1 /*
2 * Copyright 2001-2023 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 UIerr(UI_F_UI_NEW_METHOD, ERR_R_MALLOC_FAILURE);
29 return NULL;
30 }
31
32 ret->lock = CRYPTO_THREAD_lock_new();
33 if (ret->lock == NULL) {
34 UIerr(UI_F_UI_NEW_METHOD, ERR_R_MALLOC_FAILURE);
35 OPENSSL_free(ret);
36 return NULL;
37 }
38
39 if (method == NULL)
40 method = UI_get_default_method();
41 if (method == NULL)
42 method = UI_null();
43 ret->meth = method;
44
45 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI, ret, &ret->ex_data)) {
46 OPENSSL_free(ret);
47 return NULL;
48 }
49 return ret;
50 }
51
free_string(UI_STRING * uis)52 static void free_string(UI_STRING *uis)
53 {
54 if (uis->flags & OUT_STRING_FREEABLE) {
55 OPENSSL_free((char *)uis->out_string);
56 switch (uis->type) {
57 case UIT_BOOLEAN:
58 OPENSSL_free((char *)uis->_.boolean_data.action_desc);
59 OPENSSL_free((char *)uis->_.boolean_data.ok_chars);
60 OPENSSL_free((char *)uis->_.boolean_data.cancel_chars);
61 break;
62 case UIT_NONE:
63 case UIT_PROMPT:
64 case UIT_VERIFY:
65 case UIT_ERROR:
66 case UIT_INFO:
67 break;
68 }
69 }
70 OPENSSL_free(uis);
71 }
72
UI_free(UI * ui)73 void UI_free(UI *ui)
74 {
75 if (ui == NULL)
76 return;
77 if ((ui->flags & UI_FLAG_DUPL_DATA) != 0) {
78 ui->meth->ui_destroy_data(ui, ui->user_data);
79 }
80 sk_UI_STRING_pop_free(ui->strings, free_string);
81 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI, ui, &ui->ex_data);
82 CRYPTO_THREAD_lock_free(ui->lock);
83 OPENSSL_free(ui);
84 }
85
allocate_string_stack(UI * ui)86 static int allocate_string_stack(UI *ui)
87 {
88 if (ui->strings == NULL) {
89 ui->strings = sk_UI_STRING_new_null();
90 if (ui->strings == NULL) {
91 return -1;
92 }
93 }
94 return 0;
95 }
96
general_allocate_prompt(UI * ui,const char * prompt,int prompt_freeable,enum UI_string_types type,int input_flags,char * result_buf)97 static UI_STRING *general_allocate_prompt(UI *ui, const char *prompt,
98 int prompt_freeable,
99 enum UI_string_types type,
100 int input_flags, char *result_buf)
101 {
102 UI_STRING *ret = NULL;
103
104 if (prompt == NULL) {
105 UIerr(UI_F_GENERAL_ALLOCATE_PROMPT, ERR_R_PASSED_NULL_PARAMETER);
106 } else if ((type == UIT_PROMPT || type == UIT_VERIFY
107 || type == UIT_BOOLEAN) && result_buf == NULL) {
108 UIerr(UI_F_GENERAL_ALLOCATE_PROMPT, UI_R_NO_RESULT_BUFFER);
109 } else if ((ret = OPENSSL_malloc(sizeof(*ret))) != NULL) {
110 ret->out_string = prompt;
111 ret->flags = prompt_freeable ? OUT_STRING_FREEABLE : 0;
112 ret->input_flags = input_flags;
113 ret->type = type;
114 ret->result_buf = result_buf;
115 }
116 return ret;
117 }
118
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)119 static int general_allocate_string(UI *ui, const char *prompt,
120 int prompt_freeable,
121 enum UI_string_types type, int input_flags,
122 char *result_buf, int minsize, int maxsize,
123 const char *test_buf)
124 {
125 int ret = -1;
126 UI_STRING *s = general_allocate_prompt(ui, prompt, prompt_freeable,
127 type, input_flags, result_buf);
128
129 if (s != NULL) {
130 if (allocate_string_stack(ui) >= 0) {
131 s->_.string_data.result_minsize = minsize;
132 s->_.string_data.result_maxsize = maxsize;
133 s->_.string_data.test_buf = test_buf;
134 ret = sk_UI_STRING_push(ui->strings, s);
135 /* sk_push() returns 0 on error. Let's adapt that */
136 if (ret <= 0) {
137 ret--;
138 free_string(s);
139 }
140 } else
141 free_string(s);
142 }
143 return ret;
144 }
145
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)146 static int general_allocate_boolean(UI *ui,
147 const char *prompt,
148 const char *action_desc,
149 const char *ok_chars,
150 const char *cancel_chars,
151 int prompt_freeable,
152 enum UI_string_types type,
153 int input_flags, char *result_buf)
154 {
155 int ret = -1;
156 UI_STRING *s;
157 const char *p;
158
159 if (ok_chars == NULL) {
160 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN, ERR_R_PASSED_NULL_PARAMETER);
161 } else if (cancel_chars == NULL) {
162 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN, ERR_R_PASSED_NULL_PARAMETER);
163 } else {
164 for (p = ok_chars; *p != '\0'; p++) {
165 if (strchr(cancel_chars, *p) != NULL) {
166 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN,
167 UI_R_COMMON_OK_AND_CANCEL_CHARACTERS);
168 }
169 }
170
171 s = general_allocate_prompt(ui, prompt, prompt_freeable,
172 type, input_flags, result_buf);
173
174 if (s != NULL) {
175 if (allocate_string_stack(ui) >= 0) {
176 s->_.boolean_data.action_desc = action_desc;
177 s->_.boolean_data.ok_chars = ok_chars;
178 s->_.boolean_data.cancel_chars = cancel_chars;
179 ret = sk_UI_STRING_push(ui->strings, s);
180 /*
181 * sk_push() returns 0 on error. Let's adapt that
182 */
183 if (ret <= 0) {
184 ret--;
185 free_string(s);
186 }
187 } else
188 free_string(s);
189 }
190 }
191 return ret;
192 }
193
194 /*
195 * Returns the index to the place in the stack or -1 for error. Uses a
196 * direct reference to the prompt.
197 */
UI_add_input_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize)198 int UI_add_input_string(UI *ui, const char *prompt, int flags,
199 char *result_buf, int minsize, int maxsize)
200 {
201 return general_allocate_string(ui, prompt, 0,
202 UIT_PROMPT, flags, result_buf, minsize,
203 maxsize, NULL);
204 }
205
206 /* 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)207 int UI_dup_input_string(UI *ui, const char *prompt, int flags,
208 char *result_buf, int minsize, int maxsize)
209 {
210 char *prompt_copy = NULL;
211
212 if (prompt != NULL) {
213 prompt_copy = OPENSSL_strdup(prompt);
214 if (prompt_copy == NULL) {
215 UIerr(UI_F_UI_DUP_INPUT_STRING, ERR_R_MALLOC_FAILURE);
216 return 0;
217 }
218 }
219
220 return general_allocate_string(ui, prompt_copy, 1,
221 UIT_PROMPT, flags, result_buf, minsize,
222 maxsize, NULL);
223 }
224
UI_add_verify_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize,const char * test_buf)225 int UI_add_verify_string(UI *ui, const char *prompt, int flags,
226 char *result_buf, int minsize, int maxsize,
227 const char *test_buf)
228 {
229 return general_allocate_string(ui, prompt, 0,
230 UIT_VERIFY, flags, result_buf, minsize,
231 maxsize, test_buf);
232 }
233
UI_dup_verify_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize,const char * test_buf)234 int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
235 char *result_buf, int minsize, int maxsize,
236 const char *test_buf)
237 {
238 char *prompt_copy = NULL;
239
240 if (prompt != NULL) {
241 prompt_copy = OPENSSL_strdup(prompt);
242 if (prompt_copy == NULL) {
243 UIerr(UI_F_UI_DUP_VERIFY_STRING, ERR_R_MALLOC_FAILURE);
244 return -1;
245 }
246 }
247
248 return general_allocate_string(ui, prompt_copy, 1,
249 UIT_VERIFY, flags, result_buf, minsize,
250 maxsize, test_buf);
251 }
252
