crypto/conf/conf_def.c

   1 /* crypto/conf/conf.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 /* Part of the code in here was originally in conf.c, which is now removed */
  60
  61 #include <stdio.h>
  62 #include <string.h>
  63 #include "cryptlib.h"
  64 #include <openssl/stack.h>
  65 #include <openssl/lhash.h>
  66 #include <openssl/conf.h>
  67 #include <openssl/conf_api.h>
  68 #include "conf_def.h"
  69 #include <openssl/buffer.h>
  70 #include <openssl/err.h>
  71
  72 static char *eat_ws(CONF *conf, char *p);
  73 static char *eat_alpha_numeric(CONF *conf, char *p);
  74 static void clear_comments(CONF *conf, char *p);
  75 static int str_copy(CONF *conf, char *section, char **to, char *from);
  76 static char *scan_quote(CONF *conf, char *p);
  77 static char *scan_dquote(CONF *conf, char *p);
  78 #define scan_esc(conf,p)        (((IS_EOF((conf),(p)[1]))?((p)+1):((p)+2)))
  79
  80 static CONF *def_create(CONF_METHOD *meth);
  81 static int def_init_default(CONF *conf);
  82 static int def_init_WIN32(CONF *conf);
  83 static int def_destroy(CONF *conf);
  84 static int def_destroy_data(CONF *conf);
  85 static int def_load(CONF *conf, const char *name, long *eline);
  86 static int def_load_bio(CONF *conf, BIO *bp, long *eline);
  87 static int def_dump(const CONF *conf, BIO *bp);
  88 static int def_is_number(const CONF *conf, char c);
  89 static int def_to_int(const CONF *conf, char c);
  90
  91 const char CONF_def_version[] = "CONF_def" OPENSSL_VERSION_PTEXT;
  92
  93 static CONF_METHOD default_method = {
  94     "OpenSSL default",
  95     def_create,
  96     def_init_default,
  97     def_destroy,
  98     def_destroy_data,
  99     def_load_bio,
 100     def_dump,
 101     def_is_number,
 102     def_to_int,
 103     def_load
 104 };
 105
 106 static CONF_METHOD WIN32_method = {
 107     "WIN32",
 108     def_create,
 109     def_init_WIN32,
 110     def_destroy,
 111     def_destroy_data,
 112     def_load_bio,
 113     def_dump,
 114     def_is_number,
 115     def_to_int,
 116     def_load
 117 };
 118
 119 CONF_METHOD *NCONF_default()
 120 {
 121     return &default_method;
 122 }
 123
 124 CONF_METHOD *NCONF_WIN32()
 125 {
 126     return &WIN32_method;
 127 }
 128
 129 static CONF *def_create(CONF_METHOD *meth)
 130 {
 131     CONF *ret;
 132
 133     ret = OPENSSL_malloc(sizeof(CONF) + sizeof(unsigned short *));
 134     if (ret)
 135         if (meth->init(ret) == 0) {
 136             OPENSSL_free(ret);
 137             ret = NULL;
 138         }
 139     return ret;
 140 }
 141
 142 static int def_init_default(CONF *conf)
 143 {
 144     if (conf == NULL)
 145         return 0;
 146
 147     conf->meth = &default_method;
 148     conf->meth_data = CONF_type_default;
 149     conf->data = NULL;
 150
 151     return 1;
 152 }
 153
 154 static int def_init_WIN32(CONF *conf)
 155 {
 156     if (conf == NULL)
 157         return 0;
 158
 159     conf->meth = &WIN32_method;
 160     conf->meth_data = (void *)CONF_type_win32;
 161     conf->data = NULL;
 162
 163     return 1;
 164 }
 165
 166 static int def_destroy(CONF *conf)
 167 {
 168     if (def_destroy_data(conf)) {
 169         OPENSSL_free(conf);
 170         return 1;
 171     }
 172     return 0;
 173 }
 174
 175 static int def_destroy_data(CONF *conf)
 176 {
 177     if (conf == NULL)
 178         return 0;
 179     _CONF_free_data(conf);
 180     return 1;
 181 }
 182
 183 static int def_load(CONF *conf, const char *name, long *line)
 184 {
 185     int ret;
 186     BIO *in = NULL;
 187
 188 #ifdef OPENSSL_SYS_VMS
 189     in = BIO_new_file(name, "r");
 190 #else
 191     in = BIO_new_file(name, "rb");
 192 #endif
 193     if (in == NULL) {
 194         if (ERR_GET_REASON(ERR_peek_last_error()) == BIO_R_NO_SUCH_FILE)
 195             CONFerr(CONF_F_DEF_LOAD, CONF_R_NO_SUCH_FILE);
 196         else
 197             CONFerr(CONF_F_DEF_LOAD, ERR_R_SYS_LIB);
 198         return 0;
 199     }
 200
 201     ret = def_load_bio(conf, in, line);
 202     BIO_free(in);
 203
 204     return ret;
 205 }
 206
 207 static int def_load_bio(CONF *conf, BIO *in, long *line)
