Go to main content

man pages section 3: Extended Library Functions, Volume 1

Exit Print View

Updated: Wednesday, July 27, 2022
 
 

SSL_library_init (3openssl)

Name

SSL_library_init - SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms initialize SSL library by registering algorithms

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()

Description

OpenSSL                                             SSL_library_init(3openssl)



NAME
       SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms
       - initialize SSL library by registering algorithms

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()

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().


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+--------------------------+
       |ATTRIBUTE TYPE |     ATTRIBUTE VALUE      |
       +---------------+--------------------------+
       |Availability   | library/security/openssl |
       +---------------+--------------------------+
       |Stability      | Pass-through uncommitted |
       +---------------+--------------------------+

NOTES
       SSL_library_init() must be called before any other action takes place.
       SSL_library_init() is not reentrant.

       Source code for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at
       https://github.com/oracle/solaris-userland.  The original community
       source was downloaded from
       https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.

       Further information about this software can be found on the open source
       community website at https://www.openssl.org/.

WARNING
       SSL_library_init() adds ciphers and digests used directly and
       indirectly by SSL/TLS.

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 */

RETURN VALUES
       SSL_library_init() always returns "1", so it is safe to discard the
       return value.

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.

SEE ALSO
       ssl(3), SSL_load_error_strings(3), RAND_add(3)




1.0.2ze                           2022-05-03
                                                    SSL_library_init(3openssl)