/*
- * Copyright (C) 1997-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2011 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
-/** \file client_common.c common functions of para_client and para_audiod */
+/** \file client_common.c Common functions of para_client and para_audiod. */
+#include <regex.h>
#include <sys/types.h>
-#include <dirent.h>
#include "para.h"
#include "error.h"
#include "sched.h"
#include "client.cmdline.h"
#include "crypt.h"
-#include "rc4.h"
#include "net.h"
#include "fd.h"
#include "string.h"
#include "client.cmdline.h"
#include "client.h"
+#include "buffer_tree.h"
+#include "version.h"
-/*
- * rc4 encrypt data before sending
- *
- * \param len the number of bytes to encrypt
- * \param indata pointer to the input data of length \a len to be encrypted
- * \param outdata pointer that holds the encrypted data after return
- * \param private_data pointer to the private client data containing
- * the rc4 key
- * */
-static void rc4_send(unsigned long len, const unsigned char *indata,
- unsigned char *outdata, void *private_data)
-{
- struct private_client_data *pcd = private_data;
- RC4(&pcd->rc4_send_key, len, indata, outdata);
-}
-
-/*
- * rc4 decrypt received data
- *
- * \param len the number of bytes to decrypt
- * \param indata pointer to the input data of length \a len
- * \param outdata pointer that holds the decrypted data after return
- * \param private_data pointer to the private client data containing
- * the rc4 key
- * */
-static void rc4_recv(unsigned long len, const unsigned char *indata,
- unsigned char *outdata, void *private_data)
-{
- struct private_client_data *pcd = private_data;
- RC4(&pcd->rc4_recv_key, len, indata, outdata);
-}
+/** The size of the receiving buffer. */
+#define CLIENT_BUFSIZE 4000
/**
- * close the connection to para_server and free all resources
+ * Close the connection to para_server and free all resources.
*
- * \param pcd pointer to the client data
+ * \param ct Pointer to the client data.
*
* \sa client_open.
- * */
-void client_close(struct private_client_data *pcd)
-{
- if (!pcd)
- return;
- if (pcd->fd >= 0) {
- disable_crypt(pcd->fd);
- close(pcd->fd);
- }
- free(pcd->user);
- free(pcd->config_file);
- free(pcd->key_file);
- client_cmdline_parser_free(&pcd->conf);
- free(pcd);
-}
-
-static int client_connect(struct private_client_data *pcd)
-{
- int ret;
-
- pcd->fd = -1;
- ret = makesock(AF_UNSPEC, IPPROTO_TCP, 0, pcd->conf.hostname_arg,
- pcd->conf.server_port_arg);
- if (ret < 0)
- return ret;
- pcd->fd = ret;
- pcd->status = CL_CONNECTED;
- ret = mark_fd_nonblocking(pcd->fd);
- if (ret < 0)
- goto err_out;
- pcd->task.pre_select = client_pre_select;
- pcd->task.post_select = client_post_select;
- pcd->task.private_data = pcd;
- sprintf(pcd->task.status, "client");
- register_task(&pcd->task);
- return 1;
-err_out:
- close(pcd->fd);
- pcd->fd = -1;
- return ret;
-}
-
-/**
- * open connection to para_server
- *
- * \param argc usual argument count
- * \param argv usual argument vector
- * \param pcd_ptr points to dynamically allocated and initialized private client data
- * upon successful return
- *
- * Check the command line options given by \a argc and argv, set default values
- * for user name and rsa key file, read further option from the config file.
- * Finally, establish a connection to para_server.
- *
- * \return Positive on success, negative on errors.
*/
-int client_open(int argc, char *argv[], struct private_client_data **pcd_ptr)
+void client_close(struct client_task *ct)
{
- char *home = para_homedir();
- struct stat statbuf;
- int ret;
- struct private_client_data *pcd =
- para_calloc(sizeof(struct private_client_data));
-
- *pcd_ptr = pcd;
- pcd->fd = -1;
- ret = client_cmdline_parser(argc, argv, &pcd->conf);
- HANDLE_VERSION_FLAG("client", pcd->conf);
- ret = -E_CLIENT_SYNTAX;
- if (!pcd->conf.inputs_num)
- goto out;
- pcd->user = pcd->conf.user_given?
- para_strdup(pcd->conf.user_arg) : para_logname();
-
- pcd->key_file = pcd->conf.key_file_given?
- para_strdup(pcd->conf.key_file_arg) :
- make_message("%s/.paraslash/key.%s", home, pcd->user);
-
- pcd->config_file = pcd->conf.config_file_given?
