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#include <lib9.h>
#include <bio.h>
#include <sys/types.h>
#include <termios.h>
#undef getwd
#undef getwd
#include <unistd.h>
#include "mach.h"
#define Extern extern
#include "acid.h"
#include <signal.h>
static void
setraw(int fd, int baud)
{
struct termios sg;
switch(baud){
case 1200: baud = B1200; break;
case 2400: baud = B2400; break;
case 4800: baud = B4800; break;
case 9600: baud = B9600; break;
case 19200: baud = B19200; break;
case 38400: baud = B38400; break;
default:
werrstr("unknown speed %d", baud);
return;
}
if(tcgetattr(fd, &sg) >= 0) {
sg.c_iflag = sg.c_oflag = sg.c_lflag = 0;
sg.c_cflag &= ~CSIZE;
sg.c_cflag |= CS8 | CREAD;
sg.c_cflag &= ~(PARENB|PARODD);
sg.c_cc[VMIN] = 1;
sg.c_cc[VTIME] = 0;
if(baud) {
cfsetispeed(&sg, baud);
cfsetospeed(&sg, baud);
}
tcsetattr(fd, TCSANOW, &sg);
}
}
int
opentty(char *tty, int baud)
{
int fd;
if(baud == 0)
baud = 19200;
fd = open(tty, 2);
if(fd < 0)
return -1;
setraw(fd, baud);
return fd;
}
void
detach(void)
{
setpgid(0, 0);
}
char *
waitfor(int pid)
{
int n, status;
static char buf[32];
for(;;) {
n = wait(&status);
if(n < 0)
error("wait %r");
if(n == pid) {
sprint(buf, "%d", status);
return buf;
}
}
}
char *
runcmd(char *cmd)
{
char *argv[4];
int pid;
argv[0] = "/bin/sh";
argv[1] = "-c";
argv[2] = cmd;
argv[3] = 0;
pid = fork();
switch(pid) {
case -1:
error("fork %r");
case 0:
execv("/bin/sh", argv);
exits(0);
default:
return waitfor(pid);
}
return 0;
}
void (*notefunc)(int);
void
os_notify(void (*func)(int))
{
notefunc = func;
signal(SIGINT, func);
}
void
catcher(int sig)
{
if(sig==SIGINT) {
gotint = 1;
signal(SIGINT, notefunc);
}
}
void
setup_os_notify(void)
{
os_notify(catcher);
}
int
nproc(char **argv)
{
char buf[128];
int pid, i, fd;
if(rdebug)
error("can't newproc in remote mode");
pid = fork();
switch(pid) {
case -1:
error("new: fork %r");
case 0:
detach();
sprint(buf, "/proc/%d/ctl", getpid());
fd = open(buf, ORDWR);
if(fd < 0)
fatal("new: open %s: %r", buf);
write(fd, "hang", 4);
close(fd);
close(0);
close(1);
close(2);
for(i = 3; i < NFD; i++)
close(i);
open("/dev/cons", OREAD);
open("/dev/cons", OWRITE);
open("/dev/cons", OWRITE);
execvp(argv[0], argv);
fatal("new: execvp %s: %r");
default:
install(pid);
msg(pid, "waitstop");
notes(pid);
sproc(pid);
dostop(pid);
break;
}
return pid;
}
int
remote_read(int fd, char *buf, int bytes)
{
return read(fd, buf, bytes);
}
int remote_write(int fd, char *buf, int bytes)
{
return write(fd, buf, bytes);
}
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