Charles Hardin <ckhardin@gmail.com> - Tcl Server
git-svn-id: svn://svn.berlios.de/openocd/trunk@757 b42882b7-edfa-0310-969c-e2dbd0fdcd60__archive__
oharboe
parent
9a8746de25
commit
2b673d0c1e
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@ -143,6 +143,7 @@ int handle_init_command(struct command_context_s *cmd_ctx, char *cmd, char **arg
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/* initialize telnet subsystem */
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telnet_init("Open On-Chip Debugger");
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gdb_init();
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tcl_init(); /* allows tcl to just connect without going thru telnet */
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return ERROR_OK;
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}
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@ -641,6 +642,7 @@ int main(int argc, char *argv[])
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server_register_commands(cmd_ctx);
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telnet_register_commands(cmd_ctx);
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gdb_register_commands(cmd_ctx);
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tcl_register_commands(cmd_ctx); /* tcl server commands */
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log_register_commands(cmd_ctx);
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jtag_register_commands(cmd_ctx);
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interpreter_register_commands(cmd_ctx);
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@ -3,3 +3,7 @@ METASOURCES = AUTO
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noinst_LIBRARIES = libserver.a
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noinst_HEADERS = server.h telnet_server.h gdb_server.h
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libserver_a_SOURCES = server.c telnet_server.c gdb_server.c
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# tcl server addons
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noinst_HEADERS += tcl_server.h
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libserver_a_SOURCES += tcl_server.c
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@ -0,0 +1,200 @@
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/***************************************************************************
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* Copyright (C) 2008 *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "tcl_server.h"
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#include "../jim.h"
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#include "log.h"
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#include "command.h"
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <ctype.h>
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#define TCL_SERVER_VERSION "TCL Server 0.1"
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#define TCL_MAX_LINE (4096)
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typedef struct tcl_connection_s {
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int tc_linedrop;
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int tc_lineoffset;
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char tc_line[TCL_MAX_LINE];
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int tc_outerror; /* flag an output error */
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} tcl_connection_t;
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extern Jim_Interp *interp;
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static unsigned short tcl_port = 0;
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/* commands */
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static int handle_tcl_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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/* handlers */
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static int tcl_new_connection(connection_t *connection);
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static int tcl_input(connection_t *connection);
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static int tcl_output(connection_t *connection, const void *buf, ssize_t len);
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static int tcl_closed(connection_t *connection);
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/* write data out to a socket.
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*
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* this is a blocking write, so the return value must equal the length, if
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* that is not the case then flag the connection with an output error.
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*/
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int tcl_output(connection_t *connection, const void *data, ssize_t len)
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{
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ssize_t wlen;
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tcl_connection_t *tclc;
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tclc = connection->priv;
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if (tclc->tc_outerror)
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return ERROR_SERVER_REMOTE_CLOSED;
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wlen = write_socket(connection->fd, data, len);
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if (wlen == len)
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return ERROR_OK;
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LOG_ERROR("error during write: %d != %d", wlen, len);
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tclc->tc_outerror = 1;
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return ERROR_SERVER_REMOTE_CLOSED;
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}
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/* connections */
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static int tcl_new_connection(connection_t *connection)
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{
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int i;
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tcl_connection_t *tclc;
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tclc = malloc(sizeof(tcl_connection_t));
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if (tclc == NULL)
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return ERROR_CONNECTION_REJECTED;
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memset(tclc, 0, sizeof(tcl_connection_t));
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connection->priv = tclc;
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return ERROR_OK;
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}
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static int tcl_input(connection_t *connection)
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{
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int retval;
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int i;
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ssize_t rlen;
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const char *result;
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int reslen;
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tcl_connection_t *tclc;
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char in[256];
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rlen = read_socket(connection->fd, &in, sizeof(in));
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if (rlen <= 0) {
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if (rlen < 0)
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LOG_ERROR("error during read: %s", strerror(errno));
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return ERROR_SERVER_REMOTE_CLOSED;
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}
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tclc = connection->priv;
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if (tclc == NULL)
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return ERROR_CONNECTION_REJECTED;
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/* push as much data into the line as possible */
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for (i = 0; i < rlen; i++)
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{
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if (!isprint(in[i]) && !isspace(in[i]))
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{
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/* drop this line */
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tclc->tc_linedrop = 1;
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continue;
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}
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/* buffer the data */
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tclc->tc_line[tclc->tc_lineoffset] = in[i];
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if (tclc->tc_lineoffset < TCL_MAX_LINE)
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tclc->tc_lineoffset++;
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else
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tclc->tc_linedrop = 1;
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if (in[i] != '\n')
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continue;
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/* process the line */
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if (tclc->tc_linedrop) {
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#define ESTR "line too long\n"
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retval = tcl_output(connection, ESTR, sizeof(ESTR));
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if (retval != ERROR_OK)
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return retval;
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#undef ESTR
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} else {
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tclc->tc_line[tclc->tc_lineoffset-1] = '\0';
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retval = Jim_Eval(interp, tclc->tc_line);
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result = Jim_GetString(Jim_GetResult(interp), &reslen);
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retval = tcl_output(connection, result, reslen);
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if (retval != ERROR_OK)
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return retval;
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if (memchr(result, '\n', reslen) == NULL)
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tcl_output(connection, "\n", 1);
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}
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tclc->tc_lineoffset = 0;
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tclc->tc_linedrop = 0;
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}
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return ERROR_OK;
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}
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static int tcl_closed(connection_t *connection)
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{
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/* cleanup connection context */
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if (connection->priv) {
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free(connection->priv);
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connection->priv = NULL;
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}
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return ERROR_OK;
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}
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int tcl_init(void)
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{
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int retval;
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if (tcl_port == 0)
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{
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LOG_WARNING("no tcl port specified, using default port 5555");
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tcl_port = 5555;
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}
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retval = add_service("tcl", CONNECTION_TCL, tcl_port, 1, tcl_new_connection, tcl_input, tcl_closed, NULL);
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return retval;
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}
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int tcl_register_commands(command_context_t *cmd_ctx)
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{
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register_command(cmd_ctx, NULL, "tcl_port", handle_tcl_port_command, COMMAND_CONFIG, "");
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return ERROR_OK;
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}
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static int handle_tcl_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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{
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if (argc == 1) {
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tcl_port = strtoul(args[0], NULL, 0);
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}
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return ERROR_OK;
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}
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@ -0,0 +1,28 @@
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/***************************************************************************
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* Copyright (C) 2008 *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef _TCL_SERVER_H_
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#define _TCL_SERVER_H_
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#include "server.h"
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extern int tcl_init(void);
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extern int tcl_register_commands(command_context_t *cmd_ctx);
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#endif /* _TCL_SERVER_H_ */
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