some minor messages fixes
+Sat Feb 16 02:46:43 CET 2002 Johnny Mnemonic <johnny@themnemonic.org>
+
+ * Cleaned up the listening sockets code, preparing for the rehash
+ support. Affected file is silcd/server.c.
+
+ * Fixed some output messages. Affected files are silcd/silcd.c,
+ and silcd/server.c.
+
Fri Feb 15 19:10:20 EET 2002 Pekka Riikonen <priikone@silcnet.org>
* Create lib/doc/silcrng_intro.html document as introduction
Fri Feb 15 19:10:20 EET 2002 Pekka Riikonen <priikone@silcnet.org>
* Create lib/doc/silcrng_intro.html document as introduction
Author: Pekka Riikonen <priikone@silcnet.org>
Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 1997 - 2001 Pekka Riikonen
+ Copyright (C) 1997 - 2002 Pekka Riikonen
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
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
*/
/*
* This is the actual SILC server than handles everything relating to
*/
/*
* This is the actual SILC server than handles everything relating to
- * servicing the SILC connections. This is also a SILC router as a router
+ * servicing the SILC connections. This is also a SILC router as a router
* is also normal server.
*/
/* $Id$ */
* is also normal server.
*/
/* $Id$ */
/* Initializes the entire SILC server. This is called always before running
the server. This is called only once at the initialization of the program.
/* Initializes the entire SILC server. This is called always before running
the server. This is called only once at the initialization of the program.
- This binds the server to its listenning port. After this function returns
- one should call silc_server_run to start the server. This returns TRUE
+ This binds the server to its listenning port. After this function returns
+ one should call silc_server_run to start the server. This returns TRUE
when everything is ok to run the server. Configuration file must be
read and parsed before calling this. */
int silc_server_init(SilcServer server)
{
when everything is ok to run the server. Configuration file must be
read and parsed before calling this. */
int silc_server_init(SilcServer server)
{
- int *sock = NULL, sock_count, i;
SilcServerID *id;
SilcServerEntry id_entry;
SilcIDListPurge purge;
SilcServerID *id;
SilcServerEntry id_entry;
SilcIDListPurge purge;
/* Set public and private keys */
if (!server->config->server_info ||
/* Set public and private keys */
if (!server->config->server_info ||
- !server->config->server_info->public_key ||
+ !server->config->server_info->public_key ||
!server->config->server_info->private_key) {
SILC_LOG_ERROR(("Server public key and/or private key does not exist"));
return FALSE;
!server->config->server_info->private_key) {
SILC_LOG_ERROR(("Server public key and/or private key does not exist"));
return FALSE;
silc_pkcs_public_key_set(server->pkcs, server->public_key);
silc_pkcs_private_key_set(server->pkcs, server->private_key);
silc_pkcs_public_key_set(server->pkcs, server->public_key);
silc_pkcs_private_key_set(server->pkcs, server->private_key);
- /* Create a listening server. Note that our server can listen on multiple
- ports. All listeners are created here and now. */
- sock_count = 0;
- while (1) {
- int tmp;
-
- tmp = silc_net_create_server(server->config->server_info->port,
- server->config->server_info->server_ip);
-
- if (tmp < 0) {
- SILC_LOG_ERROR(("Could not create server listener: %s on %hd",
- server->config->server_info->server_ip,
- server->config->server_info->port));
- goto err;
- }
-
- sock = silc_realloc(sock, sizeof(*sock) * (sock_count + 1));
- sock[sock_count] = tmp;
- sock_count++;
- break;
+ /* Create a listening server */
+ sock = silc_net_create_server(server->config->server_info->port,
+ server->config->server_info->server_ip);
+ /* XXX What if I want my errno? Where is my errno?!? -Johnny */
+ if (sock < 0) {
+ SILC_LOG_ERROR(("Could not create server listener: %s on %hu",
+ server->config->server_info->server_ip,
+ server->config->server_info->port));
+ goto err;
}
/* Initialize ID caches */
}
/* Initialize ID caches */
- server->local_list->clients =
+ server->local_list->clients =
silc_idcache_alloc(0, SILC_ID_CLIENT, silc_idlist_client_destructor);
server->local_list->servers = silc_idcache_alloc(0, SILC_ID_SERVER, NULL);
