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weechat-ruby.c
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weechat-ruby.c
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/*
* Copyright (c) 2003-2006 by FlashCode <flashcode@flashtux.org>
* See README for License detail, AUTHORS for developers list.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* wee-ruby.c: Ruby plugin support for WeeChat */
#include <ruby.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#undef _
#include "../../weechat-plugin.h"
#include "../weechat-script.h"
char plugin_name[] = "Ruby";
char plugin_version[] = "0.1";
char plugin_description[] = "Ruby scripts support";
t_weechat_plugin *ruby_plugin;
t_plugin_script *ruby_scripts = NULL;
t_plugin_script *ruby_current_script = NULL;
char *ruby_current_script_filename = NULL;
VALUE mWeechat, mWeechatOutputs;
#define MOD_NAME_PREFIX "WeechatRubyModule"
int modnum = 0;
/*
* protect_funcall0 :
*
*/
static VALUE
rb_funcall0 (VALUE args)
{
VALUE recv = rb_ary_shift (args);
VALUE func = rb_ary_shift (args);
VALUE argc = rb_ary_shift (args);
return rb_funcall2(recv, rb_intern(STR2CSTR(func)), NUM2INT(argc), RARRAY(args)->ptr);
}
/*
* protect_rescue0 :
*
*/
VALUE
rb_rescue0 (VALUE func, VALUE error_info)
{
VALUE str = rb_funcall(error_info, rb_intern("to_s"), 0, NULL);
VALUE errinfo = rb_inspect(ruby_errinfo);
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to run function \"%s\"",
STR2CSTR(func));
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: %s", STR2CSTR(str));
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: %s", STR2CSTR(errinfo));
//rb_backtrace ();
return INT2FIX(PLUGIN_RC_KO);
}
/*
* rb_rescue_funcall :
*
*/
VALUE
rb_rescue_funcall (VALUE recv, VALUE func, int argc, ...)
{
va_list ap;
VALUE argv;
argv = rb_ary_new ();
rb_ary_push (argv, recv);
rb_ary_push (argv, func);
rb_ary_push (argv, INT2FIX(argc));
if (argc > 0)
{
int i;
va_start(ap, argc);
for (i = 0; i < argc; i++)
rb_ary_push (argv, va_arg(ap, VALUE));
va_end(ap);
}
VALUE ret = rb_rescue(rb_funcall0, argv, rb_rescue0, func);
if (NIL_P(ret))
ret = INT2FIX(PLUGIN_RC_KO);
return ret;
}
/*
* weechat_ruby_exec: execute a Ruby script
*/
int
weechat_ruby_exec (t_weechat_plugin *plugin,
t_plugin_script *script,
char *function, char *server, char *arguments)
{
/* make gcc happy */
(void) plugin;
VALUE ruby_retcode;
ruby_current_script = script;
ruby_retcode = rb_rescue_funcall ((VALUE) script->interpreter, rb_str_new2(function), 2,
rb_str_new2((server == NULL) ? "" : server),
rb_str_new2((arguments == NULL) ? "" : arguments));
return NUM2INT(ruby_retcode);
}
/*
* weechat_ruby_handler: general message and command handler for Ruby
*/
int
weechat_ruby_handler (t_weechat_plugin *plugin,
char *server, char *command, char *arguments,
char *handler_args, void *handler_pointer)
{
/* make gcc happy */
(void) command;
return weechat_ruby_exec (plugin, (t_plugin_script *)handler_pointer,
handler_args, server, arguments);
}
/*
* weechat_ruby_register: startup function for all WeeChat Ruby scripts
*/
static VALUE
weechat_ruby_register (VALUE class, VALUE name, VALUE version,
VALUE shutdown_func, VALUE description)
{
char *c_name, *c_version, *c_shutdown_func, *c_description;
/* make gcc happy */
(void) class;
if (NIL_P (name) || NIL_P (version) || NIL_P (shutdown_func) || NIL_P (description))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"register\" function");
return INT2FIX (0);
}
Check_Type (name, T_STRING);
Check_Type (version, T_STRING);
Check_Type (shutdown_func, T_STRING);
Check_Type (description, T_STRING);
c_name = STR2CSTR (name);
c_version = STR2CSTR (version);
c_shutdown_func = STR2CSTR (shutdown_func);
c_description = STR2CSTR (description);
if (weechat_script_search (ruby_plugin, &ruby_scripts, c_name))
{
/* error: another scripts already exists with this name! */
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to register "
"\"%s\" script (another script "
"already exists with this name)",
c_name);
return INT2FIX (0);
}
/* register script */
ruby_current_script = weechat_script_add (ruby_plugin,
&ruby_scripts,
(ruby_current_script_filename) ?
