diff options
| -rw-r--r-- | src/openocd.c | 2 | ||||
| -rw-r--r-- | src/server/Makefile.am | 4 | ||||
| -rw-r--r-- | src/server/tcl_server.c | 200 | ||||
| -rw-r--r-- | src/server/tcl_server.h | 28 |
4 files changed, 234 insertions, 0 deletions
diff --git a/src/openocd.c b/src/openocd.c index b6b217df..5439ece0 100644 --- a/src/openocd.c +++ b/src/openocd.c @@ -143,6 +143,7 @@ int handle_init_command(struct command_context_s *cmd_ctx, char *cmd, char **arg /* initialize telnet subsystem */ telnet_init("Open On-Chip Debugger"); gdb_init(); + tcl_init(); /* allows tcl to just connect without going thru telnet */ return ERROR_OK; } @@ -641,6 +642,7 @@ int main(int argc, char *argv[]) server_register_commands(cmd_ctx); telnet_register_commands(cmd_ctx); gdb_register_commands(cmd_ctx); + tcl_register_commands(cmd_ctx); /* tcl server commands */ log_register_commands(cmd_ctx); jtag_register_commands(cmd_ctx); interpreter_register_commands(cmd_ctx); diff --git a/src/server/Makefile.am b/src/server/Makefile.am index 77256093..63bcc043 100644 --- a/src/server/Makefile.am +++ b/src/server/Makefile.am @@ -3,3 +3,7 @@ METASOURCES = AUTO noinst_LIBRARIES = libserver.a noinst_HEADERS = server.h telnet_server.h gdb_server.h libserver_a_SOURCES = server.c telnet_server.c gdb_server.c + +# tcl server addons +noinst_HEADERS += tcl_server.h +libserver_a_SOURCES += tcl_server.c diff --git a/src/server/tcl_server.c b/src/server/tcl_server.c new file mode 100644 index 00000000..b0073091 --- /dev/null +++ b/src/server/tcl_server.c @@ -0,0 +1,200 @@ +/***************************************************************************
+ * Copyright (C) 2008 *
+ * *
+ * 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 02111-1307, USA. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tcl_server.h"
+
+#include "../jim.h"
+#include "log.h"
+#include "command.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <ctype.h>
+
+#define TCL_SERVER_VERSION "TCL Server 0.1"
+#define TCL_MAX_LINE (4096)
+
+typedef struct tcl_connection_s {
+ int tc_linedrop;
+ int tc_lineoffset;
+ char tc_line[TCL_MAX_LINE];
+
+ int tc_outerror; /* flag an output error */
+} tcl_connection_t;
+
+extern Jim_Interp *interp;
+static unsigned short tcl_port = 0;
+
+/* commands */
+static int handle_tcl_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+/* handlers */
+static int tcl_new_connection(connection_t *connection);
+static int tcl_input(connection_t *connection);
+static int tcl_output(connection_t *connection, const void *buf, ssize_t len);
+static int tcl_closed(connection_t *connection);
+
+/* write data out to a socket.
+ *
+ * this is a blocking write, so the return value must equal the length, if
+ * that is not the case then flag the connection with an output error.