- para_strdup(pcd->conf.config_file_arg) :
- make_message("%s/.paraslash/client.conf", home);
- ret = stat(pcd->config_file, &statbuf);
- if (ret && pcd->conf.config_file_given) {
- ret = -E_NO_CONFIG;
- goto out;
- }
- if (!ret) {
- struct client_cmdline_parser_params params = {
- .override = 0,
- .initialize = 0,
- .check_required = 0,
- .check_ambiguity = 0
- };
- client_cmdline_parser_config_file(pcd->config_file,
- &pcd->conf, ¶ms);
- }
- ret = 1;
- PARA_INFO_LOG("loglevel: %d\n", pcd->conf.loglevel_arg);
- PARA_INFO_LOG("config_file: %s\n", pcd->config_file);
- PARA_INFO_LOG("key_file: %s\n", pcd->key_file);
- PARA_NOTICE_LOG("connecting %s:%d\n", pcd->conf.hostname_arg,
- pcd->conf.server_port_arg);
- ret = client_connect(pcd);
-out:
- free(home);
- if (ret < 0) {
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
- client_close(pcd);
- *pcd_ptr = NULL;
- }
- return ret;
+ if (!ct)
+ return;
+ if (ct->scc.fd >= 0)
+ close(ct->scc.fd);
+ sc_free(ct->scc.recv);
+ sc_free(ct->scc.send);
+ free(ct->user);
+ free(ct->config_file);
+ free(ct->key_file);
+ client_cmdline_parser_free(&ct->conf);
+ free(ct);
}
/**
- * the preselect hook for server commands
+ * The preselect hook for server commands.
*
- * \param s pointer to the scheduler
- * \param t pointer to the task struct for this command
+ * \param s Pointer to the scheduler.
+ * \param t Pointer to the task struct for this command.
*
* The task pointer must contain a pointer to the initialized client data
* structure as it is returned by client_open().
* This function checks the state of the connection and adds the file descriptor
* of the connection to the read or write fd set of \a s accordingly.
*
- * \sa register_task() client_open(), struct sched, struct task
+ * \sa register_task() client_open(), struct sched, struct task.
*/
-void client_pre_select(struct sched *s, struct task *t)
+static void client_pre_select(struct sched *s, struct task *t)
{
- struct private_client_data *pcd = t->private_data;
+ int ret;
+ struct client_task *ct = container_of(t, struct client_task, task);
+ struct btr_node *btrn = ct->btrn;
- t->ret = 1;
- pcd->check_r = 0;
- pcd->check_w = 0;
- if (pcd->fd < 0)
+ if (ct->scc.fd < 0)
return;
- switch (pcd->status) {
+ switch (ct->status) {
case CL_CONNECTED:
case CL_SENT_AUTH:
case CL_SENT_CH_RESPONSE:
case CL_SENT_COMMAND:
- para_fd_set(pcd->fd, &s->rfds, &s->max_fileno);
- pcd->check_r = 1;
+ para_fd_set(ct->scc.fd, &s->rfds, &s->max_fileno);
return;
case CL_RECEIVED_WELCOME:
- case CL_RECEIVED_CHALLENGE:
case CL_RECEIVED_PROCEED:
- para_fd_set(pcd->fd, &s->wfds, &s->max_fileno);
- pcd->check_w = 1;
+ para_fd_set(ct->scc.fd, &s->wfds, &s->max_fileno);
return;
case CL_RECEIVING:
- if (pcd->loaded < CLIENT_BUFSIZE - 1) {
- para_fd_set(pcd->fd, &s->rfds, &s->max_fileno);
- pcd->check_r = 1;
+ ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
+ if (ret != 0) {
+ if (ret < 0)
+ sched_min_delay(s);
+ else
+ para_fd_set(ct->scc.fd, &s->rfds,
+ &s->max_fileno);
}
return;
case CL_SENDING:
- if (*pcd->in_loaded) {
- PARA_INFO_LOG("loaded: %zd\n", *pcd->in_loaded);
- para_fd_set(pcd->fd, &s->wfds, &s->max_fileno);
- pcd->check_w = 1;
- } else {
- if (*pcd->in_eof) {
- t->ret = -E_INPUT_EOF;
- s->timeout.tv_sec = 0;
- s->timeout.tv_usec = 1;
- }
+ ret = btr_node_status(btrn, 0, BTR_NT_LEAF);
+ if (ret != 0) {
+ if (ret < 0)
+ sched_min_delay(s);
+ else
+ para_fd_set(ct->scc.fd, &s->wfds,
+ &s->max_fileno);
}
return;
}
}
-static ssize_t client_recv_buffer(struct private_client_data *pcd)
+static int client_recv_buffer(struct client_task *ct, fd_set *rfds,
+ char *buf, size_t sz, size_t *n)
{
- ssize_t ret = recv_buffer(pcd->fd, pcd->buf + pcd->loaded,
- CLIENT_BUFSIZE - pcd->loaded);
- if (!ret)
- return -E_SERVER_EOF;
- if (ret > 0)
- pcd->loaded += ret;
- return ret;
+ int ret;
+
+ if (ct->status < CL_SENT_CH_RESPONSE)
+ return read_nonblock(ct->scc.fd, buf, sz, rfds, n);
+ *n = 0;
+ ret = sc_recv_buffer(&ct->scc, buf, sz);
+ /*
+ * sc_recv_buffer is used with blocking fds elsewhere, so it
+ * does not use the nonblock-API. Therefore we need to
+ * check for EOF and EAGAIN.
