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enhanced the dns client code with timeout handling, id tracking, etc

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hyung-hwan
2019-04-11 07:26:00 +00:00
parent 898bf787d5
commit a0f9b567cb
4 changed files with 269 additions and 162 deletions
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20
mio/lib/mio-dns.h
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@ -112,8 +112,20 @@ enum mio_dns_eopt_code_t
};
typedef enum mio_dns_eopt_code_t mio_dns_eopt_code_t;
/* dns message preamble */
typedef struct mio_dns_msg_t mio_dns_msg_t;
struct mio_dns_msg_t
{
mio_oow_t buflen;
mio_oow_t pktlen;
mio_tmridx_t rtmridx;
mio_dev_t* dev;
mio_dns_msg_t* prev;
mio_dns_msg_t* next;
};
#include <mio-pac1.h>
struct mio_dns_hdr_t
struct mio_dns_pkt_t
{
mio_uint16_t id;
#if defined(MIO_ENDIAN_BIG)
@ -147,15 +159,15 @@ struct mio_dns_hdr_t
mio_uint16_t nscount; /* number of name servers (authority part. only NS types) */
mio_uint16_t arcount; /* number of additional resource (additional part) */
};
typedef struct mio_dns_hdr_t mio_dns_hdr_t;
typedef struct mio_dns_pkt_t mio_dns_pkt_t;
struct mio_dns_hdr_alt_t
struct mio_dns_pkt_alt_t
{
mio_uint16_t id;
mio_uint16_t flags;
mio_uint16_t rrcount[4];
};
typedef struct mio_dns_hdr_alt_t mio_dns_hdr_alt_t;
typedef struct mio_dns_pkt_alt_t mio_dns_pkt_alt_t;
/* question
* name, qtype, qclass
* answer