server->local_list->channels = silc_idcache_alloc(0, SILC_ID_CHANNEL, NULL);
silc_idcache_alloc(0, SILC_ID_CLIENT, silc_idlist_client_destructor);
server->local_list->servers = silc_idcache_alloc(0, SILC_ID_SERVER, NULL);
server->local_list->channels = silc_idcache_alloc(0, SILC_ID_CHANNEL, NULL);
- /* These are allocated for normal server as well as these hold some
- global information that the server has fetched from its router. For
+ /* These are allocated for normal server as well as these hold some
+ global information that the server has fetched from its router. For
router these are used as they are supposed to be used on router. */
router these are used as they are supposed to be used on router. */
- server->global_list->clients =
+ server->global_list->clients =
silc_idcache_alloc(0, SILC_ID_CLIENT, silc_idlist_client_destructor);
server->global_list->servers = silc_idcache_alloc(0, SILC_ID_SERVER, NULL);
server->global_list->channels = silc_idcache_alloc(0, SILC_ID_CHANNEL, NULL);
silc_idcache_alloc(0, SILC_ID_CLIENT, silc_idlist_client_destructor);
server->global_list->servers = silc_idcache_alloc(0, SILC_ID_SERVER, NULL);
server->global_list->channels = silc_idcache_alloc(0, SILC_ID_CHANNEL, NULL);
- /* Allocate the entire socket list that is used in server. Eventually
- all connections will have entry in this table (it is a table of
- pointers to the actual object that is allocated individually
+ /* Allocate the entire socket list that is used in server. Eventually
+ all connections will have entry in this table (it is a table of
+ pointers to the actual object that is allocated individually
later). */
server->sockets = silc_calloc(SILC_SERVER_MAX_CONNECTIONS,
sizeof(*server->sockets));
later). */
server->sockets = silc_calloc(SILC_SERVER_MAX_CONNECTIONS,
sizeof(*server->sockets));
- for (i = 0; i < sock_count; i++) {
SilcSocketConnection newsocket = NULL;
/* Set socket to non-blocking mode */
SilcSocketConnection newsocket = NULL;
/* Set socket to non-blocking mode */
- silc_net_set_socket_nonblock(sock[i]);
- server->sock = sock[i];
-
+ silc_net_set_socket_nonblock(sock);
+ server->sock = sock;
+
/* Add ourselves also to the socket table. The entry allocated above
is sent as argument for fast referencing in the future. */
/* Add ourselves also to the socket table. The entry allocated above
is sent as argument for fast referencing in the future. */
- silc_socket_alloc(sock[i], SILC_SOCKET_TYPE_SERVER, NULL, &newsocket);
- server->sockets[sock[i]] = newsocket;
-
+ silc_socket_alloc(sock, SILC_SOCKET_TYPE_SERVER, NULL, &newsocket);
+ server->sockets[sock] = newsocket;
+
/* Perform name and address lookups to resolve the listenning address
and port. */
/* Perform name and address lookups to resolve the listenning address
and port. */
- if (!silc_net_check_local_by_sock(sock[i], &newsocket->hostname,
+ if (!silc_net_check_local_by_sock(sock, &newsocket->hostname,
&newsocket->ip)) {
if ((server->config->require_reverse_lookup && !newsocket->hostname) ||
!newsocket->ip) {
&newsocket->ip)) {
if ((server->config->require_reverse_lookup && !newsocket->hostname) ||
!newsocket->ip) {
if (!newsocket->hostname)
newsocket->hostname = strdup(newsocket->ip);
}
if (!newsocket->hostname)
newsocket->hostname = strdup(newsocket->ip);
}
- newsocket->port = silc_net_get_local_port(sock[i]);
+ newsocket->port = silc_net_get_local_port(sock);
/* Create a Server ID for the server. */
silc_id_create_server_id(newsocket->ip, newsocket->port, server->rng, &id);
if (!id)
goto err;
/* Create a Server ID for the server. */
silc_id_create_server_id(newsocket->ip, newsocket->port, server->rng, &id);
if (!id)
goto err;
server->id = id;
server->id_string = silc_id_id2str(id, SILC_ID_SERVER);
server->id_string_len = silc_id_get_len(id, SILC_ID_SERVER);
server->id_type = SILC_ID_SERVER;
server->server_name = server->config->server_info->server_name;
server->id = id;
server->id_string = silc_id_id2str(id, SILC_ID_SERVER);
server->id_string_len = silc_id_get_len(id, SILC_ID_SERVER);
server->id_type = SILC_ID_SERVER;
server->server_name = server->config->server_info->server_name;
- /* Add ourselves to the server list. We don't have a router yet
- beacuse we haven't established a route yet. It will be done later.
