tor-android/external/badvpn_dns/system/BConnectionGeneric.h

145 lines
5.2 KiB
C
Raw Normal View History

2015-01-25 11:08:34 +00:00
/**
* @file BConnectionGeneric.h
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef BADVPN_BCONNECTION_GENERIC_H
#define BADVPN_BCONNECTION_GENERIC_H
#include <string.h>
#include <misc/debug.h>
#include <misc/strdup.h>
#include <base/BLog.h>
#include <system/BConnection.h>
#define BCONNECTION_ADDR_TYPE_BADDR 1
#define BCONNECTION_ADDR_TYPE_UNIX 2
struct BConnection_addr {
int type;
union {
BAddr baddr;
struct {
const char *str;
size_t len;
} unix_socket_path;
} u;
};
static struct BConnection_addr BConnection_addr_baddr (BAddr baddr)
{
struct BConnection_addr addr;
addr.type = BCONNECTION_ADDR_TYPE_BADDR;
addr.u.baddr = baddr;
return addr;
}
static struct BConnection_addr BConnection_addr_unix (const char *unix_socket_path, size_t len)
{
struct BConnection_addr addr;
addr.type = BCONNECTION_ADDR_TYPE_UNIX;
addr.u.unix_socket_path.str = unix_socket_path;
addr.u.unix_socket_path.len = len;
return addr;
}
static int BListener_InitGeneric (BListener *o, struct BConnection_addr addr, BReactor *reactor, void *user,
BListener_handler handler) WARN_UNUSED;
static int BConnector_InitGeneric (BConnector *o, struct BConnection_addr addr, BReactor *reactor, void *user,
BConnector_handler handler) WARN_UNUSED;
static int BListener_InitGeneric (BListener *o, struct BConnection_addr addr, BReactor *reactor, void *user,
BListener_handler handler)
{
ASSERT(handler)
BNetwork_Assert();
ASSERT(addr.type != BCONNECTION_ADDR_TYPE_UNIX || !memchr(addr.u.unix_socket_path.str, '\0', addr.u.unix_socket_path.len))
switch (addr.type) {
case BCONNECTION_ADDR_TYPE_BADDR: {
return BListener_Init(o, addr.u.baddr, reactor, user, handler);
} break;
case BCONNECTION_ADDR_TYPE_UNIX: {
#ifdef BADVPN_USE_WINAPI
BLog_LogToChannel(BLOG_CHANNEL_BConnection, BLOG_ERROR, "unix sockets not supported");
return 0;
#else
char *str = b_strdup_bin(addr.u.unix_socket_path.str, addr.u.unix_socket_path.len);
if (!str) {
BLog_LogToChannel(BLOG_CHANNEL_BConnection, BLOG_ERROR, "b_strdup_bin failed");
return 0;
}
int res = BListener_InitUnix(o, str, reactor, user, handler);
free(str);
return res;
#endif
} break;
default:
ASSERT(0);
return 0;
}
}
static int BConnector_InitGeneric (BConnector *o, struct BConnection_addr addr, BReactor *reactor, void *user,
BConnector_handler handler)
{
ASSERT(handler)
BNetwork_Assert();
ASSERT(addr.type != BCONNECTION_ADDR_TYPE_UNIX || !memchr(addr.u.unix_socket_path.str, '\0', addr.u.unix_socket_path.len))
switch (addr.type) {
case BCONNECTION_ADDR_TYPE_BADDR: {
return BConnector_Init(o, addr.u.baddr, reactor, user, handler);
} break;
case BCONNECTION_ADDR_TYPE_UNIX: {
#ifdef BADVPN_USE_WINAPI
BLog_LogToChannel(BLOG_CHANNEL_BConnection, BLOG_ERROR, "unix sockets not supported");
return 0;
#else
char *str = b_strdup_bin(addr.u.unix_socket_path.str, addr.u.unix_socket_path.len);
if (!str) {
BLog_LogToChannel(BLOG_CHANNEL_BConnection, BLOG_ERROR, "b_strdup_bin failed");
return 0;
}
int res = BConnector_InitUnix(o, str, reactor, user, handler);
free(str);
return res;
#endif
} break;
default:
ASSERT(0);
return 0;
}
}
#endif