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)253 int UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc,
254 const char *ok_chars, const char *cancel_chars,
255 int flags, char *result_buf)
256 {
257 return general_allocate_boolean(ui, prompt, action_desc,
258 ok_chars, cancel_chars, 0, UIT_BOOLEAN,
259 flags, result_buf);
260 }
261
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)262 int UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc,
263 const char *ok_chars, const char *cancel_chars,
264 int flags, char *result_buf)
265 {
266 char *prompt_copy = NULL;
267 char *action_desc_copy = NULL;
268 char *ok_chars_copy = NULL;
269 char *cancel_chars_copy = NULL;
270
271 if (prompt != NULL) {
272 prompt_copy = OPENSSL_strdup(prompt);
273 if (prompt_copy == NULL) {
274 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE);
275 goto err;
276 }
277 }
278
279 if (action_desc != NULL) {
280 action_desc_copy = OPENSSL_strdup(action_desc);
281 if (action_desc_copy == NULL) {
282 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE);
283 goto err;
284 }
285 }
286
287 if (ok_chars != NULL) {
288 ok_chars_copy = OPENSSL_strdup(ok_chars);
289 if (ok_chars_copy == NULL) {
290 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE);
291 goto err;
292 }
293 }
294
295 if (cancel_chars != NULL) {
296 cancel_chars_copy = OPENSSL_strdup(cancel_chars);
297 if (cancel_chars_copy == NULL) {
298 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE);
299 goto err;
300 }
301 }
302
303 return general_allocate_boolean(ui, prompt_copy, action_desc_copy,
304 ok_chars_copy, cancel_chars_copy, 1,
305 UIT_BOOLEAN, flags, result_buf);
306 err:
307 OPENSSL_free(prompt_copy);
308 OPENSSL_free(action_desc_copy);
309 OPENSSL_free(ok_chars_copy);
310 OPENSSL_free(cancel_chars_copy);
311 return -1;
312 }
313
UI_add_info_string(UI * ui,const char * text)314 int UI_add_info_string(UI *ui, const char *text)
315 {
316 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0,
317 NULL);
318 }
319
UI_dup_info_string(UI * ui,const char * text)320 int UI_dup_info_string(UI *ui, const char *text)
321 {
322 char *text_copy = NULL;
323
324 if (text != NULL) {
325 text_copy = OPENSSL_strdup(text);
326 if (text_copy == NULL) {
327 UIerr(UI_F_UI_DUP_INFO_STRING, ERR_R_MALLOC_FAILURE);
328 return -1;
329 }
330 }
331
332 return general_allocate_string(ui, text_copy, 1, UIT_INFO, 0, NULL,
333 0, 0, NULL);
334 }
335
UI_add_error_string(UI * ui,const char * text)336 int UI_add_error_string(UI *ui, const char *text)
337 {
338 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0,
339 NULL);
340 }
341
UI_dup_error_string(UI * ui,const char * text)342 int UI_dup_error_string(UI *ui, const char *text)
343 {
344 char *text_copy = NULL;
345
346 if (text != NULL) {
347 text_copy = OPENSSL_strdup(text);
348 if (text_copy == NULL) {
349 UIerr(UI_F_UI_DUP_ERROR_STRING, ERR_R_MALLOC_FAILURE);
350 return -1;
351 }
352 }
353 return general_allocate_string(ui, text_copy, 1, UIT_ERROR, 0, NULL,
354 0, 0, NULL);
355 }
356
UI_construct_prompt(UI * ui,const char * object_desc,const char * object_name)357 char *UI_construct_prompt(UI *ui, const char *object_desc,
358 const char *object_name)
359 {
360 char *prompt = NULL;
361
362 if (ui->meth->ui_construct_prompt != NULL)
363 prompt = ui->meth->ui_construct_prompt(ui, object_desc, object_name);
364 else {
365 char prompt1[] = "Enter ";
366 char prompt2[] = " for ";
