#if 0
#
# If executed this file compiles an .so module and prints the suggested
# usage line...
#
/bin/sh << EOS
MODNAME=\`basename "$0" .c\`
(set -x;
 cc -O  -shared -o \$MODNAME.so "$0" \
	-init my_init -hidden_symbol my_init \
	-expect_unresolved '__Arg?'
) 1>&2 &&
echo env _RLD_LIST=`pwd`/\$MODNAME.so:DEFAULT $SHELL
EOS
exit
#endif

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

static int	screwing_tar;
static dev_t	first_device;

void my_init ()
{ extern char **__Argv[];
  extern int    __Argc;

    if (__Argc>1
	&& strstr ((*__Argv)[0],"tar")
	&& strchr ((*__Argv)[1],'c')
       )
	screwing_tar = 1;
}

int lstat (const char *path,struct stat *buf)
{ int ret=__lstat (path,buf);

    if (ret==0 && screwing_tar)
    {	if (first_device==0)
	    first_device = buf->st_dev;
	else if (buf->st_dev != first_device)
	{   errno = ENOENT;
	    return -1;
	}
    }

  return ret;
}