1 /* $OpenBSD: ui_lib.c,v 1.51 2023/02/16 08:38:17 tb Exp $ */ 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 61 #include <openssl/opensslconf.h> 62 63 #include <openssl/buffer.h> 64 #include <openssl/err.h> 65 #include <openssl/ui.h> 66 67 #include "ui_local.h" 68 69 static const UI_METHOD *default_UI_meth = NULL; 70 71 UI * 72 UI_new(void) 73 { 74 return (UI_new_method(NULL)); 75 } 76 LCRYPTO_ALIAS(UI_new); 77 78 UI * 79 UI_new_method(const UI_METHOD *method) 80 { 81 UI *ret; 82 83 if ((ret = calloc(1, sizeof(UI))) == NULL) { 84 UIerror(ERR_R_MALLOC_FAILURE); 85 return NULL; 86 } 87 if ((ret->meth = method) == NULL) 88 ret->meth = UI_get_default_method(); 89 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI, ret, &ret->ex_data); 90 91 return ret; 92 } 93 LCRYPTO_ALIAS(UI_new_method); 94 95 static void 96 free_string(UI_STRING *uis) 97 { 98 if (uis == NULL) 99 return; 100 if (uis->flags & OUT_STRING_FREEABLE) { 101 free((char *) uis->out_string); 102 switch (uis->type) { 103 case UIT_BOOLEAN: 104 free((char *)uis->_.boolean_data.action_desc); 105 free((char *)uis->_.boolean_data.ok_chars); 106 free((char *)uis->_.boolean_data.cancel_chars); 107 break; 108 default: 109 break; 110 } 111 } 112 free(uis); 113 } 114 115 void 116 UI_free(UI *ui) 117 { 118 if (ui == NULL) 119 return; 120 121 sk_UI_STRING_pop_free(ui->strings, free_string); 122 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI, ui, &ui->ex_data); 123 free(ui); 124 } 125 LCRYPTO_ALIAS(UI_free); 126 127 static int 128 allocate_string_stack(UI *ui) 129 { 130 if (ui->strings == NULL) { 131 if ((ui->strings = sk_UI_STRING_new_null()) == NULL) { 132 UIerror(ERR_R_MALLOC_FAILURE); 133 return -1; 134 } 135 } 136 return 0; 137 } 138 139 static UI_STRING * 140 general_allocate_prompt(const char *prompt, int dup_prompt, 141 enum UI_string_types type, int input_flags, char *result_buf) 142 { 143 UI_STRING *uis = NULL; 144 145 if (prompt == NULL) { 146 UIerror(ERR_R_PASSED_NULL_PARAMETER); 147 goto err; 148 } 149 if ((type == UIT_PROMPT || type == UIT_VERIFY || type == UIT_BOOLEAN) && 150 result_buf == NULL) { 151 UIerror(UI_R_NO_RESULT_BUFFER); 152 goto err; 153 } 154 155 if ((uis = calloc(1, sizeof(UI_STRING))) == NULL) { 156 UIerror(ERR_R_MALLOC_FAILURE); 157 goto err; 158 } 159 uis->out_string = prompt; 160 if (dup_prompt) { 161 if ((uis->out_string = strdup(prompt)) == NULL) { 162 UIerror(ERR_R_MALLOC_FAILURE); 163 goto err; 164 } 165 uis->flags = OUT_STRING_FREEABLE; 166 } 167 uis->input_flags = input_flags; 168 uis->type = type; 169 uis->result_buf = result_buf; 170 171 return uis; 172 173 err: 174 free_string(uis); 175 return NULL; 176 } 177 178 static int 179 general_allocate_string(UI *ui, const char *prompt, int dup_prompt, 180 enum UI_string_types type, int input_flags, char *result_buf, int minsize, 181 int maxsize, const char *test_buf) 182 { 183 UI_STRING *s; 184 int ret; 185 186 if ((s = general_allocate_prompt(prompt, dup_prompt, type, input_flags, 187 result_buf)) == NULL) 188 goto err; 189 s->_.string_data.result_minsize = minsize; 190 s->_.string_data.result_maxsize = maxsize; 191 s->_.string_data.test_buf = test_buf; 192 193 if (allocate_string_stack(ui) < 0) 194 goto err; 195 if ((ret = sk_UI_STRING_push(ui->strings, s)) <= 0) 196 goto err; 197 198 return ret; 199 200 err: 201 free_string(s); 202 return -1; 203 } 204 205 static int 206 general_allocate_boolean(UI *ui, const char *prompt, const char *action_desc, 207 const char *ok_chars, const char *cancel_chars, int dup_strings, 208 enum UI_string_types type, int input_flags, char *result_buf) 209 { 210 UI_STRING *s = NULL; 211 int ret; 212 213 if (ok_chars == NULL || cancel_chars == NULL) { 214 UIerror(ERR_R_PASSED_NULL_PARAMETER); 215 goto err; 216 } 217 if (ok_chars[strcspn(ok_chars, cancel_chars)] != '\0') { 218 UIerror(UI_R_COMMON_OK_AND_CANCEL_CHARACTERS); 219 goto err; 220 } 221 222 if ((s = general_allocate_prompt(prompt, dup_strings, type, input_flags, 223 result_buf)) == NULL) 224 goto err; 225 226 if (dup_strings) { 227 if (action_desc != NULL) { 228 if ((s->_.boolean_data.action_desc = 229 strdup(action_desc)) == NULL) { 230 UIerror(ERR_R_MALLOC_FAILURE); 231 goto err; 232 } 233 } 234 if ((s->_.boolean_data.ok_chars = strdup(ok_chars)) == NULL) { 235 UIerror(ERR_R_MALLOC_FAILURE); 236 goto err; 237 } 238 if ((s->_.boolean_data.cancel_chars = strdup(cancel_chars)) == 239 NULL) { 240 UIerror(ERR_R_MALLOC_FAILURE); 241 goto err; 242 } 243 } else { 244 s->_.boolean_data.action_desc = action_desc; 245 s->_.boolean_data.ok_chars = ok_chars; 246 s->_.boolean_data.cancel_chars = cancel_chars; 247 } 248 249 if (allocate_string_stack(ui) < 0) 250 goto err; 251 if ((ret = sk_UI_STRING_push(ui->strings, s)) <= 0) 252 goto err; 253 254 return ret; 255 256 err: 257 free_string(s); 258 return -1; 259 } 260 261 /* 262 * Returns the index to the place in the stack or -1 for error. Uses a 263 * direct reference to the prompt. 264 */ 265 int 266 UI_add_input_string(UI *ui, const char *prompt, int flags, char *result_buf, 267 int minsize, int maxsize) 268 { 269 return general_allocate_string(ui, prompt, 0, UIT_PROMPT, flags, 270 result_buf, minsize, maxsize, NULL); 271 } 272 LCRYPTO_ALIAS(UI_add_input_string); 273 274 /* Same as UI_add_input_string(), excepts it takes a copy of the prompt. */ 275 int 276 UI_dup_input_string(UI *ui, const char *prompt, int flags, char *result_buf, 277 int minsize, int maxsize) 278 { 279 return general_allocate_string(ui, prompt, 1, UIT_PROMPT, flags, 280 result_buf, minsize, maxsize, NULL); 281 } 282 LCRYPTO_ALIAS(UI_dup_input_string); 283 284 int 285 UI_add_verify_string(UI *ui, const char *prompt, int flags, char *result_buf, 286 int minsize, int maxsize, const char *test_buf) 287 { 288 return general_allocate_string(ui, prompt, 0, UIT_VERIFY, flags, 289 result_buf, minsize, maxsize, test_buf); 290 } 291 LCRYPTO_ALIAS(UI_add_verify_string); 292 293 int 294 UI_dup_verify_string(UI *ui, const char *prompt, int flags, 295 char *result_buf, int minsize, int maxsize, const char *test_buf) 296 { 297 return general_allocate_string(ui, prompt, 1, UIT_VERIFY, flags, 298 result_buf, minsize, maxsize, test_buf); 299 } 300 LCRYPTO_ALIAS(UI_dup_verify_string); 301 302 int 303 UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc, 304 const char *ok_chars, const char *cancel_chars, int flags, char *result_buf) 305 { 306 return general_allocate_boolean(ui, prompt, action_desc, ok_chars, 