mirror of
https://github.com/lwip-tcpip/lwip.git
synced 2024-09-13 02:05:43 +00:00
Fix possible NULL pointer dereference in mdns.c introduced in my last commit
This commit is contained in:
parent
ee815e4e7a
commit
c8c804140d
@ -1928,9 +1928,10 @@ err_t
|
|||||||
mdns_resp_remove_netif(struct netif *netif)
|
mdns_resp_remove_netif(struct netif *netif)
|
||||||
{
|
{
|
||||||
int i;
|
int i;
|
||||||
struct mdns_host* mdns = (struct mdns_host*)netif->client_data[mdns_netif_client_id];
|
struct mdns_host* mdns;
|
||||||
|
|
||||||
LWIP_ASSERT("mdns_resp_remove_netif: Null pointer", netif);
|
LWIP_ASSERT("mdns_resp_remove_netif: Null pointer", netif);
|
||||||
|
mdns = (struct mdns_host*)netif->client_data[mdns_netif_client_id];
|
||||||
LWIP_ERROR("mdns_resp_remove_netif: Not an active netif", (mdns != NULL), return ERR_VAL);
|
LWIP_ERROR("mdns_resp_remove_netif: Not an active netif", (mdns != NULL), return ERR_VAL);
|
||||||
|
|
||||||
for (i = 0; i < MDNS_MAX_SERVICES; i++) {
|
for (i = 0; i < MDNS_MAX_SERVICES; i++) {
|
||||||
@ -1974,9 +1975,10 @@ mdns_resp_add_service(struct netif *netif, const char *name, const char *service
|
|||||||
int i;
|
int i;
|
||||||
int slot = -1;
|
int slot = -1;
|
||||||
struct mdns_service *srv;
|
struct mdns_service *srv;
|
||||||
struct mdns_host* mdns = (struct mdns_host*)netif->client_data[mdns_netif_client_id];
|
struct mdns_host* mdns;
|
||||||
|
|
||||||
LWIP_ASSERT("mdns_resp_add_service: netif != NULL", netif);
|
LWIP_ASSERT("mdns_resp_add_service: netif != NULL", netif);
|
||||||
|
mdns = (struct mdns_host*)netif->client_data[mdns_netif_client_id];
|
||||||
LWIP_ERROR("mdns_resp_add_service: Not an mdns netif", (mdns != NULL), return ERR_VAL);
|
LWIP_ERROR("mdns_resp_add_service: Not an mdns netif", (mdns != NULL), return ERR_VAL);
|
||||||
|
|
||||||
LWIP_ERROR("mdns_resp_add_service: Name too long", (strlen(name) <= MDNS_LABEL_MAXLEN), return ERR_VAL);
|
LWIP_ERROR("mdns_resp_add_service: Name too long", (strlen(name) <= MDNS_LABEL_MAXLEN), return ERR_VAL);
|
||||||
|
Loading…
Reference in New Issue
Block a user