SSL_get1_builtin_sigalgs - get list of built-in signature algorithms

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       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>.

3.5.0                                              2025-06-04                     SSL_GET1_BUILTIN_SIGALGS(3SSL)

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

       This function was added in OpenSSL 3.4.

       SSL_get1_builtin_sigalgs - get list of built-in signature algorithms

       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.

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

        #include <openssl/tls1.h>

        char *SSL_get1_builtin_sigalgs(OSSL_LIB_CTX *libctx);