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check name resolution error to avoid segfault

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This commit is contained in:
Yves Rutschle 2024-01-05 11:15:53 +01:00
parent 6f949419d1
commit 940461de18
1 changed files with 6 additions and 3 deletions
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7
udp-listener.c
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@ -225,13 +225,16 @@ static void mark_active(struct connection* cnx)
/* Creates a new non-blocking socket */ /* Creates a new non-blocking socket */
static int nonblocking_socket(struct sslhcfg_protocols_item* proto) static int nonblocking_socket(struct sslhcfg_protocols_item* proto)
{ {
int res;
if (proto->resolve_on_forward) { if (proto->resolve_on_forward) {
resolve_split_name(&(proto->saddr), proto->host, res = resolve_split_name(&(proto->saddr), proto->host,
proto->port); proto->port);
if (res) return -1;
} }
int out = socket(proto->saddr->ai_family, SOCK_DGRAM, 0); int out = socket(proto->saddr->ai_family, SOCK_DGRAM, 0);
int res = set_nonblock(out); res = set_nonblock(out);
if (res == -1) { if (res == -1) {
print_message(msg_system_error, "%s:%d:%s:%d:%s\n", __FILE__, __LINE__, "udp:socket:nonblock", errno, strerror(errno)); print_message(msg_system_error, "%s:%d:%s:%d:%s\n", __FILE__, __LINE__, "udp:socket:nonblock", errno, strerror(errno));
close(out); close(out);