From 21804157ff0e60508fd128310505381f7b3ec2b0 Mon Sep 17 00:00:00 2001

From: Lennart Poettering <lennart@poettering.net>

Date: Wed, 18 Dec 2013 16:49:15 +0100

Subject: [PATCH] log: when we log to /dev/console and got disconnected (maybe

 due to vhangup) reconnect

---

 src/shared/log.c | 21 +++++++++++++++++++--

 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/shared/log.c b/src/shared/log.c

index bd918fb..de770ca 100644

--- a/src/shared/log.c

+++ b/src/shared/log.c

@@ -335,8 +335,25 @@ static int write_to_console(

                 IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_OFF);

         IOVEC_SET_STRING(iovec[n++], "\n");

-        if (writev(console_fd, iovec, n) < 0)

-                return -errno;

+        if (writev(console_fd, iovec, n) < 0) {

+

+                if (errno == EIO && getpid() == 1) {

+

+                        /* If somebody tried to kick us from our

+                         * console tty (via vhangup() or suchlike),

+                         * try to reconnect */

+

+                        log_close_console();

+                        log_open_console();

+

+                        if (console_fd < 0)

+                                return 0;

+

+                        if (writev(console_fd, iovec, n) < 0)

+                                return -errno;

+                } else

+                        return -errno;

+        }

         return 1;

 }