SSL_SESSION_FREE - Online Linux Manual PageSection : 3ossl
Updated : 2022-03-15
Source : 3.0.2
Note : OpenSSL
NAMESSL_SESSION_new, SSL_SESSION_dup, SSL_SESSION_up_ref, SSL_SESSION_free − create, free and manage SSL_SESSION structures
SYNOPSIS​ #include <openssl/ssl.h> ​ ​ SSL_SESSION *SSL_SESSION_new(void); ​ SSL_SESSION *SSL_SESSION_dup(const SSL_SESSION *src); ​ int SSL_SESSION_up_ref(SSL_SESSION *ses); ​ void SSL_SESSION_free(SSL_SESSION *session);
DESCRIPTION​SSL_SESSION_new() creates a new SSL_SESSION structure and returns a pointer to it. ​SSL_SESSION_dup() copies the contents of the SSL_SESSION structure in src and returns a pointer to it. ​SSL_SESSION_up_ref() increments the reference count on the given SSL_SESSION structure. ​SSL_SESSION_free() decrements the reference count of session and removes the SSL_SESSION structure pointed to by session and frees up the allocated memory, if the reference count has reached 0. If session is NULL nothing is done.
NOTES​SSL_SESSION objects are allocated, when a TLS/SSL handshake operation is successfully completed. Depending on the settings, see ​SSL_CTX_set_session_cache_mode (3), the SSL_SESSION objects are internally referenced by the SSL_CTX and linked into its session cache. SSL objects may be using the SSL_SESSION object; as a session may be reused, several SSL objects may be using one SSL_SESSION object at the same time. It is therefore crucial to keep the reference count (usage information) correct and not delete a SSL_SESSION object that is still used, as this may lead to program failures due to dangling pointers. These failures may also appear delayed, e.g. when an SSL_SESSION object was completely freed as the reference count incorrectly became 0, but it is still referenced in the internal session cache and the cache list is processed during a ​SSL_CTX_flush_sessions (3) operation. ​SSL_SESSION_free() must only be called for SSL_SESSION objects, for which the reference count was explicitly incremented (e.g. by calling SSL_get1_session(), see SSL_get_session (3)) or when the SSL_SESSION object was generated outside a TLS handshake operation, e.g. by using d2i_SSL_SESSION (3). It must not be called on other SSL_SESSION objects, as this would cause incorrect reference counts and therefore program failures.
RETURN VALUESSSL_SESSION_new returns a pointer to the newly allocated SSL_SESSION structure or NULL on error. SSL_SESSION_up_ref returns 1 on success or 0 on error.
SEE ALSO​ssl (7), SSL_get_session (3), ​SSL_CTX_set_session_cache_mode (3), ​SSL_CTX_flush_sessions (3), ​d2i_SSL_SESSION (3)
HISTORYThe SSL_SESSION_dup() function was added in OpenSSL 1.1.1.
COPYRIGHTCopyright 2000−2016 The OpenSSL Project Authors. All Rights Reserved. Licensed under the Apache License 2.0 (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 <https://www.openssl.org/source/license.html>. 0
Johanes Gumabo
Data Size   :   10,265 byte
man-S___SL_SESSION_dup.3osslBuild   :   2024-12-05, 20:55   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   2 / 182,228
Visitor ID   :     :  
Visitor IP   :   18.117.168.40   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36
Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .
If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.
ERROR : Need New Coding :         (parse_manual_page_|249|S___SL_SESSION_dup.3ossl|36/37|el══─{─══.|.el══─{─══. ds -- \|\(em\| )         (htmlprn|149|S___SL_SESSION_dup.3ossl|36/37|.el══─{─══. ds --  —  |.el══─{─══. ds -- \|\(em\| )         (parse_manual_page_|249|S___SL_SESSION_dup.3ossl|43|br══─}─══|'br══─}─══ )         (htmlprn|149|S___SL_SESSION_dup.3ossl|43|'br══─}─══ |'br══─}─══ )