mirror of
https://github.com/intel/linux-sgx
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lzha101
137 lines
4.2 KiB
C++
137 lines
4.2 KiB
C++
/*
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* Copyright (C) 2011-2021 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <stdio.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 <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <errno.h>
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#include "fifo_def.h"
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#define SERVER_ADDR "127.0.0.1"
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#define SERVER_PORT 8888
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#define BUFFER_SIZE 1024
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#define UNIX_DOMAIN "/tmp/UNIX.domain"
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/* Function Description: this is for client to send request message and receive response message
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* Parameter Description:
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* [input] fiforequest: this is pointer to request message
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* [input] fiforequest_size: this is request message size
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* [output] fiforesponse: this is pointer for response message, the buffer is allocated inside this function
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* [output] fiforesponse_size: this is response message size
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* */
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int client_send_receive(FIFO_MSG *fiforequest, size_t fiforequest_size, FIFO_MSG **fiforesponse, size_t *fiforesponse_size)
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{
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int ret = 0;
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long byte_num;
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char recv_msg[BUFFER_SIZE + 1] = {0};
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FIFO_MSG * response = NULL;
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struct sockaddr_un server_addr;
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int server_sock_fd = socket(PF_UNIX, SOCK_STREAM, 0);
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if (server_sock_fd == -1)
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{
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printf("socket error");
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return -1;
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}
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server_addr.sun_family = AF_UNIX;
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strcpy(server_addr.sun_path, UNIX_DOMAIN);
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if (connect(server_sock_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) != 0)
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{
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printf("connection error, %s, line %d.\n", strerror(errno), __LINE__);
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ret = -1;
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goto CLEAN;
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}
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if ((byte_num = send(server_sock_fd, reinterpret_cast<char *>(fiforequest), static_cast<int>(fiforequest_size), 0)) == -1)
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{
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printf("connection error, %s, line %d..\n", strerror(errno), __LINE__);
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ret = -1;
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goto CLEAN;
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}
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byte_num = recv(server_sock_fd, reinterpret_cast<char *>(recv_msg), BUFFER_SIZE, 0);
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if (byte_num > 0)
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{
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if (byte_num > BUFFER_SIZE)
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{
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byte_num = BUFFER_SIZE;
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}
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recv_msg[byte_num] = '\0';
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response = (FIFO_MSG *)malloc((size_t)byte_num);
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if (!response)
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{
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printf("memory allocation failure.\n");
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ret = -1;
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goto CLEAN;
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}
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memset(response, 0, (size_t)byte_num);
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memcpy(response, recv_msg, (size_t)byte_num);
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*fiforesponse = response;
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*fiforesponse_size = (size_t)byte_num;
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ret = 0;
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}
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else if(byte_num < 0)
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{
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printf("server error, error message is %s!\n", strerror(errno));
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ret = -1;
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}
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else
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{
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printf("server exit!\n");
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ret = -1;
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}
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CLEAN:
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close(server_sock_fd);
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return ret;
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}
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