это, вероятно, тривиально, но мне нужна помощь в том, чтобы мой сервер прослушивал мой IP-адрес интернет-провайдера, а не локальный хост в моей программе обмена сообщениями клиент-сервер. Мой сервер и клиент выглядит следующим образом.
Сервер
/*Server */
#define _WIN32_WINNT 0x501
#include <iostream>
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
using namespace std;
const int winsock_version = 2;
#define PORT "3490"
#define MAX_NUM_CONNECTIONS 10
int main(void){
WSADATA wsadata;
if (WSAStartup(MAKEWORD(winsock_version,0),&wsadata) == 0){
cout<<"-WSAStartup Initialized." << endl;
struct addrinfo hints,*res;
int sock_fd;
memset(&hints,0,sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
if (getaddrinfo(NULL,PORT,&hints,&res) != 0){
cout<<"-Call to getaddress was unsucceful." << endl;
}
if( (sock_fd = socket(res->ai_family,res->ai_socktype,res->ai_protocol)) == -1){
cout<<"-Unable to Create socket." << endl;
}
if ( (bind(sock_fd, res->ai_addr, res->ai_addrlen)) != -1 ){
cout<<"-binding successful." << endl;
}
if ( (listen(sock_fd,MAX_NUM_CONNECTIONS)) != -1){
cout<<"-Listening for incoming connections." << endl;
}
//-------------------------------------------------------------
struct sockaddr_storage incming_info;
socklen_t sin_size;
sin_size = sizeof incming_info;
int new_fd;
new_fd = accept(sock_fd, (struct sockaddr*)&incming_info,&sin_size);
if (new_fd == -1){
cout<<"-Accepting error." << endl;
}
if(new_fd == INVALID_SOCKET){
cout<<"-INVALID SOCKET ERROR." << endl;
}
char buffer[128];
while(true){
int ret_val;
ret_val = recv(new_fd,buffer,sizeof(buffer),0);
if(ret_val == -1){
cout<<"Receiving Error." << endl;
break;
}else if(ret_val == 0){
cout<<"Connection has been closed!." << endl;
break;
}else{
cout<<"Server: " << buffer<< endl;
}
}
cout<<"-Closing connection" << endl;
closesocket(new_fd);
}else{
cout<<"-WSAStartup Initialization failed." << endl;
if(WSACleanup()!=0){
cout<<"-WSACleanup Successful." << endl;
}else{
cout<<"-WSACleanup Failed." << endl;
}
}
return 0;
}
клиент
/*client*/
#define _WIN32_WINNT 0x501
#include <iostream>
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
using namespace std;
#define PORT "3490"
#define SERVER "localhost"
const int winsockVersion = 2;
int main(void){
WSADATA wsadata;
if ( (WSAStartup(MAKEWORD(2,0),&wsadata)) == 0){
cout<<"-WSAStartup Initialized." << endl;
struct addrinfo hints, *res;
int sockfd;
memset(&hints,0,sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if (getaddrinfo(SERVER,PORT,&hints,&res) != 0){
cout<<"-getaddrinfo unsuccessful." << endl;
}
if ( (sockfd = socket(res->ai_family,res->ai_socktype,res->ai_protocol)) == -1 ){
cout<<"-Unable to create socket." << endl;
}
if ( (connect(sockfd,res->ai_addr,res->ai_addrlen)) != -1 ){
cout<<"-Connection Established." << endl;
}
cout<<"-Client connecting to: " << res->ai_addr << endl;
while(true){
string text_buff;
cout<<"Enter text: ";
getline(cin,text_buff);
if( (send(sockfd,text_buff.c_str(),text_buff.length()+1,0)) != -1 ){
cout<<"-text_buff sent!." << endl;
}
}
}else{
cout<<"-WSAStartup Initialization failed." << endl;
if(WSACleanup()!=0){
cout<<"-WSACleanup Successful." << endl;
}else{
cout<<"-WSACleanup Failed." << endl;
}
}
return 0;
}
Я знаю, как (я думаю) указать клиента, чтобы он подключился к моему IP-адресу XXX.XX.XXX.XX, изменив SERVER в client.cpp, но я не уверен, как получить сервер для прослушивания на этом?.