1/* 2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10/* Part of the code in here was originally in conf.c, which is now removed */ 11 12#include <stdio.h> 13#include <string.h> 14#include "internal/cryptlib.h" 15#include "internal/o_dir.h" 16#include <openssl/lhash.h> 17#include <openssl/conf.h> 18#include <openssl/conf_api.h> 19#include "conf_def.h" 20#include <openssl/buffer.h> 21#include <openssl/err.h> 22#ifndef OPENSSL_NO_POSIX_IO 23# include <sys/stat.h> 24# ifdef _WIN32 25# define stat _stat 26# define strcasecmp _stricmp 27# endif 28#endif 29 30#ifndef S_ISDIR 31# define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR) 32#endif 33 34/* 35 * The maximum length we can grow a value to after variable expansion. 64k 36 * should be more than enough for all reasonable uses. 37 */ 38#define MAX_CONF_VALUE_LENGTH 65536 39 40static int is_keytype(const CONF *conf, char c, unsigned short type); 41static char *eat_ws(CONF *conf, char *p); 42static void trim_ws(CONF *conf, char *start); 43static char *eat_alpha_numeric(CONF *conf, char *p); 44static void clear_comments(CONF *conf, char *p); 45static int str_copy(CONF *conf, char *section, char **to, char *from); 46static char *scan_quote(CONF *conf, char *p); 47static char *scan_dquote(CONF *conf, char *p); 48#define scan_esc(conf,p) (((IS_EOF((conf),(p)[1]))?((p)+1):((p)+2))) 49#ifndef OPENSSL_NO_POSIX_IO 50static BIO *process_include(char *include, OPENSSL_DIR_CTX **dirctx, 51 char **dirpath); 52static BIO *get_next_file(const char *path, OPENSSL_DIR_CTX **dirctx); 53#endif 54 55static CONF *def_create(CONF_METHOD *meth); 56static int def_init_default(CONF *conf); 57static int def_init_WIN32(CONF *conf); 58static int def_destroy(CONF *conf); 59static int def_destroy_data(CONF *conf); 60static int def_load(CONF *conf, const char *name, long *eline); 61static int def_load_bio(CONF *conf, BIO *bp, long *eline); 62static int def_dump(const CONF *conf, BIO *bp); 63static int def_is_number(const CONF *conf, char c); 64static int def_to_int(const CONF *conf, char c); 65 66static CONF_METHOD default_method = { 67 "OpenSSL default", 68 def_create, 69 def_init_default, 70 def_destroy, 71 def_destroy_data, 72 def_load_bio, 73 def_dump, 74 def_is_number, 75 def_to_int, 76 def_load 77}; 78 79static CONF_METHOD WIN32_method = { 80 "WIN32", 81 def_create, 82 def_init_WIN32, 83 def_destroy, 84 def_destroy_data, 85 def_load_bio, 86 def_dump, 87 def_is_number, 88 def_to_int, 89 def_load 90}; 91 92CONF_METHOD *NCONF_default(void) 93{ 94 return &default_method; 95} 96 97CONF_METHOD *NCONF_WIN32(void) 98{ 99 return &WIN32_method; 100} 101 102static CONF *def_create(CONF_METHOD *meth) 103{ 104 CONF *ret; 105 106 ret = OPENSSL_malloc(sizeof(*ret)); 107 if (ret != NULL) 108 if (meth->init(ret) == 0) { 109 OPENSSL_free(ret); 110 ret = NULL; 111 } 112 return ret; 113} 114 115static int def_init_default(CONF *conf) 116{ 117 if (conf == NULL) 