Unverified Commit 036bff56 authored by Terry Ellison's avatar Terry Ellison Committed by GitHub
Browse files

Use dynamic memory for cached DNS names (#2763)

Fixes #2511
parent a62db236
...@@ -177,7 +177,7 @@ struct dns_table_entry { ...@@ -177,7 +177,7 @@ struct dns_table_entry {
u8_t seqno; u8_t seqno;
u8_t err; u8_t err;
u32_t ttl; u32_t ttl;
char name[DNS_MAX_NAME_LENGTH]; char *name;
ip_addr_t ipaddr; ip_addr_t ipaddr;
/* pointer to callback on DNS query done */ /* pointer to callback on DNS query done */
dns_found_callback found; dns_found_callback found;
...@@ -924,11 +924,14 @@ dns_enqueue(const char *name, dns_found_callback found, void *callback_arg) ...@@ -924,11 +924,14 @@ dns_enqueue(const char *name, dns_found_callback found, void *callback_arg)
LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": use DNS entry %"U16_F"\n", name, (u16_t)(i))); LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": use DNS entry %"U16_F"\n", name, (u16_t)(i)));
/* fill the entry */ /* fill the entry */
namelen = LWIP_MIN(os_strlen(name), DNS_MAX_NAME_LENGTH-1);
if ((pEntry->name = (char *) mem_realloc(pEntry->name, namelen+1)) == NULL) {
return ERR_MEM;
}
pEntry->state = DNS_STATE_NEW; pEntry->state = DNS_STATE_NEW;
pEntry->seqno = dns_seqno++; pEntry->seqno = dns_seqno++;
pEntry->found = found; pEntry->found = found;
pEntry->arg = callback_arg; pEntry->arg = callback_arg;
namelen = LWIP_MIN(os_strlen(name), DNS_MAX_NAME_LENGTH-1);
MEMCPY(pEntry->name, name, namelen); MEMCPY(pEntry->name, name, namelen);
pEntry->name[namelen] = 0; pEntry->name[namelen] = 0;
......
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