From 609d42e2bca742613ccdccbd2152e835cd8a19ee Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 2 Aug 2022 17:21:28 +0530
Subject: [PATCH] Ignore EAGAIN when doing tty io

---
 prewarm-launcher.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/prewarm-launcher.c b/prewarm-launcher.c
index 6391927ca..4056f653c 100644
--- a/prewarm-launcher.c
+++ b/prewarm-launcher.c
@@ -484,6 +484,7 @@ read_from_tty(int *fd, transfer_buf *t) {
         ssize_t n = safe_read(*fd, t->buf + t->sz, IO_BUZ_SZ - t->sz);
         if (n < 0) {
             if (errno == EPIPE || errno == EIO) { *fd = -1; return true; }
+            if (errno == EAGAIN) return true;
             return false;
         }
         if (n == 0) *fd = -1; // hangup