#include
#include
#define port 3490 # Define MaxDataSize 1000INT Main (int Argc, char * argv []) {charf [maxdatasize]; int sockfd; int numBytes; struct sockaddr_in thereir_addr;
IF (argc! = 2) {Printf ("USAGE: Client Hostip / N"); exit (1);}
IF ((Sockfd = Socket (AF_INET, SOCK_STREAM, 0) == - 1) {Printf ("socket"); exit (1);
THEIR_ADDR.SIN_FAMILY = AF_INET; THEIR_ADDR.SIN_PORT = HTONS (port); their_addr.sin_addr.s_addr = inet_addr (Argv [1]); MEMSET (& (THEIR_ADDR.SIN_ZERO), '/ 0', 8);
IF (Connect (STRUCKD, STRUCKADDR *) & THEIR_ADDR, SIZEOF (STRUCKADDR)) == - 1) {Printf ("Connect"); Printf ("" The port of this host is: / t open "); EXIT 1); }
IF ((NumBytes = Recv (SockFD, BUF, MaxDataSize-1, 0)) == - 1) {Printf ("RECV");}
BUF [NumBytes] = '/ 0';
Printf ("ReceiveD:% S", BUF); Close (SockFD); Return 0;}
