1=pod 2 3=head1 NAME 4 5SSL_free - free an allocated SSL structure 6 7=head1 SYNOPSIS 8 9 #include <openssl/ssl.h> 10 11 void SSL_free(SSL *ssl); 12 13=head1 DESCRIPTION 14 15SSL_free() decrements the reference count of B<ssl>, and removes the SSL 16structure pointed to by B<ssl> and frees up the allocated memory if the 17reference count has reached 0. 18 19=head1 NOTES 20 21SSL_free() also calls the free()ing procedures for indirectly affected items, if 22applicable: the buffering BIO, the read and write BIOs, 23cipher lists specially created for this B<ssl>, the B<SSL_SESSION>. 24Do not explicitly free these indirectly freed up items before or after 25calling SSL_free(), as trying to free things twice may lead to program 26failure. 27 28The ssl session has reference counts from two users: the SSL object, for 29which the reference count is removed by SSL_free() and the internal 30session cache. If the session is considered bad, because 31L<SSL_shutdown(3)|SSL_shutdown(3)> was not called for the connection 32and L<SSL_set_shutdown(3)|SSL_set_shutdown(3)> was not used to set the 33SSL_SENT_SHUTDOWN state, the session will also be removed 34from the session cache as required by RFC2246. 35 36=head1 RETURN VALUES 37 38SSL_free() does not provide diagnostic information. 39 40L<SSL_new(3)|SSL_new(3)>, L<SSL_clear(3)|SSL_clear(3)>, 41L<SSL_shutdown(3)|SSL_shutdown(3)>, L<SSL_set_shutdown(3)|SSL_set_shutdown(3)>, 42L<ssl(3)|ssl(3)> 43 44=cut 45