1 #include <u.h>
2 #include <libc.h>
3 
4 void
5 usage(void)
6 {
7 	fprint(2, "usage: dial [-e] addr\n");
8 	exits("usage");
9 }
10 
11 void
12 killer(void *x, char *msg)
13 {
14 	USED(x);
15 	if(strcmp(msg, "kill") == 0)
16 		exits(0);
17 	noted(NDFLT);
18 }
19 
20 void
21 main(int argc, char **argv)
22 {
23 	int fd, pid;
24 	char buf[8192];
25 	int n, waitforeof;
26 
27 	notify(killer);
28 	waitforeof = 0;
29 	ARGBEGIN{
30 	case 'e':
31 		waitforeof = 1;
32 		break;
33 	default:
34 		usage();
35 	}ARGEND
36 
37 	if(argc != 1)
38 		usage();
39 
40 	if((fd = dial(argv[0], nil, nil, nil)) < 0)
41 		sysfatal("dial: %r");
42 
43 	switch(pid = fork()){
44 	case -1:
45 		sysfatal("fork: %r");
46 	case 0:
47 		while((n = read(0, buf, sizeof buf)) > 0)
48 			if(write(fd, buf, n) < 0)
49 				break;
50 		if(!waitforeof)
51 			postnote(PNPROC, getppid(), "kill");
52 		exits(nil);
53 	}
54 
55 	while((n = read(fd, buf, sizeof buf)) > 0)
56 		if(write(1, buf, n) < 0)
57 			break;
58 
59 	postnote(PNPROC, pid, "kill");
60 	waitpid();
61 	exits(0);
62 }