60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
|
/* libs/cutils/socket_loopback_client.c
|
||
|
|
**
|
||
|
|
** Copyright 2006, The Android Open Source Project
|
||
|
|
**
|
||
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
** you may not use this file except in compliance with the License.
|
||
|
|
** You may obtain a copy of the License at
|
||
|
|
**
|
||
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
**
|
||
|
|
** Unless required by applicable law or agreed to in writing, software
|
||
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
** See the License for the specific language governing permissions and
|
||
|
|
** limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <cutils/sockets.h>
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stddef.h>
|
||
|
|
|
||
|
|
#ifndef HAVE_WINSOCK
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <sys/select.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <netinet/in.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Connect to port on the loopback IP interface. type is
|
||
|
|
* SOCK_STREAM or SOCK_DGRAM.
|
||
|
|
* return is a file descriptor or -1 on error
|
||
|
|
*/
|
||
|
|
int socket_loopback_client(int port, int type)
|
||
|
|
{
|
||
|
|
struct sockaddr_in addr;
|
||
|
|
socklen_t alen;
|
||
|
|
int s;
|
||
|
|
|
||
|
|
memset(&addr, 0, sizeof(addr));
|
||
|
|
addr.sin_family = AF_INET;
|
||
|
|
addr.sin_port = htons(port);
|
||
|
|
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
||
|
|
|
||
|
|
s = socket(AF_INET, type, 0);
|
||
|
|
if(s < 0) return -1;
|
||
|
|
|
||
|
|
if(connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
|
||
|
|
close(s);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return s;
|
||
|
|
|
||
|
|
}
|
||
|
|
|