Remove 'grp' and merge into 'nss' and 'posix'

The majority of grp routines are entry points for nss functionality.
This commit removes the 'grp' subdirectory and moves all nss-relevant
functionality and all tests to 'nss', and the 'setgroups' stub into
'posix' (alongside the 'getgroups' stub).  References to grp/ are
accordingly changed.  In addition, compat-initgroups.c, a fallback
implementation of initgroups is renamed to initgroups-fallback.c so that
the build system does not confuse it for nss_compat/compat-initgroups.c.

Build time improves very slightly; e.g. down from an average of 45.5s to
44.5s on an 8-thread mobile x86_64 CPU.
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

29 files changed, 0 insertions, 1783 deletions

diff --git a/grp/Makefile b/grp/Makefile
deleted file mode 100644
index 38006fb..0000000
--- a/grp/Makefile
+++ /dev/null
@@ -1,70 +0,0 @@
-# Copyright (C) 1991-2023 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/>.
-
-#
-#	Sub-makefile for grp portion of the library.
-#
-subdir	:= grp
-
-include ../Makeconfig
-
-headers := grp.h
-
-routines := fgetgrent initgroups setgroups \
-	    getgrent getgrgid getgrnam putgrent \
-	    getgrent_r getgrgid_r getgrnam_r fgetgrent_r \
-	    grp-merge
-
-tests := testgrp tst-putgrent
-
-tests-container = \
-	tst-initgroups1 \
-	tst-initgroups2
-
-ifeq (yes,$(build-shared))
-test-srcs :=  tst_fgetgrent
-ifeq ($(run-built-tests),yes)
-tests-special += $(objpfx)tst_fgetgrent.out
-endif
-endif
-
-
-include ../Rules
-
-ifeq ($(have-thread-library),yes)
-
-CFLAGS-getgrgid_r.c += -fexceptions
-CFLAGS-getgrnam_r.c += -fexceptions
-CFLAGS-getgrent_r.c += -fexceptions
-CFLAGS-getgrent.c += -fexceptions
-CFLAGS-fgetgrent.c += -fexceptions
-CFLAGS-fgetgrent_r.c += -fexceptions $(libio-mtsafe)
-CFLAGS-putgrent.c += -fexceptions $(libio-mtsafe)
-CFLAGS-initgroups.c += -fexceptions
-CFLAGS-getgrgid.c += -fexceptions
-
-endif
-
-ifeq ($(run-built-tests),yes)
-# tst_fgetgrent currently only works with shared libraries
-ifeq (yes,$(build-shared))
-$(objpfx)tst_fgetgrent.out: tst_fgetgrent.sh $(objpfx)tst_fgetgrent
-	$(SHELL) $< $(common-objpfx) '$(test-program-prefix)'; \
-	$(evaluate-test)
-
-endif
-endif
diff --git a/grp/Versions b/grp/Versions
deleted file mode 100644
index 096caa4..0000000
--- a/grp/Versions
+++ /dev/null
@@ -1,34 +0,0 @@
-libc {
-  GLIBC_2.0 {
-    # e*
-    endgrent;
-
-    # f*
-    fgetgrent; fgetgrent_r;
-
-    # g*
-    getgrent; getgrent_r; getgrgid; getgrgid_r; getgrnam; getgrnam_r;
-    getgroups;
-
-    # i*
-    initgroups;
-
-    # s*
-    setgrent; setgroups;
-  }
-  GLIBC_2.1 {
-    # p*
-    putgrent;
-  }
-  GLIBC_2.1.2 {
-    # g*
-    getgrent_r; getgrgid_r; getgrnam_r;
-  }
-  GLIBC_2.2.4 {
-    # g*
-    getgrouplist;
-  }
-  GLIBC_PRIVATE {
-    __merge_grp; __copy_grp;
-  }
-}
diff --git a/grp/compat-initgroups.c b/grp/compat-initgroups.c
deleted file mode 100644
index 9df9407..0000000
--- a/grp/compat-initgroups.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/* Prototype for the setgrent functions we use here.  */
-typedef enum nss_status (*set_function) (void);
-
-/* Prototype for the endgrent functions we use here.  */
-typedef enum nss_status (*end_function) (void);
-
-/* Prototype for the setgrent functions we use here.  */
-typedef enum nss_status (*get_function) (struct group *, char *,
-					 size_t, int *);
-
-
-static enum nss_status
-compat_call (nss_action_list nip, const char *user, gid_t group, long int *start,
-	     long int *size, gid_t **groupsp, long int limit, int *errnop)
-{
-  struct group grpbuf;
-  enum nss_status status;
-  set_function setgrent_fct;
-  get_function getgrent_fct;
-  end_function endgrent_fct;
-  gid_t *groups = *groupsp;
-
-  getgrent_fct = __nss_lookup_function (nip, "getgrent_r");
-  if (getgrent_fct == NULL)
-    return NSS_STATUS_UNAVAIL;
-
-  setgrent_fct = __nss_lookup_function (nip, "setgrent");
-  if (setgrent_fct)
-    {
-      status = DL_CALL_FCT (setgrent_fct, ());
-      if (status != NSS_STATUS_SUCCESS)
-	return status;
-    }
-
-  endgrent_fct = __nss_lookup_function (nip, "endgrent");
-
-  struct scratch_buffer tmpbuf;
-  scratch_buffer_init (&tmpbuf);
-  enum nss_status result = NSS_STATUS_SUCCESS;
-
-  do
-    {
-      while ((status = DL_CALL_FCT (getgrent_fct,
-				     (&grpbuf, tmpbuf.data, tmpbuf.length,
-				      errnop)),
-	      status == NSS_STATUS_TRYAGAIN)
-	     && *errnop == ERANGE)
-        {
-	  if (!scratch_buffer_grow (&tmpbuf))
-	    {
-	      result = NSS_STATUS_TRYAGAIN;
-	      goto done;
-	    }
-        }
-
-      if (status != NSS_STATUS_SUCCESS)
-        goto done;
-
-      if (grpbuf.gr_gid != group)
-        {
-          char **m;
-
-          for (m = grpbuf.gr_mem; *m != NULL; ++m)
-            if (strcmp (*m, user) == 0)
-              {
-		/* Check whether the group is already on the list.  */
-		long int cnt;
-		for (cnt = 0; cnt < *start; ++cnt)
-		  if (groups[cnt] == grpbuf.gr_gid)
-		    break;
-
-		if (cnt == *start)
-		  {
-		    /* Matches user and not yet on the list.  Insert
-		       this group.  */
-		    if (__glibc_unlikely (*start == *size))
-		      {
-			/* Need a bigger buffer.  */
-			gid_t *newgroups;
-			long int newsize;
-
-			if (limit > 0 && *size == limit)
-			  /* We reached the maximum.  */
-			  goto done;
-
-			if (limit <= 0)
-			  newsize = 2 * *size;
-			else
-			  newsize = MIN (limit, 2 * *size);
-
-			newgroups = realloc (groups,
-					     newsize * sizeof (*groups));
-			if (newgroups == NULL)
-			  goto done;
-			*groupsp = groups = newgroups;
