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.\" ========================================================================
.\"
.IX Title "CTLOG_STORE_new 3"
.TH CTLOG_STORE_new 3 "2023-05-07" "3.0.9" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
CTLOG_STORE_new_ex,
CTLOG_STORE_new, CTLOG_STORE_free,
CTLOG_STORE_load_default_file, CTLOG_STORE_load_file \-
Create and populate a Certificate Transparency log list
.SH "LIBRARY"
libcrypto, -lcrypto
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ct.h>
\&
\& CTLOG_STORE *CTLOG_STORE_new_ex(OSSL_LIB_CTX *libctx, const char *propq);
\& 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);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A \s-1CTLOG_STORE\s0 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 \s-1RFC 6962,\s0 Section 3.2, for the definition of a LogID).
.PP
\&\fBCTLOG_STORE_new_ex()\fR creates an empty list of \s-1CT\s0 logs associated with
the library context \fIlibctx\fR and the property query string \fIpropq\fR.
.PP
\&\fBCTLOG_STORE_new()\fR does the same thing as \fBCTLOG_STORE_new_ex()\fR but with
the default library context and property query string.
.PP
The \s-1CTLOG_STORE\s0 is then populated by \fBCTLOG_STORE_load_default_file()\fR or
\&\fBCTLOG_STORE_load_file()\fR. \fBCTLOG_STORE_load_default_file()\fR loads from the default
file, which is named \fIct_log_list.cnf\fR in \s-1OPENSSLDIR\s0 (see the output of
\&\fBopenssl\-version\fR\|(1)). This can be overridden using an environment variable
named \fB\s-1CTLOG_FILE\s0\fR. \fBCTLOG_STORE_load_file()\fR loads from a caller-specified file
path instead. Both of these functions append any loaded \s-1CT\s0 logs to the
\&\s-1CTLOG_STORE.\s0
.PP
The expected format of the file is:
.PP
.Vb 1
\& enabled_logs=foo,bar
\&
\& [foo]
\& description = Log 1
\& key = <base64\-encoded DER SubjectPublicKeyInfo here>
\&
\& [bar]
\& description = Log 2
\& key = <base64\-encoded DER SubjectPublicKeyInfo here>
.Ve
.PP
Once a \s-1CTLOG_STORE\s0 is no longer required, it should be passed to
\&\fBCTLOG_STORE_free()\fR. This will delete all of the CTLOGs stored within, along
with the \s-1CTLOG_STORE\s0 itself.
.SH "NOTES"
.IX Header "NOTES"
If there are any invalid \s-1CT\s0 logs in a file, they are skipped and the remaining
valid logs will still be added to the \s-1CTLOG_STORE. A CT\s0 log will be considered
invalid if it is missing a \*(L"key\*(R" or \*(L"description\*(R" field.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
Both \fBCTLOG_STORE_load_default_file\fR and \fBCTLOG_STORE_load_file\fR return 1 if
all \s-1CT\s0 logs in the file are successfully parsed and loaded, 0 otherwise.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBct\fR\|(7),
\&\fBCTLOG_STORE_get0_log_by_id\fR\|(3),
\&\fBSSL_CTX_set_ctlog_list_file\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
CTLOG_STORE_new_ex was added in OpenSSL 3.0. All other functions were
added in OpenSSL 1.1.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2016\-2020 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.