ARES_PARSE_NS_REPLY(3)

πŸ“¦
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✨ ARES_PARSE_NS_REPLY(3) ✨

okay so bestie, welcome to the Library Functions Manual πŸ’– this one's about ares_parse_ns_reply, and honestly? it's giving "quiet little function that does one job and does it well." we love a focused queen. πŸ‘‘


🌸 NAME 🌸

ares_parse_ns_reply β€” parse a reply to a DNS query of type NS into a hostent


πŸ¦‹ SYNOPSIS πŸ¦‹

#include <ares.h>

int ares_parse_ns_reply(const unsigned char *abuf, int alen,
                        struct hostent **host);

πŸ’… DESCRIPTION πŸ’…

so basically, ares_parse_ns_reply takes the response to a query of type NS and parses it into a struct hostent. that's the whole vibe. πŸŽ€

the parameters abuf and alen give the contents of the response β€” abuf is your raw bytes, alen is how many of them there are. iykyk. 🌈

the result gets stored in allocated memory, and a pointer to it gets stored into the variable pointed to by host. so host is like, the address of your pointer. very demure, very pointer-to-pointer. 🫢

and here's the cute part β€” the nameservers are stored into the aliases field of the host structure. yes, the aliases field. not a separate one. that's just how it is. πŸ’€

⚠️ bestie, listen. it is the caller's responsibility to free the resulting host structure using ares_free_hostent(3) when it is no longer needed. don't forget. don't ghost it. that's a memory leak and we do NOT do those. 😭

⭐ RETURN VALUES ⭐

ares_parse_ns_reply can return any of the following values, so let's do a little vibe check on each one:

  • ARES_SUCCESS β€” slay! the response was successfully parsed. πŸ’–
  • ARES_EBADRESP β€” the response was malformatted. it's giving corrupted. πŸ™ˆ
  • ARES_ENODATA β€” the response did not contain an answer to the query. empty handed, no cap. πŸ’€
  • ARES_ENOMEM β€” memory was exhausted. we ran out. it's over. 😭

πŸ”₯ SEE ALSO πŸ”₯


that's the whole page, bestie, you ate it πŸ“βœ¨ mwah πŸ’œ

this was ARES_PARSE_NS_REPLY(3) from the Library Functions Manual, dated 10 February 2007 β€” iconic since day one, no notes. πŸ‘‘πŸŒΈπŸ¦‹