+ /* Add ourselves to the server list. We don't have a router yet
+ beacuse we haven't established a route yet. It will be done later.
For now, NULL is sent as router. This allocates new entry to
the ID list. */
For now, NULL is sent as router. This allocates new entry to
the ID list. */
silc_idlist_add_server(server->local_list,
server->config->server_info->server_name,
server->server_type, server->id, NULL, NULL);
silc_idlist_add_server(server->local_list,
server->config->server_info->server_name,
server->server_type, server->id, NULL, NULL);
goto err;
}
id_entry->data.status |= SILC_IDLIST_STATUS_REGISTERED;
goto err;
}
id_entry->data.status |= SILC_IDLIST_STATUS_REGISTERED;
-
- /* Put the allocated socket pointer also to the entry allocated above
+
+ /* Put the allocated socket pointer also to the entry allocated above
for fast back-referencing to the socket list. */
newsocket->user_data = (void *)id_entry;
id_entry->connection = (void *)newsocket;
server->id_entry = id_entry;
for fast back-referencing to the socket list. */
newsocket->user_data = (void *)id_entry;
id_entry->connection = (void *)newsocket;
server->id_entry = id_entry;
/* Register protocols */
silc_server_protocols_register();
/* Register protocols */
silc_server_protocols_register();
timeout. It expires as soon as the caller calls silc_server_run. This
task performs authentication protocol and key exchange with our
primary router. */
timeout. It expires as soon as the caller calls silc_server_run. This
task performs authentication protocol and key exchange with our
primary router. */
- silc_schedule_task_add(server->schedule, sock[0],
+ silc_schedule_task_add(server->schedule, sock,
silc_server_connect_to_router,
(void *)server, 0, 1,
SILC_TASK_TIMEOUT,
SILC_TASK_PRI_NORMAL);
/* Add listener task to the scheduler. This task receives new connections
silc_server_connect_to_router,
(void *)server, 0, 1,
SILC_TASK_TIMEOUT,
SILC_TASK_PRI_NORMAL);
/* Add listener task to the scheduler. This task receives new connections
- to the server. This task remains on the queue until the end of the
+ to the server. This task remains on the queue until the end of the
- silc_schedule_task_add(server->schedule, sock[0],
+ silc_schedule_task_add(server->schedule, sock,
silc_server_accept_new_connection,
silc_server_accept_new_connection,
SILC_TASK_FD,
SILC_TASK_PRI_NORMAL);
server->listenning = TRUE;
SILC_TASK_FD,
SILC_TASK_PRI_NORMAL);
server->listenning = TRUE;
purge->cache = server->local_list->clients;
purge->schedule = server->schedule;
purge->timeout = 600;
purge->cache = server->local_list->clients;
purge->schedule = server->schedule;
purge->timeout = 600;
- silc_schedule_task_add(purge->schedule, 0,
+ silc_schedule_task_add(purge->schedule, 0,
silc_idlist_purge,
(void *)purge, purge->timeout, 0,
SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
silc_idlist_purge,
(void *)purge, purge->timeout, 0,
SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
purge->cache = server->global_list->clients;
purge->schedule = server->schedule;
purge->timeout = 300;
purge->cache = server->global_list->clients;
purge->schedule = server->schedule;
purge->timeout = 300;
- silc_schedule_task_add(purge->schedule, 0,
+ silc_schedule_task_add(purge->schedule, 0,
silc_idlist_purge,
(void *)purge, purge->timeout, 0,
SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
silc_idlist_purge,
(void *)purge, purge->timeout, 0,
SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
- for (i = 0; i < sock_count; i++)
- silc_net_close_server(sock[i]);
-
+ silc_net_close_server(sock);
struct group *gr;
char *user, *group;
