In TTEST2(), check to make sure the "l" argument isn't so large that "snapend - l" underflows; this fixes a buffer overflow with malformed NFS packets, and may fix other buffer overflows with malformed packets.
In TTEST2(), check to make sure the "l" argument isn't so large that
"snapend - l" underflows; this fixes a buffer overflow with malformed
NFS packets, and may fix other buffer overflows with malformed packets.

Obtained from:	tcpdump.org CVS

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase