2  * Copyright (c) 2000-2002 by Solar Designer. See LICENSE.
50 	x = ((fixed)(charset - 1) << FIXED_BITS) / charset;  in expected_different()
52 	while (--length > 0) y = (y * x) >> FIXED_BITS;  in expected_different()
53 	z = (fixed)charset * (((fixed)1 << FIXED_BITS) - y);  in expected_different()
94 	if (uppers && isascii(c) && isupper(c)) uppers--;  in is_simple()
95 	c = (unsigned char)newpass[length - 1];  in is_simple()
96 	if (digits && isascii(c) && isdigit(c)) digits--;  in is_simple()
99  * that there're no non-ASCII characters for digits. */  in is_simple()
107 	for (; classes > 0; classes--)  in is_simple()
110 		if (length >= params->min[0] &&  in is_simple()
111 		    chars >= expected_different(10, params->min[0]) - 1)  in is_simple()
116 		if (length >= params->min[1] &&  in is_simple()
117 		    chars >= expected_different(36, params->min[1]) - 1)  in is_simple()
119 		if (!params->passphrase_words ||  in is_simple()
120 		    words < params->passphrase_words)  in is_simple()
122 		if (length >= params->min[2] &&  in is_simple()
123 		    chars >= expected_different(27, params->min[2]) - 1)  in is_simple()
128 		if (length >= params->min[3] &&  in is_simple()
129 		    chars >= expected_different(62, params->min[3]) - 1)  in is_simple()
134 		if (length >= params->min[4] &&  in is_simple()
135 		    chars >= expected_different(95, params->min[4]) - 1)  in is_simple()
176 		*dptr++ = *--sptr;  in reverse()
204 	if (!params->match_length)	/* disabled */  in is_based()
207 	if (params->match_length < 0)	/* misconfigured */  in is_based()
216 	for (i = 0; i <= length - params->match_length; i++)  in is_based()
217 	for (j = params->match_length; i + j <= length; j++) {  in is_based()
228 			    length + 1 - (i + j));  in is_based()
246  * passwords (if short passwords are allowed) that are word-based, but
264 		if ((int)strlen(word) < params->match_length) continue;  in is_word_based()
283 	const char *reason;  in _passwdqc_check()  local
291 	reason = NULL;  in _passwdqc_check()
294 		reason = REASON_SAME;  in _passwdqc_check()
298 	if (!reason && length < params->min[4])  in _passwdqc_check()
299 		reason = REASON_SHORT;  in _passwdqc_check()
301 	if (!reason && length > params->max) {  in _passwdqc_check()
302 		if (params->max == 8) {  in _passwdqc_check()
307 				reason = REASON_SAME;  in _passwdqc_check()
309 			reason = REASON_LONG;  in _passwdqc_check()
312 	if (!reason && is_simple(params, newpass)) {  in _passwdqc_check()
313 		if (length < params->min[1] && params->min[1] <= params->max)  in _passwdqc_check()
314 			reason = REASON_SIMPLESHORT;  in _passwdqc_check()
316 			reason = REASON_SIMPLE;  in _passwdqc_check()
319 	if (!reason) {  in _passwdqc_check()
326 				u_name = unify(pw->pw_name);  in _passwdqc_check()
327 				u_gecos = unify(pw->pw_gecos);  in _passwdqc_check()
334 			reason = REASON_ERROR;  in _passwdqc_check()
337 	if (!reason && oldpass && params->similar_deny &&  in _passwdqc_check()
340 		reason = REASON_SIMILAR;  in _passwdqc_check()
342 	if (!reason && pw &&  in _passwdqc_check()
347 		reason = REASON_PERSONAL;  in _passwdqc_check()
349 	if (!reason && (int)strlen(newpass) < params->min[2] &&  in _passwdqc_check()
352 		reason = REASON_WORD;  in _passwdqc_check()
360 	return reason;  in _passwdqc_check()