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#include "udp_socket.h"
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "info.h"
UDPSocket::UDPSocket(int port, std::string addr) : Socket(port, addr)
{
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(sock == -1) MIaV::info->error("Could not create UDP socket: %s", strerror(errno));
}
int UDPSocket::write(void *buf, int size)
{
int n;
if(!connected) {
memset((char *) &sa, sizeof(sa), 0);
sa.sin_family = AF_INET;
sa.sin_port = htons(prt);
if (inet_aton(addr.c_str(), &sa.sin_addr)==0) {
MIaV::info->error("An error occurred in inet_aton! %s", strerror(errno));
}
connected = true;
}
n = sendto(sock, buf, size, 0, (const sockaddr*)&sa, (socklen_t)sizeof(sa));
if(n==-1) {
MIaV::info->error("An error occurred! %s", strerror(errno));
}
return n;
}
int UDPSocket::read(void *buf, int size)
{
int n;
if(!connected) {
struct sockaddr_in si_me;
si_me.sin_family = AF_INET;
si_me.sin_port = htons(prt);
si_me.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(sock, (const sockaddr*)&si_me, (socklen_t)sizeof(si_me))==-1) {
strerr = "UDPSocet failed on bind. ";
strerr.append(strerror(errno));
return -1;
}
connected = true;
}
int slen = sizeof(sa);
n = recvfrom(sock, buf, size, 0, (sockaddr*)&sa, (socklen_t*)&slen);
if(n == -1) {
strerr = "UDPSocet failed on read. ";
strerr.append(strerror(errno));
return -1;
}
setAddress(inet_ntoa(sa.sin_addr));
setPort(sa.sin_port);
return n;
}
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