From 353684f5dda63559ed938e36dfc0252e26590daa Mon Sep 17 00:00:00 2001
From: Justin Stephenson <jstephen@redhat.com>
Date: Mon, 2 Nov 2020 15:42:55 -0500
Subject: [PATCH] Skip utmp removal with piped IO on stdin

---
 lib/tlog/tap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/tlog/tap.c b/lib/tlog/tap.c
index 81389be5..68de3a43 100644
--- a/lib/tlog/tap.c
+++ b/lib/tlog/tap.c
@@ -337,7 +337,7 @@ tlog_tap_teardown(struct tlog_errs **perrs,
     tlog_source_destroy(tap->source);
     tap->source = NULL;
 
-    if (tap->in_fd >= 0) {
+    if ((tap->in_fd >= 0) && (isatty(tap->in_fd))) {
 #ifdef HAVE_UTEMPTER
 	if (utempter_remove_record(tap->in_fd) == 0) {
 	    grc = TLOG_GRC_ERRNO;