Remove --enable-obsolete-nsl configure flag

this means that *always* libnsl is only built as shared library for
backward compatibility and the NSS modules libnss_nis and libnss_nisplus
are not built at all, libnsl's headers aren't installed.

This compatibility is kept only for architectures and ABIs that have
been added in or before version 2.28.

Replacement implementations based on TIRPC, which additionally support
IPv6, are available from <https://github.com/thkukuk/>.

This change does not affect libnss_compat which does not depended
on libnsl since 2.27 and thus can be used without NIS.

libnsl code depends on Sun RPC, e.g. on --enable-obsolete-rpc (installed
libnsl headers use installed Sun RPC headers), which will be removed in
the following commit.

1 files changed, 0 insertions, 408 deletions

diff --git a/nis/nss_nisplus/nisplus-pwd.c b/nis/nss_nisplus/nisplus-pwd.c
deleted file mode 100644
index b183460..0000000
--- a/nis/nss_nisplus/nisplus-pwd.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
-
-   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 <atomic.h>
-#include <nss.h>
-#include <errno.h>
-#include <pwd.h>
-#include <string.h>
-#include <libc-lock.h>
-#include <rpcsvc/nis.h>
-
-#include "nss-nisplus.h"
-#include "nisplus-parser.h"
-#include <libnsl.h>
-#include <nis_intern.h>
-#include <nis_xdr.h>
-
-
-__libc_lock_define_initialized (static, lock)
-
-/* Connection information.  */
-static ib_request *ibreq;
-static directory_obj *dir;
-static dir_binding bptr;
-static char *tablepath;
-static char *tableptr;
-/* Cursor.  */
-static netobj cursor;
-
-
-nis_name pwd_tablename_val attribute_hidden;
-size_t pwd_tablename_len attribute_hidden;
-
-enum nss_status
-_nss_pwd_create_tablename (int *errnop)
-{
-  if (pwd_tablename_val == NULL)
-    {
-      const char *local_dir = nis_local_directory ();
-      size_t local_dir_len = strlen (local_dir);
-      static const char prefix[] = "passwd.org_dir.";
-
-      char *p = malloc (sizeof (prefix) + local_dir_len);
-      if (p == NULL)
-	{
-	  *errnop = errno;
-	  return NSS_STATUS_TRYAGAIN;
-	}
-
-      memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1);
-
-      pwd_tablename_len = sizeof (prefix) - 1 + local_dir_len;
-
-      atomic_write_barrier ();
-
-      if (atomic_compare_and_exchange_bool_acq (&pwd_tablename_val, p, NULL))
-	{
-	  /* Another thread already installed the value.  */
-	  free (p);
-	  pwd_tablename_len = strlen (pwd_tablename_val);
-	}
-    }
-
-  return NSS_STATUS_SUCCESS;
-}
-
-
-static void
-internal_nisplus_endpwent (void)
-{
-  __nisbind_destroy (&bptr);
-  memset (&bptr, '\0', sizeof (bptr));
-
-  nis_free_directory (dir);
-  dir = NULL;
-
-  nis_free_request (ibreq);
-  ibreq = NULL;
-
-  xdr_free ((xdrproc_t) xdr_netobj, (char *) &cursor);
-  memset (&cursor, '\0', sizeof (cursor));
-
-  free (tablepath);
-  tableptr = tablepath = NULL;
-}
-
-
-static enum nss_status
-internal_nisplus_setpwent (int *errnop)
-{
-  enum nss_status status = NSS_STATUS_SUCCESS;
-
-  if (pwd_tablename_val == NULL)
-    status = _nss_pwd_create_tablename (errnop);
-
-  if (status == NSS_STATUS_SUCCESS)
-    {
-      ibreq = __create_ib_request (pwd_tablename_val, 0);
-      if (ibreq == NULL)
-	{
-	  *errnop = errno;
-	  return NSS_STATUS_TRYAGAIN;