+ */
+ if (ret == 0)
+ return -E_SERVER_EOF;
+ if (ret == -ERRNO_TO_PARA_ERROR(EAGAIN))
+ return 0;
+ if (ret < 0)
+ return ret;
+ *n = ret;
+ return 0;
}
/**
- * the post select hook for client commands
+ * The post select hook for client commands.
*
- * \param s pointer to the scheduler
- * \param t pointer to the task struct for this command
+ * \param s Pointer to the scheduler.
+ * \param t Pointer to the task struct for this command.
*
* Depending on the current state of the connection and the status of the read
* and write fd sets of \a s, this function performs the necessary steps to
- * authenticate the connection, to send the command given by \a
- * t->private_data and to receive para_server's output, if any.
+ * authenticate the connection, to send the command given by \a t->private_data
+ * and to receive para_server's output, if any.
*
- * \sa struct sched, struct task
+ * \sa struct sched, struct task.
*/
-void client_post_select(struct sched *s, struct task *t)
+static void client_post_select(struct sched *s, struct task *t)
{
- struct private_client_data *pcd = t->private_data;
+ struct client_task *ct = container_of(t, struct client_task, task);
+ struct btr_node *btrn = ct->btrn;
+ int ret = 0;
+ size_t n;
+ char buf[CLIENT_BUFSIZE];
-// 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))
+ t->error = 0;
+ if (ct->scc.fd < 0)
return;
- if (pcd->check_w && !FD_ISSET(pcd->fd, &s->wfds))
- return;
- switch (pcd->status) {
+ switch (ct->status) {
case CL_CONNECTED: /* receive welcome message */
- t->ret = client_recv_buffer(pcd);
- if (t->ret > 0)
- pcd->status = CL_RECEIVED_WELCOME;
+ ret = client_recv_buffer(ct, &s->rfds, buf, sizeof(buf), &n);
+ if (ret < 0 || n == 0)
+ goto out;
+ ct->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)
+ sprintf(buf, AUTH_REQUEST_MSG "%s", ct->user);
+ PARA_INFO_LOG("--> %s\n", buf);
+ if (!FD_ISSET(ct->scc.fd, &s->wfds))
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;
+ ret = send_buffer(ct->scc.fd, buf);
+ if (ret < 0)
+ goto out;
+ ct->status = CL_SENT_AUTH;
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;
+ case CL_SENT_AUTH:
+ /*
+ * Receive challenge and session keys, decrypt the challenge and
+ * send back the hash of the decrypted challenge.
