simple web server not working correctly

Hi experts,

I modified some code in order to create a simple webserver for my testing. The problem  is that the server accepts the connection correctly and send the response. But the client cannot read correctly from the socket once he gets the response.
Can you figure out what I'm doing wrong by looking at the code below?

#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include <netinet/in.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdarg.h>
#include <arpa/inet.h>
#include <unistd.h>

#define PORT 80
#define MLEN 1000
#define BUFSIZE 8192

int main(int argc, char *argv [])
{

        int listenfd, connfd;
        int number, message, numbytes;
        int h, i, j;
		socklen_t  alen; 
        int nread;
        struct sockaddr_in servaddr; 
        struct sockaddr_in cliaddr;
        FILE *in_file, *out_file, *fp;
        char buf[8192];



        listenfd = socket(AF_INET, SOCK_STREAM, 0);
        if (listenfd < 0)
                 fprintf(stderr,"listen error") ;

        memset(&servaddr, 0, sizeof(servaddr));
        servaddr.sin_family      = AF_INET;
        servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
        servaddr.sin_port        = htons(PORT);

        if (bind(listenfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) < 0)
                fprintf(stderr,"bind error") ;

		listen(listenfd, 5);


        alen = sizeof(struct sockaddr);

		
		
        while ((connfd = accept(listenfd, (struct sockaddr *) &cliaddr, &alen)) > 0)
        {
		

	        printf("accept one client from %s!\n", inet_ntoa(cliaddr.sin_addr));



			if (fork() == 0)
			{
					close(listenfd);
				printf("reading from socket");
				bzero(buf, BUFSIZE);
				numbytes = read (connfd, buf, BUFSIZE);
				if (numbytes < 0) printf("error reading from socket");
				sleep(1);

				bzero(buf, BUFSIZE);


		 		fp = fopen (argv [1], "r"); // open file stored in server
				if (fp == NULL) {
				        printf("\nfile NOT exist");
				}

				//Sending file
				while(!feof(fp)){

				        numbytes = fread(buf, sizeof(char), sizeof(buf), fp);
				        printf("fread %d bytes, ", numbytes);
				        numbytes = write(connfd, buf, numbytes);
				        printf("Sending %d bytes\n",numbytes);
				}

				fclose (fp);    
				sleep(5);
				close(connfd);
					exit(0);
        		}
			close(connfd);
	}
        	
        return 0;
}

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