/*
* Curl_getaddrinfo() - for Windows threading without ENABLE_IPV6.
*/
Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct hostent *h = NULL;
struct SessionHandle *data = conn->data;
in_addr_t in;
*waitp = 0; /* don't wait, we act synchronously */
in = inet_addr(hostname);
if (in != CURL_INADDR_NONE)
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(in, hostname, port);
/* fire up a new resolver thread! */
if (init_resolve_thread(conn, hostname, port, NULL)) {
*waitp = TRUE; /* please wait for the response */
return NULL;
}
/* fall-back to blocking version */
infof(data, "init_resolve_thread() failed for %s; %s\n",
hostname, Curl_strerror(conn, ERRNO));
h = gethostbyname(hostname);
if (!h) {
infof(data, "gethostbyname(2) failed for %s:%d; %s\n",
hostname, port, Curl_strerror(conn, SOCKERRNO));
return NULL;
}
return Curl_he2ai(h, port);
}
/*
* Curl_getaddrinfo() - for platforms without getaddrinfo
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct in_addr in;
*waitp = 0; /* default to synchronous response */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(AF_INET, &in, hostname, port);
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, NULL)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}
/* fall-back to blocking version */
return Curl_ipv4_resolve_r(hostname, port);
}
/*
* Curl_getaddrinfo() - for Windows threading IPv6 enabled
*/
Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct addrinfo hints, *res;
int error;
char sbuf[NI_MAXSERV];
curl_socket_t s;
int pf;
struct SessionHandle *data = conn->data;
*waitp = FALSE; /* default to synch response */
/* see if we have an IPv6 stack */
s = socket(PF_INET6, SOCK_DGRAM, 0);
if (s == CURL_SOCKET_BAD) {
/* Some non-IPv6 stacks have been found to make very slow name resolves
* when PF_UNSPEC is used, so thus we switch to a mere PF_INET lookup if
* the stack seems to be a non-ipv6 one. */
pf = PF_INET;
}
else {
/* This seems to be an IPv6-capable stack, use PF_UNSPEC for the widest
* possible checks. And close the socket again.
*/
sclose(s);
/*
* Check if a more limited name resolve has been requested.
*/
switch(data->set.ip_version) {
case CURL_IPRESOLVE_V4:
pf = PF_INET;
break;
case CURL_IPRESOLVE_V6:
pf = PF_INET6;
break;
default:
pf = PF_UNSPEC;
break;
}
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = conn->socktype;
#if 0 /* removed nov 8 2005 before 7.15.1 */
hints.ai_flags = AI_CANONNAME;
#endif
itoa(port, sbuf, 10);
/* fire up a new resolver thread! */
if (init_resolve_thread(conn, hostname, port, &hints)) {
*waitp = TRUE; /* please wait for the response */
return NULL;
}
/* fall-back to blocking version */
infof(data, "init_resolve_thread() failed for %s; %s\n",
hostname, Curl_strerror(conn, ERRNO));
error = getaddrinfo(hostname, sbuf, &hints, &res);
if (error) {
infof(data, "getaddrinfo() failed for %s:%d; %s\n",
hostname, port, Curl_strerror(conn, SOCKERRNO));
return NULL;
}
return res;
}
/*
* Curl_resolver_getaddrinfo() - for getaddrinfo
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct addrinfo hints;
struct in_addr in;
Curl_addrinfo *res;
int error;
char sbuf[12];
int pf = PF_INET;
#ifdef CURLRES_IPV6
struct in6_addr in6;
#endif /* CURLRES_IPV6 */
*waitp = 0; /* default to synchronous response */
#ifndef USE_RESOLVE_ON_IPS
/* First check if this is an IPv4 address string */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(AF_INET, &in, hostname, port);
#ifdef CURLRES_IPV6
/* check if this is an IPv6 address string */
if(Curl_inet_pton(AF_INET6, hostname, &in6) > 0)
/* This is an IPv6 address literal */
return Curl_ip2addr(AF_INET6, &in6, hostname, port);
#endif /* CURLRES_IPV6 */
#endif /* !USE_RESOLVE_ON_IPS */
#ifdef CURLRES_IPV6
/*
* Check if a limited name resolve has been requested.
*/
switch(conn->ip_version) {
case CURL_IPRESOLVE_V4:
pf = PF_INET;
break;
case CURL_IPRESOLVE_V6:
pf = PF_INET6;
break;
default:
pf = PF_UNSPEC;
break;
}
if((pf != PF_INET) && !Curl_ipv6works())
/* The stack seems to be a non-IPv6 one */
pf = PF_INET;
#endif /* CURLRES_IPV6 */
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = conn->socktype;
snprintf(sbuf, sizeof(sbuf), "%d", port);
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, &hints)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}
/* fall-back to blocking version */
infof(conn->data, "init_resolve_thread() failed for %s; %s\n",
hostname, Curl_strerror(conn, ERRNO));
error = Curl_getaddrinfo_ex(hostname, sbuf, &hints, &res);
if(error) {
infof(conn->data, "getaddrinfo() failed for %s:%d; %s\n",
hostname, port, Curl_strerror(conn, SOCKERRNO));
return NULL;
}
else {
Curl_addrinfo_set_port(res, port);
}
return res;
}
/*
* Curl_resolver_getaddrinfo() - for getaddrinfo
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(CURL *data,
const char *hostname,
int port,
int *waitp)
{
struct connectdata *conn = data->easy_conn;
struct addrinfo hints;
Curl_addrinfo *res;
int error;
char sbuf[12];
int pf = PF_INET;
*waitp = 0; /* default to synchronous response */
#ifndef USE_RESOLVE_ON_IPS
res = Curl_str2addr(hostname, port);
if(res)
return res;
#endif
#ifdef CURLRES_IPV6
/*
* Check if a limited name resolve has been requested.
*/
switch(conn->ip_version) {
case CURL_IPRESOLVE_V4:
pf = PF_INET;
break;
case CURL_IPRESOLVE_V6:
pf = PF_INET6;
break;
default:
pf = PF_UNSPEC;
break;
}
if((pf != PF_INET) && !Curl_ipv6works())
/* The stack seems to be a non-IPv6 one */
pf = PF_INET;
#endif /* CURLRES_IPV6 */
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = conn->socktype;
snprintf(sbuf, sizeof(sbuf), "%d", port);
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, &hints)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}
/* fall-back to blocking version */
infof(data, "init_resolve_thread() failed for %s; %s\n",
hostname, Curl_strerror(conn, errno));
error = Curl_getaddrinfo_ex(hostname, sbuf, &hints, &res);
if(error) {
infof(data, "getaddrinfo() failed for %s:%d; %s\n",
hostname, port, Curl_strerror(conn, SOCKERRNO));
return NULL;
}
else {
Curl_addrinfo_set_port(res, port);
}
return res;
}
