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authorJames Rayner <james@archlinux.org>2009-09-07 13:48:31 +0200
committerJames Rayner <james@archlinux.org>2009-09-07 13:48:31 +0200
commit24d48b93ab76e255145edf097ebcb84ba70d5cb1 (patch)
tree296489485c5d6d81e9fbe8718ed5e022c3496e0c /src
parentd8b7ce436980612713dcd4add2e9c9d5189f70d0 (diff)
downloadnetctl-24d48b93ab76e255145edf097ebcb84ba70d5cb1.tar.gz
netctl-24d48b93ab76e255145edf097ebcb84ba70d5cb1.tar.xz
Generalise wpa_supplicant scan information
Diffstat (limited to 'src')
-rw-r--r--src/wireless58
1 files changed, 51 insertions, 7 deletions
diff --git a/src/wireless b/src/wireless
index e778627..f63f7e1 100644
--- a/src/wireless
+++ b/src/wireless
@@ -35,7 +35,7 @@ find_essid() {
# if results were non-null, process them and exit 0
echo "$res" | sed -nr 's/^\s+ESSID:"([^"]*)"$/\1/p' | fgrep -xm1 "$ESSID"
)
- fi && {
+ fi && {
scanned=1
report_debug find_essid "\"$found\""
# we only bother with at most 5 successful scans
@@ -86,10 +86,10 @@ find_ap() {
# list_networks interface
list_networks()
{
- local INTERFACE="$1" essids try=0 RETRIES=20 res scanned
- # temp file used, as keeping ESSID's with spaces in their name in arrays
+ local INTERFACE="$1" essids
+ # temp file used, as keeping ESSID's with spaces in their name in arrays
# is hard, obscure and kinda nasty. This is simpler and clearer.
-
+
[[ -z "$INTERFACE" ]] && return 1
essids=$(mktemp --tmpdir essid.XXXXXXXX)
@@ -103,7 +103,7 @@ list_networks()
sort -rn -k3 |
sort -u -k5 |
sort -rn -k3 |
- cut -f1,5 > "$essids"
+ cut -f1,5 > "$essids"
# Fields are tab delimited
# Remove extraneous output from wpa_cli
@@ -111,9 +111,9 @@ list_networks()
# Remove duplicates
# Re-sort by strength as the removal disorders the list
# Cut to the AP/essid fields only
-
+
kill $(cat /var/run/wpa_supplicant.pid)
-
+
# File of 0 length, ie. no ssid's.
if [[ ! -s "$essids" ]]; then
rm -f "$essids"
@@ -123,4 +123,48 @@ list_networks()
echo $essids
return 0
}
+
+list_networks() {
+ wpa_supplicant_scan_info $1 1,5
+}
+
+wpa_supplicant_scan_info() {
+ local INTERFACE="$1" fields="$2" essids
+ # temp file used, as keeping ESSID's with spaces in their name in arrays
+ # is hard, obscure and kinda nasty. This is simpler and clearer.
+
+ [[ -z "$INTERFACE" ]] && return 1
+ essids=$(mktemp --tmpdir essid.XXXXXXXX)
+
+ wpa_supplicant -B -i$INTERFACE -Dwext -C/var/run/wpa_supplicant -P/var/run/wpa_supplicant.pid
+ wpa_cli -i "$INTERFACE" scan &> /dev/null
+ sleep 2.5
+ wpa_cli -i "$INTERFACE" scan_results |
+ grep -v "^Selected" |
+ grep -v "^bssid" |
+ sort -rn -k3 |
+ sort -u -k5 |
+ sort -rn -k3 |
+ cut -f$fields > "$essids"
+
+ # Fields are tab delimited
+ # Remove extraneous output from wpa_cli
+ # Sort by strength
+ # Remove duplicates
+ # Re-sort by strength as the removal disorders the list
+ # Cut to the AP/essid fields only
+
+ kill $(cat /var/run/wpa_supplicant.pid)
+
+ # File of 0 length, ie. no ssid's.
+ if [[ ! -s "$essids" ]]; then
+ rm -f "$essids"
+ return 1
+ fi
+
+ echo $essids
+ return 0
+}
+
# vim: set ts=4 et sw=4 ft=sh:
+