-			*size = newsize;
-		      }
-
-		    groups[*start] = grpbuf.gr_gid;
-		    *start += 1;
-		  }
-
-                break;
-              }
-        }
-    }
-  while (status == NSS_STATUS_SUCCESS);
-
- done:
-  scratch_buffer_free (&tmpbuf);
-
-  if (endgrent_fct)
-    DL_CALL_FCT (endgrent_fct, ());
-
-  return result;
-}
diff --git a/grp/fgetgrent.c b/grp/fgetgrent.c
deleted file mode 100644
index 2e7c7fe..0000000
--- a/grp/fgetgrent.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* Copyright (C) 1991-2023 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 <errno.h>
-#include <grp.h>
-#include <libc-lock.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <set-freeres.h>
-
-
-/* We need to protect the dynamic buffer handling.  */
-__libc_lock_define_initialized (static, lock);
-
-static char *buffer;
-
-/* Read one entry from the given stream.  */
-struct group *
-fgetgrent (FILE *stream)
-{
-  static size_t buffer_size;
-  static struct group resbuf;
-  fpos_t pos;
-  struct group *result;
-  int save;
-
-  if (__builtin_expect (fgetpos (stream, &pos), 0) != 0)
-    return NULL;
-
-  /* Get lock.  */
-  __libc_lock_lock (lock);
-
-  /* Allocate buffer if not yet available.  */
-  if (buffer == NULL)
-    {
-      buffer_size = NSS_BUFLEN_GROUP;
-      buffer = malloc (buffer_size);
-    }
-
-  while (buffer != NULL
-	 && (__fgetgrent_r (stream, &resbuf, buffer, buffer_size, &result)
-	     == ERANGE))
-    {
-      char *new_buf;
-      buffer_size += NSS_BUFLEN_GROUP;
-      new_buf = realloc (buffer, buffer_size);
-      if (__glibc_unlikely (new_buf == NULL))
-	{
-	  /* We are out of memory.  Free the current buffer so that the
-	     process gets a chance for a normal termination.  */
-	  save = errno;
-	  free (buffer);
-	  __set_errno (save);
-	}
-      buffer = new_buf;
-
-      /* Reset the stream.  */
-      if (fsetpos (stream, &pos) != 0)
-	buffer = NULL;
-    }
-
-  if (buffer == NULL)
-    result = NULL;
-
-  /* Release lock.  Preserve error value.  */
-  save = errno;
-  __libc_lock_unlock (lock);
-  __set_errno (save);
-
-  return result;
-}
-
-weak_alias (buffer, __libc_fgetgrent_freemem_ptr)
diff --git a/grp/fgetgrent_r.c b/grp/fgetgrent_r.c
deleted file mode 100644
index 5ce7023..0000000
--- a/grp/fgetgrent_r.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Copyright (C) 1991-2023 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 <ctype.h>
-#include <errno.h>
-#include <grp.h>
-#include <stdio.h>
-
-/* Define a line parsing function using the common code
-   used in the nss_files module.  */
-
-#define STRUCTURE	group
-#define ENTNAME		grent
-struct grent_data {};
-
-#define TRAILING_LIST_MEMBER		gr_mem
-#define TRAILING_LIST_SEPARATOR_P(c)	((c) == ',')
-#include <nss/nss_files/files-parse.c>
-LINE_PARSER
-(,
- STRING_FIELD (result->gr_name, ISCOLON, 0);
- if (line[0] == '\0'
-     && (result->gr_name[0] == '+' || result->gr_name[0] == '-'))
-   {
-     result->gr_passwd = NULL;
-     result->gr_gid = 0;
-   }
- else
-   {
-     STRING_FIELD (result->gr_passwd, ISCOLON, 0);
-     if (result->gr_name[0] == '+' || result->gr_name[0] == '-')
-       INT_FIELD_MAYBE_NULL (result->gr_gid, ISCOLON, 0, 10, , 0)
-     else
-       INT_FIELD (result->gr_gid, ISCOLON, 0, 10,)
-   }
- )
-
-
-/* Read one entry from the given stream.  */
-int
-__fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen,
-	       struct group **result)
-{
-  int ret = __nss_fgetent_r (stream, resbuf, buffer, buflen, parse_line);
-  if (ret == 0)
-    *result = resbuf;
-  else
-    *result = NULL;
-  return ret;
-}
-weak_alias (__fgetgrent_r, fgetgrent_r)
diff --git a/grp/getgrent.c b/grp/getgrent.c
deleted file mode 100644
index 6e09987..0000000
--- a/grp/getgrent.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright (C) 1996-2023 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 <grp.h>
-
-
-#define LOOKUP_TYPE	struct group
-#define SETFUNC_NAME	setgrent
-#define	GETFUNC_NAME	getgrent
-#define	ENDFUNC_NAME	endgrent
-#define DATABASE_NAME	group
-#define BUFLEN		NSS_BUFLEN_GROUP
-
-#include "../nss/getXXent.c"
diff --git a/grp/getgrent_r.c b/grp/getgrent_r.c
deleted file mode 100644
index ea3d0e8..0000000
--- a/grp/getgrent_r.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright (C) 1996-2023 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 <grp.h>
-
-
-#define LOOKUP_TYPE	struct group
-#define SETFUNC_NAME	setgrent
-#define	GETFUNC_NAME	getgrent
-#define	ENDFUNC_NAME	endgrent
-#define DATABASE_NAME	group
-#define BUFLEN		NSS_BUFLEN_GROUP
-
-#include "../nss/getXXent_r.c"
diff --git a/grp/getgrgid.c b/grp/getgrgid.c
deleted file mode 100644
index db50f8f..0000000
--- a/grp/getgrgid.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright (C) 1996-2023 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 <grp.h>
-
-
-#define LOOKUP_TYPE	struct group
-#define FUNCTION_NAME	getgrgid
-#define DATABASE_NAME	group
-#define ADD_PARAMS	gid_t gid
-#define ADD_VARIABLES	gid
-#define BUFLEN		NSS_BUFLEN_GROUP
-
-#include "../nss/getXXbyYY.c"
diff --git a/grp/getgrgid_r.c b/grp/getgrgid_r.c
deleted file mode 100644
index dab5f85..0000000
--- a/grp/getgrgid_r.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 1996-2023 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 <grp.h>
-
-#include <grp-merge.h>
-
-#define LOOKUP_TYPE	struct group
-#define FUNCTION_NAME	getgrgid
-#define DATABASE_NAME	group
-#define ADD_PARAMS	gid_t gid
-#define ADD_VARIABLES	gid
-#define BUFLEN		NSS_BUFLEN_GROUP
-#define DEEPCOPY_FN	__copy_grp
-#define MERGE_FN	__merge_grp
-
