cvs is broken/cygwin-bug in mkdir()?

[Christopher Faylor]

On Fri, Feb 03, 2006 at 11:44:22PM -0500, Igor Peshansky wrote:
>Yes.  Looks like Cygwin is too hasty in assigning the error number: Linux
>only returns ENOENT if the directory doesn't already exist, but Cygwin
>will always return it for a trailing dot argument.  The same with rmdir,
>where it would always return EINVAL, even if the directory doesn't exist
>(in which case Linux returns ENOENT).  FWIW, POSIX only specifies an
>action for rmdir() on a trailing dot (EINVAL).

rmdir doesn't always return EINVAL.

Test program:

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

  int
  main (int argc, char **argv)
  {
    printf ("%d = rmdir (\"%s\")\n", rmdir (*++argv), *argv);
    perror ("rmdir");
  }

Run it:

  bash-3.00$ ./rmdir qwer
  -1 = rmdir ("qwer")
  rmdir: No such file or directory
  bash-3.00$ ./rmdir qwer/.
  -1 = rmdir ("qwer/.")
  rmdir: Invalid argument

cgf

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