struct group *gr;
char *user, *group;
- if (!server->config->server_info->user || !server->config->server_info->group) {
- fprintf(stderr, "Error:"
+ /* Get the values given for user and group in configuration file */
+ user = server->config->server_info->user;
+ group = server->config->server_info->group;
+
+ if (!user || !group) {
+ fprintf(stderr, "Error:" /* XXX update this error message */
"\tSILC server must not be run as root. For the security of your\n"
"\tsystem it is strongly suggested that you run SILC under dedicated\n"
"\tuser account. Modify the [Identity] configuration section to run\n"
"\tSILC server must not be run as root. For the security of your\n"
"\tsystem it is strongly suggested that you run SILC under dedicated\n"
"\tuser account. Modify the [Identity] configuration section to run\n"
- /* Get the values given for user and group in configuration file */
- user=server->config->server_info->user;
- group=server->config->server_info->group;
-
- /* Check whether the user/group information is text */
- if (atoi(user)!=0 || atoi(group)!=0) {
- SILC_LOG_DEBUG(("Invalid user and/or group information"));
- SILC_LOG_DEBUG(("User and/or group given as number"));
+ /* Check whether the user/group does not begin with a number */
+ if (isdigit(user[0]) || isdigit(group[0])) {
+ SILC_LOG_DEBUG(("User and/or group starts with a number"));
fprintf(stderr, "Invalid user and/or group information\n");
fprintf(stderr, "Please assign them as names, not numbers\n");
exit(1);
}
fprintf(stderr, "Invalid user and/or group information\n");
fprintf(stderr, "Please assign them as names, not numbers\n");
exit(1);
}
- /* Catch the nasty incident of string "0" returning 0 from atoi */
- if (strcmp("0", user)==0 || strcmp("0", group)==0) {
- SILC_LOG_DEBUG(("User and/or group configured to 0. Unacceptable"));
- fprintf(stderr, "User and/or group configured to 0. Exiting\n");
- exit(1);
- }
-
- if (!(pw=getpwnam(user))) {
- fprintf(stderr, "No such user %s found\n", user);
+ if (!(pw = getpwnam(user))) {
+ fprintf(stderr, "Error: No such user %s found.\n", user);
-
- if (!(gr=getgrnam(group))) {
- fprintf(stderr, "No such group %s found\n", group);
+ if (!(gr = getgrnam(group))) {
+ fprintf(stderr, "Error: No such group %s found.\n", group);
exit(1);
}
/* Check whether user and/or group is set to root. If yes, exit
immediately. Otherwise, setgid and setuid server to user.group */
exit(1);
}
/* Check whether user and/or group is set to root. If yes, exit
immediately. Otherwise, setgid and setuid server to user.group */
- if (gr->gr_gid==0 || pw->pw_uid==0) {
+ if ((gr->gr_gid == 0) || (pw->pw_uid == 0)) {
fprintf(stderr, "Error:"
"\tSILC server must not be run as root. For the security of your\n"
"\tsystem it is strongly suggested that you run SILC under dedicated\n"
"\tuser account. Modify the [Identity] configuration section to run\n"
"\tthe server as non-root user.\n");
exit(1);
fprintf(stderr, "Error:"
"\tSILC server must not be run as root. For the security of your\n"
"\tsystem it is strongly suggested that you run SILC under dedicated\n"
"\tuser account. Modify the [Identity] configuration section to run\n"
"\tthe server as non-root user.\n");
exit(1);
- } else {
- SILC_LOG_DEBUG(("Changing to group %s", group));
- if (setgid(gr->gr_gid)==0) {
- SILC_LOG_DEBUG(("Setgid to %s", group));
- } else {
- SILC_LOG_DEBUG(("Setgid to %s failed", group));
- fprintf(stderr, "Tried to setgid %s but no such group. Exiting\n",
- group);
- exit(1);
- }
+ }
+
+ SILC_LOG_DEBUG(("Changing to group %s (gid=%u)", group, gr->gr_gid));
+ if (setgid(gr->gr_gid) != 0) {
