/*-
 * 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.
 *
 * $FreeBSD: src/usr.sbin/pw/pw.h,v 1.16 2011/03/08 20:13:29 jkim Exp $
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <pwd.h>
#include <grp.h>
#include <sys/queue.h>
#include <sysexits.h>

#include "psdate.h"
#include "pwupd.h"

enum _mode
{
        M_ADD,
        M_DELETE,
        M_UPDATE,
        M_PRINT,
        M_NEXT,
        M_LOCK,
        M_UNLOCK,
        M_NUM
};

enum _which
{
        W_USER,
        W_GROUP,
        W_NUM
};

struct carg
{
        int               ch;
        char              *val;
        LIST_ENTRY(carg)  list;
};

LIST_HEAD(cargs, carg);

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 */
        char    **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 */
        int     expire_days;            /* Days to expiry */
        int     password_days;          /* Days to password expiry */
        int     numgroups;              /* (internal) size of default_group array */
};

#define _DEF_DIRMODE    (S_IRWXU | S_IRWXG | S_IRWXO)
#define _PATH_PW_CONF   "/etc/pw.conf"
#define _UC_MAXLINE     1024
#define _UC_MAXSHELLS   32

struct userconf *read_userconfig(char const * file);
int write_userconfig(char const * file);
struct carg *addarg(struct cargs * _args, int ch, char *argstr);
struct carg *getarg(struct cargs * _args, int ch);

int pw_user(struct userconf * cnf, int mode, struct cargs * _args);
int pw_group(struct userconf * cnf, int mode, struct cargs * _args);
char    *pw_checkname(u_char *name, int gecos);

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

int addnispwent(const char *path, struct passwd *pwd);
int delnispwent(const char *path, const char *login);
int chgnispwent(const char *path, const char *login, struct passwd *pwd);

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

int boolean_val(char const * str, int dflt);
char const *boolean_str(int val);
char *newstr(char const * p);

void pw_log(struct userconf * cnf, int mode, int which, char const * fmt,...) __printflike(4, 5);
char *pw_pwcrypt(char *password);

extern const char *Modes[];
extern const char *Which[];