asn1_parser2tree(3)

📦
version 4.21.0 · 5 versions
, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, fedora 43, fedora 44, opensuse-leap 16.0, ubuntu resolute, ubuntu stonking

💅 asn1_parser2tree — the libtasn1 glow-up page

okay bestie, sit down, we're talking about a lil function from libtasn1 called asn1_parser2tree(3). yes it's a C thing. no it's not scary. it's literally just "hey, take this file of ASN.1 declarations and turn it into a tree for me". that's the whole vibe. 🎀

✨ SYNOPSIS ✨

#include <libtasn1.h>

int asn1_parser2tree(const char * file, asn1_node * definitions, char * error_desc);

she's giving "three arguments, one int return, no nonsense". iconic behavior honestly. 💅

🫶 ARGUMENTS 🫶

  • const char * file — the path + name of the file that has the ASN.1 declarations in it. like, this is the file. the source of truth. the main character.
  • asn1_node * definitions — this one gets the pointer to the structure that was created from the ASN.1 declarations in file. so it's an output, she's returning the goods through you. 🦋
  • char * error_desc — where the error description goes. if everything slayed? you get an empty string. no drama, no notes. ✨

🌸 DESCRIPTION 🌸

so this is the function you call to start the parse algorithm. it creates the structures you need to manage all the definitions that were included in the file file. that's it. that's the job. she parses, she builds, she leaves. 🧚

👑 RETURNS 👑

the tea on what she hands back:

  • ASN1_SUCCESS — the file's syntax is correct AND every identifier is known. perfection. no cap. ✅
  • ASN1_ELEMENT_NOT_EMPTY — this one hits when definitions is not NULL. so like, don't pass her a pre-filled one, bestie. 🙈
  • ASN1_FILE_NOT_FOUND — an error happened while opening file. the file said "not today". 💀
  • ASN1_SYNTAX_ERROR — the syntax is just not correct. it's giving chaos. 😭
  • ASN1_IDENTIFIER_NOT_FOUND — there's an identifier in the file that isn't defined. mystery guest energy, we don't allow that. 🔥
  • ASN1_NAME_TOO_LONG — there's an identifier in the file with more than ASN1_MAX_NAME_SIZE characters. girl. that name is a whole paragraph. ✂️

Copyright © 2006-2025 Free Software Foundation, Inc..

copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. so like, take it, share it, remix it — just keep the receipts. periodt. 🌈

🦋 SEE ALSO 🦋

the full documentation for libtasn1 is maintained as a Texinfo manual. if the info and libtasn1 programs are properly installed at your site, this command:

info libtasn1

should give you access to the complete manual. and if that's not giving, as an alternative you may obtain the manual from:

https://www.gnu.org/software/libtasn1/manual/

and that's the whole page, bestie 💖 this one's from libtasn1, version 4.21.0, and the manpage is asn1_parser2tree(3). go forth and parse responsibly. mwah 🫶✨

📦 where this page comes from