/* * This file is part of John the Ripper password cracker, * Copyright (c) 1996-98 by Solar Designer */#include <stdio.h>#include <stdlib.h>#include <string.h>#include "misc.h"#include "memory.h"#include "list.h"#include "loader.h"#include "recovery.h"#include "config.h"#include "options.h"struct options_main options;static struct opt_entry opt_list[] = {	{"", FLG_PASSWD, 0, 0, 0, OPT_FMT_ADD_LIST, &options.passwd},	{"single", FLG_SINGLE_SET, FLG_CRACKING_CHK},	{"wordfile", FLG_WORDLIST_SET, FLG_CRACKING_CHK,		0, OPT_REQ_PARAM, OPT_FMT_STR_ALLOC, &options.wordlist},	{"stdin", FLG_STDIN_SET, FLG_CRACKING_CHK},	{"rules", FLG_RULES, FLG_RULES, FLG_WORDLIST_CHK, FLG_STDIN_CHK},	{"incremental", FLG_INC_SET, FLG_CRACKING_CHK,		0, 0, OPT_FMT_STR_ALLOC, &options.charset},	{"external", FLG_EXTERNAL_SET, FLG_EXTERNAL_CHK,		0, OPT_REQ_PARAM, OPT_FMT_STR_ALLOC, &options.external},	{"restore", FLG_RESTORE_SET, FLG_RESTORE_CHK,		0, ~FLG_RESTORE_SET & ~OPT_REQ_PARAM,		OPT_FMT_STR_ALLOC, &rec_name},	{"session", FLG_SESSION, FLG_SESSION,		FLG_CRACKING_SUP, OPT_REQ_PARAM,		OPT_FMT_STR_ALLOC, &rec_name},	{"makechars", FLG_MAKECHARS_SET, FLG_MAKECHARS_CHK,		0, FLG_CRACKING_CHK | FLG_SESSION | OPT_REQ_PARAM,		OPT_FMT_STR_ALLOC, &options.charset},	{"show", FLG_SHOW_SET, FLG_SHOW_CHK,		0, FLG_CRACKING_SUP | FLG_MAKECHARS_CHK},	{"test", FLG_TEST_SET, FLG_TEST_CHK,		0, ~FLG_TEST_SET & ~FLG_FORMAT & ~FLG_SAVEMEM &		~OPT_REQ_PARAM},	{"users", FLG_NONE, 0, FLG_PASSWD, OPT_REQ_PARAM,		OPT_FMT_ADD_LIST_MULTI, &options.loader.users},	{"groups", FLG_NONE, 0, FLG_PASSWD, OPT_REQ_PARAM,		OPT_FMT_ADD_LIST_MULTI, &options.loader.groups},	{"shells", FLG_NONE, 0, FLG_PASSWD, OPT_REQ_PARAM,		OPT_FMT_ADD_LIST_MULTI, &options.loader.shells},	{"salts", FLG_SALTS, FLG_SALTS, FLG_PASSWD, OPT_REQ_PARAM,		"%d", &options.loader.min_pps},	{"format", FLG_FORMAT, FLG_FORMAT,		FLG_CRACKING_SUP, FLG_MAKECHARS_CHK | OPT_REQ_PARAM,		OPT_FMT_STR_ALLOC, &options.format},	{"savemem", FLG_SAVEMEM, FLG_SAVEMEM, 0, OPT_REQ_PARAM,		"%u", &mem_saving_level},	{NULL}};#define JOHN_USAGE \"Usage: %s [OPTIONS] [PASSWORD-FILES]\n" \"-single                   \"single crack\" mode\n" \"-wordfile:FILE -stdin     wordlist mode, read words from FILE or stdin\n" \"-rules                    enable rules for wordlist mode\n" \"-incremental[:MODE]       incremental mode [using section MODE]\n" \"-external:MODE            external mode or word filter\n" \"-restore[:FILE]           restore an interrupted session [from FILE]\n" \"-session:FILE             set session file name to FILE\n" \"-makechars:FILE           make a charset, FILE will be overwritten\n" \"-show                     show cracked passwords\n" \"-test                     perform a benchmark\n" \"-users:[-]LOGIN|UID[,..]  load this (these) user(s) only\n" \"-groups:[-]GID[,..]       load users of this (these) group(s) only\n" \"-shells:[-]SHELL[,..]     load users with this (these) shell(s) only\n" \"-salts:[-]COUNT           load salts with at least COUNT passwords only\n" \"-format:NAME              force ciphertext format NAME " \	"(DES, BSDI, MD5, BF)\n" \"-savemem:LEVEL            enable memory saving, at LEVEL 1..3\n"void opt_init(int argc, char **argv){	if (!argv[1]) {		printf(JOHN_USAGE, argv[0]);		exit(0);	}	memset(&options, 0, sizeof(options));	list_init(&options.passwd);	options.loader.flags = DB_LOGIN;	list_init(&options.loader.users);	list_init(&options.loader.groups);	list_init(&options.loader.shells);	opt_process(opt_list, &options.flags, argv);	if (options.flags & FLG_SALTS)	if (options.loader.min_pps < 0) {		options.loader.max_pps = -1 - options.loader.min_pps;		options.loader.min_pps = 0;	}	if ((options.flags &	    (FLG_EXTERNAL_CHK | FLG_CRACKING_CHK | FLG_MAKECHARS_CHK)) ==	    FLG_EXTERNAL_CHK)		options.flags |= FLG_CRACKING_SET;	if (options.flags & FLG_RESTORE_CHK) {		rec_restore_args();		return;	}	if (!(options.flags & FLG_ACTION)) {		options.wordlist = cfg_get_param(SECTION_DEFAULTS, NULL,			"Wordfile");		if (!options.wordlist) {			puts("No action requested");			error();		}		options.flags |= FLG_WORDLIST_SET;	}	if ((options.flags & (FLG_PASSWD | FLG_PWD_REQ)) == FLG_PWD_REQ) {		puts("Password files required, but none specified");		error();	}	if ((options.flags & (FLG_PASSWD | FLG_PWD_SUP)) == FLG_PASSWD) {		puts("Password files specified, but no option would use them");		error();	}	rec_argc = argc; rec_argv = argv;}