Test for possible bug in Torsocks getdent_fix branch

SYS_getdents64.c

#include <dirent.h> 
#include <fcntl.h> 
#include <stdio.h> 
#include <unistd.h> 
#include <stdlib.h> 
#include <sys/stat.h> 
#include <sys/syscall.h>

  #define handle_error(msg) \
do { perror(msg); exit(EXIT_FAILURE); } while (0)

struct linux_dirent64 {
  long d_ino;
  off_t d_off;
  unsigned short d_reclen;
  char d_name[];
};

#define BUF_SIZE 1024

int
main(int argc, char * argv[]) {
  int fd, nread;
  char buf[BUF_SIZE];
  struct linux_dirent64 * d;
  int bpos;
  char d_type;

  fd = open(argc > 1 ? argv[1] : ".", O_RDONLY | O_DIRECTORY);

  nread = syscall(SYS_getdents64, fd, buf, BUF_SIZE);

  exit(EXIT_SUCCESS);
}