---
name: "dns_name6_domain"
section: "3"
platform: "linux"
package: "libowfat-dev"
version: "0.32-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/dns_name6_domain"
---

# dns\_name6\_domain(3)

construct host name for reverse lookup

## NAME

dns\_name6\_domain - construct host name for reverse lookup

## SYNTAX

**#include \<libowfat/dns.h\>**

void **dns\_name6\_domain**(char *q*\[DNS\_NAME6\_DOMAIN\],\
                      const char\* *ip*\[16\]);

## DESCRIPTION

dns\_name6\_domain is a low-level component of dns\_name6.  It converts an IP address such as 4321:0:1:2:3:4:567:89ab into a domain name such as b.a.9.8.7.6.5.0.4.0.0.0.3.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.1.2.3.4.IP6.ARPA and places the packet-encoded domain name into *q*.

q is zero terminated.

q must have space for DNS\_NAME6\_DOMAIN bytes.

## SEE ALSO

[dns\_name6(3)](/dns_name6/3.md), [dns\_name4\_domain(3)](/dns_name4_domain/3.md)