lib, vtysh: Return actual problem further up

When we encounter a problem loading a config file
quantify to the end user what has gone wrong,
with a combination of err output as well as
return codes.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Don Slice <dslice@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Dave Olson <olson@cumulusnetworks.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/bgpd/bgp_btoa.c b/bgpd/bgp_btoa.c
index b9ff67c547..a6c16d8c2d 100644
--- a/bgpd/bgp_btoa.c
+++ b/bgpd/bgp_btoa.c
@@ -160,7 +160,8 @@ main (int argc, char **argv)
   fp = fopen (argv[1], "r");
   if (!fp)
     {
-      perror ("fopen");
+      fprintf (stdout,"%% Can't open configuration file %s due to '%s'.\n",
+              argv[1], safe_strerror(errno));
       exit (1);
     }