NEX-18462 SMB can't view ACL if posix ID can't be mapped
Review by: Gordon Ross <gordon.ross@nexenta.com>
Review by: Evan Layton <evan.layton@nexenta.com>
NEX-14547 Get UNIX group info. from AD/LDAP with partial RFC2307 schema
NEX-13132 smbd dumping core in nss_ldap.so.1`getbymember
Reviewed by: Matt Barden <matt.barden@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
   */
  
  #include "ldap_common.h"
  #include <malloc.h>
  #include <synch.h>
*** 102,111 ****
--- 103,113 ----
          switch (rc) {
          case NS_LDAP_SUCCESS:
                  return (NSS_SUCCESS);
  
          case NS_LDAP_NOTFOUND:
+                 errno = 0;
                  return (NSS_NOTFOUND);
  
          case NS_LDAP_PARTIAL:
                  return (NSS_TRYAGAIN);
  
*** 244,261 ****
   */
  
  /* ARGSUSED */
  nss_status_t
  _nss_ldap_nocb_lookup(ldap_backend_ptr be, nss_XbyY_args_t *argp,
!                 char *database, char *searchfilter, char *domain,
                  int (*init_filter_cb)(const ns_ldap_search_desc_t *desc,
                  char **realfilter, const void *userdata),
                  const void *userdata)
  {
          ns_ldap_error_t *error = NULL;
          int             rc;
  
  #ifdef  DEBUG
          (void) fprintf(stdout, "\n[ldap_common.c: _nss_ldap_nocb_lookup]\n");
          (void) fprintf(stdout, "\tsearchfilter: %s\n", searchfilter);
          (void) fprintf(stdout, "\tdatabase: %s\n", database);
          (void) fprintf(stdout,
--- 246,266 ----
   */
  
  /* ARGSUSED */
  nss_status_t
  _nss_ldap_nocb_lookup(ldap_backend_ptr be, nss_XbyY_args_t *argp,
!     char *database, char *searchfilter, const char * const *attrs,
      int (*init_filter_cb)(const ns_ldap_search_desc_t *desc,
      char **realfilter, const void *userdata),
      const void *userdata)
  {
          ns_ldap_error_t *error = NULL;
          int             rc;
  
+         if (attrs == NULL)
+                 attrs = be->attrs;
+ 
  #ifdef  DEBUG
          (void) fprintf(stdout, "\n[ldap_common.c: _nss_ldap_nocb_lookup]\n");
          (void) fprintf(stdout, "\tsearchfilter: %s\n", searchfilter);
          (void) fprintf(stdout, "\tdatabase: %s\n", database);
          (void) fprintf(stdout,
*** 263,273 ****
  #endif  /* DEBUG */
  
          (void) __ns_ldap_freeResult(&be->result);
  
          if ((rc = __ns_ldap_list(database, searchfilter, init_filter_cb,
!             be->attrs, NULL, 0, &be->result, &error, NULL,
              userdata)) != NS_LDAP_SUCCESS) {
                  if (argp != NULL)
                          argp->returnval = 0;
                  rc = switch_err(rc, error);
                  (void) __ns_ldap_freeError(&error);
--- 268,278 ----
  #endif  /* DEBUG */
  
          (void) __ns_ldap_freeResult(&be->result);
  
          if ((rc = __ns_ldap_list(database, searchfilter, init_filter_cb,
!             attrs, NULL, 0, &be->result, &error, NULL,
              userdata)) != NS_LDAP_SUCCESS) {
                  if (argp != NULL)
                          argp->returnval = 0;
                  rc = switch_err(rc, error);
                  (void) __ns_ldap_freeError(&error);