1 /* crypto/ui/ui_lib.c -*- mode:C; c-file-style: "eay" -*- */
2 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
3 * project 2001.
4 */
5 /* ====================================================================
6 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * openssl-core@openssl.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 #include <string.h>
60 #include "cryptlib.h"
61 #include <openssl/e_os2.h>
62 #include <openssl/buffer.h>
63 #include <openssl/ui.h>
64 #include <openssl/err.h>
65 #include "ui_locl.h"
66
67 IMPLEMENT_STACK_OF(UI_STRING_ST)
68
69 static const UI_METHOD *default_UI_meth=NULL;
70
71 UI *UI_new(void)
72 {
73 return(UI_new_method(NULL));
74 }
75
76 UI *UI_new_method(const UI_METHOD *method)
77 {
78 UI *ret;
79
80 ret=(UI *)OPENSSL_malloc(sizeof(UI));
81 if (ret == NULL)
82 {
83 UIerr(UI_F_UI_NEW_METHOD,ERR_R_MALLOC_FAILURE);
84 return NULL;
85 }
86 if (method == NULL)
87 ret->meth=UI_get_default_method();
88 else
89 ret->meth=method;
90
91 ret->strings=NULL;
92 ret->user_data=NULL;
93 ret->flags=0;
94 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI, ret, &ret->ex_data);
95 return ret;
96 }
97
98 static void free_string(UI_STRING *uis)
99 {
100 if (uis->flags & OUT_STRING_FREEABLE)
101 {
102 OPENSSL_free((char *)uis->out_string);
103 switch(uis->type)
104 {
105 case UIT_BOOLEAN:
106 OPENSSL_free((char *)uis->_.boolean_data.action_desc);
107 OPENSSL_free((char *)uis->_.boolean_data.ok_chars);
108 OPENSSL_free((char *)uis->_.boolean_data.cancel_chars);
109 break;
110 default:
111 break;
112 }
113 }
114 OPENSSL_free(uis);
115 }
116
117 void UI_free(UI *ui)
118 {
119 if (ui == NULL)
120 return;
121 sk_UI_STRING_pop_free(ui->strings,free_string);
122 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI, ui, &ui->ex_data);
123 OPENSSL_free(ui);
124 }
125
126 static int allocate_string_stack(UI *ui)
127 {
128 if (ui->strings == NULL)
129 {
130 ui->strings=sk_UI_STRING_new_null();
131 if (ui->strings == NULL)
132 {
133 return -1;
134 }
135 }
136 return 0;
137 }
138
139 static UI_STRING *general_allocate_prompt(UI *ui, const char *prompt,
140 int prompt_freeable, enum UI_string_types type, int input_flags,
141 char *result_buf)
142 {
143 UI_STRING *ret = NULL;
144
145 if (prompt == NULL)
146 {
147 UIerr(UI_F_GENERAL_ALLOCATE_PROMPT,ERR_R_PASSED_NULL_PARAMETER);
148 }
149 else if ((type == UIT_PROMPT || type == UIT_VERIFY
150 || type == UIT_BOOLEAN) && result_buf == NULL)
151 {
152 UIerr(UI_F_GENERAL_ALLOCATE_PROMPT,UI_R_NO_RESULT_BUFFER);
153 }
154 else if ((ret = (UI_STRING *)OPENSSL_malloc(sizeof(UI_STRING))))
155 {
156 ret->out_string=prompt;
157 ret->flags=prompt_freeable ? OUT_STRING_FREEABLE : 0;
158 ret->input_flags=input_flags;
159 ret->type=type;
160 ret->result_buf=result_buf;
161 }
162 return ret;
163 }
164
165 static int general_allocate_string(UI *ui, const char *prompt,
166 int prompt_freeable, enum UI_string_types type, int input_flags,
167 char *result_buf, int minsize, int maxsize, const char *test_buf)
168 {
169 int ret = -1;
170 UI_STRING *s = general_allocate_prompt(ui, prompt, prompt_freeable,
171 type, input_flags, result_buf);
172
173 if (s)
174 {
175 if (allocate_string_stack(ui) >= 0)
176 {
177 s->_.string_data.result_minsize=minsize;
178 s->_.string_data.result_maxsize=maxsize;
