1 /*
2 * Copyright 2001-2021 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 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
29 return NULL;
30 }
31
32 ret->lock = CRYPTO_THREAD_lock_new();
33 if (ret->lock == NULL) {
34 ERR_raise(ERR_LIB_UI, 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 UI_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 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
106 } else if ((type == UIT_PROMPT || type == UIT_VERIFY
107 || type == UIT_BOOLEAN) && result_buf == NULL) {
108 ERR_raise(ERR_LIB_UI, UI_R_NO_RESULT_BUFFER);
109 } else if ((ret = OPENSSL_zalloc(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 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
161 } else if (cancel_chars == NULL) {
162 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
163 } else {
164 for (p = ok_chars; *p != '\0'; p++) {
165 if (strchr(cancel_chars, *p) != NULL) {
166 ERR_raise(ERR_LIB_UI, UI_R_COMMON_OK_AND_CANCEL_CHARACTERS);
167 }
168 }
169
170 s = general_allocate_prompt(ui, prompt, prompt_freeable,
171 type, input_flags, result_buf);
172
173 if (s != NULL) {
174 if (allocate_string_stack(ui) >= 0) {
175 s->_.boolean_data.action_desc = action_desc;
176 s->_.boolean_data.ok_chars = ok_chars;
177 s->_.boolean_data.cancel_chars = cancel_chars;
178 ret = sk_UI_STRING_push(ui->strings, s);
179 /*
180 * sk_push() returns 0 on error. Let's adapt that
181 */
182 if (ret <= 0) {
183 ret--;
184 free_string(s);
185 }
186 } else
187 free_string(s);
188 }
189 }
190 return ret;
191 }
192
193 /*
194 * Returns the index to the place in the stack or -1 for error. Uses a
195 * direct reference to the prompt.
196 */
UI_add_input_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize)197 int UI_add_input_string(UI *ui, const char *prompt, int flags,
198 char *result_buf, int minsize, int maxsize)
199 {
200 return general_allocate_string(ui, prompt, 0,
201 UIT_PROMPT, flags, result_buf, minsize,
202 maxsize, NULL);
203 }
204
205 /* 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)206 int UI_dup_input_string(UI *ui, const char *prompt, int flags,
207 char *result_buf, int minsize, int maxsize)
208 {
209 char *prompt_copy = NULL;
210
211 if (prompt != NULL) {
212 prompt_copy = OPENSSL_strdup(prompt);
213 if (prompt_copy == NULL) {
214 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
215 return 0;
216 }
217 }
218
219 return general_allocate_string(ui, prompt_copy, 1,
220 UIT_PROMPT, flags, result_buf, minsize,
221 maxsize, NULL);
222 }
223
UI_add_verify_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize,const char * test_buf)224 int UI_add_verify_string(UI *ui, const char *prompt, int flags,
225 char *result_buf, int minsize, int maxsize,
226 const char *test_buf)
227 {
228 return general_allocate_string(ui, prompt, 0,
229 UIT_VERIFY, flags, result_buf, minsize,
230 maxsize, test_buf);
231 }
232
UI_dup_verify_string(UI * ui,const char * prompt,int flags,char * result_buf,int minsize,int maxsize,const char * test_buf)233 int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
234 char *result_buf, int minsize, int maxsize,
235 const char *test_buf)
236 {
237 char *prompt_copy = NULL;
238
239 if (prompt != NULL) {
240 prompt_copy = OPENSSL_strdup(prompt);
241 if (prompt_copy == NULL) {
242 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
243 return -1;
244 }
245 }
246
247 return general_allocate_string(ui, prompt_copy, 1,
