daxi20/smartdns
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Update code

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This commit is contained in:
Nick Peng
2018-05-12 00:24:18 +08:00
parent bbb8742283
commit b8cb84fc4a
3 changed files with 364 additions and 149 deletions
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30
dns.h
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@@ -79,14 +79,6 @@ struct dns_qds {
unsigned short classes;
};
struct dns_rrs {
unsigned short type;
unsigned short classes;
unsigned int ttl;
unsigned short rd_length;
char rd_data[0];
};
typedef uint32_t TTL;
typedef struct dns_question_t /* RFC-1035 */
@@ -148,12 +140,26 @@ typedef union dns_answer_t {
dns_aaaa_t aaaa;
} dns_answer_t;
#define DNS_RR_QD 0
#define DNS_RR_AN 1
#define DNS_RR_NS 2
#define DNS_RR_NR 3
struct dns_rrs {
unsigned short next;
unsigned short len;
unsigned char data[0];
};
struct dns_packet {
struct dns_head head;
dns_question_t *questions;
dns_answer_t *answers;
dns_answer_t *nameservers;
dns_answer_t *additional;
unsigned short questions;
unsigned short answers;
unsigned short nameservers;
unsigned short additional;
int size;
int len;
unsigned char data[0];
};
int dns_decode(struct dns_packet *packet, unsigned char *data, int size);