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=pod
=head1 NAME
CTLOG_STORE_new, CTLOG_STORE_free,
CTLOG_STORE_load_default_file, CTLOG_STORE_load_file -
Create and populate a Certificate Transparency log list
=head1 SYNOPSIS
#include <openssl/ct.h>
CTLOG_STORE *CTLOG_STORE_new(void);
void CTLOG_STORE_free(CTLOG_STORE *store);
int CTLOG_STORE_load_default_file(CTLOG_STORE *store);
int CTLOG_STORE_load_file(CTLOG_STORE *store, const char *file);
=head1 DESCRIPTION
A CTLOG_STORE is a container for a list of CTLOGs (Certificate Transparency
logs). The list can be loaded from one or more files and then searched by LogID
(see RFC 6962, Section 3.2, for the definition of a LogID).
CTLOG_STORE_new() creates an empty list of CT logs. This is then populated
by CTLOG_STORE_load_default_file() or CTLOG_STORE_load_file().
CTLOG_STORE_load_default_file() loads from the default file, which is named
"ct_log_list.cnf" in OPENSSLDIR (see the output of L<version>). This can be
overridden using an environment variable named "CTLOG_FILE".
CTLOG_STORE_load_file() loads from a caller-specified file path instead.
Both of these functions append any loaded CT logs to the CTLOG_STORE.
The expected format of the file is:
enabled_logs=foo,bar
[foo]
description = Log 1
key = <base64-encoded DER SubjectPublicKeyInfo here>
[bar]
description = Log 2
key = <base64-encoded DER SubjectPublicKeyInfo here>
Once a CTLOG_STORE is no longer required, it should be passed to
CTLOG_STORE_free(). This will delete all of the CTLOGs stored within, along
with the CTLOG_STORE itself.
=head1 NOTES
If there are any invalid CT logs in a file, they are skipped and the remaining
valid logs will still be added to the CTLOG_STORE. A CT log will be considered
invalid if it is missing a "key" or "description" field.
=head1 RETURN VALUES
Both B<CTLOG_STORE_load_default_file> and B<CTLOG_STORE_load_file> return 1 if
all CT logs in the file are successfully parsed and loaded, 0 otherwise.
=head1 SEE ALSO
L<ct(7)>,
L<CTLOG_STORE_get0_log_by_id(3)>,
L<SSL_CTX_set_ctlog_list_file(3)>
=head1 HISTORY
These functions were added in OpenSSL 1.1.0.
=head1 COPYRIGHT
Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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
L<https://www.openssl.org/source/license.html>.
=cut
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