=pod

=head1 NAME

SSL_get1_builtin_sigalgs - get list of built-in signature algorithms

=head1 SYNOPSIS

 #include <openssl/tls1.h>

 char *SSL_get1_builtin_sigalgs(OSSL_LIB_CTX *libctx);

=head1 DESCRIPTION

Return the colon-separated list of built-in and available TLS signature
algorithms.
The string returned must be freed by the user using L<OPENSSL_free(3)>.

=head1 NOTES

The string may be empty (strlen==0) if none of the built-in TLS signature
algorithms can be activated, e.g., if suitable providers are missing.

=head1 RETURN VALUES

NULL may be returned if no memory could be allocated. Otherwise, a
newly allocated string is always returned but it may have strlen == 0.

=head1 HISTORY

This call was added in OpenSSL 3.4.

=head1 COPYRIGHT

Copyright 2000-2024 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
L<https://www.openssl.org/source/license.html>.

=cut
