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guard against empty mqtt subscription topic

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This commit is contained in:
hxy7yx
2024-08-14 14:23:30 +08:00
parent cd9da5afef
commit f5976f95dc
1 changed files with 5 additions and 3 deletions
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src/core/manager_internal.c
+5 -3
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@@ -702,9 +702,11 @@ int neu_manager_subscribe(neu_manager_t *manager, const char *app,
// guard against empty mqtt topic parameter
// this is not an elegant solution due to the current architecture
if (params && 0 == strcmp(adapter->module->module_name, "MQTT")) {
neu_json_elem_t elem = { .name = "topic", .t = NEU_JSON_STR };
neu_parse_param(params, NULL, 1, &elem);
if (elem.v.val_str && 0 == strlen(elem.v.val_str)) {
neu_json_elem_t elem = { .name = "topic",
.t = NEU_JSON_STR,
.v.val_str = NULL };
int ret = neu_parse_param(params, NULL, 1, &elem);
if (ret != 0 || (elem.v.val_str && 0 == strlen(elem.v.val_str))) {
free(elem.v.val_str);
return NEU_ERR_MQTT_SUBSCRIBE_FAILURE;
}