/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 * Copyright 2024 OmniOS Community Edition (OmniOSce) Association.
 */
#ifndef _PACKER_H
#define _PACKER_H

#ifdef __cplusplus
extern "C" {
#endif

/*
 * This program is copyright Alec Muffett 1993. The author disclaims all
 * responsibility or liability with respect to it's usage or its effect
 * upon hardware or computer systems, and maintains copyright as set out
 * in the "LICENCE" document which accompanies distributions of Crack v4.0
 * and upwards.
 */

#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <synch.h>
#include <syslog.h>

#define PWADMIN         "/etc/default/passwd"
#define TRUNCSTRINGSIZE (PATH_MAX/4)
#define STRINGSIZE      PATH_MAX

#ifndef NUMWORDS
#define NUMWORDS        16
#endif
#define MAXWORDLEN      32
#define MAXBLOCKLEN     (MAXWORDLEN * NUMWORDS)

struct pi_header
{
        uint32_t pih_magic;
        uint32_t pih_numwords;
        uint16_t pih_blocklen;
        uint16_t pih_pad;
};

typedef struct
{
        FILE *ifp;
        FILE *dfp;
        FILE *wfp;

        uint32_t flags;
#define PFOR_WRITE      0x0001
#define PFOR_FLUSH      0x0002
#define PFOR_USEHWMS    0x0004

        uint32_t hwms[256];

        struct pi_header header;

        uint32_t count;
        char data[NUMWORDS][MAXWORDLEN];
} PWDICT;

#define PW_WORDS(x) ((x)->header.pih_numwords)
#define PIH_MAGIC 0x70775632

void PWRemove(char *);
PWDICT *PWOpen(char *, char *);
char *Mangle(char *, char *);

#define CRACK_TOLOWER(a)        (isupper(a)?tolower(a):(a))
#define CRACK_TOUPPER(a)        (islower(a)?toupper(a):(a))
#define STRCMP(a, b)            strcmp((a), (b))

char    *Trim(register char *);
uint32_t        FindPW(PWDICT *, char *);
int     PWClose(PWDICT *);
int     PutPW(PWDICT *, char *);
char    Chop(register char *);
char    Chomp(register char *);
char    *GetPW(PWDICT *, uint32_t);

#define DATABASE_OPEN_FAIL              -1
#define DICTIONARY_WORD                 2
#define REVERSE_DICTIONARY_WORD         3


/* Dictionary database dir and prefix */

#define CRACK_DIR               "/var/passwd"
#define CRACK_DICTPATH          "/var/passwd/pw_dict"
#define DICT_DATABASE_HWM       "pw_dict.hwm"
#define DICT_DATABASE_PWD       "pw_dict.pwd"
#define DICT_DATABASE_PWI       "pw_dict.pwi"

int packer(char *, char *);
char *Reverse(char *);
char *Lowercase(char *);
int DictCheck(const char *, char *);
int make_dict_database(char *, char *);
int build_dict_database(char *, char *);
int lock_db(char *);
void unlock_db();

/* Return values for dictionary database checks */

#define NO_DICTDATABASE         1
#define UPDATE_DICTDATABASE     2
#define DICTFILE_ERR            -1
#define DICTPATH_ERR            -2
#define DICTDATABASE_BUILD_ERR  -3

#ifdef __cplusplus
}
#endif

#endif /* _PACKER_H */