CURLcode Curl_speedcheck(struct Curl_easy *data,
struct timeval now)
{
if((data->progress.current_speed >= 0) &&
data->set.low_speed_time &&
(Curl_tvlong(data->state.keeps_speed) != 0) &&
(data->progress.current_speed < data->set.low_speed_limit)) {
long howlong = Curl_tvdiff(now, data->state.keeps_speed);
long nextcheck = (data->set.low_speed_time * 1000) - howlong;
/* We are now below the "low speed limit". If we are below it
for "low speed time" seconds we consider that enough reason
to abort the download. */
if(nextcheck <= 0) {
/* we have been this slow for long enough, now die */
failf(data,
"Operation too slow. "
"Less than %ld bytes/sec transferred the last %ld seconds",
data->set.low_speed_limit,
data->set.low_speed_time);
return CURLE_OPERATION_TIMEDOUT;
}
else {
/* wait complete low_speed_time */
Curl_expire_latest(data, nextcheck);
}
}
else {
/* we keep up the required speed all right */
data->state.keeps_speed = now;
if(data->set.low_speed_limit)
/* if there is a low speed limit enabled, we set the expire timer to
make this connection's speed get checked again no later than when
this time is up */
Curl_expire_latest(data, data->set.low_speed_time*1000);
}
return CURLE_OK;
}
int Curl_resolver_getsock(struct connectdata *conn,
curl_socket_t *socks,
int numsocks)
{
struct timeval maxtime;
struct timeval timebuf;
struct timeval *timeout;
long milli;
int max = ares_getsock((ares_channel)conn->data->state.resolver,
(ares_socket_t *)socks, numsocks);
maxtime.tv_sec = CURL_TIMEOUT_RESOLVE;
maxtime.tv_usec = 0;
timeout = ares_timeout((ares_channel)conn->data->state.resolver, &maxtime,
&timebuf);
milli = (timeout->tv_sec * 1000) + (timeout->tv_usec/1000);
if(milli == 0)
milli += 10;
Curl_expire_latest(conn->data, milli);
return max;
}
/*
* singleipconnect()
*
* Note that even on connect fail it returns CURLE_OK, but with 'sock' set to
* CURL_SOCKET_BAD. Other errors will however return proper errors.
*
* singleipconnect() connects to the given IP only, and it may return without
* having connected.
*/
static CURLcode singleipconnect(struct connectdata *conn,
const Curl_addrinfo *ai,
curl_socket_t *sockp)
{
struct Curl_sockaddr_ex addr;
int rc;
int error = 0;
bool isconnected = FALSE;
struct SessionHandle *data = conn->data;
curl_socket_t sockfd;
CURLcode result;
char ipaddress[MAX_IPADR_LEN];
long port;
bool is_tcp;
*sockp = CURL_SOCKET_BAD;
result = Curl_socket(conn, ai, &addr, &sockfd);
if(result)
/* Failed to create the socket, but still return OK since we signal the
lack of socket as well. This allows the parent function to keep looping
over alternative addresses/socket families etc. */
return CURLE_OK;
/* store remote address and port used in this connection attempt */
if(!getaddressinfo((struct sockaddr*)&addr.sa_addr,
ipaddress, &port)) {
/* malformed address or bug in inet_ntop, try next address */
error = ERRNO;
failf(data, "sa_addr inet_ntop() failed with errno %d: %s",
error, Curl_strerror(conn, error));
Curl_closesocket(conn, sockfd);
return CURLE_OK;
}
infof(data, " Trying %s...\n", ipaddress);
is_tcp = (addr.family == AF_INET || addr.family == AF_INET6) &&
addr.socktype == SOCK_STREAM;
if(is_tcp && data->set.tcp_nodelay)
tcpnodelay(conn, sockfd);
nosigpipe(conn, sockfd);
Curl_sndbufset(sockfd);
if(is_tcp && data->set.tcp_keepalive)
tcpkeepalive(data, sockfd);
if(data->set.fsockopt) {
/* activate callback for setting socket options */
error = data->set.fsockopt(data->set.sockopt_client,
sockfd,
CURLSOCKTYPE_IPCXN);
if(error == CURL_SOCKOPT_ALREADY_CONNECTED)
isconnected = TRUE;
else if(error) {
Curl_closesocket(conn, sockfd); /* close the socket and bail out */
return CURLE_ABORTED_BY_CALLBACK;
}
}
/* possibly bind the local end to an IP, interface or port */
if(addr.family == AF_INET || addr.family == AF_INET6) {
result = bindlocal(conn, sockfd, addr.family,
Curl_ipv6_scope((struct sockaddr*)&addr.sa_addr));
if(result) {
Curl_closesocket(conn, sockfd); /* close socket and bail out */
if(result == CURLE_UNSUPPORTED_PROTOCOL) {
/* The address family is not supported on this interface.
We can continue trying addresses */
return CURLE_COULDNT_CONNECT;
}
return result;
}
}
/* set socket non-blocking */
(void)curlx_nonblock(sockfd, TRUE);
conn->connecttime = Curl_tvnow();
if(conn->num_addr > 1)
Curl_expire_latest(data, conn->timeoutms_per_addr);
/* Connect TCP sockets, bind UDP */
if(!isconnected && (conn->socktype == SOCK_STREAM)) {
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
if(-1 == rc)
error = SOCKERRNO;
}
else {
*sockp = sockfd;
return CURLE_OK;
}
#ifdef ENABLE_IPV6
conn->bits.ipv6 = (addr.family == AF_INET6)?TRUE:FALSE;
#endif
if(-1 == rc) {
switch(error) {
case EINPROGRESS:
case EWOULDBLOCK:
#if defined(EAGAIN)
#if (EAGAIN) != (EWOULDBLOCK)
/* On some platforms EAGAIN and EWOULDBLOCK are the
* same value, and on others they are different, hence
* the odd #if
*/
case EAGAIN:
#endif
#endif
result = CURLE_OK;
break;
default:
/* unknown error, fallthrough and try another address! */
infof(data, "Immediate connect fail for %s: %s\n",
ipaddress, Curl_strerror(conn,error));
data->state.os_errno = error;
/* connect failed */
Curl_closesocket(conn, sockfd);
result = CURLE_COULDNT_CONNECT;
}
}
if(!result)
*sockp = sockfd;
return result;
}