-	}
-
-      nis_error retcode = __prepare_niscall (pwd_tablename_val, &dir,
-					     &bptr, 0);
-      if (retcode != NIS_SUCCESS)
-	{
-	  nis_free_request (ibreq);
-	  ibreq = NULL;
-	  status = niserr2nss (retcode);
-	}
-    }
-
-  return status;
-}
-
-
-enum nss_status
-_nss_nisplus_setpwent (int stayopen)
-{
-  enum nss_status status;
-
-  __libc_lock_lock (lock);
-
-  internal_nisplus_endpwent ();
-
-  // XXX We need to be able to set errno.  Pass in new parameter.
-  int err;
-  status = internal_nisplus_setpwent (&err);
-
-  __libc_lock_unlock (lock);
-
-  return status;
-}
-
-
-enum nss_status
-_nss_nisplus_endpwent (void)
-{
-  __libc_lock_lock (lock);
-
-  internal_nisplus_endpwent ();
-
-  __libc_lock_unlock (lock);
-
-  return NSS_STATUS_SUCCESS;
-}
-
-
-static enum nss_status
-internal_nisplus_getpwent_r (struct passwd *pw, char *buffer, size_t buflen,
-			     int *errnop)
-{
-  int parse_res = -1;
-  enum nss_status retval = NSS_STATUS_SUCCESS;
-
-  /* Get the next entry until we found a correct one. */
-  do
-    {
-      nis_error status;
-      nis_result result;
-      memset (&result, '\0', sizeof (result));
-
-      if (cursor.n_bytes == NULL)
-	{
-	  if (ibreq == NULL)
-	    {
-	      retval = internal_nisplus_setpwent (errnop);
-	      if (retval != NSS_STATUS_SUCCESS)
-		return retval;
-	    }
-
-	  status = __do_niscall3 (&bptr, NIS_IBFIRST,
-				  (xdrproc_t) _xdr_ib_request,
-				  (caddr_t) ibreq,
-				  (xdrproc_t) _xdr_nis_result,
-				  (caddr_t) &result,
-				  0, NULL);
-	}
-      else
-	{
-	  ibreq->ibr_cookie.n_bytes = cursor.n_bytes;
-	  ibreq->ibr_cookie.n_len = cursor.n_len;
-
-	  status = __do_niscall3 (&bptr, NIS_IBNEXT,
-				  (xdrproc_t) _xdr_ib_request,
-				  (caddr_t) ibreq,
-				  (xdrproc_t) _xdr_nis_result,
-				  (caddr_t) &result,
-				  0, NULL);
-
-	  ibreq->ibr_cookie.n_bytes = NULL;
-	  ibreq->ibr_cookie.n_len = 0;
-	}
-
-      if (status != NIS_SUCCESS)
-	return niserr2nss (status);
-
-      if (NIS_RES_STATUS (&result) == NIS_NOTFOUND)
-	{
-	  /* No more entries on this server.  This means we have to go
-	     to the next server on the path.  */
-	  status = __follow_path (&tablepath, &tableptr, ibreq, &bptr);
-	  if (status != NIS_SUCCESS)
-	    return niserr2nss (status);
-
-	  directory_obj *newdir = NULL;
-	  dir_binding newbptr;
-	  status = __prepare_niscall (ibreq->ibr_name, &newdir, &newbptr, 0);
-	  if (status != NIS_SUCCESS)
-	    return niserr2nss (status);
-
-	  nis_free_directory (dir);
-	  dir = newdir;
-	  __nisbind_destroy (&bptr);
-	  bptr = newbptr;
-
-	  xdr_free ((xdrproc_t) xdr_netobj, (char *) &result.cookie);
-	  result.cookie.n_bytes = NULL;
-	  result.cookie.n_len = 0;
-	  parse_res = 0;
-	  goto next;
-	}
-      else if (NIS_RES_STATUS (&result) != NIS_SUCCESS)
-	return niserr2nss (NIS_RES_STATUS (&result));
-
-      parse_res = _nss_nisplus_parse_pwent (&result, pw, buffer,
-					    buflen, errnop);
-
-      if (__glibc_unlikely (parse_res == -1))
-	{
-	  *errnop = ERANGE;
-	  retval = NSS_STATUS_TRYAGAIN;
-	  goto freeres;
-	}
-
-    next:
-      /* Free the old cursor.  */
-      xdr_free ((xdrproc_t) xdr_netobj, (char *) &cursor);
-      /* Remember the new one.  */
-      cursor.n_bytes = result.cookie.n_bytes;
-      cursor.n_len = result.cookie.n_len;
