Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | default: |
| 920 | break; |
| 921 | } |
| 922 | } |
| 923 | return 0; |
| 924 | } |