From 90c53876130396227564f0f478570153ed89470c Mon Sep 17 00:00:00 2001
From: Frank Rolsted Jensen <frj@thrane.eu>
Date: Wed, 27 Oct 2021 15:44:09 +0200
Subject: [PATCH] Clear pollin flag when input buffer is flushed

The pollin flag must be cleared when the input buffer (pty slave) is
flushed. This ensures that the POLLIN event is not signaled to the application,
when there is not data to read.
---
 src/ttynvt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ttynvt.c b/src/ttynvt.c
index ef940a3..6d15cb1 100644
--- a/src/ttynvt.c
+++ b/src/ttynvt.c
@@ -926,6 +926,7 @@ ttynvt_ioctl(fuse_req_t req, int cmd, void *arg,
         case TCIFLUSH:
             byte = 1;
             tty->slave_suspended = 0;   /* Re-enable polling of Slave */
+            tty->pollin = 0;
             break;
         case TCOFLUSH:
             byte = 2;
@@ -935,6 +936,7 @@ ttynvt_ioctl(fuse_req_t req, int cmd, void *arg,
             byte = 3;
             tty->slave_suspended = 0;   /* Re-enable polling of Slave */
             tty->pollout = 1;
+            tty->pollin = 0;
             break;
         }
         telnet_rfc2217_cfg(tty->tn, TNS_SET_PURGE, &byte, 1);