From 365c992f80420944993784fdece5d55a7603360c Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 7 Jun 2018 15:48:50 +0530
Subject: [PATCH] Fix only one the two fds created by self_pipe having CLOEXEC
 and NONBLOCK set

---
 kitty/child-monitor.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/kitty/child-monitor.c b/kitty/child-monitor.c
index 57797bdb4..de027f5a2 100644
--- a/kitty/child-monitor.c
+++ b/kitty/child-monitor.c
@@ -114,12 +114,14 @@ self_pipe(int fds[2]) {
     int flags;
     flags = pipe(fds);
     if (flags != 0) return false;
-    flags = fcntl(fds[0], F_GETFD);
-    if (flags == -1) {  return false; }
-    if (fcntl(fds[0], F_SETFD, flags | FD_CLOEXEC) == -1) { return false; }
-    flags = fcntl(fds[0], F_GETFL);
-    if (flags == -1) { return false; }
-    if (fcntl(fds[0], F_SETFL, flags | O_NONBLOCK) == -1) { return false; }
+    for (int i = 0; i < 2; i++) {
+        flags = fcntl(fds[i], F_GETFD);
+        if (flags == -1) {  return false; }
+        if (fcntl(fds[i], F_SETFD, flags | FD_CLOEXEC) == -1) { return false; }
+        flags = fcntl(fds[i], F_GETFL);
+        if (flags == -1) { return false; }
+        if (fcntl(fds[i], F_SETFL, flags | O_NONBLOCK) == -1) { return false; }
+    }
     return true;
 }