mirror of git://git.gnupg.org/gnupg.git
138 lines
3.0 KiB
C
138 lines
3.0 KiB
C
/* w32-afunix.c - AF_UNIX emulation for Windows (Client only).
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* Copyright (C) 2004, 2006 g10 Code GmbH
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*
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* This file is part of JNLIB.
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*
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* JNLIB is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* JNLIB is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* Use of this code is preprecated - you better use the sockt wrappers
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from libassuan. */
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#ifdef _WIN32
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#include <stdio.h>
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#include <stdlib.h>
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <io.h>
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#include <errno.h>
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#include "w32-afunix.h"
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/* The buffer for NONCE needs to be at least 16 bytes. Returns 0 on
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success. */
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static int
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read_port_and_nonce (const char *fname, unsigned short *port, char *nonce)
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{
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FILE *fp;
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char buffer[50], *p;
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size_t nread;
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int aval;
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fp = fopen (fname, "rb");
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if (!fp)
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return -1;
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nread = fread (buffer, 1, sizeof buffer - 1, fp);
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fclose (fp);
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if (!nread)
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{
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errno = ENOFILE;
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return -1;
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}
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buffer[nread] = 0;
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aval = atoi (buffer);
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if (aval < 1 || aval > 65535)
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{
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errno = EINVAL;
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return -1;
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}
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*port = (unsigned int)aval;
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for (p=buffer; nread && *p != '\n'; p++, nread--)
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;
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if (*p != '\n' || nread != 17)
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{
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errno = EINVAL;
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return -1;
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}
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p++; nread--;
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memcpy (nonce, p, 16);
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return 0;
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}
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int
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_w32_close (int fd)
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{
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int rc = closesocket (fd);
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if (rc && WSAGetLastError () == WSAENOTSOCK)
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rc = close (fd);
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return rc;
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}
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int
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_w32_sock_new (int domain, int type, int proto)
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{
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if (domain == AF_UNIX || domain == AF_LOCAL)
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domain = AF_INET;
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return socket (domain, type, proto);
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}
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int
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_w32_sock_connect (int sockfd, struct sockaddr *addr, int addrlen)
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{
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struct sockaddr_in myaddr;
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struct sockaddr_un *unaddr;
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unsigned short port;
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char nonce[16];
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int ret;
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(void)addrlen;
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unaddr = (struct sockaddr_un *)addr;
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if (read_port_and_nonce (unaddr->sun_path, &port, nonce))
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return -1;
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myaddr.sin_family = AF_INET;
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myaddr.sin_port = htons (port);
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myaddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
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/* Set return values. */
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unaddr->sun_family = myaddr.sin_family;
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unaddr->sun_port = myaddr.sin_port;
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unaddr->sun_addr.s_addr = myaddr.sin_addr.s_addr;
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ret = connect (sockfd, (struct sockaddr *)&myaddr, sizeof myaddr);
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if (!ret)
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{
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/* Send the nonce. */
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ret = send (sockfd, nonce, 16, 0);
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if (ret >= 0 && ret != 16)
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{
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errno = EIO;
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ret = -1;
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}
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}
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return ret;
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}
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#endif /*_WIN32*/
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