 208 {
 209 /* The macro BUFSIZE conflicts with a system macro in VxWorks */
 210 #define CONFBUFSIZE     512
 211     int bufnum = 0, i, ii;
 212     BUF_MEM *buff = NULL;
 213     char *s, *p, *end;
 214     int again;
 215     long eline = 0;
 216     char btmp[DECIMAL_SIZE(eline) + 1];
 217     CONF_VALUE *v = NULL, *tv;
 218     CONF_VALUE *sv = NULL;
 219     char *section = NULL, *buf;
 220     char *start, *psection, *pname;
 221     void *h = (void *)(conf->data);
 222
 223     if ((buff = BUF_MEM_new()) == NULL) {
 224         CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_BUF_LIB);
 225         goto err;
 226     }
 227
 228     section = BUF_strdup("default");
 229     if (section == NULL) {
 230         CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE);
 231         goto err;
 232     }
 233
 234     if (_CONF_new_data(conf) == 0) {
 235         CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE);
 236         goto err;
 237     }
 238
 239     sv = _CONF_new_section(conf, section);
 240     if (sv == NULL) {
 241         CONFerr(CONF_F_DEF_LOAD_BIO, CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 242         goto err;
 243     }
 244
 245     bufnum = 0;
 246     again = 0;
 247     for (;;) {
 248         if (!BUF_MEM_grow(buff, bufnum + CONFBUFSIZE)) {
 249             CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_BUF_LIB);
 250             goto err;
 251         }
 252         p = &(buff->data[bufnum]);
 253         *p = '\0';
 254         BIO_gets(in, p, CONFBUFSIZE - 1);
 255         p[CONFBUFSIZE - 1] = '\0';
 256         ii = i = strlen(p);
 257         if (i == 0 && !again)
 258             break;
 259         again = 0;
 260         while (i > 0) {
 261             if ((p[i - 1] != '\r') && (p[i - 1] != '\n'))
 262                 break;
 263             else
 264                 i--;
 265         }
 266         /*
 267          * we removed some trailing stuff so there is a new line on the end.
 268          */
 269         if (ii && i == ii)
 270             again = 1;          /* long line */
 271         else {
 272             p[i] = '\0';
 273             eline++;            /* another input line */
 274         }
 275
 276         /* we now have a line with trailing \r\n removed */
 277
 278         /* i is the number of bytes */
 279         bufnum += i;
 280
 281         v = NULL;
 282         /* check for line continuation */
 283         if (bufnum >= 1) {
 284             /*
 285              * If we have bytes and the last char '\\' and second last char
 286              * is not '\\'
 287              */
 288             p = &(buff->data[bufnum - 1]);
 289             if (IS_ESC(conf, p[0]) && ((bufnum <= 1) || !IS_ESC(conf, p[-1]))) {
 290                 bufnum--;
 291                 again = 1;
 292             }
 293         }
 294         if (again)
 295             continue;
 296         bufnum = 0;
 297         buf = buff->data;
 298
 299         clear_comments(conf, buf);
 300         s = eat_ws(conf, buf);
 301         if (IS_EOF(conf, *s))
 302             continue;           /* blank line */
 303         if (*s == '[') {
 304             char *ss;
 305
 306             s++;
 307             start = eat_ws(conf, s);
 308             ss = start;
 309  again:
 310             end = eat_alpha_numeric(conf, ss);
 311             p = eat_ws(conf, end);
 312             if (*p != ']') {
 313                 if (*p != '\0' && ss != p) {
 314                     ss = p;
 315                     goto again;
 316                 }
 317                 CONFerr(CONF_F_DEF_LOAD_BIO,
 318                         CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
 319                 goto err;
 320             }
 321             *end = '\0';
 322             if (!str_copy(conf, NULL, &section, start))
 323                 goto err;
 324             if ((sv = _CONF_get_section(conf, section)) == NULL)
 325                 sv = _CONF_new_section(conf, section);
 326             if (sv == NULL) {
 327                 CONFerr(CONF_F_DEF_LOAD_BIO,
