#include <u.h>
#include <libc.h>
#include <libsec.h>
#include <auth.h>
#include <thread.h>

void
usage(void)
{
	fprint(2, "usage: dyndns [-k keyspec] [-s server] host [ip]\n");
	threadexitsall("usage");
}

void
threadmain(int argc, char **argv)
{
	char buf[100], *auth, *keyspec, *server;
	int n, fd;
	UserPasswd *up;
	
	fmtinstall('[', encodefmt);
	keyspec = "";
	server = "members.dyndns.org";
	ARGBEGIN{
	case 's':
		server = EARGF(usage());
		break;
	case 'k':
		keyspec = EARGF(usage());
		break;
	default:
		usage();
	}ARGEND

	if(argc < 1 || argc > 2)
		usage();

	if((up = auth_getuserpasswd(auth_getkey, "proto=pass role=client service=dyndns server=%s %s", server, keyspec)) == nil)
		sysfatal("cannot get password: %r");
	auth = smprint("%s:%s", up->user, up->passwd);

	server = netmkaddr(server, "net", "http");
	if((fd = dial(server, nil, nil, nil)) < 0)
		sysfatal("dial %s: %r", server);
	
	fprint(fd, "GET /nic/update?hostname=%s&myip=%s HTTP/1.0\r\n"
		"Host: %s\r\n"
		"Authorization: Basic %.*[\r\n"
		"User-Agent: stupid\r\n"
		"\r\n", argv[0], argc==2 ? argv[1] : "", server, strlen(auth), auth);

	while((n = read(fd, buf, sizeof buf)) > 0)
		write(1, buf, n);
	threadexitsall(0);
}