C Program to List all file in the floder

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

void main(int count,char *argv[])
{
  struct find_t q ;
  int a;
  if(count==1)
  argv[1]="*.*";
  a = _dos_findfirst(argv[1],1,&q);
  if(a==0)
  {
     while (!a)
   {
    printf("  %s\n", q.name);
    a = _dos_findnext(&q);
    }
  }
  else
  {
  printf("File not found");
  }
  getch();
}