1 /* $OpenBSD: ui_lib.c,v 1.30 2015/02/10 11:22:21 jsing 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_locl.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 77 UI * 78 UI_new_method(const UI_METHOD *method) 79 { 80 UI *ret; 81 82 ret = malloc(sizeof(UI)); 83 if (ret == NULL) { 84 UIerr(UI_F_UI_NEW_METHOD, ERR_R_MALLOC_FAILURE); 85 return NULL; 86 } 87 if (method == NULL) 88 ret->meth = UI_get_default_method(); 89 else 90 ret->meth = method; 91 92 ret->strings = NULL; 93 ret->user_data = NULL; 94 ret->flags = 0; 95 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_UI, ret, &ret->ex_data); 96 return ret; 97 } 98 99 static void 100 free_string(UI_STRING *uis) 101 { 102 if (uis->flags & OUT_STRING_FREEABLE) { 103 free((char *) uis->out_string); 104 switch (uis->type) { 105 case UIT_BOOLEAN: 106 free((char *)uis->_.boolean_data.action_desc); 107 free((char *)uis->_.boolean_data.ok_chars); 108 free((char *)uis->_.boolean_data.cancel_chars); 109 break; 110 default: 111 break; 112 } 113 } 114 free(uis); 115 } 116 117 void 118 UI_free(UI *ui) 119 { 120 if (ui == NULL) 121 return; 122 sk_UI_STRING_pop_free(ui->strings, free_string); 123 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_UI, ui, &ui->ex_data); 124 free(ui); 125 } 126 127 static int 128 allocate_string_stack(UI *ui) 129 { 130 if (ui->strings == NULL) { 131 ui->strings = sk_UI_STRING_new_null(); 132 if (ui->strings == NULL) { 133 return -1; 134 } 135 } 136 return 0; 137 } 138 139 static UI_STRING * 140 general_allocate_prompt(UI *ui, const char *prompt, int prompt_freeable, 141 enum UI_string_types type, int input_flags, char *result_buf) 142 { 143 UI_STRING *ret = NULL; 144 145 if (prompt == NULL) { 146 UIerr(UI_F_GENERAL_ALLOCATE_PROMPT, 147 ERR_R_PASSED_NULL_PARAMETER); 148 } else if ((type == UIT_PROMPT || type == UIT_VERIFY || 149 type == UIT_BOOLEAN) && result_buf == NULL) { 150 UIerr(UI_F_GENERAL_ALLOCATE_PROMPT, UI_R_NO_RESULT_BUFFER); 151 } else if ((ret = malloc(sizeof(UI_STRING)))) { 152 ret->out_string = prompt; 153 ret->flags = prompt_freeable ? OUT_STRING_FREEABLE : 0; 154 ret->input_flags = input_flags; 155 ret->type = type; 156 ret->result_buf = result_buf; 157 } 158 return ret; 159 } 160 161 static int 162 general_allocate_string(UI *ui, const char *prompt, int prompt_freeable, 163 enum UI_string_types type, int input_flags, char *result_buf, int minsize, 164 int maxsize, const char *test_buf) 165 { 166 int ret = -1; 167 UI_STRING *s = general_allocate_prompt(ui, prompt, prompt_freeable, 168 type, input_flags, result_buf); 169 170 if (s) { 171 if (allocate_string_stack(ui) >= 0) { 172 s->_.string_data.result_minsize = minsize; 173 s->_.string_data.result_maxsize = maxsize; 174 s->_.string_data.test_buf = test_buf; 175 ret = sk_UI_STRING_push(ui->strings, s); 176 /* sk_push() returns 0 on error. Let's adapt that */ 177 if (ret <= 0) 178 ret--; 179 } else 180 free_string(s); 181 } 182 return ret; 183 } 184 185 static int 186 general_allocate_boolean(UI *ui, const char *prompt, const char *action_desc, 187 const char *ok_chars, const char *cancel_chars, int prompt_freeable, 188 enum UI_string_types