1 /*
2 * Copyright 2001-2019 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 }
533 }
534
535 state = NULL;
536 err:
537 if (ui->meth->ui_close_session != NULL
538 && ui->meth->ui_close_session(ui) <= 0) {
539 if (state == NULL)
540 state = "closing session";
541 ok = -1;
542 }
543
544 if (ok == -1) {
545 UIerr(UI_F_UI_PROCESS, UI_R_PROCESSING_ERROR);
546 ERR_add_error_data(2, "while ", state);
547 }
548 return ok;
549 }
550
UI_ctrl(UI * ui,int cmd,long i,void * p,void (* f)(void))551 int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void))
552 {
553 if (ui == NULL) {
554 UIerr(UI_F_UI_CTRL, ERR_R_PASSED_NULL_PARAMETER);
555 return -1;
556 }
557 switch (cmd) {
558 case UI_CTRL_PRINT_ERRORS:
559 {
560 int save_flag = ! !(ui->flags & UI_FLAG_PRINT_ERRORS);
561 if (i)
562 ui->flags |= UI_FLAG_PRINT_ERRORS;
563 else
564 ui->flags &= ~UI_FLAG_PRINT_ERRORS;
565 return save_flag;
566 }
567 case UI_CTRL_IS_REDOABLE:
568 return ! !(ui->flags & UI_FLAG_REDOABLE);
569 default:
570 break;
571 }
572 UIerr(UI_F_UI_CTRL, UI_R_UNKNOWN_CONTROL_COMMAND);
573 return -1;
574 }
575
UI_set_ex_data(UI * r,int idx,void * arg)576 int UI_set_ex_data(UI *r, int idx, void *arg)
577 {
578 return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
579 }
580
UI_get_ex_data(UI * r,int idx)581 void *UI_get_ex_data(UI *r, int idx)
582 {
583 return CRYPTO_get_ex_data(&r->ex_data, idx);
584 }
585
UI_get_method(UI * ui)586 const UI_METHOD *UI_get_method(UI *ui)
587 {
588 return ui->meth;
589 }
590
UI_set_method(UI * ui,const UI_METHOD * meth)591 const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth)
592 {
593 ui->meth = meth;
594 return ui->meth;
595 }
596
UI_create_method(const char * name)597 UI_METHOD *UI_create_method(const char *name)
598 {
599 UI_METHOD *ui_method = NULL;
600
601 if ((ui_method = OPENSSL_zalloc(sizeof(*ui_method))) == NULL
602 || (ui_method->name = OPENSSL_strdup(name)) == NULL
603 || !CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
604 &ui_method->ex_data)) {
605 if (ui_method)
606 OPENSSL_free(ui_method->name);
607 OPENSSL_free(ui_method);
608 UIerr(UI_F_UI_CREATE_METHOD, ERR_R_MALLOC_FAILURE);
609 return NULL;
610 }
611 return ui_method;
612 }
613
614 /*
615 * BIG FSCKING WARNING!!!! If you use this on a statically allocated method
616 * (that is, it hasn't been allocated using UI_create_method(), you deserve
617 * anything Murphy can throw at you and more! You have been warned.
618 */
UI_destroy_method(UI_METHOD * ui_method)619 void UI_destroy_method(UI_METHOD *ui_method)
620 {
621 if (ui_method == NULL)
622 return;
623 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI_METHOD, ui_method,
624 &ui_method->ex_data);
625 OPENSSL_free(ui_method->name);
626 ui_method->name = NULL;
627 OPENSSL_free(ui_method);
628 }
629
UI_method_set_opener(UI_METHOD * method,int (* opener)(UI * ui))630 int UI_method_set_opener(UI_METHOD *method, int (*opener) (UI *ui))
631 {
632 if (method != NULL) {
633 method->ui_open_session = opener;
634 return 0;
635 }
636 return -1;
637 }
638
UI_method_set_writer(UI_METHOD * method,int (* writer)(UI * ui,UI_STRING * uis))639 int UI_method_set_writer(UI_METHOD *method,
640 int (*writer) (UI *ui, UI_STRING *uis))
641 {
642 if (method != NULL) {
643 method->ui_write_string = writer;
644 return 0;
645 }
646 return -1;
647 }
648
UI_method_set_flusher(UI_METHOD * method,int (* flusher)(UI * ui))649 int UI_method_set_flusher(UI_METHOD *method, int (*flusher) (UI *ui))
650 {
651 if (method != NULL) {
652 method->ui_flush = flusher;
653 return 0;
654 }
655 return -1;
656 }
657
UI_method_set_reader(UI_METHOD * method,int (* reader)(UI * ui,UI_STRING * uis))658 int UI_method_set_reader(UI_METHOD *method,
659 int (*reader) (UI *ui, UI_STRING *uis))
660 {
661 if (method != NULL) {
662 method->ui_read_string = reader;
663 return 0;
664 }
665 return -1;
666 }
667
UI_method_set_closer(UI_METHOD * method,int (* closer)(UI * ui))668 int UI_method_set_closer(UI_METHOD *method, int (*closer) (UI *ui))