248 UIT_VERIFY, flags, result_buf, minsize,
249 maxsize, test_buf);
250 }
251
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)252 int UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc,
253 const char *ok_chars, const char *cancel_chars,
254 int flags, char *result_buf)
255 {
256 return general_allocate_boolean(ui, prompt, action_desc,
257 ok_chars, cancel_chars, 0, UIT_BOOLEAN,
258 flags, result_buf);
259 }
260
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)261 int UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc,
262 const char *ok_chars, const char *cancel_chars,
263 int flags, char *result_buf)
264 {
265 char *prompt_copy = NULL;
266 char *action_desc_copy = NULL;
267 char *ok_chars_copy = NULL;
268 char *cancel_chars_copy = NULL;
269
270 if (prompt != NULL) {
271 prompt_copy = OPENSSL_strdup(prompt);
272 if (prompt_copy == NULL) {
273 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
274 goto err;
275 }
276 }
277
278 if (action_desc != NULL) {
279 action_desc_copy = OPENSSL_strdup(action_desc);
280 if (action_desc_copy == NULL) {
281 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
282 goto err;
283 }
284 }
285
286 if (ok_chars != NULL) {
287 ok_chars_copy = OPENSSL_strdup(ok_chars);
288 if (ok_chars_copy == NULL) {
289 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
290 goto err;
291 }
292 }
293
294 if (cancel_chars != NULL) {
295 cancel_chars_copy = OPENSSL_strdup(cancel_chars);
296 if (cancel_chars_copy == NULL) {
297 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
298 goto err;
299 }
300 }
301
302 return general_allocate_boolean(ui, prompt_copy, action_desc_copy,
303 ok_chars_copy, cancel_chars_copy, 1,
304 UIT_BOOLEAN, flags, result_buf);
305 err:
306 OPENSSL_free(prompt_copy);
307 OPENSSL_free(action_desc_copy);
308 OPENSSL_free(ok_chars_copy);
309 OPENSSL_free(cancel_chars_copy);
310 return -1;
311 }
312
UI_add_info_string(UI * ui,const char * text)313 int UI_add_info_string(UI *ui, const char *text)
314 {
315 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0,
316 NULL);
317 }
318
UI_dup_info_string(UI * ui,const char * text)319 int UI_dup_info_string(UI *ui, const char *text)
320 {
321 char *text_copy = NULL;
322
323 if (text != NULL) {
324 text_copy = OPENSSL_strdup(text);
325 if (text_copy == NULL) {
326 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
327 return -1;
328 }
329 }
330
331 return general_allocate_string(ui, text_copy, 1, UIT_INFO, 0, NULL,
332 0, 0, NULL);
333 }
334
UI_add_error_string(UI * ui,const char * text)335 int UI_add_error_string(UI *ui, const char *text)
336 {
337 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0,
338 NULL);
339 }
340
UI_dup_error_string(UI * ui,const char * text)341 int UI_dup_error_string(UI *ui, const char *text)
342 {
343 char *text_copy = NULL;
344
345 if (text != NULL) {
346 text_copy = OPENSSL_strdup(text);
347 if (text_copy == NULL) {
348 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
349 return -1;
350 }
351 }
352 return general_allocate_string(ui, text_copy, 1, UIT_ERROR, 0, NULL,
353 0, 0, NULL);
354 }
355
UI_construct_prompt(UI * ui,const char * phrase_desc,const char * object_name)356 char *UI_construct_prompt(UI *ui, const char *phrase_desc,
357 const char *object_name)
358 {
359 char *prompt = NULL;
360
361 if (ui != NULL && ui->meth != NULL && ui->meth->ui_construct_prompt != NULL)
