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/*
 * Copyright 2017 Red Hat, Inc.
 *
 * This Program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This Program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this Program; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307 USA
 *
 */

#ifndef back_sch_nss_h
#define back_sch_nss_h
#include <unistd.h>
#include <pwd.h>
#include <grp.h>

/* Possible results of lookup using a nss_* function.
 * Note: don't include nss.h as its path gets overriden by NSS library */
enum nss_status
{
  NSS_STATUS_TRYAGAIN = -2,
  NSS_STATUS_UNAVAIL,
  NSS_STATUS_NOTFOUND,
  NSS_STATUS_SUCCESS,
  NSS_STATUS_RETURN
};

struct nss_ops_ctx;

enum nss_status backend_nss_getpwnam(struct nss_ops_ctx *nss_context,
				     const char *name, struct passwd *pwd,
				     char *buffer, size_t buflen,
				     struct passwd **result,
				     int *lerrno);

enum nss_status backend_nss_getpwuid(struct nss_ops_ctx *nss_context,
				     uid_t uid, struct passwd *pwd,
				     char *buffer, size_t buflen,
				     struct passwd **result,
				     int *lerrno);

enum nss_status backend_nss_getgrnam(struct nss_ops_ctx *nss_context,
				     const char *name, struct group *grp,
				     char *buffer, size_t buflen,
				     struct group **result,
				     int *lerrno);

enum nss_status backend_nss_getgrgid(struct nss_ops_ctx *nss_context,
				     gid_t gid, struct group *grp,
				     char *buffer, size_t buflen,
				     struct group **result,
				     int *lerrno);

enum nss_status backend_nss_getgrouplist(struct nss_ops_ctx *nss_context,
					 const char *name, gid_t group,
					 gid_t *groups, int *ngroups,
					 int *lerrno);

#endif /* back_sch_nss_h */