static void echoserialoq(char *buf, int n)
{
char *e, *p;
char ebuf[128];
int x;
p = ebuf;
e = ebuf + sizeof(ebuf) - 4;
while (n-- > 0) {
if (p >= e) {
qiwrite(serialoq, ebuf, p - ebuf);
p = ebuf;
}
x = *buf++;
if (x == '\n') {
*p++ = '\r';
*p++ = '\n';
} else if (x == 0x15) {
*p++ = '^';
*p++ = 'U';
*p++ = '\n';
} else
*p++ = x;
}
if (p != ebuf)
qiwrite(serialoq, ebuf, p - ebuf);
}
/*
* 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)
{
if(!islo())
usewrite = 0;
/*
* how many different output devices do we need?
*/
kmesgputs(str, n);
/*
* if someone is reading /dev/kprint,
* put the message there.
* if not and there's an attached bit mapped display,
* put the message there.
*
* if there's a serial line being used as a console,
* put the message there.
*/
if(kprintoq != nil && !qisclosed(kprintoq)){
if(usewrite)
qwrite(kprintoq, str, n);
else
qiwrite(kprintoq, str, n);
}else if(screenputs != nil)
screenputs(str, n);
uartputs(str, n);
#if 0 // Plan 9 VX
if(serialoq == nil){
uartputs(str, n);
return;
}
while(n > 0) {
t = memchr(str, '\n', n);
if(t && !kbd.raw) {
m = t-str;
if(usewrite){
qwrite(serialoq, str, m);
qwrite(serialoq, "\r\n", 2);
} else {
qiwrite(serialoq, str, m);
qiwrite(serialoq, "\r\n", 2);
}
n -= m+1;
str = t+1;
} else {
if(usewrite)
qwrite(serialoq, str, n);
else
qiwrite(serialoq, str, n);
break;
}
}
#endif
}
int
iprint(char *fmt, ...)
{
Mpl pl;
int i, n, locked;
va_list arg;
char buf[PRINTSIZE];
pl = splhi();
va_start(arg, fmt);
n = vseprint(buf, buf+sizeof(buf), fmt, arg) - buf;
va_end(arg);
locked = iprintcanlock(&iprintlock);
for(i = 0; i < nconsdevs; i++)
if((consdevs[i].flags&Ciprint) != 0){
if(consdevs[i].q != nil)
qiwrite(consdevs[i].q, buf, n);
else
consdevs[i].fn(buf, n);
}
if(locked)
unlock(&iprintlock);
splx(pl);
return n;
}
void echo(Rune r, char *buf, int n)
{
if (kbd.raw)
return;
if (r == '\n') {
if (printq)
qiwrite(printq, "\r", 1);
} else if (r == 0x15) {
buf = "^U\n";
n = 3;
}
if (consoleprint && screenputs != NULL)
screenputs(buf, n);
if (printq)
qiwrite(printq, buf, n);
}
/* total hack. */
void
kbdputsc(int data, int _)
{
static char line[512];
static int len;
putchar(data);
line[len++] = data;
if (keybq && (data == '\n')) {
qiwrite(keybq, line, len);
len = 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)
{
int m;
char *t;
char buf[PRINTSIZE + 2];
ERRSTACK(1);
/*
* if kprint is open, put the message there, otherwise
* if there's an attached bit mapped display,
* put the message there.
*/
m = consoleprint;
if (canrlock(&(&kprintq)->rwlock)) {
if (kprintq.q != NULL) {
if (waserror()) {
runlock(&(&kprintq)->rwlock);
nexterror();
}
if (usewrite)
qwrite(kprintq.q, str, n);
else
qiwrite(kprintq.q, str, n);
poperror();
m = 0;
}
runlock(&(&kprintq)->rwlock);
}
if (m && screenputs != NULL)
screenputs(str, n);
/*
* if there's a serial line being used as a console,
* put the message there.
