1 /*
2 * Copyright 2001-2023 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <string.h>
11 #include "internal/cryptlib.h"
12 #include <openssl/e_os2.h>
13 #include <openssl/buffer.h>
14 #include <openssl/ui.h>
15 #include <openssl/err.h>
16 #include "ui_local.h"
17
UI_new(void)18 UI *UI_new(void)
19 {
20 return UI_new_method(NULL);
21 }
22
UI_new_method(const UI_METHOD * method)23 UI *UI_new_method(const UI_METHOD *method)
24 {
25 UI *ret = OPENSSL_zalloc(sizeof(*ret));
26
27 if (ret == NULL)
28 return NULL;
29
30 ret->lock = CRYPTO_THREAD_lock_new();
31 if (ret->lock == NULL) {
32 ERR_raise(ERR_LIB_UI, ERR_R_CRYPTO_LIB);
33 OPENSSL_free(ret);
34 return NULL;
35 }
36
37 if (method == NULL)
38 method = UI_get_default_method();
39 if (method == NULL)
40 method = UI_null();
41 ret->meth = method;
42
43 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI, ret, &ret->ex_data)) {
44 UI_free(ret);
45 return NULL;
46 }
47 return ret;
48 }
49
free_string(UI_STRING * uis)50 static void free_string(UI_STRING *uis)
51 {
52 if (uis->flags & OUT_STRING_FREEABLE) {
53 OPENSSL_free((char *)uis->out_string);
54 switch (uis->type) {
55 case UIT_BOOLEAN:
56 OPENSSL_free((char *)uis->_.boolean_data.action_desc);
57 OPENSSL_free((char *)uis->_.boolean_data.ok_chars);
58 OPENSSL_free((char *)uis->_.boolean_data.cancel_chars);
59 break;
60 case UIT_NONE:
61 case UIT_PROMPT:
62 case UIT_VERIFY:
63 case UIT_ERROR:
64 case UIT_INFO:
65 break;
66 }
67 }
68 OPENSSL_free(uis);
69 }
70
UI_free(UI * ui)71 void UI_free(UI *ui)
72 {
73 if (ui == NULL)
74 return;
75 if ((ui->flags & UI_FLAG_DUPL_DATA) != 0) {
76 ui->meth->ui_destroy_data(ui, ui->user_data);
77 }
78 sk_UI_STRING_pop_free(ui->strings, free_string);
79 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI, ui, &ui->ex_data);
80 CRYPTO_THREAD_lock_free(ui->lock);
81 OPENSSL_free(ui);
82 }
83
allocate_string_stack(UI * ui)84 static int allocate_string_stack(UI *ui)
85 {
86 if (ui->strings == NULL) {
87 ui->strings = sk_UI_STRING_new_null();
88 if (ui->strings == NULL) {
89 return -1;
90 }
91 }
92 return 0;
93 }
94
general_allocate_prompt(UI * ui,const char * prompt,int prompt_freeable,enum UI_string_types type,int input_flags,char * result_buf)95 static UI_STRING *general_allocate_prompt(UI *ui, const char *prompt,
96 int prompt_freeable,
97 enum UI_string_types type,
98 int input_flags, char *result_buf)
99 {
100 UI_STRING *ret = NULL;
101
102 if (prompt == NULL) {
103 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
104 } else if ((type == UIT_PROMPT || type == UIT_VERIFY
105 || type == UIT_BOOLEAN) && result_buf == NULL) {
106 ERR_raise(ERR_LIB_UI, UI_R_NO_RESULT_BUFFER);
107 } else if ((ret = OPENSSL_zalloc(sizeof(*ret))) != NULL) {
108 ret->out_string = prompt;
109 ret->flags = prompt_freeable ? OUT_STRING_FREEABLE : 0;
110 ret->input_flags = input_flags;
111 ret->type = type;
112 ret->result_buf = result_buf;
113 }
114 return ret;
115 }
116
general_allocate_string(UI * ui,const char * prompt,int prompt_freeable,enum UI_string_types type,int input_flags,char * result_buf,int minsize,int maxsize,const char * test_buf)117 static int general_allocate_string(UI *ui, const char *prompt,
118 int prompt_freeable,
119 enum UI_string_types type, int input_flags,
120 char *result_buf, int minsize, int maxsize,
121 const char *test_buf)
122 {
123 int ret = -1;
124 UI_STRING *s = general_allocate_prompt(ui, prompt, prompt_freeable,
125 type, input_flags, result_buf);
126
127 if (s != NULL) {
128 if (allocate_string_stack(ui) >= 0) {
129 s->_.string_data.result_minsize = minsize;
130 s->_.string_data.result_maxsize = maxsize;
131 s->_.string_data.test_buf = test_buf;
132 ret = sk_UI_STRING_push(ui->strings, s);
133 /* sk_push() returns 0 on error. Let's adapt that */
134 if (ret <= 0) {
135 ret--;
136 free_string(s);
137 }
138 } else
139 free_string(s);
140 }
141 return ret;
142 }
143
general_allocate_boolean(UI * ui,const char * prompt,const char * action_desc,const char * ok_chars,const char * cancel_chars,int prompt_freeable,enum UI_string_types type,int input_flags,char * result_buf)144 static int general_allocate_boolean(UI *ui,
145 const char *prompt,
146 const char *action_desc,
147 const char *ok_chars,
148 const char *cancel_chars,
149 int prompt_freeable,
150 enum UI_string_types type,
151 int input_flags, char *result_buf)
152 {
153 int ret = -1;
154 UI_STRING *s;
155 const char *p;
156
157 if (ok_chars == NULL) {
158 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
159 } else if (cancel_chars == NULL) {
160 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
161 } else {
162 for (p = ok_chars; *p != '\0'; p++) {
163 if (strchr(cancel_chars, *p) != NULL) {
164 ERR_raise(ERR_LIB_UI, UI_R_COMMON_OK_AND_CANCEL_CHARACTERS);
165 }
166 }
167
168 s = general_allocate_prompt(ui, prompt, prompt_freeable,
169 type, input_flags, result_buf);
170
171 if (s != NULL) {
172 if (allocate_string_stack(ui) >= 0) {
173 s->_.boolean_data.action_desc = action_desc;
174 s->_.boolean_data.ok_chars = ok_chars;
175 s->_.boolean_data.cancel_chars = cancel_chars;
176 ret = sk_UI_STRING_push(ui->strings, s);
177 /*
178 * sk_push() returns 0 on error. Let's adapt that
179 */
180 if (ret <= 0) {
181 ret--;
182 free_string(s);
183 }
184 } else
185 free_string(s);
186 }
187 }
188 return ret;
189 }
190
191 /*
192 * Returns the index to the place in the stack or -1 for error. Uses a
193 * direct reference to the prompt.
194 */
UI_add_input_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize)195 int UI_add_input_string(UI *ui, const char *prompt, int flags,
196 char *result_buf, int minsize, int maxsize)
197 {
198 return general_allocate_string(ui, prompt, 0,
199 UIT_PROMPT, flags, result_buf, minsize,
200 maxsize, NULL);
201 }
202
203 /* Same as UI_add_input_string(), excepts it takes a copy of the prompt */
UI_dup_input_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize)204 int UI_dup_input_string(UI *ui, const char *prompt, int flags,
205 char *result_buf, int minsize, int maxsize)
206 {
207 char *prompt_copy = NULL;
208
209 if (prompt != NULL) {
210 prompt_copy = OPENSSL_strdup(prompt);
211 if (prompt_copy == NULL)
212 return 0;
213 }
214
215 return general_allocate_string(ui, prompt_copy, 1,
216 UIT_PROMPT, flags, result_buf, minsize,
217 maxsize, NULL);
218 }
219
UI_add_verify_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize,const char * test_buf)220 int UI_add_verify_string(UI *ui, const char *prompt, int flags,
221 char *result_buf, int minsize, int maxsize,
222 const char *test_buf)
223 {
224 return general_allocate_string(ui, prompt, 0,
225 UIT_VERIFY, flags, result_buf, minsize,
226 maxsize, test_buf);
227 }
228