179 s->_.string_data.test_buf=test_buf;
180 ret=sk_UI_STRING_push(ui->strings, s);
181 /* sk_push() returns 0 on error. Let's addapt that */
182 if (ret <= 0) ret--;
183 }
184 else
185 free_string(s);
186 }
187 return ret;
188 }
189
190 static int general_allocate_boolean(UI *ui,
191 const char *prompt, const char *action_desc,
192 const char *ok_chars, const char *cancel_chars,
193 int prompt_freeable, enum UI_string_types type, int input_flags,
194 char *result_buf)
195 {
196 int ret = -1;
197 UI_STRING *s;
198 const char *p;
199
200 if (ok_chars == NULL)
201 {
202 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN,ERR_R_PASSED_NULL_PARAMETER);
203 }
204 else if (cancel_chars == NULL)
205 {
206 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN,ERR_R_PASSED_NULL_PARAMETER);
207 }
208 else
209 {
210 for(p = ok_chars; *p; p++)
211 {
212 if (strchr(cancel_chars, *p))
213 {
214 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN,
215 UI_R_COMMON_OK_AND_CANCEL_CHARACTERS);
216 }
217 }
218
219 s = general_allocate_prompt(ui, prompt, prompt_freeable,
220 type, input_flags, result_buf);
221
222 if (s)
223 {
224 if (allocate_string_stack(ui) >= 0)
225 {
226 s->_.boolean_data.action_desc = action_desc;
227 s->_.boolean_data.ok_chars = ok_chars;
228 s->_.boolean_data.cancel_chars = cancel_chars;
229 ret=sk_UI_STRING_push(ui->strings, s);
230 /* sk_push() returns 0 on error.
231 Let's addapt that */
232 if (ret <= 0) ret--;
233 }
234 else
235 free_string(s);
236 }
237 }
238 return ret;
239 }
240
241 /* Returns the index to the place in the stack or -1 for error. Uses a
242 direct reference to the prompt. */
243 int UI_add_input_string(UI *ui, const char *prompt, int flags,
244 char *result_buf, int minsize, int maxsize)
245 {
246 return general_allocate_string(ui, prompt, 0,
247 UIT_PROMPT, flags, result_buf, minsize, maxsize, NULL);
248 }
249
250 /* Same as UI_add_input_string(), excepts it takes a copy of the prompt */
251 int UI_dup_input_string(UI *ui, const char *prompt, int flags,
252 char *result_buf, int minsize, int maxsize)
253 {
254 char *prompt_copy=NULL;
255
256 if (prompt)
257 {
258 prompt_copy=BUF_strdup(prompt);
259 if (prompt_copy == NULL)
260 {
261 UIerr(UI_F_UI_DUP_INPUT_STRING,ERR_R_MALLOC_FAILURE);
262 return 0;
263 }
264 }
265
266 return general_allocate_string(ui, prompt_copy, 1,
267 UIT_PROMPT, flags, result_buf, minsize, maxsize, NULL);
268 }
269
270 int UI_add_verify_string(UI *ui, const char *prompt, int flags,
271 char *result_buf, int minsize, int maxsize, const char *test_buf)
272 {
273 return general_allocate_string(ui, prompt, 0,
274 UIT_VERIFY, flags, result_buf, minsize, maxsize, test_buf);
275 }
276
277 int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
278 char *result_buf, int minsize, int maxsize, const char *test_buf)
279 {
280 char *prompt_copy=NULL;
281
282 if (prompt)
283 {
284 prompt_copy=BUF_strdup(prompt);
285 if (prompt_copy == NULL)
286 {
287 UIerr(UI_F_UI_DUP_VERIFY_STRING,ERR_R_MALLOC_FAILURE);
288 return -1;
289 }
290 }
291
292 return general_allocate_string(ui, prompt_copy, 1,
293 UIT_VERIFY, flags, result_buf, minsize, maxsize, test_buf);
294 }
295
296 int UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc,
297 const char *ok_chars, const char *cancel_chars,
298 int flags, char *result_buf)
299 {