362 prompt = ui->meth->ui_construct_prompt(ui, phrase_desc, object_name);
363 else {
364 char prompt1[] = "Enter ";
365 char prompt2[] = " for ";
366 char prompt3[] = ":";
367 int len = 0;
368
369 if (phrase_desc == NULL)
370 return NULL;
371 len = sizeof(prompt1) - 1 + strlen(phrase_desc);
372 if (object_name != NULL)
373 len += sizeof(prompt2) - 1 + strlen(object_name);
374 len += sizeof(prompt3) - 1;
375
376 if ((prompt = OPENSSL_malloc(len + 1)) == NULL) {
377 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
378 return NULL;
379 }
380 OPENSSL_strlcpy(prompt, prompt1, len + 1);
381 OPENSSL_strlcat(prompt, phrase_desc, len + 1);
382 if (object_name != NULL) {
383 OPENSSL_strlcat(prompt, prompt2, len + 1);
384 OPENSSL_strlcat(prompt, object_name, len + 1);
385 }
386 OPENSSL_strlcat(prompt, prompt3, len + 1);
387 }
388 return prompt;
389 }
390
UI_add_user_data(UI * ui,void * user_data)391 void *UI_add_user_data(UI *ui, void *user_data)
392 {
393 void *old_data = ui->user_data;
394
395 if ((ui->flags & UI_FLAG_DUPL_DATA) != 0) {
396 ui->meth->ui_destroy_data(ui, old_data);
397 old_data = NULL;
398 }
399 ui->user_data = user_data;
400 ui->flags &= ~UI_FLAG_DUPL_DATA;
401 return old_data;
402 }
403
UI_dup_user_data(UI * ui,void * user_data)404 int UI_dup_user_data(UI *ui, void *user_data)
405 {
406 void *duplicate = NULL;
407
408 if (ui->meth->ui_duplicate_data == NULL
409 || ui->meth->ui_destroy_data == NULL) {
410 ERR_raise(ERR_LIB_UI, UI_R_USER_DATA_DUPLICATION_UNSUPPORTED);
411 return -1;
412 }
413
414 duplicate = ui->meth->ui_duplicate_data(ui, user_data);
415 if (duplicate == NULL) {
416 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
417 return -1;
418 }
419
420 (void)UI_add_user_data(ui, duplicate);
421 ui->flags |= UI_FLAG_DUPL_DATA;
422
423 return 0;
424 }
425
UI_get0_user_data(UI * ui)426 void *UI_get0_user_data(UI *ui)
427 {
428 return ui->user_data;
429 }
430
UI_get0_result(UI * ui,int i)431 const char *UI_get0_result(UI *ui, int i)
432 {
433 if (i < 0) {
434 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_SMALL);
435 return NULL;
436 }
437 if (i >= sk_UI_STRING_num(ui->strings)) {
438 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_LARGE);
439 return NULL;
440 }
441 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i));
442 }
443
UI_get_result_length(UI * ui,int i)444 int UI_get_result_length(UI *ui, int i)
445 {
446 if (i < 0) {
447 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_SMALL);
448 return -1;
449 }
450 if (i >= sk_UI_STRING_num(ui->strings)) {
451 ERR_raise(ERR_LIB_UI, UI_R_INDEX_TOO_LARGE);
452 return -1;
453 }
454 return UI_get_result_string_length(sk_UI_STRING_value(ui->strings, i));
455 }
456
print_error(const char * str,size_t len,UI * ui)457 static int print_error(const char *str, size_t len, UI *ui)
458 {
459 UI_STRING uis;
460
461 memset(&uis, 0, sizeof(uis));
462 uis.type = UIT_ERROR;
463 uis.out_string = str;
464
465 if (ui->meth->ui_write_string != NULL
466 && ui->meth->ui_write_string(ui, &uis) <= 0)
467 return -1;
468 return 0;
469 }
470
UI_process(UI * ui)471 int UI_process(UI *ui)
472 {
473 int i, ok = 0;
474 const char *state = "processing";
475
476 if (ui->meth->ui_open_session != NULL
477 && ui->meth->ui_open_session(ui) <= 0) {
478 state = "opening session";
479 ok = -1;
480 goto err;
481 }
482
483 if (ui->flags & UI_FLAG_PRINT_ERRORS)
484 ERR_print_errors_cb((int (*)(const char *, size_t, void *))
