#include <stdio.h>
#include <stdlib.h>
#include <io.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys\stat.h>
#include <share.h>

extern int errno;

main(argc,argv)
int argc;
char **argv;
{ int   h,more=1   ;

  if (argc < 2)
  { printf("test&lck filename\n");return(0);}

  while(more)
  {
  h = open(argv[1],O_RDWR|O_CREAT,SH_DENYRD,S_IREAD|S_IWRITE) ;
  if (h == -1)
  { if (errno != EACCES)
      { printf("Unable to Open %s...\n",argv[1]);
	return(0) ;
      }
      else printf("File %s Permision denied...\n",argv[1]);
  }
  else  { printf("File %s is locked, RETURN to continue\n",argv[1]);
	  getchar(); close(h) ;more=0;}
  }

  return(0);

}