ruby_current_script_filename : "",
c_name, c_version, c_shutdown_func,
c_description);
if (ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby: registered script \"%s\", "
"version %s (%s)",
c_name, c_version, c_description);
}
else
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to load script "
"\"%s\" (not enough memory)",
c_name);
return INT2FIX (0);
}
return INT2FIX (1);
}
/*
* weechat_ruby_print: print message into a buffer (current or specified one)
*/
static VALUE
weechat_ruby_print (int argc, VALUE *argv, VALUE class)
{
VALUE message, channel_name, server_name;
char *c_message, *c_channel_name, *c_server_name;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to print message, "
"script not initialized");
return INT2FIX (0);
}
message = Qnil;
channel_name = Qnil;
server_name = Qnil;
c_message = NULL;
c_channel_name = NULL;
c_server_name = NULL;
rb_scan_args (argc, argv, "12", &message, &channel_name, &server_name);
if (NIL_P (message))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"print\" function");
return INT2FIX (0);
}
Check_Type (message, T_STRING);
c_message = STR2CSTR (message);
if (!NIL_P (channel_name))
{
Check_Type (channel_name, T_STRING);
c_channel_name = STR2CSTR (channel_name);
}
if (!NIL_P (server_name))
{
Check_Type (server_name, T_STRING);
c_server_name = STR2CSTR (server_name);
}
ruby_plugin->printf (ruby_plugin,
c_server_name, c_channel_name,
"%s", c_message);
return INT2FIX (1);
}
/*
* weechat_ruby_print_infobar: print message to infobar
*/
static VALUE
weechat_ruby_print_infobar (VALUE class, VALUE delay, VALUE message)
{
int c_delay;
char *c_message;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to print infobar message, "
"script not initialized");
return INT2FIX (0);
}
c_delay = 1;
c_message = NULL;
if (NIL_P (delay) || NIL_P (message))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"print_infobar\" function");
return INT2FIX (0);
}
Check_Type (delay, T_FIXNUM);
Check_Type (message, T_STRING);
c_delay = FIX2INT (delay);
c_message = STR2CSTR (message);
ruby_plugin->infobar_printf (ruby_plugin, c_delay, "%s", c_message);
return INT2FIX (1);
}
/*
* weechat_ruby_command: send command to server
*/
static VALUE
weechat_ruby_command (int argc, VALUE *argv, VALUE class)
{
VALUE command, channel_name, server_name;
char *c_command, *c_channel_name, *c_server_name;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to run command, "
"script not initialized");
return INT2FIX (0);
}
command = Qnil;
channel_name = Qnil;
server_name = Qnil;
c_command = NULL;
c_channel_name = NULL;
c_server_name = NULL;
rb_scan_args(argc, argv, "12", &command, &channel_name, &server_name);
if (NIL_P (command))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"command\" function");
return INT2FIX (0);
}
Check_Type (command, T_STRING);
c_command = STR2CSTR (command);
if (!NIL_P (channel_name))
{
Check_Type (channel_name, T_STRING);
c_channel_name = STR2CSTR (channel_name);
}
if (!NIL_P (server_name))
{
Check_Type (server_name, T_STRING);
c_server_name = STR2CSTR (server_name);
}
ruby_plugin->exec_command (ruby_plugin,
c_server_name, c_channel_name,
c_command);
return INT2FIX (1);
}
/*
* weechat_ruby_add_message_handler: add handler for messages
*/
static VALUE
weechat_ruby_add_message_handler (VALUE class, VALUE message, VALUE function)
{
char *c_message, *c_function;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to add message handler, "
"script not initialized");
return INT2FIX (0);
}
c_message = NULL;
c_function = NULL;
if (NIL_P (message) || NIL_P (function))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"add_message_handler\" function");
return INT2FIX (0);
}
