Merge pull request #1 from ffbsee/feature_wifiscan

new script: wifiscan

ffbsee-wifiscan/Makefile

@@ -0,0 +1,17 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ffbsee-wifiscan
+PKG_VERSION:=0.1
+PKG_RELEASE:=1
+
+PKG_MAINTAINER:=Wolf <[email protected]>
+PKG_LICENSE:=MIT
+
+include $(TOPDIR)/../package/gluon.mk
+
+define Package/ffbsee-wifiscan
+  TITLE:=The wifiscan-scripts generate a wifiscan-result-json-string
+  DEPENDS:=+iw
+endef
+
+$(eval $(call BuildPackageGluon,ffbsee-wifiscan))

ffbsee-wifiscan/files/sbin/wifilist.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+function wifilist()
+{
+    iw dev | grep "Interface" | grep -v "mesh" | sed 's/.*Interface\|//' | while read device
+    do
+        iw dev $device scan lowpri | awk -f wlan_scan.awk
+    done
+}
+result="["$(wifilist|sed '$s/,$//')"]"
+echo $result

ffbsee-wifiscan/files/sbin/wlan_scan.awk

@@ -0,0 +1,13 @@
+/^BSS/ {
+    mac = gensub ( /^BSS[[:space:]]*([0-9a-fA-F:]+).*?$/, "\\1", "g", $0 );
+}
+/^[[:space:]]*signal:/ {
+    signal = gensub ( /^[[:space:]]*signal:[[:space:]]*(\-?[0-9.]+).*?$/, "\\1", "g", $0 );
+}
+/^[[:space:]]*\* primary channel:/ {
+    channel = gensub (/^[[:space:]]*\* primary channel:[[:space:]]*(\-?[0-9.]+).*?$/, "\\1", "g", $0);
+}
+/^[[:space:]]*SSID:/ {
+    ssid = gensub ( /^[[:space:]]*SSID:[[:space:]]*([^\n]*).*?$/, "\\1", "g", $0 );
+    printf ( "{\"ssid\": \"%s\", \"mac\": \"%s\", \"signal\": %s, \"channel\": \"%s\"},\n", ssid, mac, signal, channel);
+}