Revision history [back]

The sys/socket.h library is specific to Unix-like operating systems and is not available in a native Windows environment. However, the Windows equivalent library is Winsock (Windows Sockets). To use Winsock, you can include the header files <winsock2.h> and <ws2tcpip.h> in your program and link to the Winsock library. Here are the necessary steps:

1. Include the <winsock2.h> and <ws2tcpip.h> header files in your program:

#include <winsock2.h>
#include <ws2tcpip.h>

1. Initialize the Winsock library by calling WSAStartup() function at the beginning of your program:

WSADATA wsaData;
int startupResult = WSAStartup(MAKEWORD(2,2), &wsaData);
if (startupResult != 0) {
  // Handle initialization error
}

1. Use the Winsock functions to create and manipulate sockets, such as socket(), bind(), connect(), listen(), send(), and recv():

int sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == INVALID_SOCKET) {
  // Handle socket creation error
}

sockaddr_in serverAddr;
serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons(PORT);
inet_pton(AF_INET, SERVER_IP, &serverAddr.sin_addr);

int connectResult = connect(sockfd, (sockaddr*)&serverAddr, sizeof(serverAddr));
if (connectResult == SOCKET_ERROR) {
  // Handle connection error
}

char buf[1024];
int receivedBytes = recv(sockfd, buf, sizeof(buf), 0);
if (receivedBytes == SOCKET_ERROR) {
  // Handle receive error
}

1. When you're done with the Winsock library, clean up by calling WSACleanup() function:

WSACleanup();

Note that Winsock supports most of the functionalities in sys/socket.h, but there might be some differences in the functions and data structures. Therefore, it's important to refer to the Winsock documentation for specific syntax and usage.