Update information as a partial response to the post

[openssl.git] / doc / ssl / SSL_set_session.pod

diff --git a/doc/ssl/SSL_set_session.pod b/doc/ssl/SSL_set_session.pod
index b1162ba61a9c91b22aa31726eda07006ec63a8ea..5f54714ad86a633c4f0540357ffcb2593c17a174 100644 (file)
--- a/doc/ssl/SSL_set_session.pod
+++ b/doc/ssl/SSL_set_session.pod
@@ -2,25 +2,34 @@
 
 =head1 NAME
 
-SSL_set_session - Set an SSL session to be used during SSL connect
+SSL_set_session - set a TLS/SSL session to be used during TLS/SSL connect
 
 =head1 SYNOPSIS
 
  #include <openssl/ssl.h>
 
- int *SSL_set_session(SSL *ssl, SSL_SESSION *session);
+ int SSL_set_session(SSL *ssl, SSL_SESSION *session);
 
 =head1 DESCRIPTION
 
-SSL_set_session() sets B<session> to be used, when the SSL connection
-is to be established. SSL_set_session() is only useful for SSL clients.
+SSL_set_session() sets B<session> to be used when the TLS/SSL connection
+is to be established. SSL_set_session() is only useful for TLS/SSL clients.
 When the session is set, the reference count of B<session> is incremented
 by 1. If the session is not reused, the reference count is decremented
-again during SSL_connect().
+again during SSL_connect(). Whether the session was reused can be queried
+with the L<SSL_session_reused(3)|SSL_session_reused(3)> call.
 
 If there is already a session set inside B<ssl> (because it was set with
 SSL_set_session() before or because the same B<ssl> was already used for
-a connection) SSL_SESSION_free() will be called for that session.
+a connection), SSL_SESSION_free() will be called for that session.
+
+=head1 NOTES
+
+SSL_SESSION objects keep internal link information about the session cache
+list, when being inserted into one SSL_CTX object's session cache.
+One SSL_SESSION object, regardless of its reference count, must therefore
+only be used with one SSL_CTX object (and the SSL objects created
+from this SSL_CTX object).
 
 =head1 RETURN VALUES
 
@@ -30,7 +39,7 @@ The following return values can occur:
 
 =item 0
 
-The operation failed, check the error stack to find out the reason.
+The operation failed; check the error stack to find out the reason.
 
 =item 1
 
@@ -40,6 +49,9 @@ The operation succeeded.
 
 =head1 SEE ALSO
 
-L<ssl(3)|ssl(3)>, L<SSL_SESSION_free(3)|SSL_SESSION_free(3)>
+L<ssl(3)|ssl(3)>, L<SSL_SESSION_free(3)|SSL_SESSION_free(3)>,
+L<SSL_get_session(3)|SSL_get_session(3)>,
+L<SSL_session_reused(3)|SSL_session_reused(3)>,
+L<SSL_CTX_set_session_cache_mode(3)|SSL_CTX_set_session_cache_mode(3)>
 
 =cut