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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "conn_udp.h"
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <unistd.h>
int
udp_open(uint16 port)
{
int sock, ret;
struct sockaddr_in addr;
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock == -1)
return -1;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(port);
ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
if (ret == -1) {
close(sock);
return -1;
}
/* Put the socket in non-blocking mode */
if (fcntl(sock, F_SETFL, fcntl(sock, F_GETFL) | O_NONBLOCK) < 0) {
close(sock);
return -1;
}
return sock;
}
int
udp_send(int sock, struct sockaddr *dest, const char *data, int size)
{
return sendto(sock, data, size, MSG_CONFIRM, dest, sizeof(*dest));
}
int
udp_recv(int sock, char *buffer, int buf_size)
{
struct sockaddr_in remaddr;
socklen_t addrlen = sizeof(remaddr);
return recvfrom(sock, buffer, buf_size, 0, (struct sockaddr *)&remaddr,
&addrlen);
}
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