From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Tue, 3 Dec 2013 13:07:32 +0000 (-0500)
Subject: journal: fail silently in sd_j_sendv() if journal is unavailable
X-Git-Tag: v209~1136
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=6c045c0b4c49c88a1d3b9360c05efa5084796d2d

journal: fail silently in sd_j_sendv() if journal is unavailable

"syslog(3) and sd_journal_print() may largely be used interchangeably
functionality-wise" according to sd_journal_print(3). This socket
should be always available except in rare circumstatances, and we
don't random applications to fail on logging, so let's do what syslog
did. The alternative of forcing all callers to do error handling for
this rare case doesn't really have any benefits, since if they can't
log there isn't much they can do anyway.

https://bugzilla.redhat.com/show_bug.cgi?id=1023041
---

diff --git a/src/journal/journal-send.c b/src/journal/journal-send.c
index 931c1e733..281e154d8 100644
--- a/src/journal/journal-send.c
+++ b/src/journal/journal-send.c
@@ -300,6 +300,10 @@ _public_ int sd_journal_sendv(const struct iovec *iov, int n) {
         if (k >= 0)
                 return 0;
 
+        /* Fail silently if the journal is not available */
+        if (errno == ENOENT)
+                return 0;
+
         if (errno != EMSGSIZE && errno != ENOBUFS)
                 return -errno;