669 {
670 if (method != NULL) {
671 method->ui_close_session = closer;
672 return 0;
673 }
674 return -1;
675 }
676
UI_method_set_data_duplicator(UI_METHOD * method,void * (* duplicator)(UI * ui,void * ui_data),void (* destructor)(UI * ui,void * ui_data))677 int UI_method_set_data_duplicator(UI_METHOD *method,
678 void *(*duplicator) (UI *ui, void *ui_data),
679 void (*destructor)(UI *ui, void *ui_data))
680 {
681 if (method != NULL) {
682 method->ui_duplicate_data = duplicator;
683 method->ui_destroy_data = destructor;
684 return 0;
685 }
686 return -1;
687 }
688
UI_method_set_prompt_constructor(UI_METHOD * method,char * (* prompt_constructor)(UI * ui,const char * object_desc,const char * object_name))689 int UI_method_set_prompt_constructor(UI_METHOD *method,
690 char *(*prompt_constructor) (UI *ui,
691 const char
692 *object_desc,
693 const char
694 *object_name))
695 {
696 if (method != NULL) {
697 method->ui_construct_prompt = prompt_constructor;
698 return 0;
699 }
700 return -1;
701 }
702
UI_method_set_ex_data(UI_METHOD * method,int idx,void * data)703 int UI_method_set_ex_data(UI_METHOD *method, int idx, void *data)
704 {
705 return CRYPTO_set_ex_data(&method->ex_data, idx, data);
706 }
707
UI_method_get_opener(const UI_METHOD * method)708 int (*UI_method_get_opener(const UI_METHOD *method)) (UI *)
709 {
710 if (method != NULL)
711 return method->ui_open_session;
712 return NULL;
713 }
714
UI_method_get_writer(const UI_METHOD * method)715 int (*UI_method_get_writer(const UI_METHOD *method)) (UI *, UI_STRING *)
716 {
717 if (method != NULL)
718 return method->ui_write_string;
719 return NULL;
720 }
721
UI_method_get_flusher(const UI_METHOD * method)722 int (*UI_method_get_flusher(const UI_METHOD *method)) (UI *)
723 {
724 if (method != NULL)
725 return method->ui_flush;
726 return NULL;
727 }
728
UI_method_get_reader(const UI_METHOD * method)729 int (*UI_method_get_reader(const UI_METHOD *method)) (UI *, UI_STRING *)
730 {
731 if (method != NULL)
732 return method->ui_read_string;
733 return NULL;
734 }
735
UI_method_get_closer(const UI_METHOD * method)736 int (*UI_method_get_closer(const UI_METHOD *method)) (UI *)
737 {
738 if (method != NULL)
739 return method->ui_close_session;
740 return NULL;
741 }
742
UI_method_get_prompt_constructor(const UI_METHOD * method)743 char *(*UI_method_get_prompt_constructor(const UI_METHOD *method))
744 (UI *, const char *, const char *)
745 {
746 if (method != NULL)
747 return method->ui_construct_prompt;
748 return NULL;
749 }
750
UI_method_get_data_duplicator(const UI_METHOD * method)751 void *(*UI_method_get_data_duplicator(const UI_METHOD *method)) (UI *, void *)
752 {
753 if (method != NULL)
754 return method->ui_duplicate_data;
755 return NULL;
756 }
757
UI_method_get_data_destructor(const UI_METHOD * method)758 void (*UI_method_get_data_destructor(const UI_METHOD *method)) (UI *, void *)
759 {
760 if (method != NULL)
761 return method->ui_destroy_data;
762 return NULL;
763 }
764
UI_method_get_ex_data(const UI_METHOD * method,int idx)765 const void *UI_method_get_ex_data(const UI_METHOD *method, int idx)
766 {
767 return CRYPTO_get_ex_data(&method->ex_data, idx);
768 }
769
UI_get_string_type(UI_STRING * uis)770 enum UI_string_types UI_get_string_type(UI_STRING *uis)
771 {
772 return uis->type;
773 }
774
UI_get_input_flags(UI_STRING * uis)775 int UI_get_input_flags(UI_STRING *uis)
776 {
777 return uis->input_flags;
778 }
779
UI_get0_output_string(UI_STRING * uis)780 const char *UI_get0_output_string(UI_STRING *uis)
781 {
782 return uis->out_string;
783 }
784
UI_get0_action_string(UI_STRING * uis)785 const char *UI_get0_action_string(UI_STRING *uis)
786 {
787 switch (uis->type) {
788 case UIT_BOOLEAN:
789 return uis->_.boolean_data.action_desc;
790 case UIT_PROMPT:
791 case UIT_NONE:
792 case UIT_VERIFY:
793 case UIT_INFO:
794 case UIT_ERROR:
795 break;
796 }
797 return NULL;
798 }
799
UI_get0_result_string(UI_STRING * uis)800 const char *UI_get0_result_string(UI_STRING *uis)