485 print_error, (void *)ui);
486
487 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) {
488 if (ui->meth->ui_write_string != NULL
489 && (ui->meth->ui_write_string(ui,
490 sk_UI_STRING_value(ui->strings, i))
491 <= 0))
492 {
493 state = "writing strings";
494 ok = -1;
495 goto err;
496 }
497 }
498
499 if (ui->meth->ui_flush != NULL)
500 switch (ui->meth->ui_flush(ui)) {
501 case -1: /* Interrupt/Cancel/something... */
502 ui->flags &= ~UI_FLAG_REDOABLE;
503 ok = -2;
504 goto err;
505 case 0: /* Errors */
506 state = "flushing";
507 ok = -1;
508 goto err;
509 default: /* Success */
510 ok = 0;
511 break;
512 }
513
514 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) {
515 if (ui->meth->ui_read_string != NULL) {
516 switch (ui->meth->ui_read_string(ui,
517 sk_UI_STRING_value(ui->strings,
518 i))) {
519 case -1: /* Interrupt/Cancel/something... */
520 ui->flags &= ~UI_FLAG_REDOABLE;
521 ok = -2;
522 goto err;
523 case 0: /* Errors */
524 state = "reading strings";
525 ok = -1;
526 goto err;
527 default: /* Success */
528 ok = 0;
529 break;
530 }
531 }
532 }
533
534 state = NULL;
535 err:
536 if (ui->meth->ui_close_session != NULL
537 && ui->meth->ui_close_session(ui) <= 0) {
538 if (state == NULL)
539 state = "closing session";
540 ok = -1;
541 }
542
543 if (ok == -1)
544 ERR_raise_data(ERR_LIB_UI, UI_R_PROCESSING_ERROR, "while %s", state);
545 return ok;
546 }
547
UI_ctrl(UI * ui,int cmd,long i,void * p,void (* f)(void))548 int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void))
549 {
550 if (ui == NULL) {
551 ERR_raise(ERR_LIB_UI, ERR_R_PASSED_NULL_PARAMETER);
552 return -1;
553 }
554 switch (cmd) {
555 case UI_CTRL_PRINT_ERRORS:
556 {
557 int save_flag = ! !(ui->flags & UI_FLAG_PRINT_ERRORS);
558 if (i)
559 ui->flags |= UI_FLAG_PRINT_ERRORS;
560 else
561 ui->flags &= ~UI_FLAG_PRINT_ERRORS;
562 return save_flag;
563 }
564 case UI_CTRL_IS_REDOABLE:
565 return ! !(ui->flags & UI_FLAG_REDOABLE);
566 default:
567 break;
568 }
569 ERR_raise(ERR_LIB_UI, UI_R_UNKNOWN_CONTROL_COMMAND);
570 return -1;
571 }
572
UI_set_ex_data(UI * r,int idx,void * arg)573 int UI_set_ex_data(UI *r, int idx, void *arg)
574 {
575 return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
576 }
577
UI_get_ex_data(const UI * r,int idx)578 void *UI_get_ex_data(const UI *r, int idx)
579 {
580 return CRYPTO_get_ex_data(&r->ex_data, idx);
581 }
582
UI_get_method(UI * ui)583 const UI_METHOD *UI_get_method(UI *ui)
584 {
585 return ui->meth;
586 }
587
UI_set_method(UI * ui,const UI_METHOD * meth)588 const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth)
589 {
590 ui->meth = meth;
591 return ui->meth;
592 }
593
UI_create_method(const char * name)594 UI_METHOD *UI_create_method(const char *name)
595 {
596 UI_METHOD *ui_method = NULL;
597
598 if ((ui_method = OPENSSL_zalloc(sizeof(*ui_method))) == NULL
599 || (ui_method->name = OPENSSL_strdup(name)) == NULL
600 || !CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
601 &ui_method->ex_data)) {
602 if (ui_method)
603 OPENSSL_free(ui_method->name);
604 OPENSSL_free(ui_method);
605 ERR_raise(ERR_LIB_UI, ERR_R_MALLOC_FAILURE);
606 return NULL;
607 }
608 return ui_method;
609 }
610
611 /*
612 * BIG FSCKING WARNING!!!! If you use this on a statically allocated method
613 * (that is, it hasn't been allocated using UI_create_method(), you deserve
614 * anything Murphy can throw at you and more! You have been warned.