type, int input_flags, char *result_buf) 189 { 190 int ret = -1; 191 UI_STRING *s; 192 const char *p; 193 194 if (ok_chars == NULL) { 195 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN, 196 ERR_R_PASSED_NULL_PARAMETER); 197 } else if (cancel_chars == NULL) { 198 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN, 199 ERR_R_PASSED_NULL_PARAMETER); 200 } else { 201 for (p = ok_chars; *p; p++) { 202 if (strchr(cancel_chars, *p)) { 203 UIerr(UI_F_GENERAL_ALLOCATE_BOOLEAN, 204 UI_R_COMMON_OK_AND_CANCEL_CHARACTERS); 205 } 206 } 207 208 s = general_allocate_prompt(ui, prompt, prompt_freeable, 209 type, input_flags, result_buf); 210 211 if (s) { 212 if (allocate_string_stack(ui) >= 0) { 213 s->_.boolean_data.action_desc = action_desc; 214 s->_.boolean_data.ok_chars = ok_chars; 215 s->_.boolean_data.cancel_chars = cancel_chars; 216 ret = sk_UI_STRING_push(ui->strings, s); 217 /* 218 * sk_push() returns 0 on error. Let's adapt 219 * that 220 */ 221 if (ret <= 0) 222 ret--; 223 } else 224 free_string(s); 225 } 226 } 227 return ret; 228 } 229 230 /* Returns the index to the place in the stack or -1 for error. Uses a 231 direct reference to the prompt. */ 232 int 233 UI_add_input_string(UI *ui, const char *prompt, int flags, char *result_buf, 234 int minsize, int maxsize) 235 { 236 return general_allocate_string(ui, prompt, 0, UIT_PROMPT, flags, 237 result_buf, minsize, maxsize, NULL); 238 } 239 240 /* Same as UI_add_input_string(), excepts it takes a copy of the prompt */ 241 int 242 UI_dup_input_string(UI *ui, const char *prompt, int flags, char *result_buf, 243 int minsize, int maxsize) 244 { 245 char *prompt_copy = NULL; 246 247 if (prompt) { 248 prompt_copy = strdup(prompt); 249 if (prompt_copy == NULL) { 250 UIerr(UI_F_UI_DUP_INPUT_STRING, ERR_R_MALLOC_FAILURE); 251 return 0; 252 } 253 } 254 return general_allocate_string(ui, prompt_copy, 1, UIT_PROMPT, flags, 255 result_buf, minsize, maxsize, NULL); 256 } 257 258 int 259 UI_add_verify_string(UI *ui, const char *prompt, int flags, char *result_buf, 260 int minsize, int maxsize, const char *test_buf) 261 { 262 return general_allocate_string(ui, prompt, 0, UIT_VERIFY, flags, 263 result_buf, minsize, maxsize, test_buf); 264 } 265 266 int 267 UI_dup_verify_string(UI *ui, const char *prompt, int flags, 268 char *result_buf, int minsize, int maxsize, const char *test_buf) 269 { 270 char *prompt_copy = NULL; 271 272 if (prompt) { 273 prompt_copy = strdup(prompt); 274 if (prompt_copy == NULL) { 275 UIerr(UI_F_UI_DUP_VERIFY_STRING, ERR_R_MALLOC_FAILURE); 276 return -1; 277 } 278 } 279 return general_allocate_string(ui, prompt_copy, 1, UIT_VERIFY, flags, 280 result_buf, minsize, maxsize, test_buf); 281 } 282 283 int 284 UI_add_input_boolean(UI *ui, const char *prompt, const char *action_desc, 285 const char *ok_chars, const char *cancel_chars, int flags, char *result_buf) 286 { 287 return general_allocate_boolean(ui, prompt, action_desc, ok_chars, 288 cancel_chars, 0, UIT_BOOLEAN, flags, result_buf); 289 } 290 291 int 292 UI_dup_input_boolean(UI *ui, const char *prompt, const char *action_desc, 293 const char *ok_chars, const char *cancel_chars, int flags, char *result_buf) 294 { 295 char *prompt_copy = NULL; 296 char *action_desc_copy = NULL; 297 char *ok_chars_copy = NULL; 298 char *cancel_chars_copy = NULL; 299 300 if (prompt) { 301 prompt_copy = strdup(prompt); 302 if (prompt_copy == NULL) { 303 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE); 304 goto err; 305 } 306 } 307 if (action_desc) { 308 action_desc_copy = strdup(action_desc); 309 if (action_desc_copy == NULL) { 310 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE); 311 goto err; 312 } 313 } 314 if (ok_chars) { 315 ok_chars_copy = strdup(ok_chars); 316 if (ok_chars_copy == NULL) { 317 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE); 318 goto err; 319 } 320 } 321 if (cancel_chars) { 322 cancel_chars_copy = strdup(cancel_chars); 323 if (cancel_chars_copy == NULL) { 324 UIerr(UI_F_UI_DUP_INPUT_BOOLEAN, ERR_R_MALLOC_FAILURE); 325 goto err; 326 } 327 } 328 return general_allocate_boolean(ui, prompt_copy, action_desc_copy, 329 ok_chars_copy, cancel_chars_copy, 1, UIT_BOOLEAN, flags, 330 result_buf); 331 332 err: 333 free(prompt_copy); 334 free(action_desc_copy); 335 free(ok_chars_copy); 336 free(cancel_chars_copy); 337 return -1; 338 } 339 340 int 341 UI_add_info_string(UI *ui, const char *text) 342 { 343 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0, 344 NULL); 345 } 346 347 int 348 UI_dup_info_string(UI *ui, const char *text) 349 { 350 char *text_copy = NULL; 351 352 if (text) { 353 text_copy = strdup(text); 354 if (text_copy == NULL) { 355 UIerr(UI_F_UI_DUP_INFO_STRING, ERR_R_MALLOC_FAILURE); 356 return -1; 357 } 358 } 359 return general_allocate_string(ui, text_copy, 1, UIT_INFO, 0, NULL, 360 0, 0, NULL); 361 } 362 363 int 364 UI_add_error_string(UI *ui, const char *text) 365 { 366 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0, 367 NULL); 368 } 369 370 int 371 UI_dup_error_string(UI *ui, const char *text) 372 { 373 char *text_copy = NULL; 374 375 if (text) { 376 text_copy = strdup(text); 377 if (text_copy == NULL) { 378 UIerr(UI_F_UI_DUP_ERROR_STRING, ERR_R_MALLOC_FAILURE); 379 return -1; 380 } 381 } 382 return general_allocate_string(ui, text_copy, 1, UIT_ERROR, 0, NULL, 383 0, 0, NULL); 384 } 385 386 char * 387 UI_construct_prompt(UI *ui, const char *object_desc, const char *object_name) 388 { 389 char *prompt; 390 391 if (ui->meth->ui_construct_prompt) 392 return ui->meth->ui_construct_prompt(ui, object_desc, 393 object_name); 394 395 if (object_desc == NULL) 396 return NULL; 397 398 if (object_name == NULL) { 399 if (asprintf(&prompt, "Enter %s:", object_desc) == -1) 400 return (NULL); 401 } else { 402 if (asprintf(&prompt, "Enter %s for %s:", object_desc, 403 object_name) == -1) 404 return (NULL); 405 } 406 407 return prompt; 408 } 409 410 void * 411 UI_add_user_data(UI *ui, void *user_data) 412 { 413 void *old_data = ui->user_data; 414 415 ui->user_data = user_data; 416 return old_data; 417 } 418 419 void * 420 UI_get0_user_data(UI *ui) 421 { 422 return ui->user_data; 423 } 424 425 const char * 426 UI_get0_result(UI *ui, int i) 427 { 428 if (i < 0) { 429 UIerr(UI_F_UI_GET0_RESULT, UI_R_INDEX_TOO_SMALL); 