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[1/4] alfred: Show error message for invalid batadv interface

Message ID 20210215200126.140253-1-sven@narfation.org
State Accepted, archived
Delegated to: Simon Wunderlich
Headers show
Series [1/4] alfred: Show error message for invalid batadv interface | expand

Commit Message

Sven Eckelmann Feb. 15, 2021, 8:01 p.m. UTC
The alfred server process always stopped without any informational message
when the provided batman-adv was not "none" and was not accessible. This
made it extremely hard to debug the reason why alfred directly stopped
after launching it.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
---
 server.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/server.c b/server.c
index fc27246..efac5ad 100644
--- a/server.c
+++ b/server.c
@@ -385,8 +385,11 @@  int alfred_server(struct globals *globals)
 	}
 
 	if (strcmp(globals->mesh_iface, "none") != 0 &&
-	    batadv_interface_check(globals->mesh_iface) < 0)
+	    batadv_interface_check(globals->mesh_iface) < 0) {
+		fprintf(stderr, "Can't start server: batman-adv interface %s not found\n",
+			globals->mesh_iface);
 		return -1;
+	}
 
 	num_socks = netsock_open_all(globals);
 	if (num_socks <= 0) {