[NetworkManager-openconnect/master: 1/3] Don't wait for closed STDIN in wait_for_quit

[David Woodhouse <dwmw2 src gnome org>]

commit 91b56c6ed93794b8331c1fc5aa8248b92bfd7de8
Author: Stefan Bühler <stefan buehler tik uni-stuttgart de>
Date:   Fri Feb 18 13:37:38 2022 +0100

    Don't wait for closed STDIN in wait_for_quit
    
    nm_vpn_service_plugin_read_vpn_details in recent NetworkManager versions
    clears stdin due to buffering; waiting for QUIT in the stream doesn't
    work anymore.
    
    EOF should be safe to accept as "QUIT" signal though.

 auth-dialog/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/auth-dialog/main.c b/auth-dialog/main.c
index e0d8544..0d8ceee 100644
--- a/auth-dialog/main.c
+++ b/auth-dialog/main.c
@@ -1744,7 +1744,9 @@ static void wait_for_quit (void)
        do {
                errno = 0;
                n = read (0, &c, 1);
-               if (n == 0 || (n < 0 && errno == EAGAIN))
+               if (n == 0)
+                       break;
+               if (n < 0 && errno == EAGAIN)
                        g_usleep (G_USEC_PER_SEC / 10);
                else if (n == 1) {
                        g_string_append_c (str, c);