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fix(edge): prevent crash on supernode resolution failure at startup #130

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fix(edge): prevent crash on supernode resolution failure at startup #130

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d830c06
fix(edge): prevent crash on supernode resolution failure at startup
catoc Apr 23, 2026
eeeb190
Merge branch 'n42n:main' into fix/supernode-dns-crash
catoc Apr 27, 2026
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25 changes: 18 additions & 7 deletions src/edge_utils.c
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Original file line number Diff line number Diff line change
Expand Up @@ -667,13 +667,24 @@ struct n3n_runtime_data* edge_init (const n2n_edge_conf_t *conf, int *rv) {
// Show the user what has been configured
resolve_log_hostnames(RESOLVE_LIST_SUPERNODE);

if(resolve_hostnames_str_to_peer_info(
RESOLVE_LIST_SUPERNODE,
&eee->supernodes)) {
traceEvent(
TRACE_WARNING,
"resolve_hostnames_str_to_peer_info returned errors"
);
// Loop until we successfully resolve at least one supernode
while(1) {
if(resolve_hostnames_str_to_peer_info(
RESOLVE_LIST_SUPERNODE,
&eee->supernodes)) {
traceEvent(
TRACE_WARNING,
"resolve_hostnames_str_to_peer_info returned errors"
);
}

// If we successfully got a supernode, break out of the loop
if(eee->supernodes) {
break;
}

traceEvent(TRACE_WARNING, "No supernodes resolved, retrying in 5 seconds...");
sleep(5);
}

// Statically calculate how many packet buffers we need:
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