GNU General Public License for more details.
*/
-/*
- * $Id$
- * $Log$
- * Revision 1.4 2000/07/14 06:11:32 priikone
- * Fixed key-pair generation.
- *
- * Revision 1.3 2000/07/05 06:11:00 priikone
- * Added ~./silc directory checking, autoloading of keys and
- * tweaked the key pair generation function.
- *
- * Revision 1.2 2000/06/30 10:49:48 priikone
- * Added SOCKS4 and SOCKS5 support for SILC client.
- *
- * Revision 1.1.1.1 2000/06/27 11:36:56 priikone
- * Imported from internal CVS/Added Log headers.
- *
- *
- */
+/* $Id$ */
#include "clientincludes.h"
#include "version.h"
+/* Static function prototypes */
+static int silc_client_bad_keys(unsigned char key);
+static void silc_client_clear_input(SilcClientInternal app);
+static void silc_client_process_message(SilcClientInternal app);
+static char *silc_client_parse_command(unsigned char *buffer);
+
+void silc_client_create_main_window(SilcClientInternal app);
+
+/* Static task callback prototypes */
+SILC_TASK_CALLBACK(silc_client_update_clock);
+SILC_TASK_CALLBACK(silc_client_run_commands);
+SILC_TASK_CALLBACK(silc_client_process_key_press);
+
/* Long command line options */
static struct option long_opts[] =
{
{ "private-key", 1, NULL, 'k' },
{ "config-file", 1, NULL, 'f' },
{ "no-silcrc", 0, NULL, 'q' },
+ { "debug", 0, NULL, 'd' },
{ "help", 0, NULL, 'h' },
{ "version", 0, NULL, 'V' },
{ "list-ciphers", 0, NULL, 1 },
static char *opt_pkcs = NULL;
static int opt_bits = 0;
+/* SILC Client operations */
+extern SilcClientOperations ops;
+
/* Prints out the usage of silc client */
void usage()
-k, --private-key=FILE Private key used in SILC\n\
-f, --config-file=FILE Alternate configuration file\n\
-q, --no-silcrc Don't load ~/.silcrc on startup\n\
+ -d, --debug Enable debugging\n\
-h, --help Display this help message\n\
-V, --version Display version\n\
--list-ciphers List supported ciphers\n\
int opt, option_index = 1;
int ret;
SilcClient silc = NULL;
- SilcClientConfig config = NULL;
-
+ SilcClientInternal app = NULL;
+
+ silc_debug = FALSE;
+
if (argc > 1)
{
while ((opt =
getopt_long(argc, argv,
- "s:p:n:c:b:k:f:qhVC",
+ "s:p:n:c:b:k:f:qdhVC",
long_opts, &option_index)) != EOF)
{
switch(opt)
case 'q':
opt_no_silcrc = TRUE;
break;
+ case 'd':
+ silc_debug = TRUE;
+ break;
case 'h':
usage();
exit(0);
signal(SIGFPE, SIG_DFL);
// signal(SIGINT, SIG_IGN);
+#ifdef SOCKS
+ /* Init SOCKS */
+ SOCKSinit(argv[0]);
+#endif
+
if (opt_create_keypair == TRUE) {
/* Create new key pair and exit */
silc_client_create_key_pair(opt_pkcs, opt_bits,
if (!opt_config_file)
opt_config_file = strdup(SILC_CLIENT_CONFIG_FILE);
+ /* Allocate internal application context */
+ app = silc_calloc(1, sizeof(*app));
+
+ /* Allocate new client */
+ app->client = silc = silc_client_alloc(&ops, app);
+ if (!silc)
+ goto fail;
+
/* Read global configuration file. */
- config = silc_client_config_alloc(opt_config_file);
- if (config == NULL)
+ app->config = silc_client_config_alloc(opt_config_file);
+ if (app->config == NULL)
goto fail;
- /* Read local configuration file */
+ /* XXX Read local configuration file */
/* Check ~/.silc directory and public and private keys */
if (silc_client_check_silc_dir() == FALSE)
goto fail;
-#ifdef SOCKS
- /* Init SOCKS */
- SOCKSinit(argv[0]);
-#endif
+ /* Get user information */
+ silc->username = silc_get_username();
+ silc->realname = silc_get_real_name();
