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 c6687d45 2004-09-21 devnull static void
 7 c6687d45 2004-09-21 devnull sys(char *buf)
 8 c6687d45 2004-09-21 devnull {
 9 c6687d45 2004-09-21 devnull 	char buf2[100];
10 c6687d45 2004-09-21 devnull 	char *f[20];
11 c6687d45 2004-09-21 devnull 	int nf, pid;
12 c6687d45 2004-09-21 devnull 
13 c6687d45 2004-09-21 devnull 	strcpy(buf2, buf);
14 c6687d45 2004-09-21 devnull 	nf = tokenize(buf2, f, nelem(f));
15 c6687d45 2004-09-21 devnull 	f[nf] = nil;
16 c6687d45 2004-09-21 devnull 	switch(pid = fork()){
17 c6687d45 2004-09-21 devnull 	case 0:
18 c6687d45 2004-09-21 devnull 		execvp(f[0], f);
19 c6687d45 2004-09-21 devnull 		_exits("oops");
20 c6687d45 2004-09-21 devnull 	default:
21 c6687d45 2004-09-21 devnull 		waitpid();
22 c6687d45 2004-09-21 devnull 	}
23 c6687d45 2004-09-21 devnull }
24 c6687d45 2004-09-21 devnull 
25 8ad51794 2004-03-25 devnull int
26 4dcd9af2 2004-04-15 devnull rcstart(int argc, char **argv, int *pfd, int *tfd)
27 8ad51794 2004-03-25 devnull {
28 a2705f20 2004-04-16 devnull 	int fd[2], i, pid;
29 8ad51794 2004-03-25 devnull 	char *xargv[3];
30 8ad51794 2004-03-25 devnull 	char slave[256];
31 8ad51794 2004-03-25 devnull 	int sfd;
32 8ad51794 2004-03-25 devnull 
33 8ad51794 2004-03-25 devnull 	if(argc == 0){
34 8ad51794 2004-03-25 devnull 		argc = 2;
35 8ad51794 2004-03-25 devnull 		argv = xargv;
36 8ad51794 2004-03-25 devnull 		argv[0] = getenv("SHELL");
37 8ad51794 2004-03-25 devnull 		if(argv[0] == 0)
38 8ad51794 2004-03-25 devnull 			argv[0] = "rc";
39 8ad51794 2004-03-25 devnull 		argv[1] = "-i";
40 8ad51794 2004-03-25 devnull 		argv[2] = 0;
41 8ad51794 2004-03-25 devnull 	}
42 8ad51794 2004-03-25 devnull 	/*
43 8ad51794 2004-03-25 devnull 	 * fd0 is slave (tty), fd1 is master (pty)
44 8ad51794 2004-03-25 devnull 	 */
45 8ad51794 2004-03-25 devnull 	fd[0] = fd[1] = -1;
46 8ad51794 2004-03-25 devnull 	if(getpts(fd, slave) < 0)
47 75024f0f 2004-03-26 devnull 		sysfatal("getpts: %r\n");
48 8ad51794 2004-03-25 devnull 	switch(pid = fork()) {
49 8ad51794 2004-03-25 devnull 	case 0:
50 8ad51794 2004-03-25 devnull 		putenv("TERM", "9term");
51 8ad51794 2004-03-25 devnull 		sfd = childpty(fd, slave);
52 8ad51794 2004-03-25 devnull 		dup(sfd, 0);
53 8ad51794 2004-03-25 devnull 		dup(sfd, 1);
54 8ad51794 2004-03-25 devnull 		dup(sfd, 2);
55 c6687d45 2004-09-21 devnull 		sys("stty tabs -onlcr onocr icanon echo erase '^h' intr '^?'");
56 b4a659b6 2004-04-19 devnull 		if(noecho)
57 c6687d45 2004-09-21 devnull 			sys("stty -echo");
58 a2705f20 2004-04-16 devnull 		for(i=3; i<100; i++)
59 a2705f20 2004-04-16 devnull 			close(i);
60 c6687d45 2004-09-21 devnull 		signal(SIGINT, SIG_DFL);
61 c6687d45 2004-09-21 devnull 		signal(SIGHUP, SIG_DFL);
62 c6687d45 2004-09-21 devnull 		signal(SIGTERM, SIG_DFL);
63 8ad51794 2004-03-25 devnull 		execvp(argv[0], argv);
64 8ad51794 2004-03-25 devnull 		fprint(2, "exec %s failed: %r\n", argv[0]);
65 8ad51794 2004-03-25 devnull 		_exits("oops");
66 8ad51794 2004-03-25 devnull 		break;
67 8ad51794 2004-03-25 devnull 	case -1:
68 8ad51794 2004-03-25 devnull 		sysfatal("proc failed: %r");
69 8ad51794 2004-03-25 devnull 		break;
70 8ad51794 2004-03-25 devnull 	}
71 8ad51794 2004-03-25 devnull 	*pfd = fd[1];
72 a2705f20 2004-04-16 devnull 	close(fd[0]);
73 a2705f20 2004-04-16 devnull 	if(tfd){
74 a2705f20 2004-04-16 devnull 		if((*tfd = open(slave, OREAD)) < 0)
75 a2705f20 2004-04-16 devnull 			sysfatal("parent open %s: %r", slave);
76 a2705f20 2004-04-16 devnull 	}
77 8ad51794 2004-03-25 devnull 	return pid;
78 8ad51794 2004-03-25 devnull }
79 8ad51794 2004-03-25 devnull