Fix __warn_unused_result__, add more of it and fix the resulting warnings.

[meshlink] / examples / groupchat.c

diff --git a/examples/groupchat.c b/examples/groupchat.c
index 38bbd85b63d009566d783267bb7438a2960c79c3..c049dd8a49b79ab868dbe39e1cd43d6072b3ae93 100644 (file)
--- a/examples/groupchat.c
+++ b/examples/groupchat.c
@@ -227,9 +227,31 @@ static void parse_command(meshlink_handle_t *mesh, char *buf) {
                        return;
                }
 
-               meshlink_blacklist(mesh, node);
+               if(!meshlink_blacklist(mesh, node)) {
+                       fprintf(stderr, "Error blacklising '%s': %s", arg, meshlink_strerror(meshlink_errno));
+                       return;
+               }
 
                fprintf(stderr, "Node '%s' blacklisted.\n", arg);
+       } else if(!strcasecmp(buf, "whitelist")) {
+               if(!arg) {
+                       fprintf(stderr, "/whitelist requires an argument!\n");
+                       return;
+               }
+
+               meshlink_node_t *node = meshlink_get_node(mesh, arg);
+
+               if(!node) {
+                       fprintf(stderr, "Error looking up '%s': %s\n", arg, meshlink_strerror(meshlink_errno));
+                       return;
+               }
+
+               if(!meshlink_whitelist(mesh, node)) {
+                       fprintf(stderr, "Error whitelising '%s': %s", arg, meshlink_strerror(meshlink_errno));
+                       return;
+               }
+
+               fprintf(stderr, "Node '%s' whitelisted.\n", arg);
        } else if(!strcasecmp(buf, "who")) {
                meshlink_submesh_t *node_group = NULL;