X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=client.c;h=3fc673e7c6386238b4cada69e2ca2dff3df4c357;hb=3a343b3f6bdf852848b2eb9b7d2f4f3661aa78cd;hp=dba99a28749850ed3f797b8859cdbc8de008920d;hpb=124eb239ef47027d6e7431a57339e2dfc5c65ad7;p=paraslash.git

diff --git a/client.c b/client.c
index dba99a28..3fc673e7 100644
--- a/client.c
+++ b/client.c
@@ -38,6 +38,9 @@ struct private_client_data {
 	char *config_file;
 	char *key_file;
 	char *user;
+	RC4_KEY rc4_recv_key;
+	RC4_KEY rc4_send_key;
+
 	char *in_buf;
 	size_t *in_loaded;
 	char *out_buf;
@@ -48,6 +51,19 @@ INIT_CLIENT_ERRLISTS;
 
 static struct private_client_data *pcd;
 
+static void rc4_send(unsigned long len, const unsigned char *indata,
+		unsigned char *outdata)
+{
+	RC4(&pcd->rc4_send_key, len, indata, outdata);
+}
+
+static void rc4_recv(unsigned long len, const unsigned char *indata,
+		unsigned char *outdata)
+{
+	RC4(&pcd->rc4_recv_key, len, indata, outdata);
+}
+
+
 /*
  * client log function
  */
@@ -75,6 +91,16 @@ static void client_close(struct private_client_data *pcd)
 	free(pcd);
 }
 
+static void append_str(char **data, const char* append)
+{
+	if (*data) {
+		char *tmp = make_message("%s\n%s", *data, append);
+		free(*data);
+		*data = tmp;
+	} else
+		*data = para_strdup(append);
+}
+
 static int client_parse_config(int argc, char *argv[],
 		struct private_client_data **pcd_ptr)
 {
@@ -116,34 +142,6 @@ out:
 	return ret;
 }
 
-static RC4_KEY rc4_recv_key;
-static RC4_KEY rc4_send_key;
-static unsigned char rc4_buf[2 * RC4_KEY_LEN];
-
-static void rc4_send(unsigned long len, const unsigned char *indata, unsigned char *outdata)
-{
-	RC4(&rc4_send_key, len, indata, outdata);
-}
-
-static void rc4_recv(unsigned long len, const unsigned char *indata, unsigned char *outdata)
-{
-	RC4(&rc4_recv_key, len, indata, outdata);
-}
-void (*crypt_function_recv)(unsigned long len, const unsigned char *indata, unsigned char *outdata);
-void (*crypt_function_send)(unsigned long len, const unsigned char *indata, unsigned char *outdata);
-
-
-static void append_str(char **data, const char* append)
-{
-	if (*data) {
-		char *tmp = make_message("%s\n%s", *data, append);
-		free(*data);
-		*data = tmp;
-	} else
-		*data = para_strdup(append);
-}
-
-
 static int send_stdin(int fd)
 {
 	char buf[8192];
@@ -161,6 +159,36 @@ static int send_stdin(int fd)
 	return 1;
 }
 
+static int client_open(struct private_client_data *pcd)
+{
+	int ret;
+	struct hostent *he;
+	struct sockaddr_in their_addr;
+
+	/* get the host info */
+	PARA_NOTICE_LOG("getting host info of %s\n",
+		pcd->conf.hostname_arg);
+	ret = get_host_info(pcd->conf.hostname_arg, &he);
+	if (ret < 0)
+		goto out;
+	/* get new socket */
+	ret = get_socket();
+	if (ret < 0)
+		goto out;
+	pcd->fd = ret;
+	/* init their_addr */
+	init_sockaddr(&their_addr, pcd->conf.server_port_arg, he);
+	/* connect */
+	PARA_NOTICE_LOG("connecting to %s\n", pcd->conf.hostname_arg);
+	ret = para_connect(pcd->fd, &their_addr);
+	if (ret < 0)
+		goto out;
+	ret = 1;
+out:
+	return ret;
+}
+
+
 /*
  * MAIN
  */
@@ -174,6 +202,7 @@ int main(int argc, char *argv[])
 	char buf[8192];
 	char *auth_str;
 	long unsigned challenge_nr;
+	unsigned char rc4_buf[2 * RC4_KEY_LEN] = "";
 
 	ret = client_parse_config(argc, argv, &pcd);
 	if (ret < 0)
@@ -191,27 +220,7 @@ int main(int argc, char *argv[])
 		pcd->conf.hostname_arg,
 		pcd->conf.server_port_arg
 	);
-	/* concat args */
-	for (i = 0; i < pcd->conf.inputs_num; i++)
-		append_str(&command, pcd->conf.inputs[i]);
-	crypt_function_recv = NULL;
-	crypt_function_send = NULL;
-	/* get the host info */
-	PARA_NOTICE_LOG("getting host info of %s\n",
-		pcd->conf.hostname_arg);
-	ret = get_host_info(pcd->conf.hostname_arg, &he);
-	if (ret < 0)
-		goto out;
-	/* get new socket */
-	ret = get_socket();
-	if (ret < 0)
-		goto out;
-	pcd->fd = ret;
-	/* init their_addr */
-	init_sockaddr(&their_addr, pcd->conf.server_port_arg, he);
-	/* connect */
-	PARA_NOTICE_LOG("connecting to %s\n", pcd->conf.hostname_arg);
-	ret = para_connect(pcd->fd, &their_addr);
+	ret = client_open(pcd);
 	if (ret < 0)
 		goto out;
 	/* receive welcome message */
@@ -264,13 +273,15 @@ int main(int argc, char *argv[])
 			numbytes - PROCEED_MSG_LEN - 1);
 		if (ret < 0)
 			goto out;
-		RC4_set_key(&rc4_send_key, RC4_KEY_LEN, rc4_buf);
-		RC4_set_key(&rc4_recv_key, RC4_KEY_LEN, rc4_buf + RC4_KEY_LEN);
-		PARA_INFO_LOG("rc4 encrytion activated: %x:%x:%x:%x\n",
+		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);
+		PARA_INFO_LOG("rc4 encryption activated: %x:%x:%x:%x\n",
 			rc4_buf[0], rc4_buf[1], rc4_buf[2], rc4_buf[3]);
-		crypt_function_recv = rc4_recv;
-		crypt_function_send = rc4_send;
+		enable_crypt(pcd->fd, rc4_recv, rc4_send);
 	}
+	/* concat args */
+	for (i = 0; i < pcd->conf.inputs_num; i++)
+		append_str(&command, pcd->conf.inputs[i]);
 	/* send command */
 	PARA_INFO_LOG("--> %s\n", command);
 	ret = send_buffer(pcd->fd, command);