X-Git-Url: http://git.ozo.com/?p=openwrt-10.03%2F.git;a=blobdiff_plain;f=package%2Fbase-files%2Ffiles%2Flib%2Fupgrade%2Fcommon.sh;fp=package%2Fbase-files%2Ffiles%2Flib%2Fupgrade%2Fcommon.sh;h=06c257b639ffd381db22ae5deecba2408c694fda;hp=2c392496a0981763ebfa31dadbef00dbd3ff16d4;hb=75b6ff70318b01f5a7ef2d4d3959ec5f25dc6b03;hpb=e2e0b921de20d12a3e331a2f067455f2a6489153

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index 2c392496a..06c257b63 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -105,26 +105,26 @@ rootfs_type() {
 
 get_image() { # <source> [ <command> ]
 	local from="$1"
-	local cmd="$2"
-	local conc
-
-	if [ -z "$cmd" ]; then
-		case "$from" in
-			http://*|ftp://*) cmd="wget -O- -q";;
-			*) cmd="cat";;
-		esac
+	local conc="$2"
+	local cmd
+
+	case "$from" in
+		http://*|ftp://*) cmd="wget -O- -q";;
+		*) cmd="cat";;
+	esac
+	if [ -z "$conc" ]; then
 		local magic="$(eval $cmd $from | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
 		case "$magic" in
-			1f8b) conc="| zcat";;
-			425a) conc="| bzcat";;
+			1f8b) conc="zcat";;
+			425a) conc="bzcat";;
 		esac
 	fi
 
-	eval "$cmd $from $conc"
+	eval "$cmd $from ${conc:+| $conc}"
 }
 
 get_magic_word() {
-	get_image "$1" | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"'
+	get_image "$@" | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"'
 }
 
 refresh_mtd_partitions() {