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 	int pid;
10 be8b315d 2004-06-17 devnull 	Waitmsg *w;
11 be8b315d 2004-06-17 devnull 
12 be8b315d 2004-06-17 devnull 	/* start /factotum to query for a key */
13 648bb6f7 2005-02-08 devnull 	name = unsharp("#9/bin/factotum");
14 648bb6f7 2005-02-08 devnull 	if(name == nil || access(name, AEXEC) < 0){
15 648bb6f7 2005-02-08 devnull 		werrstr("auth_getkey: no $PLAN9/bin/factotum: didn't get key %s", params);
16 be8b315d 2004-06-17 devnull 		return -1;
17 be8b315d 2004-06-17 devnull 	}
18 be8b315d 2004-06-17 devnull 	switch(pid = fork()){
19 be8b315d 2004-06-17 devnull 	case -1:
20 be8b315d 2004-06-17 devnull 		werrstr("can't fork for %s: %r", name);
21 be8b315d 2004-06-17 devnull 		return -1;
22 be8b315d 2004-06-17 devnull 	case 0:
23 be8b315d 2004-06-17 devnull 		execl(name, "getkey", "-g", params, nil);
24 be8b315d 2004-06-17 devnull 		exits(0);
25 be8b315d 2004-06-17 devnull 	default:
26 648bb6f7 2005-02-08 devnull 		free(name);
27 be8b315d 2004-06-17 devnull 		for(;;){
28 be8b315d 2004-06-17 devnull 			w = wait();
29 be8b315d 2004-06-17 devnull 			if(w == nil)
30 be8b315d 2004-06-17 devnull 				break;
31 be8b315d 2004-06-17 devnull 			if(w->pid == pid){
32 be8b315d 2004-06-17 devnull 				if(w->msg[0] != '\0'){
33 be8b315d 2004-06-17 devnull 					free(w);
34 be8b315d 2004-06-17 devnull 					return -1;
35 be8b315d 2004-06-17 devnull 				}
36 be8b315d 2004-06-17 devnull 				free(w);
37 be8b315d 2004-06-17 devnull 				return 0;
38 be8b315d 2004-06-17 devnull 			}
39 be8b315d 2004-06-17 devnull 		}
40 be8b315d 2004-06-17 devnull 	}
41 be8b315d 2004-06-17 devnull 	return 0;
42 be8b315d 2004-06-17 devnull }