+ fprintf(stderr, "Error: Failed setgid() to %s (gid=%u). Exiting.\n",
+ group, gr->gr_gid);
+ exit(1);
+ }
#if defined HAVE_SETGROUPS && defined HAVE_INITGROUPS
#if defined HAVE_SETGROUPS && defined HAVE_INITGROUPS
- if (setgroups(0, NULL)!=0) {
- SILC_LOG_DEBUG(("Setgroups to NULL failed"));
- fprintf(stderr, "Tried to setgroups NULL but failed. Exiting\n");
- exit(1);
- }
- if (initgroups(user, gr->gr_gid)!=0) {
- SILC_LOG_DEBUG(("Initgroups to user %s (gid=%d) failed", user, gr->gr_gid));
- fprintf(stderr, "Tried to initgroups %s (gid=%d) but no such user. Exiting\n",
- user, gr->gr_gid);
- exit(1);
- }
+ SILC_LOG_DEBUG(("Removing supplementary groups"));
+ if (setgroups(0, NULL) != 0) {
+ fprintf(stderr, "Error: Failed setgroups() to NULL. Exiting.\n");
+ exit(1);
+ }
+ SILC_LOG_DEBUG(("Setting supplementary groups for user %s", user));
+ if (initgroups(user, gr->gr_gid) != 0) {
+ fprintf(stderr, "Error: Failed initgroups() for user %s (gid=%u). "
+ "Exiting.\n", user, gr->gr_gid);
+ exit(1);
+ }
- SILC_LOG_DEBUG(("Changing to user %s", user));
- if (setuid(pw->pw_uid)==0) {
- SILC_LOG_DEBUG(("Setuid to %s", user));
- } else {
- SILC_LOG_DEBUG(("Setuid to %s failed", user));
- fprintf(stderr, "Tried to setuid %s but no such user. Exiting\n",
- user);
- exit(1);
- }
+ SILC_LOG_DEBUG(("Changing to user %s (uid=%u)", user, pw->pw_uid));
+ if (setuid(pw->pw_uid) != 0) {
+ fprintf(stderr, "Error: Failed to setuid() to %s (gid=%u). Exiting.\n",
+ user, pw->pw_uid);
+ exit(1);
-/* The heart of the server. This runs the scheduler thus runs the server.
+/* The heart of the server. This runs the scheduler thus runs the server.
When this returns the server has been stopped and the program will
be terminated. */
When this returns the server has been stopped and the program will
be terminated. */
silc_schedule(server->schedule);
}
silc_schedule(server->schedule);
}
-/* Stops the SILC server. This function is used to shutdown the server.
- This is usually called after the scheduler has returned. After stopping
+/* Stops the SILC server. This function is used to shutdown the server.
+ This is usually called after the scheduler has returned. After stopping
the server one should call silc_server_free. */
void silc_server_stop(SilcServer server)
the server one should call silc_server_free. */
void silc_server_stop(SilcServer server)
proto_ctx->sock = newsocket;
proto_ctx->rng = server->rng;
proto_ctx->responder = FALSE;
proto_ctx->sock = newsocket;
proto_ctx->rng = server->rng;
proto_ctx->responder = FALSE;
/* Perform key exchange protocol. silc_server_connect_to_router_second
will be called after the protocol is finished. */
silc_protocol_alloc(SILC_PROTOCOL_SERVER_KEY_EXCHANGE,
/* Perform key exchange protocol. silc_server_connect_to_router_second
will be called after the protocol is finished. */
silc_protocol_alloc(SILC_PROTOCOL_SERVER_KEY_EXCHANGE,
/* Register the connection for network input and output. This sets
that scheduler will listen for incoming packets for this connection
/* Register the connection for network input and output. This sets
that scheduler will listen for incoming packets for this connection
- and sets that outgoing packets may be sent to this connection as
+ and sets that outgoing packets may be sent to this connection as
well. However, this doesn't set the scheduler for outgoing traffic,
it will be set separately by calling SILC_SET_CONNECTION_FOR_OUTPUT,
later when outgoing data is available. */
context = (void *)server;
SILC_REGISTER_CONNECTION_FOR_IO(sock);
well. However, this doesn't set the scheduler for outgoing traffic,