300 return general_allocate_boolean(ui, prompt, action_desc,
301 ok_chars, cancel_chars, 0, UIT_BOOLEAN, flags, result_buf);
302 }
303
304 int UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc,
305 const char *ok_chars, const char *cancel_chars,
306 int flags, char *result_buf)
307 {
308 char *prompt_copy = NULL;
309 char *action_desc_copy = NULL;
310 char *ok_chars_copy = NULL;
311 char *cancel_chars_copy = NULL;
312
313 if (prompt)
314 {
315 prompt_copy=BUF_strdup(prompt);
316 if (prompt_copy == NULL)
317 {
318 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN,ERR_R_MALLOC_FAILURE);
319 goto err;
320 }
321 }
322
323 if (action_desc)
324 {
325 action_desc_copy=BUF_strdup(action_desc);
326 if (action_desc_copy == NULL)
327 {
328 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN,ERR_R_MALLOC_FAILURE);
329 goto err;
330 }
331 }
332
333 if (ok_chars)
334 {
335 ok_chars_copy=BUF_strdup(ok_chars);
336 if (ok_chars_copy == NULL)
337 {
338 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN,ERR_R_MALLOC_FAILURE);
339 goto err;
340 }
341 }
342
343 if (cancel_chars)
344 {
345 cancel_chars_copy=BUF_strdup(cancel_chars);
346 if (cancel_chars_copy == NULL)
347 {
348 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN,ERR_R_MALLOC_FAILURE);
349 goto err;
350 }
351 }
352
353 return general_allocate_boolean(ui, prompt_copy, action_desc_copy,
354 ok_chars_copy, cancel_chars_copy, 1, UIT_BOOLEAN, flags,
355 result_buf);
356 err:
357 if (prompt_copy) OPENSSL_free(prompt_copy);
358 if (action_desc_copy) OPENSSL_free(action_desc_copy);
359 if (ok_chars_copy) OPENSSL_free(ok_chars_copy);
360 if (cancel_chars_copy) OPENSSL_free(cancel_chars_copy);
361 return -1;
362 }
363
364 int UI_add_info_string(UI *ui, const char *text)
365 {
366 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0,
367 NULL);
368 }
369
370 int UI_dup_info_string(UI *ui, const char *text)
371 {
372 char *text_copy=NULL;
373
374 if (text)
375 {
376 text_copy=BUF_strdup(text);
377 if (text_copy == NULL)
378 {
379 UIerr(UI_F_UI_DUP_INFO_STRING,ERR_R_MALLOC_FAILURE);
380 return -1;
381 }
382 }
383
384 return general_allocate_string(ui, text_copy, 1, UIT_INFO, 0, NULL,
385 0, 0, NULL);
386 }
387
388 int UI_add_error_string(UI *ui, const char *text)
389 {
390 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0,
391 NULL);
392 }
393
394 int UI_dup_error_string(UI *ui, const char *text)
395 {
396 char *text_copy=NULL;
397
398 if (text)
399 {
400 text_copy=BUF_strdup(text);
401 if (text_copy == NULL)
402 {
403 UIerr(UI_F_UI_DUP_ERROR_STRING,ERR_R_MALLOC_FAILURE);
404 return -1;
405 }
406 }
407 return general_allocate_string(ui, text_copy, 1, UIT_ERROR, 0, NULL,
408 0, 0, NULL);
409 }
410
411 char *UI_construct_prompt(UI *ui, const char *object_desc,
412 const char *object_name)
413 {
414 char *prompt = NULL;
415
416 if (ui->meth->ui_construct_prompt)
417 prompt = ui->meth->ui_construct_prompt(ui,
418 object_desc, object_name);
419 else
420 {
421 char prompt1[] = "Enter ";
422 char prompt2[] = " for ";
423 char prompt3[] = ":";
424 int len = 0;
425
426 if (object_desc == NULL)
427 return NULL;
428 len = sizeof(prompt1) - 1 + strlen(object_desc);
429 if (object_name)
430 len += sizeof(prompt2) - 1 + strlen(object_name);
431 len += sizeof(prompt3) - 1;
432
433 prompt = (char *)OPENSSL_malloc(len + 1);
