return max_fds;
}
-/* Translates 'host_name', which may be a DNS name or an IP address, into a
- * numeric IP address in '*addr'. Returns 0 if successful, otherwise a
- * positive errno value. */
+/* Translates 'host_name', which must be a string representation of an IP
+ * address, into a numeric IP address in '*addr'. Returns 0 if successful,
+ * otherwise a positive errno value. */
int
lookup_ip(const char *host_name, struct in_addr *addr)
{
if (!inet_aton(host_name, addr)) {
- struct hostent *he = gethostbyname(host_name);
- if (he == NULL) {
- struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_ERR_RL(&rl, "gethostbyname(%s): %s", host_name,
- (h_errno == HOST_NOT_FOUND ? "host not found"
- : h_errno == TRY_AGAIN ? "try again"
- : h_errno == NO_RECOVERY ? "non-recoverable error"
- : h_errno == NO_ADDRESS ? "no address"
- : "unknown error"));
- return ENOENT;
- }
- addr->s_addr = *(uint32_t *) he->h_addr;
+ struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_ERR_RL(&rl, "\"%s\" is not a valid IP address", host_name);
+ return ENOENT;
}
return 0;
}