-      /* Free the result structure.  NB: we do not remove the cookie.  */
-      result.cookie.n_bytes = NULL;
-      result.cookie.n_len = 0;
-    freeres:
-      xdr_free ((xdrproc_t) _xdr_nis_result, (char *) &result);
-      memset (&result, '\0', sizeof (result));
-    }
-  while (!parse_res);
-
-  return retval;
-}
-
-enum nss_status
-_nss_nisplus_getpwent_r (struct passwd *result, char *buffer, size_t buflen,
-			 int *errnop)
-{
-  int status;
-
-  __libc_lock_lock (lock);
-
-  status = internal_nisplus_getpwent_r (result, buffer, buflen, errnop);
-
-  __libc_lock_unlock (lock);
-
-  return status;
-}
-
-enum nss_status
-_nss_nisplus_getpwnam_r (const char *name, struct passwd *pw,
-			 char *buffer, size_t buflen, int *errnop)
-{
-  int parse_res;
-
-  if (pwd_tablename_val == NULL)
-    {
-      enum nss_status status = _nss_pwd_create_tablename (errnop);
-
-      if (status != NSS_STATUS_SUCCESS)
-	return status;
-    }
-
-  if (name == NULL)
-    {
-      *errnop = EINVAL;
-      return NSS_STATUS_UNAVAIL;
-    }
-
-  nis_result *result;
-  char buf[strlen (name) + 9 + pwd_tablename_len];
-  int olderr = errno;
-
-  snprintf (buf, sizeof (buf), "[name=%s],%s", name, pwd_tablename_val);
-
-  result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM, NULL, NULL);
-
-  if (result == NULL)
-    {
-      *errnop = ENOMEM;
-      return NSS_STATUS_TRYAGAIN;
-    }
-
-  if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
-    {
-      enum nss_status status =  niserr2nss (result->status);
-
-      __set_errno (olderr);
-
-      nis_freeresult (result);
-      return status;
-    }
-
-  parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop);
-
-  nis_freeresult (result);
-
-  if (__glibc_unlikely (parse_res < 1))
-    {
-      if (parse_res == -1)
-	{
-	  *errnop = ERANGE;
-	  return NSS_STATUS_TRYAGAIN;
-	}
-      else
-	{
-	  __set_errno (olderr);
-	  return NSS_STATUS_NOTFOUND;
-	}
-    }
-
-  return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_nisplus_getpwuid_r (const uid_t uid, struct passwd *pw,
-			 char *buffer, size_t buflen, int *errnop)
-{
-  if (pwd_tablename_val == NULL)
-    {
-      enum nss_status status = _nss_pwd_create_tablename (errnop);
-
-      if (status != NSS_STATUS_SUCCESS)
-	return status;
-    }
-
-  int parse_res;
-  nis_result *result;
-  char buf[8 + 3 * sizeof (unsigned long int) + pwd_tablename_len];
-  int olderr = errno;
-
-  snprintf (buf, sizeof (buf), "[uid=%lu],%s",
-	    (unsigned long int) uid, pwd_tablename_val);
-
-  result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM, NULL, NULL);
-
-  if (result == NULL)
-    {
-      *errnop = ENOMEM;
-      return NSS_STATUS_TRYAGAIN;
-    }
-
-  if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
-    {
-      enum nss_status status = niserr2nss (result->status);
-
-      __set_errno (olderr);
-
-      nis_freeresult (result);
-      return status;
-    }
-
-  parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop);
-
-  nis_freeresult (result);
-
-  if (__glibc_unlikely (parse_res < 1))
-    {
-      if (parse_res == -1)
-	{
-	  *errnop = ERANGE;
-	  return NSS_STATUS_TRYAGAIN;
-	}
-      else
-	{
-	  __set_errno (olderr);
-	  return NSS_STATUS_NOTFOUND;
-	}
-    }
-
-  return NSS_STATUS_SUCCESS;
-}