/****************************************************************************
 * libs/libc/pwd/lib_pwd.h
 *
 *   Copyright (C) 2019 Gregory Nutt. All rights reserved.
 *   Author: Michael Jung <mijung@gmx.net>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 ****************************************************************************/

#ifndef __LIBS_LIBC_PWD_LIB_PWD_H
#define __LIBS_LIBC_PWD_LIB_PWD_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include <pwd.h>

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

#define ROOT_NAME  "root"
#define ROOT_UID   0
#define ROOT_GID   0
#define ROOT_DIR   "/root"
#define ROOT_SHELL "/bin/nsh"

/****************************************************************************
 * Public Data
 ****************************************************************************/

#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

#ifdef CONFIG_LIBC_PASSWD_FILE
/* Data for non-reentrant group functions */

EXTERN struct passwd g_passwd;
EXTERN char g_passwd_buffer[CONFIG_LIBC_PASSWD_LINESIZE];
#endif

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

FAR struct passwd *getpwbuf(uid_t uid, gid_t gid, FAR const char *name,
                            FAR const char *dir, FAR const char *shell);
int getpwbuf_r(uid_t uid, gid_t gid, FAR const char *name,
               FAR const char *dir, FAR const char *shell,
               FAR struct passwd *pwd, FAR char *buf, size_t buflen,
               FAR struct passwd **result);

#ifdef CONFIG_LIBC_PASSWD_FILE
int pwd_findby_name(FAR const char *uname, FAR struct passwd *entry,
                    FAR char *buffer, size_t buflen);
int pwd_findby_uid(uid_t uid, FAR struct passwd *entry, FAR char *buffer,
                   size_t buflen);
#endif

#undef EXTERN
#ifdef __cplusplus
}
#endif

#endif /* __LIBS_LIBC_PWD_LIB_PWD_H */