Process ifconfig output

shyfi.go

@@ -0,0 +1,56 @@
+// +build ignore
+
+package main
+
+import (
+    "strings"
+    "fmt"
+    "bytes"
+    "os/exec"
+)
+
+type Network struct {
+    ssid, bssid string
+}
+
+func listScan(iface string) []Network {
+    cmd := exec.Command("ifconfig", "-v", iface, "list", "scan")
+    cmdOutput := &bytes.Buffer{}
+    cmd.Stdout = cmdOutput
+    err := cmd.Run()
+    if err != nil {
+        return nil
+    }
+    output := string(cmdOutput.Bytes())
+    lines := strings.Split(output, "\n")
+    if len(lines) < 1 {
+        return nil
+    }
+    header := lines[0]
+    lines = lines[1:]
+    ssidEnd := strings.Index(header, "BSSID") - 1
+    if ssidEnd < 0 {
+        return nil
+    }
+
+    result := []Network{}
+    for _, line := range lines {
+        if len(line) < ssidEnd + 1 {
+            continue
+        }
+        ssid := line[:ssidEnd]
+        ssid = strings.Trim(ssid, " ")
+        bssid := line[ssidEnd + 1:ssidEnd + 18]
+        network := Network {ssid: ssid, bssid: bssid}
+        result = append(result, network)
+    }
+    return result
+}
+
+func main() {
+    networks := listScan("wlan0")
+    fmt.Printf("Total networks: %d\n", len(networks))
+    for _, net := range networks {
+        fmt.Printf("===> [%s] %s\n", net.bssid, net.ssid)
+    }
+}