#include	"unp.h"

void
dg_cli_connect(FILE*, FILE *, int, const SA *, socklen_t);

int
main(int argc, char **argv)
{
	int					sockfd;
	struct sockaddr_in	servaddr;
        FILE * log = stdout;

	if (argc != 2)
		err_quit("usage: udpcli <IPaddress>");

	bzero(&servaddr, sizeof(servaddr));
	servaddr.sin_family = AF_INET;
	servaddr.sin_port = htons(SERV_PORT);
	Inet_pton(AF_INET, argv[1], &servaddr.sin_addr);

	sockfd = Socket(AF_INET, SOCK_DGRAM, 0);

        fprintf (log,"Calling dg_cli_connect\n");
        fflush(log);
	dg_cli_connect(log,stdin, sockfd, (SA *) &servaddr, sizeof(servaddr));

	exit(0);
}

void
dg_cli_connect(FILE* log, FILE *fp, int sockfd, const SA *pservaddr, socklen_t servlen)
{
	int		n;
	char	sendline[MAXLINE], recvline[MAXLINE + 1];

        fprintf (log,"Before Connect\n");
        fflush (log);
	if ((n=connect(sockfd, (SA *) pservaddr, servlen)) != 0) {
           fprintf (log,"problem with connect with errno %d\n",errno);
           exit(0);
        }
        fprintf (log,"Connect returned successfully with value %d\n",n);
        fflush (log);

	while (Fgets(sendline, MAXLINE, fp) != NULL) {
                fprintf (log,"Sending to server %s\n",sendline);

		if ((n=write(sockfd, sendline, strlen(sendline))) == -1) {
                    fprintf (log,"problem with write with errno %d\n",errno);
                    exit(0);
                }
                fprintf (log,"Write returned successfully with value %d\n",n);

		n = Read(sockfd, recvline, MAXLINE);
                fprintf (log,"read successful from server with value %d\n",n);

		recvline[n] = 0;	/* null terminate */
		Fputs(recvline, stdout);
	}
}