crypt: Remove libcrypt support

All the crypt related functions, cryptographic algorithms, and
make requirements are removed,  with only the exception of md5
implementation which is moved to locale folder since it is
required by localedef for integrity protection (libc's
locale-reading code does not check these, but localedef does
generate them).

Besides thec code itself, both internal documentation and the
manual is also adjusted.  This allows to remove both --enable-crypt
and --enable-nss-crypt configure options.

Checked with a build for all affected ABIs.

Co-authored-by: Zack Weinberg <zack@owlfolio.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 0 insertions, 54 deletions

diff --git a/crypt/badsalttest.c b/crypt/badsalttest.c
deleted file mode 100644
index 5e1c65d5c2..0000000000
--- a/crypt/badsalttest.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* Test program for bad DES salt detection in crypt.
-   Copyright (C) 2012-2023 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <array_length.h>
-#include <stddef.h>
-#include <crypt.h>
-
-#include <support/check.h>
-
-static const char *tests[][2] =
-  {
-    { "no salt", "" },
-    { "single char", "/" },
-    { "first char bad", "!x" },
-    { "second char bad", "Z%" },
-    { "both chars bad", ":@" },
-    { "unsupported algorithm", "$2$" },
-    { "unsupported_algorithm", "_1" },
-  };
-
-static int
-do_test (void)
-{
-  struct crypt_data cd;
-
-  /* Mark cd as initialized before first call to crypt_r.  */
-  cd.initialized = 0;
-
-  for (size_t i = 0; i < array_length (tests); i++)
-    {
-      TEST_VERIFY (crypt (tests[i][0], tests[i][1]) == NULL);
-
-      TEST_VERIFY (crypt_r (tests[i][0], tests[i][1], &cd) == NULL);
-    }
-
-  return 0;
-}
-
-#include <support/test-driver.c>