ldns(3)

💖 ldns — the rr-attribute-setting girlies 💖

okay so bestie, welcome to ldns(3), the library functions manual for the one and only ldns 💅 this page is all about the little setters that let you poke at an ldns_rr record and change its attributes. no cap, it's giving "makeover montage" energy ✨

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🌸 NAME 🌸

ldns_rr_set_owner, ldns_rr_set_ttl, ldns_rr_set_type, ldns_rr_set_rd_count, ldns_rr_set_class, ldns_rr_set_rdf — set ldns_rr attributes 🎀

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✨ SYNOPSIS ✨

like, here's the exact vibe you need to pull in first:

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

#include <ldns/ldns.h>

void ldns_rr_set_owner(ldns_rr *rr, ldns_rdf *owner);

void ldns_rr_set_ttl(ldns_rr *rr, uint32_t ttl);

void ldns_rr_set_type(ldns_rr *rr, ldns_rr_type rr_type);

void ldns_rr_set_rd_count(ldns_rr *rr, size_t count);

void ldns_rr_set_class(ldns_rr *rr, ldns_rr_class rr_class);

ldns_rdf* ldns_rr_set_rdf(ldns_rr *rr, const ldns_rdf *f, size_t
position);

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🦋 DESCRIPTION 🦋

so basically every one of these is a lil setter that reaches into your rr struct and swaps one attribute out. main character energy, one field at a time 👑

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💜 ldns_rr_set_owner()

sets the owner in the rr structure. it's the glow-up for your owner field, fr fr.

• *rr — the rr to operate on
• *owner — set to this owner

returns void (so, like, nothing comes back, she's mysterious 🌙)

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💜 ldns_rr_set_ttl()

sets the ttl in the rr structure. yes, the time-to-live, the expiry-date of your whole record's existence 😭

• *rr — the rr to operate on
• ttl — set to this ttl

returns void

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💜 ldns_rr_set_type()

sets the type in the rr. A? AAAA? MX? she can be whoever she wants to be 🦋

• *rr — the rr to operate on
• rr_type — set to this type

returns void

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💜 ldns_rr_set_rd_count()

sets the rd_count in the rr. that's the count of the rdf fields, bestie, keep track of your girlies ✨

• *rr — the rr to operate on
• count — set to this count

returns void

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💜 ldns_rr_set_class()

sets the class in the rr. IN, CH, whatever, iconic either way 💅

• *rr — the rr to operate on
• rr_class — set to this class

returns void

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💜 ldns_rr_set_rdf()

okay this one is the interesting one 👀 sets an rdf member — it will be set on the position given. and here's the slay: the old value is returned, like pop. so you're not just overwriting, you're getting the thing that was there before, handed back to you 🫶

• *rr — the rr to operate on
• *f — the rdf to set
• position — the position the set the rdf

returns the old value in the rr, or NULL on failure 💀

heads up: NULL on failure means you gotta check that return value. don't just assume she came back with a present. 😭

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🌈 AUTHOR 🌈

the ldns team at NLnet Labs. kings and queens, no notes 👑

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🎀 REPORTING BUGS 🎀

found a bug? not the vibe. please report bugs to dns-team@nlnetlabs.nl or on GitHub at https://github.com/NLnetLabs/ldns/issues — they wanna know, fr fr 🙈

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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. read that again bestie, NO warranty, like, at all 😭

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💫 SEE ALSO 💫

ldns_rr, ldns_rr_list. And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034 and RFC4035. iykyk 📚

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🧚 REMARKS 🧚

This manpage was automatically generated from the ldns source code. (yes, a robot wrote this one, and honestly? she ate. 🤖💅)

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and that's the whole page, bestie!! 💖✨🦋 this lil legend is dated 30 May 2006 and it's section 3 of the ldns manual, mwah 💋 take care of your rr's and they'll take care of you 🫶🌸