430 return NULL; 431 } 432 if (i >= sk_UI_STRING_num(ui->strings)) { 433 UIerr(UI_F_UI_GET0_RESULT, UI_R_INDEX_TOO_LARGE); 434 return NULL; 435 } 436 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i)); 437 } 438 439 static int 440 print_error(const char *str, size_t len, UI *ui) 441 { 442 UI_STRING uis; 443 444 memset(&uis, 0, sizeof(uis)); 445 uis.type = UIT_ERROR; 446 uis.out_string = str; 447 448 if (ui->meth->ui_write_string && 449 !ui->meth->ui_write_string(ui, &uis)) 450 return -1; 451 return 0; 452 } 453 454 int 455 UI_process(UI *ui) 456 { 457 int i, ok = 0; 458 459 if (ui->meth->ui_open_session && !ui->meth->ui_open_session(ui)) 460 return -1; 461 462 if (ui->flags & UI_FLAG_PRINT_ERRORS) 463 ERR_print_errors_cb( 464 (int (*)(const char *, size_t, void *)) print_error, 465 (void *)ui); 466 467 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) { 468 if (ui->meth->ui_write_string && 469 !ui->meth->ui_write_string(ui, 470 sk_UI_STRING_value(ui->strings, i))) { 471 ok = -1; 472 goto err; 473 } 474 } 475 476 if (ui->meth->ui_flush) 477 switch (ui->meth->ui_flush(ui)) { 478 case -1: /* Interrupt/Cancel/something... */ 479 ok = -2; 480 goto err; 481 case 0: /* Errors */ 482 ok = -1; 483 goto err; 484 default: /* Success */ 485 ok = 0; 486 break; 487 } 488 489 for (i = 0; i < sk_UI_STRING_num(ui->strings); i++) { 490 if (ui->meth->ui_read_string) { 491 switch (ui->meth->ui_read_string(ui, 492 sk_UI_STRING_value(ui->strings, i))) { 493 case -1: /* Interrupt/Cancel/something... */ 494 ui->flags &= ~UI_FLAG_REDOABLE; 495 ok = -2; 496 goto err; 497 case 0: /* Errors */ 498 ok = -1; 499 goto err; 500 default: /* Success */ 501 ok = 0; 502 break; 503 } 504 } 505 } 506 507 err: 508 if (ui->meth->ui_close_session && !ui->meth->ui_close_session(ui)) 509 return -1; 510 return ok; 511 } 512 513 int 514 UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void)) 515 { 516 if (ui == NULL) { 517 UIerr(UI_F_UI_CTRL, ERR_R_PASSED_NULL_PARAMETER); 518 return -1; 519 } 520 switch (cmd) { 521 case UI_CTRL_PRINT_ERRORS: 522 { 523 int save_flag = !!(ui->flags & UI_FLAG_PRINT_ERRORS); 524 if (i) 525 ui->flags |= UI_FLAG_PRINT_ERRORS; 526 else 527 ui->flags &= ~UI_FLAG_PRINT_ERRORS; 528 return save_flag; 529 } 530 case UI_CTRL_IS_REDOABLE: 531 return !!(ui->flags & UI_FLAG_REDOABLE); 532 default: 533 break; 534 } 535 UIerr(UI_F_UI_CTRL, UI_R_UNKNOWN_CONTROL_COMMAND); 536 return -1; 537 } 538 539 int 540 UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 541 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 542 { 543 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_UI, argl, argp, 544 new_func, dup_func, free_func); 545 } 546 547 int 548 UI_set_ex_data(UI *r, int idx, void *arg) 549 { 550 return (CRYPTO_set_ex_data(&r->ex_data, idx, arg)); 551 } 552 553 void * 554 UI_get_ex_data(UI *r, int idx) 555 { 556 return (CRYPTO_get_ex_data(&r->ex_data, idx)); 557 } 558 559 void 560 UI_set_default_method(const UI_METHOD *meth) 561 { 562 default_UI_meth = meth; 563 } 564 565 const UI_METHOD * 566 UI_get_default_method(void) 567 { 568 if (default_UI_meth == NULL) { 569 default_UI_meth = UI_OpenSSL(); 570 } 571 return default_UI_meth; 572 } 573 574 const UI_METHOD * 575 UI_get_method(UI *ui) 576 { 577 return ui->meth; 578 } 579 580 const UI_METHOD * 581 UI_set_method(UI *ui, const UI_METHOD *meth) 582 { 583 ui->meth = meth; 584 return ui->meth; 585 } 586 587 588 UI_METHOD * 589 UI_create_method(char *name) 590 { 591 UI_METHOD *ui_method = calloc(1, sizeof(UI_METHOD)); 592 593 if (ui_method && name) 594 ui_method->name = strdup(name); 595 596 return ui_method; 597 } 598 599 /* BIG FSCKING WARNING!!!! If you use this on a statically allocated method 600 (that is, it hasn't been allocated using UI_create_method(), you deserve 601 anything Murphy can throw at you and more! You have been warned. */ 602 void 603 UI_destroy_method(UI_METHOD *ui_method) 604 { 605 free(ui_method->name); 606 ui_method->name = NULL; 607 free(ui_method); 608 } 609 610 int 611 UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui)) 612 { 613 if (method) { 614 method->ui_open_session = opener; 615 return 0; 616 } else 617 return -1; 618 } 619 620 int 621 UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis)) 622 { 623 if (method) { 624 method->ui_write_string = writer; 625 return 0; 626 } else 627 return -1; 628 } 629 630 int 631 UI_method_set_flusher(UI_METHOD *method, int (*flusher)(UI *ui)) 632 { 633 if (method) { 634 method->ui_flush = flusher; 635 return 0; 636 } else 637 return -1; 638 } 639 640 int 641 UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis)) 642 { 643 if (method) { 644 method->ui_read_string = reader; 645 return 0; 646 } else 647 return -1; 648 } 649 650 int 651 UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui)) 652 { 653 if (method) { 654 method->ui_close_session = closer; 655 return 0; 656 } else 657 return -1; 658 } 659 660 int 661 UI_method_set_prompt_constructor(UI_METHOD *method, 662 char *(*prompt_constructor)(UI *ui, const char *object_desc, 663 const char *object_name)) 664 { 665 if (method) { 666 method->ui_construct_prompt = prompt_constructor; 667 return 0; 668 } else 669 return -1; 670 } 671 672 int 673 (*UI_method_get_opener(UI_METHOD * method))(UI *) 674 { 675 if (method) 676 return method->ui_open_session; 677 else 678 return NULL; 679 } 680 681 int 682 (*UI_method_get_writer(UI_METHOD *method))(UI *, UI_STRING *) 683 { 684 if (method) 685 return method->ui_write_string; 686 else 687 return NULL; 688 } 689 690 int 691 (*UI_method_get_flusher(UI_METHOD *method)) (UI *) 692 { 693 if (method) 694 return method->ui_flush; 695 else 696 return NULL; 697 } 698 699 int 700 (*UI_method_get_reader(UI_METHOD *method))(UI *, UI_STRING *) 701 { 702 if (method) 703 return method->ui_read_string; 704 else 705 return NULL; 706 } 707 708 int 709 (*UI_method_get_closer(UI_METHOD *method))(UI *) 710 { 711 if (method) 712 return method->ui_close_session; 713 else 714 return NULL; 715 } 716 717 char * 718 (*UI_method_get_prompt_constructor(UI_METHOD *method))(UI *, const char *, 719 const char *) 720 { 721 if (method) 722 return method->ui_construct_prompt; 723 else 724 return NULL; 725 } 726 727 enum UI_string_types 728 UI_get_string_type(UI_STRING *uis) 729 { 730 