615 */
UI_destroy_method(UI_METHOD * ui_method)616 void UI_destroy_method(UI_METHOD *ui_method)
617 {
618 if (ui_method == NULL)
619 return;
620 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
621 &ui_method->ex_data);
622 OPENSSL_free(ui_method->name);
623 ui_method->name = NULL;
624 OPENSSL_free(ui_method);
625 }
626
UI_method_set_opener(UI_METHOD * method,int (* opener)(UI * ui))627 int UI_method_set_opener(UI_METHOD *method, int (*opener) (UI *ui))
628 {
629 if (method != NULL) {
630 method->ui_open_session = opener;
631 return 0;
632 }
633 return -1;
634 }
635
UI_method_set_writer(UI_METHOD * method,int (* writer)(UI * ui,UI_STRING * uis))636 int UI_method_set_writer(UI_METHOD *method,
637 int (*writer) (UI *ui, UI_STRING *uis))
638 {
639 if (method != NULL) {
640 method->ui_write_string = writer;
641 return 0;
642 }
643 return -1;
644 }
645
UI_method_set_flusher(UI_METHOD * method,int (* flusher)(UI * ui))646 int UI_method_set_flusher(UI_METHOD *method, int (*flusher) (UI *ui))
647 {
648 if (method != NULL) {
649 method->ui_flush = flusher;
650 return 0;
651 }
652 return -1;
653 }
654
UI_method_set_reader(UI_METHOD * method,int (* reader)(UI * ui,UI_STRING * uis))655 int UI_method_set_reader(UI_METHOD *method,
656 int (*reader) (UI *ui, UI_STRING *uis))
657 {
658 if (method != NULL) {
659 method->ui_read_string = reader;
660 return 0;
661 }
662 return -1;
663 }
664
UI_method_set_closer(UI_METHOD * method,int (* closer)(UI * ui))665 int UI_method_set_closer(UI_METHOD *method, int (*closer) (UI *ui))
666 {
667 if (method != NULL) {
668 method->ui_close_session = closer;
669 return 0;
670 }
671 return -1;
672 }
673
UI_method_set_data_duplicator(UI_METHOD * method,void * (* duplicator)(UI * ui,void * ui_data),void (* destructor)(UI * ui,void * ui_data))674 int UI_method_set_data_duplicator(UI_METHOD *method,
675 void *(*duplicator) (UI *ui, void *ui_data),
676 void (*destructor)(UI *ui, void *ui_data))
677 {
678 if (method != NULL) {
679 method->ui_duplicate_data = duplicator;
680 method->ui_destroy_data = destructor;
681 return 0;
682 }
683 return -1;
684 }
685
UI_method_set_prompt_constructor(UI_METHOD * method,char * (* prompt_constructor)(UI * ui,const char *,const char *))686 int UI_method_set_prompt_constructor(UI_METHOD *method,
687 char *(*prompt_constructor) (UI *ui,
688 const char *,
689 const char *))
690 {
691 if (method != NULL) {
692 method->ui_construct_prompt = prompt_constructor;
693 return 0;
694 }
695 return -1;
696 }
697
UI_method_set_ex_data(UI_METHOD * method,int idx,void * data)698 int UI_method_set_ex_data(UI_METHOD *method, int idx, void *data)
699 {
700 return CRYPTO_set_ex_data(&method->ex_data, idx, data);
701 }
702
UI_method_get_opener(const UI_METHOD * method)703 int (*UI_method_get_opener(const UI_METHOD *method)) (UI *)
704 {
705 if (method != NULL)
706 return method->ui_open_session;
707 return NULL;
708 }
709
UI_method_get_writer(const UI_METHOD * method)710 int (*UI_method_get_writer(const UI_METHOD *method)) (UI *, UI_STRING *)
