sanity-check -p arg.

1 files changed, 1 insertions, 0 deletions

diff --git a/marsond.c b/marsond.c
index 318c9be..c2b0aa0 100644
--- a/marsond.c
+++ b/marsond.c
@@ -123,6 +123,7 @@ void parse_args(int argc, char **argv) {
 	}
 
 	if(delay_ms < 1) die("invalid -d argument");
+	if(pause_ms < 0) die("invalid -p argument");
 }
 
 /* cleanup() gets called by die() and sighandler() */