if (!uis) 731 return UIT_NONE; 732 return uis->type; 733 } 734 735 int 736 UI_get_input_flags(UI_STRING *uis) 737 { 738 if (!uis) 739 return 0; 740 return uis->input_flags; 741 } 742 743 const char * 744 UI_get0_output_string(UI_STRING *uis) 745 { 746 if (!uis) 747 return NULL; 748 return uis->out_string; 749 } 750 751 const char * 752 UI_get0_action_string(UI_STRING *uis) 753 { 754 if (!uis) 755 return NULL; 756 switch (uis->type) { 757 case UIT_PROMPT: 758 case UIT_BOOLEAN: 759 return uis->_.boolean_data.action_desc; 760 default: 761 return NULL; 762 } 763 } 764 765 const char * 766 UI_get0_result_string(UI_STRING *uis) 767 { 768 if (!uis) 769 return NULL; 770 switch (uis->type) { 771 case UIT_PROMPT: 772 case UIT_VERIFY: 773 return uis->result_buf; 774 default: 775 return NULL; 776 } 777 } 778 779 const char * 780 UI_get0_test_string(UI_STRING *uis) 781 { 782 if (!uis) 783 return NULL; 784 switch (uis->type) { 785 case UIT_VERIFY: 786 return uis->_.string_data.test_buf; 787 default: 788 return NULL; 789 } 790 } 791 792 int 793 UI_get_result_minsize(UI_STRING *uis) 794 { 795 if (!uis) 796 return -1; 797 switch (uis->type) { 798 case UIT_PROMPT: 799 case UIT_VERIFY: 800 return uis->_.string_data.result_minsize; 801 default: 802 return -1; 803 } 804 } 805 806 int 807 UI_get_result_maxsize(UI_STRING *uis) 808 { 809 if (!uis) 810 return -1; 811 switch (uis->type) { 812 case UIT_PROMPT: 813 case UIT_VERIFY: 814 return uis->_.string_data.result_maxsize; 815 default: 816 return -1; 817 } 818 } 819 820 int 821 UI_set_result(UI *ui, UI_STRING *uis, const char *result) 822 { 823 int l = strlen(result); 824 825 ui->flags &= ~UI_FLAG_REDOABLE; 826 827 if (!uis) 828 return -1; 829 switch (uis->type) { 830 case UIT_PROMPT: 831 case UIT_VERIFY: 832 if (l < uis->_.string_data.result_minsize) { 833 ui->flags |= UI_FLAG_REDOABLE; 834 UIerr(UI_F_UI_SET_RESULT, 835 UI_R_RESULT_TOO_SMALL); 836 ERR_asprintf_error_data 837 ("You must type in %d to %d characters", 838 uis->_.string_data.result_minsize, 839 uis->_.string_data.result_maxsize); 840 return -1; 841 } 842 if (l > uis->_.string_data.result_maxsize) { 843 ui->flags |= UI_FLAG_REDOABLE; 844 UIerr(UI_F_UI_SET_RESULT, 845 UI_R_RESULT_TOO_LARGE); 846 ERR_asprintf_error_data 847 ("You must type in %d to %d characters", 848 uis->_.string_data.result_minsize, 849 uis->_.string_data.result_maxsize); 850 return -1; 851 } 852 if (!uis->result_buf) { 853 UIerr(UI_F_UI_SET_RESULT, UI_R_NO_RESULT_BUFFER); 854 return -1; 855 } 856 strlcpy(uis->result_buf, result, 857 uis->_.string_data.result_maxsize + 1); 858 break; 859 case UIT_BOOLEAN: 860 { 861 const char *p; 862 863 if (!uis->result_buf) { 864 UIerr(UI_F_UI_SET_RESULT, UI_R_NO_RESULT_BUFFER); 865 return -1; 866 } 867 uis->result_buf[0] = '\0'; 868 for (p = result; *p; p++) { 869 if (strchr(uis->_.boolean_data.ok_chars, *p)) { 870 uis->result_buf[0] = 871 uis->_.boolean_data.ok_chars[0]; 872 break; 873 } 874 if (strchr(uis->_.boolean_data.cancel_chars, *p)) { 875 uis->result_buf[0] = 876 uis->_.boolean_data.cancel_chars[0]; 877 break; 878 } 879 } 880 default: 881 break; 882 } 883 } 884 return 0; 885 } 886