711 {
712 if (method != NULL)
713 return method->ui_write_string;
714 return NULL;
715 }
716
UI_method_get_flusher(const UI_METHOD * method)717 int (*UI_method_get_flusher(const UI_METHOD *method)) (UI *)
718 {
719 if (method != NULL)
720 return method->ui_flush;
721 return NULL;
722 }
723
UI_method_get_reader(const UI_METHOD * method)724 int (*UI_method_get_reader(const UI_METHOD *method)) (UI *, UI_STRING *)
725 {
726 if (method != NULL)
727 return method->ui_read_string;
728 return NULL;
729 }
730
UI_method_get_closer(const UI_METHOD * method)731 int (*UI_method_get_closer(const UI_METHOD *method)) (UI *)
732 {
733 if (method != NULL)
734 return method->ui_close_session;
735 return NULL;
736 }
737
UI_method_get_prompt_constructor(const UI_METHOD * method)738 char *(*UI_method_get_prompt_constructor(const UI_METHOD *method))
739 (UI *, const char *, const char *)
740 {
741 if (method != NULL)
742 return method->ui_construct_prompt;
743 return NULL;
744 }
745
UI_method_get_data_duplicator(const UI_METHOD * method)746 void *(*UI_method_get_data_duplicator(const UI_METHOD *method)) (UI *, void *)
747 {
748 if (method != NULL)
749 return method->ui_duplicate_data;
750 return NULL;
751 }
752
UI_method_get_data_destructor(const UI_METHOD * method)753 void (*UI_method_get_data_destructor(const UI_METHOD *method)) (UI *, void *)
754 {
755 if (method != NULL)
756 return method->ui_destroy_data;
757 return NULL;
758 }
759
UI_method_get_ex_data(const UI_METHOD * method,int idx)760 const void *UI_method_get_ex_data(const UI_METHOD *method, int idx)
761 {
762 return CRYPTO_get_ex_data(&method->ex_data, idx);
763 }
764
UI_get_string_type(UI_STRING * uis)765 enum UI_string_types UI_get_string_type(UI_STRING *uis)
766 {
767 return uis->type;
768 }
769
UI_get_input_flags(UI_STRING * uis)770 int UI_get_input_flags(UI_STRING *uis)
771 {
772 return uis->input_flags;
773 }
774
UI_get0_output_string(UI_STRING * uis)775 const char *UI_get0_output_string(UI_STRING *uis)
776 {
777 return uis->out_string;
778 }
779
UI_get0_action_string(UI_STRING * uis)780 const char *UI_get0_action_string(UI_STRING *uis)
781 {
782 switch (uis->type) {
783 case UIT_BOOLEAN:
784 return uis->_.boolean_data.action_desc;
785 case UIT_PROMPT:
786 case UIT_NONE:
787 case UIT_VERIFY:
788 case UIT_INFO:
789 case UIT_ERROR:
790 break;
791 }
792 return NULL;
793 }
794
UI_get0_result_string(UI_STRING * uis)795 const char *UI_get0_result_string(UI_STRING *uis)
796 {
797 switch (uis->type) {
798 case UIT_PROMPT:
799 case UIT_VERIFY:
800 return uis->result_buf;
801 case UIT_NONE:
802 case UIT_BOOLEAN:
803 case UIT_INFO:
804 case UIT_ERROR:
805 break;
806 }
807 return NULL;
808 }
809
UI_get_result_string_length(UI_STRING * uis)810 int UI_get_result_string_length(UI_STRING *uis)
811 {
812 switch (uis->type) {
813 case UIT_PROMPT:
814 case UIT_VERIFY:
815 return uis->result_len;
816 case UIT_NONE:
817 case UIT_BOOLEAN:
818 case UIT_INFO:
819 case UIT_ERROR:
820 break;
821 }
822 return -1;
823 }
824
UI_get0_test_string(UI_STRING * uis)825 const char *UI_get0_test_string(UI_STRING *uis)
826 {
827 switch (uis->type) {
828 case UIT_VERIFY:
829 return uis->_.string_data.test_buf;
830 case UIT_NONE:
831 case UIT_BOOLEAN:
832 case UIT_INFO:
833 case UIT_ERROR:
834 case UIT_PROMPT:
835 break;
836 }
837 return NULL;
838 }
839
UI_get_result_minsize(UI_STRING * uis)840 int UI_get_result_minsize(UI_STRING *uis)
841 {
842 switch (uis->type) {
843 case UIT_PROMPT:
844 case UIT_VERIFY:
845 return uis->_.string_data.result_minsize;
846 case UIT_NONE:
847 case UIT_INFO:
848 case UIT_ERROR:
849 case UIT_BOOLEAN:
850 break;
851 }
852 return -1;
853 }
854
UI_get_result_maxsize(UI_STRING * uis)855 int UI_get_result_maxsize(UI_STRING *uis)
856 {
857 switch (uis->type) {
858 case UIT_PROMPT:
859 case UIT_VERIFY:
860 return uis->_.string_data.result_maxsize;
861 case UIT_NONE:
862 case UIT_INFO:
863 case UIT_ERROR:
864 case UIT_BOOLEAN:
865 break;
866 }
867 return -1;
868 }
869
UI_set_result(UI * ui,UI_STRING * uis,const char * result)870 int UI_set_result(UI *ui, UI_STRING *uis, const char *result)
871 {
872 return UI_set_result_ex(ui, uis, result, strlen(result));
873 }
874
UI_set_result_ex(UI * ui,UI_STRING * uis,const char * result,int len)875 int UI_set_result_ex(UI *ui, UI_STRING *uis, const char *result, int len)
876 {
877 ui->flags &= ~UI_FLAG_REDOABLE;
878
879 switch (uis->type) {
880 case UIT_PROMPT:
881 case UIT_VERIFY:
882 if (len < uis->_.string_data.result_minsize) {
883 ui->flags |= UI_FLAG_REDOABLE;
884 ERR_raise_data(ERR_LIB_UI, UI_R_RESULT_TOO_SMALL,
885 "You must type in %d to %d characters",
886 uis->_.string_data.result_minsize,
887 uis->_.string_data.result_maxsize);
888 return -1;
889 }
890 if (len > uis->_.string_data.result_maxsize) {
891 ui->flags |= UI_FLAG_REDOABLE;
892 ERR_raise_data(ERR_LIB_UI, UI_R_RESULT_TOO_LARGE,
893 "You must type in %d to %d characters",
894 uis->_.string_data.result_minsize,
895 uis->_.string_data.result_maxsize);
896 return -1;
897 }
898
899 if (uis->result_buf == NULL) {
900 ERR_raise(ERR_LIB_UI, UI_R_NO_RESULT_BUFFER);
901 return -1;
902 }
903
904 memcpy(uis->result_buf, result, len);
905 if (len <= uis->_.string_data.result_maxsize)
906 uis->result_buf[len] = '\0';
907 uis->result_len = len;
908 break;
909 case UIT_BOOLEAN:
910 {
911 const char *p;
912
913 if (uis->result_buf == NULL) {
914 ERR_raise(ERR_LIB_UI, UI_R_NO_RESULT_BUFFER);
915 return -1;
916 }
917
918 uis->result_buf[0] = '\0';
919 for (p = result; *p; p++) {
920 if (strchr(uis->_.boolean_data.ok_chars, *p)) {
921 uis->result_buf[0] = uis->_.boolean_data.ok_chars[0];
922 break;
923 }
924 if (strchr(uis->_.boolean_data.cancel_chars, *p)) {
925 uis->result_buf[0] = uis->_.boolean_data.cancel_chars[0];
926 break;
927 }
928 }
929 }
930 case UIT_NONE:
931 case UIT_INFO:
932 case UIT_ERROR:
933 break;
934 }
935 return 0;
936 }
937
