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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#include <ndb_global.h>
#include <NdbOut.hpp>
#include <SocketClient.hpp>
#include <SocketAuthenticator.hpp>
SocketClient::SocketClient(const char *server_name, unsigned short port, SocketAuthenticator *sa)
{
m_auth= sa;
m_port= port;
m_server_name= server_name ? strdup(server_name) : 0;
m_sockfd= NDB_INVALID_SOCKET;
m_connect_timeout_sec= 0;
}
SocketClient::~SocketClient()
{
if (m_server_name)
free(m_server_name);
if (m_sockfd != NDB_INVALID_SOCKET)
NDB_CLOSE_SOCKET(m_sockfd);
if (m_auth)
delete m_auth;
}
bool
SocketClient::init()
{
if (m_sockfd != NDB_INVALID_SOCKET)
NDB_CLOSE_SOCKET(m_sockfd);
if (m_server_name)
{
memset(&m_servaddr, 0, sizeof(m_servaddr));
m_servaddr.sin_family = AF_INET;
m_servaddr.sin_port = htons(m_port);
// Convert ip address presentation format to numeric format
if (Ndb_getInAddr(&m_servaddr.sin_addr, m_server_name))
return false;
}
m_sockfd= socket(AF_INET, SOCK_STREAM, 0);
if (m_sockfd == NDB_INVALID_SOCKET) {
return false;
}
DBUG_PRINT("info",("NDB_SOCKET: %d", m_sockfd));
return true;
}
int
SocketClient::bind(const char* bindaddress, unsigned short localport)
{
if (m_sockfd == NDB_INVALID_SOCKET)
return -1;
struct sockaddr_in local;
memset(&local, 0, sizeof(local));
local.sin_family = AF_INET;
local.sin_port = htons(localport);
// Convert ip address presentation format to numeric format
if (Ndb_getInAddr(&local.sin_addr, bindaddress))
{
return errno ? errno : EINVAL;
}
const int on = 1;
if (setsockopt(m_sockfd, SOL_SOCKET, SO_REUSEADDR,
(const char*)&on, sizeof(on)) == -1) {
int ret = errno;
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return ret;
}
if (::bind(m_sockfd, (struct sockaddr*)&local, sizeof(local)) == -1)
{
int ret = errno;
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return ret;
}
return 0;
}
NDB_SOCKET_TYPE
SocketClient::connect(const char *toaddress, unsigned short toport)
{
fd_set rset, wset;
struct timeval tval;
int r;
bool use_timeout;
SOCKOPT_OPTLEN_TYPE len;
int flags;
if (m_sockfd == NDB_INVALID_SOCKET)
{
if (!init()) {
#ifdef VM_TRACE
ndbout << "SocketClient::connect() failed " << m_server_name << " " << m_port << endl;
#endif
return NDB_INVALID_SOCKET;
}
}
if (toaddress)
{
if (m_server_name)
free(m_server_name);
m_server_name = strdup(toaddress);
m_port = toport;
memset(&m_servaddr, 0, sizeof(m_servaddr));
m_servaddr.sin_family = AF_INET;
m_servaddr.sin_port = htons(toport);
// Convert ip address presentation format to numeric format
if (Ndb_getInAddr(&m_servaddr.sin_addr, m_server_name))
return NDB_INVALID_SOCKET;
}
flags= fcntl(m_sockfd, F_GETFL, 0);
fcntl(m_sockfd, F_SETFL, flags | O_NONBLOCK);
r= ::connect(m_sockfd, (struct sockaddr*) &m_servaddr, sizeof(m_servaddr));
if (r == 0)
goto done; // connected immediately.
if (r < 0 && (errno != EINPROGRESS)) {
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return NDB_INVALID_SOCKET;
}
FD_ZERO(&rset);
FD_SET(m_sockfd, &rset);
wset= rset;
tval.tv_sec= m_connect_timeout_sec;
tval.tv_usec= 0;
use_timeout= m_connect_timeout_sec;
if ((r= select(m_sockfd+1, &rset, &wset, NULL,
use_timeout? &tval : NULL)) == 0)
{
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return NDB_INVALID_SOCKET;
}
if (FD_ISSET(m_sockfd, &rset) || FD_ISSET(m_sockfd, &wset))
{
len= sizeof(r);
if (getsockopt(m_sockfd, SOL_SOCKET, SO_ERROR, &r, &len) < 0 || r)
{
// Solaris got an error... different than others
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return NDB_INVALID_SOCKET;
}
}
else
{
// select error, probably m_sockfd not set.
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return NDB_INVALID_SOCKET;
}
done:
fcntl(m_sockfd, F_SETFL, flags);
if (m_auth) {
if (!m_auth->client_authenticate(m_sockfd))
{
NDB_CLOSE_SOCKET(m_sockfd);
m_sockfd= NDB_INVALID_SOCKET;
return NDB_INVALID_SOCKET;
}
}
NDB_SOCKET_TYPE sockfd= m_sockfd;
m_sockfd= NDB_INVALID_SOCKET;
return sockfd;
}
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