From 10abe8aba27c6bc42e5512d0044352be238fc269 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon>
Date: Sun, 14 Feb 2010 12:51:53 +0000
Subject: [PATCH] Use pointers instead of using SMEMCPY

---
 src/core/dns.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/core/dns.c b/src/core/dns.c
index 9157c582..ceb40ef3 100644
--- a/src/core/dns.c
+++ b/src/core/dns.c
@@ -579,7 +579,7 @@ dns_send(u8_t numdns, const char* name, u8_t id)
 {
   err_t err;
   struct dns_hdr *hdr;
-  struct dns_query qry;
+  struct dns_query *qry;
   struct pbuf *p;
   char *query, *nptr;
   const char *pHostname;
@@ -620,9 +620,9 @@ dns_send(u8_t numdns, const char* name, u8_t id)
     *query++='\0';
 
     /* fill dns query */
-    qry.type = htons(DNS_RRTYPE_A);
-    qry.cls = htons(DNS_RRCLASS_IN);
-    SMEMCPY(query, &qry, SIZEOF_DNS_QUERY);
+    qry = (struct dns_query *)query;
+    qry->type = htons(DNS_RRTYPE_A);
+    qry->cls = htons(DNS_RRCLASS_IN);
 
     /* resize pbuf to the exact dns query */
     pbuf_realloc(p, (u16_t)((query + SIZEOF_DNS_QUERY) - ((char*)(p->payload))));
@@ -744,7 +744,7 @@ dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t
   u16_t i;
   char *pHostname;
   struct dns_hdr *hdr;
-  struct dns_answer ans;
+  struct dns_answer *ans;
   struct dns_table_entry *pEntry;
   u16_t nquestions, nanswers;
 #if (DNS_USES_STATIC_BUF == 0)
@@ -823,11 +823,11 @@ dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t
           pHostname = (char *) dns_parse_name((unsigned char *)pHostname);
 
           /* Check for IP address type and Internet class. Others are discarded. */
-          SMEMCPY(&ans, pHostname, SIZEOF_DNS_ANSWER);
-          if((ans.type == htons(DNS_RRTYPE_A)) && (ans.cls == htons(DNS_RRCLASS_IN)) &&
-             (ans.len == htons(sizeof(ip_addr_t))) ) {
+          ans = (struct dns_answer *)pHostname;
+          if((ans->type == htons(DNS_RRTYPE_A)) && (ans->cls == htons(DNS_RRCLASS_IN)) &&
+             (ans->len == htons(sizeof(ip_addr_t))) ) {
             /* read the answer resource record's TTL, and maximize it if needed */
-            pEntry->ttl = ntohl(ans.ttl);
+            pEntry->ttl = ntohl(ans->ttl);
             if (pEntry->ttl > DNS_MAX_TTL) {
               pEntry->ttl = DNS_MAX_TTL;
             }
@@ -843,7 +843,7 @@ dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t
             /* deallocate memory and return */
             goto memerr2;
           } else {
-            pHostname = pHostname + SIZEOF_DNS_ANSWER + htons(ans.len);
+            pHostname = pHostname + SIZEOF_DNS_ANSWER + htons(ans->len);
           }
           --nanswers;
         }