307 cancel_chars, 0, UIT_BOOLEAN, flags, result_buf); 308 } 309 LCRYPTO_ALIAS(UI_add_input_boolean); 310 311 int 312 UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc, 313 const char *ok_chars, const char *cancel_chars, int flags, char *result_buf) 314 { 315 return general_allocate_boolean(ui, prompt, action_desc, ok_chars, 316 cancel_chars, 1, UIT_BOOLEAN, flags, result_buf); 317 } 318 LCRYPTO_ALIAS(UI_dup_input_boolean); 319 320 int 321 UI_add_info_string(UI *ui, const char *text) 322 { 323 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0, 324 NULL); 325 } 326 LCRYPTO_ALIAS(UI_add_info_string); 327 328 int 329 UI_dup_info_string(UI *ui, const char *text) 330 { 331 return general_allocate_string(ui, text, 1, UIT_INFO, 0, NULL, 0, 0, 332 NULL); 333 } 334 LCRYPTO_ALIAS(UI_dup_info_string); 335 336 int 337 UI_add_error_string(UI *ui, const char *text) 338 { 339 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0, 340 NULL); 341 } 342 LCRYPTO_ALIAS(UI_add_error_string); 343 344 int 345 UI_dup_error_string(UI *ui, const char *text) 346 { 347 return general_allocate_string(ui, text, 1, UIT_ERROR, 0, NULL, 0, 0, 348 NULL); 349 } 350 LCRYPTO_ALIAS(UI_dup_error_string); 351 352 char * 353 UI_construct_prompt(UI *ui, const char *object_desc, const char *object_name) 354 { 355 char *prompt; 356 357 if (ui->meth->ui_construct_prompt) 358 return ui->meth->ui_construct_prompt(ui, object_desc, 359 object_name); 360 361 if (object_desc == NULL) 362 return NULL; 363 364 if (object_name == NULL) { 365 if (asprintf(&prompt, "Enter %s:", object_desc) == -1) 366 return (NULL); 367 } else { 368 if (asprintf(&prompt, "Enter %s for %s:", object_desc, 369 object_name) == -1) 370 return (NULL); 371 } 372 373 return prompt; 374 } 375 LCRYPTO_ALIAS(UI_construct_prompt); 376 377 void * 378 UI_add_user_data(UI *ui, void *user_data) 379 { 380 void *old_data = ui->user_data; 381 382 ui->user_data = user_data; 383 384 return old_data; 385 } 386 LCRYPTO_ALIAS(UI_add_user_data); 387 388 void * 389 UI_get0_user_data(UI *ui) 390 { 391 return ui->user_data; 392 } 393 LCRYPTO_ALIAS(UI_get0_user_data); 394 395 const char * 396 UI_get0_result(UI *ui, int i) 397 { 398 if (i < 0) { 399 UIerror(UI_R_INDEX_TOO_SMALL); 400 return NULL; 401 } 402 if (i >= sk_UI_STRING_num(ui->strings)) { 403 UIerror(UI_R_INDEX_TOO_LARGE); 404 return NULL; 405 } 406 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i)); 407 } 408 LCRYPTO_ALIAS(UI_get0_result); 409 410 static int 411 print_error(const char *str, size_t len, void *arg) 412 { 413 UI *ui = arg; 414 UI_STRING uis; 415 416 memset(&uis, 0, sizeof(uis)); 417 uis.type = UIT_ERROR; 418 uis.out_string = str; 419 420 if (ui->meth->ui_write_string && 421 !ui->meth->ui_write_string(ui, &uis)) 422 return -1; 423 return 0; 424 } 425 426 int 427 UI_process(UI *ui) 428 { 429 int i, ok = 0; 430 431 if (ui->meth->ui_open_session && !ui->meth->ui_open_session(ui)) 432 return -1; 433 434 if (ui->flags & UI_FLAG_PRINT_ERRORS) 435 ERR_print_errors_cb(print_error, ui); 436 437 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) { 438 if (ui->meth->ui_write_string && 439 !ui->meth->ui_write_string(ui, 440 sk_UI_STRING_value(ui->strings, i))) { 441 ok = -1; 