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- =pod
- =head1 NAME
- SSL_CTX_config, SSL_config - configure SSL_CTX or SSL structure
- =head1 SYNOPSIS
- #include <openssl/ssl.h>
- int SSL_CTX_config(SSL_CTX *ctx, const char *name);
- int SSL_config(SSL *s, const char *name);
- =head1 DESCRIPTION
- The functions SSL_CTX_config() and SSL_config() configure an B<SSL_CTX> or
- B<SSL> structure using the configuration B<name>.
- =head1 NOTES
- By calling SSL_CTX_config() or SSL_config() an application can perform many
- complex tasks based on the contents of the configuration file: greatly
- simplifying application configuration code. A degree of future proofing
- can also be achieved: an application can support configuration features
- in newer versions of OpenSSL automatically.
- A configuration file must have been previously loaded, for example using
- CONF_modules_load_file(). See L<config(5)> for details of the configuration
- file syntax.
- =head1 RETURN VALUES
- SSL_CTX_config() and SSL_config() return 1 for success or 0 if an error
- occurred.
- =head1 EXAMPLE
- If the file "config.cnf" contains the following:
- testapp = test_sect
- [test_sect]
- # list of configuration modules
- ssl_conf = ssl_sect
- [ssl_sect]
- server = server_section
- [server_section]
- RSA.Certificate = server-rsa.pem
- ECDSA.Certificate = server-ecdsa.pem
- Ciphers = ALL:!RC4
- An application could call:
- if (CONF_modules_load_file("config.cnf", "testapp", 0) <= 0) {
- fprintf(stderr, "Error processing config file\n");
- goto err;
- }
- ctx = SSL_CTX_new(TLS_server_method());
- if (SSL_CTX_config(ctx, "server") == 0) {
- fprintf(stderr, "Error configuring server.\n");
- goto err;
- }
- In this example two certificates and the cipher list are configured without
- the need for any additional application code.
- =head1 SEE ALSO
- L<config(5)>,
- L<SSL_CONF_cmd(3)>,
- L<CONF_modules_load_file(3)>
- =head1 HISTORY
- SSL_CTX_config() and SSL_config() were first added to OpenSSL 1.1.0
- =head1 COPYRIGHT
- Copyright 2015-2016 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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