1 files changed, 0 insertions, 682 deletions

diff --git a/src/server/telnet_server.c b/src/server/telnet_server.c
deleted file mode 100644
index 0f5769a..0000000
--- a/src/server/telnet_server.c
+++ /dev/null
@@ -1,682 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2005 by Dominic Rath                                    *
- *   Dominic.Rath@gmx.de                                                   *
- *                                                                         *
- *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
- *   oyvind.harboe@zylin.com                                               *
- *                                                                         *
- *   Copyright (C) 2008 by Spencer Oliver                                  *
- *   spen@spen-soft.co.uk                                                  *
- *                                                                         *
- *   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, see <http://www.gnu.org/licenses/>. *
- ***************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "telnet_server.h"
-#include <target/target_request.h>
-#include <helper/configuration.h>
-
-static char *telnet_port;
-
-static char *negotiate =
-	"\xFF\xFB\x03"			/* IAC WILL Suppress Go Ahead */
-	"\xFF\xFB\x01"			/* IAC WILL Echo */
-	"\xFF\xFD\x03"			/* IAC DO Suppress Go Ahead */
-	"\xFF\xFE\x01";			/* IAC DON'T Echo */
-
-#define CTRL(c) (c - '@')
-#define TELNET_HISTORY	".openocd_history"
-
-/* The only way we can detect that the socket is closed is the first time
- * we write to it, we will fail. Subsequent write operations will
- * succeed. Shudder!
- */
-static int telnet_write(struct connection *connection, const void *data,
-	int len)
-{
-	struct telnet_connection *t_con = connection->priv;
-	if (t_con->closed)
-		return ERROR_SERVER_REMOTE_CLOSED;
-
-	if (connection_write(connection, data, len) == len)
-		return ERROR_OK;
-	t_con->closed = 1;
-	return ERROR_SERVER_REMOTE_CLOSED;
-}
-
-static int telnet_prompt(struct connection *connection)
-{
-	struct telnet_connection *t_con = connection->priv;
-
-	return telnet_write(connection, t_con->prompt, strlen(t_con->prompt));
-}
-
-static int telnet_outputline(struct connection *connection, const char *line)
-{
-	int len;
-
-	/* process lines in buffer */
-	while (*line) {
-		char *line_end = strchr(line, '\n');
-
-		if (line_end)
-			len = line_end-line;
-		else
-			len = strlen(line);
-
-		telnet_write(connection, line, len);
-		if (line_end) {
-			telnet_write(connection, "\r\n", 2);
-			line += len + 1;
-		} else
-			line += len;
-	}
-
-	return ERROR_OK;
-}
-
-static int telnet_output(struct command_context *cmd_ctx, const char *line)
-{
-	struct connection *connection = cmd_ctx->output_handler_priv;
-
-	return telnet_outputline(connection, line);
-}
-
-static void telnet_log_callback(void *priv, const char *file, unsigned line,
-	const char *function, const char *string)
-{
-	struct connection *connection = priv;
-	struct telnet_connection *t_con = connection->priv;
-	int i;
-
-	/* if there is no prompt, simply output the message */
-	if (t_con->line_cursor < 0) {
-		telnet_outputline(connection, string);
-		return;
-	}
-
-	/* clear the command line */
-	for (i = strlen(t_con->prompt) + t_con->line_size; i > 0; i -= 16)
-		telnet_write(connection, "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b", i > 16 ? 16 : i);