UI_dup_verify_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize,const char * test_buf)229 int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
230 char *result_buf, int minsize, int maxsize,
231 const char *test_buf)
232 {
233 char *prompt_copy = NULL;
234
235 if (prompt != NULL) {
236 prompt_copy = OPENSSL_strdup(prompt);
237 if (prompt_copy == NULL)
238 return -1;
239 }
240
241 return general_allocate_string(ui, prompt_copy, 1,
242 UIT_VERIFY, flags, result_buf, minsize,
243 maxsize, test_buf);
244 }
245
UI_add_input_boolean(UI * ui,const char * prompt,const char * action_desc,const char * ok_chars,const char * cancel_chars,int flags,char * result_buf)246 int UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc,
247 const char *ok_chars, const char *cancel_chars,
248 int flags, char *result_buf)
249 {
250 return general_allocate_boolean(ui, prompt, action_desc,
251 ok_chars, cancel_chars, 0, UIT_BOOLEAN,
252 flags, result_buf);
253 }
254
UI_dup_input_boolean(UI * ui,const char * prompt,const char * action_desc,const char * ok_chars,const char * cancel_chars,int flags,char * result_buf)255 int UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc,
256 const char *ok_chars, const char *cancel_chars,
257 int flags, char *result_buf)
258 {
259 char *prompt_copy = NULL;
260 char *action_desc_copy = NULL;
261 char *ok_chars_copy = NULL;
262 char *cancel_chars_copy = NULL;
263
264 if (prompt != NULL) {
265 prompt_copy = OPENSSL_strdup(prompt);
266 if (prompt_copy == NULL)
267 goto err;
268 }
269
270 if (action_desc != NULL) {
271 action_desc_copy = OPENSSL_strdup(action_desc);
272 if (action_desc_copy == NULL)
273 goto err;
274 }
275
276 if (ok_chars != NULL) {
277 ok_chars_copy = OPENSSL_strdup(ok_chars);
278 if (ok_chars_copy == NULL)
279 goto err;
280 }
281
282 if (cancel_chars != NULL) {
283 cancel_chars_copy = OPENSSL_strdup(cancel_chars);
284 if (cancel_chars_copy == NULL)
285 goto err;
286 }
287
288 return general_allocate_boolean(ui, prompt_copy, action_desc_copy,
289 ok_chars_copy, cancel_chars_copy, 1,
290 UIT_BOOLEAN, flags, result_buf);
291 err:
292 OPENSSL_free(prompt_copy);
293 OPENSSL_free(action_desc_copy);
294 OPENSSL_free(ok_chars_copy);
295 OPENSSL_free(cancel_chars_copy);
296 return -1;
297 }
298
UI_add_info_string(UI * ui,const char * text)299 int UI_add_info_string(UI *ui, const char *text)
300 {
301 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0,
302 NULL);
303 }
304
UI_dup_info_string(UI * ui,const char * text)305 int UI_dup_info_string(UI *ui, const char *text)
306 {
307 char *text_copy = NULL;
308
309 if (text != NULL) {
310 text_copy = OPENSSL_strdup(text);
311 if (text_copy == NULL)
312 return -1;
313 }
314
315 return general_allocate_string(ui, text_copy, 1, UIT_INFO, 0, NULL,
316 0, 0, NULL);
317 }
318
UI_add_error_string(UI * ui,const char * text)319 int UI_add_error_string(UI *ui, const char *text)
320 {
321 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0,
322 NULL);
323 }
324
UI_dup_error_string(UI * ui,const char * text)325 int UI_dup_error_string(UI *ui, const char *text)
326 {
327 char *text_copy = NULL;
328
329 if (text != NULL) {
330 text_copy = OPENSSL_strdup(text);
331 if (text_copy == NULL)
332 return -1;
333 }
334 return general_allocate_string(ui, text_copy, 1, UIT_ERROR, 0, NULL,
335 0, 0, NULL);
336 }
337
UI_construct_prompt(UI * ui,const char * phrase_desc,const char * object_name)338 char *UI_construct_prompt(UI *ui, const char *phrase_desc,
