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mirror of git://git.gnupg.org/gnupg.git synced 2024-12-24 10:39:57 +01:00
gnupg/common/w32-afunix.c
Werner Koch b008274afd Nuked almost all trailing white space.
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces.  In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much.  For future commits the pre-commit scripts
checks that this won't happen again.
2011-02-04 12:57:53 +01:00

138 lines
3.0 KiB
C

/* w32-afunix.c - AF_UNIX emulation for Windows (Client only).
* 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/>.
*/
/* Use of this code is deprecated - you better use the socket wrappers
from libassuan. */
#ifdef _WIN32
#include <stdio.h>
#include <stdlib.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <io.h>
#include <errno.h>
#include "w32-afunix.h"
/* The buffer for NONCE needs to be at least 16 bytes. Returns 0 on
success. */
static int
read_port_and_nonce (const char *fname, unsigned short *port, char *nonce)
{
FILE *fp;
char buffer[50], *p;
size_t nread;
int aval;
fp = fopen (fname, "rb");
if (!fp)
return -1;
nread = fread (buffer, 1, sizeof buffer - 1, fp);
fclose (fp);
if (!nread)
{
gpg_err_set_errno (EIO);
return -1;
}
buffer[nread] = 0;
aval = atoi (buffer);
if (aval < 1 || aval > 65535)
{
gpg_err_set_errno (EINVAL);
return -1;
}
*port = (unsigned int)aval;
for (p=buffer; nread && *p != '\n'; p++, nread--)
;
if (*p != '\n' || nread != 17)
{
gpg_err_set_errno (EINVAL);
return -1;
}
p++; nread--;
memcpy (nonce, p, 16);
return 0;
}
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;
unsigned short port;
char nonce[16];
int ret;
(void)addrlen;
unaddr = (struct sockaddr_un *)addr;
if (read_port_and_nonce (unaddr->sun_path, &port, nonce))
return -1;
myaddr.sin_family = AF_INET;
myaddr.sin_port = htons (port);
myaddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
/* Set return values. */
unaddr->sun_family = myaddr.sin_family;
unaddr->sun_port = myaddr.sin_port;
unaddr->sun_addr.s_addr = myaddr.sin_addr.s_addr;
ret = connect (sockfd, (struct sockaddr *)&myaddr, sizeof myaddr);
if (!ret)
{
/* Send the nonce. */
ret = send (sockfd, nonce, 16, 0);
if (ret >= 0 && ret != 16)
{
gpg_err_set_errno (EIO);
ret = -1;
}
}
return ret;
}
#endif /*_WIN32*/