118 return 0; 119 120 conf->meth = &default_method; 121 conf->meth_data = (void *)CONF_type_default; 122 conf->data = NULL; 123 124 return 1; 125} 126 127static int def_init_WIN32(CONF *conf) 128{ 129 if (conf == NULL) 130 return 0; 131 132 conf->meth = &WIN32_method; 133 conf->meth_data = (void *)CONF_type_win32; 134 conf->data = NULL; 135 136 return 1; 137} 138 139static int def_destroy(CONF *conf) 140{ 141 if (def_destroy_data(conf)) { 142 OPENSSL_free(conf); 143 return 1; 144 } 145 return 0; 146} 147 148static int def_destroy_data(CONF *conf) 149{ 150 if (conf == NULL) 151 return 0; 152 _CONF_free_data(conf); 153 return 1; 154} 155 156static int def_load(CONF *conf, const char *name, long *line) 157{ 158 int ret; 159 BIO *in = NULL; 160 161#ifdef OPENSSL_SYS_VMS 162 in = BIO_new_file(name, "r"); 163#else 164 in = BIO_new_file(name, "rb"); 165#endif 166 if (in == NULL) { 167 if (ERR_GET_REASON(ERR_peek_last_error()) == BIO_R_NO_SUCH_FILE) 168 CONFerr(CONF_F_DEF_LOAD, CONF_R_NO_SUCH_FILE); 169 else 170 CONFerr(CONF_F_DEF_LOAD, ERR_R_SYS_LIB); 171 return 0; 172 } 173 174 ret = def_load_bio(conf, in, line); 175 BIO_free(in); 176 177 return ret; 178} 179 180static int def_load_bio(CONF *conf, BIO *in, long *line) 181{ 182/* The macro BUFSIZE conflicts with a system macro in VxWorks */ 183#define CONFBUFSIZE 512 184 int bufnum = 0, i, ii; 185 BUF_MEM *buff = NULL; 186 char *s, *p, *end; 187 int again; 188 int first_call = 1; 189 long eline = 0; 190 char btmp[DECIMAL_SIZE(eline) + 1]; 191 CONF_VALUE *v = NULL, *tv; 192 CONF_VALUE *sv = NULL; 193 char *section = NULL, *buf; 194 char *start, *psection, *pname; 195 void *h = (void *)(conf->data); 196 STACK_OF(BIO) *biosk = NULL; 197#ifndef OPENSSL_NO_POSIX_IO 198 char *dirpath = NULL; 199 OPENSSL_DIR_CTX *dirctx = NULL; 200#endif 201 202 if ((buff = BUF_MEM_new()) == NULL) { 203 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_BUF_LIB); 204 goto err; 205 } 206 207 section = OPENSSL_strdup("default"); 208 if (section == NULL) { 209 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 210 goto err; 211 } 212 213 if (_CONF_new_data(conf) == 0) { 214 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 215 goto err; 216 } 217 218 sv = _CONF_new_section(conf, section); 219 if (sv == NULL) { 220 CONFerr(CONF_F_DEF_LOAD_BIO, CONF_R_UNABLE_TO_CREATE_NEW_SECTION); 221 goto err; 222 } 223 224 bufnum = 0; 225 again = 0; 226 for (;;) { 227 if (!BUF_MEM_grow(buff, bufnum + CONFBUFSIZE)) { 228 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_BUF_LIB); 229 goto err; 230 } 231 p = &(buff->data[bufnum]); 232 *p = '\0'; 233 read_retry: 234 BIO_gets(in, p, CONFBUFSIZE - 1); 235 p[CONFBUFSIZE - 1] = '\0'; 236 ii = i = strlen(p); 237 if (first_call) { 238 /* Other BOMs imply unsupported multibyte encoding, 239 * so don't strip them and let the error raise */ 240 const unsigned char utf8_bom[3] = {0xEF, 0xBB, 0xBF}; 241 242 if (i >= 3 && memcmp(p, utf8_bom, 3) == 0) { 243 memmove(p, p + 3, i - 3); 244 p[i - 3] = 0; 245 i -= 3; 246 ii -= 3; 247 } 248 first_call = 0; 249 } 250 if (i == 0 && !again) { 251 /* the currently processed BIO is at EOF */ 252 BIO *parent; 253 254#ifndef OPENSSL_NO_POSIX_IO 255 /* continue processing with the next file from directory */ 256 if (dirctx != NULL) { 257 BIO *next; 258 259 if ((next = get_next_file(dirpath, &dirctx)) != NULL) { 260 BIO_vfree(in); 261 in = next; 262 goto read_retry; 263 } else { 264 OPENSSL_free(dirpath); 265 dirpath = NULL; 266 } 267 } 268#endif 269 /* no more files in directory, continue with processing parent */ 270 if ((parent = sk_BIO_pop(biosk)) == NULL) { 271 /* everything processed get out of the loop */ 272 break; 273 } else { 274 BIO_vfree(in); 275 in = parent; 276 goto read_retry; 277 } 278 } 279 again = 0; 280 while (i > 0) { 281 if ((p[i - 1] != '\r') && (p[i - 1] != '\n')) 282 break; 283 else 284 i--; 285 } 286 /* 287 * we removed some trailing stuff so there is a new line on the end. 288 */ 289 if (ii && i == ii) 290 again = 1; /* long line */ 291 else { 292 p[i] = '\0'; 293 eline++; /* another input line */ 294 } 295 296 /* we now have a line with trailing \r\n removed */ 297 298 /* i is the number of bytes */ 299 bufnum += i; 300 301 v = NULL; 302 /* check for line continuation */ 303 if (bufnum >= 1) { 304 /* 305 * If we have bytes and the last char '\\' and second last char 306 * is not '\\' 307 */ 308 p = &(buff->data[bufnum - 1]); 309 if (IS_ESC(conf, p[0]) && ((bufnum <= 1) || !IS_ESC(conf, p[-1]))) { 310 bufnum--; 311 again = 1; 312 } 313 } 314 if (again) 315 continue; 316 bufnum = 0; 317 buf = buff->data; 318 319 clear_comments(conf, buf); 320 s = eat_ws(conf, buf); 321 if (IS_EOF(conf, *s)) 322 continue; /* blank line */ 323 if (*s == '[') { 324 char *ss; 325 326 s++; 327 start = eat_ws(conf, s); 328 ss = start; 329 again: 330 end = eat_alpha_numeric(conf, ss); 331 p = eat_ws(conf, end); 332 if (*p != ']') { 333 if (*p != '\0' && ss != p) { 334 ss = p; 335 goto again; 336 } 337 CONFerr(CONF_F_DEF_LOAD_BIO, 338 CONF_R_MISSING_CLOSE_SQUARE_BRACKET); 339 goto err; 340 } 341 *end = '\0'; 342 if (!str_copy(conf, NULL, §ion, start)) 343 goto err; 344 if ((sv = _CONF_get_section(conf, section)) == NULL) 345 sv = _CONF_new_section(conf, section); 346 if (sv == NULL) { 347 CONFerr(CONF_F_DEF_LOAD_BIO, 348 CONF_R_UNABLE_TO_CREATE_NEW_SECTION); 349 goto err; 350 } 351 continue; 352 } else { 353 pname = s; 354 end = eat_alpha_numeric(conf, s); 355 if ((end[0] == ':') && (end[1] == ':')) { 356 *end = '\0'; 357 end += 2; 358 psection = pname; 359 pname = end; 360 end = eat_alpha_numeric(conf, end); 361 } else { 362 psection = section; 363 } 364 p = eat_ws(conf, end); 365 if (strncmp(pname, ".include", 8) == 0 366 && (p != pname + 8 || *p == '=')) { 367 char *include = NULL; 368 BIO *next; 369 370 if (*p == '=') { 371 p++; 372 p = eat_ws(conf, p); 