- /* Allocate new client */
- ret = silc_client_alloc(&silc);
- if (ret == FALSE)
+ /* Register all configured ciphers, PKCS and hash functions. */
+ app->config->client = (void *)app;
+ silc_client_config_register_ciphers(app->config);
+ silc_client_config_register_pkcs(app->config);
+ silc_client_config_register_hashfuncs(app->config);
+
+ /* Load public and private key */
+ if (silc_client_load_keys(silc) == FALSE)
goto fail;
- /* Initialize the client */
- silc->config = config;
+ /* Initialize the client. This initializes the client library and
+ sets everything ready for silc_client_run. */
ret = silc_client_init(silc);
if (ret == FALSE)
goto fail;
- /* Run the client */
+ /* Register the main task that is used in client. This receives
+ the key pressings. */
+ silc_task_register(silc->io_queue, fileno(stdin),
+ silc_client_process_key_press,
+ (void *)silc, 0, 0,
+ SILC_TASK_FD,
+ SILC_TASK_PRI_NORMAL);
+
+ /* Register timeout task that updates clock every minute. */
+ silc_task_register(silc->timeout_queue, 0,
+ silc_client_update_clock,
+ (void *)silc,
+ silc_client_time_til_next_min(), 0,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_LOW);
+
+ if (app->config->commands) {
+ /* Run user configured commands with timeout */
+ silc_task_register(silc->timeout_queue, 0,
+ silc_client_run_commands,
+ (void *)silc, 0, 1,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_LOW);
+ }
+
+ /* Allocate the input buffer used to save typed characters */
+ app->input_buffer = silc_buffer_alloc(SILC_SCREEN_INPUT_WIN_SIZE);
+ silc_buffer_pull_tail(app->input_buffer,
+ SILC_BUFFER_END(app->input_buffer));
+
+ /* Initialize the screen */
+ silc_client_create_main_window(app);
+ silc_screen_print_coordinates(app->screen, 0);
+
+ /* Run the client. When this returns the application will be
+ terminated. */
silc_client_run(silc);
/* Stop the client. This probably has been done already but it
fail:
if (opt_config_file)
silc_free(opt_config_file);
- if (config)
- silc_client_config_free(config);
+ if (app->config)
+ silc_client_config_free(app->config);
if (silc)
silc_client_free(silc);
exit(1);
}
+
+/* Creates the main window used in SILC client. This is called always
+ at the initialization of the client. If user wants to create more
+ than one windows a new windows are always created by calling
+ silc_client_add_window. */
+
+void silc_client_create_main_window(SilcClientInternal app)
+{
+ void *screen;
+
+ SILC_LOG_DEBUG(("Creating main window"));
+
+ app->screen = silc_screen_init();
+ app->screen->input_buffer = app->input_buffer->data;
+ app->screen->u_stat_line.program_name = silc_name;
+ app->screen->u_stat_line.program_version = silc_version;
+
+ /* Create the actual screen */
+ screen = (void *)silc_screen_create_output_window(app->screen);
+ silc_screen_create_input_window(app->screen);
+ silc_screen_init_upper_status_line(app->screen);
+ silc_screen_init_output_status_line(app->screen);
+
+ app->screen->bottom_line->nickname = silc_get_username();
+ silc_screen_print_bottom_line(app->screen, 0);
+}
+
+/* The main task on SILC client. This processes the key pressings user
+ has made. */
+
+SILC_TASK_CALLBACK(silc_client_process_key_press)
+{
+ SilcClient client = (SilcClient)context;
+ SilcClientInternal app = (SilcClientInternal)client->application;
+ int c;
+
+ /* There is data pending in stdin, this gets it directly */
