13 #include <arpa/inet.h>

    13 #include <arpa/inet.h>

    14 

    14 

    15 int connection (char *ip, unsigned short port)

    15 int connection (char *ip, unsigned short port)

    16 {

    16 {

    17     struct hostent *hs;

    17     struct hostent *hs;

    18     struct sockaddr_in sock;

    19     struct sockaddr_in sock;

    19     int sockfd;

    21     int sockfd;

    20 

    22 

    21     memset (&sock, 0, sizeof (sock));

    23     memset (&sock, 0, sizeof (sock));

    22     sock.sin_family = AF_INET;

    24     sock.sin_family = AF_INET;

    23     sock.sin_port = htons (port);

    25     sock.sin_port = htons (port);

    45 }

    47 }

    46 

    48 

    47 int main (int argc, char **argv)

    49 int main (int argc, char **argv)

    48 {

    50 {

    49     char buffer[1024];

    51     char buffer[1024];

    50     int sockfd;

    53     int sockfd;

    51     int num;

    55     int num;

    52 

    56 

    53     if (argc != 3) {

    57     if (argc != 3) {

    54         printf ("Usage: %s <ipaddr> <port>\n", argv[0]);

    58         printf ("Usage: %s <ipaddr> <port>\n", argv[0]);

    55         return EXIT_SUCCESS;

    59         return EXIT_SUCCESS;