373 } 374 trim_ws(conf, p); 375 if (!str_copy(conf, psection, &include, p)) 376 goto err; 377 /* get the BIO of the included file */ 378#ifndef OPENSSL_NO_POSIX_IO 379 next = process_include(include, &dirctx, &dirpath); 380 if (include != dirpath) { 381 /* dirpath will contain include in case of a directory */ 382 OPENSSL_free(include); 383 } 384#else 385 next = BIO_new_file(include, "r"); 386 OPENSSL_free(include); 387#endif 388 if (next != NULL) { 389 /* push the currently processing BIO onto stack */ 390 if (biosk == NULL) { 391 if ((biosk = sk_BIO_new_null()) == NULL) { 392 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 393 BIO_free(next); 394 goto err; 395 } 396 } 397 if (!sk_BIO_push(biosk, in)) { 398 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 399 BIO_free(next); 400 goto err; 401 } 402 /* continue with reading from the included BIO */ 403 in = next; 404 } 405 continue; 406 } else if (*p != '=') { 407 CONFerr(CONF_F_DEF_LOAD_BIO, CONF_R_MISSING_EQUAL_SIGN); 408 goto err; 409 } 410 *end = '\0'; 411 p++; 412 start = eat_ws(conf, p); 413 trim_ws(conf, start); 414 415 if ((v = OPENSSL_malloc(sizeof(*v))) == NULL) { 416 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 417 goto err; 418 } 419 v->name = OPENSSL_strdup(pname); 420 v->value = NULL; 421 if (v->name == NULL) { 422 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 423 goto err; 424 } 425 if (!str_copy(conf, psection, &(v->value), start)) 426 goto err; 427 428 if (strcmp(psection, section) != 0) { 429 if ((tv = _CONF_get_section(conf, psection)) 430 == NULL) 431 tv = _CONF_new_section(conf, psection); 432 if (tv == NULL) { 433 CONFerr(CONF_F_DEF_LOAD_BIO, 434 CONF_R_UNABLE_TO_CREATE_NEW_SECTION); 435 goto err; 436 } 437 } else 438 tv = sv; 439 if (_CONF_add_string(conf, tv, v) == 0) { 440 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE); 441 goto err; 442 } 443 v = NULL; 444 } 445 } 446 BUF_MEM_free(buff); 447 OPENSSL_free(section); 448 /* 449 * No need to pop, since we only get here if the stack is empty. 450 * If this causes a BIO leak, THE ISSUE IS SOMEWHERE ELSE! 451 */ 452 sk_BIO_free(biosk); 453 return 1; 454 err: 455 BUF_MEM_free(buff); 456 OPENSSL_free(section); 457 /* 458 * Since |in| is the first element of the stack and should NOT be freed 459 * here, we cannot use sk_BIO_pop_free(). Instead, we pop and free one 460 * BIO at a time, making sure that the last one popped isn't. 461 */ 462 while (sk_BIO_num(biosk) > 0) { 463 BIO *popped = sk_BIO_pop(biosk); 464 BIO_vfree(in); 465 in = popped; 466 } 467 sk_BIO_free(biosk); 468#ifndef OPENSSL_NO_POSIX_IO 469 OPENSSL_free(dirpath); 470 if (dirctx != NULL) 471 OPENSSL_DIR_end(&dirctx); 472#endif 473 if (line != NULL) 474 *line = eline; 475 BIO_snprintf(btmp, sizeof(btmp), "%ld", eline); 476 ERR_add_error_data(2, "line ", btmp); 477 if (h != conf->data) { 478 CONF_free(conf->data); 479 conf->data = NULL; 480 } 481 if (v != NULL) { 