339 const char *object_name)
340 {
341 char *prompt = NULL;
342
343 if (ui != NULL && ui->meth != NULL && ui->meth->ui_construct_prompt != NULL)
344 prompt = ui->meth->ui_construct_prompt(ui, phrase_desc, object_name);
345 else {
346 char prompt1[] = "Enter ";
347 char prompt2[] = " for ";
348 char prompt3[] = ":";
349 int len = 0;
350
351 if (phrase_desc == NULL)
352 return NULL;
353 len = sizeof(prompt1) - 1 + strlen(phrase_desc);
354 if (object_name != NULL)
355 len += sizeof(prompt2) - 1 + strlen(object_name);
356 len += sizeof(prompt3) - 1;
357
358 if ((prompt = OPENSSL_malloc(len + 1)) == NULL)
359 return NULL;
360 OPENSSL_strlcpy(prompt, prompt1, len + 1);
361 OPENSSL_strlcat(prompt, phrase_desc, len + 1);
362 if (object_name != NULL) {
363 OPENSSL_strlcat(prompt, prompt2, len + 1);
364 OPENSSL_strlcat(prompt, object_name, len + 1);
365 }
366 OPENSSL_strlcat(prompt, prompt3, len + 1);
367 }
368 return prompt;
369 }
370
UI_add_user_data(UI * ui,void * user_data)371 void *UI_add_user_data(UI *ui, void *user_data)
372 {
373 void *old_data = ui->user_data;
374
375 if ((ui->flags & UI_FLAG_DUPL_DATA) != 0) {
376 ui->meth->ui_destroy_data(ui, old_data);
377 old_data = NULL;
378 }
379 ui->user_data = user_data;
380 ui->flags &= ~UI_FLAG_DUPL_DATA;
381 return old_data;
382 }
383
UI_dup_user_data(UI * ui,void * user_data)384 int UI_dup_user_data(UI *ui, void *user_data)
385 {
386 void *duplicate = NULL;
387
388 if (ui->meth->ui_duplicate_data == NULL
389 || ui->meth->ui_destroy_data == NULL) {
390 ERR_raise(ERR_LIB_UI, UI_R_USER_DATA_DUPLICATION_UNSUPPORTED);
391 return -1;
392 }
393
394 duplicate = ui->meth->ui_duplicate_data(ui, user_data);
395 if (duplicate == NULL) {
396 ERR_raise(ERR_LIB_UI, ERR_R_UI_LIB);
397 return -1;
398 }
399
400 (void)UI_add_user_data(ui, duplicate);
401 ui->flags |= UI_FLAG_DUPL_DATA;
402
403 return 0;
404 }
405
UI_get0_user_data(UI * ui)406 void *UI_get0_user_data(UI *ui)
407 {
408 return ui->user_data;
409 }
410
UI_get0_result(UI * ui,int i)411 const char *UI_get0_result(UI *ui, int i)
412 {
413 if (i < 0) {
414 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_SMALL);
415 return NULL;
416 }
417 if (i >= sk_UI_STRING_num(ui->strings)) {
418 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_LARGE);
419 return NULL;
420 }
421 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i));
422 }
423
UI_get_result_length(UI * ui,int i)424 int UI_get_result_length(UI *ui, int i)
425 {
426 if (i < 0) {
427 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_SMALL);
428 return -1;
429 }
430 if (i >= sk_UI_STRING_num(ui->strings)) {
431 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_LARGE);
432 return -1;
433 }
434 return UI_get_result_string_length(sk_UI_STRING_value(ui->strings, i));
435 }
436
print_error(const char * str,size_t len,UI * ui)437 static int print_error(const char *str, size_t len, UI *ui)
438 {
439 UI_STRING uis;
440
441 memset(&uis, 0, sizeof(uis));
442 uis.type = UIT_ERROR;
443 uis.out_string = str;
444
445 if (ui->meth->ui_write_string != NULL
446 && ui->meth->ui_write_string(ui, &uis) <= 0)
447 return -1;
448 return 0;
449 }
450
UI_process(UI * ui)451 int UI_process(UI *ui)
452 {
453 int i, ok = 0;
454 const char *state = "processing";
455
456 if (ui->meth->ui_open_session != NULL
457 && ui->meth->ui_open_session(ui) <= 0) {
