Tripcode decoder?

is there anyway to convert a tripcode into the password for that tripcode, im using tripsage and I see that you can put in a word you want to see in a trip code and it produces results of passwords that would produce a tripcode with those letters in it, so if we were to take a complete tripcode someone has and enter it into that field, in theory it should eventually produce the 1 password that produces that tripcode, however i have a core 2 duo e6600 which can run 170,000 crypts per second but with over 10^80 possible combinations(numbers + letters + capital letters + symbols, and 10 characters in a tripcode) it would take litteraly much more than trillions of years to run through every combination. Any other suggestions?

http://hunter.apana.org.au/~cjb/Code/4brute.c

Somebody tell me why this fucking thing keeps giving me the error
4.brute.c:64: error: parse error before '(' token
4.brute.c:64: error: parse error before "const"

The offending line is of course

extern char *our_fcrypt(const char *buf,const char *salt, char *ret);

I've been fucking around with it for a while to no avail.  Can't figure out what's so evil about that line... it seems to be having a problem with the our_fcrypt part specifically... but I know it's nothing to do with the macro because it keeps acting up even when I use des_fcrypt directly.