From 6d8ce170b0be743f761244f467cdaa5f4318638d Mon Sep 17 00:00:00 2001
From: Rob Landley
Date: Wed, 7 Jun 2006 21:22:42 +0000
Subject: Fix from Tito to read from stdin only when it's not a tty.

---
 miscutils/hdparm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'miscutils')

diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c
index 5703ece..512995a 100644
--- a/miscutils/hdparm.c
+++ b/miscutils/hdparm.c
@@ -2185,11 +2185,11 @@ int hdparm_main(int argc, char **argv)
 	argc -= optind;
 	argv += optind;
 
-#if ENABLE_FEATURE_HDPARM_GET_IDENTITY
 	if (argc < 1) {
-		identify_from_stdin(); /* EXIT */
+		if (ENABLE_FEATURE_HDPARM_GET_IDENTITY && !isatty(STDIN_FILENO))
+			identify_from_stdin(); /* EXIT */
+		else bb_show_usage();
 	}
-#endif
 
 	while (argc--) {
 		process_dev(*argv);
-- 
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