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