801 {
802 switch (uis->type) {
803 case UIT_PROMPT:
804 case UIT_VERIFY:
805 return uis->result_buf;
806 case UIT_NONE:
807 case UIT_BOOLEAN:
808 case UIT_INFO:
809 case UIT_ERROR:
810 break;
811 }
812 return NULL;
813 }
814
UI_get_result_string_length(UI_STRING * uis)815 int UI_get_result_string_length(UI_STRING *uis)
816 {
817 switch (uis->type) {
818 case UIT_PROMPT:
819 case UIT_VERIFY:
820 return uis->result_len;
821 case UIT_NONE:
822 case UIT_BOOLEAN:
823 case UIT_INFO:
824 case UIT_ERROR:
825 break;
826 }
827 return -1;
828 }
829
UI_get0_test_string(UI_STRING * uis)830 const char *UI_get0_test_string(UI_STRING *uis)
831 {
832 switch (uis->type) {
833 case UIT_VERIFY:
834 return uis->_.string_data.test_buf;
835 case UIT_NONE:
836 case UIT_BOOLEAN:
837 case UIT_INFO:
838 case UIT_ERROR:
839 case UIT_PROMPT:
840 break;
841 }
842 return NULL;
843 }
844
UI_get_result_minsize(UI_STRING * uis)845 int UI_get_result_minsize(UI_STRING *uis)
846 {
847 switch (uis->type) {
848 case UIT_PROMPT:
849 case UIT_VERIFY:
850 return uis->_.string_data.result_minsize;
851 case UIT_NONE:
852 case UIT_INFO:
853 case UIT_ERROR:
854 case UIT_BOOLEAN:
855 break;
856 }
857 return -1;
858 }
859
UI_get_result_maxsize(UI_STRING * uis)860 int UI_get_result_maxsize(UI_STRING *uis)
861 {
862 switch (uis->type) {
863 case UIT_PROMPT:
864 case UIT_VERIFY:
865 return uis->_.string_data.result_maxsize;
866 case UIT_NONE:
867 case UIT_INFO:
868 case UIT_ERROR:
869 case UIT_BOOLEAN:
870 break;
871 }
872 return -1;
873 }
874
UI_set_result(UI * ui,UI_STRING * uis,const char * result)875 int UI_set_result(UI *ui, UI_STRING *uis, const char *result)
876 {
877 #if 0
878 /*
879 * This is placed here solely to preserve UI_F_UI_SET_RESULT
880 * To be removed for OpenSSL 1.2.0
881 */
882 UIerr(UI_F_UI_SET_RESULT, ERR_R_DISABLED);
883 #endif
884 return UI_set_result_ex(ui, uis, result, strlen(result));
885 }
886
UI_set_result_ex(UI * ui,UI_STRING * uis,const char * result,int len)887 int UI_set_result_ex(UI *ui, UI_STRING *uis, const char *result, int len)
888 {
889 ui->flags &= ~UI_FLAG_REDOABLE;
890
891 switch (uis->type) {
892 case UIT_PROMPT:
893 case UIT_VERIFY:
894 {
895 char number1[DECIMAL_SIZE(uis->_.string_data.result_minsize) + 1];
896 char number2[DECIMAL_SIZE(uis->_.string_data.result_maxsize) + 1];
897
898 BIO_snprintf(number1, sizeof(number1), "%d",
899 uis->_.string_data.result_minsize);
900 BIO_snprintf(number2, sizeof(number2), "%d",
901 uis->_.string_data.result_maxsize);
902
903 if (len < uis->_.string_data.result_minsize) {
904 ui->flags |= UI_FLAG_REDOABLE;
905 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_RESULT_TOO_SMALL);
906 ERR_add_error_data(5, "You must type in ",
907 number1, " to ", number2, " characters");
908 return -1;
909 }
910 if (len > uis->_.string_data.result_maxsize) {
911 ui->flags |= UI_FLAG_REDOABLE;
912 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_RESULT_TOO_LARGE);
913 ERR_add_error_data(5, "You must type in ",
914 number1, " to ", number2, " characters");
915 return -1;
916 }
917 }
918
919 if (uis->result_buf == NULL) {
920 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_NO_RESULT_BUFFER);
921 return -1;
922 }
923
924 memcpy(uis->result_buf, result, len);
925 if (len <= uis->_.string_data.result_maxsize)
926 uis->result_buf[len] = '\0';
927 uis->result_len = len;
928 break;
929 case UIT_BOOLEAN:
930 {
931 const char *p;
932
933 if (uis->result_buf == NULL) {
934 UIerr(UI_F_UI_SET_RESULT_EX, UI_R_NO_RESULT_BUFFER);
935 return -1;
936 }
937
938 uis->result_buf[0] = '\0';
939 for (p = result; *p; p++) {
940 if (strchr(uis->_.boolean_data.ok_chars, *p)) {
941 uis->result_buf[0] = uis->_.boolean_data.ok_chars[0];
942 break;
943 }
944 if (strchr(uis->_.boolean_data.cancel_chars, *p)) {
945 uis->result_buf[0] = uis->_.boolean_data.cancel_chars[0];
946 break;
947 }
948 }
949 }
950 case UIT_NONE:
951 case UIT_INFO:
952 case UIT_ERROR:
953 break;
954 }
955 return 0;
956 }
957