-#include <nss/getXXbyYY_r.c>
diff --git a/grp/getgrnam.c b/grp/getgrnam.c
deleted file mode 100644
index 98d637b..0000000
--- a/grp/getgrnam.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright (C) 1996-2023 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 <grp.h>
-
-
-#define LOOKUP_TYPE	struct group
-#define FUNCTION_NAME	getgrnam
-#define DATABASE_NAME	group
-#define ADD_PARAMS	const char *name
-#define ADD_VARIABLES	name
-#define BUFLEN		NSS_BUFLEN_GROUP
-
-#include "../nss/getXXbyYY.c"
diff --git a/grp/getgrnam_r.c b/grp/getgrnam_r.c
deleted file mode 100644
index ed5649c..0000000
--- a/grp/getgrnam_r.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 1996-2023 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 <grp.h>
-
-#include <grp-merge.h>
-
-#define LOOKUP_TYPE	struct group
-#define FUNCTION_NAME	getgrnam
-#define DATABASE_NAME	group
-#define ADD_PARAMS	const char *name
-#define ADD_VARIABLES	name
-
-#define DEEPCOPY_FN	__copy_grp
-#define MERGE_FN	__merge_grp
-
-#include <nss/getXXbyYY_r.c>
diff --git a/grp/grp-merge.c b/grp/grp-merge.c
deleted file mode 100644
index 991abf0..0000000
--- a/grp/grp-merge.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/* Group merging implementation.
-   Copyright (C) 2016-2023 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 <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <grp.h>
-#include <grp-merge.h>
-
-#define BUFCHECK(size)			\
-  ({					\
-    do					\
-      {					\
-	if (c + (size) > buflen)	\
-          {				\
-	    free (members);		\
-	    return ERANGE;		\
-	  }				\
-      }					\
-    while (0);				\
-  })
-
-int
-__copy_grp (const struct group srcgrp, const size_t buflen,
-	    struct group *destgrp, char *destbuf, char **endptr)
-{
-  size_t i;
-  size_t c = 0;
-  size_t len;
-  size_t memcount;
-  char **members = NULL;
-
-  /* Copy the GID.  */
-  destgrp->gr_gid = srcgrp.gr_gid;
-
-  /* Copy the name.  */
-  len = strlen (srcgrp.gr_name) + 1;
-  BUFCHECK (len);
-  memcpy (&destbuf[c], srcgrp.gr_name, len);
-  destgrp->gr_name = &destbuf[c];
-  c += len;
-
-  /* Copy the password.  */
-  len = strlen (srcgrp.gr_passwd) + 1;
-  BUFCHECK (len);
-  memcpy (&destbuf[c], srcgrp.gr_passwd, len);
-  destgrp->gr_passwd = &destbuf[c];
-  c += len;
-
-  /* Count all of the members.  */
-  for (memcount = 0; srcgrp.gr_mem[memcount]; memcount++)
-    ;
-
-  /* Allocate a temporary holding area for the pointers to the member
-     contents, including space for a NULL-terminator.  */
-  members = malloc (sizeof (char *) * (memcount + 1));
-  if (members == NULL)
-    return ENOMEM;
-
-  /* Copy all of the group members to destbuf and add a pointer to each of
-     them into the 'members' array.  */
-  for (i = 0; srcgrp.gr_mem[i]; i++)
-    {
-      len = strlen (srcgrp.gr_mem[i]) + 1;
-      BUFCHECK (len);
-      memcpy (&destbuf[c], srcgrp.gr_mem[i], len);
-      members[i] = &destbuf[c];
-      c += len;
-    }
-  members[i] = NULL;
-
-  /* Align for pointers.  We can't simply align C because we need to
-     align destbuf[c].  */
-  if ((((uintptr_t)destbuf + c) & (__alignof__(char **) - 1)) != 0)
-    {
-      uintptr_t mis_align = ((uintptr_t)destbuf + c) & (__alignof__(char **) - 1);
-      c += __alignof__(char **) - mis_align;
-    }
-
-  /* Copy the pointers from the members array into the buffer and assign them
-     to the gr_mem member of destgrp.  */
-  destgrp->gr_mem = (char **) &destbuf[c];
-  len = sizeof (char *) * (memcount + 1);
-  BUFCHECK (len);
-  memcpy (&destbuf[c], members, len);
-  c += len;
-  free (members);
-  members = NULL;
-
-  /* Save the count of members at the end.  */
-  BUFCHECK (sizeof (size_t));
-  memcpy (&destbuf[c], &memcount, sizeof (size_t));
-  c += sizeof (size_t);
-
-  if (endptr)
-    *endptr = destbuf + c;
-  return 0;
-}
-libc_hidden_def (__copy_grp)
-
-/* Check that the name, GID and passwd fields match, then
-   copy in the gr_mem array.  */
-int
-__merge_grp (struct group *savedgrp, char *savedbuf, char *savedend,
-	     size_t buflen, struct group *mergegrp, char *mergebuf)
-{
-  size_t c, i, len;
-  size_t savedmemcount;
-  size_t memcount;
-  size_t membersize;
-  char **members = NULL;
-
-  /* We only support merging members of groups with identical names and
-     GID values. If we hit this case, we need to overwrite the current
-     buffer with the saved one (which is functionally equivalent to
-     treating the new lookup as NSS_STATUS_NOTFOUND).  */
-  if (mergegrp->gr_gid != savedgrp->gr_gid
-      || strcmp (mergegrp->gr_name, savedgrp->gr_name))
-    return __copy_grp (*savedgrp, buflen, mergegrp, mergebuf, NULL);
-
-  /* Get the count of group members from the last sizeof (size_t) bytes in the
-     mergegrp buffer.  */
-  savedmemcount = *(size_t *) (savedend - sizeof (size_t));
-
-  /* Get the count of new members to add.  */
-  for (memcount = 0; mergegrp->gr_mem[memcount]; memcount++)
-    ;
-
-  /* Create a temporary array to hold the pointers to the member values from
-     both the saved and merge groups.  */
-  membersize = savedmemcount + memcount + 1;
-  members = malloc (sizeof (char *) * membersize);
-  if (members == NULL)
-    return ENOMEM;
-
-  /* Copy in the existing member pointers from the saved group
-     Note: this is not NULL-terminated yet.  */
-  memcpy (members, savedgrp->gr_mem, sizeof (char *) * savedmemcount);
-
-  /* Back up into the savedbuf until we get back to the NULL-terminator of the
-     group member list. (This means walking back savedmemcount + 1 (char *) pointers
-     and the member count value.