Check_Type (message, T_STRING);
Check_Type (function, T_STRING);
c_message = STR2CSTR (message);
c_function = STR2CSTR (function);
if (ruby_plugin->msg_handler_add (ruby_plugin, c_message,
weechat_ruby_handler, c_function,
(void *)ruby_current_script))
return INT2FIX (1);
return INT2FIX (0);
}
/*
* weechat_add_command_handler: define/redefines commands
*/
static VALUE
weechat_ruby_add_command_handler (int argc, VALUE *argv, VALUE class)
{
VALUE command, function, description, arguments, arguments_description;
VALUE completion_template;
char *c_command, *c_function, *c_description, *c_arguments, *c_arguments_description;
char *c_completion_template;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to add command handler, "
"script not initialized");
return INT2FIX (0);
}
command = Qnil;
function = Qnil;
description = Qnil;
arguments = Qnil;
arguments_description = Qnil;
completion_template = Qnil;
c_command = NULL;
c_function = NULL;
c_description = NULL;
c_arguments = NULL;
c_arguments_description = NULL;
c_completion_template = NULL;
rb_scan_args (argc, argv, "24", &command, &function, &description,
&arguments, &arguments_description, &completion_template);
if (NIL_P (command) || NIL_P (function))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"add_command_handler\" function");
return INT2FIX (0);
}
Check_Type (command, T_STRING);
c_command = STR2CSTR (command);
Check_Type (function, T_STRING);
c_function = STR2CSTR (function);
if (!NIL_P (description))
{
Check_Type (description, T_STRING);
c_description = STR2CSTR (description);
}
if (!NIL_P (arguments))
{
Check_Type (arguments, T_STRING);
c_arguments = STR2CSTR (arguments);
}
if (!NIL_P (arguments_description))
{
Check_Type (arguments_description, T_STRING);
c_arguments_description = STR2CSTR (arguments_description);
}
if (!NIL_P (completion_template))
{
Check_Type (completion_template, T_STRING);
c_completion_template = STR2CSTR (completion_template);
}
if (ruby_plugin->cmd_handler_add (ruby_plugin,
c_command,
c_description,
c_arguments,
c_arguments_description,
c_completion_template,
weechat_ruby_handler,
c_function,
(void *)ruby_current_script))
return INT2FIX (1);
return INT2FIX (0);
}
/*
* weechat_remove_handler: remove a handler
*/
static VALUE
weechat_ruby_remove_handler (VALUE class, VALUE command, VALUE function)
{
char *c_command, *c_function;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to remove handler, "
"script not initialized");
return INT2FIX (0);
}
c_command = NULL;
c_function = NULL;
if (NIL_P (command) || NIL_P (function))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"remove_handler\" function");
return INT2FIX (0);
}
Check_Type (command, T_STRING);
Check_Type (function, T_STRING);
c_command = STR2CSTR (command);
c_function = STR2CSTR (function);
weechat_script_remove_handler (ruby_plugin, ruby_current_script,
c_command, c_function);
return INT2FIX (1);
}
/*
* weechat_ruby_get_info: get various infos
*/
static VALUE
weechat_ruby_get_info (int argc, VALUE *argv, VALUE class)
{
char *c_arg, *c_server_name, *info;
VALUE arg, server_name, return_value;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to get info, "
"script not initialized");
return INT2FIX (0);
}
arg = Qnil;
server_name = Qnil;
c_arg = NULL;
c_server_name = NULL;
rb_scan_args (argc, argv, "11", &arg, &server_name);
if (NIL_P (arg))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"get_info\" function");
return INT2FIX (0);
}
Check_Type (arg, T_STRING);
c_arg = STR2CSTR (arg);
if (!NIL_P (server_name))
{
Check_Type (server_name, T_STRING);
c_server_name = STR2CSTR (server_name);
}
if (c_arg)
{
info = ruby_plugin->get_info (ruby_plugin, c_arg, c_server_name);
