[소켓프로그래밍] 클라이언트 예제

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <winsock2.h> #pragma comment( lib,"ws2_32.lib") /*클라이언트 예제 */ void MyTemp() { WSADATA wsaData; if(0 != WSAStartup(MAKEWORD(2,2), &wsaData)) { printf("Fail \n"); } else { printf("Success \n"); } } int MyClient(char* ip,int port) { int re; int sid; struct sockaddr_in saddr; char msg[80]; MyTemp(); sid = socket(PF_INET,SOCK_STREAM,0); if(-1 == sid) { return -1; } memset(&saddr,0,sizeof(saddr)); saddr.sin_family=AF_INET; saddr.sin_addr.S_un.S_addr=inet_addr(ip); saddr.sin_port=htons(port); re= connect(sid,(struct sockaddr*)&saddr,sizeof(saddr)); if(-1 == re) { return -2; } recv(sid,msg,sizeof(msg),0); printf("%s\n",msg); closesocket(sid); WSACleanup(); return 0; } int main() { int re; int port; char ip[20]; printf("Input IP : "); scanf("%s",ip); printf("Input Port : "); scanf("%d",&port); re=MyClient(ip,port); if(re < 0) { printf("Error\n %d",re); } return 0; }