-     The value of c is going to be the used length of the buffer backed up by
-     the member count and further backed up by the size of the pointers.  */
-  c = savedend - savedbuf
-      - sizeof (size_t)
-      - sizeof (char *) * (savedmemcount + 1);
-
-  /* Add all the new group members, overwriting the old NULL-terminator while
-     adding the new pointers to the temporary array.  */
-  for (i = 0; mergegrp->gr_mem[i]; i++)
-    {
-      len = strlen (mergegrp->gr_mem[i]) + 1;
-      BUFCHECK (len);
-      memcpy (&savedbuf[c], mergegrp->gr_mem[i], len);
-      members[savedmemcount + i] = &savedbuf[c];
-      c += len;
-    }
-  /* Add the NULL-terminator.  */
-  members[savedmemcount + memcount] = NULL;
-
-  /* Align for pointers.  We can't simply align C because we need to
-     align savedbuf[c].  */
-  if ((((uintptr_t)savedbuf + c) & (__alignof__(char **) - 1)) != 0)
-    {
-      uintptr_t mis_align = ((uintptr_t)savedbuf + c) & (__alignof__(char **) - 1);
-      c += __alignof__(char **) - mis_align;
-    }
-
-  /* Copy the member array back into the buffer after the member list and free
-     the member array.  */
-  savedgrp->gr_mem = (char **) &savedbuf[c];
-  len = sizeof (char *) * membersize;
-  BUFCHECK (len);
-  memcpy (&savedbuf[c], members, len);
-  c += len;
-
-  free (members);
-  members = NULL;
-
-  /* Finally, copy the results back into mergebuf, since that's the buffer
-     that we were provided by the caller.  */
-  return __copy_grp (*savedgrp, buflen, mergegrp, mergebuf, NULL);
-}
-libc_hidden_def (__merge_grp)
diff --git a/grp/grp-merge.h b/grp/grp-merge.h
deleted file mode 100644
index 9e1f75c..0000000
--- a/grp/grp-merge.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Group merging implementation.
-   Copyright (C) 2016-2023 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/>.  */
-
-#ifndef _GRP_MERGE_H
-#define _GRP_MERGE_H 1
-
-#include <grp.h>
-
-/* Duplicate a grp struct (and its members). When no longer needed, the
-   calling function must free(newbuf).  */
-int
-__copy_grp (const struct group srcgrp, const size_t buflen,
-	    struct group *destgrp, char *destbuf, char **endptr);
-
-/* Merge the member lists of two grp structs together.  */
-int
-__merge_grp (struct group *savedgrp, char *savedbuf, char *savedend,
-	     size_t buflen, struct group *mergegrp, char *mergebuf);
-
-#endif /* _GRP_MERGE_H */
diff --git a/grp/grp.h b/grp/grp.h
deleted file mode 100644
index c889647..0000000
--- a/grp/grp.h
+++ /dev/null
@@ -1,207 +0,0 @@
-/* Copyright (C) 1991-2023 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/>.  */
-
-/*
- *	POSIX Standard: 9.2.1 Group Database Access	<grp.h>
- */
-
-#ifndef	_GRP_H
-#define	_GRP_H	1
-
-#include <features.h>
-
-__BEGIN_DECLS
-
-#include <bits/types.h>
-
-#define __need_size_t
-#include <stddef.h>
-
-
-/* For the Single Unix specification we must define this type here.  */
-#if (defined __USE_XOPEN || defined __USE_XOPEN2K) && !defined __gid_t_defined
-typedef __gid_t gid_t;
-# define __gid_t_defined
-#endif
-
-/* The group structure.	 */
-struct group
-  {
-    char *gr_name;		/* Group name.	*/
-    char *gr_passwd;		/* Password.	*/
-    __gid_t gr_gid;		/* Group ID.	*/
-    char **gr_mem;		/* Member list.	*/
-  };
-
-
-#ifdef __USE_MISC
-# include <bits/types/FILE.h>
-#endif
-
-
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
-/* Rewind the group-file stream.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern void setgrent (void);
-
-/* Close the group-file stream.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern void endgrent (void);
-
-/* Read an entry from the group-file stream, opening it if necessary.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern struct group *getgrent (void);
-#endif
-
-#ifdef	__USE_MISC
-/* Read a group entry from STREAM.
-
-   This function is not part of POSIX and therefore no official
-   cancellation point.  But due to similarity with an POSIX interface
-   or due to the implementation it is a cancellation point and
-   therefore not marked with __THROW.  */
-extern struct group *fgetgrent (FILE *__stream);
-#endif
-
-#ifdef __USE_GNU
-/* Write the given entry onto the given stream.
-
-   This function is not part of POSIX and therefore no official
-   cancellation point.  But due to similarity with an POSIX interface
-   or due to the implementation it is a cancellation point and
-   therefore not marked with __THROW.  */
-extern int putgrent (const struct group *__restrict __p,
-		     FILE *__restrict __f);
-#endif
-
-/* Search for an entry with a matching group ID.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern struct group *getgrgid (__gid_t __gid);
-
-/* Search for an entry with a matching group name.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern struct group *getgrnam (const char *__name);
-
-#ifdef __USE_POSIX
-
-# ifdef __USE_MISC
-/* Reasonable value for the buffer sized used in the reentrant
-   functions below.  But better use `sysconf'.  */
-#  define NSS_BUFLEN_GROUP	1024
-# endif
-
-/* Reentrant versions of some of the functions above.