it will be set separately by calling SILC_SET_CONNECTION_FOR_OUTPUT,
later when outgoing data is available. */
context = (void *)server;
SILC_REGISTER_CONNECTION_FOR_IO(sock);
/* Run the protocol */
silc_protocol_execute(protocol, server->schedule, 0, 0);
}
/* Run the protocol */
silc_protocol_execute(protocol, server->schedule, 0, 0);
}
/* Generic routine to use connect to a router. */
SILC_TASK_CALLBACK(silc_server_connect_router)
/* Generic routine to use connect to a router. */
SILC_TASK_CALLBACK(silc_server_connect_router)
SilcServerConnection sconn = (SilcServerConnection)context;
SilcServer server = sconn->server;
int sock;
SilcServerConnection sconn = (SilcServerConnection)context;
SilcServer server = sconn->server;
int sock;
SILC_LOG_ERROR(("Could not connect to router %s:%d",
sconn->remote_host, sconn->remote_port));
if (!sconn->no_reconnect)
SILC_LOG_ERROR(("Could not connect to router %s:%d",
sconn->remote_host, sconn->remote_port));
if (!sconn->no_reconnect)
- silc_schedule_task_add(server->schedule, fd,
+ silc_schedule_task_add(server->schedule, fd,
silc_server_connect_to_router_retry,
silc_server_connect_to_router_retry,
- context, 0, 1, SILC_TASK_TIMEOUT,
+ context, 0, 1, SILC_TASK_TIMEOUT,
SILC_TASK_PRI_NORMAL);
return;
}
SILC_TASK_PRI_NORMAL);
return;
}
/* Register timeout task. If the protocol is not executed inside
this timelimit the connection will be terminated. */
/* Register timeout task. If the protocol is not executed inside
this timelimit the connection will be terminated. */
- proto_ctx->timeout_task =
- silc_schedule_task_add(server->schedule, sock->sock,
+ proto_ctx->timeout_task =
+ silc_schedule_task_add(server->schedule, sock->sock,
silc_server_timeout_remote,
(void *)server, 15, 0, /* XXX hardcoded */
SILC_TASK_TIMEOUT,
silc_server_timeout_remote,
(void *)server, 15, 0, /* XXX hardcoded */
SILC_TASK_TIMEOUT,
SILC_TASK_CALLBACK(silc_server_connect_to_router_final)
{
SilcProtocol protocol = (SilcProtocol)context;
SILC_TASK_CALLBACK(silc_server_connect_to_router_final)
{
SilcProtocol protocol = (SilcProtocol)context;
- SilcServerConnAuthInternalContext *ctx =
+ SilcServerConnAuthInternalContext *ctx =
(SilcServerConnAuthInternalContext *)protocol->context;
SilcServer server = (SilcServer)ctx->server;
SilcServerConnection sconn = (SilcServerConnection)ctx->context;
(SilcServerConnAuthInternalContext *)protocol->context;
SilcServer server = (SilcServer)ctx->server;
SilcServerConnection sconn = (SilcServerConnection)ctx->context;
- /* Add a task to the queue. This task receives new connections to the
+ /* Add a task to the queue. This task receives new connections to the
server. This task remains on the queue until the end of the program. */
if (!server->listenning && !sconn->backup) {
server. This task remains on the queue until the end of the program. */
if (!server->listenning && !sconn->backup) {
- silc_schedule_task_add(server->schedule, server->sock,
+ silc_schedule_task_add(server->schedule, server->sock,
silc_server_accept_new_connection,
silc_server_accept_new_connection,
SILC_TASK_FD,
SILC_TASK_PRI_NORMAL);
server->listenning = TRUE;
SILC_TASK_FD,
SILC_TASK_PRI_NORMAL);
server->listenning = TRUE;
printf("SILCd Secure Internet Live Conferencing daemon, "
"version %s (base: SILC Toolkit %s)\n",
silc_dist_version, silc_version);
printf("SILCd Secure Internet Live Conferencing daemon, "
"version %s (base: SILC Toolkit %s)\n",
silc_dist_version, silc_version);
- printf("(c) 1997 - 2001 Pekka Riikonen "
+ printf("(c) 1997 - 2002 Pekka Riikonen "
"<priikone@silcnet.org>\n");
exit(0);
break;
"<priikone@silcnet.org>\n");
exit(0);
break;