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mdns_search_service: simply the search for a free slot.

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This commit is contained in:
Our Air Quality 2019-04-03 21:40:14 +11:00 committed by Dirk Ziegelmeier
parent af5906370f
commit 2229c51704
1 changed files with 4 additions and 5 deletions
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9
src/apps/mdns/mdns.c
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@ -2537,7 +2537,7 @@ mdns_search_service(const char *name, const char *service, enum mdns_sd_proto pr
struct netif *netif, search_result_fn_t result_fn, void *arg,
s8_t *request_id)
{
s8_t i, slot = -1;
u8_t slot;
struct mdns_request *req;
if (name) {
LWIP_ERROR("mdns_search_service: Name too long", (strlen(name) <= MDNS_LABEL_MAXLEN), return ERR_VAL);
@ -2545,13 +2545,12 @@ mdns_search_service(const char *name, const char *service, enum mdns_sd_proto pr
LWIP_ERROR("mdns_search_service: Service too long", (strlen(service) < MDNS_DOMAIN_MAXLEN), return ERR_VAL);
LWIP_ERROR("mdns_search_service: Bad reqid pointer", request_id, return ERR_VAL);
LWIP_ERROR("mdns_search_service: Bad proto (need TCP or UDP)", (proto == DNSSD_PROTO_TCP || proto == DNSSD_PROTO_UDP), return ERR_VAL);
for (i = 0; i < MDNS_MAX_REQUESTS; i++) {
if (mdns_requests[i].result_fn == NULL) {
slot = i;
for (slot = 0; slot < MDNS_MAX_REQUESTS; slot++) {
if (mdns_requests[slot].result_fn == NULL) {
break;
}
}
if (slot < 0) {
if (slot >= MDNS_MAX_REQUESTS) {
/* Don't assert if no more space in mdns_request table. Just return an error. */
return ERR_MEM;
}