statd_get_socket(void)
{
struct sockaddr_in sin;
+ struct servent *se;
+ int loopcnt = 100;
if (sockfd >= 0)
return sockfd;
- if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
- note(N_CRIT, "Can't create socket: %m");
- return -1;
- }
-
- FD_SET(sockfd, &SVC_FDSET);
+ while (loopcnt-- > 0) {
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_addr.s_addr = INADDR_ANY;
-
- if (bindresvport(sockfd, &sin) < 0) {
- dprintf(N_WARNING,
- "process_hosts: can't bind to reserved port\n");
- }
- return sockfd;
-}
+ if (sockfd >= 0) close(sockfd);
-/*
- * Try to resolve host name for notify/callback request
- *
- * When compiled with RESTRICTED_STATD defined, we expect all
- * host names to be dotted quads. See monitor.c for details. --okir
- */
-#ifdef RESTRICTED_STATD
-static int
-try_to_resolve(notify_list *lp)
-{
- char *hname;
-
- hname = NL_MY_NAME(lp);
- if (!inet_aton(hname, &(NL_ADDR(lp)))) {
- note(N_ERROR, "%s is not an dotted-quad address", hname);
- NL_TIMES(lp) = 0;
- return 0;
- }
-
- /* XXX: In order to handle multi-homed hosts, we could do
- * a reverse lookup, a forward lookup, and cycle through
- * all the addresses.
- */
- return 1;
-}
-#else
-static int
-try_to_resolve(notify_list *lp)
-{
- struct hostent *hp;
- char *hname;
+ if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+ note(N_CRIT, "Can't create socket: %m");
+ return -1;
+ }
- hname = NL_MY_NAME(lp);
- dprintf(N_DEBUG, "Trying to resolve %s.", hname);
- if (!(hp = gethostbyname(hname))) {
- herror("gethostbyname");
- NL_TIMES(lp) -= 1;
- return 0;
- }
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = INADDR_ANY;
- if (hp->h_addrtype != AF_INET) {
- note(N_ERROR, "%s is not an AF_INET address", hname);
- NL_TIMES(lp) = 0;
- return 0;
+ if (bindresvport(sockfd, &sin) < 0) {
+ dprintf(N_WARNING,
+ "process_hosts: can't bind to reserved port\n");
+ break;
+ }
+ se = getservbyport(sin.sin_port, "udp");
+ if (se == NULL)
+ break;
+ /* rather not use that port, try again */
}
-
- /* FIXME: should try all addresses for multi-homed hosts in
- * alternation because one interface might be down/unreachable. */
- NL_ADDR(lp) = *(struct in_addr *) hp->h_addr;
-
- dprintf(N_DEBUG, "address of %s is %s", hname, inet_ntoa(NL_ADDR(lp)));
- return 1;
+ FD_SET(sockfd, &SVC_FDSET);
+ return sockfd;
}
-#endif
static unsigned long
xmit_call(int sockfd, struct sockaddr_in *sin,
u_int32_t proc, vers, prog;
/* __u32 proc, vers, prog; */
- if (lp->addr.s_addr == INADDR_ANY && !try_to_resolve(lp))
- return NL_TIMES(lp);
if (NL_TIMES(lp) == 0) {
note(N_DEBUG, "Cannot notify %s, giving up.\n",
inet_ntoa(NL_ADDR(lp)));
lp->xid = xmit_call(sockfd, &sin, prog, vers, proc, func, objp);
if (!lp->xid) {
- note(N_WARNING, "notify_host: failed to notify %s\n",
- inet_ntoa(lp->addr));
+ note(N_WARNING, "notify_host: failed to notify port %d\n",
+ ntohs(lp->port));
}
NL_TIMES(lp) -= 1;