-// PARA_INFO_LOG("status %d\n", pcd->status);
- t->ret = 1;
- if (pcd->fd < 0)
- return;
- if (!pcd->check_r && !pcd->check_w)
- return;
- if (pcd->check_r && !FD_ISSET(pcd->fd, &s->rfds))
- return;
- if (pcd->check_w && !FD_ISSET(pcd->fd, &s->wfds))
- return;
- switch (pcd->status) {
- case CL_CONNECTED: /* receive welcome message */
- t->ret = client_recv_buffer(pcd);
- if (t->ret > 0)
- pcd->status = CL_RECEIVED_WELCOME;
- return;
- case CL_RECEIVED_WELCOME: /* send auth command */
- sprintf(pcd->buf, "auth %s%s", pcd->conf.plain_given?
- "" : "rc4 ", pcd->user);
- PARA_INFO_LOG("--> %s\n", pcd->buf);
- t->ret = send_buffer(pcd->fd, pcd->buf);
- if (t->ret >= 0)
- pcd->status = CL_SENT_AUTH;
- return;
- case CL_SENT_AUTH: /* receive challenge number */
- pcd->loaded = 0;
- t->ret = client_recv_buffer(pcd);
- if (t->ret < 0)
- return;
- if (t->ret != 64) {
- t->ret = -E_INVALID_CHALLENGE;
- PARA_ERROR_LOG("received the following: %s\n", pcd->buf);
- return;
- }
- PARA_INFO_LOG("%s", "<-- [challenge]\n");
- /* decrypt challenge number */
- t->ret = para_decrypt_challenge(pcd->key_file, &pcd->challenge_nr,
- (unsigned char *) pcd->buf, 64);
- if (t->ret > 0)
- pcd->status = CL_RECEIVED_CHALLENGE;
- return;
- case CL_RECEIVED_CHALLENGE: /* send decrypted challenge */
- PARA_INFO_LOG("--> %lu\n", pcd->challenge_nr);
- t->ret = send_va_buffer(pcd->fd, "%s%lu", CHALLENGE_RESPONSE_MSG,
- pcd->challenge_nr);
- if (t->ret > 0)
- pcd->status = CL_SENT_CH_RESPONSE;
- return;
- case CL_SENT_CH_RESPONSE: /* read server response */
- {
- size_t bytes_received;
- unsigned char rc4_buf[2 * RC4_KEY_LEN] = "";
- pcd->loaded = 0;
- t->ret = client_recv_buffer(pcd);
- if (t->ret < 0)
- return;
- bytes_received = t->ret;
- PARA_DEBUG_LOG("++++ server info ++++\n%s\n++++ end of server "
- "info ++++\n", pcd->buf);
- /* check if server has sent "Proceed" message */
- t->ret = -E_CLIENT_AUTH;
- if (!strstr(pcd->buf, PROCEED_MSG))
- return;
- t->ret = 1;
- pcd->status = CL_RECEIVED_PROCEED;
- if (bytes_received < PROCEED_MSG_LEN + 32)
- return;
- PARA_INFO_LOG("%s", "decrypting session key\n");
- t->ret = para_decrypt_buffer(pcd->key_file, rc4_buf,
- (unsigned char *)pcd->buf + PROCEED_MSG_LEN + 1,
- bytes_received - PROCEED_MSG_LEN - 1);
- if (t->ret < 0)
- return;
- RC4_set_key(&pcd->rc4_send_key, RC4_KEY_LEN, rc4_buf);
- RC4_set_key(&pcd->rc4_recv_key, RC4_KEY_LEN, rc4_buf + RC4_KEY_LEN);
- enable_crypt(pcd->fd, rc4_recv, rc4_send, pcd);
- }
- case CL_RECEIVED_PROCEED: /* concat args and send command */
- {
- int i;
- char *command = NULL;
- for (i = 0; i < pcd->conf.inputs_num; i++) {
- char *tmp = command;
- command = make_message("%s\n%s", command?
- command : "", pcd->conf.inputs[i]);
- free(tmp);
- }
- command = para_strcat(command, EOC_MSG "\n");
- PARA_DEBUG_LOG("--> %s\n", command);
- t->ret = send_buffer(pcd->fd, command);
- free(command);
- if (t->ret > 0)
- pcd->status = CL_SENT_COMMAND;
- return;
+ ret = lls(lls_parse(argc, argv, cmd, &lpr, &errctx));
+ if (ret < 0)
+ goto out;
+ version_handle_flag("client", CLIENT_OPT_GIVEN(VERSION, lpr));
+ handle_help_flag(lpr);
+
+ ret = lsu_merge_config_file_options(CLIENT_OPT_STRING_VAL(CONFIG_FILE, lpr),
+ "client.conf", &lpr, cmd, client_suite, 0U /* default flags */);
+ if (ret < 0)
+ goto out;
+ /* success */
+ ll = CLIENT_OPT_UINT32_VAL(LOGLEVEL, lpr);
+ if (loglevel)
+ *loglevel = ll;
+ user = CLIENT_OPT_GIVEN(USER, lpr)?
+ para_strdup(CLIENT_OPT_STRING_VAL(USER, lpr)) : para_logname();
+
+ if (CLIENT_OPT_GIVEN(KEY_FILE, lpr))
+ kf = para_strdup(CLIENT_OPT_STRING_VAL(KEY_FILE, lpr));
+ else {
+ kf = make_message("%s/.paraslash/key.%s", home, user);
+ if (!file_exists(kf)) {
+ free(kf);
+ kf = make_message("%s/.ssh/id_rsa", home);