[PATCH] vty: bail out if we cannot enable logging from VTY

[pablo]

From: Pablo Neira Ayuso <pa...@gnumonks.org>

---
 src/vty/logging_vty.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/src/vty/logging_vty.c b/src/vty/logging_vty.c
index b037a5b..b4ab748 100644
--- a/src/vty/logging_vty.c
+++ b/src/vty/logging_vty.c
@@ -78,8 +78,10 @@ DEFUN(enable_logging,
        }
 
        conn->dbg = log_target_create_vty(vty);
-       if (!conn->dbg)
+       if (!conn->dbg) {
+               vty_out(vty, "Cannot enable logging to this VTY.%s", 
VTY_NEWLINE);
                return CMD_WARNING;
+       }
 
        log_add_target(conn->dbg);
        return CMD_SUCCESS;
-- 
1.7.2.5