442 goto err; 443 } 444 } 445 446 if (ui->meth->ui_flush) 447 switch (ui->meth->ui_flush(ui)) { 448 case -1: /* Interrupt/Cancel/something... */ 449 ok = -2; 450 goto err; 451 case 0: /* Errors */ 452 ok = -1; 453 goto err; 454 default: /* Success */ 455 ok = 0; 456 break; 457 } 458 459 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) { 460 if (ui->meth->ui_read_string) { 461 switch (ui->meth->ui_read_string(ui, 462 sk_UI_STRING_value(ui->strings, i))) { 463 case -1: /* Interrupt/Cancel/something... */ 464 ui->flags &= ~UI_FLAG_REDOABLE; 465 ok = -2; 466 goto err; 467 case 0: /* Errors */ 468 ok = -1; 469 goto err; 470 default: /* Success */ 471 ok = 0; 472 break; 473 } 474 } 475 } 476 477 err: 478 if (ui->meth->ui_close_session && !ui->meth->ui_close_session(ui)) 479 return -1; 480 return ok; 481 } 482 LCRYPTO_ALIAS(UI_process); 483 484 int 485 UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void)) 486 { 487 if (ui == NULL) { 488 UIerror(ERR_R_PASSED_NULL_PARAMETER); 489 return -1; 490 } 491 492 switch (cmd) { 493 case UI_CTRL_PRINT_ERRORS: 494 { 495 int save_flag = !!(ui->flags & UI_FLAG_PRINT_ERRORS); 496 if (i) 497 ui->flags |= UI_FLAG_PRINT_ERRORS; 498 else 499 ui->flags &= ~UI_FLAG_PRINT_ERRORS; 500 return save_flag; 501 } 502 case UI_CTRL_IS_REDOABLE: 503 return !!(ui->flags & UI_FLAG_REDOABLE); 504 default: 505 break; 506 } 507 UIerror(UI_R_UNKNOWN_CONTROL_COMMAND); 508 return -1; 509 } 510 LCRYPTO_ALIAS(UI_ctrl); 511 512 int 513 UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 514 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 515 { 516 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_UI, argl, argp, 517 new_func, dup_func, free_func); 518 } 519 LCRYPTO_ALIAS(UI_get_ex_new_index); 520 521 int 522 UI_set_ex_data(UI *r, int idx, void *arg) 523 { 524 return (CRYPTO_set_ex_data(&r->ex_data, idx, arg)); 525 } 526 LCRYPTO_ALIAS(UI_set_ex_data); 527 528 void * 529 UI_get_ex_data(UI *r, int idx) 530 { 531 return (CRYPTO_get_ex_data(&r->ex_data, idx)); 532 } 533 LCRYPTO_ALIAS(UI_get_ex_data); 534 535 void 536 UI_set_default_method(const UI_METHOD *method) 537 { 538 default_UI_meth = method; 539 } 540 LCRYPTO_ALIAS(UI_set_default_method); 541 542 const UI_METHOD * 543 UI_get_default_method(void) 544 { 545 if (default_UI_meth == NULL) 546 default_UI_meth = UI_OpenSSL(); 547 548 return default_UI_meth; 549 } 550 LCRYPTO_ALIAS(UI_get_default_method); 551 552 const UI_METHOD * 553 UI_get_method(UI *ui) 554 { 555 return ui->meth; 556 } 557 LCRYPTO_ALIAS(UI_get_method); 558 559 const UI_METHOD * 560 UI_set_method(UI *ui, const UI_METHOD *method) 561 { 562 ui->meth = method; 563 564 return ui->meth; 565 } 566 LCRYPTO_ALIAS(UI_set_method); 567 568 UI_METHOD * 569 UI_create_method(const char *name) 570 { 571 UI_METHOD *method = NULL; 572 573 if ((method = calloc(1, sizeof(UI_METHOD))) == NULL) 574 goto err; 575 576 if (name != NULL) { 577 if ((method->name = strdup(name)) == NULL) 578 goto err; 579 } 580 581 return method; 582 583 err: 584 UI_destroy_method(method); 585 586 return NULL; 587 } 588 LCRYPTO_ALIAS(UI_create_method); 589 590 void 591 UI_destroy_method(UI_METHOD *method) 592 { 593 if (method == NULL) 594 return; 595 596 free(method->name); 