[En-Nut-Discussion] NutDnsGetHostByName bug ?

[Zodianet]

 NutDnsGetHostByName (resolv.c)  seems to not release correctly memory
alloc, 
"doq->doq_name" in CreateDnsQuestion function. 
A single but not very elegant test "if (doq->doq_name)
NutHeapFree(doq->doq_name)" seems suppress this bug.   

Jean Pierre



static DNSQUESTION *CreateDnsQuestion(DNSQUESTION * doq,
                                      CONST u_char * name)
{
    if (doq == 0)
        doq = NutHeapAllocClear(sizeof(DNSQUESTION));
    if (doq) {
	    if (doq->doq_name) // <---------
           NutHeapFree(doq->doq_name); // <----------
	   doq->doq_name = NutHeapAlloc(strlen(name) + 1);
        strcpy(doq->doq_name, name);
        doq->doq_type = 1;
        doq->doq_class = 1;
    }