/*
* Activate all of the consoles listed in *string and disable all the others.
*/
static void
cons_change(const char *string)
{
int cons;
char *curpos, *dup, *next;
/* Disable all consoles */
for (cons = 0; consoles[cons] != NULL; cons++) {
consoles[cons]->c_flags &= ~(C_ACTIVEIN | C_ACTIVEOUT);
}
/* Enable selected consoles */
dup = next = strdup(string);
while (next != NULL) {
curpos = strsep(&next, " ,");
if (*curpos == '\0')
continue;
cons = cons_find(curpos);
if (cons >= 0) {
consoles[cons]->c_flags |= C_ACTIVEIN | C_ACTIVEOUT;
consoles[cons]->c_init(0);
if ((consoles[cons]->c_flags & (C_PRESENTIN | C_PRESENTOUT)) !=
(C_PRESENTIN | C_PRESENTOUT))
printf("console %s failed to initialize\n",
consoles[cons]->c_name);
}
}
free(dup);
}
/*
* Select a console.
*
* XXX Note that the console system design allows for some extension
* here (eg. multiple consoles, input/output only, etc.)
*/
static int
cons_set(struct env_var *ev, int flags, void *value)
{
int cons, active;
if ((value == NULL) || ((active = cons_find(value)) == -1)) {
if (value != NULL)
printf("no such console '%s'\n", (char *)value);
printf("Available consoles:\n");
for (cons = 0; consoles[cons] != NULL; cons++)
printf(" %s\n", consoles[cons]->c_name);
return(CMD_ERROR);
}
/* disable all current consoles */
for (cons = 0; consoles[cons] != NULL; cons++)
consoles[cons]->c_flags &= ~(C_ACTIVEIN | C_ACTIVEOUT);
/* enable selected console */
consoles[active]->c_flags |= C_ACTIVEIN | C_ACTIVEOUT;
consoles[active]->c_init(0);
env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
return(CMD_OK);
}
/*
* Check that all of the consoles listed in *string are valid consoles
*/
static int
cons_check(const char *string)
{
int cons;
char *curpos, *dup, *next;
dup = next = strdup(string);
cons = -1;
while (next != NULL) {
curpos = strsep(&next, " ,");
if (*curpos != '\0') {
cons = cons_find(curpos);
if (cons == -1)
break;
}
}
free(dup);
return (cons);
}