597 free(method); 598 } 599 LCRYPTO_ALIAS(UI_destroy_method); 600 601 int 602 UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui)) 603 { 604 if (method == NULL) 605 return -1; 606 607 method->ui_open_session = opener; 608 609 return 0; 610 } 611 LCRYPTO_ALIAS(UI_method_set_opener); 612 613 int 614 UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis)) 615 { 616 if (method == NULL) 617 return -1; 618 619 method->ui_write_string = writer; 620 621 return 0; 622 } 623 LCRYPTO_ALIAS(UI_method_set_writer); 624 625 int 626 UI_method_set_flusher(UI_METHOD *method, int (*flusher)(UI *ui)) 627 { 628 if (method == NULL) 629 return -1; 630 631 method->ui_flush = flusher; 632 633 return 0; 634 } 635 LCRYPTO_ALIAS(UI_method_set_flusher); 636 637 int 638 UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis)) 639 { 640 if (method == NULL) 641 return -1; 642 643 method->ui_read_string = reader; 644 645 return 0; 646 } 647 LCRYPTO_ALIAS(UI_method_set_reader); 648 649 int 650 UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui)) 651 { 652 if (method == NULL) 653 return -1; 654 655 method->ui_close_session = closer; 656 657 return 0; 658 } 659 LCRYPTO_ALIAS(UI_method_set_closer); 660 661 int 662 UI_method_set_prompt_constructor(UI_METHOD *method, 663 char *(*prompt_constructor)(UI *ui, const char *object_desc, 664 const char *object_name)) 665 { 666 if (method == NULL) 667 return -1; 668 669 method->ui_construct_prompt = prompt_constructor; 670 671 return 0; 672 } 673 LCRYPTO_ALIAS(UI_method_set_prompt_constructor); 674 675 int 676 (*UI_method_get_opener(const UI_METHOD * method))(UI *) 677 { 678 if (method == NULL) 679 return NULL; 680 681 return method->ui_open_session; 682 } 683 LCRYPTO_ALIAS(UI_method_get_opener); 684 685 int 686 (*UI_method_get_writer(const UI_METHOD *method))(UI *, UI_STRING *) 687 { 688 if (method == NULL) 689 return NULL; 690 691 return method->ui_write_string; 692 } 693 LCRYPTO_ALIAS(UI_method_get_writer); 694 695 int 696 (*UI_method_get_flusher(const UI_METHOD *method)) (UI *) 697 { 698 if (method == NULL) 699 return NULL; 700 701 return method->ui_flush; 702 } 703 LCRYPTO_ALIAS(UI_method_get_flusher); 704 705 int 706 (*UI_method_get_reader(const UI_METHOD *method))(UI *, UI_STRING *) 707 { 708 if (method == NULL) 709 return NULL; 710 711 return method->ui_read_string; 712 } 713 LCRYPTO_ALIAS(UI_method_get_reader); 714 715 int 716 (*UI_method_get_closer(const UI_METHOD *method))(UI *) 717 { 718 if (method == NULL) 719 return NULL; 720 721 return method->ui_close_session; 722 } 723 LCRYPTO_ALIAS(UI_method_get_closer); 724 725 char * 726 (*UI_method_get_prompt_constructor(const UI_METHOD *method))(UI *, const char *, 727 const char *) 728 { 729 if (method == NULL) 730 return NULL; 731 732 return method->ui_construct_prompt; 733 } 734 LCRYPTO_ALIAS(UI_method_get_prompt_constructor); 735 736 enum UI_string_types 737 UI_get_string_type(UI_STRING *uis) 738 { 739 if (uis == NULL) 740 return UIT_NONE; 741 742 return uis->type; 743 } 744 LCRYPTO_ALIAS(UI_get_string_type); 745 746 int 747 UI_get_input_flags(UI_STRING *uis) 748 { 749 if (uis == NULL) 750 return 0; 751 752 return uis->input_flags; 753 } 754 LCRYPTO_ALIAS(UI_get_input_flags); 