#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 voidsetraw(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);	}} intopentty(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;} voiddetach(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); voidos_notify(void (*func)(int)){	notefunc = func;	signal(SIGINT, func);} voidcatcher(int sig){	if(sig==SIGINT) {		gotint = 1;		signal(SIGINT, notefunc);	}} voidsetup_os_notify(void){	os_notify(catcher);} intnproc(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;} intremote_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);}