From 04eff1778f4e78a3385d13feb883eeee29dfc392 Mon Sep 17 00:00:00 2001
From: Oliver Jowett <oliver@mutability.co.uk>
Date: Thu, 22 Jan 2015 10:59:11 +0000
Subject: [PATCH] Use the right field for CF in DF 18

---
 mode_s.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mode_s.c b/mode_s.c
index 3f2b9e6..87f02f3 100644
--- a/mode_s.c
+++ b/mode_s.c
@@ -1073,9 +1073,9 @@ void displayModesMessage(struct modesMessage *mm) {
         displayExtendedSquitter(mm);
     } else if (mm->msgtype == 18) { // DF 18 
         printf("DF 18: Extended Squitter.\n");
-        printf("  Control Field : %d (%s)\n", mm->ca, cf_str[mm->ca]);
-        if ((mm->ca == 0) || (mm->ca == 1) || (mm->ca == 5) || (mm->ca == 6)) {
-            if (mm->ca == 1 || mm->ca == 5) {
+        printf("  Control Field : %d (%s)\n", mm->cf, cf_str[mm->cf]);
+        if ((mm->cf == 0) || (mm->cf == 1) || (mm->cf == 5) || (mm->cf == 6)) {
+            if (mm->cf == 1 || mm->cf == 5) {
                 printf("  Other Address : %06x\n", mm->addr);
             } else {
                 printf("  ICAO Address  : %06x\n", mm->addr);