755 756 const char * 757 UI_get0_output_string(UI_STRING *uis) 758 { 759 if (uis == NULL) 760 return NULL; 761 762 return uis->out_string; 763 } 764 LCRYPTO_ALIAS(UI_get0_output_string); 765 766 const char * 767 UI_get0_action_string(UI_STRING *uis) 768 { 769 if (uis == NULL) 770 return NULL; 771 772 switch (uis->type) { 773 case UIT_PROMPT: 774 case UIT_BOOLEAN: 775 return uis->_.boolean_data.action_desc; 776 default: 777 return NULL; 778 } 779 } 780 LCRYPTO_ALIAS(UI_get0_action_string); 781 782 const char * 783 UI_get0_result_string(UI_STRING *uis) 784 { 785 if (uis == NULL) 786 return NULL; 787 788 switch (uis->type) { 789 case UIT_PROMPT: 790 case UIT_VERIFY: 791 return uis->result_buf; 792 default: 793 return NULL; 794 } 795 } 796 LCRYPTO_ALIAS(UI_get0_result_string); 797 798 const char * 799 UI_get0_test_string(UI_STRING *uis) 800 { 801 if (uis == NULL) 802 return NULL; 803 804 switch (uis->type) { 805 case UIT_VERIFY: 806 return uis->_.string_data.test_buf; 807 default: 808 return NULL; 809 } 810 } 811 LCRYPTO_ALIAS(UI_get0_test_string); 812 813 int 814 UI_get_result_minsize(UI_STRING *uis) 815 { 816 if (uis == NULL) 817 return -1; 818 819 switch (uis->type) { 820 case UIT_PROMPT: 821 case UIT_VERIFY: 822 return uis->_.string_data.result_minsize; 823 default: 824 return -1; 825 } 826 } 827 LCRYPTO_ALIAS(UI_get_result_minsize); 828 829 int 830 UI_get_result_maxsize(UI_STRING *uis) 831 { 832 if (uis == NULL) 833 return -1; 834 835 switch (uis->type) { 836 case UIT_PROMPT: 837 case UIT_VERIFY: 838 return uis->_.string_data.result_maxsize; 839 default: 840 return -1; 841 } 842 } 843 LCRYPTO_ALIAS(UI_get_result_maxsize); 844 845 int 846 UI_set_result(UI *ui, UI_STRING *uis, const char *result) 847 { 848 const char *p; 849 int l = strlen(result); 850 851 ui->flags &= ~UI_FLAG_REDOABLE; 852 853 if (uis == NULL) 854 return -1; 855 856 switch (uis->type) { 857 case UIT_PROMPT: 858 case UIT_VERIFY: 859 if (l < uis->_.string_data.result_minsize) { 860 ui->flags |= UI_FLAG_REDOABLE; 861 UIerror(UI_R_RESULT_TOO_SMALL); 862 ERR_asprintf_error_data 863 ("You must type in %d to %d characters", 864 uis->_.string_data.result_minsize, 865 uis->_.string_data.result_maxsize); 866 return -1; 867 } 868 if (l > uis->_.string_data.result_maxsize) { 869 ui->flags |= UI_FLAG_REDOABLE; 870 UIerror(UI_R_RESULT_TOO_LARGE); 871 ERR_asprintf_error_data 872 ("You must type in %d to %d characters", 873 uis->_.string_data.result_minsize, 874 uis->_.string_data.result_maxsize); 875 return -1; 876 } 877 if (!uis->result_buf) { 878 UIerror(UI_R_NO_RESULT_BUFFER); 879 return -1; 880 } 881 strlcpy(uis->result_buf, result, 882 uis->_.string_data.result_maxsize + 1); 883 break; 884 case UIT_BOOLEAN: 885 if (!uis->result_buf) { 886 UIerror(UI_R_NO_RESULT_BUFFER); 887 return -1; 888 } 889 uis->result_buf[0] = '\0'; 890 for (p = result; *p; p++) { 891 if (strchr(uis->_.boolean_data.ok_chars, *p)) { 892 uis->result_buf[0] = 893 uis->_.boolean_data.ok_chars[0]; 894 break; 895 } 896 if (strchr(uis->_.boolean_data.cancel_chars, *p)) { 897 uis->result_buf[0] = 898 uis->_.boolean_data.cancel_chars[0]; 899 break; 900 } 901 } 902 default: 903 break; 904 } 905 return 0; 906 } 907 LCRYPTO_ALIAS(UI_set_result); 908