-	for (i = strlen(t_con->prompt) + t_con->line_size; i > 0; i -= 16)
-		telnet_write(connection, "                ", i > 16 ? 16 : i);
-	for (i = strlen(t_con->prompt) + t_con->line_size; i > 0; i -= 16)
-		telnet_write(connection, "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b", i > 16 ? 16 : i);
-
-	/* output the message */
-	telnet_outputline(connection, string);
-
-	/* put the command line to its previous state */
-	telnet_prompt(connection);
-	telnet_write(connection, t_con->line, t_con->line_size);
-	for (i = t_con->line_size; i > t_con->line_cursor; i--)
-		telnet_write(connection, "\b", 1);
-}
-
-static void telnet_load_history(struct telnet_connection *t_con)
-{
-	FILE *histfp;
-	char buffer[TELNET_BUFFER_SIZE];
-	int i = 0;
-
-	char *history = get_home_dir(TELNET_HISTORY);
-
-	if (history == NULL) {
-		LOG_INFO("unable to get user home directory, telnet history will be disabled");
-		return;
-	}
-
-	histfp = fopen(history, "rb");
-
-	if (histfp) {
-
-		while (fgets(buffer, sizeof(buffer), histfp) != NULL) {
-
-			char *p = strchr(buffer, '\n');
-			if (p)
-				*p = '\0';
-			if (buffer[0] && i < TELNET_LINE_HISTORY_SIZE)
-				t_con->history[i++] = strdup(buffer);
-		}
-
-		t_con->next_history = i;
-		t_con->next_history %= TELNET_LINE_HISTORY_SIZE;
-		/* try to set to last entry - 1, that way we skip over any exit/shutdown cmds */
-		t_con->current_history = t_con->next_history > 0 ? i - 1 : 0;
-		fclose(histfp);
-	}
-
-	free(history);
-}
-
-static void telnet_save_history(struct telnet_connection *t_con)
-{
-	FILE *histfp;
-	int i;
-	int num;
-
-	char *history = get_home_dir(TELNET_HISTORY);
-
-	if (history == NULL) {
-		LOG_INFO("unable to get user home directory, telnet history will be disabled");
-		return;
-	}
-
-	histfp = fopen(history, "wb");
-
-	if (histfp) {
-
-		num = TELNET_LINE_HISTORY_SIZE;
-		i = t_con->current_history + 1;
-		i %= TELNET_LINE_HISTORY_SIZE;
-
-		while (t_con->history[i] == NULL && num > 0) {
-			i++;
-			i %= TELNET_LINE_HISTORY_SIZE;
-			num--;
-		}
-
-		if (num > 0) {
-			for (; num > 0; num--) {
-				fprintf(histfp, "%s\n", t_con->history[i]);
-				i++;
-				i %= TELNET_LINE_HISTORY_SIZE;
-			}
-		}
-		fclose(histfp);
-	}
-
-	free(history);
-}
-
-static int telnet_new_connection(struct connection *connection)
-{
-	struct telnet_connection *telnet_connection;
-	struct telnet_service *telnet_service = connection->service->priv;
-	int i;
-
-	telnet_connection = malloc(sizeof(struct telnet_connection));
-
-	if (!telnet_connection) {
-		LOG_ERROR("Failed to allocate telnet connection.");
-		return ERROR_FAIL;
-	}
-
-	connection->priv = telnet_connection;
-
-	/* initialize telnet connection information */
-	telnet_connection->closed = 0;
-	telnet_connection->line_size = 0;
-	telnet_connection->line_cursor = 0;
-	telnet_connection->option_size = 0;
-	telnet_connection->prompt = strdup("> ");
-	telnet_connection->state = TELNET_STATE_DATA;
-
-	/* output goes through telnet connection */
-	command_set_output_handler(connection->cmd_ctx, telnet_output, connection);
-
-	/* negotiate telnet options */
-	telnet_write(connection, negotiate, strlen(negotiate));
-
-	/* print connection banner */
-	if (telnet_service->banner) {
-		telnet_write(connection, telnet_service->banner, strlen(telnet_service->banner));
-		telnet_write(connection, "\r\n", 2);
-	}
-
