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/* w32-afunix.c - AF_UNIX emulation for Windows.
* Copyright (C) 2004, 2006 g10 Code GmbH
*
* This file is part of JNLIB.
*
* JNLIB is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* JNLIB 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef _WIN32
#include <stdio.h>
#include <windows.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <io.h>
#include <errno.h>
#include "w32-afunix.h"
#ifndef S_IRGRP
# define S_IRGRP 0
# define S_IWGRP 0
#endif
int
_w32_close (int fd)
{
int rc = closesocket (fd);
if (rc && WSAGetLastError () == WSAENOTSOCK)
rc = close (fd);
return rc;
}
int
_w32_sock_new (int domain, int type, int proto)
{
if (domain == AF_UNIX || domain == AF_LOCAL)
domain = AF_INET;
return socket (domain, type, proto);
}
int
_w32_sock_connect (int sockfd, struct sockaddr * addr, int addrlen)
{
struct sockaddr_in myaddr;
struct sockaddr_un * unaddr;
FILE * fp;
int port;
unaddr = (struct sockaddr_un *)addr;
fp = fopen (unaddr->sun_path, "rb");
if (!fp)
return -1;
fscanf (fp, "%d", &port);
fclose (fp);
if (port < 0 || port > 65535)
{
errno = EINVAL;
return -1;
}
myaddr.sin_family = AF_INET;
myaddr.sin_port = port;
myaddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
/* we need this later. */
unaddr->sun_family = myaddr.sin_family;
unaddr->sun_port = myaddr.sin_port;
unaddr->sun_addr.s_addr = myaddr.sin_addr.s_addr;
return connect (sockfd, (struct sockaddr *)&myaddr, sizeof myaddr);
}
int
_w32_sock_bind (int sockfd, struct sockaddr *addr, int addrlen)
{
if (addr->sa_family == AF_LOCAL || addr->sa_family == AF_UNIX)
{
struct sockaddr_in myaddr;
struct sockaddr_un *unaddr;
int filefd;
FILE *fp;
int len = sizeof myaddr;
int rc;
unaddr = (struct sockaddr_un *)addr;
myaddr.sin_port = 0;
myaddr.sin_family = AF_INET;
myaddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
filefd = open (unaddr->sun_path,
(O_WRONLY|O_CREAT|O_EXCL|O_BINARY),
(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP));
if (filefd == -1)
{
if (errno == EEXIST)
errno = WSAEADDRINUSE;
return -1;
}
fp = fdopen (filefd, "wb");
if (!fp)
{
int save_e = errno;
close (filefd);
errno = save_e;
return -1;
}
rc = bind (sockfd, (struct sockaddr *)&myaddr, len);
if (!rc)
rc = getsockname (sockfd, (struct sockaddr *)&myaddr, &len);
if (rc)
{
int save_e = errno;
fclose (fp);
remove (unaddr->sun_path);
errno = save_e;
return rc;
}
fprintf (fp, "%d", myaddr.sin_port);
fclose (fp);
/* The caller expects these values. */
unaddr->sun_family = myaddr.sin_family;
unaddr->sun_port = myaddr.sin_port;
unaddr->sun_addr.s_addr = myaddr.sin_addr.s_addr;
return 0;
}
return bind (sockfd, addr, addrlen);
}
#endif /*_WIN32*/
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