-
-   PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
-   The interface may change in later versions of this library.  But
-   the interface is designed following the principals used for the
-   other reentrant functions so the chances are good this is what the
-   POSIX people would choose.
-
-   This function is not part of POSIX and therefore no official
-   cancellation point.  But due to similarity with an POSIX interface
-   or due to the implementation it is a cancellation point and
-   therefore not marked with __THROW.  */
-
-# ifdef __USE_GNU
-extern int getgrent_r (struct group *__restrict __resultbuf,
-		       char *__restrict __buffer, size_t __buflen,
-		       struct group **__restrict __result)
-	__attr_access ((__write_only__, 2, 3));
-# endif
-
-/* Search for an entry with a matching group ID.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern int getgrgid_r (__gid_t __gid, struct group *__restrict __resultbuf,
-		       char *__restrict __buffer, size_t __buflen,
-		       struct group **__restrict __result)
-	__attr_access ((__write_only__, 3, 4));
-
-/* Search for an entry with a matching group name.
-
-   This function is a possible cancellation point and therefore not
-   marked with __THROW.  */
-extern int getgrnam_r (const char *__restrict __name,
-		       struct group *__restrict __resultbuf,
-		       char *__restrict __buffer, size_t __buflen,
-		       struct group **__restrict __result)
-	__attr_access ((__write_only__, 3, 4));
-
-# ifdef	__USE_MISC
-/* Read a group entry from STREAM.  This function is not standardized
-   an probably never will.
-
-   This function is not part of POSIX and therefore no official
-   cancellation point.  But due to similarity with an POSIX interface
-   or due to the implementation it is a cancellation point and
-   therefore not marked with __THROW.  */
-extern int fgetgrent_r (FILE *__restrict __stream,
-			struct group *__restrict __resultbuf,
-			char *__restrict __buffer, size_t __buflen,
-			struct group **__restrict __result)
-	__attr_access ((__write_only__, 3, 4));
-# endif
-
-#endif	/* POSIX or reentrant */
-
-
-#ifdef	__USE_MISC
-
-# define __need_size_t
-# include <stddef.h>
-
-/* Set the group set for the current user to GROUPS (N of them).  */
-extern int setgroups (size_t __n, const __gid_t *__groups) __THROW;
-
-/* Store at most *NGROUPS members of the group set for USER into
-   *GROUPS.  Also include GROUP.  The actual number of groups found is
-   returned in *NGROUPS.  Return -1 if the if *NGROUPS is too small.
-
-   This function is not part of POSIX and therefore no official
-   cancellation point.  But due to similarity with an POSIX interface
-   or due to the implementation it is a cancellation point and
-   therefore not marked with __THROW.  */
-extern int getgrouplist (const char *__user, __gid_t __group,
-			 __gid_t *__groups, int *__ngroups);
-
-/* Initialize the group set for the current user
-   by reading the group database and using all groups
-   of which USER is a member.  Also include GROUP.
-
-   This function is not part of POSIX and therefore no official
-   cancellation point.  But due to similarity with an POSIX interface
-   or due to the implementation it is a cancellation point and
-   therefore not marked with __THROW.  */
-extern int initgroups (const char *__user, __gid_t __group);
-
-#endif /* Use misc.  */
-
-__END_DECLS
-
-#endif /* grp.h  */
diff --git a/grp/initgroups.c b/grp/initgroups.c
deleted file mode 100644
index 2ebd623..0000000
--- a/grp/initgroups.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/* Copyright (C) 1989, 1991-2023 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 <assert.h>
-#include <errno.h>
-#include <grp.h>
-#include <limits.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <nsswitch.h>
-#include <scratch_buffer.h>
-#include <config.h>
-
-#include "../nscd/nscd-client.h"
-#include "../nscd/nscd_proto.h"
-
-/* Type of the lookup function.  */
-typedef enum nss_status (*initgroups_dyn_function) (const char *, gid_t,
-						    long int *, long int *,
-						    gid_t **, long int, int *);
-
-static bool use_initgroups_entry;
-
-
-#include "compat-initgroups.c"
-
-
-static int
-internal_getgrouplist (const char *user, gid_t group, long int *size,
-		       gid_t **groupsp, long int limit)
-{
-#ifdef USE_NSCD
-  if (__nss_not_use_nscd_group > 0
-      && ++__nss_not_use_nscd_group > NSS_NSCD_RETRY)
-    __nss_not_use_nscd_group = 0;
-  if (!__nss_not_use_nscd_group
-      && !__nss_database_custom[NSS_DBSIDX_group])
-    {
-      int n = __nscd_getgrouplist (user, group, size, groupsp, limit);
-      if (n >= 0)
-	return n;
-
-      /* nscd is not usable.  */
-      __nss_not_use_nscd_group = 1;
-    }
-#endif
-
-  enum nss_status status = NSS_STATUS_UNAVAIL;
-
-  /* Never store more than the starting *SIZE number of elements.  */
-  assert (*size > 0);
-  (*groupsp)[0] = group;
-  /* Start is one, because we have the first group as parameter.  */
-  long int start = 1;
-
-  nss_action_list nip;
-
-  if (__nss_database_get (nss_database_initgroups, &nip)
-      && nip != NULL)
-    {
-      use_initgroups_entry = true;
-    }
-  else if (__nss_database_get (nss_database_group, &nip)
-	   && nip != NULL)
-    {
-      use_initgroups_entry = false;
-    }
-  else
-    {
-      nip = __nss_action_parse ("files");
-      use_initgroups_entry = false;
-    }
-
-  while (nip && nip->module)
-    {
-      long int prev_start = start;
-
-      initgroups_dyn_function fct = __nss_lookup_function (nip,
-							   "initgroups_dyn");
-      if (fct == NULL)
-	status = compat_call (nip, user, group, &start, size, groupsp,
-			      limit, &errno);
-      else
-	status = DL_CALL_FCT (fct, (user, group, &start, size, groupsp,
-				    limit, &errno));
-
-      /* Remove duplicates.  */
-      long int cnt = prev_start;
-      while (cnt < start)
-	{
-	  long int inner;
-	  for (inner = 0; inner < prev_start; ++inner)
-	    if ((*groupsp)[inner] == (*groupsp)[cnt])
-	      break;
-
-	  if (inner < prev_start)
-	    (*groupsp)[cnt] = (*groupsp)[--start];
-	  else
-	    ++cnt;
-	}
-
-      /* This is really only for debugging.  */
-      if (NSS_STATUS_TRYAGAIN > status || status > NSS_STATUS_RETURN)
-	__libc_fatal ("Illegal status in internal_getgrouplist.\n");
-
-      /* For compatibility reason we will continue to look for more
-	 entries using the next service even though data has already
-	 been found if the nsswitch.conf file contained only a 'groups'
-	 line and no 'initgroups' line.  If the latter is available
-	 we always respect the status.  This means that the default
-	 for successful lookups is to return.  */
-      if ((use_initgroups_entry || status != NSS_STATUS_SUCCESS)
-	  && nss_next_action (nip, status) == NSS_ACTION_RETURN)
-	 break;
-
-      nip++;
-    }
-
-  return start;
-}
-
-/* Store at most *NGROUPS members of the group set for USER into
-   *GROUPS.  Also include GROUP.  The actual number of groups found is
-   returned in *NGROUPS.  Return -1 if the if *NGROUPS is too small.  */
-int
-getgrouplist (const char *user, gid_t group, gid_t *groups, int *ngroups)
-{
-  long int size = MAX (1, *ngroups);
-
-  gid_t *newgroups = (gid_t *) malloc (size * sizeof (gid_t));
-  if (__glibc_unlikely (newgroups == NULL))
-    /* No more memory.  */
-    // XXX This is wrong.  The user provided memory, we have to use
-    // XXX it.  The internal functions must be called with the user
-    // XXX provided buffer and not try to increase the size if it is
-    // XXX too small.  For initgroups a flag could say: increase size.
