From 9f1695a3b650d0f47875acfc6fa1e396f3880719 Mon Sep 17 00:00:00 2001
From: Kamal Mostafa <kamal@whence.com>
Date: Sun, 9 Sep 2012 17:42:53 -0700
Subject: [PATCH] minimodem: fix --auto-carrier crash on positive-shift modes

---
 src/minimodem.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/minimodem.c b/src/minimodem.c
index 1a4a891..09a02fe 100644
--- a/src/minimodem.c
+++ b/src/minimodem.c
@@ -878,8 +878,9 @@ main( int argc, char*argv[] )
 		b_shift *= -1;
 	    /* only accept a carrier as b_mark if it will not result
 	     * in a b_space band which is "too low". */
-	    if ( carrier_band + b_shift < 1 ) {
-		debug_log("autodetected space band too low\n" );
+	    int b_space = carrier_band + b_shift;
+	    if ( b_space < 1 || b_space >= fskp->nbands ) {
+		debug_log("autodetected space band out of range\n" );
 		carrier_band = -1;
 		continue;
 	    }