add jffs2_mark_erase function for erasing jffs2 partitions on the next mount (typical...

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

diff --git a/package/base-files/files/etc/functions.sh b/package/base-files/files/etc/functions.sh
index 4d84bb8..86ea82d 100755 (executable)
--- a/package/base-files/files/etc/functions.sh
+++ b/package/base-files/files/etc/functions.sh
@@ -36,7 +36,7 @@ config () {
        export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
        name="${name:-cfg$CONFIG_NUM_SECTIONS}"
        append CONFIG_SECTIONS "$name"
-       config_cb "$cfgtype" "$name"
+       [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
        export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
        export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
 }
@@ -46,7 +46,7 @@ option () {
        local value="$*"
        
        export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
-       option_cb "$varname" "$*"
+       [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
 }
 
 config_rename() {
@@ -120,7 +120,11 @@ config_set() {
        local section="$1"
        local option="$2"
        local value="$3"
-       export ${NO_EXPORT:+-n} "CONFIG_${section}_${option}=$value"
+       local old_section="$CONFIG_SECTION"
+
+       CONFIG_SECTION="$section"
+       option "$option" "$value"
+       CONFIG_SECTION="$old_section"
 }
 
 config_foreach() {
@@ -182,3 +186,13 @@ strtok() { # <string> { <variable> [<separator>] ... }
 
        return $count
 }
+
+
+jffs2_mark_erase() {
+       local part="$(find_mtd_part "$1")"
+       [ -z "$part" ] && {
+               echo Partition not found.
+               return 1
+       }
+       echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1"
+}