-    return -1;
-
-  int total = internal_getgrouplist (user, group, &size, &newgroups, -1);
-
-  memcpy (groups, newgroups, MIN (*ngroups, total) * sizeof (gid_t));
-
-  free (newgroups);
-
-  int retval = total > *ngroups ? -1 : total;
-  *ngroups = total;
-
-  return retval;
-}
-
-nss_interface_function (getgrouplist)
-
-/* Initialize the group set for the current user
-   by reading the group database and using all groups
-   of which USER is a member.  Also include GROUP.  */
-int
-initgroups (const char *user, gid_t group)
-{
-#if defined NGROUPS_MAX && NGROUPS_MAX == 0
-
-  /* No extra groups allowed.  */
-  return 0;
-
-#else
-
-  long int size;
-  gid_t *groups;
-  int ngroups;
-  int result;
-
- /* We always use sysconf even if NGROUPS_MAX is defined.  That way, the
-     limit can be raised in the kernel configuration without having to
-     recompile libc.  */
-  long int limit = __sysconf (_SC_NGROUPS_MAX);
-
-  if (limit > 0)
-    /* We limit the size of the initially allocated array.  */
-    size = MIN (limit, 64);
-  else
-    /* No fixed limit on groups.  Pick a starting buffer size.  */
-    size = 16;
-
-  groups = (gid_t *) malloc (size * sizeof (gid_t));
-  if (__glibc_unlikely (groups == NULL))
-    /* No more memory.  */
-    return -1;
-
-  ngroups = internal_getgrouplist (user, group, &size, &groups, limit);
-
-  /* Try to set the maximum number of groups the kernel can handle.  */
-  do
-    result = setgroups (ngroups, groups);
-  while (result == -1 && errno == EINVAL && --ngroups > 0);
-
-  free (groups);
-
-  return result;
-#endif
-}
-
-nss_interface_function (initgroups)
diff --git a/grp/putgrent.c b/grp/putgrent.c
deleted file mode 100644
index 93caea5..0000000
--- a/grp/putgrent.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Copyright (C) 1991-2023 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 <errno.h>
-#include <nss.h>
-#include <stdio.h>
-#include <string.h>
-#include <grp.h>
-
-#define flockfile(s) _IO_flockfile (s)
-#define funlockfile(s) _IO_funlockfile (s)
-
-#define _S(x)	x ? x : ""
-
-/* Write an entry to the given stream.
-   This must know the format of the group file.  */
-int
-putgrent (const struct group *gr, FILE *stream)
-{
-  int retval;
-
-  if (__glibc_unlikely (gr == NULL) || __glibc_unlikely (stream == NULL)
-      || gr->gr_name == NULL || !__nss_valid_field (gr->gr_name)
-      || !__nss_valid_field (gr->gr_passwd)
-      || !__nss_valid_list_field (gr->gr_mem))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  flockfile (stream);
-
-  if (gr->gr_name[0] == '+' || gr->gr_name[0] == '-')
-    retval = fprintf (stream, "%s:%s::",
-		      gr->gr_name, _S (gr->gr_passwd));
-  else
-    retval = fprintf (stream, "%s:%s:%lu:",
-		      gr->gr_name, _S (gr->gr_passwd),
-		      (unsigned long int) gr->gr_gid);
-  if (__builtin_expect (retval, 0) < 0)
-    {
-      funlockfile (stream);
-      return -1;
-    }
-
-  if (gr->gr_mem != NULL)
-    {
-      for (size_t i = 0; gr->gr_mem[i] != NULL; i++)
-	if (fprintf (stream, i == 0 ? "%s" : ",%s", gr->gr_mem[i]) < 0)
-	  {
-	    /* What else can we do?  */
-	    funlockfile (stream);
-	    return -1;
-	  }
-    }
-
-  retval = fputc_unlocked ('\n', stream);
-
-  funlockfile (stream);
-
-  return retval < 0 ? -1 : 0;
-}
diff --git a/grp/setgroups.c b/grp/setgroups.c
deleted file mode 100644
index d988866..0000000
--- a/grp/setgroups.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 1991-2023 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 <errno.h>
-#include <sys/types.h>
-#include <grp.h>
-
-/* Set the group set for the current user to GROUPS (N of them).  */
-int
-setgroups (size_t n, const gid_t *groups)
-{
-  __set_errno (ENOSYS);
-  return -1;
-}
-libc_hidden_def (setgroups)
-
-stub_warning (setgroups)
diff --git a/grp/testgrp.c b/grp/testgrp.c
deleted file mode 100644
index 892cfaa..0000000
--- a/grp/testgrp.c
+++ /dev/null
@@ -1,41 +0,0 @@
-#include <grp.h>
-#include <pwd.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-int
-main (int argc, char *argv[])
-{
-  uid_t me;
-  struct passwd *my_passwd;
-  struct group *my_group = NULL;
-  char **members;
-
-  me = getuid ();
-  my_passwd = getpwuid (me);
-  if (my_passwd == NULL)
-    printf ("Cannot find user entry for UID %d\n", me);
-  else
-    {
-      printf ("My login name is %s.\n", my_passwd->pw_name);
-      printf ("My uid is %d.\n", (int)(my_passwd->pw_uid));
-      printf ("My home directory is %s.\n", my_passwd->pw_dir);
-      printf ("My default shell is %s.\n", my_passwd->pw_shell);
-
-      my_group = getgrgid (my_passwd->pw_gid);
-      if (my_group == NULL)
-	printf ("No data for group %d found\n", my_passwd->pw_gid);
-      else
-	{
-	  printf ("My default group is %s (%d).\n",
-		  my_group->gr_name, (int)(my_passwd->pw_gid));
-	  printf ("The members of this group are:\n");
-	  for (members = my_group->gr_mem; *members != NULL; ++members)
-	    printf ("  %s\n", *members);
-	}
-    }
-
-  return my_passwd && my_group ? EXIT_SUCCESS : EXIT_FAILURE;
-}
diff --git a/grp/tst-initgroups1.c b/grp/tst-initgroups1.c
deleted file mode 100644
index 3f12388..0000000
--- a/grp/tst-initgroups1.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/* Test that initgroups works.
