dns_name6_domain(3)

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version 0.34 · 2 versions
  • 0.34 · alpine 3.24, debian bookworm, debian trixie, nixos 26.05, nixpkgs unstable, opensuse-leap 16.0, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking (latest)
  • 0.30 · fedora 43, fedora 44, ubuntu jammy
, in alpine 3.24, debian bookworm, debian trixie, nixos 26.05, nixpkgs unstable, opensuse-leap 16.0, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

omg bestie, welcome to the Library Functions Manual page for dns_name6_domain(3). It's giving reverse-lookup hostname construction, and we're obsessed. 💅✨

✨ NAME ✨

dns_name6_domain — construct host name for reverse lookup. That's the whole assignment, no cap. 🎀

🦋 SYNTAX 🦋

#include <libowfat/dns.h>

void dns_name6_domain(char q[DNS_NAME6_DOMAIN],
                      const char* ip[16]);

🌸 DESCRIPTION 🌸

Okay so 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. Periodt. 💖

lowkey important: q needs that DNS_NAME6_DOMAIN bytes room, so don't skimp on the buffer, bestie. It's a real requirement. 😭

🌈 SEE ALSO 🌈

Go be nosy with dns_name6(3) and dns_name4_domain(3). The way they're all connected... iykyk. 🦋

kisses from the Library Functions Manual, page dns_name6_domain(3) — no date printed in the footer, so it's timeless, literally. 💅💖

📦 where this page comes from