434 BUF_strlcpy(prompt, prompt1, len + 1);
435 BUF_strlcat(prompt, object_desc, len + 1);
436 if (object_name)
437 {
438 BUF_strlcat(prompt, prompt2, len + 1);
439 BUF_strlcat(prompt, object_name, len + 1);
440 }
441 BUF_strlcat(prompt, prompt3, len + 1);
442 }
443 return prompt;
444 }
445
446 void *UI_add_user_data(UI *ui, void *user_data)
447 {
448 void *old_data = ui->user_data;
449 ui->user_data = user_data;
450 return old_data;
451 }
452
453 void *UI_get0_user_data(UI *ui)
454 {
455 return ui->user_data;
456 }
457
458 const char *UI_get0_result(UI *ui, int i)
459 {
460 if (i < 0)
461 {
462 UIerr(UI_F_UI_GET0_RESULT,UI_R_INDEX_TOO_SMALL);
463 return NULL;
464 }
465 if (i >= sk_UI_STRING_num(ui->strings))
466 {
467 UIerr(UI_F_UI_GET0_RESULT,UI_R_INDEX_TOO_LARGE);
468 return NULL;
469 }
470 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i));
471 }
472
473 static int print_error(const char *str, size_t len, UI *ui)
474 {
475 UI_STRING uis;
476
477 memset(&uis, 0, sizeof(uis));
478 uis.type = UIT_ERROR;
479 uis.out_string = str;
480
481 if (ui->meth->ui_write_string
482 && !ui->meth->ui_write_string(ui, &uis))
483 return -1;
484 return 0;
485 }
486
487 int UI_process(UI *ui)
488 {
489 int i, ok=0;
490
491 if (ui->meth->ui_open_session && !ui->meth->ui_open_session(ui))
492 return -1;
493
494 if (ui->flags & UI_FLAG_PRINT_ERRORS)
495 ERR_print_errors_cb(
496 (int (*)(const char *, size_t, void *))print_error,
497 (void *)ui);
498
499 for(i=0; i<sk_UI_STRING_num(ui->strings); i++)
500 {
501 if (ui->meth->ui_write_string
502 && !ui->meth->ui_write_string(ui,
503 sk_UI_STRING_value(ui->strings, i)))
504 {
505 ok=-1;
506 goto err;
507 }
508 }
509
510 if (ui->meth->ui_flush)
511 switch(ui->meth->ui_flush(ui))
512 {
513 case -1: /* Interrupt/Cancel/something... */
514 ok = -2;
515 goto err;
516 case 0: /* Errors */
517 ok = -1;
518 goto err;
519 default: /* Success */
520 ok = 0;
521 break;
522 }
523
524 for(i=0; i<sk_UI_STRING_num(ui->strings); i++)
525 {
526 if (ui->meth->ui_read_string)
527 {
528 switch(ui->meth->ui_read_string(ui,
529 sk_UI_STRING_value(ui->strings, i)))
530 {
531 case -1: /* Interrupt/Cancel/something... */
532 ok = -2;
533 goto err;
534 case 0: /* Errors */
535 ok = -1;
536 goto err;
537 default: /* Success */
538 ok = 0;
539 break;
540 }
541 }
542 }
543 err:
544 if (ui->meth->ui_close_session && !ui->meth->ui_close_session(ui))
545 return -1;
546 return ok;
547 }
548
549 int UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f)(void))
550 {
551 if (ui == NULL)
552 {
553 UIerr(UI_F_UI_CTRL,ERR_R_PASSED_NULL_PARAMETER);
554 return -1;
555 }
556 switch(cmd)
557 {
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
576 int UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
577 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
578 {
579 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_UI, argl, argp,
580 new_func, dup_func, free_func);
581 }
582
583 int UI_set_ex_data(UI *r, int idx, void *arg)
584 {
585 return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
586 }
587
588 void *UI_get_ex_data(UI *r, int idx)
589 {
590 return(CRYPTO_get_ex_data(&r->ex_data,idx));
591 }
592
593 void UI_set_default_method(const UI_METHOD *meth)
594 {
595 default_UI_meth=meth;
596 }
597
598 const UI_METHOD *UI_get_default_method(void)