-	/* the prompt is always placed at the line beginning */
-	telnet_write(connection, "\r", 1);
-	telnet_prompt(connection);
-
-	/* initialize history */
-	for (i = 0; i < TELNET_LINE_HISTORY_SIZE; i++)
-		telnet_connection->history[i] = NULL;
-	telnet_connection->next_history = 0;
-	telnet_connection->current_history = 0;
-	telnet_load_history(telnet_connection);
-
-	log_add_callback(telnet_log_callback, connection);
-
-	return ERROR_OK;
-}
-
-static void telnet_clear_line(struct connection *connection,
-	struct telnet_connection *t_con)
-{
-	/* move to end of line */
-	if (t_con->line_cursor < t_con->line_size)
-		telnet_write(connection,
-			t_con->line + t_con->line_cursor,
-			t_con->line_size - t_con->line_cursor);
-
-	/* backspace, overwrite with space, backspace */
-	while (t_con->line_size > 0) {
-		telnet_write(connection, "\b \b", 3);
-		t_con->line_size--;
-	}
-	t_con->line_cursor = 0;
-}
-
-static void telnet_history_go(struct connection *connection, int idx)
-{
-	struct telnet_connection *t_con = connection->priv;
-
-	if (t_con->history[idx]) {
-		telnet_clear_line(connection, t_con);
-		t_con->line_size = strlen(t_con->history[idx]);
-		t_con->line_cursor = t_con->line_size;
-		memcpy(t_con->line, t_con->history[idx], t_con->line_size);
-		telnet_write(connection, t_con->line, t_con->line_size);
-		t_con->current_history = idx;
-	}
-	t_con->state = TELNET_STATE_DATA;
-}
-
-static void telnet_history_up(struct connection *connection)
-{
-	struct telnet_connection *t_con = connection->priv;
-
-	int last_history = (t_con->current_history > 0) ?
-				t_con->current_history - 1 :
-				TELNET_LINE_HISTORY_SIZE-1;
-	telnet_history_go(connection, last_history);
-}
-
-static void telnet_history_down(struct connection *connection)
-{
-	struct telnet_connection *t_con = connection->priv;
-
-	int next_history = (t_con->current_history + 1) % TELNET_LINE_HISTORY_SIZE;
-	telnet_history_go(connection, next_history);
-}
-
-static int telnet_input(struct connection *connection)
-{
-	int bytes_read;
-	unsigned char buffer[TELNET_BUFFER_SIZE];
-	unsigned char *buf_p;
-	struct telnet_connection *t_con = connection->priv;
-	struct command_context *command_context = connection->cmd_ctx;
-
-	bytes_read = connection_read(connection, buffer, TELNET_BUFFER_SIZE);
-
-	if (bytes_read == 0)
-		return ERROR_SERVER_REMOTE_CLOSED;
-	else if (bytes_read == -1) {
-		LOG_ERROR("error during read: %s", strerror(errno));
-		return ERROR_SERVER_REMOTE_CLOSED;
-	}
-
-	buf_p = buffer;
-	while (bytes_read) {
-		switch (t_con->state) {
-			case TELNET_STATE_DATA:
-				if (*buf_p == 0xff)
-					t_con->state = TELNET_STATE_IAC;
-				else {
-					if (isprint(*buf_p)) {	/* printable character */
-						/* watch buffer size leaving one spare character for
-						 * string null termination */
-						if (t_con->line_size == TELNET_LINE_MAX_SIZE-1) {
-							/* output audible bell if buffer is full
-							 * "\a" does not work, at least on windows */
-							telnet_write(connection, "\x07", 1);
-						} else if (t_con->line_cursor == t_con->line_size) {
-							telnet_write(connection, buf_p, 1);
-							t_con->line[t_con->line_size++] = *buf_p;
-							t_con->line_cursor++;
-						} else {
-							int i;
-							memmove(t_con->line + t_con->line_cursor + 1,
-									t_con->line + t_con->line_cursor,
-									t_con->line_size - t_con->line_cursor);
-							t_con->line[t_con->line_cursor] = *buf_p;