367 char prompt3[] = ":";
368 int len = 0;
369
370 if (object_desc == NULL)
371 return NULL;
372 len = sizeof(prompt1) - 1 + strlen(object_desc);
373 if (object_name != NULL)
374 len += sizeof(prompt2) - 1 + strlen(object_name);
375 len += sizeof(prompt3) - 1;
376
377 if ((prompt = OPENSSL_malloc(len + 1)) == NULL) {
378 UIerr(UI_F_UI_CONSTRUCT_PROMPT, ERR_R_MALLOC_FAILURE);
379 return NULL;
380 }
381 OPENSSL_strlcpy(prompt, prompt1, len + 1);
382 OPENSSL_strlcat(prompt, object_desc, len + 1);
383 if (object_name != NULL) {
384 OPENSSL_strlcat(prompt, prompt2, len + 1);
385 OPENSSL_strlcat(prompt, object_name, len + 1);
386 }
387 OPENSSL_strlcat(prompt, prompt3, len + 1);
388 }
389 return prompt;
390 }
391
UI_add_user_data(UI * ui,void * user_data)392 void *UI_add_user_data(UI *ui, void *user_data)
393 {
394 void *old_data = ui->user_data;
395
396 if ((ui->flags & UI_FLAG_DUPL_DATA) != 0) {
397 ui->meth->ui_destroy_data(ui, old_data);
398 old_data = NULL;
399 }
400 ui->user_data = user_data;
401 ui->flags &= ~UI_FLAG_DUPL_DATA;
402 return old_data;
403 }
404
UI_dup_user_data(UI * ui,void * user_data)405 int UI_dup_user_data(UI *ui, void *user_data)
406 {
407 void *duplicate = NULL;
408
409 if (ui->meth->ui_duplicate_data == NULL
410 || ui->meth->ui_destroy_data == NULL) {
411 UIerr(UI_F_UI_DUP_USER_DATA, UI_R_USER_DATA_DUPLICATION_UNSUPPORTED);
412 return -1;
413 }
414
415 duplicate = ui->meth->ui_duplicate_data(ui, user_data);
416 if (duplicate == NULL) {
417 UIerr(UI_F_UI_DUP_USER_DATA, ERR_R_MALLOC_FAILURE);
418 return -1;
419 }
420
421 (void)UI_add_user_data(ui, duplicate);
422 ui->flags |= UI_FLAG_DUPL_DATA;
423
424 return 0;
425 }
426
UI_get0_user_data(UI * ui)427 void *UI_get0_user_data(UI *ui)
428 {
429 return ui->user_data;
430 }
431
UI_get0_result(UI * ui,int i)432 const char *UI_get0_result(UI *ui, int i)
433 {
434 if (i < 0) {
435 UIerr(UI_F_UI_GET0_RESULT, UI_R_INDEX_TOO_SMALL);
436 return NULL;
437 }
438 if (i >= sk_UI_STRING_num(ui->strings)) {
439 UIerr(UI_F_UI_GET0_RESULT, UI_R_INDEX_TOO_LARGE);
440 return NULL;
441 }
442 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i));
443 }
444
UI_get_result_length(UI * ui,int i)445 int UI_get_result_length(UI *ui, int i)
446 {
447 if (i < 0) {
448 UIerr(UI_F_UI_GET_RESULT_LENGTH, UI_R_INDEX_TOO_SMALL);
449 return -1;
450 }
451 if (i >= sk_UI_STRING_num(ui->strings)) {
452 UIerr(UI_F_UI_GET_RESULT_LENGTH, UI_R_INDEX_TOO_LARGE);
453 return -1;
454 }
455 return UI_get_result_string_length(sk_UI_STRING_value(ui->strings, i));
456 }
457
print_error(const char * str,size_t len,UI * ui)458 static int print_error(const char *str, size_t len, UI *ui)
459 {
460 UI_STRING uis;
461
462 memset(&uis, 0, sizeof(uis));
463 uis.type = UIT_ERROR;
464 uis.out_string = str;
465
466 if (ui->meth->ui_write_string != NULL
467 && ui->meth->ui_write_string(ui, &uis) <= 0)
468 return -1;
469 return 0;
470 }
471
UI_process(UI * ui)472 int UI_process(UI *ui)
473 {
474 int i, ok = 0;
475 const char *state = "processing";
476
477 if (ui->meth->ui_open_session != NULL
478 && ui->meth->ui_open_session(ui) <= 0) {
479 state = "opening session";
480 ok = -1;
481 goto err;
482 }
483
484 if (ui->flags & UI_FLAG_PRINT_ERRORS)
485 ERR_print_errors_cb((int (*)(const char *, size_t, void *))
486 print_error, (void *)ui);
487
488 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) {