458 state = "opening session";
459 ok = -1;
460 goto err;
461 }
462
463 if (ui->flags & UI_FLAG_PRINT_ERRORS)
464 ERR_print_errors_cb((int (*)(const char *, size_t, void *))
465 print_error, (void *)ui);
466
467 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) {
468 if (ui->meth->ui_write_string != NULL
469 && (ui->meth->ui_write_string(ui,
470 sk_UI_STRING_value(ui->strings, i))
471 <= 0))
472 {
473 state = "writing strings";
474 ok = -1;
475 goto err;
476 }
477 }
478
479 if (ui->meth->ui_flush != NULL)
480 switch (ui->meth->ui_flush(ui)) {
481 case -1: /* Interrupt/Cancel/something... */
482 ui->flags &= ~UI_FLAG_REDOABLE;
483 ok = -2;
484 goto err;
485 case 0: /* Errors */
486 state = "flushing";
487 ok = -1;
488 goto err;
489 default: /* Success */
490 ok = 0;
491 break;
492 }
493
494 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) {
495 if (ui->meth->ui_read_string != NULL) {
496 switch (ui->meth->ui_read_string(ui,
497 sk_UI_STRING_value(ui->strings,
498 i))) {
499 case -1: /* Interrupt/Cancel/something... */
500 ui->flags &= ~UI_FLAG_REDOABLE;
501 ok = -2;
502 goto err;
503 case 0: /* Errors */
504 state = "reading strings";
505 ok = -1;
506 goto err;
507 default: /* Success */
508 ok = 0;
509 break;
510 }
511 } else {
512 ui->flags &= ~UI_FLAG_REDOABLE;
513 ok = -2;
514 goto err;
515 }
516 }
517
518 state = NULL;
519 err:
520 if (ui->meth->ui_close_session != NULL
521 && ui->meth->ui_close_session(ui) <= 0) {
522 if (state == NULL)
523 state = "closing session";
524 ok = -1;
525 }
526
527 if (ok == -1)
528 ERR_raise_data(ERR_LIB_UI, UI_R_PROCESSING_ERROR, "while %s", state);
529 return ok;
530 }
531
UI_ctrl(UI * ui,int cmd,long i,void * p,void (* f)(void))532 int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void))
533 {
534 if (ui == NULL) {
535 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
536 return -1;
537 }
538 switch (cmd) {
539 case UI_CTRL_PRINT_ERRORS:
540 {
541 int save_flag = ! !(ui->flags & UI_FLAG_PRINT_ERRORS);
542 if (i)
543 ui->flags |= UI_FLAG_PRINT_ERRORS;
544 else
545 ui->flags &= ~UI_FLAG_PRINT_ERRORS;
546 return save_flag;
547 }
548 case UI_CTRL_IS_REDOABLE:
549 return ! !(ui->flags & UI_FLAG_REDOABLE);
550 default:
551 break;
552 }
553 ERR_raise(ERR_LIB_UI, UI_R_UNKNOWN_CONTROL_COMMAND);
554 return -1;
555 }
556
UI_set_ex_data(UI * r,int idx,void * arg)557 int UI_set_ex_data(UI *r, int idx, void *arg)
558 {
559 return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
560 }
561
UI_get_ex_data(const UI * r,int idx)562 void *UI_get_ex_data(const UI *r, int idx)
563 {
564 return CRYPTO_get_ex_data(&r->ex_data, idx);
565 }
566
UI_get_method(UI * ui)567 const UI_METHOD *UI_get_method(UI *ui)
568 {
569 return ui->meth;
570 }
571
UI_set_method(UI * ui,const UI_METHOD * meth)572 const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth)
573 {
574 ui->meth = meth;
575 return ui->meth;
576 }
577
UI_create_method(const char * name)578 UI_METHOD *UI_create_method(const char *name)
579 {
580 UI_METHOD *ui_method = NULL;
581
582 if ((ui_method = OPENSSL_zalloc(sizeof(*ui_method))) == NULL
583 || (ui_method->name = OPENSSL_strdup(name)) == NULL
584 || !CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
585 &ui_method->ex_data)) {
586
587 if (ui_method != NULL) {
588 if (ui_method->name != NULL)
589 /*
590 * These conditions indicate that the CRYPTO_new_ex_data()
591 * call failed.
