Hi all, I'm writing a small module just for fun. I would like to have two variables:
- "pid" of type unsigned int and RW so the user can set a pid - "process_name" as a string RD that will display the process name associated to that pid (or a message if the pid doesn't exist anymore) My problem is with the handler functions. For "process_name", as it is read only, I wrote a simple handler that works fine. However, I want to write another one for "pid" so I can sanitize the input (avoiding pids < 0 and so). As I understand, the handler I specify with SYSCTL_OID will be called for both reads and writes. But, how can I tell what kind of operation is it, so I know if I have to use SYSCTL_OUT or SYSCTL_IN? I tried to have a look at sysctl_handle_int but I don't fully understand what is going on with the arg1 parameter. What is it for? Thanks in advance. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"