Output

Olsrd can be set to direct various degrees of output describing current operation and status to the standard output(STDOUT). There are 9 debug levels that can be used where 1 yields a minimal output while 9 will output lots of information. Olsrd also logs start, stop and errors to the system log using the glibc syslog(3) interface. If olsrd is set to run at debug-level 0, it will detach itself from the parent process and run in the background as most daemons do, syslogging will still be done. The debug level is set either at the command line using the -d switch, or in the configuration file.

The interface for STDOUT output from olsrd is the function:

int
olsr_printf(int, char *, ...);

This function is basically just a wrapper for the printf(2) standard library call. But the function takes a debug-level integer as the first parameter. This value indicates what minimum debug-level is required for the output to be displayed.