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mqtt: throw an error if no publish and subscribe topic is given

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This commit is contained in:
Steffen Vogel 2019-01-12 13:48:52 +01:00
parent c2f83b01fd
commit 0d767ca697
1 changed files with 3 additions and 0 deletions
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3
lib/nodes/mqtt.c
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@ -171,6 +171,9 @@ int mqtt_parse(struct node *n, json_t *cfg)
m->username = username ? strdup(username) : NULL;
m->password = password ? strdup(password) : NULL;
if (!m->publish && !m->subscribe)
error("At least one topic has to be specified for node %s", node_name(n));
if (json_ssl) {
const char *cafile = NULL;
const char *capath = NULL;