Fixed segfault caused by FD_ISSET() on negative fd

Reported by Kris Siwiec

1 files changed, 1 insertions, 1 deletions

diff --git a/main.c b/main.c
index cda0c4d..4962782 100644
--- a/main.c
+++ b/main.c
@@ -536,7 +536,7 @@ void run(void)
 				xfd = MAX(xfd, info.fd);
 			}
 			select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
-			if (FD_ISSET(info.fd, &fds))
+			if (info.fd != -1 && FD_ISSET(info.fd, &fds))
 				read_info();
 		}