482 OPENSSL_free(v->name); 483 OPENSSL_free(v->value); 484 OPENSSL_free(v); 485 } 486 return 0; 487} 488 489static void clear_comments(CONF *conf, char *p) 490{ 491 for (;;) { 492 if (IS_FCOMMENT(conf, *p)) { 493 *p = '\0'; 494 return; 495 } 496 if (!IS_WS(conf, *p)) { 497 break; 498 } 499 p++; 500 } 501 502 for (;;) { 503 if (IS_COMMENT(conf, *p)) { 504 *p = '\0'; 505 return; 506 } 507 if (IS_DQUOTE(conf, *p)) { 508 p = scan_dquote(conf, p); 509 continue; 510 } 511 if (IS_QUOTE(conf, *p)) { 512 p = scan_quote(conf, p); 513 continue; 514 } 515 if (IS_ESC(conf, *p)) { 516 p = scan_esc(conf, p); 517 continue; 518 } 519 if (IS_EOF(conf, *p)) 520 return; 521 else 522 p++; 523 } 524} 525 526static int str_copy(CONF *conf, char *section, char **pto, char *from) 527{ 528 int q, r, rr = 0, to = 0, len = 0; 529 char *s, *e, *rp, *p, *rrp, *np, *cp, v; 530 BUF_MEM *buf; 531 532 if ((buf = BUF_MEM_new()) == NULL) 533 return 0; 534 535 len = strlen(from) + 1; 536 if (!BUF_MEM_grow(buf, len)) 537 goto err; 538 539 for (;;) { 540 if (IS_QUOTE(conf, *from)) { 541 q = *from; 542 from++; 543 while (!IS_EOF(conf, *from) && (*from != q)) { 544 if (IS_ESC(conf, *from)) { 545 from++; 546 if (IS_EOF(conf, *from)) 547 break; 548 } 549 buf->data[to++] = *(from++); 550 } 551 if (*from == q) 552 from++; 553 } else if (IS_DQUOTE(conf, *from)) { 554 q = *from; 555 from++; 556 while (!IS_EOF(conf, *from)) { 557 if (*from == q) { 558 if (*(from + 1) == q) { 559 from++; 560 } else { 561 break; 562 } 563 } 564 buf->data[to++] = *(from++); 565 } 566 if (*from == q) 567 from++; 568 } else if (IS_ESC(conf, *from)) { 569 from++; 570 v = *(from++); 571 if (IS_EOF(conf, v)) 572 break; 573 else if (v == 'r') 574 v = '\r'; 575 else if (v == 'n') 576 v = '\n'; 577 else if (v == 'b') 578 v = '\b'; 579 else if (v == 't') 580 v = '\t'; 581 buf->data[to++] = v; 582 } else if (IS_EOF(conf, *from)) 583 break; 584 else if (*from == '$') { 585 size_t newsize; 586 587 /* try to expand it */ 588 rrp = NULL; 589 s = &(from[1]); 590 if (*s == '{') 591 q = '}'; 592 else if (*s == '(') 593 q = ')'; 594 else 595 q = 0; 596 597 if (q) 598 s++; 599 cp = section; 600 e = np = s; 601 while (IS_ALNUM(conf, *e)) 602 e++; 603 if ((e[0] == ':') && (e[1] == ':')) { 604 cp = np; 605 rrp = e; 606 rr = *e; 607 *rrp = '\0'; 608 e += 2; 609 np = e; 610 while (IS_ALNUM(conf, *e)) 611 e++; 612 } 613 r = *e; 614 *e = '\0'; 615 rp = e; 616 if (q) { 617 if (r != q) { 618 CONFerr(CONF_F_STR_COPY, CONF_R_NO_CLOSE_BRACE); 619 goto err; 620 } 621 e++; 622 } 623 /*- 624 * So at this point we have 625 * np which is the start of the name string which is 626 * '\0' terminated. 627 * cp which is the start of the section string which is 628 * '\0' terminated. 629 * e is the 'next point after'. 