crypto/openssl/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 CONF_METHOD *NCONF_WIN32()
 124         {
 125         return &WIN32_method;
 126         }
 127
 128 static CONF *def_create(CONF_METHOD *meth)
 129         {
 130         CONF *ret;
 131
 132         ret = (CONF *)OPENSSL_malloc(sizeof(CONF) + sizeof(unsigned short *));
 133         if (ret)
 134                 if (meth->init(ret) == 0)
 135                         {
 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 = (void *)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                 {
 170                 OPENSSL_free(conf);
 171                 return 1;
 172                 }
 173         return 0;
 174         }
 175
 176 static int def_destroy_data(CONF *conf)
 177         {
 178         if (conf == NULL)
 179                 return 0;
 180         _CONF_free_data(conf);
 181         return 1;
 182         }
 183
 184 static int def_load(CONF *conf, const char *name, long *line)
 185         {
 186         int ret;
 187         BIO *in=NULL;
 188
 189 #ifdef OPENSSL_SYS_VMS
 190         in=BIO_new_file(name, "r");
 191 #else
 192         in=BIO_new_file(name, "rb");
 193 #endif
 194         if (in == NULL)
 195                 {
 196                 if (ERR_GET_REASON(ERR_peek_last_error()) == BIO_R_NO_SUCH_FILE)
 197                         CONFerr(CONF_F_DEF_LOAD,CONF_R_NO_SUCH_FILE);
 198                 else
 199                         CONFerr(CONF_F_DEF_LOAD,ERR_R_SYS_LIB);
 200                 return 0;
 201                 }
 202
 203         ret = def_load_bio(conf, in, line);
 204         BIO_free(in);
 205
 206         return ret;
 207         }
 208
 209 static int def_load_bio(CONF *conf, BIO *in, long *line)
 210         {
 211 /* The macro BUFSIZE conflicts with a system macro in VxWorks */
 212 #define CONFBUFSIZE     512
 213         int bufnum=0,i,ii;
 214         BUF_MEM *buff=NULL;
 215         char *s,*p,*end;
 216         int again;
 217         long eline=0;
 218         char btmp[DECIMAL_SIZE(eline)+1];
 219         CONF_VALUE *v=NULL,*tv;
 220         CONF_VALUE *sv=NULL;
 221         char *section=NULL,*buf;
 222 /*      STACK_OF(CONF_VALUE) *section_sk=NULL;*/
 223 /*      STACK_OF(CONF_VALUE) *ts=NULL;*/
 224         char *start,*psection,*pname;
 225         void *h = (void *)(conf->data);
 226
 227         if ((buff=BUF_MEM_new()) == NULL)
 228                 {
 229                 CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_BUF_LIB);
 230                 goto err;
 231                 }
 232
 233         section=(char *)OPENSSL_malloc(10);
 234         if (section == NULL)
 235                 {
 236                 CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
 237                 goto err;
 238                 }
 239         BUF_strlcpy(section,"default",10);
 240
 241         if (_CONF_new_data(conf) == 0)
 242                 {
 243                 CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
 244                 goto err;
 245                 }
 246
 247         sv=_CONF_new_section(conf,section);
 248         if (sv == NULL)
 249                 {
 250                 CONFerr(CONF_F_DEF_LOAD_BIO,
 251                                         CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 252                 goto err;
 253                 }
 254 /*      section_sk=(STACK_OF(CONF_VALUE) *)sv->value;*/
 255
 256         bufnum=0;
 257         again=0;
 258         for (;;)
 259                 {
 260                 if (!BUF_MEM_grow(buff,bufnum+CONFBUFSIZE))
 261                         {
 262                         CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_BUF_LIB);
 263                         goto err;
 264                         }
 265                 p= &(buff->data[bufnum]);
 266                 *p='\0';
 267                 BIO_gets(in, p, CONFBUFSIZE-1);
 268                 p[CONFBUFSIZE-1]='\0';
 269                 ii=i=strlen(p);
 270                 if (i == 0 && !again) break;
 271                 again=0;
 272                 while (i > 0)
 273                         {
 274                         if ((p[i-1] != '\r') && (p[i-1] != '\n'))
 275                                 break;
 276                         else
 277                                 i--;
 278                         }
 279                 /* we removed some trailing stuff so there is a new
 280                  * line on the end. */
 281                 if (ii && i == ii)
 282                         again=1; /* long line */
 283                 else
 284                         {
 285                         p[i]='\0';
 286                         eline++; /* another input line */
 287                         }
 288
 289                 /* we now have a line with trailing \r\n removed */
 290
 291                 /* i is the number of bytes */
 292                 bufnum+=i;
 293
 294                 v=NULL;
 295                 /* check for line continuation */
 296                 if (bufnum >= 1)
 297                         {
 298                         /* If we have bytes and the last char '\\' and
 299                          * second last char is not '\\' */
 300                         p= &(buff->data[bufnum-1]);
 301                         if (IS_ESC(conf,p[0]) &&
 302                                 ((bufnum <= 1) || !IS_ESC(conf,p[-1])))
 303                                 {
 304                                 bufnum--;
 305                                 again=1;
 306                                 }
 307                         }
 308                 if (again) continue;
 309                 bufnum=0;
 310                 buf=buff->data;
 311
 312                 clear_comments(conf, buf);
 313                 s=eat_ws(conf, buf);
 314                 if (IS_EOF(conf,*s)) continue; /* blank line */
 315                 if (*s == '[')
 316                         {
 317                         char *ss;
 318
 319                         s++;
 320                         start=eat_ws(conf, s);
 321                         ss=start;
 322 again:
 323                         end=eat_alpha_numeric(conf, ss);
 324                         p=eat_ws(conf, end);
 325                         if (*p != ']')
 326                                 {
 327                                 if (*p != '\0')
 328                                         {
 329                                         ss=p;
 330                                         goto again;