599 {
600 if (default_UI_meth == NULL)
601 {
602 default_UI_meth=UI_OpenSSL();
603 }
604 return default_UI_meth;
605 }
606
607 const UI_METHOD *UI_get_method(UI *ui)
608 {
609 return ui->meth;
610 }
611
612 const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth)
613 {
614 ui->meth=meth;
615 return ui->meth;
616 }
617
618
619 UI_METHOD *UI_create_method(char *name)
620 {
621 UI_METHOD *ui_method = (UI_METHOD *)OPENSSL_malloc(sizeof(UI_METHOD));
622
623 if (ui_method)
624 {
625 memset(ui_method, 0, sizeof(*ui_method));
626 ui_method->name = BUF_strdup(name);
627 }
628 return ui_method;
629 }
630
631 /* BIG FSCKING WARNING!!!! If you use this on a statically allocated method
632 (that is, it hasn't been allocated using UI_create_method(), you deserve
633 anything Murphy can throw at you and more! You have been warned. */
634 void UI_destroy_method(UI_METHOD *ui_method)
635 {
636 OPENSSL_free(ui_method->name);
637 ui_method->name = NULL;
638 OPENSSL_free(ui_method);
639 }
640
641 int UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui))
642 {
643 if (method)
644 {
645 method->ui_open_session = opener;
646 return 0;
647 }
648 else
649 return -1;
650 }
651
652 int UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis))
653 {
654 if (method)
655 {
656 method->ui_write_string = writer;
657 return 0;
658 }
659 else
660 return -1;
661 }
662
663 int UI_method_set_flusher(UI_METHOD *method, int (*flusher)(UI *ui))
664 {
665 if (method)
666 {
667 method->ui_flush = flusher;
668 return 0;
669 }
670 else
671 return -1;
672 }
673
674 int UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis))
675 {
676 if (method)
677 {
678 method->ui_read_string = reader;
679 return 0;
680 }
681 else
682 return -1;
683 }
684
685 int UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui))
686 {
687 if (method)
688 {
689 method->ui_close_session = closer;
690 return 0;
691 }
692 else
693 return -1;
694 }
695
696 int UI_method_set_prompt_constructor(UI_METHOD *method, char *(*prompt_constructor)(UI* ui, const char* object_desc, const char* object_name))
697 {
698 if (method)
699 {
700 method->ui_construct_prompt = prompt_constructor;
701 return 0;
702 }
703 else
704 return -1;
705 }
706
707 int (*UI_method_get_opener(UI_METHOD *method))(UI*)
708 {
709 if (method)
710 return method->ui_open_session;
711 else
712 return NULL;
713 }
714
715 int (*UI_method_get_writer(UI_METHOD *method))(UI*,UI_STRING*)
716 {
717 if (method)
718 return method->ui_write_string;
719 else
720 return NULL;
721 }
722
723 int (*UI_method_get_flusher(UI_METHOD *method))(UI*)
724 {
725 if (method)
726 return method->ui_flush;
727 else
728 return NULL;
729 }
730
731 int (*UI_method_get_reader(UI_METHOD *method))(UI*,UI_STRING*)
732 {
733 if (method)
734 return method->ui_read_string;
735 else
736 return NULL;
737 }
738
739 int (*UI_method_get_closer(UI_METHOD *method))(UI*)
740 {
741 if (method)
742 return method->ui_close_session;
743 else
744 return NULL;
745 }
746
747 char* (*UI_method_get_prompt_constructor(UI_METHOD *method))(UI*, const char*, const char*)
748 {
749 if (method)
750 return method->ui_construct_prompt;
751 else
752 return NULL;
753 }
754
755 enum UI_string_types UI_get_string_type(UI_STRING *uis)
756 {
757 if (!uis)
758 return UIT_NONE;
759 return uis->type;