+ c = wgetch(app->screen->input_win);
+ if (silc_client_bad_keys(c))
+ return;
+
+ SILC_LOG_DEBUG(("Pressed key: %d", c));
+
+ switch(c) {
+ /*
+ * Special character handling
+ */
+ case KEY_UP:
+ case KEY_DOWN:
+ break;
+ case KEY_RIGHT:
+ /* Right arrow */
+ SILC_LOG_DEBUG(("RIGHT"));
+ silc_screen_input_cursor_right(app->screen);
+ break;
+ case KEY_LEFT:
+ /* Left arrow */
+ SILC_LOG_DEBUG(("LEFT"));
+ silc_screen_input_cursor_left(app->screen);
+ break;
+ case KEY_BACKSPACE:
+ case KEY_DC:
+ case '\177':
+ case '\b':
+ /* Backspace */
+ silc_screen_input_backspace(app->screen);
+ break;
+ case '\011':
+ /* Tabulator */
+ break;
+ case KEY_IC:
+ /* Insert switch. Turns on/off insert on input window */
+ silc_screen_input_insert(app->screen);
+ break;
+ case CTRL('j'):
+ case '\r':
+ /* Enter, Return. User pressed enter we are ready to
+ process the message. */
+ silc_client_process_message(app);
+ break;
+ case CTRL('l'):
+ /* Refresh screen, Ctrl^l */
+ silc_screen_refresh_all(app->screen);
+ break;
+ case CTRL('a'):
+ case KEY_HOME:
+ case KEY_BEG:
+ /* Beginning, Home */
+ silc_screen_input_cursor_home(app->screen);
+ break;
+ case CTRL('e'):
+ case KEY_END:
+ /* End */
+ silc_screen_input_cursor_end(app->screen);
+ break;
+ case KEY_LL:
+ /* End */
+ break;
+ case CTRL('g'):
+ /* Bell, Ctrl^g */
+ beep();
+ break;
+ case KEY_DL:
+ case CTRL('u'):
+ /* Delete line */
+ silc_client_clear_input(app);
+ break;
+ default:
+ /*
+ * Other characters
+ */
+ if (c < 32) {
+ /* Control codes are printed as reversed */
+ c = (c & 127) | 64;
+ wattron(app->screen->input_win, A_REVERSE);
+ silc_screen_input_print(app->screen, c);
+ wattroff(app->screen->input_win, A_REVERSE);
+ } else {
+ /* Normal character */
+ silc_screen_input_print(app->screen, c);
+ }
+ }
+
+ silc_screen_print_coordinates(app->screen, 0);
+ silc_screen_refresh_win(app->screen->input_win);
+}
+
+static int silc_client_bad_keys(unsigned char key)
+{
+ /* these are explained in curses.h */
+ switch(key) {
+ case KEY_SF:
+ case KEY_SR:
+ case KEY_NPAGE:
+ case KEY_PPAGE:
+ case KEY_PRINT:
+ case KEY_A1:
+ case KEY_A3:
+ case KEY_B2:
+ case KEY_C1:
+ case KEY_C3:
+ case KEY_UNDO:
+ case KEY_EXIT:
+ case '\v': /* VT */
+ case '\E': /* we ignore ESC */
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+/* Clears input buffer */
+
+static void silc_client_clear_input(SilcClientInternal app)
+{
+ silc_buffer_clear(app->input_buffer);
+ silc_buffer_pull_tail(app->input_buffer,
+ SILC_BUFFER_END(app->input_buffer));
+ silc_screen_input_reset(app->screen);
+}
+
+/* Processes messages user has typed on the screen. This either sends
+ a packet out to network or if command were written executes it. */
+
+static void silc_client_process_message(SilcClientInternal app)
+{
+ unsigned char *data;
+ unsigned int len;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ data = app->input_buffer->data;
+ len = strlen(data);
+
+ if (data[0] == '/' && data[1] != ' ') {
+ /* Command */
+ unsigned int argc = 0;
+ unsigned char **argv, *tmpcmd;
+ unsigned int *argv_lens, *argv_types;
+ SilcClientCommand *cmd;
+ SilcClientCommandContext ctx;
+
+ /* Get the command */
+ tmpcmd = silc_client_parse_command(data);
+ cmd = silc_client_local_command_find(tmpcmd);
+ if (!cmd && (cmd = silc_client_command_find(tmpcmd)) == NULL) {