 328                         CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 329                 goto err;
 330             }
 331             continue;
 332         } else {
 333             pname = s;
 334             psection = NULL;
 335             end = eat_alpha_numeric(conf, s);
 336             if ((end[0] == ':') && (end[1] == ':')) {
 337                 *end = '\0';
 338                 end += 2;
 339                 psection = pname;
 340                 pname = end;
 341                 end = eat_alpha_numeric(conf, end);
 342             }
 343             p = eat_ws(conf, end);
 344             if (*p != '=') {
 345                 CONFerr(CONF_F_DEF_LOAD_BIO, CONF_R_MISSING_EQUAL_SIGN);
 346                 goto err;
 347             }
 348             *end = '\0';
 349             p++;
 350             start = eat_ws(conf, p);
 351             while (!IS_EOF(conf, *p))
 352                 p++;
 353             p--;
 354             while ((p != start) && (IS_WS(conf, *p)))
 355                 p--;
 356             p++;
 357             *p = '\0';
 358
 359             if (!(v = (CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE)))) {
 360                 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE);
 361                 goto err;
 362             }
 363             if (psection == NULL)
 364                 psection = section;
 365             v->name = (char *)OPENSSL_malloc(strlen(pname) + 1);
 366             v->value = NULL;
 367             if (v->name == NULL) {
 368                 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE);
 369                 goto err;
 370             }
 371             BUF_strlcpy(v->name, pname, strlen(pname) + 1);
 372             if (!str_copy(conf, psection, &(v->value), start))
 373                 goto err;
 374
 375             if (strcmp(psection, section) != 0) {
 376                 if ((tv = _CONF_get_section(conf, psection))
 377                     == NULL)
 378                     tv = _CONF_new_section(conf, psection);
 379                 if (tv == NULL) {
 380                     CONFerr(CONF_F_DEF_LOAD_BIO,
 381                             CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 382                     goto err;
 383                 }
 384             } else
 385                 tv = sv;
 386 #if 1
 387             if (_CONF_add_string(conf, tv, v) == 0) {
 388                 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE);
 389                 goto err;
 390             }
 391 #else
 392             v->section = tv->section;
 393             if (!sk_CONF_VALUE_push(ts, v)) {
 394                 CONFerr(CONF_F_DEF_LOAD_BIO, ERR_R_MALLOC_FAILURE);
 395                 goto err;
 396             }
 397             vv = (CONF_VALUE *)lh_insert(conf->data, v);
 398             if (vv != NULL) {
 399                 sk_CONF_VALUE_delete_ptr(ts, vv);
 400                 OPENSSL_free(vv->name);
 401                 OPENSSL_free(vv->value);
 402                 OPENSSL_free(vv);
 403             }
 404 #endif
 405             v = NULL;
 406         }
 407     }
 408     if (buff != NULL)
 409         BUF_MEM_free(buff);
 410     if (section != NULL)
 411         OPENSSL_free(section);
 412     return (1);
 413  err:
 414     if (buff != NULL)
 415         BUF_MEM_free(buff);
 416     if (section != NULL)
 417         OPENSSL_free(section);
 418     if (line != NULL)
 419         *line = eline;
 420     BIO_snprintf(btmp, sizeof btmp, "%ld", eline);
 421     ERR_add_error_data(2, "line ", btmp);
 422     if ((h != conf->data) && (conf->data != NULL)) {
 423         CONF_free(conf->data);
 424         conf->data = NULL;
 425     }
 426     if (v != NULL) {
 427         if (v->name != NULL)
 428             OPENSSL_free(v->name);
 429         if (v->value != NULL)
 430             OPENSSL_free(v->value);
 431         if (v != NULL)
 432             OPENSSL_free(v);
 433     }
 434     return (0);
 435 }
 436
 437 static void clear_comments(CONF *conf, char *p)
 438 {
 439     for (;;) {
 440         if (IS_FCOMMENT(conf, *p)) {
