void *lh_delete(_LHASH *lh, const void *data)
{
    unsigned long hash;
    LHASH_NODE *nn, **rn;
    void *ret;
    lh->error = 0;
    rn = getrn(lh, data, &hash);
    if (*rn == NULL) {
        lh->num_no_delete++;
        return (NULL);
    } else {
        nn = *rn;
        *rn = nn->next;
        ret = nn->data;
        OPENSSL_free(nn);
        lh->num_delete++;
    }
    lh->num_items--;
    if ((lh->num_nodes > MIN_NODES) &&
        (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
        contract(lh);
    return (ret);
}
['static int test_tlsafile(SSL_CTX *ctx, const char *basename,\n                         FILE *f, const char *path)\n{\n    char *line;\n    int testno = 0;\n    int ret = 1;\n    SSL *ssl;\n    while (ret > 0 && (line = read_to_eol(f)) != NULL) {\n        STACK_OF(X509) *chain;\n        int ntlsa;\n        int ncert;\n        int want;\n        int want_depth;\n        int off;\n        int i;\n        int ok;\n        int err;\n        int mdpth;\n        if (*line == \'\\0\' || *line == \'#\')\n            continue;\n        ++testno;\n        if (sscanf(line, "%d %d %d %d%n", &ntlsa, &ncert, &want, &want_depth, &off) != 4\n            || !allws(line + off)) {\n            fprintf(stderr, "Expected tlsa count, cert count and result"\n                    " at test %d of %s\\n", testno, path);\n            return 0;\n        }\n        if ((ssl = SSL_new(ctx)) == NULL)\n            return -1;\n        SSL_set_connect_state(ssl);\n        if (SSL_dane_enable(ssl, basename) <= 0) {\n            SSL_free(ssl);\n            return -1;\n        }\n        for (i = 0; i < ntlsa; ++i) {\n            if ((line = read_to_eol(f)) == NULL || !tlsa_import_rr(ssl, line)) {\n                SSL_free(ssl);\n                return 0;\n            }\n        }\n        ERR_clear_error();\n        chain = load_chain(f, ncert);\n        if (chain == NULL) {\n            SSL_free(ssl);\n            return -1;\n        }\n        ok = verify_chain(ssl, chain);\n        sk_X509_pop_free(chain, X509_free);\n        err = SSL_get_verify_result(ssl);\n        SSL_set_verify_result(ssl, X509_V_OK);\n        mdpth = SSL_get0_dane_authority(ssl, NULL, NULL);\n        SSL_set_verify_result(ssl, err);\n        SSL_free(ssl);\n        if (ok < 0) {\n            ret = 0;\n            fprintf(stderr, "verify_chain internal error in %s test %d\\n",\n                    path, testno);\n            print_errors();\n            continue;\n        }\n        if (err != want || (want == 0 && !ok)) {\n            ret = 0;\n            if (err != want) {\n                if (want == X509_V_OK)\n                    fprintf(stderr, "Verification failure in %s test %d: %d: %s\\n",\n                            path, testno, err, X509_verify_cert_error_string(err));\n                else\n                    fprintf(stderr, "Unexpected error in %s test %d: %d: wanted %d\\n",\n                            path, testno, err, want);\n            } else {\n                fprintf(stderr, "Verification failure in %s test %d: ok=0\\n",\n                        path, testno);\n            }\n            print_errors();\n            continue;\n        }\n        if (mdpth != want_depth) {\n            ret = 0;\n            fprintf(stderr, "Wrong match depth, in %s test %d: wanted %d, got: %d\\n",\n                    path, testno, want_depth, mdpth);\n        }\n        fprintf(stderr, "%s: test %d successful\\n", path, testno);\n    }\n    ERR_clear_error();\n    return ret;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n    SSL *s;\n    if (ctx == NULL) {\n        SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n        return (NULL);\n    }\n    if (ctx->method == NULL) {\n        SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n        return (NULL);\n    }\n    s = OPENSSL_zalloc(sizeof(*s));\n    if (s == NULL)\n        goto err;\n    RECORD_LAYER_init(&s->rlayer, s);\n    s->options = ctx->options;\n    s->min_proto_version = ctx->min_proto_version;\n    s->max_proto_version = ctx->max_proto_version;\n    s->mode = ctx->mode;\n    s->max_cert_list = ctx->max_cert_list;\n    s->references = 1;\n    s->cert = ssl_cert_dup(ctx->cert);\n    if (s->cert == NULL)\n        goto err;\n    RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n    s->msg_callback = ctx->msg_callback;\n    s->msg_callback_arg = ctx->msg_callback_arg;\n    s->verify_mode = ctx->verify_mode;\n    s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n    s->sid_ctx_length = ctx->sid_ctx_length;\n    OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\n    memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n    s->verify_callback = ctx->default_verify_callback;\n    s->generate_session_id = ctx->generate_session_id;\n    s->param = X509_VERIFY_PARAM_new();\n    if (s->param == NULL)\n        goto err;\n    X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n    s->quiet_shutdown = ctx->quiet_shutdown;\n    s->max_send_fragment = ctx->max_send_fragment;\n    CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);\n    s->ctx = ctx;\n    s->tlsext_debug_cb = 0;\n    s->tlsext_debug_arg = NULL;\n    s->tlsext_ticket_expected = 0;\n    s->tlsext_status_type = -1;\n    s->tlsext_status_expected = 0;\n    s->tlsext_ocsp_ids = NULL;\n    s->tlsext_ocsp_exts = NULL;\n    s->tlsext_ocsp_resp = NULL;\n    s->tlsext_ocsp_resplen = -1;\n    CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);\n    s->initial_ctx = ctx;\n# ifndef OPENSSL_NO_EC\n    if (ctx->tlsext_ecpointformatlist) {\n        