-   Copyright (C) 2020-2023 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 <nss.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <errno.h>
-#include <unistd.h>
-#include <grp.h>
-
-#include <support/support.h>
-#include <support/check.h>
-
-/* Test that initgroups includes secondary groups.
-   https://bugzilla.redhat.com/show_bug.cgi?id=1906066  */
-
-/* This version uses the wrapper around the groups module.  */
-
-#define EXPECTED_N_GROUPS 4
-static gid_t expected_groups[] =
-  { 20, 30, 50, 51 };
-
-static int
-do_test (void)
-{
-  gid_t mygroups [50];
-  int i, n;
-
-  n = 50;
-  getgrouplist ("dj", 20, mygroups, &n);
-
-  TEST_COMPARE (n, EXPECTED_N_GROUPS);
-  for (i=0; i<n; i++)
-    TEST_COMPARE (mygroups[i], expected_groups[i]);
-
-  return 0;
-}
-
-#include <support/test-driver.c>
diff --git a/grp/tst-initgroups1.root/etc/group b/grp/tst-initgroups1.root/etc/group
deleted file mode 100644
index 0dac1cc..0000000
--- a/grp/tst-initgroups1.root/etc/group
+++ /dev/null
@@ -1,7 +0,0 @@
-abc:x:10:
-def:x:20:
-ghi:x:30:dj
-jkl:x:40:
-m:x:50:not,dj
-n:x:51:dj,not
-np:x:60:djx
diff --git a/grp/tst-initgroups1.root/etc/nsswitch.conf b/grp/tst-initgroups1.root/etc/nsswitch.conf
deleted file mode 100644
index 8d0a1ae..0000000
--- a/grp/tst-initgroups1.root/etc/nsswitch.conf
+++ /dev/null
@@ -1 +0,0 @@
-group : files 
diff --git a/grp/tst-initgroups1.root/etc/passwd b/grp/tst-initgroups1.root/etc/passwd
deleted file mode 100644
index 5e3a2a5..0000000
--- a/grp/tst-initgroups1.root/etc/passwd
+++ /dev/null
@@ -1 +0,0 @@
-dj:x:84:20:DJ:/:/bin/sh
diff --git a/grp/tst-initgroups2.c b/grp/tst-initgroups2.c
deleted file mode 100644
index 4e8b8c5..0000000
--- a/grp/tst-initgroups2.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Test that initgroups works.
-   Copyright (C) 2020-2023 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 "tst-initgroups1.c"
-
-/* This version uses the initgroups built in to the files module.  */
diff --git a/grp/tst-initgroups2.root/etc/group b/grp/tst-initgroups2.root/etc/group
deleted file mode 100644
index 0dac1cc..0000000
--- a/grp/tst-initgroups2.root/etc/group
+++ /dev/null
@@ -1,7 +0,0 @@
-abc:x:10:
-def:x:20:
-ghi:x:30:dj
-jkl:x:40:
-m:x:50:not,dj
-n:x:51:dj,not
-np:x:60:djx
diff --git a/grp/tst-initgroups2.root/etc/nsswitch.conf b/grp/tst-initgroups2.root/etc/nsswitch.conf
deleted file mode 100644
index c61f362..0000000
--- a/grp/tst-initgroups2.root/etc/nsswitch.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-initgroups : files
-group : notfiles 
diff --git a/grp/tst-initgroups2.root/etc/passwd b/grp/tst-initgroups2.root/etc/passwd
deleted file mode 100644
index 5e3a2a5..0000000
--- a/grp/tst-initgroups2.root/etc/passwd
+++ /dev/null
@@ -1 +0,0 @@
-dj:x:84:20:DJ:/:/bin/sh
diff --git a/grp/tst-putgrent.c b/grp/tst-putgrent.c
deleted file mode 100644
index 79c1486..0000000
--- a/grp/tst-putgrent.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/* Test for processing of invalid group entries.  [BZ #18724]
-   Copyright (C) 2015-2023 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 <errno.h>
-#include <grp.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-static bool errors;
-
-static void
-check (struct group e, const char *expected)
-{
-  char *buf;
-  size_t buf_size;
-  FILE *f = open_memstream (&buf, &buf_size);
-
-  if (f == NULL)
-    {
-      printf ("open_memstream: %m\n");
-      errors = true;
-      return;
-    }
-
-  int ret = putgrent (&e, f);
-
-  if (expected == NULL)
-    {
-      if (ret == -1)
-	{
-	  if (errno != EINVAL)
-	    {
-	      printf ("putgrent: unexpected error code: %m\n");
-	      errors = true;
-	    }
-	}
-      else
-	{
-	  printf ("putgrent: unexpected success (\"%s\", \"%s\")\n",
-		  e.gr_name, e.gr_passwd);
-	  errors = true;
-	}
-    }
-  else
-    {
-      /* Expect success.  */
-      size_t expected_length = strlen (expected);
-      if (ret == 0)
-	{
-	  long written = ftell (f);
-
-	  if (written <= 0 || fflush (f) < 0)
-	    {
-	      printf ("stream error: %m\n");
-	      errors = true;
-	    }
-	  else if (buf[written - 1] != '\n')
-	    {
-	      printf ("FAILED: \"%s\" without newline\n", expected);
-	      errors = true;
-	    }
-	  else if (strncmp (buf, expected, written - 1) != 0
-		   || written - 1 != expected_length)
-	    {
-	      buf[written - 1] = '\0';
-	      printf ("FAILED: \"%s\" (%ld), expected \"%s\" (%zu)\n",
-		      buf, written - 1, expected, expected_length);
-	      errors = true;
-	    }
-	}
-      else
-	{
-	  printf ("FAILED: putgrent (expected \"%s\"): %m\n", expected);