592 */
593 ERR_raise(ERR_LIB_UI, ERR_R_CRYPTO_LIB);
594 OPENSSL_free(ui_method->name);
595 }
596 OPENSSL_free(ui_method);
597 return NULL;
598 }
599 return ui_method;
600 }
601
602 /*
603 * BIG FSCKING WARNING!!!! If you use this on a statically allocated method
604 * (that is, it hasn't been allocated using UI_create_method(), you deserve
605 * anything Murphy can throw at you and more! You have been warned.
606 */
UI_destroy_method(UI_METHOD * ui_method)607 void UI_destroy_method(UI_METHOD *ui_method)
608 {
609 if (ui_method == NULL)
610 return;
611 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
612 &ui_method->ex_data);
613 OPENSSL_free(ui_method->name);
614 ui_method->name = NULL;
615 OPENSSL_free(ui_method);
616 }
617
UI_method_set_opener(UI_METHOD * method,int (* opener)(UI * ui))618 int UI_method_set_opener(UI_METHOD *method, int (*opener) (UI *ui))
619 {
620 if (method != NULL) {
621 method->ui_open_session = opener;
622 return 0;
623 }
624 return -1;
625 }
626
UI_method_set_writer(UI_METHOD * method,int (* writer)(UI * ui,UI_STRING * uis))627 int UI_method_set_writer(UI_METHOD *method,
628 int (*writer) (UI *ui, UI_STRING *uis))
629 {
630 if (method != NULL) {
631 method->ui_write_string = writer;
632 return 0;
633 }
634 return -1;
635 }
636
UI_method_set_flusher(UI_METHOD * method,int (* flusher)(UI * ui))637 int UI_method_set_flusher(UI_METHOD *method, int (*flusher) (UI *ui))
638 {
639 if (method != NULL) {
640 method->ui_flush = flusher;
641 return 0;
642 }
643 return -1;
644 }
645
UI_method_set_reader(UI_METHOD * method,int (* reader)(UI * ui,UI_STRING * uis))646 int UI_method_set_reader(UI_METHOD *method,
647 int (*reader) (UI *ui, UI_STRING *uis))
648 {
649 if (method != NULL) {
650 method->ui_read_string = reader;
651 return 0;
652 }
653 return -1;
654 }
655
UI_method_set_closer(UI_METHOD * method,int (* closer)(UI * ui))656 int UI_method_set_closer(UI_METHOD *method, int (*closer) (UI *ui))
657 {
658 if (method != NULL) {
659 method->ui_close_session = closer;
660 return 0;
661 }
662 return -1;
663 }
664
UI_method_set_data_duplicator(UI_METHOD * method,void * (* duplicator)(UI * ui,void * ui_data),void (* destructor)(UI * ui,void * ui_data))665 int UI_method_set_data_duplicator(UI_METHOD *method,
666 void *(*duplicator) (UI *ui, void *ui_data),
667 void (*destructor)(UI *ui, void *ui_data))
668 {
669 if (method != NULL) {
670 method->ui_duplicate_data = duplicator;
671 method->ui_destroy_data = destructor;
672 return 0;
673 }
674 return -1;
675 }
676
UI_method_set_prompt_constructor(UI_METHOD * method,char * (* prompt_constructor)(UI * ui,const char *,const char *))677 int UI_method_set_prompt_constructor(UI_METHOD *method,
678 char *(*prompt_constructor) (UI *ui,
679 const char *,
680 const char *))
681 {
682 if (method != NULL) {
683 method->ui_construct_prompt = prompt_constructor;
684 return 0;
685 }
686 return -1;
687 }
688
UI_method_set_ex_data(UI_METHOD * method,int idx,void * data)689 int UI_method_set_ex_data(UI_METHOD *method, int idx, void *data)
690 {
691 return CRYPTO_set_ex_data(&method->ex_data, idx, data);
