/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (C) 1996
 *      David L. Nugent.  All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT 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 DAVID L. NUGENT 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 _PWUPD_H_
#define _PWUPD_H_

#include <sys/param.h>
#include <sys/types.h>

#include <pwd.h>
#include <grp.h>
#include <stdbool.h>
#include <stringlist.h>

struct pwf {
        int                 _altdir;
        void              (*_setpwent)(void);
        void              (*_endpwent)(void);
        struct passwd * (*_getpwent)(void);
        struct passwd   * (*_getpwuid)(uid_t uid);
        struct passwd   * (*_getpwnam)(const char * nam);
        void              (*_setgrent)(void);
        void              (*_endgrent)(void);
        struct group  * (*_getgrent)(void);
        struct group  * (*_getgrgid)(gid_t gid);
        struct group  * (*_getgrnam)(const char * nam);
};

struct userconf {
        int             default_password;       /* Default password for new users? */
        int             reuse_uids;             /* Reuse uids? */
        int             reuse_gids;             /* Reuse gids? */
        char            *nispasswd;             /* Path to NIS version of the passwd file */
        char            *dotdir;                /* Where to obtain skeleton files */
        char            *newmail;               /* Mail to send to new accounts */
        char            *logfile;               /* Where to log changes */
        char            *home;                  /* Where to create home directory */
        mode_t          homemode;               /* Home directory permissions */
        char            *shelldir;              /* Where shells are located */
        char            **shells;               /* List of shells */
        char            *shell_default;         /* Default shell */
        char            *default_group;         /* Default group number */
        StringList      *groups;                /* Default (additional) groups */
        char            *default_class;         /* Default user class */
        uid_t           min_uid, max_uid;       /* Allowed range of uids */
        gid_t           min_gid, max_gid;       /* Allowed range of gids */
        time_t          expire_days;            /* Days to expiry */
        time_t          password_days;          /* Days to password expiry */
};

struct pwconf {
        char             rootdir[MAXPATHLEN];
        char             etcpath[MAXPATHLEN];
        FILE             *metalog;
        int              fd;
        int              rootfd;
        bool             altroot;
        bool             checkduplicate;
};

extern struct pwf PWF;
extern struct pwf VPWF;
extern struct pwconf conf;

#define SETPWENT()      PWF._setpwent()
#define ENDPWENT()      PWF._endpwent()
#define GETPWENT()      PWF._getpwent()
#define GETPWUID(uid)   PWF._getpwuid(uid)
#define GETPWNAM(nam)   PWF._getpwnam(nam)

#define SETGRENT()      PWF._setgrent()
#define ENDGRENT()      PWF._endgrent()
#define GETGRENT()      PWF._getgrent()
#define GETGRGID(gid)   PWF._getgrgid(gid)
#define GETGRNAM(nam)   PWF._getgrnam(nam)

#define PWF_REGULAR 0
#define PWF_ALT 1
#define PWF_ROOTDIR 2

#define PWALTDIR()      PWF._altdir
#ifndef _PATH_PWD
#define _PATH_PWD       "/etc"
#endif
#ifndef _GROUP
#define _GROUP          "group"
#endif
#ifndef _MASTERPASSWD
#define _MASTERPASSWD   "master.passwd"
#endif

__BEGIN_DECLS
int addpwent(struct passwd * pwd);
int delpwent(struct passwd * pwd);
int chgpwent(char const * login, struct passwd * pwd);

char * getpwpath(char const * file);

int addgrent(struct group * grp);
int delgrent(struct group * grp);
int chggrent(char const * name, struct group * grp);

char * getgrpath(const char *file);

void vsetpwent(void);
void vendpwent(void);
struct passwd * vgetpwent(void);
struct passwd * vgetpwuid(uid_t uid);
struct passwd * vgetpwnam(const char * nam);

struct group * vgetgrent(void);
struct group * vgetgrgid(gid_t gid);
struct group * vgetgrnam(const char * nam);
void           vsetgrent(void);
void           vendgrent(void);

void copymkdir(int rootfd, char const * dir, int skelfd, mode_t mode, uid_t uid,
    gid_t gid, int flags);
bool rm_r(int rootfd, char const * dir, uid_t uid);
__END_DECLS

#endif                          /* !_PWUPD_H */