'just did a cvs update and found that SSL_SESSION_id2sz in ssl_engine_vars.c has fewer parameters than required.
-Madhu Index: ssl_engine_vars.c =================================================================== RCS file: /home/cvspublic/httpd-2.0/modules/ssl/ssl_engine_vars.c,v retrieving revision 1.14 diff -u -r1.14 ssl_engine_vars.c --- ssl_engine_vars.c 12 Mar 2002 21:10:18 -0000 1.14 +++ ssl_engine_vars.c 13 Mar 2002 16:51:37 -0000 @@ -282,10 +282,13 @@ result = (char *)SSL_get_version(ssl); } else if (ssl != NULL && strcEQ(var, "SESSION_ID")) { + char buf[SSL_SESSION_ID_STRING_LEN]; + SSL_SESSION *pSession = SSL_get_session(ssl); result = apr_pstrdup(p, SSL_SESSION_id2sz( SSL_SESSION_get_session_id(pSession), - SSL_SESSION_get_session_id_length(pSession))); + SSL_SESSION_get_session_id_length(pSession), + buf, sizeof(buf))); } else if (ssl != NULL && strlen(var) >= 6 && strcEQn(var, "CIPHER", 6)) { result = ssl_var_lookup_ssl_cipher(p, c, var+6);