int main(void)
{
reset_console(0);
return EXIT_SUCCESS;
}
static void mux_io(server_conf_t *conf)
{
/* Multiplexes I/O between all of the objs in the configuration.
* This routine is the heart of ConMan.
*/
ListIterator i;
int n;
obj_t *obj;
int inevent_fd;
assert(conf->tp != NULL);
assert(!list_is_empty(conf->objs));
i = list_iterator_create(conf->objs);
while (!done) {
if (reconfig) {
/*
* FIXME: A reconfig should pro'ly resurrect "downed" serial objs
* and reset reconnect timers of "downed" telnet objs.
*/
log_msg(LOG_NOTICE, "Performing reconfig on signal=%d", reconfig);
reopen_logfiles(conf);
reconfig = 0;
}
/* FIXME: Switch from recomputing the tpoll set on each loop iteration
* to modifying it based on events. This will eliminate the 1sec
* tpoll() sleep timeout and greatly reduce cpu utilization.
* It will also eliminate the maze of twisty conditions below.
*/
DPRINTF((25, "Recomputing tpoll fd set\n"));
(void) tpoll_zero(conf->tp, TPOLL_ZERO_FDS);
tpoll_set(conf->tp, conf->ld, POLLIN);
inevent_fd = inevent_get_fd();
if (inevent_fd >= 0) {
tpoll_set(conf->tp, inevent_get_fd(), POLLIN);
}
list_iterator_reset(i);
while ((obj = list_next(i))) {
if (obj->gotReset) {
reset_console(obj, conf->resetCmd);
}
if (obj->fd < 0) {
continue;
}
if ( (
( is_telnet_obj(obj) &&
obj->aux.telnet.state == CONMAN_TELNET_UP ) ||
( is_process_obj(obj) &&
obj->aux.process.state == CONMAN_PROCESS_UP ) ||
#if WITH_FREEIPMI
( is_ipmi_obj(obj) &&
obj->aux.ipmi.state == CONMAN_IPMI_UP ) ||
#endif /* WITH_FREEIPMI */
( is_unixsock_obj(obj) &&
obj->aux.unixsock.state == CONMAN_UNIXSOCK_UP ) ||
is_serial_obj(obj) ||
is_client_obj(obj)
)
&&
( ! obj->gotEOF ) )
{
tpoll_set(conf->tp, obj->fd, POLLIN);
}
if ( ( (obj->bufInPtr != obj->bufOutPtr) ||
(obj->gotEOF) ) &&
( ! (is_telnet_obj(obj) &&
obj->aux.telnet.state != CONMAN_TELNET_UP) ) &&
( ! (is_process_obj(obj) &&
obj->aux.process.state != CONMAN_PROCESS_UP) ) &&
#if WITH_FREEIPMI
( ! (is_ipmi_obj(obj) &&
obj->aux.ipmi.state != CONMAN_IPMI_UP) ) &&
#endif /* WITH_FREEIPMI */
( ! (is_unixsock_obj(obj) &&
obj->aux.unixsock.state != CONMAN_UNIXSOCK_UP) ) &&
( ! (is_client_obj(obj) &&
obj->aux.client.gotSuspend) ) )
{
tpoll_set(conf->tp, obj->fd, POLLOUT);
}
if (is_telnet_obj(obj) &&
obj->aux.telnet.state == CONMAN_TELNET_PENDING)
{
tpoll_set(conf->tp, obj->fd, POLLIN | POLLOUT);
}
}
DPRINTF((25, "Calling tpoll\n"));
while ((n = tpoll(conf->tp, 1000)) < 0) {
if (errno != EINTR) {
log_err(errno, "Unable to multiplex I/O");
}
else if (done || reconfig) {
break;
}
}
if (n <= 0) {
continue;
}
if (tpoll_is_set(conf->tp, conf->ld, POLLIN)) {
accept_client(conf);
}
if ((inevent_fd >= 0) && tpoll_is_set(conf->tp, inevent_fd, POLLIN)) {
inevent_process();
}
/* If read_from_obj() or write_to_obj() returns -1,
* the obj's buffer has been flushed. If it is a telnet obj,
* retain it and attempt to re-establish the connection;
* o/w, give up and remove it from the master objs list.