 441             *p = '\0';
 442             return;
 443         }
 444         if (!IS_WS(conf, *p)) {
 445             break;
 446         }
 447         p++;
 448     }
 449
 450     for (;;) {
 451         if (IS_COMMENT(conf, *p)) {
 452             *p = '\0';
 453             return;
 454         }
 455         if (IS_DQUOTE(conf, *p)) {
 456             p = scan_dquote(conf, p);
 457             continue;
 458         }
 459         if (IS_QUOTE(conf, *p)) {
 460             p = scan_quote(conf, p);
 461             continue;
 462         }
 463         if (IS_ESC(conf, *p)) {
 464             p = scan_esc(conf, p);
 465             continue;
 466         }
 467         if (IS_EOF(conf, *p))
 468             return;
 469         else
 470             p++;
 471     }
 472 }
 473
 474 static int str_copy(CONF *conf, char *section, char **pto, char *from)
 475 {
 476     int q, r, rr = 0, to = 0, len = 0;
 477     char *s, *e, *rp, *p, *rrp, *np, *cp, v;
 478     BUF_MEM *buf;
 479
 480     if ((buf = BUF_MEM_new()) == NULL)
 481         return (0);
 482
 483     len = strlen(from) + 1;
 484     if (!BUF_MEM_grow(buf, len))
 485         goto err;
 486
 487     for (;;) {
 488         if (IS_QUOTE(conf, *from)) {
 489             q = *from;
 490             from++;
 491             while (!IS_EOF(conf, *from) && (*from != q)) {
 492                 if (IS_ESC(conf, *from)) {
 493                     from++;
 494                     if (IS_EOF(conf, *from))
 495                         break;
 496                 }
 497                 buf->data[to++] = *(from++);
 498             }
 499             if (*from == q)
 500                 from++;
 501         } else if (IS_DQUOTE(conf, *from)) {
 502             q = *from;
 503             from++;
 504             while (!IS_EOF(conf, *from)) {
 505                 if (*from == q) {
 506                     if (*(from + 1) == q) {
 507                         from++;
 508                     } else {
 509                         break;
 510                     }
 511                 }
 512                 buf->data[to++] = *(from++);
 513             }
 514             if (*from == q)
 515                 from++;
 516         } else if (IS_ESC(conf, *from)) {
 517             from++;
 518             v = *(from++);
 519             if (IS_EOF(conf, v))
 520                 break;
 521             else if (v == 'r')
 522                 v = '\r';
 523             else if (v == 'n')
 524                 v = '\n';
 525             else if (v == 'b')
 526                 v = '\b';
 527             else if (v == 't')
 528                 v = '\t';
 529             buf->data[to++] = v;
 530         } else if (IS_EOF(conf, *from))
 531             break;
 532         else if (*from == '$') {
 533             /* try to expand it */
 534             rrp = NULL;
 535             s = &(from[1]);
 536             if (*s == '{')
 537                 q = '}';
 538             else if (*s == '(')
 539                 q = ')';
 540             else
 541                 q = 0;
 542
 543             if (q)
 544                 s++;
 545             cp = section;
 546             e = np = s;
 547             while (IS_ALPHA_NUMERIC(conf, *e))
 548                 e++;
 549             if ((e[0] == ':') && (e[1] == ':')) {
 550                 cp = np;
 551                 rrp = e;
 552                 rr = *e;
 553                 *rrp = '\0';
 554                 e += 2;
 555                 np = e;
 556                 while (IS_ALPHA_NUMERIC(conf, *e))
 557                     e++;
 558             }
 559             r = *e;
 560             *e = '\0';
 561             rp = e;
 562             if (q) {
 563                 if (r != q) {
 564                     CONFerr(CONF_F_STR_COPY, CONF_R_NO_CLOSE_BRACE);
 565                     goto err;
 566                 }
 567                 e++;
 568             }
 569             /*-
 570              * So at this point we have
 571              * np which is the start of the name string which is
 572              *   '\0' terminated.
