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#include <u.h>
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#include <libc.h>
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#include <auth.h>
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int
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auth_getkey(char *params)
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{
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	char *name;
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	Dir *d;
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	int pid;
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	Waitmsg *w;
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	/* start /factotum to query for a key */
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	name = "/factotum";
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	d = dirstat(name);
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	if(d == nil){
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		name = "/boot/factotum";
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		d = dirstat(name);
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	}
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	if(d == nil){
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		werrstr("auth_getkey: no /factotum or /boot/factotum: didn't get key %s", params);
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		return -1;
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	}
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if(0)	if(d->type != '/'){
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		werrstr("auth_getkey: /factotum may be bad: didn't get key %s", params);
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		return -1;
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	}
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	switch(pid = fork()){
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	case -1:
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		werrstr("can't fork for %s: %r", name);
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		return -1;
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	case 0:
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		execl(name, "getkey", "-g", params, nil);
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		exits(0);
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	default:
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		for(;;){
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			w = wait();
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			if(w == nil)
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				break;
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			if(w->pid == pid){
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				if(w->msg[0] != '\0'){
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					free(w);
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					return -1;
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				}
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				free(w);
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				return 0;
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			}
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		}
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	}
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	return 0;
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}