-							t_con->line_size++;
-							telnet_write(connection,
-									t_con->line + t_con->line_cursor,
-									t_con->line_size - t_con->line_cursor);
-							t_con->line_cursor++;
-							for (i = t_con->line_cursor; i < t_con->line_size; i++)
-								telnet_write(connection, "\b", 1);
-						}
-					} else {	/* non-printable */
-						if (*buf_p == 0x1b) {	/* escape */
-							t_con->state = TELNET_STATE_ESCAPE;
-							t_con->last_escape = '\x00';
-						} else if ((*buf_p == 0xd) || (*buf_p == 0xa)) {	/* CR/LF */
-							int retval;
-
-							/* skip over combinations with CR/LF and NUL characters */
-							if ((bytes_read > 1) && ((*(buf_p + 1) == 0xa) ||
-									(*(buf_p + 1) == 0xd))) {
-								buf_p++;
-								bytes_read--;
-							}
-							if ((bytes_read > 1) && (*(buf_p + 1) == 0)) {
-								buf_p++;
-								bytes_read--;
-							}
-							t_con->line[t_con->line_size] = 0;
-
-							telnet_write(connection, "\r\n\x00", 3);
-
-							if (strcmp(t_con->line, "history") == 0) {
-								int i;
-								for (i = 1; i < TELNET_LINE_HISTORY_SIZE; i++) {
-									/* the t_con->next_history line contains empty string
-									 * (unless NULL), thus it is not printed */
-									char *history_line = t_con->history[(t_con->
-											next_history + i) %
-											TELNET_LINE_HISTORY_SIZE];
-									if (history_line) {
-										telnet_write(connection, history_line,
-												strlen(history_line));
-										telnet_write(connection, "\r\n\x00", 3);
-									}
-								}
-								t_con->line_size = 0;
-								t_con->line_cursor = 0;
-								continue;
-							}
-
-							/* save only non-blank not repeating lines in the history */
-							char *prev_line = t_con->history[(t_con->current_history > 0) ?
-									t_con->current_history - 1 : TELNET_LINE_HISTORY_SIZE-1];
-							if (*t_con->line && (prev_line == NULL ||
-									strcmp(t_con->line, prev_line))) {
-								/* if the history slot is already taken, free it */
-								if (t_con->history[t_con->next_history])
-									free(t_con->history[t_con->next_history]);
-
-								/* add line to history */
-								t_con->history[t_con->next_history] = strdup(t_con->line);
-
-								/* wrap history at TELNET_LINE_HISTORY_SIZE */
-								t_con->next_history = (t_con->next_history + 1) %
-										TELNET_LINE_HISTORY_SIZE;
-
-								/* current history line starts at the new entry */
-								t_con->current_history =
-										t_con->next_history;
-
-								if (t_con->history[t_con->current_history])
-									free(t_con->history[t_con->current_history]);
-								t_con->history[t_con->current_history] = strdup("");
-							}
-
-							t_con->line_size = 0;
-
-							/* to suppress prompt in log callback during command execution */
-							t_con->line_cursor = -1;
-
-							if (strcmp(t_con->line, "shutdown") == 0)
-								telnet_save_history(t_con);
-
-							retval = command_run_line(command_context, t_con->line);
-
-							t_con->line_cursor = 0;
-
-							if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
-								return ERROR_SERVER_REMOTE_CLOSED;
-
-							/* the prompt is always * placed at the line beginning */
-							telnet_write(connection, "\r", 1);
-
-							retval = telnet_prompt(connection);
-							if (retval == ERROR_SERVER_REMOTE_CLOSED)
-								return ERROR_SERVER_REMOTE_CLOSED;
-