 331                                         }
 332                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 333                                         CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
 334                                 goto err;
 335                                 }
 336                         *end='\0';
 337                         if (!str_copy(conf,NULL,&section,start)) goto err;
 338                         if ((sv=_CONF_get_section(conf,section)) == NULL)
 339                                 sv=_CONF_new_section(conf,section);
 340                         if (sv == NULL)
 341                                 {
 342                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 343                                         CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 344                                 goto err;
 345                                 }
 346 /*                      section_sk=(STACK_OF(CONF_VALUE) *)sv->value;*/
 347                         continue;
 348                         }
 349                 else
 350                         {
 351                         pname=s;
 352                         psection=NULL;
 353                         end=eat_alpha_numeric(conf, s);
 354                         if ((end[0] == ':') && (end[1] == ':'))
 355                                 {
 356                                 *end='\0';
 357                                 end+=2;
 358                                 psection=pname;
 359                                 pname=end;
 360                                 end=eat_alpha_numeric(conf, end);
 361                                 }
 362                         p=eat_ws(conf, end);
 363                         if (*p != '=')
 364                                 {
 365                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 366                                                 CONF_R_MISSING_EQUAL_SIGN);
 367                                 goto err;
 368                                 }
 369                         *end='\0';
 370                         p++;
 371                         start=eat_ws(conf, p);
 372                         while (!IS_EOF(conf,*p))
 373                                 p++;
 374                         p--;
 375                         while ((p != start) && (IS_WS(conf,*p)))
 376                                 p--;
 377                         p++;
 378                         *p='\0';
 379
 380                         if (!(v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))))
 381                                 {
 382                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 383                                                         ERR_R_MALLOC_FAILURE);
 384                                 goto err;
 385                                 }
 386                         if (psection == NULL) psection=section;
 387                         v->name=(char *)OPENSSL_malloc(strlen(pname)+1);
 388                         v->value=NULL;
 389                         if (v->name == NULL)
 390                                 {
 391                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 392                                                         ERR_R_MALLOC_FAILURE);
 393                                 goto err;
 394                                 }
 395                         BUF_strlcpy(v->name,pname,strlen(pname)+1);
 396                         if (!str_copy(conf,psection,&(v->value),start)) goto err;
 397
 398                         if (strcmp(psection,section) != 0)
 399                                 {
 400                                 if ((tv=_CONF_get_section(conf,psection))
 401                                         == NULL)
 402                                         tv=_CONF_new_section(conf,psection);
 403                                 if (tv == NULL)
 404                                         {
 405                                         CONFerr(CONF_F_DEF_LOAD_BIO,
 406                                            CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 407                                         goto err;
 408                                         }
 409 /*                              ts=(STACK_OF(CONF_VALUE) *)tv->value;*/
 410                                 }
 411                         else
 412                                 {
 413                                 tv=sv;
 414 /*                              ts=section_sk;*/
 415                                 }
 416 #if 1
 417                         if (_CONF_add_string(conf, tv, v) == 0)
 418                                 {
 419                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 420                                                         ERR_R_MALLOC_FAILURE);
 421                                 goto err;
 422                                 }
 423 #else
 424                         v->section=tv->section;
 425                         if (!sk_CONF_VALUE_push(ts,v))
 426                                 {
 427                                 CONFerr(CONF_F_DEF_LOAD_BIO,
 428                                                         ERR_R_MALLOC_FAILURE);
 429                                 goto err;
 430                                 }
 431                         vv=(CONF_VALUE *)lh_insert(conf->data,v);
 432                         if (vv != NULL)
 433                                 {
 434                                 sk_CONF_VALUE_delete_ptr(ts,vv);
 435                                 OPENSSL_free(vv->name);
 436                                 OPENSSL_free(vv->value);
 437                                 OPENSSL_free(vv);
 438                                 }
 439 #endif
 440                         v=NULL;
 441                         }
 442                 }
 443         if (buff != NULL) BUF_MEM_free(buff);
 444         if (section != NULL) OPENSSL_free(section);
 445         return(1);
 446 err:
 447         if (buff != NULL) BUF_MEM_free(buff);
 448         if (section != NULL) OPENSSL_free(section);
 449         if (line != NULL) *line=eline;
 450         BIO_snprintf(btmp,sizeof btmp,"%ld",eline);
 451         ERR_add_error_data(2,"line ",btmp);
 452         if ((h != conf->data) && (conf->data != NULL))
 453                 {
 454                 CONF_free(conf->data);
 455                 conf->data=NULL;
 456                 }
 457         if (v != NULL)
