/* Resolves the given hostname or IP address with getaddrinfo, and stores
all results into a linked list.
The rest of the behavior is same as resolve(). */
int resolve_multi(const char *hostname, unsigned short port,
struct sockaddr_list *sl, int af)
{
int flags;
flags = 0;
if (o.nodns)
flags |= AI_NUMERICHOST;
return resolve_internal(hostname, port, sl, af, flags, 1);
}
/* Resolves the given hostname or IP address with getaddrinfo, and stores the
first result (if any) in *ss and *sslen. The value of port will be set in the
appropriate place in *ss; set to 0 if you don't care. af may be AF_UNSPEC, in
which case getaddrinfo may return e.g. both IPv4 and IPv6 results; which one
is first depends on the system configuration. Returns 0 on success, or a
getaddrinfo return code (suitable for passing to gai_strerror) on failure.
*ss and *sslen are always defined when this function returns 0.
If the global o.nodns is true, then do not resolve any names with DNS. */
int resolve(const char *hostname, unsigned short port,
struct sockaddr_storage *ss, size_t *sslen, int af)
{
int flags;
flags = 0;
if (o.nodns)
flags |= AI_NUMERICHOST;
return resolve_internal(hostname, port, ss, sslen, af, flags);
}
/* Resolves the given hostname or IP address with getaddrinfo, and stores the
first result (if any) in *ss and *sslen. The value of port will be set in the
appropriate place in *ss; set to 0 if you don't care. af may be AF_UNSPEC, in
which case getaddrinfo may return e.g. both IPv4 and IPv6 results; which one
is first depends on the system configuration. Returns 0 on success, or a
getaddrinfo return code (suitable for passing to gai_strerror) on failure.
*ss and *sslen are always defined when this function returns 0.
If the global o.nodns is true, then do not resolve any names with DNS. */
int resolve(const char *hostname, unsigned short port,
struct sockaddr_storage *ss, size_t *sslen, int af)
{
int flags;
struct sockaddr_list sl;
int result;
flags = 0;
if (o.nodns)
flags |= AI_NUMERICHOST;
result = resolve_internal(hostname, port, &sl, af, flags, 0);
*ss = sl.addr.storage;
*sslen = sl.addrlen;
return result;
}