-						} else if ((*buf_p == 0x7f) || (*buf_p == 0x8)) {	/* delete character */
-							if (t_con->line_cursor > 0) {
-								if (t_con->line_cursor != t_con->line_size) {
-									int i;
-									telnet_write(connection, "\b", 1);
-									t_con->line_cursor--;
-									t_con->line_size--;
-									memmove(t_con->line + t_con->line_cursor,
-											t_con->line + t_con->line_cursor + 1,
-											t_con->line_size -
-											t_con->line_cursor);
-
-									telnet_write(connection,
-											t_con->line + t_con->line_cursor,
-											t_con->line_size -
-											t_con->line_cursor);
-									telnet_write(connection, " \b", 2);
-									for (i = t_con->line_cursor; i < t_con->line_size; i++)
-										telnet_write(connection, "\b", 1);
-								} else {
-									t_con->line_size--;
-									t_con->line_cursor--;
-									/* back space: move the 'printer' head one char
-									 * back, overwrite with space, move back again */
-									telnet_write(connection, "\b \b", 3);
-								}
-							}
-						} else if (*buf_p == 0x15) /* clear line */
-							telnet_clear_line(connection, t_con);
-						else if (*buf_p == CTRL('B')) {	/* cursor left */
-							if (t_con->line_cursor > 0) {
-								telnet_write(connection, "\b", 1);
-								t_con->line_cursor--;
-							}
-							t_con->state = TELNET_STATE_DATA;
-						} else if (*buf_p == CTRL('F')) {	/* cursor right */
-							if (t_con->line_cursor < t_con->line_size)
-								telnet_write(connection, t_con->line + t_con->line_cursor++, 1);
-							t_con->state = TELNET_STATE_DATA;
-						} else if (*buf_p == CTRL('P'))		/* cursor up */
-							telnet_history_up(connection);
-						else if (*buf_p == CTRL('N'))		/* cursor down */
-							telnet_history_down(connection);
-						else
-							LOG_DEBUG("unhandled nonprintable: %2.2x", *buf_p);
-					}
-				}
-				break;
-			case TELNET_STATE_IAC:
-				switch (*buf_p) {
-				case 0xfe:
-					t_con->state = TELNET_STATE_DONT;
-					break;
-				case 0xfd:
-					t_con->state = TELNET_STATE_DO;
-					break;
-				case 0xfc:
-					t_con->state = TELNET_STATE_WONT;
-					break;
-				case 0xfb:
-					t_con->state = TELNET_STATE_WILL;
-					break;
-				}
-				break;
-			case TELNET_STATE_SB:
-				break;
-			case TELNET_STATE_SE:
-				break;
-			case TELNET_STATE_WILL:
-			case TELNET_STATE_WONT:
-			case TELNET_STATE_DO:
-			case TELNET_STATE_DONT:
-				t_con->state = TELNET_STATE_DATA;
-				break;
-			case TELNET_STATE_ESCAPE:
-				if (t_con->last_escape == '[') {
-					if (*buf_p == 'D') {	/* cursor left */
-						if (t_con->line_cursor > 0) {
-							telnet_write(connection, "\b", 1);
-							t_con->line_cursor--;
-						}
-						t_con->state = TELNET_STATE_DATA;
-					} else if (*buf_p == 'C') {	/* cursor right */
-						if (t_con->line_cursor < t_con->line_size)
-							telnet_write(connection,
-									t_con->line + t_con->line_cursor++, 1);
-						t_con->state = TELNET_STATE_DATA;
-					} else if (*buf_p == 'A') {	/* cursor up */
-						telnet_history_up(connection);
-					} else if (*buf_p == 'B') {	/* cursor down */
-						telnet_history_down(connection);
-					} else if (*buf_p == '3')
-						t_con->last_escape = *buf_p;
-					else
-						t_con->state = TELNET_STATE_DATA;
-				} else if (t_con->last_escape == '3') {
-					/* Remove character */
-					if (*buf_p == '~') {
-						if (t_con->line_cursor < t_con->line_size) {
-							int i;
-							t_con->line_size--;
