When piping into a file, don't buffer.

Turn off buffering when piping the output into a file to stop ppl sending
me empty logs.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/evtest.c b/evtest.c
index a68b900..8671c07 100644
--- a/evtest.c
+++ b/evtest.c
@@ -637,6 +637,9 @@ int main (int argc, char **argv)
 
 	free(filename);
 
+	if (!isatty(fileno(stdout)))
+		setbuf(stdout, NULL);
+
 	if (print_device_info(fd))
 		return 1;
 
@@ -653,6 +656,5 @@ int main (int argc, char **argv)
 		printf("***********************************************\n");
 	}
 
-
 	return print_events(fd);
 }