Anthony Valentine wrote:
  

I get a seg fault when I try that command.  Output is below (tabs added 
for readability).

sbsdp|amanda: /home/amanda > (echo 'OPTIONS features=fffffeff9ffe7f;' ; 
echo 'GNUTAR / 0') |  /usr/local/libexec/selfcheck
    Segmentation fault
    

Then we need to know where it crashes.  Try this:
First make a little text file containing these three lines:

$ cat sendcheck-input
OPTIONS ;
GNUTAR /gemini/disk4/sort 0 OPTIONS |;bsd-auth;compress-fast;index;
GNUTAR /gemini/disk3/age 0 OPTIONS |;bsd-auth;index;
$


Then execute selfcheck under the debugger:

$ gdb /usr/local/libexec/selfcheck
...blabla...
(gdb)


And start the program handing the little file above on stdin.
When it crashes, execute the 'where' command and send that output.


(gdb)  run < sendcheck-input
...
Program received signal SIGSEGV, Segmentation fault.
...
(gdb)  where
...