Linux C 웹 서버 관련 문의 드립니다.

void *HttpSock(void *prma)
{
    signal(SIGINT,keycontrol);
    int h_serv_sock;
    int h_clnt_sock;
    int h_clnt_size;
 
    pthread_t http;
 
    struct sockaddr_in h_serv_adr,h_clnt_adr;
 
    HttpSockSet(&h_serv_adr,&h_serv_sock); //소켓 초기화 해주는 부분
    printf("serv sock : %d\n",h_serv_sock);
    printf("serv adr : %d\n",h_serv_adr);
    if(bind(h_serv_sock,(struct sockaddr*)&h_serv_adr,sizeof(h_serv_adr))==-1)
        ErrorHandle("HTTP Bind() Error!");
    else
        SuccessMessage("HTTP Bind() Success!");
 
    if(listen(h_serv_sock,20)==-1)
        ErrorHandle("HTTP listen() Error!");
 
    else
        SuccessMessage("HTTP listen() Success!");
    while(1)
    { 
         h_clnt_size=sizeof(h_clnt_adr);
         int fd = open("/dev/null",O_RDONLY);
         dup2(fd,STDIN_FILENO);
         close(fd);
         if(h_clnt_sock=accept(h_serv_sock,(struct sockaddr*)&h_clnt_adr,&h_clnt_size)==-1)
             ErrorHandle("HTTP Accept Error!");
         else
                SuccessMessage("HTTP Accept Surccess!");
         printf("clnt_sock : %d\n",h_clnt_sock);
         int debug=pthread_create(&http,NULL,HTTP_Read_Write,(void*)&h_clnt_sock);
         if(debug!=0)
              ErrorHandle("Http pthread Error!");
         else
              SuccessMessage("Http pthread Success!");
 
    }
    close(serv_sock);
 
}