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/****************************************************************
* *
* Copyright (c) 2001-2017 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* get socket routines address */
#include "mdef.h"
#include "gtm_netdb.h"
#include "gtm_unistd.h"
#include <errno.h>
#include "gtm_socket.h"
#include "gtm_inet.h"
#include "gtm_string.h"
#include "gtm_select.h"
int gtm_connect(int socket, struct sockaddr *address, size_t address_len)
{
int res, sockerror;
GTM_SOCKLEN_TYPE sockerrorlen;
fd_set writefds;
res = connect(socket, address, (GTM_SOCKLEN_TYPE)address_len);
if ((-1 == res) && ((EINTR == errno) || (EINPROGRESS == errno)
#if (defined(__osf__) && defined(__alpha)) || defined(__sun) || defined(__vms)
|| (EWOULDBLOCK == errno)
#endif
))
{/* connection attempt will continue so wait for completion */
do
{ /* a plain connect will usually timeout after 75 seconds with ETIMEDOUT */
FD_ZERO(&writefds);
FD_SET(socket, &writefds);
res = select(socket + 1, NULL, &writefds, NULL, NULL);
if (-1 == res && EINTR == errno)
continue;
if (0 < res)
{ /* check for socket error */
sockerrorlen = SIZEOF(sockerror);
res = getsockopt(socket, SOL_SOCKET, SO_ERROR, &sockerror, &sockerrorlen);
if (0 == res && 0 != sockerror)
{ /* return socket error */
res = -1;
errno = sockerror;
}
}
break;
} while (TRUE);
} else if (-1 == res && EISCONN == errno)
res = 0; /* socket is already connected */
return(res);
}
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