if (info)
{
return_value = rb_str_new2 (info);
free (info);
return return_value;
}
}
return rb_str_new2 ("");
}
/*
* weechat_ruby_get_dcc_info: get infos about DCC
*/
static VALUE
weechat_ruby_get_dcc_info (VALUE class)
{
t_plugin_dcc_info *dcc_info, *ptr_dcc;
VALUE dcc_list, dcc_list_member;
char timebuffer1[64];
char timebuffer2[64];
struct in_addr in;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to get DCC info, "
"script not initialized");
return INT2FIX (0);
}
dcc_list = rb_ary_new();
if (NIL_P (dcc_list))
return Qnil;
dcc_info = ruby_plugin->get_dcc_info (ruby_plugin);
if (!dcc_info)
return dcc_list;
for(ptr_dcc = dcc_info; ptr_dcc; ptr_dcc = ptr_dcc->next_dcc)
{
strftime(timebuffer1, sizeof(timebuffer1), "%F %T",
localtime(&ptr_dcc->start_time));
strftime(timebuffer2, sizeof(timebuffer2), "%F %T",
localtime(&ptr_dcc->start_transfer));
in.s_addr = htonl(ptr_dcc->addr);
dcc_list_member = rb_hash_new ();
if (!NIL_P (dcc_list_member))
{
rb_hash_aset (dcc_list_member, rb_str_new2("server"),
rb_str_new2(ptr_dcc->server));
rb_hash_aset (dcc_list_member, rb_str_new2("channel"),
rb_str_new2(ptr_dcc->channel));
rb_hash_aset (dcc_list_member, rb_str_new2("type"),
INT2FIX(ptr_dcc->type));
rb_hash_aset (dcc_list_member, rb_str_new2("status"),
INT2FIX(ptr_dcc->status));
rb_hash_aset (dcc_list_member, rb_str_new2("start_time"),
rb_str_new2(timebuffer1));
rb_hash_aset (dcc_list_member, rb_str_new2("start_transfer"),
rb_str_new2(timebuffer2));
rb_hash_aset (dcc_list_member, rb_str_new2("address"),
rb_str_new2(inet_ntoa(in)));
rb_hash_aset (dcc_list_member, rb_str_new2("port"),
INT2FIX(ptr_dcc->port));
rb_hash_aset (dcc_list_member, rb_str_new2("nick"),
rb_str_new2(ptr_dcc->nick));
rb_hash_aset (dcc_list_member, rb_str_new2("remote_file"),
rb_str_new2(ptr_dcc->filename));
rb_hash_aset (dcc_list_member, rb_str_new2("local_file"),
rb_str_new2(ptr_dcc->local_filename));
rb_hash_aset (dcc_list_member, rb_str_new2("filename_suffix"),
INT2FIX(ptr_dcc->filename_suffix));
rb_hash_aset (dcc_list_member, rb_str_new2("size"),
INT2FIX(ptr_dcc->size));
rb_hash_aset (dcc_list_member, rb_str_new2("pos"),
INT2FIX(ptr_dcc->pos));
rb_hash_aset (dcc_list_member, rb_str_new2("start_resume"),
INT2FIX(ptr_dcc->start_resume));
rb_hash_aset (dcc_list_member, rb_str_new2("cps"),
INT2FIX(ptr_dcc->bytes_per_sec));
if (NIL_P (rb_ary_push (dcc_list, dcc_list_member)))
{
rb_gc_unregister_address (&dcc_list_member);
rb_gc_unregister_address (&dcc_list);
ruby_plugin->free_dcc_info (ruby_plugin, dcc_info);
return Qnil;
}
}
else
{
rb_gc_unregister_address (&dcc_list);
ruby_plugin->free_dcc_info (ruby_plugin, dcc_info);
return Qnil;
}
}
ruby_plugin->free_dcc_info (ruby_plugin, dcc_info);
return dcc_list;
}
/*
* weechat_ruby_get_config: get value of a WeeChat config option
*/
static VALUE
weechat_ruby_get_config (VALUE class, VALUE option)
{
char *c_option, *return_value;
VALUE ruby_return_value;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to get config option, "
"script not initialized");
return INT2FIX (0);
}
c_option = NULL;
if (NIL_P (option))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"get_config\" function");
return INT2FIX (0);
}
Check_Type (option, T_STRING);
c_option = STR2CSTR (option);
if (c_option)
{
return_value = ruby_plugin->get_config (ruby_plugin, c_option);
if (return_value)
{
ruby_return_value = rb_str_new2 (return_value);
free (return_value);
return ruby_return_value;
}
}
return rb_str_new2 ("");
}
/*
* weechat_ruby_set_config: set value of a WeeChat config option
*/
static VALUE
weechat_ruby_set_config (VALUE class, VALUE option, VALUE value)
{