+ silc_say(app->client, app->current_win, "Invalid command: %s", tmpcmd);
+ silc_free(tmpcmd);
+ goto out;
+ }
+
+ /* Now parse all arguments */
+ silc_parse_command_line(data + 1, &argv, &argv_lens,
+ &argv_types, &argc, cmd->max_args);
+ silc_free(tmpcmd);
+
+ SILC_LOG_DEBUG(("Executing command: %s", cmd->name));
+
+ /* Allocate command context. This and its internals must be free'd
+ by the command routine receiving it. */
+ ctx = silc_calloc(1, sizeof(*ctx));
+ ctx->client = app->client;
+ ctx->conn = app->conn;
+ ctx->command = cmd;
+ ctx->argc = argc;
+ ctx->argv = argv;
+ ctx->argv_lens = argv_lens;
+ ctx->argv_types = argv_types;
+
+ /* Execute command */
+ (*cmd->cb)(ctx);
+
+ } else {
+ /* Normal message to a channel */
+ if (len && app->conn->current_channel &&
+ app->conn->current_channel->on_channel == TRUE) {
+ silc_print(app->client, "> %s", data);
+ silc_client_packet_send_to_channel(app->client,
+ app->conn->sock,
+ app->conn->current_channel,
+ data, strlen(data), TRUE);
+ }
+ }
+
+ out:
+ /* Clear the input buffer */
+ silc_client_clear_input(app);
+}
+
+/* Returns the command fetched from user typed command line */
+
+static char *silc_client_parse_command(unsigned char *buffer)
+{
+ char *ret;
+ const char *cp = buffer;
+ int len;
+
+ len = strcspn(cp, " ");
+ ret = silc_to_upper((char *)++cp);
+ ret[len - 1] = 0;
+
+ return ret;
+}
+
+/* Updates clock on the screen every minute. */
+
+SILC_TASK_CALLBACK(silc_client_update_clock)
+{
+ SilcClient client = (SilcClient)context;
+ SilcClientInternal app = (SilcClientInternal)client->application;
+
+ /* Update the clock on the screen */
+ silc_screen_print_clock(app->screen);
+
+ /* Re-register this same task */
+ silc_task_register(qptr, 0, silc_client_update_clock, context,
+ silc_client_time_til_next_min(), 0,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_LOW);
+
+ silc_screen_refresh_win(app->screen->input_win);
+}
+
+/* Runs commands user configured in configuration file. This is
+ called when initializing client. */
+
+SILC_TASK_CALLBACK(silc_client_run_commands)
+{
+ SilcClient client = (SilcClient)context;
+ SilcClientInternal app = (SilcClientInternal)client->application;
+ SilcClientConfigSectionCommand *cs;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ cs = app->config->commands;
+ while(cs) {
+ unsigned int argc = 0;
+ unsigned char **argv, *tmpcmd;
+ unsigned int *argv_lens, *argv_types;
+ SilcClientCommand *cmd;
+ SilcClientCommandContext ctx;
+
+ /* Get the command */
+ tmpcmd = silc_client_parse_command(cs->command);
+ cmd = silc_client_local_command_find(tmpcmd);
+ if (!cmd && (cmd = silc_client_command_find(tmpcmd)) == NULL) {
+ silc_say(client, app->conn, "Invalid command: %s", tmpcmd);
+ silc_free(tmpcmd);
+ continue;
+ }
+
+ /* Now parse all arguments */
+ silc_parse_command_line(cs->command + 1, &argv, &argv_lens,
+ &argv_types, &argc, cmd->max_args);
+ silc_free(tmpcmd);
+
+ SILC_LOG_DEBUG(("Executing command: %s", cmd->name));
+
+ /* Allocate command context. This and its internals must be free'd
+ by the command routine receiving it. */
+ ctx = silc_calloc(1, sizeof(*ctx));
+ ctx->client = client;
+ ctx->conn = app->conn;
+ ctx->command = cmd;
+ ctx->argc = argc;
+ ctx->argv = argv;
+ ctx->argv_lens = argv_lens;
+ ctx->argv_types = argv_types;
+
+ /* Execute command */
+ (*cmd->cb)(ctx);
+
+ cs = cs->next;
+ }
+}
projects / silc.git / blobdiff