From b0bb63bf79debf3eb48fd4b21e65a2e9685f82fd Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Wed, 25 Jul 2007 15:17:06 +0000
Subject: [PATCH] Nick "Lethe" WARNE: prevent crash caused by improper use of
 --multiplay

mf: stripped down the log message a bit :-)
---
 src/Main/fg_io.cxx | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Main/fg_io.cxx b/src/Main/fg_io.cxx
index 134087885..82bcfeb35 100644
--- a/src/Main/fg_io.cxx
+++ b/src/Main/fg_io.cxx
@@ -187,8 +187,12 @@ FGIO::parse_port_config( const string& config )
             else if (tokens[1] == "file") n--;
             FGGeneric *generic = new FGGeneric( tokens[n] );
             io = generic;
-	} else if ( protocol == "multiplay" ) {\
-	    //Determine dir, rate, host & port
+	} else if ( protocol == "multiplay" ) {
+	    if ( tokens.size() != 5 ) {
+		SG_LOG( SG_IO, SG_ALERT, "Ignoring invalid --multiplay option "
+			"(4 arguments expected: --multiplay=dir,hz,hostname,port)" );
+		return NULL;
+	    }
 	    string dir = tokens[1];
 	    string rate = tokens[2];
 	    string host = tokens[3];
-- 
2.39.5