ldns(3) Library Functions Manual ldns(3)

# [NAME](#NAME)

ldns\_pkt, ldns\_pkt\_section, ldns\_pkt\_type - request or answer packets types

# [SYNOPSIS](#SYNOPSIS)

#include <stdint.h>  
#include <stdbool.h>

#include <ldns/ldns.h>

ldns\_pkt\_section();

ldns\_pkt\_type();

# [DESCRIPTION](#DESCRIPTION)

*ldns\_pkt*  
DNS packet

This structure contains a complete DNS packet (either a query or an answer)

It is the complete representation of what you actually send to a  
nameserver, and what it sends back (assuming you are the client here).  
struct ldns\_struct\_pkt  
{  
**Header section:**  
ldns\_hdr \*\_header;  
/* extra items needed in a packet \*/  
**an rdf (A or AAAA) with the IP address of the server it is from:**  
ldns\_rdf \*\_answerfrom;  
**Timestamp of the time the packet was sent or created:**  
struct timeval timestamp;  
**The duration of the query this packet is an answer to:**  
uint32\_t \_querytime;  
**The size of the wire format of the packet in octets:**  
size\_t \_size;  
**Optional tsig rr:**  
ldns\_rr \*\_tsig\_rr;  
**EDNS0 available buffer size, see RFC2671:**  
uint16\_t \_edns\_udp\_size;  
**EDNS0 Extended rcode:**  
uint8\_t \_edns\_extended\_rcode;  
**EDNS Version:**  
uint8\_t \_edns\_version;  
/* OPT pseudo-RR presence flag \*/  
uint8\_t \_edns\_present;  
**Reserved EDNS data bits:**  
uint16\_t \_edns\_z;  
**Arbitrary EDNS rdata:**  
ldns\_rdf \*\_edns\_data;  
**Structed EDNS data:**  
ldns\_edns\_option\_list \*\_edns\_list;  
**Question section:**  
ldns\_rr\_list \*\_question;  
**Answer section:**  
ldns\_rr\_list \*\_answer;  
**Authority section:**  
ldns\_rr\_list \*\_authority;  
**Additional section:**  
ldns\_rr\_list \*\_additional;  
};  
typedef struct ldns\_struct\_pkt ldns\_pkt;

*ldns\_pkt\_section*()

*ldns\_pkt\_type*()

# [AUTHOR](#AUTHOR)

The ldns team at NLnet Labs.

# [REPORTING BUGS](#REPORTING_BUGS)

Please report bugs to dns-team@nlnetlabs.nl or on GitHub at https://github.com/NLnetLabs/ldns/issues

# [COPYRIGHT](#COPYRIGHT)

Copyright (c) 2004 - 2006 NLnet Labs.

Licensed under the BSD License. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# [SEE ALSO](#SEE_ALSO)

*ldns\_pkt\_new*, *ldns\_pkt\_free*, *ldns\_pkt\_print*, *ldns\_pkt\_query\_new*, *ldns\_pkt\_query\_new\_frm\_str*, *ldns\_pkt\_reply\_type*, *ldns\_pkt\_id*, *ldns\_pkt\_qr*, *ldns\_pkt\_aa*, *ldns\_pkt\_tc*, *ldns\_pkt\_rd*, *ldns\_pkt\_cd*, *ldns\_pkt\_ra*, *ldns\_pkt\_ad*, *ldns\_pkt\_get\_opcode*, *ldns\_pkt\_get\_rcode*, *ldns\_pkt\_qdcount*, *ldns\_pkt\_ancount*, *ldns\_pkt\_nscount*, *ldns\_pkt\_arcount*, *ldns\_pkt\_answerfrom*, *ldns\_pkt\_querytime*, *ldns\_pkt\_size*, *ldns\_pkt\_tsig*, *ldns\_pkt\_question*, *ldns\_pkt\_answer*, *ldns\_pkt\_authority*, *ldns\_pkt\_additional*, *ldns\_pkt\_get\_section\_clone*, *ldns\_pkt\_rr\_list\_by\_name*, *ldns\_pkt\_rr\_list\_by\_type*, *ldns\_pkt\_rr\_list\_by\_name\_and\_type*, *ldns\_pkt\_set\_flags*, *ldns\_pkt\_set\_id*, *ldns\_pkt\_set\_qr*, *ldns\_pkt\_set\_aa*, *ldns\_pkt\_set\_tc*, *ldns\_pkt\_set\_rd*, *ldns\_pkt\_set\_cd*, *ldns\_pkt\_set\_ra*, *ldns\_pkt\_set\_ad*, *ldns\_pkt\_set\_opcode*, *ldns\_pkt\_set\_rcode*, *ldns\_pkt\_set\_qdcount*, *ldns\_pkt\_set\_ancount*, *ldns\_pkt\_set\_nscount*, *ldns\_pkt\_set\_arcount*, *ldns\_pkt\_set\_answerfrom*, *ldns\_pkt\_set\_querytime*, *ldns\_pkt\_set\_size*, *ldns\_pkt\_set\_section\_count*, *ldns\_pkt\_set\_tsig*, *ldns\_pkt\_edns*, *ldns\_pkt\_edns\_udp\_size*, *ldns\_pkt\_edns\_extended\_rcode*, *ldns\_pkt\_edns\_version*, *ldns\_pkt\_edns\_z*, *ldns\_pkt\_edns\_unassigned*, *ldns\_pkt\_edns\_data*, *ldns\_pkt\_set\_edns\_udp\_size*, *ldns\_pkt\_set\_edns\_extended\_rcode*, *ldns\_pkt\_set\_edns\_version*, *ldns\_pkt\_set\_edns\_z*, *ldns\_pkt\_set\_edns\_unassigned*, *ldns\_pkt\_set\_edns\_data*. And **perldoc Net::DNS**, **RFC1034**, **RFC1035**, **RFC4033**, **RFC4034** and **RFC4035**.

# [REMARKS](#REMARKS)

This manpage was automatically generated from the ldns source code.

30 May 2006

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Document: ldns_pkt(3) from ldns 1.9.2-r2 (Chainguard OS)
Source: https://github.com/NLnetLabs/ldns.git