X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=client.h;h=fa965c354997ff9fef38ebba8b8220412ffeab84;hp=8f7b9a5dc1b47d4783da5ead2274cd87607a296f;hb=a601afd9c3c5819a0f2361bf073b7c737dcdab45;hpb=4b16f9ed84133d5c475eaeb887df6475ab0091bc

diff --git a/client.h b/client.h
index 8f7b9a5d..fa965c35 100644
--- a/client.h
+++ b/client.h
@@ -1,63 +1,76 @@
 /*
- * Copyright (C) 1997-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2009 Andre Noll <maan@systemlinux.org>
  *
- *     This program is free software; you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation; either version 2 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program; if not, write to the Free Software
- *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
  */
 
 /** \file client.h common client functions and exported symbols from client_common.c */
 
 #include <openssl/rc4.h>
+
+/**
+ * the different states of a connection from the view of the client
+ */
 enum {
+	/** tcp connection is established */
 	CL_CONNECTED,
+	/** server sends the welcome message */
 	CL_RECEIVED_WELCOME,
+	/** client sends the authentification request */
 	CL_SENT_AUTH,
+	/** server sends a challenge */
 	CL_RECEIVED_CHALLENGE,
+	/** clientd solves the challenge and sends the result */
 	CL_SENT_CH_RESPONSE,
+	/** server accepts this authentication */
 	CL_RECEIVED_PROCEED,
+	/** client sends the command */
 	CL_SENT_COMMAND,
-	CL_SENDING_STDIN,
-	CL_RECEIVING_SERVER_OUTPUT
+	/** server expects data */
+	CL_SENDING,
+	/** client expects data */
+	CL_RECEIVING,
 };
 
+/** size of the receiving buffer */
 #define CLIENT_BUFSIZE 8192
 
-struct private_client_data {
+/**
+ * data specific to a client task
+ */
+struct client_task {
+	/** the state of the connection */
 	int status;
-	int fd;
+	/** The file descriptor and the rc4 keys. */
+	struct rc4_context rc4c;
+	/** the configuration (including the command) */
 	struct client_args_info conf;
+	/** the config file for client options */
 	char *config_file;
+	/** the RSA private key */
 	char *key_file;
+	/** paraslash user name */
 	char *user;
-	RC4_KEY rc4_recv_key;
-	RC4_KEY rc4_send_key;
+	/** the client task structure */
 	struct task task;
-	int eof;
-	char buf[CLIENT_BUFSIZE];
+	/** the buffer used for handshake and receiving */
+	char *buf;
+	/** number of bytes loaded in \p buf */
 	size_t loaded;
+	/** non-zero if the pre_select hook added \p fd to the read fd set */
 	int check_r;
+	/** non-zero if the pre_select hook added \p fd to the write fd set */
 	int check_w;
+	/** the decrypted challenge */
 	long unsigned challenge_nr;
-	/* only used if stdin gets sent to para_server */
+	/** pointer to the data to be sent to para_server */
 	char *inbuf;
+	/** number of bytes loaded in \p inbuf */
 	size_t *in_loaded;
-	int *in_eof;
+	/** Non-zero if input task encountered an eof or an error condition. */
+	int *in_error;
 };
 
-int client_open(struct private_client_data *pcd);
-void client_close(struct private_client_data *pcd);
-int client_parse_config(int argc, char *argv[],
-	struct private_client_data **pcd_ptr);
-void client_pre_select(struct sched *s, struct task *t);
-void client_post_select(struct sched *s, struct task *t);
+void client_close(struct client_task *ct);
+int client_open(int argc, char *argv[], struct client_task **ct,
+		int *loglevel);