ldns(3)

💖 ldns(3) — the ldns library, bestie edition 💖

okay so you're reading the ldns(3) page from the Library Functions Manual — welcome, you're gonna love it here 🫶

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✨ NAME ✨

ldns_dname_compare, ldns_dname_interval — comparing two dnames, that's the whole job 💅

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🌸 SYNOPSIS 🌸

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

#include <ldns/ldns.h>

int ldns_dname_compare(const ldns_rdf *dname1, const ldns_rdf *dname2);

int ldns_dname_interval(const ldns_rdf *prev, const ldns_rdf *middle,
const ldns_rdf *next);

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🦋 DESCRIPTION 🦋

ldns_dname_compare()

So this one compares the two dname rdf's according to the algorithm for ordering in RFC4034 Section 6. literally the canon ordering algorithm, no cap.

• dname1: First dname rdf to compare
• dname2: Second dname rdf to compare

Returns -1 if dname1 comes before dname2, 1 if dname1 comes after dname2, and 0 if they are equal. iconically simple 🎀

ldns_dname_interval()

checks if middle lays in the interval defined by prev and next, like:

prev <= middle < next

This is useful for nsec checking 👑

• prev: the previous dname
• middle: the dname to check
• next: the next dname

return 0 on error or unknown, -1 when middle is in the interval, +1 when not 🌈

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👑 AUTHOR 👑

The ldns team at NLnet Labs. obsessed with them fr fr 💜

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😭 REPORTING BUGS 😭

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

not me asking you to file an issue — do it bestie, they wanna know 🙈

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💀 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.

no warranty at all, like zero, nada, don't come for them if it breaks 😭

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🌟 SEE ALSO 🌟

ldns_dname_is_subdomain. And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034 and RFC4035.

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🧚 REMARKS 🧚

This manpage was automatically generated from the ldns source code. (yes, a robot wrote it, and now a girlie rewrote the robot's homework 💅)

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and that's the whole page!! 💖 this was ldns(3) — the source/version on the footer is the ldns(3) manual, dated 30 May 2006 🎀 slay, ate, periodt, go compare some dnames ✨🦋💜