From: Rafał Miłecki <zajec5@gmail.com>
Date: Wed, 23 Sep 2015 11:55:18 +0000 (+0000)
Subject: base-files: sysupgrade: quote source image name
X-Git-Url: http://git.archive.openwrt.org/?a=commitdiff_plain;h=1898cdc737c0f4e46820c6816f8af9d6578aebf4;p=15.05%2Fopenwrt.git

base-files: sysupgrade: quote source image name

get_image() eval a filename without quoting it, resulting in errors with
filenames containing characters that need to be escaped.
    $ sysupgrade -T -f ./cfg\(12\).tar.gz img.bin; echo $?
    Image check 'platform_check_image' failed.
    Invalid config file. Please use only .tar.gz files
    1
    $ mv cfg\(12\).tar.gz cfg_12.tar.gz
    $ mv img\(1\).bin img.bin
    sysupgrade -T -f ./cfg_12.tar.gz img.bin; echo $?
    0

Enclose the content of $from in double quotes.

Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me>

Backport of r46919

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@47028 3c298f89-4303-0410-b956-a3cf2f4a3e73
---

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index 189ef69e95..761b4c1795 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -184,14 +184,14 @@ get_image() { # <source> [ <command> ]
 		*) cmd="cat";;
 	esac
 	if [ -z "$conc" ]; then
-		local magic="$(eval $cmd $from 2>/dev/null | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
+		local magic="$(eval $cmd \"$from\" 2>/dev/null | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
 		case "$magic" in
 			1f8b) conc="zcat";;
 			425a) conc="bzcat";;
 		esac
 	fi
 
-	eval "$cmd $from 2>/dev/null ${conc:+| $conc}"
+	eval "$cmd \"$from\" 2>/dev/null ${conc:+| $conc}"
 }
 
 get_magic_word() {