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=pod
=head1 NAME
SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms
- initialize SSL library by registering algorithms
=head1 SYNOPSIS
#include <openssl/ssl.h>
int SSL_library_init(void);
#define OpenSSL_add_ssl_algorithms() SSL_library_init()
#define SSLeay_add_ssl_algorithms() SSL_library_init()
=head1 DESCRIPTION
SSL_library_init() registers the available SSL/TLS ciphers and digests.
OpenSSL_add_ssl_algorithms() and SSLeay_add_ssl_algorithms() are synonyms
for SSL_library_init().
=head1 NOTES
SSL_library_init() must be called before any other action takes place.
SSL_library_init() is not reentrant.
=head1 WARNING
SSL_library_init() adds ciphers and digests used directly and indirectly by
SSL/TLS.
=head1 EXAMPLES
A typical TLS/SSL application will start with the library initialization,
and provide readable error messages.
SSL_load_error_strings(); /* readable error messages */
SSL_library_init(); /* initialize library */
=head1 RETURN VALUES
SSL_library_init() always returns "1", so it is safe to discard the return
value.
=head1 NOTES
OpenSSL 0.9.8o and 1.0.0a and later added SHA2 algorithms to SSL_library_init().
Applications which need to use SHA2 in earlier versions of OpenSSL should call
OpenSSL_add_all_algorithms() as well.
=head1 SEE ALSO
L<ssl(3)|ssl(3)>, L<SSL_load_error_strings(3)|SSL_load_error_strings(3)>,
L<RAND_add(3)|RAND_add(3)>
=cut