read-write-open(O_RDONLY) figer

#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>

int main(){

  char buffer[11];
  int nread=1;
  int fd;
  char * path;
  int i,flag;
  char path1[]="/root/study-dir/linux_program_design/chapter_3/read.c";
  fd = open(path1,O_RDONLY);
  while(nread){
  nread = read(fd,buffer,10);
  i=0,flag=0;
  while(i<10){
     printf("%d\n",buffer[i]);
    if(buffer[i]==10){
      flag=-1;
      break;
    }

    i++;
   }
  if(flag!=-1)
    {
       buffer[10]='\n';
       if (nread == -1)
    write(2,"A read error has occurred\n",26);

  if ((write(1,buffer,nread+1)) != nread+1)
    write(2,"A write error has occurred\n",27);
  printf("%d\n",nread);
    }else{
    if (nread == -1)
    write(2,"A read error has occurred\n",26);

  if ((write(1,buffer,nread)) != nread)
    write(2,"A write error has occurred\n",27);
  printf("%d\n",nread);
  }


  }

  exit(0);
}