Z:gnu-www-ja-sco-without-fear--50e0db-In Las Vegas Mr.=26nbsp;McBride/en

In Las Vegas Mr. McBride offered two examples of code from the Linux program that were supposedly copied from Sys V. The first implements the &ldquo;Berkeley Packet Filter&rdquo; (BPF) firewall. Indeed, the Linux kernel program contains a BPF implementation, but it is the original work of Linux developer Jay Schulist. Nor did SCO ever hold an ownership interest in the original BPF implementation, which as the very name shows was originally part of BSD Unix, and which was copied, perfectly legally, into SCO's Sys V Unix from BSD. Because the BPF implementations in Sys V and Linux have a common intellectual ancestor and perform the same function, SCO's &ldquo;pattern-matching&rdquo; search of the two code bases turned up an apparent example of copying. But SCO didn't do enough research to realize that the work they were claiming was infringed wasn't their own (probably because they had &ldquo;carelessly&rdquo; removed the original copyright notice).