collectd: Abort if any non-options are left over after command-line parsing.

This happens if any arguments not starting with a dash are passed to collectd.
Any of those are invalid, so let the user know about that.

Thanks to Kris (gruntruk) for (unknowingly) pointing that out ;-)

diff --git a/src/collectd.c b/src/collectd.c
index a3f63b4..e8aaed2 100644 (file)
--- a/src/collectd.c
+++ b/src/collectd.c
@@ -443,6 +443,9 @@ int main (int argc, char **argv)
                } /* switch (c) */
        } /* while (1) */
 
+       if (optind < argc)
+               exit_usage ();
+
        /*
         * Read options from the config file, the environment and the command
         * line (in that order, with later options overwriting previous ones in