openssh unix dev - Jun 2001 - quicky about return code of scp?

A quick grovel through scp.c shows me that main() ends with this :

        }
        exit(errs != 0);
}


Am I correct in assuming that this means that if there's no problems (ie:
the
scp executes completely, with no errors) that scp's return code is 0?

I need to know if a copy has been successful in a perl script, and the
easiest way to check is to look at the code.

The return code isn't documented in the man page for scp.1

thanks

Carl