1 /* $OpenBSD: ui_lib.c,v 1.29 2014/10/03 06:02:38 doug 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 IMPLEMENT_STACK_OF(UI_STRING_ST) 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 ok = -2; 495 goto err; 496 case 0: /* Errors */ 497 ok = -1; 498 goto err; 499 default: /* Success */ 500 ok = 0; 501 break; 502 } 503 } 504 } 505 506 err: 507 if (ui->meth->ui_close_session && !ui->meth->ui_close_session(ui)) 508 return -1; 509 return ok; 510 } 511 512 int 513 UI_ctrl(UI *ui, int cmd, long i, void *p, void (*f) (void)) 514 { 515 if (ui == NULL) { 516 UIerr(UI_F_UI_CTRL, ERR_R_PASSED_NULL_PARAMETER); 517 return -1; 518 } 519 switch (cmd) { 520 case UI_CTRL_PRINT_ERRORS: 521 { 522 int save_flag = !!(ui->flags & UI_FLAG_PRINT_ERRORS); 523 if (i) 524 ui->flags |= UI_FLAG_PRINT_ERRORS; 525 else 526 ui->flags &= ~UI_FLAG_PRINT_ERRORS; 527 return save_flag; 528 } 529 case UI_CTRL_IS_REDOABLE: 530 return !!(ui->flags & UI_FLAG_REDOABLE); 531 default: 532 break; 533 } 534 UIerr(UI_F_UI_CTRL, UI_R_UNKNOWN_CONTROL_COMMAND); 535 return -1; 536 } 537 538 int 539 UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 540 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 541 { 542 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_UI, argl, argp, 543 new_func, dup_func, free_func); 544 } 545 546 int 547 UI_set_ex_data(UI *r, int idx, void *arg) 548 { 549 return (CRYPTO_set_ex_data(&r->ex_data, idx, arg)); 550 } 551 552 void * 553 UI_get_ex_data(UI *r, int idx) 554 { 555 return (CRYPTO_get_ex_data(&r->ex_data, idx)); 556 } 557 558 void 559 UI_set_default_method(const UI_METHOD *meth) 560 { 561 default_UI_meth = meth; 562 } 563 564 const UI_METHOD * 565 UI_get_default_method(void) 566 { 567 if (default_UI_meth == NULL) { 568 default_UI_meth = UI_OpenSSL(); 569 } 570 return default_UI_meth; 571 } 572 573 const UI_METHOD * 574 UI_get_method(UI *ui) 575 { 576 return ui->meth; 577 } 578 579 const UI_METHOD * 580 UI_set_method(UI *ui, const UI_METHOD *meth) 581 { 582 ui->meth = meth; 583 return ui->meth; 584 } 585 586 587 UI_METHOD * 588 UI_create_method(char *name) 589 { 590 UI_METHOD *ui_method = calloc(1, sizeof(UI_METHOD)); 591 592 if (ui_method && name) 593 ui_method->name = strdup(name); 594 595 return ui_method; 596 } 597 598 /* BIG FSCKING WARNING!!!! If you use this on a statically allocated method 599 (that is, it hasn't been allocated using UI_create_method(), you deserve 600 anything Murphy can throw at you and more! You have been warned. */ 601 void 602 UI_destroy_method(UI_METHOD *ui_method) 603 { 604 free(ui_method->name); 605 ui_method->name = NULL; 606 free(ui_method); 607 } 608 609 int 610 UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui)) 611 { 612 if (method) { 613 method->ui_open_session = opener; 614 return 0; 615 } else 616 return -1; 617 } 618 619 int 620 UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis)) 621 { 622 if (method) { 623 method->ui_write_string = writer; 624 return 0; 625 } else 626 return -1; 627 } 628 629 int 630 UI_method_set_flusher(UI_METHOD *method, int (*flusher)(UI *ui)) 631 { 632 if (method) { 633 method->ui_flush = flusher; 634 return 0; 635 } else 636 return -1; 637 } 638 639 int 640 UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis)) 641 { 642 if (method) { 643 method->ui_read_string = reader; 644 return 0; 645 } else 646 return -1; 647 } 648 649 int 650 UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui)) 651 { 652 if (method) { 653 method->ui_close_session = closer; 654 return 0; 655 } else 656 return -1; 657 } 658 659 int 660 UI_method_set_prompt_constructor(UI_METHOD *method, 661 char *(*prompt_constructor)(UI *ui, const char *object_desc, 662 const char *object_name)) 663 { 664 if (method) { 665 method->ui_construct_prompt = prompt_constructor; 666 return 0; 667 } else 668 return -1; 669 } 670 671 int 672 (*UI_method_get_opener(UI_METHOD * method))(UI *) 673 { 674 if (method) 675 return method->ui_open_session; 676 else 677 return NULL; 678 } 679 680 int 681 (*UI_method_get_writer(UI_METHOD *method))(UI *, UI_STRING *) 682 { 683 if (method) 684 return method->ui_write_string; 685 else 686 return NULL; 687 } 688 689 int 690 (*UI_method_get_flusher(UI_METHOD *method)) (UI *) 691 { 692 if (method) 693 return method->ui_flush; 694 else 695 return NULL; 696 } 697 698 int 699 (*UI_method_get_reader(UI_METHOD *method))(UI *, UI_STRING *) 700 { 701 if (method) 702 return method->ui_read_string; 703 else 704 return NULL; 705 } 706 707 int 708 (*UI_method_get_closer(UI_METHOD *method))(UI *) 709 { 710 if (method) 711 return method->ui_close_session; 712 else 713 return NULL; 714 } 715 716 char * 717 (*UI_method_get_prompt_constructor(UI_METHOD *method))(UI *, const char *, 718 const char *) 719 { 720 if (method) 721 return method->ui_construct_prompt; 722 else 723 return NULL; 724 } 725 726 enum UI_string_types 727 UI_get_string_type(UI_STRING *uis) 728 { 729 if (!uis) 730 return UIT_NONE; 731 return uis->type; 732 } 733 734 int 735 UI_get_input_flags(UI_STRING *uis) 736 { 737 if (!uis) 738 return 0; 739 return uis->input_flags; 740 } 741 742 const char * 743 UI_get0_output_string(UI_STRING *uis) 744 { 745 if (!uis) 746 return NULL; 747 return uis->out_string; 748 } 749 750 const char * 751 UI_get0_action_string(UI_STRING *uis) 752 { 753 if (!uis) 754 return NULL; 755 switch (uis->type) { 756 case UIT_PROMPT: 757 case UIT_BOOLEAN: 758 return uis->_.boolean_data.action_desc; 759 default: 760 return NULL; 761 } 762 } 763 764 const char * 765 UI_get0_result_string(UI_STRING *uis) 766 { 767 if (!uis) 768 return NULL; 769 switch (uis->type) { 770 case UIT_PROMPT: 771 case UIT_VERIFY: 772 return uis->result_buf; 773 default: 774 return NULL; 775 } 776 } 777 778 const char * 779 UI_get0_test_string(UI_STRING *uis) 780 { 781 if (!uis) 782 return NULL; 783 switch (uis->type) { 784 case UIT_VERIFY: 785 return uis->_.string_data.test_buf; 786 default: 787 return NULL; 788 } 789 } 790 791 int 792 UI_get_result_minsize(UI_STRING *uis) 793 { 794 if (!uis) 795 return -1; 796 switch (uis->type) { 797 case UIT_PROMPT: 798 case UIT_VERIFY: 799 return uis->_.string_data.result_minsize; 800 default: 801 return -1; 802 } 803 } 804 805 int 806 UI_get_result_maxsize(UI_STRING *uis) 807 { 808 if (!uis) 809 return -1; 810 switch (uis->type) { 811 case UIT_PROMPT: 812 case UIT_VERIFY: 813 return uis->_.string_data.result_maxsize; 814 default: 815 return -1; 816 } 817 } 818 819 int 820 UI_set_result(UI *ui, UI_STRING *uis, const char *result) 821 { 822 int l = strlen(result); 823 824 ui->flags &= ~UI_FLAG_REDOABLE; 825 826 if (!uis) 827 return -1; 828 switch (uis->type) { 829 case UIT_PROMPT: 830 case UIT_VERIFY: 831 if (l < uis->_.string_data.result_minsize) { 832 ui->flags |= UI_FLAG_REDOABLE; 833 UIerr(UI_F_UI_SET_RESULT, 834 UI_R_RESULT_TOO_SMALL); 835 ERR_asprintf_error_data 836 ("You must type in %d to %d characters", 837 uis->_.string_data.result_minsize, 838 uis->_.string_data.result_maxsize); 839 return -1; 840 } 841 if (l > uis->_.string_data.result_maxsize) { 842 ui->flags |= UI_FLAG_REDOABLE; 843 UIerr(UI_F_UI_SET_RESULT, 844 UI_R_RESULT_TOO_LARGE); 845 ERR_asprintf_error_data 846 ("You must type in %d to %d characters", 847 uis->_.string_data.result_minsize, 848 uis->_.string_data.result_maxsize); 849 return -1; 850 } 851 if (!uis->result_buf) { 852 UIerr(UI_F_UI_SET_RESULT, UI_R_NO_RESULT_BUFFER); 853 return -1; 854 } 855 strlcpy(uis->result_buf, result, 856 uis->_.string_data.result_maxsize + 1); 857 break; 858 case UIT_BOOLEAN: 859 { 860 const char *p; 861 862 if (!uis->result_buf) { 863 UIerr(UI_F_UI_SET_RESULT, UI_R_NO_RESULT_BUFFER); 864 return -1; 865 } 866 uis->result_buf[0] = '\0'; 867 for (p = result; *p; p++) { 868 if (strchr(uis->_.boolean_data.ok_chars, *p)) { 869 uis->result_buf[0] = 870 uis->_.boolean_data.ok_chars[0]; 871 break; 872 } 873 if (strchr(uis->_.boolean_data.cancel_chars, *p)) { 874 uis->result_buf[0] = 875 uis->_.boolean_data.cancel_chars[0]; 876 break; 877 } 878 } 879 default: 880 break; 881 } 882 } 883 return 0; 884 } 885