692 }
693
UI_method_get_opener(const UI_METHOD * method)694 int (*UI_method_get_opener(const UI_METHOD *method)) (UI *)
695 {
696 if (method != NULL)
697 return method->ui_open_session;
698 return NULL;
699 }
700
UI_method_get_writer(const UI_METHOD * method)701 int (*UI_method_get_writer(const UI_METHOD *method)) (UI *, UI_STRING *)
702 {
703 if (method != NULL)
704 return method->ui_write_string;
705 return NULL;
706 }
707
UI_method_get_flusher(const UI_METHOD * method)708 int (*UI_method_get_flusher(const UI_METHOD *method)) (UI *)
709 {
710 if (method != NULL)
711 return method->ui_flush;
712 return NULL;
713 }
714
UI_method_get_reader(const UI_METHOD * method)715 int (*UI_method_get_reader(const UI_METHOD *method)) (UI *, UI_STRING *)
716 {
717 if (method != NULL)
718 return method->ui_read_string;
719 return NULL;
720 }
721
UI_method_get_closer(const UI_METHOD * method)722 int (*UI_method_get_closer(const UI_METHOD *method)) (UI *)
723 {
724 if (method != NULL)
725 return method->ui_close_session;
726 return NULL;
727 }
728
UI_method_get_prompt_constructor(const UI_METHOD * method)729 char *(*UI_method_get_prompt_constructor(const UI_METHOD *method))
730 (UI *, const char *, const char *)
731 {
732 if (method != NULL)
733 return method->ui_construct_prompt;
734 return NULL;
735 }
736
UI_method_get_data_duplicator(const UI_METHOD * method)737 void *(*UI_method_get_data_duplicator(const UI_METHOD *method)) (UI *, void *)
738 {
739 if (method != NULL)
740 return method->ui_duplicate_data;
741 return NULL;
742 }
743
UI_method_get_data_destructor(const UI_METHOD * method)744 void (*UI_method_get_data_destructor(const UI_METHOD *method)) (UI *, void *)
745 {
746 if (method != NULL)
747 return method->ui_destroy_data;
748 return NULL;
749 }
750
UI_method_get_ex_data(const UI_METHOD * method,int idx)751 const void *UI_method_get_ex_data(const UI_METHOD *method, int idx)
752 {
753 return CRYPTO_get_ex_data(&method->ex_data, idx);
754 }
755
UI_get_string_type(UI_STRING * uis)756 enum UI_string_types UI_get_string_type(UI_STRING *uis)
757 {
758 return uis->type;
759 }
760
UI_get_input_flags(UI_STRING * uis)761 int UI_get_input_flags(UI_STRING *uis)
762 {
763 return uis->input_flags;
764 }
765
UI_get0_output_string(UI_STRING * uis)766 const char *UI_get0_output_string(UI_STRING *uis)
767 {
768 return uis->out_string;
769 }
770
UI_get0_action_string(UI_STRING * uis)771 const char *UI_get0_action_string(UI_STRING *uis)
772 {
773 switch (uis->type) {
774 case UIT_BOOLEAN:
775 return uis->_.boolean_data.action_desc;
776 case UIT_PROMPT:
777 case UIT_NONE:
778 case UIT_VERIFY:
779 case UIT_INFO:
780 case UIT_ERROR:
781 break;
782 }
783 return NULL;
784 }
785
UI_get0_result_string(UI_STRING * uis)786 const char *UI_get0_result_string(UI_STRING *uis)
787 {
788 switch (uis->type) {
789 case UIT_PROMPT:
790 case UIT_VERIFY:
791 return uis->result_buf;
792 case UIT_NONE:
793 case UIT_BOOLEAN:
794 case UIT_INFO:
795 case UIT_ERROR:
796 break;
797 }
798 return NULL;
799 }
800
UI_get_result_string_length(UI_STRING * uis)801 int UI_get_result_string_length(UI_STRING *uis)
