[PATCH 04/14] libmultipath: condlog: log to stderr

From: Martin Wilck <mwilck@suse.com>
To: Christophe Varoqui <christophe.varoqui@opensvc.com>, dm-devel@redhat.com
Cc: Martin Wilck <mwilck@suse.com>
Subject: [PATCH 04/14] libmultipath: condlog: log to stderr
Date: Fri, 12 Jan 2018 23:07:33 +0100	[thread overview]
Message-ID: <20180112220743.11513-5-mwilck@suse.com> (raw)
In-Reply-To: <20180112220743.11513-1-mwilck@suse.com>

Calling 'multipath' might result in various error messages, all
of which should be directed to stderr.
Having them intermixed with the actual output on stdout makes
parsing really hard.

Signed-off-by: Martin Wilck <mwilck@suse.com>
---
 libmultipath/debug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libmultipath/debug.c b/libmultipath/debug.c
index f89b26443ea5..f95a3e5f97f5 100644
--- a/libmultipath/debug.c
+++ b/libmultipath/debug.c
@@ -37,9 +37,9 @@ void dlog (int sink, int prio, const char * fmt, ...)
 					 "%b %d %H:%M:%S", tb);
 				buff[sizeof(buff)-1] = '\0';
 
-				fprintf(stdout, "%s | ", buff);
+				fprintf(stderr, "%s | ", buff);
 			}
-			vfprintf(stdout, fmt, ap);
+			vfprintf(stderr, fmt, ap);
 		}
 		else
 			log_safe(prio + 3, fmt, ap);
-- 
2.15.1
