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