SSL_SESSION_GET_COMPRESS_ID(3) Library Functions Manual NAME SSL_SESSION_get_compress_id - get details about the compression associated with a session SYNOPSIS #include unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s); DESCRIPTION If compression has been negotiated for an ssl session, SSL_SESSION_get_compress_id() returns the id for the compression method, or 0 otherwise. The only built-in supported compression method is zlib, which has an id of 1. SEE ALSO ssl(3), SSL_get_session(3), SSL_SESSION_get_id(3), SSL_SESSION_get_protocol_version(3), SSL_SESSION_new(3) HISTORY SSL_SESSION_get_compress_id() first appeared in OpenSSL 1.0.1 and has been available since OpenBSD 5.3. Linux 6.8.2-arch2-1 March 23, 2018 Linux 6.8.2-arch2-1