socket programming -- operation now in progress

[Tim]

I am testing a very simple socket program. It functions, but there's
still a nagging problem.
On connect(), I get an error "Operation now in progress."

The code:

#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

int main()
{
        int sock = socket(PF_INET, SOCK_STREAM, 0);
        struct sockaddr_in time_serv;

        time_serv.sin_family = AF_INET;
        time_serv.sin_port = htons(37);
        inet_aton("129.6.15.28", &time_serv.sin_addr);
        connect(sock, (struct sockaddr*)&time_serv, sizeof(struct sockaddr));
        perror("connect");
        
        int num;
        
        read(sock, &num, 4);
        printf("%x\n", num);
}

Why am I getting this error? It seems especially odd, since the
program actually works. I'm running cygwin on win98se. I tried this
code on a Linux box, and did not receive the error message.

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