630 * r and rr are the chars replaced by the '\0' 631 * rp and rrp is where 'r' and 'rr' came from. 632 */ 633 p = _CONF_get_string(conf, cp, np); 634 if (rrp != NULL) 635 *rrp = rr; 636 *rp = r; 637 if (p == NULL) { 638 CONFerr(CONF_F_STR_COPY, CONF_R_VARIABLE_HAS_NO_VALUE); 639 goto err; 640 } 641 newsize = strlen(p) + buf->length - (e - from); 642 if (newsize > MAX_CONF_VALUE_LENGTH) { 643 CONFerr(CONF_F_STR_COPY, CONF_R_VARIABLE_EXPANSION_TOO_LONG); 644 goto err; 645 } 646 if (!BUF_MEM_grow_clean(buf, newsize)) { 647 CONFerr(CONF_F_STR_COPY, ERR_R_MALLOC_FAILURE); 648 goto err; 649 } 650 while (*p) 651 buf->data[to++] = *(p++); 652 653 /* 654 * Since we change the pointer 'from', we also have to change the 655 * perceived length of the string it points at. /RL 656 */ 657 len -= e - from; 658 from = e; 659 660 /* 661 * In case there were no braces or parenthesis around the 662 * variable reference, we have to put back the character that was 663 * replaced with a '\0'. /RL 664 */ 665 *rp = r; 666 } else 667 buf->data[to++] = *(from++); 668 } 669 buf->data[to] = '\0'; 670 OPENSSL_free(*pto); 671 *pto = buf->data; 672 OPENSSL_free(buf); 673 return 1; 674 err: 675 BUF_MEM_free(buf); 676 return 0; 677} 678 679#ifndef OPENSSL_NO_POSIX_IO 680/* 681 * Check whether included path is a directory. 682 * Returns next BIO to process and in case of a directory 683 * also an opened directory context and the include path. 684 */ 685static BIO *process_include(char *include, OPENSSL_DIR_CTX **dirctx, 686 char **dirpath) 687{ 688 struct stat st = { 0 }; 689 BIO *next; 690 691 if (stat(include, &st) < 0) { 692 SYSerr(SYS_F_STAT, errno); 693 ERR_add_error_data(1, include); 694 /* missing include file is not fatal error */ 695 return NULL; 696 } 697 698 if (S_ISDIR(st.st_mode)) { 699 if (*dirctx != NULL) { 700 CONFerr(CONF_F_PROCESS_INCLUDE, 701 CONF_R_RECURSIVE_DIRECTORY_INCLUDE); 702 ERR_add_error_data(1, include); 703 return NULL; 704 } 705 /* a directory, load its contents */ 706 if ((next = get_next_file(include, dirctx)) != NULL) 707 *dirpath = include; 708 return next; 709 } 710 711 next = BIO_new_file(include, "r"); 712 return next; 713} 714 715/* 716 * Get next file from the directory path. 717 * Returns BIO of the next file to read and updates dirctx. 718 */ 719static BIO *get_next_file(const char *path, OPENSSL_DIR_CTX **dirctx) 720{ 721 const char *filename; 722 size_t pathlen; 723 724 pathlen = strlen(path); 725 while ((filename = OPENSSL_DIR_read(dirctx, path)) != NULL) { 726 size_t namelen; 727 728 namelen = strlen(filename); 729 730 731 if ((namelen > 5 && strcasecmp(filename + namelen - 5, ".conf") == 0) 732 || (namelen > 4 && strcasecmp(filename + namelen - 4, ".cnf") == 0)) { 733 size_t newlen; 734 char *newpath; 735 BIO *bio; 736 737 newlen = pathlen + namelen + 2; 738 newpath = OPENSSL_zalloc(newlen); 739 if (newpath == NULL) { 740 CONFerr(CONF_F_GET_NEXT_FILE, ERR_R_MALLOC_FAILURE); 741 break; 742 } 743#ifdef OPENSSL_SYS_VMS 744 /* 745 * If the given path isn't clear VMS syntax, 746 * we treat it as on Unix. 747 */ 748 if (path[pathlen - 1] == ']' 749 || path[pathlen - 1] == '>' 750 || path[pathlen - 1] == ':') { 751 /* Clear VMS directory syntax, just copy as is */ 752 OPENSSL_strlcpy(newpath, path, newlen); 753 } 754#endif 755 if (newpath[0] == '\0') { 756 OPENSSL_strlcpy(newpath, path, newlen); 757 OPENSSL_strlcat(newpath, "/", newlen); 758 } 759 OPENSSL_strlcat(newpath, filename, newlen); 760 761 bio = BIO_new_file(newpath, "r"); 762 OPENSSL_free(newpath); 763 /* Errors when opening files are non-fatal. */ 764 if (bio != NULL) 765 return bio; 766 } 767 } 768 OPENSSL_DIR_end(dirctx); 769 *dirctx = NULL; 770 return NULL; 771} 772#endif 773 774static int is_keytype(const CONF *conf, char c, unsigned short type) 775{ 776 const unsigned short * keytypes = (const unsigned short *) conf->meth_data; 777 unsigned char key = (unsigned char)c; 778 779#ifdef CHARSET_EBCDIC 780# if CHAR_BIT > 8 781 if (key > 255) { 782 /* key is out of range for os_toascii table */ 783 return 0; 784 } 785# endif 786 /* convert key from ebcdic to ascii */ 787 key = os_toascii[key]; 788#endif 789 790 if (key > 127) { 791 /* key is not a seven bit ascii character */ 792 return 0; 793 } 794 795 return (keytypes[key] & type) ? 1 : 0; 796} 797 798static char *eat_ws(CONF *conf, char *p) 799{ 800 while (IS_WS(conf, *p) && (!IS_EOF(conf, *p))) 801 p++; 802 return p; 803} 804 805static void trim_ws(CONF *conf, char *start) 806{ 807 char *p = start; 808 809 while (!IS_EOF(conf, *p)) 810 p++; 811 p--; 812 while ((p >= start) && IS_WS(conf, *p)) 813 p--; 814 p++; 815 *p = '\0'; 816} 817 818static char *eat_alpha_numeric(CONF *conf, char *p) 819{ 820 for (;;) { 821 if (IS_ESC(conf, *p)) { 822 p = scan_esc(conf, p); 823 continue; 824 } 825 if (!IS_ALNUM_PUNCT(conf, *p)) 826 return p; 827 p++; 828 } 829} 830 831static char *scan_quote(CONF *conf, char *p) 832{ 833 int q = *p; 834 835 p++; 836 while (!(IS_EOF(conf, *p)) && (*p != q)) { 837 if (IS_ESC(conf, *p)) { 838 p++; 839 if (IS_EOF(conf, *p)) 840 return p; 841 } 842 p++; 843 } 844 if (*p == q) 845 p++; 846 return p; 847} 848 849static char *scan_dquote(CONF *conf, char *p) 850{ 851 int q = *p; 852 853 p++; 854 while (!(IS_EOF(conf, *p))) { 855 if (*p == q) { 856 if (*(p + 1) == q) { 857 p++; 858 } else { 859 break; 860 } 861 } 862 p++; 863 } 864 if (*p == q) 865 p++; 866 return p; 867} 868 869static void dump_value_doall_arg(const CONF_VALUE *a, BIO *out) 870{ 871 if (a->name) 872 BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value); 873 else 874 BIO_printf(out, "[[%s]]\n", a->section); 875} 876 877IMPLEMENT_LHASH_DOALL_ARG_CONST(CONF_VALUE, BIO); 878 879static int def_dump(const CONF *conf, BIO *out) 880{ 881 lh_CONF_VALUE_doall_BIO(conf->data, dump_value_doall_arg, out); 882 return 1; 883} 884 885static int def_is_number(const CONF *conf, char c) 886{ 887 return IS_NUMBER(conf, c); 888} 889 890static int def_to_int(const CONF *conf, char c) 891{ 892 return c - '0'; 893} 894