pam_modules/authtok_check/packer.h

	packer.h revision c7402f0767d7a0360fabd0bd449c6baf9b282074
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
#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(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 */