void
panic(char *fmt, ...)
{
int n;
va_list arg;
char buf[PRINTSIZE];
strcpy(buf, "panic: ");
va_start(arg, fmt);
n = vseprint(buf+7, buf+sizeof(buf), fmt, arg) - buf;
va_end(arg);
buf[n] = '\n';
consputs(buf, n+1);
//floppymemwrite();
splhi(); for(;;);
if(etherdetach)
etherdetach();
if(sddetach)
sddetach();
consputs("\nPress almost any key to reset...", 32);
spllo();
while(consiq.getc(&consiq) == -1)
;
warp86(nil, 0);
}
/*
* Print a string on the console. Convert \n to \r\n for serial
* line consoles. Locking of the queues is left up to the screen
* or uart code. Multi-line messages to serial consoles may get
* interspersed with other messages.
*/
static void
putstrn0(char *str, int n, int usewrite)
{
kmesgputs(str, n);
if(consputs != nil)
consputs(str, n);
if(consuartputs != nil)
consuartputs(str, n);
}
int
print(char *fmt, ...)
{
int n;
va_list arg;
char buf[PRINTSIZE];
va_start(arg, fmt);
n = vseprint(buf, buf+sizeof(buf), fmt, arg) - buf;
va_end(arg);
consputs(buf, n);
return n;
}
int
getstr(char *prompt, char *buf, int size, char *def, int timeout)
{
int len, isdefault;
char pbuf[PRINTSIZE];
buf[0] = 0;
isdefault = (def && *def);
if(isdefault == 0){
timeout = 0;
sprint(pbuf, "%s: ", prompt);
}
else if(timeout)
sprint(pbuf, "%s[default==%s (%ds timeout)]: ", prompt, def, timeout);
else
sprint(pbuf, "%s[default==%s]: ", prompt, def);
for (;;) {
print(pbuf);
len = getline(buf, size, timeout);
switch(len){
case 0:
/* RETURN */
if(isdefault)
break;
continue;
case -1:
/* ^U typed */
continue;
case -2:
/* timeout, use default */
consputs("\n", 1);
len = 0;
break;
default:
break;
}
if(len >= size){
print("line too long\n");
continue;
}
break;
}
if(len == 0 && isdefault)
strcpy(buf, def);
return 0;
}
static int
getline(char *buf, int size, int timeout)
{
int c, i=0;
uint32_t start;
char echo;
for (;;) {
start = m->ticks;
do{
/* timeout seconds to first char */
if(timeout && ((m->ticks - start) > timeout*HZ))
return -2;
c = consiq.getc(&consiq);
}while(c == -1);
timeout = 0;
if(c == '\r')
c = '\n'; /* turn carriage return into newline */
if(c == '\177')
c = '\010'; /* turn delete into backspace */
if(c == '\025')
echo = '\n'; /* echo ^U as a newline */
else
echo = c;
consputs(&echo, 1);
if(c == '\010'){
if(i > 0)
i--; /* bs deletes last character */
continue;
}
/* a newline ends a line */
if (c == '\n')
break;
/* ^U wipes out the line */
if (c =='\025')
return -1;
if(i == size)
return size;
buf[i++] = c;
}
buf[i] = 0;
return i;
}
