83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
#define WIN32_LEAN_AND_MEAN // Say this...
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#include <windows.h>
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#include <winsock2.h>
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#include <stdio.h>
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#include <stdint.h>
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#pragma comment(lib, "Ws2_32.lib")
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/*
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Address info
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- ai_flag: address info flag
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- ai_family: addres info family AF_INET (ipv4) or AF_INET6 (ipv6)
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- ai_socktype: socket type SOCK_STREAM or SOCK_DGRAM
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- ai_protocol: use 0 for any
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- ai_addrlen: size of the ai_addr (below)
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- ai_addr: pointer sockaddr struct
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- ai_canonname: canonical hostname
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- ai_next: linked list to next node
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*/
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typedef struct addrinfo {
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int ai_flag; // address info flags
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int ai_family; // address info famitly ipv4/6
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int ai_socktype;
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int ai_protocol;
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size_t ai_addrlen;
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sockaddr *ai_addr;
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char *ai_canonname;
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addrinfo *ai_next;
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} addrinfo;
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/*
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Socket address info
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- sa_family: AF_XX (e.g AF_INET)
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- sa_data: 14 bytes of protocol address
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*/
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typedef struct sockaddr {
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unsigned short sa_family;
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char *sa_data[14];
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} sockaddr;
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typedef sockaddr_in {
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short int sin_family;
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unsigned short int sin_port;
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struct in_addr sin_addr;
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unsigned char sin_zero[8];
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} sockaddr_in;
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int main()
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{
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{
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WSADATA wsaData;
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if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
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fprintf(stderr, "WSAStartup failed.\n");
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exit(1);
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}
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if (LOBYTE(wsaData.wVersion) != 2 ||
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HIBYTE(wsaData.wVersion) != 2)
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{
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fprintf(stderr,"Versiion 2.2 of Winsock is not available.\n");
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WSACleanup();
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exit(2);
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}
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}
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printf("hellow world!");
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return(0);
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}
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