 573              * cp which is the start of the section string which is
 574              *   '\0' terminated.
 575              * e is the 'next point after'.
 576              * r and rr are the chars replaced by the '\0'
 577              * rp and rrp is where 'r' and 'rr' came from.
 578              */
 579             p = _CONF_get_string(conf, cp, np);
 580             if (rrp != NULL)
 581                 *rrp = rr;
 582             *rp = r;
 583             if (p == NULL) {
 584                 CONFerr(CONF_F_STR_COPY, CONF_R_VARIABLE_HAS_NO_VALUE);
 585                 goto err;
 586             }
 587             if (!BUF_MEM_grow_clean(buf,
 588                         (strlen(p) + buf->length - (e - from)))) {
 589                 CONFerr(CONF_F_STR_COPY, ERR_R_MALLOC_FAILURE);
 590                 goto err;
 591             }
 592             while (*p)
 593                 buf->data[to++] = *(p++);
 594
 595             /*
 596              * Since we change the pointer 'from', we also have to change the
 597              * perceived length of the string it points at.  /RL
 598              */
 599             len -= e - from;
 600             from = e;
 601
 602             /*
 603              * In case there were no braces or parenthesis around the
 604              * variable reference, we have to put back the character that was
 605              * replaced with a '\0'.  /RL
 606              */
 607             *rp = r;
 608         } else
 609             buf->data[to++] = *(from++);
 610     }
 611     buf->data[to] = '\0';
 612     if (*pto != NULL)
 613         OPENSSL_free(*pto);
 614     *pto = buf->data;
 615     OPENSSL_free(buf);
 616     return (1);
 617  err:
 618     if (buf != NULL)
 619         BUF_MEM_free(buf);
 620     return (0);
 621 }
 622
 623 static char *eat_ws(CONF *conf, char *p)
 624 {
 625     while (IS_WS(conf, *p) && (!IS_EOF(conf, *p)))
 626         p++;
 627     return (p);
 628 }
 629
 630 static char *eat_alpha_numeric(CONF *conf, char *p)
 631 {
 632     for (;;) {
 633         if (IS_ESC(conf, *p)) {
 634             p = scan_esc(conf, p);
 635             continue;
 636         }
 637         if (!IS_ALPHA_NUMERIC_PUNCT(conf, *p))
 638             return (p);
 639         p++;
 640     }
 641 }
 642
 643 static char *scan_quote(CONF *conf, char *p)
 644 {
 645     int q = *p;
 646
 647     p++;
 648     while (!(IS_EOF(conf, *p)) && (*p != q)) {
 649         if (IS_ESC(conf, *p)) {
 650             p++;
 651             if (IS_EOF(conf, *p))
 652                 return (p);
 653         }
 654         p++;
 655     }
 656     if (*p == q)
 657         p++;
 658     return (p);
 659 }
 660
 661 static char *scan_dquote(CONF *conf, char *p)
 662 {
 663     int q = *p;
 664
 665     p++;
 666     while (!(IS_EOF(conf, *p))) {
 667         if (*p == q) {
 668             if (*(p + 1) == q) {
 669                 p++;
 670             } else {
 671                 break;
 672             }
 673         }
 674         p++;
 675     }
 676     if (*p == q)
 677         p++;
 678     return (p);
 679 }
 680
 681 static void dump_value_doall_arg(CONF_VALUE *a, BIO *out)
 682 {
 683     if (a->name)
 684         BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value);
 685     else
 686         BIO_printf(out, "[[%s]]\n", a->section);
 687 }
 688
 689 static IMPLEMENT_LHASH_DOALL_ARG_FN(dump_value, CONF_VALUE, BIO)
 690
 691 static int def_dump(const CONF *conf, BIO *out)
 692 {
 693     lh_CONF_VALUE_doall_arg(conf->data, LHASH_DOALL_ARG_FN(dump_value),
 694                             BIO, out);
 695     return 1;
 696 }
 697
 698 static int def_is_number(const CONF *conf, char c)
 699 {
 700     return IS_NUMBER(conf, c);
 701 }
 702
 703 static int def_to_int(const CONF *conf, char c)
 704 {
 705     return c - '0';
 706 }