add known answer suppresion server part

[catta] / dns.h

diff --git a/dns.h b/dns.h
index bdb0f0748ce49a31bdece57c5a664b273adf16da..c5d2fae3562f96fe230c73e1e57a6e06dd885535 100644 (file)
--- a/dns.h
+++ b/dns.h
@@ -5,14 +5,20 @@
 
 #include "rr.h"
 
-#define FLX_DNS_MAX_PACKET_SIZE 9000
+#define FLX_DNS_PACKET_MAX_SIZE 9000
+#define FLX_DNS_PACKET_HEADER_SIZE 12
 
 typedef struct _flxDnsPacket {
-    guint size, rindex;
-    guint8 data[FLX_DNS_MAX_PACKET_SIZE];
+    guint size, rindex, max_size;
 } flxDnsPacket;
 
-flxDnsPacket* flx_dns_packet_new(void);
+
+#define FLX_DNS_PACKET_DATA(p) (((guint8*) p) + sizeof(flxDnsPacket))
+
+flxDnsPacket* flx_dns_packet_new(guint size);
+flxDnsPacket* flx_dns_packet_new_query(guint size);
+flxDnsPacket* flx_dns_packet_new_response(guint size);
+
 void flx_dns_packet_free(flxDnsPacket *p);
 void flx_dns_packet_set_field(flxDnsPacket *p, guint index, guint16 v);
 guint16 flx_dns_packet_get_field(flxDnsPacket *p, guint index);
@@ -39,10 +45,10 @@ flxRecord* flx_dns_packet_consume_record(flxDnsPacket *p, gboolean *ret_cache_fl
 
 gconstpointer flx_dns_packet_get_rptr(flxDnsPacket *p);
 
-
-
 gint flx_dns_packet_skip(flxDnsPacket *p, guint length);
 
+gboolean flx_dns_packet_is_empty(flxDnsPacket *p);
+
 #define DNS_FIELD_ID 0
 #define DNS_FIELD_FLAGS 1
 #define DNS_FIELD_QDCOUNT 2
@@ -53,6 +59,7 @@ gint flx_dns_packet_skip(flxDnsPacket *p, guint length);
 #define DNS_FLAG_QR (1 << 15)
 #define DNS_FLAG_OPCODE (15 << 11)
 #define DNS_FLAG_RCODE (15)
+#define DNS_FLAG_TC (1 << 9)
 
 #define DNS_FLAGS(qr, opcode, aa, tc, rd, ra, z, ad, cd, rcode) \
         (((guint16) !!qr << 15) |  \