+ */
+ {
+ /* decrypted challenge/session key buffer */
+ unsigned char crypt_buf[1024];
+ /* the SHA1 of the decrypted challenge */
+ unsigned char challenge_hash[HASH_SIZE];
+
+ ret = client_recv_buffer(ct, &s->rfds, buf, sizeof(buf), &n);
+ if (ret < 0 || n == 0)
+ goto out;
+ PARA_INFO_LOG("<-- [challenge] (%zu bytes)\n", n);
+ ret = priv_decrypt(ct->key_file, crypt_buf,
+ (unsigned char *)buf, n);
+ if (ret < 0)
+ goto out;
+ hash_function((char *)crypt_buf, CHALLENGE_SIZE, challenge_hash);
+ ct->scc.send = sc_new(crypt_buf + CHALLENGE_SIZE, SESSION_KEY_LEN);
+ ct->scc.recv = sc_new(crypt_buf + CHALLENGE_SIZE + SESSION_KEY_LEN,
+ SESSION_KEY_LEN);
+ hash_to_asc(challenge_hash, buf);
+ PARA_INFO_LOG("--> %s\n", buf);
+ ret = send_bin_buffer(ct->scc.fd, (char *)challenge_hash,
+ HASH_SIZE);
+ if (ret < 0)
+ goto out;
+ ct->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);
+ ret = client_recv_buffer(ct, &s->rfds, buf, sizeof(buf), &n);
+ if (ret < 0 || n == 0)
+ goto out;
/* 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);
+ ret = -E_CLIENT_AUTH;
+ if (n < PROCEED_MSG_LEN)
+ goto out;
+ if (!strstr(buf, PROCEED_MSG))
+ goto out;
+ ct->status = CL_RECEIVED_PROCEED;
+ return;
}
case CL_RECEIVED_PROCEED: /* concat args and send command */
{
int i;
char *command = NULL;
- for (i = 0; i < pcd->conf.inputs_num; i++) {
+ if (!FD_ISSET(ct->scc.fd, &s->wfds))
+ return;
+ for (i = 0; i < ct->conf.inputs_num; i++) {
char *tmp = command;
command = make_message("%s\n%s", command?
- command : "", pcd->conf.inputs[i]);
+ command : "", ct->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);
+ ret = sc_send_buffer(&ct->scc, command);
free(command);
- if (t->ret > 0)
- pcd->status = CL_SENT_COMMAND;
+ if (ret < 0)
+ goto out;
+ ct->status = CL_SENT_COMMAND;
return;
}
case CL_SENT_COMMAND:
- pcd->loaded = 0;
- t->ret = client_recv_buffer(pcd);
- if (t->ret < 0)
+ {
+ char *buf2;
+ /* can not use "buf" here because we need a malloced buffer */
+ buf2 = para_malloc(CLIENT_BUFSIZE);
+ ret = client_recv_buffer(ct, &s->rfds, buf2, CLIENT_BUFSIZE, &n);
+ if (n > 0) {
+ if (strstr(buf2, AWAITING_DATA_MSG)) {
+ free(buf2);
+ ct->status = CL_SENDING;
+ return;
+ }
+ ct->status = CL_RECEIVING;
+ btr_add_output(buf2, n, btrn);
+ } else
+ free(buf2);
+ goto out;
+ }
+ case CL_SENDING:
+ {
+ char *buf2;
+ size_t sz;
+ ret = btr_node_status(btrn, 0, BTR_NT_LEAF);
+ if (ret < 0)
+ goto out;
+ if (ret == 0)
return;
- t->ret = -E_HANDSHAKE_COMPLETE;
- if (strstr(pcd->buf, AWAITING_DATA_MSG))
- pcd->status = CL_SENDING;
- else
- pcd->status = CL_RECEIVING;
- return;
- case CL_SENDING: /* FIXME: might block */
- PARA_INFO_LOG("loaded: %zd\n", *pcd->in_loaded);
- t->ret = send_bin_buffer(pcd->fd, pcd->inbuf, *pcd->in_loaded);
- if (t->ret < 0)
+ if (!FD_ISSET(ct->scc.fd, &s->wfds))
return;
- *pcd->in_loaded = 0; /* FIXME: short writes */
+ sz = btr_next_buffer(btrn, &buf2);
+ ret = sc_send_bin_buffer(&ct->scc, buf2, sz);
+ if (ret < 0)
+ goto out;
+ btr_consume(btrn, sz);
return;
+ }
case CL_RECEIVING:
- t->ret = client_recv_buffer(pcd);
- return;
+ {
+ char *buf2;
+ ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
+ if (ret < 0)
+ goto out;
+ if (ret == 0)
+ return;
+ /*
+ * The FD_ISSET() is not strictly necessary, but is allows us
+ * to skip the malloc below if there is nothing to read anyway.
