CVS: rdesktop iso.c,1.19,1.20

Update of /cvsroot/rdesktop/rdesktop
In directory sc8-pr-cvs9.sourceforge.net:/tmp/cvs-serv27171

Modified Files:
	iso.c 
Log Message:
Extra sanity checking.


Index: iso.c
===================================================================
RCS file: /cvsroot/rdesktop/rdesktop/iso.c,v
retrieving revision 1.19
retrieving revision 1.20
diff -C2 -d -r1.19 -r1.20
*** iso.c	8 Jan 2007 04:47:05 -0000	1.19
--- iso.c	14 Feb 2008 11:45:13 -0000	1.20
***************
*** 99,102 ****
--- 99,107 ----
  		}
  	}
+ 	if (length < 4)
+ 	{
+ 		error("Bad packet header\n");
+ 		return NULL;
+ 	}
  	s = tcp_recv(s, length - 4);
  	if (s == NULL)


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