/usr/man2/cat.3/SSL_get_shared_ciphers.3.Z(/usr/man2/cat.3/SSL_get_shared_ciphers.3.Z)

NAME

       SSL_get_ciphers, SSL_get_cipher_list, SSL_get_shared_ciphers - get list
       of available SSL_CIPHERs

SYNOPSIS

        #include <openssl/ssl.h>

        STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *ssl);
        const char *SSL_get_cipher_list(const SSL *ssl, int priority);
        char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size);

DESCRIPTION

       SSL_get_ciphers() returns the stack of available SSL_CIPHERs for ssl,
       sorted by preference. If ssl is NULL or no ciphers are available, NULL
       is returned.

       SSL_get_cipher_list() returns a pointer to the name of the SSL_CIPHER
       listed for ssl with priority. If ssl is NULL, no ciphers are available,
       or there are less ciphers than priority available, NULL is returned.

       SSL_get_shared_ciphers() creates a colon separated and NUL terminated
       list of SSL_CIPHER names that are available in both the client and the
       server. buf is the buffer that should be populated with the list of
       names and size is the size of that buffer. A pointer to buf is returned
       on success or NULL on error. If the supplied buffer is not large enough
       to contain the complete list of names then a truncated list of names
       will be returned. Note that just because a ciphersuite is available
       (i.e. it is configured in the cipher list) and shared by both the
       client and the server it does not mean that it is enabled (for example
       some ciphers may not be usable by a server if there is not a suitable
       certificate configured). This function will return available shared
       ciphersuites whether or not they are enabled. This is a server side
       function only and must only be called after the completion of the ini-
       tial handshake.

NOTES

       The details of the ciphers obtained by SSL_get_ciphers() can be
       obtained using the SSL_CIPHER_get_name(3) family of functions.

       Call SSL_get_cipher_list() with priority starting from 0 to obtain the
       sorted list of available ciphers, until NULL is returned.

RETURN VALUES

       See DESCRIPTION

SEE ALSO

       ssl(3), SSL_CTX_set_cipher_list(3), SSL_CIPHER_get_name(3)

1.0.2t                            2019-09-10                SSL_get_ciphers(3)
See also SSL_get_cipher_list(3)
See also SSL_get_ciphers(3)