*/
if (serwrite != NULL) {
serwrite(str, n);
return;
}
if (printq == 0)
return;
while (n > 0) {
t = memchr(str, '\n', n);
if (t && !kbd.raw) {
m = t - str;
if (m > sizeof(buf) - 2)
m = sizeof(buf) - 2;
memmove(buf, str, m);
buf[m] = '\r';
buf[m + 1] = '\n';
if (usewrite)
qwrite(printq, buf, m + 2);
else
qiwrite(printq, buf, m + 2);
str = t + 1;
n -= m + 1;
} else {
if (usewrite)
qwrite(printq, str, n);
else
qiwrite(printq, str, n);
break;
}
}
}
long
consread(Chan *c, void *va, long count, vlong offset)
{
int i, n, ch, eol;
Pointer m;
char *p, buf[64];
if(c->qid.type & QTDIR)
return devdirread(c, va, count, contab, nelem(contab), devgen);
switch((ulong)c->qid.path) {
default:
error(Egreg);
case Qsysctl:
return readstr(offset, va, count, VERSION);
case Qsysname:
if(ossysname == nil)
return 0;
return readstr(offset, va, count, ossysname);
case Qrandom:
return randomread(va, count);
case Qnotquiterandom:
pseudoRandomBytes(va, count);
return count;
case Qpin:
p = "pin set";
if(up->env->pgrp->pin == Nopin)
p = "no pin";
return readstr(offset, va, count, p);
case Qhostowner:
return readstr(offset, va, count, eve);
case Qhoststdin:
return read(0, va, count); /* should be pread */
case Quser:
return readstr(offset, va, count, up->env->user);
case Qjit:
snprint(buf, sizeof(buf), "%d", cflag);
return readstr(offset, va, count, buf);
case Qtime:
snprint(buf, sizeof(buf), "%.lld", timeoffset + osusectime());
return readstr(offset, va, count, buf);
case Qdrivers:
p = malloc(READSTR);
if(p == nil)
error(Enomem);
n = 0;
for(i = 0; devtab[i] != nil; i++)
n += snprint(p+n, READSTR-n, "#%C %s\n", devtab[i]->dc, devtab[i]->name);
n = readstr(offset, va, count, p);
free(p);
return n;
case Qmemory:
return poolread(va, count, offset);
case Qnull:
return 0;
case Qmsec:
return readnum(offset, va, count, osmillisec(), NUMSIZE);
case Qcons:
qlock(&kbd.q);
if(waserror()){
qunlock(&kbd.q);
nexterror();
}
if(dflag)
error(Enonexist);
while(!qcanread(lineq)) {
qread(kbdq, &kbd.line[kbd.x], 1);
ch = kbd.line[kbd.x];
if(kbd.raw){
qiwrite(lineq, &kbd.line[kbd.x], 1);
continue;
}
eol = 0;
switch(ch) {
case '\b':
if(kbd.x)
kbd.x--;
break;
case 0x15:
kbd.x = 0;
break;
case '\n':
case 0x04:
eol = 1;
default:
kbd.line[kbd.x++] = ch;
break;
}
if(kbd.x == sizeof(kbd.line) || eol){
if(ch == 0x04)
kbd.x--;
qwrite(lineq, kbd.line, kbd.x);
kbd.x = 0;
}
}
n = qread(lineq, va, count);
qunlock(&kbd.q);
poperror();
return n;
case Qscancode:
if(offset == 0)
return readstr(0, va, count, gkscanid);
else
return qread(gkscanq, va, count);
case Qkeyboard:
return qread(gkbdq, va, count);
case Qpointer:
m = mouseconsume();
n = sprint(buf, "m%11d %11d %11d %11lud ", m.x, m.y, m.b, m.msec);
if (count < n)
n = count;
memmove(va, buf, n);
return n;
case Qkprint:
rlock(&kprintq.l);
if(waserror()){
runlock(&kprintq.l);
nexterror();
}
n = qread(kprintq.q, va, count);
poperror();
runlock(&kprintq.l);
return n;
case Qsnarf:
if(offset == 0) {
free(c->aux);
c->aux = clipread();
}
if(c->aux == nil)
return 0;
return readstr(offset, va, count, c->aux);
}
}