char *c_option, *c_value;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to set config option, "
"script not initialized");
return INT2FIX (0);
}
c_option = NULL;
c_value = NULL;
if (NIL_P (option))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"set_config\" function");
return INT2FIX (0);
}
Check_Type (option, T_STRING);
Check_Type (value, T_STRING);
c_option = STR2CSTR (option);
c_value = STR2CSTR (value);
if (c_option && c_value)
{
if (ruby_plugin->set_config (ruby_plugin, c_option, c_value))
return INT2FIX (1);
}
return INT2FIX (0);
}
/*
* weechat_ruby_get_plugin_config: get value of a plugin config option
*/
static VALUE
weechat_ruby_get_plugin_config (VALUE class, VALUE option)
{
char *c_option, *return_value;
VALUE ruby_return_value;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to get plugin config option, "
"script not initialized");
return INT2FIX (0);
}
c_option = NULL;
if (NIL_P (option))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"get_plugin_config\" function");
return INT2FIX (0);
}
Check_Type (option, T_STRING);
c_option = STR2CSTR (option);
if (c_option)
{
return_value = weechat_script_get_plugin_config (ruby_plugin,
ruby_current_script,
c_option);
if (return_value)
{
ruby_return_value = rb_str_new2 (return_value);
free (return_value);
return ruby_return_value;
}
}
return rb_str_new2 ("");
}
/*
* weechat_ruby_set_plugin_config: set value of a plugin config option
*/
static VALUE
weechat_ruby_set_plugin_config (VALUE class, VALUE option, VALUE value)
{
char *c_option, *c_value;
/* make gcc happy */
(void) class;
if (!ruby_current_script)
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to set plugin config option, "
"script not initialized");
return INT2FIX (0);
}
c_option = NULL;
c_value = NULL;
if (NIL_P (option))
{
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: wrong parameters for "
"\"set_plugin_config\" function");
return INT2FIX (0);
}
Check_Type (option, T_STRING);
Check_Type (value, T_STRING);
c_option = STR2CSTR (option);
c_value = STR2CSTR (value);
if (c_option && c_value)
{
if (weechat_script_set_plugin_config (ruby_plugin,
ruby_current_script,
c_option, c_value))
return INT2FIX (1);
}
return INT2FIX (0);
}
/*
* weechat_ruby_output : redirection for stdout and stderr
*/
static VALUE
weechat_ruby_output(VALUE self, VALUE str)
{
/* make gcc happy */
(void) self;
ruby_plugin->printf_server (ruby_plugin,
"Ruby stdout/stderr: %s",
STR2CSTR(str));
return Qnil;
}
/*
* weechat_ruby_load: load a Ruby script
*/
int
weechat_ruby_load (t_weechat_plugin *plugin, char *filename)
{
char modname[64];
VALUE curModule;
VALUE ruby_retcode;
plugin->printf_server (plugin, "Loading Ruby script \"%s\"", filename);
ruby_current_script = NULL;
snprintf(modname, sizeof(modname), "%s%d", MOD_NAME_PREFIX, modnum);
modnum++;
curModule = rb_define_module(modname);
ruby_current_script_filename = strdup (filename);
ruby_retcode = rb_rescue_funcall (curModule, rb_str_new2("load_eval_file"),
1, rb_str_new2(filename));
free (ruby_current_script_filename);
if (NUM2INT(ruby_retcode) != 0)
{
VALUE ruby_eval_error;
switch (NUM2INT(ruby_retcode))
{
case 1:
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to read file \"%s\"",
filename);
break;
case 2:
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: error while loading file \"%s\"",
filename);
break;
case 3:
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: unable to find \"weechat_init\" function in file \"%s\"",
filename);
break;
}
if (NUM2INT(ruby_retcode) == 1 || NUM2INT(ruby_retcode) == 2)
{
ruby_eval_error = rb_iv_get(curModule, "@load_eval_file_error");
if (ruby_eval_error)
ruby_plugin->printf_server (ruby_plugin,
"Ruby error: %s", STR2CSTR(ruby_eval_error));