status_t
BNetEndpoint::Bind(const BNetAddress& address)
{
if (fSocket < 0 && _SetupSocket() != B_OK)
return fStatus;
struct sockaddr_in addr;
status_t status = address.GetAddr(addr);
if (status != B_OK)
return status;
if (bind(fSocket, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
fStatus = errno;
Close();
return B_ERROR;
}
socklen_t addrSize = sizeof(addr);
if (getsockname(fSocket, (struct sockaddr *)&addr, &addrSize) < 0) {
fStatus = errno;
Close();
return B_ERROR;
}
fAddr.SetTo(addr);
return B_OK;
}
status_t
BNetEndpoint::Connect(const BNetAddress& address)
{
if (fSocket < 0 && _SetupSocket() != B_OK)
return fStatus;
sockaddr_in addr;
if (address.GetAddr(addr) != B_OK)
return B_ERROR;
if (connect(fSocket, (sockaddr *) &addr, sizeof(addr)) < 0) {
Close();
fStatus = errno;
return B_ERROR;
}
socklen_t addrSize = sizeof(addr);
if (getpeername(fSocket, (sockaddr *) &addr, &addrSize) < 0) {
Close();
fStatus = errno;
return B_ERROR;
}
fPeer.SetTo(addr);
return B_OK;
}
int32
BNetEndpoint::SendTo(const void* buffer, size_t length,
const BNetAddress& address, int flags)
{
if (fSocket < 0 && _SetupSocket() != B_OK)
return fStatus;
struct sockaddr_in addr;
if (address.GetAddr(addr) != B_OK)
return B_ERROR;
ssize_t bytesSent = sendto(fSocket, buffer, length, flags,
(struct sockaddr *) &addr, sizeof(addr));
if (bytesSent < 0)
fStatus = errno;
return bytesSent;
}
bool
FtpClient::_OpenDataConnection()
{
string host, cmd, replyString;
unsigned short port;
BNetAddress addr;
int i, code, codeType;
bool rc = false;
struct sockaddr_in sa;
delete fData;
fData = 0;
fData = new BNetEndpoint;
if (_TestState(ftp_passive)) {
// Here we send a "pasv" command and connect to the remote server
// on the port it sends back to us
cmd = "PASV";
if (_SendRequest(cmd)) {
if (_GetReply(replyString, code, codeType)) {
if (codeType == 2) {
// It should give us something like:
// "227 Entering Passive Mode (192,168,1,1,10,187)"
int paddr[6];
unsigned char ucaddr[6];
i = replyString.find('(');
i++;
replyString = replyString.substr(i, replyString.find(')') - i);
if (sscanf(replyString.c_str(), "%d,%d,%d,%d,%d,%d",
&paddr[0], &paddr[1], &paddr[2], &paddr[3],
&paddr[4], &paddr[5]) != 6) {
// cannot do passive. Do a little harmless rercursion here
_ClearState(ftp_passive);
return _OpenDataConnection();
}
for (i = 0; i < 6; i++)
ucaddr[i] = (unsigned char)(paddr[i] & 0xff);
memcpy(&sa.sin_addr, &ucaddr[0], (size_t) 4);
memcpy(&sa.sin_port, &ucaddr[4], (size_t) 2);
addr.SetTo(sa);
if (fData->Connect(addr) == B_NO_ERROR)
rc = true;
}
}
} else {
// cannot do passive. Do a little harmless rercursion here
_ClearState(ftp_passive);
rc = _OpenDataConnection();
}
} else {
// Here we bind to a local port and send a PORT command
if (fData->Bind() == B_NO_ERROR) {
char buf[255];
fData->Listen();
addr = fData->LocalAddr();
addr.GetAddr(buf, &port);
host = buf;
i = 0;
while (i >= 0) {
i = host.find('.', i);
if (i >= 0)
host[i] = ',';
}
sprintf(buf, ",%d,%d", (port & 0xff00) >> 8, port & 0x00ff);
cmd = "PORT ";
cmd += host;
cmd += buf;
_SendRequest(cmd);
_GetReply(replyString, code, codeType);
// PORT failure is in the 500-range
if (codeType == 2)
rc = true;
}
}