Untitled Masterpiece

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h> /* mmap() is defined in this header */
#include <fcntl.h>
#include<string.h>
#include"apue.h"
int main (int argc, char *argv[])
{
 int fdin, fdout;
 char *src, *dst;
 struct stat statbuf;


 /* open the input file */
 if ((fdin = open (argv[1], O_RDONLY)) < 0)
   {printf("can't open %s for reading", argv[1]);return 1;}



 /* find size of input file */
 if (fstat (fdin,&statbuf) < 0)
    {printf("fstat error");return 1;}





 /* mmap the input file */
 if ((src = mmap (0, statbuf.st_size, PROT_READ, MAP_SHARED, fdin, 0))
   == (caddr_t) -1)
   {printf("mmap error for input");return 1;}

  char* beg=src;
  long x;
  char* end=&src[statbuf.st_size-1];
  while(src<end)
  {
        beg=src;
        x = strtol (src,&src,10);
        if(!((x != 0) && ((x & (~x + 1)) == x)))
            fwrite(beg, 1, (int)(src-beg), stdout);
  }
  return 0;
}