489 if (ui->meth->ui_write_string != NULL
490 && (ui->meth->ui_write_string(ui,
491 sk_UI_STRING_value(ui->strings, i))
492 <= 0))
493 {
494 state = "writing strings";
495 ok = -1;
496 goto err;
497 }
498 }
499
500 if (ui->meth->ui_flush != NULL)
501 switch (ui->meth->ui_flush(ui)) {
502 case -1: /* Interrupt/Cancel/something... */
503 ui->flags &= ~UI_FLAG_REDOABLE;
504 ok = -2;
505 goto err;
506 case 0: /* Errors */
507 state = "flushing";
508 ok = -1;
509 goto err;
510 default: /* Success */
511 ok = 0;
512 break;
513 }
514
515 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) {
516 if (ui->meth->ui_read_string != NULL) {
517 switch (ui->meth->ui_read_string(ui,
518 sk_UI_STRING_value(ui->strings,
519 i))) {
520 case -1: /* Interrupt/Cancel/something... */
521 ui->flags &= ~UI_FLAG_REDOABLE;
522 ok = -2;
523 goto err;
524 case 0: /* Errors */
525 state = "reading strings";
526 ok = -1;
527 goto err;
528 default: /* Success */
529 ok = 0;
530 break;
531 }
532 } else {
533 ui->flags &= ~UI_FLAG_REDOABLE;
534 ok = -2;
535 goto err;
536 }
537 }
538
539 state = NULL;
540 err:
541 if (ui->meth->ui_close_session != NULL
542 && ui->meth->ui_close_session(ui) <= 0) {
543 if (state == NULL)
544 state = "closing session";
545 ok = -1;
546 }
547
548 if (ok == -1) {
549 UIerr(UI_F_UI_PROCESS, UI_R_PROCESSING_ERROR);
550 ERR_add_error_data(2, "while ", state);
551 }
552 return ok;
553 }
554
UI_ctrl(UI * ui,int cmd,long i,void * p,void (* f)(void))555 int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void))
556 {
557 if (ui == NULL) {
558 UIerr(UI_F_UI_CTRL, ERR_R_PASSED_NULL_PARAMETER);
559 return -1;
560 }
561 switch (cmd) {
562 case UI_CTRL_PRINT_ERRORS:
563 {
564 int save_flag = ! !(ui->flags & UI_FLAG_PRINT_ERRORS);
565 if (i)
566 ui->flags |= UI_FLAG_PRINT_ERRORS;
567 else
568 ui->flags &= ~UI_FLAG_PRINT_ERRORS;
569 return save_flag;
570 }
571 case UI_CTRL_IS_REDOABLE:
572 return ! !(ui->flags & UI_FLAG_REDOABLE);
573 default:
574 break;
575 }
576 UIerr(UI_F_UI_CTRL, UI_R_UNKNOWN_CONTROL_COMMAND);
577 return -1;
578 }
579
UI_set_ex_data(UI * r,int idx,void * arg)580 int UI_set_ex_data(UI *r, int idx, void *arg)
581 {
582 return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
583 }
584
UI_get_ex_data(UI * r,int idx)585 void *UI_get_ex_data(UI *r, int idx)
586 {
587 return CRYPTO_get_ex_data(&r->ex_data, idx);
588 }
589
UI_get_method(UI * ui)590 const UI_METHOD *UI_get_method(UI *ui)
591 {
592 return ui->meth;
593 }
594
UI_set_method(UI * ui,const UI_METHOD * meth)595 const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth)
596 {
597 ui->meth = meth;
598 return ui->meth;
599 }
600
UI_create_method(const char * name)601 UI_METHOD *UI_create_method(const char *name)
602 {
603 UI_METHOD *ui_method = NULL;
604
605 if ((ui_method = OPENSSL_zalloc(sizeof(*ui_method))) == NULL
606 || (ui_method->name = OPENSSL_strdup(name)) == NULL
607 || !CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
608 &ui_method->ex_data)) {
609 if (ui_method)
610 OPENSSL_free(ui_method->name);
611 OPENSSL_free(ui_method);
612 UIerr(UI_F_UI_CREATE_METHOD, ERR_R_MALLOC_FAILURE);
613 return NULL;
614 }
615 return ui_method;
616 }
617
618 /*
619 * BIG FSCKING WARNING!!!! If you use this on a statically allocated method
620 * (that is, it hasn't been allocated using UI_create_method(), you deserve
621 * anything Murphy can throw at you and more! You have been warned.