802 {
803 switch (uis->type) {
804 case UIT_PROMPT:
805 case UIT_VERIFY:
806 return uis->result_len;
807 case UIT_NONE:
808 case UIT_BOOLEAN:
809 case UIT_INFO:
810 case UIT_ERROR:
811 break;
812 }
813 return -1;
814 }
815
UI_get0_test_string(UI_STRING * uis)816 const char *UI_get0_test_string(UI_STRING *uis)
817 {
818 switch (uis->type) {
819 case UIT_VERIFY:
820 return uis->_.string_data.test_buf;
821 case UIT_NONE:
822 case UIT_BOOLEAN:
823 case UIT_INFO:
824 case UIT_ERROR:
825 case UIT_PROMPT:
826 break;
827 }
828 return NULL;
829 }
830
UI_get_result_minsize(UI_STRING * uis)831 int UI_get_result_minsize(UI_STRING *uis)
832 {
833 switch (uis->type) {
834 case UIT_PROMPT:
835 case UIT_VERIFY:
836 return uis->_.string_data.result_minsize;
837 case UIT_NONE:
838 case UIT_INFO:
839 case UIT_ERROR:
840 case UIT_BOOLEAN:
841 break;
842 }
843 return -1;
844 }
845
UI_get_result_maxsize(UI_STRING * uis)846 int UI_get_result_maxsize(UI_STRING *uis)
847 {
848 switch (uis->type) {
849 case UIT_PROMPT:
850 case UIT_VERIFY:
851 return uis->_.string_data.result_maxsize;
852 case UIT_NONE:
853 case UIT_INFO:
854 case UIT_ERROR:
855 case UIT_BOOLEAN:
856 break;
857 }
858 return -1;
859 }
860
UI_set_result(UI * ui,UI_STRING * uis,const char * result)861 int UI_set_result(UI *ui, UI_STRING *uis, const char *result)
862 {
863 return UI_set_result_ex(ui, uis, result, strlen(result));
864 }
865
UI_set_result_ex(UI * ui,UI_STRING * uis,const char * result,int len)866 int UI_set_result_ex(UI *ui, UI_STRING *uis, const char *result, int len)
867 {
868 ui->flags &= ~UI_FLAG_REDOABLE;
869
870 switch (uis->type) {
871 case UIT_PROMPT:
872 case UIT_VERIFY:
873 if (len < uis->_.string_data.result_minsize) {
874 ui->flags |= UI_FLAG_REDOABLE;
875 ERR_raise_data(ERR_LIB_UI, UI_R_RESULT_TOO_SMALL,
876 "You must type in %d to %d characters",
877 uis->_.string_data.result_minsize,
878 uis->_.string_data.result_maxsize);
879 return -1;
880 }
881 if (len > uis->_.string_data.result_maxsize) {
882 ui->flags |= UI_FLAG_REDOABLE;
883 ERR_raise_data(ERR_LIB_UI, UI_R_RESULT_TOO_LARGE,
884 "You must type in %d to %d characters",
885 uis->_.string_data.result_minsize,
886 uis->_.string_data.result_maxsize);
887 return -1;
888 }
889
890 if (uis->result_buf == NULL) {
891 ERR_raise(ERR_LIB_UI, UI_R_NO_RESULT_BUFFER);
892 return -1;
893 }
894
895 memcpy(uis->result_buf, result, len);
896 if (len <= uis->_.string_data.result_maxsize)
897 uis->result_buf[len] = '\0';
898 uis->result_len = len;
899 break;
900 case UIT_BOOLEAN:
901 {
902 const char *p;
903
904 if (uis->result_buf == NULL) {
905 ERR_raise(ERR_LIB_UI, UI_R_NO_RESULT_BUFFER);
906 return -1;
907 }
908
909 uis->result_buf[0] = '\0';
910 for (p = result; *p; p++) {
911 if (strchr(uis->_.boolean_data.ok_chars, *p)) {
912 uis->result_buf[0] = uis->_.boolean_data.ok_chars[0];
913 break;
914 }
915 if (strchr(uis->_.boolean_data.cancel_chars, *p)) {
916 uis->result_buf[0] = uis->_.boolean_data.cancel_chars[0];
917 break;
918 }
919 }
920 }
921 case UIT_NONE:
922 case UIT_INFO:
923 case UIT_ERROR:
924 break;
925 }
926 return 0;
927 }
928
