//
// Simple Win32 net functions.
//

#include <winsock2.h>

SOCKET sock;

void NetOpen (char *addr, short port)
{
    struct sockaddr_in sin;
    WSADATA WSAData;
    int n;
    static once = 1;

    WSAStartup(MAKEWORD(1,1), &WSAData);

    if (once) {
        fprintf(stderr, "** Connecting to %s (port %d)\n", addr, port);
        once = 0;
    }

    sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (sock < 0) {
        fprintf(stderr, "socket failed (%ld)\n", h_errno);
        exit(1);
    }

    memset((char *)&sin, 0x0, sizeof sin);
    sin.sin_family = AF_INET;
    sin.sin_addr.s_addr = inet_addr(addr);
    sin.sin_port = htons(port);

    n = connect(sock, (struct sockaddr *)&sin, sizeof sin );
    if (n < 0) {
        fprintf(stderr, "connect failed (%ld)\n", h_errno);
        exit(1);
    }

    return;
}

void NetClose (void)
{
    WSACleanup();

    return;
}

int NetRead (char *buffer, int size)
{
    int n;

    n = recv(sock, buffer, size, 0);
    if (n < 0) {
        fprintf(stderr, "Network read error (%ld)\n", h_errno);
        // exit(1);
    }

    return n;
}

void NetWrite (char *buffer, int size)
{
    int n;

    n = send(sock, buffer, size, 0);
    if (n != size) {
        fprintf(stderr, "Network write error (%ld)\n", h_errno);
        // exit(1);
    }
}