DNS APIs Header file. More...

#include <stdint.h>

Macros
#define	MAX_DNS_BUF_SIZE 256
	maximum size of DNS buffer. *‍/ More...

#define	MAX_DOMAIN_NAME 16

#define	MAX_DNS_RETRY 2
	Requery Count. More...

#define	DNS_WAIT_TIME 3
	Wait response time. unit 1s. More...

#define	IPPORT_DOMAIN 53
	DNS server port number. More...

#define	DNS_MSG_ID 0x1122
	ID for DNS message. You can be modifyed it any number. More...

Functions
void	DNS_init (uint8_t *buf)

int8_t	DNS_run (uint8_t s, uint8_t dns_ip, uint8_t name, uint8_t *ip_from_dns, uint8_t mode)

void	DNS_time_handler (void)

Detailed Description

DNS APIs Header file.

Send DNS query & Receive DNS reponse.

Version: 1.1.0

Date: 2013/11/18

Revision history: <2013/10/21> 1st Release <2013/12/20> V1.1.0 1. Remove secondary DNS server in DNS_run If 1st DNS_run failed, call DNS_run with 2nd DNS again 2. DNS_timerHandler -> DNS_time_handler 3. Move the no reference define to dns.c 4. Integrated dns.h dns.c & dns_parse.h dns_parse.c into dns.h & dns.c <2013/12/20> V1.1.0

Author: Eric Jung & MidnightCow

Copyright

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the <ORGANIZATION> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file dns.h.

Macro Definition Documentation

◆ MAX_DNS_BUF_SIZE

#define MAX_DNS_BUF_SIZE 256

maximum size of DNS buffer. *‍/

Definition at line 65 of file dns.h.

◆ MAX_DOMAIN_NAME

#define MAX_DOMAIN_NAME 16

Definition at line 71 of file dns.h.

◆ MAX_DNS_RETRY

#define MAX_DNS_RETRY 2

Requery Count.

Definition at line 73 of file dns.h.

◆ DNS_WAIT_TIME

#define DNS_WAIT_TIME 3

Wait response time. unit 1s.

Definition at line 74 of file dns.h.

◆ IPPORT_DOMAIN

#define IPPORT_DOMAIN 53

DNS server port number.

Definition at line 76 of file dns.h.

◆ DNS_MSG_ID

#define DNS_MSG_ID 0x1122

ID for DNS message. You can be modifyed it any number.

Definition at line 78 of file dns.h.

Function Documentation

◆ DNS_init()

void DNS_init ( uint8_t * buf )

Definition at line 518 of file dns.c.

References DNS_MSG_ID, DNS_MSGID, and pDNSMSG.

◆ DNS_run()

int8_t DNS_run	(	uint8_t	s,
		uint8_t *	dns_ip,
		uint8_t *	name,
		uint8_t *	ip_from_dns,
		uint8_t	mode
	)

Definition at line 526 of file dns.c.

◆ DNS_time_handler()

void DNS_time_handler ( void )

Definition at line 594 of file dns.c.

References dns_1s_tick.

Macros

Functions