Не компилируется простейший сканер портов - C (СИ)

#include <winsock.h>
#include <stdio.h>
#include <stdlib.h>
 
#pragma comment(lib, "ws2_32")
 
int scan(char *ip, u_short port);

main(int argc, char *argv[])
 
{
    int start, end, i;
    char *ip;
    struct servent *srv;
    WSADATA wsd;
    char p_name[10] = " ";
 
    WSAStartup(0x0101, &wsd);
 
    ip = argv[1];
    start = atoi(argv[2]);
    end = atoi(argv[3]);
 
    for(i = start; i <= end; i++)
    {
        srv = getservbyport(htons(i), "tcp");
        (srv == NULL)?strcpy(p_name, "unknw"):strcpy(p_name, srv->s_name);
        if(scan(ip, i))
        {
            printf("%s(%d):\t Open\n", p_name, i);
        }
        else
        {
            printf("%s(%d):\t Close\n", p_name, i);
            continue;
        }
    }
}
 
int scan(char *ip, u_short port)
{
    SOCKET sd;
    WSADATA wsd;
    struct sockaddr_in loc;
    int res = 0;
 
    if(WSAStartup(0x0101, &wsd))
    {
        printf("wsd error\n");
        exit(1);
    }
 
    loc.sin_family  =   AF_INET;
    loc.sin_port    =   htons((u_short *)port);
    loc.sin_addr.s_addr = inet_addr(ip);
 
    sd = socket(AF_INET, SOCK_STREAM, 0);
    
    if(connect(sd, (struct sockaddr *)&loc, sizeof(loc)))
        res = 0;
    else
    {
        res = 1;
    }
closesocket(sd);
return res;
}