+ */
+int tcl_output(connection_t *connection, const void *data, ssize_t len)
+{
+ ssize_t wlen;
+ tcl_connection_t *tclc;
+
+ tclc = connection->priv;
+ if (tclc->tc_outerror)
+ return ERROR_SERVER_REMOTE_CLOSED;
+
+ wlen = write_socket(connection->fd, data, len);
+ if (wlen == len)
+ return ERROR_OK;
+
+ LOG_ERROR("error during write: %d != %d", wlen, len);
+ tclc->tc_outerror = 1;
+ return ERROR_SERVER_REMOTE_CLOSED;
+}
+
+
+/* connections */
+static int tcl_new_connection(connection_t *connection)
+{
+ int i;
+ tcl_connection_t *tclc;
+
+ tclc = malloc(sizeof(tcl_connection_t));
+ if (tclc == NULL)
+ return ERROR_CONNECTION_REJECTED;
+
+ memset(tclc, 0, sizeof(tcl_connection_t));
+ connection->priv = tclc;
+ return ERROR_OK;
+}
+
+static int tcl_input(connection_t *connection)
+{
+ int retval;
+ int i;
+ ssize_t rlen;
+ const char *result;
+ int reslen;
+ tcl_connection_t *tclc;
+ char in[256];
+
+ rlen = read_socket(connection->fd, &in, sizeof(in));
+ if (rlen <= 0) {
+ if (rlen < 0)
+ LOG_ERROR("error during read: %s", strerror(errno));
+ return ERROR_SERVER_REMOTE_CLOSED;
+ }
+
+ tclc = connection->priv;
+ if (tclc == NULL)
+ return ERROR_CONNECTION_REJECTED;
+
+ /* push as much data into the line as possible */
+ for (i = 0; i < rlen; i++)
+ {
+ if (!isprint(in[i]) && !isspace(in[i]))
+ {
+ /* drop this line */
+ tclc->tc_linedrop = 1;
+ continue;
+ }
+
+ /* buffer the data */
+ tclc->tc_line[tclc->tc_lineoffset] = in[i];
+ if (tclc->tc_lineoffset < TCL_MAX_LINE)
+ tclc->tc_lineoffset++;
+ else
+ tclc->tc_linedrop = 1;
+
+ if (in[i] != '\n')
+ continue;
+
+ /* process the line */
+ if (tclc->tc_linedrop) {
+#define ESTR "line too long\n"
+ retval = tcl_output(connection, ESTR, sizeof(ESTR));
+ if (retval != ERROR_OK)
+ return retval;
+#undef ESTR
+ } else {
+ tclc->tc_line[tclc->tc_lineoffset-1] = '\0';
+ retval = Jim_Eval(interp, tclc->tc_line);
+ result = Jim_GetString(Jim_GetResult(interp), &reslen);
+ retval = tcl_output(connection, result, reslen);
+ if (retval != ERROR_OK)
+ return retval;
+ if (memchr(result, '\n', reslen) == NULL)
+ tcl_output(connection, "\n", 1);
+ }
+ tclc->tc_lineoffset = 0;
+ tclc->tc_linedrop = 0;
+ }
+
+ return ERROR_OK;
+}
+
+static int tcl_closed(connection_t *connection)
+{
+ /* cleanup connection context */
+ if (connection->priv) {
+ free(connection->priv);
+ connection->priv = NULL;
+ }
+ return ERROR_OK;
+}
+
+int tcl_init(void)
+{
+ int retval;
+
+ if (tcl_port == 0)
+ {
+ LOG_WARNING("no tcl port specified, using default port 5555");
+ tcl_port = 5555;
+ }
+
+ retval = add_service("tcl", CONNECTION_TCL, tcl_port, 1, tcl_new_connection, tcl_input, tcl_closed, NULL);
+ return retval;
+}
+
+
+int tcl_register_commands(command_context_t *cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "tcl_port", handle_tcl_port_command, COMMAND_CONFIG, "");
+ return ERROR_OK;
+}
+
+static int handle_tcl_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 1) {
+ tcl_port = strtoul(args[0], NULL, 0);
+ }
+ return ERROR_OK;
+}
diff --git a/src/server/tcl_server.h b/src/server/tcl_server.h new file mode 100644 index 00000000..7ce8f2fb --- /dev/null +++ b/src/server/tcl_server.h @@ -0,0 +1,28 @@ +/***************************************************************************
+ * Copyright (C) 2008 *
+ * *
+ * 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 02111-1307, USA. *
+ ***************************************************************************/
+
+#ifndef _TCL_SERVER_H_
+#define _TCL_SERVER_H_
+
+#include "server.h"
+
+extern int tcl_init(void);
+extern int tcl_register_commands(command_context_t *cmd_ctx);
+
+#endif /* _TCL_SERVER_H_ */
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