 458                 {
 459                 if (v->name != NULL) OPENSSL_free(v->name);
 460                 if (v->value != NULL) OPENSSL_free(v->value);
 461                 if (v != NULL) OPENSSL_free(v);
 462                 }
 463         return(0);
 464         }
 465
 466 static void clear_comments(CONF *conf, char *p)
 467         {
 468         for (;;)
 469                 {
 470                 if (IS_FCOMMENT(conf,*p))
 471                         {
 472                         *p='\0';
 473                         return;
 474                         }
 475                 if (!IS_WS(conf,*p))
 476                         {
 477                         break;
 478                         }
 479                 p++;
 480                 }
 481
 482         for (;;)
 483                 {
 484                 if (IS_COMMENT(conf,*p))
 485                         {
 486                         *p='\0';
 487                         return;
 488                         }
 489                 if (IS_DQUOTE(conf,*p))
 490                         {
 491                         p=scan_dquote(conf, p);
 492                         continue;
 493                         }
 494                 if (IS_QUOTE(conf,*p))
 495                         {
 496                         p=scan_quote(conf, p);
 497                         continue;
 498                         }
 499                 if (IS_ESC(conf,*p))
 500                         {
 501                         p=scan_esc(conf,p);
 502                         continue;
 503                         }
 504                 if (IS_EOF(conf,*p))
 505                         return;
 506                 else
 507                         p++;
 508                 }
 509         }
 510
 511 static int str_copy(CONF *conf, char *section, char **pto, char *from)
 512         {
 513         int q,r,rr=0,to=0,len=0;
 514         char *s,*e,*rp,*p,*rrp,*np,*cp,v;
 515         BUF_MEM *buf;
 516
 517         if ((buf=BUF_MEM_new()) == NULL) return(0);
 518
 519         len=strlen(from)+1;
 520         if (!BUF_MEM_grow(buf,len)) goto err;
 521
 522         for (;;)
 523                 {
 524                 if (IS_QUOTE(conf,*from))
 525                         {
 526                         q= *from;
 527                         from++;
 528                         while (!IS_EOF(conf,*from) && (*from != q))
 529                                 {
 530                                 if (IS_ESC(conf,*from))
 531                                         {
 532                                         from++;
 533                                         if (IS_EOF(conf,*from)) break;
 534                                         }
 535                                 buf->data[to++]= *(from++);
 536                                 }
 537                         if (*from == q) from++;
 538                         }
 539                 else if (IS_DQUOTE(conf,*from))
 540                         {
 541                         q= *from;
 542                         from++;
 543                         while (!IS_EOF(conf,*from))
 544                                 {
 545                                 if (*from == q)
 546                                         {
 547                                         if (*(from+1) == q)
 548                                                 {
 549                                                 from++;
 550                                                 }
 551                                         else
 552                                                 {
 553                                                 break;
 554                                                 }
 555                                         }
 556                                 buf->data[to++]= *(from++);
 557                                 }
 558                         if (*from == q) from++;
 559                         }
 560                 else if (IS_ESC(conf,*from))
 561                         {
 562                         from++;
 563                         v= *(from++);
 564                         if (IS_EOF(conf,v)) break;
 565                         else if (v == 'r') v='\r';
 566                         else if (v == 'n') v='\n';
 567                         else if (v == 'b') v='\b';
 568                         else if (v == 't') v='\t';
 569                         buf->data[to++]= v;
 570                         }
 571                 else if (IS_EOF(conf,*from))
 572                         break;
 573                 else if (*from == '$')
 574                         {
 575                         /* try to expand it */
 576                         rrp=NULL;
 577                         s= &(from[1]);
 578                         if (*s == '{')
 579                                 q='}';
 580                         else if (*s == '(')
 581                                 q=')';
 582                         else q=0;
 583
 584                         if (q) s++;
 585                         cp=section;
 586                         e=np=s;
 587                         while (IS_ALPHA_NUMERIC(conf,*e))
 588                                 e++;
 589                         if ((e[0] == ':') && (e[1] == ':'))
 590                                 {
 591                                 cp=np;
 592                                 rrp=e;
 593                                 rr= *e;
 594                                 *rrp='\0';
 595                                 e+=2;
 596                                 np=e;
 597                                 while (IS_ALPHA_NUMERIC(conf,*e))
 598                                         e++;
 599                                 }
 600                         r= *e;
 601                         *e='\0';
 602                         rp=e;
 603                         if (q)
 604                                 {
 605                                 if (r != q)
 606                                         {
 607                                         CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE);
 608                                         goto err;
 609                                         }
 610                                 e++;
 611                                 }
 612                         /* So at this point we have
 613                          * np which is the start of the name string which is
 614                          *   '\0' terminated.
