1 be8b315d 2004-06-17 devnull #include <u.h>
 2 be8b315d 2004-06-17 devnull #include <libc.h>
 3 be8b315d 2004-06-17 devnull #include <auth.h>
 4 be8b315d 2004-06-17 devnull 
 5 be8b315d 2004-06-17 devnull int
 6 be8b315d 2004-06-17 devnull auth_getkey(char *params)
 7 be8b315d 2004-06-17 devnull {
 8 be8b315d 2004-06-17 devnull 	char *name;
 9 be8b315d 2004-06-17 devnull 	Dir *d;
10 be8b315d 2004-06-17 devnull 	int pid;
11 be8b315d 2004-06-17 devnull 	Waitmsg *w;
12 be8b315d 2004-06-17 devnull 
13 be8b315d 2004-06-17 devnull 	/* start /factotum to query for a key */
14 be8b315d 2004-06-17 devnull 	name = "/factotum";
15 be8b315d 2004-06-17 devnull 	d = dirstat(name);
16 be8b315d 2004-06-17 devnull 	if(d == nil){
17 be8b315d 2004-06-17 devnull 		name = "/boot/factotum";
18 be8b315d 2004-06-17 devnull 		d = dirstat(name);
19 be8b315d 2004-06-17 devnull 	}
20 be8b315d 2004-06-17 devnull 	if(d == nil){
21 be8b315d 2004-06-17 devnull 		werrstr("auth_getkey: no /factotum or /boot/factotum: didn't get key %s", params);
22 be8b315d 2004-06-17 devnull 		return -1;
23 be8b315d 2004-06-17 devnull 	}
24 be8b315d 2004-06-17 devnull if(0)	if(d->type != '/'){
25 be8b315d 2004-06-17 devnull 		werrstr("auth_getkey: /factotum may be bad: didn't get key %s", params);
26 be8b315d 2004-06-17 devnull 		return -1;
27 be8b315d 2004-06-17 devnull 	}
28 be8b315d 2004-06-17 devnull 	switch(pid = fork()){
29 be8b315d 2004-06-17 devnull 	case -1:
30 be8b315d 2004-06-17 devnull 		werrstr("can't fork for %s: %r", name);
31 be8b315d 2004-06-17 devnull 		return -1;
32 be8b315d 2004-06-17 devnull 	case 0:
33 be8b315d 2004-06-17 devnull 		execl(name, "getkey", "-g", params, nil);
34 be8b315d 2004-06-17 devnull 		exits(0);
35 be8b315d 2004-06-17 devnull 	default:
36 be8b315d 2004-06-17 devnull 		for(;;){
37 be8b315d 2004-06-17 devnull 			w = wait();
38 be8b315d 2004-06-17 devnull 			if(w == nil)
39 be8b315d 2004-06-17 devnull 				break;
40 be8b315d 2004-06-17 devnull 			if(w->pid == pid){
41 be8b315d 2004-06-17 devnull 				if(w->msg[0] != '\0'){
42 be8b315d 2004-06-17 devnull 					free(w);
43 be8b315d 2004-06-17 devnull 					return -1;
44 be8b315d 2004-06-17 devnull 				}
45 be8b315d 2004-06-17 devnull 				free(w);
46 be8b315d 2004-06-17 devnull 				return 0;
47 be8b315d 2004-06-17 devnull 			}
48 be8b315d 2004-06-17 devnull 		}
49 be8b315d 2004-06-17 devnull 	}
50 be8b315d 2004-06-17 devnull 	return 0;
51 be8b315d 2004-06-17 devnull }