-							/* remove char from line buffer */
-							memmove(t_con->line + t_con->line_cursor,
-									t_con->line + t_con->line_cursor + 1,
-									t_con->line_size - t_con->line_cursor);
-
-							/* print remainder of buffer */
-							telnet_write(connection, t_con->line + t_con->line_cursor,
-									t_con->line_size - t_con->line_cursor);
-							/* overwrite last char with whitespace */
-							telnet_write(connection, " \b", 2);
-
-							/* move back to cursor position*/
-							for (i = t_con->line_cursor; i < t_con->line_size; i++)
-								telnet_write(connection, "\b", 1);
-						}
-
-						t_con->state = TELNET_STATE_DATA;
-					} else
-						t_con->state = TELNET_STATE_DATA;
-				} else if (t_con->last_escape == '\x00') {
-					if (*buf_p == '[')
-						t_con->last_escape = *buf_p;
-					else
-						t_con->state = TELNET_STATE_DATA;
-				} else {
-					LOG_ERROR("BUG: unexpected value in t_con->last_escape");
-					t_con->state = TELNET_STATE_DATA;
-				}
-
-				break;
-			default:
-				LOG_ERROR("unknown telnet state");
-				exit(-1);
-		}
-
-		bytes_read--;
-		buf_p++;
-	}
-
-	return ERROR_OK;
-}
-
-static int telnet_connection_closed(struct connection *connection)
-{
-	struct telnet_connection *t_con = connection->priv;
-	int i;
-
-	log_remove_callback(telnet_log_callback, connection);
-
-	if (t_con->prompt) {
-		free(t_con->prompt);
-		t_con->prompt = NULL;
-	}
-
-	/* save telnet history */
-	telnet_save_history(t_con);
-
-	for (i = 0; i < TELNET_LINE_HISTORY_SIZE; i++) {
-		if (t_con->history[i]) {
-			free(t_con->history[i]);
-			t_con->history[i] = NULL;
-		}
-	}
-
-	/* if this connection registered a debug-message receiver delete it */
-	delete_debug_msg_receiver(connection->cmd_ctx, NULL);
-
-	if (connection->priv) {
-		free(connection->priv);
-		connection->priv = NULL;
-	} else
-		LOG_ERROR("BUG: connection->priv == NULL");
-
-	return ERROR_OK;
-}
-
-int telnet_init(char *banner)
-{
-	if (strcmp(telnet_port, "disabled") == 0) {
-		LOG_INFO("telnet server disabled");
-		return ERROR_OK;
-	}
-
-	struct telnet_service *telnet_service;
-
-	telnet_service = malloc(sizeof(struct telnet_service));
-
-	if (!telnet_service) {
-		LOG_ERROR("Failed to allocate telnet service.");
-		return ERROR_FAIL;
-	}
-
-	telnet_service->banner = banner;
-
-	return add_service("telnet",
-		telnet_port,
-		CONNECTION_LIMIT_UNLIMITED,
-		telnet_new_connection,
-		telnet_input,
-		telnet_connection_closed,
-		telnet_service);
-}
-
-/* daemon configuration command telnet_port */
-COMMAND_HANDLER(handle_telnet_port_command)
-{
-	return CALL_COMMAND_HANDLER(server_pipe_command, &telnet_port);
-}
-
-COMMAND_HANDLER(handle_exit_command)
-{
-	return ERROR_COMMAND_CLOSE_CONNECTION;
-}
-
-static const struct command_registration telnet_command_handlers[] = {
-	{
-		.name = "exit",
-		.handler = handle_exit_command,
-		.mode = COMMAND_EXEC,
-		.usage = "",
-		.help = "exit telnet session",
-	},
-	{
-		.name = "telnet_port",
-		.handler = handle_telnet_port_command,
-		.mode = COMMAND_ANY,
-		.help = "Specify port on which to listen "
-			"for incoming telnet connections.  "
-			"Read help on 'gdb_port'.",
-		.usage = "[port_num]",
-	},
-	COMMAND_REGISTRATION_DONE
-};
-
-int telnet_register_commands(struct command_context *cmd_ctx)
-{
-	telnet_port = strdup("4444");
-	return register_commands(cmd_ctx, NULL, telnet_command_handlers);
-}