base-files: allow users to delect debug level during boot

[openwrt.git] / package / base-files / files / lib / functions.sh

diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh
index 85ebc2a..6f23e0b 100755 (executable)
--- a/package/base-files/files/lib/functions.sh
+++ b/package/base-files/files/lib/functions.sh
@@ -260,6 +260,26 @@ mtd_get_mac_ascii()
        [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty"
 }
 
        [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty"
 }
 

+mtd_get_blob()
+{
+       local mtdname="$1"
+       local offset="$2"
+       local count="$3"
+       local firmware="$4"
+       local part
+
+       part=$(find_mtd_part "$mtdname")
+       if [ -z "$part" ]; then
+               echo "mtd_get_blob: partition $mtdname not found!" >&2
+               return 1
+       fi
+
+       dd if=$part of=$firmware bs=1 skip=$offset count=$count 2>/dev/null || {
+               echo "mtd_get_blob: failed to extract $firmware from $part" >&2
+               return 1
+       }
+}
+

 mtd_get_mac_binary() {
        local mtdname="$1"
        local offset="$2"
 mtd_get_mac_binary() {
        local mtdname="$1"
        local offset="$2"