622 */
UI_destroy_method(UI_METHOD * ui_method)623 void UI_destroy_method(UI_METHOD *ui_method)
624 {
625 if (ui_method == NULL)
626 return;
627 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
628 &ui_method->ex_data);
629 OPENSSL_free(ui_method->name);
630 ui_method->name = NULL;
631 OPENSSL_free(ui_method);
632 }
633
UI_method_set_opener(UI_METHOD * method,int (* opener)(UI * ui))634 int UI_method_set_opener(UI_METHOD *method, int (*opener) (UI *ui))
635 {
636 if (method != NULL) {
637 method->ui_open_session = opener;
638 return 0;
639 }
640 return -1;
641 }
642
UI_method_set_writer(UI_METHOD * method,int (* writer)(UI * ui,UI_STRING * uis))643 int UI_method_set_writer(UI_METHOD *method,
644 int (*writer) (UI *ui, UI_STRING *uis))
645 {
646 if (method != NULL) {
647 method->ui_write_string = writer;
648 return 0;
649 }
650 return -1;
651 }
652
UI_method_set_flusher(UI_METHOD * method,int (* flusher)(UI * ui))653 int UI_method_set_flusher(UI_METHOD *method, int (*flusher) (UI *ui))
654 {
655 if (method != NULL) {
656 method->ui_flush = flusher;
657 return 0;
658 }
659 return -1;
660 }
661
UI_method_set_reader(UI_METHOD * method,int (* reader)(UI * ui,UI_STRING * uis))662 int UI_method_set_reader(UI_METHOD *method,
663 int (*reader) (UI *ui, UI_STRING *uis))
664 {
665 if (method != NULL) {
666 method->ui_read_string = reader;
667 return 0;
668 }
669 return -1;
670 }
671
UI_method_set_closer(UI_METHOD * method,int (* closer)(UI * ui))672 int UI_method_set_closer(UI_METHOD *method, int (*closer) (UI *ui))
673 {
674 if (method != NULL) {
675 method->ui_close_session = closer;
676 return 0;
677 }
678 return -1;
679 }
680
UI_method_set_data_duplicator(UI_METHOD * method,void * (* duplicator)(UI * ui,void * ui_data),void (* destructor)(UI * ui,void * ui_data))681 int UI_method_set_data_duplicator(UI_METHOD *method,
682 void *(*duplicator) (UI *ui, void *ui_data),
683 void (*destructor)(UI *ui, void *ui_data))
684 {
685 if (method != NULL) {
686 method->ui_duplicate_data = duplicator;
687 method->ui_destroy_data = destructor;
688 return 0;
689 }
690 return -1;
691 }
692
UI_method_set_prompt_constructor(UI_METHOD * method,char * (* prompt_constructor)(UI * ui,const char * object_desc,const char * object_name))693 int UI_method_set_prompt_constructor(UI_METHOD *method,
694 char *(*prompt_constructor) (UI *ui,
695 const char
696 *object_desc,
697 const char
698 *object_name))
699 {
700 if (method != NULL) {
701 method->ui_construct_prompt = prompt_constructor;
702 return 0;
703 }
704 return -1;
705 }
706
UI_method_set_ex_data(UI_METHOD * method,int idx,void * data)707 int UI_method_set_ex_data(UI_METHOD *method, int idx, void *data)
708 {
709 return CRYPTO_set_ex_data(&method->ex_data, idx, data);
710 }
711
UI_method_get_opener(const UI_METHOD * method)712 int (*UI_method_get_opener(const UI_METHOD *method)) (UI *)
713 {
714 if (method != NULL)
715 return method->ui_open_session;
716 return NULL;
717 }
718
UI_method_get_writer(const UI_METHOD * method)719 int (*UI_method_get_writer(const UI_METHOD *method)) (UI *, UI_STRING *)
720 {
721 if (method != NULL)
722 return method->ui_write_string;
723 return NULL;
724 }
725