-	  errors = true;
-	}
-    }
-
-  fclose (f);
-  free (buf);
-}
-
-static int
-do_test (void)
-{
-  check ((struct group) {
-      .gr_name = (char *) "root",
-    },
-    "root::0:");
-  check ((struct group) {
-      .gr_name = (char *) "root",
-      .gr_passwd = (char *) "password",
-      .gr_gid = 1234,
-      .gr_mem = (char *[2]) {(char *) "member1", NULL}
-    },
-    "root:password:1234:member1");
-  check ((struct group) {
-      .gr_name = (char *) "root",
-      .gr_passwd = (char *) "password",
-      .gr_gid = 1234,
-      .gr_mem = (char *[3]) {(char *) "member1", (char *) "member2", NULL}
-    },
-    "root:password:1234:member1,member2");
-
-  /* Bad values.  */
-  {
-    static const char *const bad_strings[] = {
-      ":",
-      "\n",
-      ":bad",
-      "\nbad",
-      "b:ad",
-      "b\nad",
-      "bad:",
-      "bad\n",
-      "b:a\nd"
-      ",",
-      "\n,",
-      ":,",
-      ",bad",
-      "b,ad",
-      "bad,",
-      NULL
-    };
-    for (const char *const *bad = bad_strings; *bad != NULL; ++bad)
-      {
-	char *members[]
-	  = {(char *) "first", (char *) *bad, (char *) "last", NULL};
-	if (strpbrk (*bad, ":\n") != NULL)
-	  {
-	    check ((struct group) {
-		.gr_name = (char *) *bad,
-	      }, NULL);
-	    check ((struct group) {
-		.gr_name = (char *) "root",
-		.gr_passwd = (char *) *bad,
-	      }, NULL);
-	  }
-	check ((struct group) {
-	    .gr_name = (char *) "root",
-	    .gr_passwd = (char *) "password",
-	    .gr_mem = members,
-	  }, NULL);
-      }
-  }
-
-  return errors;
-}
-
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"
diff --git a/grp/tst_fgetgrent.c b/grp/tst_fgetgrent.c
deleted file mode 100644
index be41191..0000000
--- a/grp/tst_fgetgrent.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/* Copyright (C) 1999-2023 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 <grp.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-static int errors;
-
-static void
-write_users (FILE *f, int large_pos, int pos)
-{
-  int i;
-
-  if (pos == large_pos)
-    {
-      if (large_pos == 3)
-	fprintf (f, ":three");
-
-      /* we need more than 2048 bytes for proper testing.  */
-      for (i = 0; i < 500; i++)
-	fprintf (f, ",user%03d", i);
-    }
-  fprintf (f, "\n");
-
-}
-
-static void
-write_group (const char *filename, int pos)
-{
-  FILE *f;
-
-  f = fopen (filename, "w");
-  fprintf (f, "one:x:1:one");
-  write_users (f, pos, 1);
-  fprintf (f, "two:x:2:two");
-  write_users (f, pos, 2);
-  fprintf (f, "three:x:3");
-  write_users (f, pos, 3);
-  fclose (f);
-}
-
-static void
-test_entry (const char *name, gid_t gid, struct group *g)
-{
-  if (!g)
-    {
-      printf ("Error: Entry is empty\n");
-      errors++;
-      return;
-    }
-
-  if ((g->gr_gid == gid) && (strcmp (g->gr_name, name) == 0))
-    printf ("Ok: %s: %d\n", g->gr_name, g->gr_gid);
-  else
-    {
-      printf ("Error: %s: %d should be: %s: %d\n", g->gr_name, g->gr_gid,
-	      name, gid);
-      errors++;
-    }
-}
-
-
-static void
-test_fgetgrent (const char *filename)
-{
-  struct group *g;
-  FILE *f;
-
-  f = fopen (filename,"r");
-
-  g = fgetgrent (f);
-  test_entry ("one", 1, g);
-  g = fgetgrent (f);
-  test_entry ("two", 2, g);
-  g = fgetgrent (f);
-  test_entry ("three", 3, g);
-  fclose (f);
-}
-
-
-int
-main (int argc, char *argv[])
-{
-  char file[] = "/tmp/tst_fgetgrent.XXXXXX";
-  int fd = mkstemp (file);
-  if (fd == -1)
-    {
-      printf ("mkstemp failed: %m\n");
-      return 1;
-    }
-  close (fd);
-  int i = 0;
-
-  if (argc > 1)
-    i = atoi (argv[1]);
-  if (i > 3)
-    i = 3;
-  if (i)
-    printf ("Large group is group: %d\n", i);
-  else
-    printf ("Not using a large group\n");
-  write_group (file, i);
-  test_fgetgrent (file);
-
-  remove (file);
-
-  return (errors != 0);
-}
diff --git a/grp/tst_fgetgrent.sh b/grp/tst_fgetgrent.sh
deleted file mode 100644
index 1775a6b..0000000
--- a/grp/tst_fgetgrent.sh
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/bin/sh
-# Copyright (C) 1999-2023 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/>.
-
-set -e
-
-common_objpfx=$1; shift
-test_program_prefix=$1; shift
-
-testout=${common_objpfx}/grp/tst_fgetgrent.out
-
-result=0
-
-${test_program_prefix} \
-${common_objpfx}grp/tst_fgetgrent 0 > ${testout} || result=1
-
-${test_program_prefix} \
-${common_objpfx}grp/tst_fgetgrent 1 >> ${testout} || result=1
-
-${test_program_prefix} \
-${common_objpfx}grp/tst_fgetgrent 2 >> ${testout} || result=1
-
-${test_program_prefix} \
-${common_objpfx}grp/tst_fgetgrent 3 >> ${testout} || result=1
-
-exit $result