static bool
DecodeHostAndPort (const char *host_and_port,
std::string &host_str,
std::string &port_str,
int32_t& port,
Error *error_ptr)
{
RegularExpression regex ("([^:]+):([0-9]+)");
if (regex.Execute (host_and_port, 2))
{
if (regex.GetMatchAtIndex (host_and_port, 1, host_str) &&
regex.GetMatchAtIndex (host_and_port, 2, port_str))
{
port = Args::StringToSInt32 (port_str.c_str(), INT32_MIN);
if (port != INT32_MIN)
{
if (error_ptr)
error_ptr->Clear();
return true;
}
}
}
host_str.clear();
port_str.clear();
port = INT32_MIN;
if (error_ptr)
error_ptr->SetErrorStringWithFormat("invalid host:port specification: '%s'", host_and_port);
return false;
}
ConnectionStatus
ConnectionFileDescriptor::SocketConnect (const char *host_and_port, Error *error_ptr)
{
lldb_private::LogIfAnyCategoriesSet (LIBLLDB_LOG_CONNECTION,
"%p ConnectionFileDescriptor::SocketConnect (host/port = %s)",
this, host_and_port);
Close (m_fd, false);
m_is_socket = true;
RegularExpression regex ("([^:]+):([0-9]+)");
if (regex.Execute (host_and_port, 2) == false)
{
if (error_ptr)
error_ptr->SetErrorStringWithFormat("Invalid host:port specification: '%s'.\n", host_and_port);
return eConnectionStatusError;
}
std::string host_str;
std::string port_str;
if (regex.GetMatchAtIndex (host_and_port, 1, host_str) == false ||
regex.GetMatchAtIndex (host_and_port, 2, port_str) == false)
{
if (error_ptr)
error_ptr->SetErrorStringWithFormat("Invalid host:port specification '%s'.\n", host_and_port);
return eConnectionStatusError;
}
int32_t port = Args::StringToSInt32 (port_str.c_str(), INT32_MIN);
if (port == INT32_MIN)
{
if (error_ptr)
error_ptr->SetErrorStringWithFormat("Invalid port '%s'.\n", port_str.c_str());
return eConnectionStatusError;
}
// Create the socket
m_fd = ::socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (m_fd == -1)
{
if (error_ptr)
error_ptr->SetErrorToErrno();
return eConnectionStatusError;
}
m_should_close_fd = true;
// Enable local address reuse
SetSocketOption (m_fd, SOL_SOCKET, SO_REUSEADDR, 1);
struct sockaddr_in sa;
::bzero (&sa, sizeof (sa));
sa.sin_family = AF_INET;
sa.sin_port = htons (port);
int inet_pton_result = ::inet_pton (AF_INET, host_str.c_str(), &sa.sin_addr);
if (inet_pton_result <= 0)
{
struct hostent *host_entry = gethostbyname (host_str.c_str());
if (host_entry)
host_str = ::inet_ntoa (*(struct in_addr *)*host_entry->h_addr_list);
inet_pton_result = ::inet_pton (AF_INET, host_str.c_str(), &sa.sin_addr);
if (inet_pton_result <= 0)
{
if (error_ptr)
{
if (inet_pton_result == -1)
error_ptr->SetErrorToErrno();
else
error_ptr->SetErrorStringWithFormat("Invalid host string: '%s'.\n", host_str.c_str());
}
Close (m_fd, false);
return eConnectionStatusError;
}
}
if (-1 == ::connect (m_fd, (const struct sockaddr *)&sa, sizeof(sa)))
{
if (error_ptr)
error_ptr->SetErrorToErrno();
Close (m_fd, false);
return eConnectionStatusError;
}
// Keep our TCP packets coming without any delays.
SetSocketOption (m_fd, IPPROTO_TCP, TCP_NODELAY, 1);
if (error_ptr)
error_ptr->Clear();
return eConnectionStatusSuccess;
}