UI_method_get_flusher(const UI_METHOD * method)726 int (*UI_method_get_flusher(const UI_METHOD *method)) (UI *)
727 {
728 if (method != NULL)
729 return method->ui_flush;
730 return NULL;
731 }
732
UI_method_get_reader(const UI_METHOD * method)733 int (*UI_method_get_reader(const UI_METHOD *method)) (UI *, UI_STRING *)
734 {
735 if (method != NULL)
736 return method->ui_read_string;
737 return NULL;
738 }
739
UI_method_get_closer(const UI_METHOD * method)740 int (*UI_method_get_closer(const UI_METHOD *method)) (UI *)
741 {
742 if (method != NULL)
743 return method->ui_close_session;
744 return NULL;
745 }
746
UI_method_get_prompt_constructor(const UI_METHOD * method)747 char *(*UI_method_get_prompt_constructor(const UI_METHOD *method))
748 (UI *, const char *, const char *)
749 {
750 if (method != NULL)
751 return method->ui_construct_prompt;
752 return NULL;
753 }
754
UI_method_get_data_duplicator(const UI_METHOD * method)755 void *(*UI_method_get_data_duplicator(const UI_METHOD *method)) (UI *, void *)
756 {
757 if (method != NULL)
758 return method->ui_duplicate_data;
759 return NULL;
760 }
761
UI_method_get_data_destructor(const UI_METHOD * method)762 void (*UI_method_get_data_destructor(const UI_METHOD *method)) (UI *, void *)
763 {
764 if (method != NULL)
765 return method->ui_destroy_data;
766 return NULL;
767 }
768
UI_method_get_ex_data(const UI_METHOD * method,int idx)769 const void *UI_method_get_ex_data(const UI_METHOD *method, int idx)
770 {
771 return CRYPTO_get_ex_data(&method->ex_data, idx);
772 }
773
UI_get_string_type(UI_STRING * uis)774 enum UI_string_types UI_get_string_type(UI_STRING *uis)
775 {
776 return uis->type;
777 }
778
UI_get_input_flags(UI_STRING * uis)779 int UI_get_input_flags(UI_STRING *uis)
780 {
781 return uis->input_flags;
782 }
783
UI_get0_output_string(UI_STRING * uis)784 const char *UI_get0_output_string(UI_STRING *uis)
785 {
786 return uis->out_string;
787 }
788
UI_get0_action_string(UI_STRING * uis)789 const char *UI_get0_action_string(UI_STRING *uis)
790 {
791 switch (uis->type) {
792 case UIT_BOOLEAN:
793 return uis->_.boolean_data.action_desc;
794 case UIT_PROMPT:
795 case UIT_NONE:
796 case UIT_VERIFY:
797 case UIT_INFO:
798 case UIT_ERROR:
799 break;
800 }
801 return NULL;
802 }
803
UI_get0_result_string(UI_STRING * uis)804 const char *UI_get0_result_string(UI_STRING *uis)
805 {
806 switch (uis->type) {
807 case UIT_PROMPT:
808 case UIT_VERIFY:
809 return uis->result_buf;
810 case UIT_NONE:
811 case UIT_BOOLEAN:
812 case UIT_INFO:
813 case UIT_ERROR:
814 break;
815 }
816 return NULL;
817 }
818
UI_get_result_string_length(UI_STRING * uis)819 int UI_get_result_string_length(UI_STRING *uis)
820 {
821 switch (uis->type) {
822 case UIT_PROMPT:
823 case UIT_VERIFY:
824 return uis->result_len;
825 case UIT_NONE:
826 case UIT_BOOLEAN:
827 case UIT_INFO:
828 case UIT_ERROR:
829 break;
830 }
831 return -1;
832 }
833
UI_get0_test_string(UI_STRING * uis)834 const char *UI_get0_test_string(UI_STRING *uis)
835 {
836 switch (uis->type) {
837 case UIT_VERIFY:
838 return uis->_.string_data.test_buf;
839 case UIT_NONE:
840 case UIT_BOOLEAN:
841 case UIT_INFO:
842 case UIT_ERROR:
843 case UIT_PROMPT:
844 break;
845 }
846 return NULL;
847 }
848
UI_get_result_minsize(UI_STRING * uis)849 int UI_get_result_minsize(UI_STRING *uis)
850 {
851 switch (uis->type) {
852 case UIT_PROMPT:
853 case UIT_VERIFY:
854 return uis->_.string_data.result_minsize;
855 case UIT_NONE:
856 case UIT_INFO:
857 case UIT_ERROR:
858 case UIT_BOOLEAN:
859 break;
860 }
861 return -1;
862 }
863
UI_get_result_maxsize(UI_STRING * uis)864 int UI_get_result_maxsize(UI_STRING *uis)
865 {
866 switch (uis->type) {
867 case UIT_PROMPT:
868 case UIT_VERIFY:
869 return uis->_.string_data.result_maxsize;
870 case UIT_NONE:
871 case UIT_INFO:
872 case UIT_ERROR:
873 case UIT_BOOLEAN:
874 break;
875 }
876 return -1;
877 }
878
UI_set_result(UI * ui,UI_STRING * uis,const char * result)879 int UI_set_result(UI *ui, UI_STRING *uis, const char *result)
880 {
881 #if 0
882 /*
883 * This is placed here solely to preserve UI_F_UI_SET_RESULT
884 * To be removed for OpenSSL 1.2.0
885 */
886 UIerr(UI_F_UI_SET_RESULT, ERR_R_DISABLED);
887 #endif
888 return UI_set_result_ex(ui, uis, result, strlen(result));
889 }
890
UI_set_result_ex(UI * ui,UI_STRING * uis,const char * result,int len)891 int UI_set_result_ex(UI *ui, UI_STRING *uis, const char *result, int len)
892 {
893 ui->flags &= ~UI_FLAG_REDOABLE;
894
895 switch (uis->type) {
896 case UIT_PROMPT:
897 case UIT_VERIFY:
898 {
899 char number1[DECIMAL_SIZE(uis->_.string_data.result_minsize) + 1];
900 char number2[DECIMAL_SIZE(uis->_.string_data.result_maxsize) + 1];
901
902 BIO_snprintf(number1, sizeof(number1), "%d",
903 uis->_.string_data.result_minsize);
904 BIO_snprintf(number2, sizeof(number2), "%d",
905 uis->_.string_data.result_maxsize);
906
907 if (len < uis->_.string_data.result_minsize) {
908 ui->flags |= UI_FLAG_REDOABLE;
909 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_RESULT_TOO_SMALL);
910 ERR_add_error_data(5, "You must type in ",
911 number1, " to ", number2, " characters");
912 return -1;
913 }
914 if (len > uis->_.string_data.result_maxsize) {
915 ui->flags |= UI_FLAG_REDOABLE;
916 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_RESULT_TOO_LARGE);
917 ERR_add_error_data(5, "You must type in ",
918 number1, " to ", number2, " characters");
919 return -1;
920 }
921 }
922
923 if (uis->result_buf == NULL) {
924 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_NO_RESULT_BUFFER);
925 return -1;
926 }
927
928 memcpy(uis->result_buf, result, len);
929 if (len <= uis->_.string_data.result_maxsize)
930 uis->result_buf[len] = '\0';
931 uis->result_len = len;
932 break;
933 case UIT_BOOLEAN:
934 {
935 const char *p;
936
937 if (uis->result_buf == NULL) {
938 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_NO_RESULT_BUFFER);
939 return -1;
940 }
941
942 uis->result_buf[0] = '\0';
943 for (p = result; *p; p++) {
944 if (strchr(uis->_.boolean_data.ok_chars, *p)) {
945 uis->result_buf[0] = uis->_.boolean_data.ok_chars[0];
946 break;
947 }
948 if (strchr(uis->_.boolean_data.cancel_chars, *p)) {
949 uis->result_buf[0] = uis->_.boolean_data.cancel_chars[0];
950 break;
951 }
952 }
953 }
954 case UIT_NONE:
955 case UIT_INFO:
956 case UIT_ERROR:
957 break;
958 }
959 return 0;
960 }
961