s->tlsext_ecpointformatlist =\n            OPENSSL_memdup(ctx->tlsext_ecpointformatlist,\n                           ctx->tlsext_ecpointformatlist_length);\n        if (!s->tlsext_ecpointformatlist)\n            goto err;\n        s->tlsext_ecpointformatlist_length =\n            ctx->tlsext_ecpointformatlist_length;\n    }\n    if (ctx->tlsext_ellipticcurvelist) {\n        s->tlsext_ellipticcurvelist =\n            OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,\n                           ctx->tlsext_ellipticcurvelist_length);\n        if (!s->tlsext_ellipticcurvelist)\n            goto err;\n        s->tlsext_ellipticcurvelist_length =\n            ctx->tlsext_ellipticcurvelist_length;\n    }\n# endif\n# ifndef OPENSSL_NO_NEXTPROTONEG\n    s->next_proto_negotiated = NULL;\n# endif\n    if (s->ctx->alpn_client_proto_list) {\n        s->alpn_client_proto_list =\n            OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);\n        if (s->alpn_client_proto_list == NULL)\n            goto err;\n        memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,\n               s->ctx->alpn_client_proto_list_len);\n        s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;\n    }\n    s->verified_chain = NULL;\n    s->verify_result = X509_V_OK;\n    s->default_passwd_callback = ctx->default_passwd_callback;\n    s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n    s->method = ctx->method;\n    if (!s->method->ssl_new(s))\n        goto err;\n    s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n    if (!SSL_clear(s))\n        goto err;\n    CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n#ifndef OPENSSL_NO_PSK\n    s->psk_client_callback = ctx->psk_client_callback;\n    s->psk_server_callback = ctx->psk_server_callback;\n#endif\n    s->job = NULL;\n    return (s);\n err:\n    SSL_free(s);\n    SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n    return (NULL);\n}', 'void SSL_free(SSL *s)\n{\n    int i;\n    if (s == NULL)\n        return;\n    i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);\n#ifdef REF_PRINT\n    REF_PRINT("SSL", s);\n#endif\n    if (i > 0)\n        return;\n#ifdef REF_CHECK\n    if (i < 0) {\n        fprintf(stderr, "SSL_free, bad reference count\\n");\n        abort();\n    }\n#endif\n    X509_VERIFY_PARAM_free(s->param);\n    dane_final(&s->dane);\n    CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n    if (s->bbio != NULL) {\n        if (s->bbio == s->wbio) {\n            s->wbio = BIO_pop(s->wbio);\n        }\n        BIO_free(s->bbio);\n        s->bbio = NULL;\n    }\n    BIO_free_all(s->rbio);\n    if (s->wbio != s->rbio)\n        BIO_free_all(s->wbio);\n    BUF_MEM_free(s->init_buf);\n    sk_SSL_CIPHER_free(s->cipher_list);\n    sk_SSL_CIPHER_free(s->cipher_list_by_id);\n    if (s->session != NULL) {\n        ssl_clear_bad_session(s);\n        SSL_SESSION_free(s->session);\n    }\n    clear_ciphers(s);\n    ssl_cert_free(s->cert);\n    OPENSSL_free(s->tlsext_hostname);\n    SSL_CTX_free(s->initial_ctx);\n#ifndef OPENSSL_NO_EC\n    OPENSSL_free(s->tlsext_ecpointformatlist);\n    OPENSSL_free(s->tlsext_ellipticcurvelist);\n#endif\n    sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);\n    sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);\n    OPENSSL_free(s->tlsext_ocsp_resp);\n    OPENSSL_free(s->alpn_client_proto_list);\n    sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);\n    sk_X509_pop_free(s->verified_chain, X509_free);\n    if (s->method != NULL)\n        s->method->ssl_free(s);\n    RECORD_LAYER_release(&s->rlayer);\n    SSL_CTX_free(s->ctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n    OPENSSL_free(s->next_proto_negotiated);\n#endif\n#ifndef OPENSSL_NO_SRTP\n    sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n    OPENSSL_free(s);\n}', 'int ssl_clear_bad_session(SSL *s)\n{\n    if ((s->session != NULL) &&\n        !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n        !(SSL_in_init(s) || SSL_in_before(s))) {\n        SSL_CTX_remove_session(s->ctx, s->session);\n        return (1);\n    } else\n        return (0);\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n    return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n    SSL_SESSION *r;\n    int ret = 0;\n    if ((c != NULL) && (c->session_id_length != 0)) {\n        if (lck)\n            CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n        if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n            ret = 1;\n            r = lh_SSL_SESSION_delete(ctx->sessions, c);\n            SSL_SESSION_list_remove(ctx, c);\n        }\n        if (lck)\n            CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n        if (ret) {\n            r->not_resumable = 1;\n            if (ctx->remove_session_cb != NULL)\n                ctx->remove_session_cb(ctx, r);\n            SSL_SESSION_free(r);\n        }\n    } else\n        ret = 0;\n    return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *lh_delete(_LHASH *lh, const void *data)\n{\n    unsigned long hash;\n    LHASH_NODE *nn, **rn;\n    void *ret;\n    lh->error = 0;\n    rn = getrn(lh, data, &hash);\n    if (*rn == NULL) {\n        lh->num_no_delete++;\n        return (NULL);\n    } else {\n        nn = *rn;\n        *rn = nn->next;\n        ret = nn->data;\n        OPENSSL_free(nn);\n        lh->num_delete++;\n    }\n    lh->num_items--;\n    if ((lh->num_nodes > MIN_NODES) &&\n        (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n        contract(lh);\n    return (ret);\n}']