less: fix newly-introduced case of less spinning forever

 on pty's closed etc

1 files changed, 10 insertions, 6 deletions

diff --git a/miscutils/less.c b/miscutils/less.c
index b5d225a12..6c793ad8b 100644
--- a/miscutils/less.c
+++ b/miscutils/less.c
@@ -853,12 +853,16 @@ static ssize_t getch_nowait(void)
         /* We have kbd_fd in O_NONBLOCK mode, read inside read_key()
          * would not block even if there is no input available */
         rd = read_key(kbd_fd, NULL, input);
-        if (rd == -1 && errno == EAGAIN) {
-                /* No keyboard input available. Since poll() did return,
-                 * we should have input on stdin */
-                read_lines();
-                buffer_fill_and_print();
-                goto again;
+        if (rd == -1) {
+                if (errno == EAGAIN) {
+                        /* No keyboard input available. Since poll() did return,
+                         * we should have input on stdin */
+                        read_lines();
+                        buffer_fill_and_print();
+                        goto again;
+                }
+                /* EOF/error (ssh session got killed etc) */
+                less_exit(0);
         }
         set_tty_cooked();
         return rd;