SSL_session_reused(3ssl)

SSL_session_reused3ssl

Query whether a reused session was negotiated during handshake

Usage

 #include <openssl/ssl.h>
 int SSL_session_reused(const SSL *ssl);

Overview

Query, whether a reused session was negotiated during the handshake.

Notes

During the negotiation, a client can propose to reuse a session. The server then looks up the session in its cache. If both client and server agree on the session, it will be reused and a flag is being set that can be queried by the application.

Return values

The following return values can occur:

0

A new session was negotiated.

1

A session was reused.

Releases

13 releases since Debian 3.0 (Woody); the text changed 12 times.

  1. 3.0
  2. 3.1
  3. 4.0
  4. 5.0
  5. 6.0
  6. 7
  7. 8
  8. 9
  9. 10
  10. 11
  11. 12
  12. 13
  13. Arch

From openssl 3.6.5-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.