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/* assuan-socket.c
* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
*
* This file is part of Assuan.
*
* Assuan 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.
*
* Assuan 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/>.
*/
#include <config.h>
#include <stdio.h>
#ifdef HAVE_W32_SYSTEM
#include <windows.h>
#include <io.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#endif
#include "assuan-defs.h"
/* Hacks for Slowaris. */
#ifndef PF_LOCAL
# ifdef PF_UNIX
# define PF_LOCAL PF_UNIX
# else
# define PF_LOCAL AF_UNIX
# endif
#endif
#ifndef AF_LOCAL
# define AF_LOCAL AF_UNIX
#endif
int
_assuan_close (assuan_fd_t fd)
{
#ifndef HAVE_W32_SYSTEM
return close (fd);
#else
int rc = closesocket (HANDLE2SOCKET(fd));
if (rc && WSAGetLastError () == WSAENOTSOCK)
rc = CloseHandle (fd);
return rc;
#endif
}
/* Return a new socket. Note that under W32 we consider a socket the
same as an System Handle; all functions using such a handle know
about this dual use and act accordingly. */
assuan_fd_t
_assuan_sock_new (int domain, int type, int proto)
{
#ifndef HAVE_W32_SYSTEM
return socket (domain, type, proto);
#else
if (domain == AF_UNIX || domain == AF_LOCAL)
domain = AF_INET;
return SOCKET2HANDLE(socket (domain, type, proto));
#endif
}
int
_assuan_sock_connect (assuan_fd_t sockfd, struct sockaddr *addr, int addrlen)
{
#ifndef HAVE_W32_SYSTEM
return connect (sockfd, addr, addrlen);
#else
struct sockaddr_in myaddr;
struct sockaddr_un * unaddr;
FILE * fp;
int port = 0;
unaddr = (struct sockaddr_un *)addr;
fp = fopen (unaddr->sun_path, "rb");
if (!fp)
return -1;
fscanf (fp, "%d", &port);
fclose (fp);
/* XXX: set errno in this case */
if (port < 0 || port > 65535)
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 (HANDLE2SOCKET(sockfd), (struct sockaddr *)&myaddr, sizeof myaddr);
#endif
}
int
_assuan_sock_bind (assuan_fd_t sockfd, struct sockaddr * addr, int addrlen)
{
#ifndef HAVE_W32_SYSTEM
return bind (sockfd, addr, addrlen);
#else
if (addr->sa_family == AF_LOCAL || addr->sa_family == AF_UNIX)
{
struct sockaddr_in myaddr;
struct sockaddr_un * unaddr;
FILE * fp;
int len = sizeof myaddr;
int rc;
myaddr.sin_port = 0;
myaddr.sin_family = AF_INET;
myaddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
rc = bind (HANDLE2SOCKET(sockfd), (struct sockaddr *)&myaddr, len);
if (rc)
return rc;
rc = getsockname (HANDLE2SOCKET(sockfd),
(struct sockaddr *)&myaddr, &len);
if (rc)
return rc;
unaddr = (struct sockaddr_un *)addr;
fp = fopen (unaddr->sun_path, "wb");
if (!fp)
return -1;
fprintf (fp, "%d", myaddr.sin_port);
fclose (fp);
/* 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 0;
}
return bind (HANDLE2SOCKET(sockfd), addr, addrlen);
#endif
}
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