+ */
+ if (!FD_ISSET(ct->scc.fd, &s->rfds))
+ return;
+ buf2 = para_malloc(CLIENT_BUFSIZE);
+ ret = client_recv_buffer(ct, &s->rfds, buf2, CLIENT_BUFSIZE, &n);
+ if (n > 0) {
+ buf2 = para_realloc(buf2, n);
+ btr_add_output(buf2, n, btrn);
+ } else
+ free(buf2);
+ goto out;
+ }
}
+out:
+ t->error = ret;
+ if (ret < 0) {
+ if (ret != -E_SERVER_EOF && ret != -E_BTR_EOF)
+ PARA_ERROR_LOG("%s\n", para_strerror(-t->error));
+ btr_remove_node(btrn);
+ }
+}
+
+/* connect to para_server and register the client task */
+static int client_connect(struct client_task *ct)
+{
+ int ret;
+
+ ct->scc.fd = -1;
+ ret = para_connect_simple(IPPROTO_TCP, ct->conf.hostname_arg,
+ ct->conf.server_port_arg);
+ if (ret < 0)
+ return ret;
+ ct->scc.fd = ret;
+ ct->status = CL_CONNECTED;
+ ret = mark_fd_nonblocking(ct->scc.fd);
+ if (ret < 0)
+ goto err_out;
+ ct->task.pre_select = client_pre_select;
+ ct->task.post_select = client_post_select;
+ sprintf(ct->task.status, "client");
+ register_task(&ct->task);
+ return 1;
+err_out:
+ close(ct->scc.fd);
+ ct->scc.fd = -1;
+ return ret;
+}
+
+/**
+ * Open connection to para_server.
+ *
+ * \param argc Usual argument count.
+ * \param argv Usual argument vector.
+ * \param ct_ptr Points to dynamically allocated and initialized client task
+ * struct upon successful return.
+ * \param loglevel If not \p NULL, the number of the loglevel is stored here.
+ * \param parent Add the new buffer tree node as a child of this node.
+ * \param child Add the new buffer tree node as a parent of this node.
+ *
+ * Check the command line options given by \a argc and argv, set default values
+ * for user name and rsa key file, read further option from the config file.
+ * Finally, establish a connection to para_server.
+ *
+ * \return Standard.
+ */
+int client_open(int argc, char *argv[], struct client_task **ct_ptr,
+ int *loglevel, struct btr_node *parent, struct btr_node *child)
+{
+ char *home = para_homedir();
+ int ret;
+ struct client_task *ct = para_calloc(sizeof(struct client_task));
+
+ ct->btrn = btr_new_node(&(struct btr_node_description)
+ EMBRACE(.name = "client", .parent = parent, .child = child));
+ *ct_ptr = ct;
+ ct->scc.fd = -1;
+ ret = -E_CLIENT_SYNTAX;
+ if (client_cmdline_parser(argc, argv, &ct->conf))
+ goto out;
+ HANDLE_VERSION_FLAG("client", ct->conf);
+ ret = -E_CLIENT_SYNTAX;
+ if (!ct->conf.inputs_num)
+ goto out;
+
+ ct->config_file = ct->conf.config_file_given?
+ para_strdup(ct->conf.config_file_arg) :
+ make_message("%s/.paraslash/client.conf", home);
+ ret = file_exists(ct->config_file);
+ if (!ret && ct->conf.config_file_given) {
+ ret = -E_NO_CONFIG;
+ goto out;
+ }
+ if (ret) {
+ struct client_cmdline_parser_params params = {
+ .override = 0,
+ .initialize = 0,
+ .check_required = 0,
+ .check_ambiguity = 0,
+ .print_errors = 0
+ };
+ ret = -E_BAD_CONFIG;
+ if (client_cmdline_parser_config_file(ct->config_file,
+ &ct->conf, ¶ms))
+ goto out;
+ }
+ ct->user = ct->conf.user_given?
+ para_strdup(ct->conf.user_arg) : para_logname();
+
+ ct->key_file = ct->conf.key_file_given?
+ para_strdup(ct->conf.key_file_arg) :
+ make_message("%s/.paraslash/key.%s", home, ct->user);
+
+ if (loglevel)
+ *loglevel = get_loglevel_by_name(ct->conf.loglevel_arg);
+ PARA_INFO_LOG("loglevel: %s\n", ct->conf.loglevel_arg);
+ PARA_INFO_LOG("config_file: %s\n", ct->config_file);
+ PARA_INFO_LOG("key_file: %s\n", ct->key_file);
+ PARA_NOTICE_LOG("connecting %s:%d\n", ct->conf.hostname_arg,
+ ct->conf.server_port_arg);
+ ret = client_connect(ct);
+out:
+ free(home);
+ if (ret < 0) {
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+ btr_remove_node(ct->btrn);
+ btr_free_node(ct->btrn);
+ client_close(ct);
+ *ct_ptr = NULL;
+ }
+ return ret;
}