
+missing_lines() {
+       local file1 file2 line
+       file1="$1"
+       file2="$2"
+       oIFS="$IFS"
+       IFS=":"
+       while read line; do
+               set -- $line
+               grep -q "^$1:" "$file2" || echo "$*"
+       done < "$file1"
+       IFS="$oIFS"
 }
 
-boot_hook_add preinit_main do_mount_root
+do_mount_root() {
+       mount_root
+       boot_run_hook preinit_mount_root
+       [ -f /sysupgrade.tgz ] && {
+               echo "- config restore -"
+               cp /etc/passwd /etc/group /etc/shadow /tmp
+               cd /
+               tar xzf /sysupgrade.tgz
+               missing_lines /tmp/passwd /etc/passwd >> /etc/passwd
+               missing_lines /tmp/group /etc/group >> /etc/group
+               missing_lines /tmp/shadow /etc/shadow >> /etc/shadow
+               rm /tmp/passwd /tmp/group /tmp/shadow
+               # Prevent configuration corruption on a power loss
+               sync
+       }
+}
 
+[ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main do_mount_root