Chapter7 ????.zip_Server_TCPIP_zip

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <winsock2.h> #define BUF_SIZE 30 void ErrorHandling(char *message); int main(int argc, char *argv[]) { WSADATA wsaData; SOCKET hServSock, hClntSock; FILE * fp; char buf[BUF_SIZE]; int readCnt; SOCKADDR_IN servAdr, clntAdr; int clntAdrSz; if(argc!=2) { printf("Usage: %s <port>\n", argv[0]); exit(1); } if(WSAStartup(MAKEWORD(2, 2), &wsaData)!=0) ErrorHandling("WSAStartup() error!"); fp=fopen("file_server_win.c", "rb"); hServSock=socket(PF_INET, SOCK_STREAM, 0); memset(&servAdr, 0, sizeof(servAdr)); servAdr.sin_family=AF_INET; servAdr.sin_addr.s_addr=htonl(INADDR_ANY); servAdr.sin_port=htons(atoi(argv[1])); bind(hServSock, (SOCKADDR*)&servAdr, sizeof(servAdr)); listen(hServSock, 5); clntAdrSz=sizeof(clntAdr); hClntSock=accept(hServSock, (SOCKADDR*)&clntAdr, &clntAdrSz); while(1) { readCnt=fread((void*)buf, 1, BUF_SIZE, fp); if(readCnt<BUF_SIZE) { send(hClntSock, (char*)&buf, readCnt, 0); break; } send(hClntSock, (char*)&buf, BUF_SIZE, 0); } shutdown(hClntSock, SD_SEND); recv(hClntSock, (char*)buf, BUF_SIZE, 0); printf("Message from client: %s \n", buf); fclose(fp); closesocket(hClntSock); closesocket(hServSock); WSACleanup(); return 0; } void ErrorHandling(char *message) { fputs(message, stderr); fputc('\n', stderr); exit(1); }