Cryptography and SSL/TLS Toolkit



SSL_new, SSL_up_ref - create a new SSL structure for a connection


 #include <openssl/ssl.h>

 SSL *SSL_new(SSL_CTX *ctx);
 int SSL_up_ref(SSL *s);


SSL_new() creates a new SSL structure which is needed to hold the data for a TLS/SSL connection. The new structure inherits the settings of the underlying context ctx: connection method, options, verification settings, timeout settings. An SSL structure is reference counted. Creating an SSL structure for the first time increments the reference count. Freeing it (using SSL_free) decrements it. When the reference count drops to zero, any memory or resources allocated to the SSL structure are freed. SSL_up_ref() increments the reference count for an existing SSL structure.


The following return values can occur:


The creation of a new SSL structure failed. Check the error stack to find out the reason.

Pointer to an SSL structure

The return value points to an allocated SSL structure.

SSL_up_ref() returns 1 for success and 0 for failure.


SSL_free(3), SSL_clear(3), SSL_CTX_set_options(3), SSL_get_SSL_CTX(3), ssl(3)

Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at