760 }
761
762 int UI_get_input_flags(UI_STRING *uis)
763 {
764 if (!uis)
765 return 0;
766 return uis->input_flags;
767 }
768
769 const char *UI_get0_output_string(UI_STRING *uis)
770 {
771 if (!uis)
772 return NULL;
773 return uis->out_string;
774 }
775
776 const char *UI_get0_action_string(UI_STRING *uis)
777 {
778 if (!uis)
779 return NULL;
780 switch(uis->type)
781 {
782 case UIT_PROMPT:
783 case UIT_BOOLEAN:
784 return uis->_.boolean_data.action_desc;
785 default:
786 return NULL;
787 }
788 }
789
790 const char *UI_get0_result_string(UI_STRING *uis)
791 {
792 if (!uis)
793 return NULL;
794 switch(uis->type)
795 {
796 case UIT_PROMPT:
797 case UIT_VERIFY:
798 return uis->result_buf;
799 default:
800 return NULL;
801 }
802 }
803
804 const char *UI_get0_test_string(UI_STRING *uis)
805 {
806 if (!uis)
807 return NULL;
808 switch(uis->type)
809 {
810 case UIT_VERIFY:
811 return uis->_.string_data.test_buf;
812 default:
813 return NULL;
814 }
815 }
816
817 int UI_get_result_minsize(UI_STRING *uis)
818 {
819 if (!uis)
820 return -1;
821 switch(uis->type)
822 {
823 case UIT_PROMPT:
824 case UIT_VERIFY:
825 return uis->_.string_data.result_minsize;
826 default:
827 return -1;
828 }
829 }
830
831 int UI_get_result_maxsize(UI_STRING *uis)
832 {
833 if (!uis)
834 return -1;
835 switch(uis->type)
836 {
837 case UIT_PROMPT:
838 case UIT_VERIFY:
839 return uis->_.string_data.result_maxsize;
840 default:
841 return -1;
842 }
843 }
844
845 int UI_set_result(UI *ui, UI_STRING *uis, const char *result)
846 {
847 int l = strlen(result);
848
849 ui->flags &= ~UI_FLAG_REDOABLE;
850
851 if (!uis)
852 return -1;
853 switch (uis->type)
854 {
855 case UIT_PROMPT:
856 case UIT_VERIFY:
857 {
858 char number1[DECIMAL_SIZE(uis->_.string_data.result_minsize)+1];
859 char number2[DECIMAL_SIZE(uis->_.string_data.result_maxsize)+1];
860
861 BIO_snprintf(number1, sizeof(number1), "%d",
862 uis->_.string_data.result_minsize);
863 BIO_snprintf(number2, sizeof(number2), "%d",
864 uis->_.string_data.result_maxsize);
865
866 if (l < uis->_.string_data.result_minsize)
867 {
868 ui->flags |= UI_FLAG_REDOABLE;
869 UIerr(UI_F_UI_SET_RESULT,UI_R_RESULT_TOO_SMALL);
870 ERR_add_error_data(5,"You must type in ",
871 number1," to ",number2," characters");
872 return -1;
873 }
874 if (l > uis->_.string_data.result_maxsize)
875 {
876 ui->flags |= UI_FLAG_REDOABLE;
877 UIerr(UI_F_UI_SET_RESULT,UI_R_RESULT_TOO_LARGE);
878 ERR_add_error_data(5,"You must type in ",
879 number1," to ",number2," characters");
880 return -1;
881 }
882 }
883
884 if (!uis->result_buf)
885 {
886 UIerr(UI_F_UI_SET_RESULT,UI_R_NO_RESULT_BUFFER);
887 return -1;
888 }
889
890 BUF_strlcpy(uis->result_buf, result,
891 uis->_.string_data.result_maxsize + 1);
892 break;
893 case UIT_BOOLEAN:
894 {
895 const char *p;
896
897 if (!uis->result_buf)
898 {
899 UIerr(UI_F_UI_SET_RESULT,UI_R_NO_RESULT_BUFFER);
900 return -1;
901 }
902
903 uis->result_buf[0] = '\0';
904 for(p = result; *p; p++)
905 {
906 if (strchr(uis->_.boolean_data.ok_chars, *p))
907 {
908 uis->result_buf[0] =
909 uis->_.boolean_data.ok_chars[0];
910 break;
911 }
912 if (strchr(uis->_.boolean_data.cancel_chars, *p))
913 {
914 uis->result_buf[0] =
915 uis->_.boolean_data.cancel_chars[0];
916 break;
917 }
918 }
919 }
920 default:
921 break;
922 }
923 return 0;
924 }