X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fmdnsd.git;a=blobdiff_plain;f=dns.c;h=89cd4ce5a76fc4ebd736784cf6d6fcbe4180bf0d;hp=3f6ecbe3988614105d402564acce04fe5acb08ee;hb=ae8773477c31b741ba8b47f8898e4c0a1c834b85;hpb=d5c478a29fb101cdb921741a035d6d176a6ffb0f

diff --git a/dns.c b/dns.c
index 3f6ecbe..89cd4ce 100644
--- a/dns.c
+++ b/dns.c
@@ -39,6 +39,7 @@
 #include "interface.h"
 
 static char name_buffer[MAX_NAME_LEN + 1];
+static char dns_buffer[MAX_NAME_LEN];
 static struct blob_buf ans_buf;
 
 const char*
@@ -76,7 +77,7 @@ dns_send_question(struct interface *iface, const char *question, int type, int u
 			.iov_len = sizeof(h),
 		},
 		{
-			.iov_base = name_buffer,
+			.iov_base = dns_buffer,
 		},
 		{
 			.iov_base = &q,
@@ -89,7 +90,7 @@ dns_send_question(struct interface *iface, const char *question, int type, int u
 	q.class = cpu_to_be16(((unicast) ? (CLASS_UNICAST) : (0))  | 1);
 	q.type = cpu_to_be16(type);
 
-	len = dn_comp(question, (void *) name_buffer, sizeof(name_buffer), NULL, NULL);
+	len = dn_comp(question, (void *) dns_buffer, sizeof(dns_buffer), NULL, NULL);
 	if (len < 1)
 		return;
 
@@ -299,6 +300,9 @@ parse_answer(struct interface *iface, uint8_t *buffer, int len, uint8_t **b, int
 		return -1;
 	}
 
+	if ((a->class & ~CLASS_FLUSH) != CLASS_IN)
+		return -1;
+
 	rdata = *b;
 	if (a->rdlength > *rlen) {
 		fprintf(stderr, "dropping: bad question\n");
@@ -309,7 +313,7 @@ parse_answer(struct interface *iface, uint8_t *buffer, int len, uint8_t **b, int
 	*b += a->rdlength;
 
 	if (cache)
-		cache_answer(iface, buffer, len, name, a, rdata);
+		cache_answer(iface, buffer, len, name, a, rdata, a->class & CLASS_FLUSH);
 
 	return 0;
 }