*/
list_iterator_reset(i);
while ((obj = list_next(i))) {
if (obj->fd < 0) {
continue;
}
if (is_telnet_obj(obj)
&& tpoll_is_set(conf->tp, obj->fd, POLLIN | POLLOUT)
&& (obj->aux.telnet.state == CONMAN_TELNET_PENDING)) {
open_telnet_obj(obj);
continue;
}
if (tpoll_is_set(conf->tp, obj->fd, POLLIN | POLLHUP | POLLERR)) {
if (read_from_obj(obj, conf->tp) < 0) {
list_delete(i);
continue;
}
if (obj->fd < 0) {
continue;
}
}
if (tpoll_is_set(conf->tp, obj->fd, POLLOUT)) {
if (write_to_obj(obj) < 0) {
list_delete(i);
continue;
}
if (obj->fd < 0) {
continue;
}
}
}
}
log_msg(LOG_NOTICE, "Exiting on signal=%d", done);
list_iterator_destroy(i);
return;
}
static bool
process_vt100_command(const char c, bool seenBracket, int32 *args,
int32 argCount)
{
bool ret = true;
// kprintf("process_vt100_command: c '%c', argCount %ld, arg[0] %ld, arg[1] %ld, seenBracket %d\n",
// c, argCount, args[0], args[1], seenBracket);
if (seenBracket) {
switch (c) {
case 'H': // set cursor position
case 'f':
{
int32 row = argCount > 0 ? args[0] : 1;
int32 col = argCount > 1 ? args[1] : 1;
if (row > 0)
row--;
if (col > 0)
col--;
move_cursor(col, row);
break;
}
case 'A': // move up
{
int32 deltaY = argCount > 0 ? -args[0] : -1;
if (deltaY == 0)
deltaY = -1;
move_cursor(sScreen.x, sScreen.y + deltaY);
break;
}
case 'e':
case 'B': // move down
{
int32 deltaY = argCount > 0 ? args[0] : 1;
if (deltaY == 0)
deltaY = 1;
move_cursor(sScreen.x, sScreen.y + deltaY);
break;
}
case 'D': // move left
{
int32 deltaX = argCount > 0 ? -args[0] : -1;
if (deltaX == 0)
deltaX = -1;
move_cursor(sScreen.x + deltaX, sScreen.y);
break;
}
case 'a':
case 'C': // move right
{
int32 deltaX = argCount > 0 ? args[0] : 1;
if (deltaX == 0)
deltaX = 1;
move_cursor(sScreen.x + deltaX, sScreen.y);
break;
}
case '`':
case 'G': // set X position
{
int32 newX = argCount > 0 ? args[0] : 1;
if (newX > 0)
newX--;
move_cursor(newX, sScreen.y);
break;
}
case 'd': // set y position
{
int32 newY = argCount > 0 ? args[0] : 1;
if (newY > 0)
newY--;
move_cursor(sScreen.x, newY);
break;
}
#if 0
case 's': // save current cursor
save_cur(console, false);
break;
case 'u': // restore cursor
restore_cur(console, false);
break;
case 'r': // set scroll region
{
int32 low = argCount > 0 ? args[0] : 1;
int32 high = argCount > 1 ? args[1] : sScreen.lines;
if (low <= high)
set_scroll_region(console, low - 1, high - 1);
break;
}
case 'L': // scroll virtual down at cursor
{
int32 lines = argCount > 0 ? args[0] : 1;
while (lines > 0) {
scrdown(console);
lines--;
}
break;
}
case 'M': // scroll virtual up at cursor
{
int32 lines = argCount > 0 ? args[0] : 1;
while (lines > 0) {
scrup(console);
lines--;
}
break;
}
#endif
case 'K':
if (argCount == 0 || args[0] == 0) {
// erase to end of line
erase_line(LINE_ERASE_RIGHT);
} else if (argCount > 0) {
if (args[0] == 1)
erase_line(LINE_ERASE_LEFT);
else if (args[0] == 2)
erase_line(LINE_ERASE_WHOLE);
}
break;
#if 0
case 'J':
if (argCount == 0 || args[0] == 0) {
// erase to end of screen
erase_screen(console, SCREEN_ERASE_DOWN);
} else {
if (args[0] == 1)
erase_screen(console, SCREEN_ERASE_UP);
else if (args[0] == 2)
erase_screen(console, SCREEN_ERASE_WHOLE);
}
break;
#endif
case 'm':
if (argCount >= 0)
set_vt100_attributes(args, argCount);
break;
default:
ret = false;
}
} else {
switch (c) {
#if 0
case 'c':
reset_console(console);
break;
case 'D':
rlf(console);
break;
case 'M':
lf(console);
break;
case '7':
save_cur(console, true);
break;
case '8':
restore_cur(console, true);
break;
#endif
default:
ret = false;
}
}
return ret;
}
