1 8ad51794 2004-03-25 devnull #include <u.h>
 2 4dcd9af2 2004-04-15 devnull #include <signal.h>
 3 b4a659b6 2004-04-19 devnull #include <libc.h>
 4 8ad51794 2004-03-25 devnull #include "term.h"
 5 8ad51794 2004-03-25 devnull 
 6 8ad51794 2004-03-25 devnull int
 7 4dcd9af2 2004-04-15 devnull rcstart(int argc, char **argv, int *pfd, int *tfd)
 8 8ad51794 2004-03-25 devnull {
 9 a2705f20 2004-04-16 devnull 	int fd[2], i, pid;
10 8ad51794 2004-03-25 devnull 	char *xargv[3];
11 8ad51794 2004-03-25 devnull 	char slave[256];
12 8ad51794 2004-03-25 devnull 	int sfd;
13 8ad51794 2004-03-25 devnull 
14 8ad51794 2004-03-25 devnull 	if(argc == 0){
15 8ad51794 2004-03-25 devnull 		argc = 2;
16 8ad51794 2004-03-25 devnull 		argv = xargv;
17 8ad51794 2004-03-25 devnull 		argv[0] = getenv("SHELL");
18 8ad51794 2004-03-25 devnull 		if(argv[0] == 0)
19 8ad51794 2004-03-25 devnull 			argv[0] = "rc";
20 8ad51794 2004-03-25 devnull 		argv[1] = "-i";
21 8ad51794 2004-03-25 devnull 		argv[2] = 0;
22 8ad51794 2004-03-25 devnull 	}
23 8ad51794 2004-03-25 devnull 	/*
24 8ad51794 2004-03-25 devnull 	 * fd0 is slave (tty), fd1 is master (pty)
25 8ad51794 2004-03-25 devnull 	 */
26 8ad51794 2004-03-25 devnull 	fd[0] = fd[1] = -1;
27 8ad51794 2004-03-25 devnull 	if(getpts(fd, slave) < 0)
28 75024f0f 2004-03-26 devnull 		sysfatal("getpts: %r\n");
29 8ad51794 2004-03-25 devnull 	switch(pid = fork()) {
30 8ad51794 2004-03-25 devnull 	case 0:
31 8ad51794 2004-03-25 devnull 		putenv("TERM", "9term");
32 8ad51794 2004-03-25 devnull 		sfd = childpty(fd, slave);
33 8ad51794 2004-03-25 devnull 		dup(sfd, 0);
34 8ad51794 2004-03-25 devnull 		dup(sfd, 1);
35 8ad51794 2004-03-25 devnull 		dup(sfd, 2);
36 a2705f20 2004-04-16 devnull 		system("stty tabs -onlcr onocr icanon echo erase '^h' intr '^?'");
37 b4a659b6 2004-04-19 devnull 		if(noecho)
38 b4a659b6 2004-04-19 devnull 			system("stty -echo");
39 a2705f20 2004-04-16 devnull 		for(i=3; i<100; i++)
40 a2705f20 2004-04-16 devnull 			close(i);
41 8ad51794 2004-03-25 devnull 		execvp(argv[0], argv);
42 8ad51794 2004-03-25 devnull 		fprint(2, "exec %s failed: %r\n", argv[0]);
43 8ad51794 2004-03-25 devnull 		_exits("oops");
44 8ad51794 2004-03-25 devnull 		break;
45 8ad51794 2004-03-25 devnull 	case -1:
46 8ad51794 2004-03-25 devnull 		sysfatal("proc failed: %r");
47 8ad51794 2004-03-25 devnull 		break;
48 8ad51794 2004-03-25 devnull 	}
49 8ad51794 2004-03-25 devnull 	*pfd = fd[1];
50 a2705f20 2004-04-16 devnull 	close(fd[0]);
51 a2705f20 2004-04-16 devnull 	if(tfd){
52 a2705f20 2004-04-16 devnull 		if((*tfd = open(slave, OREAD)) < 0)
53 a2705f20 2004-04-16 devnull 			sysfatal("parent open %s: %r", slave);
54 a2705f20 2004-04-16 devnull 	}
55 8ad51794 2004-03-25 devnull 	return pid;
56 8ad51794 2004-03-25 devnull }
57 8ad51794 2004-03-25 devnull