[Commit-gnuradio] r4737 - gnuradio/trunk/gnuradio-core/src/lib/general

[jcorgan]

Author: jcorgan
Date: 2007-03-11 10:32:34 -0600 (Sun, 11 Mar 2007)
New Revision: 4737

Modified:
   gnuradio/trunk/gnuradio-core/src/lib/general/gr_framer_sink_1.cc
Log:
Fixed state machine hangup with invalid payload_len field.

Modified: gnuradio/trunk/gnuradio-core/src/lib/general/gr_framer_sink_1.cc
===================================================================
--- gnuradio/trunk/gnuradio-core/src/lib/general/gr_framer_sink_1.cc    
2007-03-09 02:27:22 UTC (rev 4736)
+++ gnuradio/trunk/gnuradio-core/src/lib/general/gr_framer_sink_1.cc    
2007-03-11 16:32:34 UTC (rev 4737)
@@ -57,6 +57,11 @@
   if (VERBOSE)
     fprintf(stderr, "@ enter_have_header (payload_len = %d) (offset = %d)\n", 
payload_len, whitener_offset);
 
+  if (payload_len < 4) {       // should be at least the length of the CRC 
field
+    enter_search();
+    return;
+  }
+
   d_state = STATE_HAVE_HEADER;
   d_packetlen = payload_len;
   d_packet_whitener_offset = whitener_offset;