72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
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/* libs/cutils/socket_loopback_server.c
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**
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** Copyright 2006, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#include <cutils/sockets.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stddef.h>
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#define LISTEN_BACKLOG 4
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#ifndef HAVE_WINSOCK
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#include <sys/socket.h>
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#include <sys/select.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#endif
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/* open listen() port on loopback interface */
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int socket_loopback_server(int port, int type)
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{
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struct sockaddr_in addr;
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size_t alen;
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int s, n;
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(port);
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addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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s = socket(AF_INET, type, 0);
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if(s < 0) return -1;
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n = 1;
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setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n));
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if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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close(s);
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return -1;
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}
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if (type == SOCK_STREAM) {
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int ret;
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ret = listen(s, LISTEN_BACKLOG);
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if (ret < 0) {
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close(s);
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return -1;
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}
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}
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return s;
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}
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