SSL_CTX_SET_CTLOG_LIST_FILE(3ossl)

📦
version 3.5.9 · 8 versions
, in fedora 43, fedora 44

💖 SSL_CTX_SET_CTLOG_LIST_FILE 💖

okay bestie, so this is a page from the OpenSSL manual, section 3ossl, and it's all about loading a Certificate Transparency log list from a file. it's giving "trust but verify" energy and honestly? we love that for us 🦋

✨ NAME ✨

SSL_CTX_set_default_ctlog_list_file, SSL_CTX_set_ctlog_list_file — load a Certificate Transparency log list from a file 📜

🌸 SYNOPSIS 🌸

#include <openssl/ssl.h>

int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx);
int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path);

look at them. two little functions. so much responsibility 🫶

💅 DESCRIPTION 💅

  • SSL_CTX_set_default_ctlog_list_file() — this one loads a list of Certificate Transparency (CT) logs from the default file location, and that file is literally called "ct_log_list.cnf", and it lives in the directory where OpenSSL is installed. no path needed, it just knows 💫
  • SSL_CTX_set_ctlog_list_file() — this one loads a list of CT logs from a specific path that you hand it. you're in charge, main character energy 👑

if you wanna know what that file is supposed to look like inside, go check out CTLOG_STORE_new(3) for the file format, because that's where the tea is 🍵

⚠️ NOTES ⚠️

okay listen up because this part matters:

  • These functions will not clear the existing CT log list — it will be appended to. so if you thought you were starting fresh, bestie, you were not 🙈 To replace the existing list, use SSL_CTX_set0_ctlog_store(3) first. periodt.
  • If an error occurs whilst parsing a particular log entry in the file, that log entry will be skipped. no drama, no crash, it just moves on 💀

🌈 RETURN VALUES 🌈

SSL_CTX_set_default_ctlog_list_file() and SSL_CTX_set_ctlog_list_file() return 1 if the log list is successfully loaded, and 0 if an error occurs. 🎀

and in the case of an error, the log list may have been partially loaded. so like… it tried. it really did. 😭

👀 SEE ALSO 👀

go read those too, iykyk ✨

Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

and that's the whole page, bestie!! this one's from OpenSSL version 3.5.9, dated 2026-09-29 — slay, ate, no crumbs, goodbye 💖✨🎀🦋

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