 615                          * cp which is the start of the section string which is
 616                          *   '\0' terminated.
 617                          * e is the 'next point after'.
 618                          * r and rr are the chars replaced by the '\0'
 619                          * rp and rrp is where 'r' and 'rr' came from.
 620                          */
 621                         p=_CONF_get_string(conf,cp,np);
 622                         if (rrp != NULL) *rrp=rr;
 623                         *rp=r;
 624                         if (p == NULL)
 625                                 {
 626                                 CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE);
 627                                 goto err;
 628                                 }
 629                         BUF_MEM_grow_clean(buf,(strlen(p)+buf->length-(e-from)));
 630                         while (*p)
 631                                 buf->data[to++]= *(p++);
 632
 633                         /* Since we change the pointer 'from', we also have
 634                            to change the perceived length of the string it
 635                            points at.  /RL */
 636                         len -= e-from;
 637                         from=e;
 638
 639                         /* In case there were no braces or parenthesis around
 640                            the variable reference, we have to put back the
 641                            character that was replaced with a '\0'.  /RL */
 642                         *rp = r;
 643                         }
 644                 else
 645                         buf->data[to++]= *(from++);
 646                 }
 647         buf->data[to]='\0';
 648         if (*pto != NULL) OPENSSL_free(*pto);
 649         *pto=buf->data;
 650         OPENSSL_free(buf);
 651         return(1);
 652 err:
 653         if (buf != NULL) BUF_MEM_free(buf);
 654         return(0);
 655         }
 656
 657 static char *eat_ws(CONF *conf, char *p)
 658         {
 659         while (IS_WS(conf,*p) && (!IS_EOF(conf,*p)))
 660                 p++;
 661         return(p);
 662         }
 663
 664 static char *eat_alpha_numeric(CONF *conf, char *p)
 665         {
 666         for (;;)
 667                 {
 668                 if (IS_ESC(conf,*p))
 669                         {
 670                         p=scan_esc(conf,p);
 671                         continue;
 672                         }
 673                 if (!IS_ALPHA_NUMERIC_PUNCT(conf,*p))
 674                         return(p);
 675                 p++;
 676                 }
 677         }
 678
 679 static char *scan_quote(CONF *conf, char *p)
 680         {
 681         int q= *p;
 682
 683         p++;
 684         while (!(IS_EOF(conf,*p)) && (*p != q))
 685                 {
 686                 if (IS_ESC(conf,*p))
 687                         {
 688                         p++;
 689                         if (IS_EOF(conf,*p)) return(p);
 690                         }
 691                 p++;
 692                 }
 693         if (*p == q) p++;
 694         return(p);
 695         }
 696
 697
 698 static char *scan_dquote(CONF *conf, char *p)
 699         {
 700         int q= *p;
 701
 702         p++;
 703         while (!(IS_EOF(conf,*p)))
 704                 {
 705                 if (*p == q)
 706                         {
 707                         if (*(p+1) == q)
 708                                 {
 709                                 p++;
 710                                 }
 711                         else
 712                                 {
 713                                 break;
 714                                 }
 715                         }
 716                 p++;
 717                 }
 718         if (*p == q) p++;
 719         return(p);
 720         }
 721
 722 static void dump_value(CONF_VALUE *a, BIO *out)
 723         {
 724         if (a->name)
 725                 BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value);
 726         else
 727                 BIO_printf(out, "[[%s]]\n", a->section);
 728         }
 729
 730 static IMPLEMENT_LHASH_DOALL_ARG_FN(dump_value, CONF_VALUE *, BIO *)
 731
 732 static int def_dump(const CONF *conf, BIO *out)
 733         {
 734         lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(dump_value), out);
 735         return 1;
 736         }
 737
 738 static int def_is_number(const CONF *conf, char c)
 739         {
 740         return IS_NUMBER(conf,c);
 741         }
 742
 743 static int def_to_int(const CONF *conf, char c)
 744         {
 745         return c - '0';
 746         }
 747