crypto/conf/conf.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 #include <stdio.h>
  60 #include <errno.h>
  61 #include "cryptlib.h"
  62 #include <openssl/stack.h>
  63 #include <openssl/lhash.h>
  64 #include <openssl/conf.h>
  65 #include <openssl/buffer.h>
  66 #include <openssl/err.h>
  67
  68 #include "conf_lcl.h"
  69
  70 static void value_free_hash(CONF_VALUE *a, LHASH *conf);
  71 static void value_free_stack(CONF_VALUE *a,LHASH *conf);
  72 static unsigned long hash(CONF_VALUE *v);
  73 static int cmp(CONF_VALUE *a,CONF_VALUE *b);
  74 static char *eat_ws(char *p);
  75 static char *eat_alpha_numeric(char *p);
  76 static void clear_comments(char *p);
  77 static int str_copy(LHASH *conf,char *section,char **to, char *from);
  78 static char *scan_quote(char *p);
  79 static CONF_VALUE *new_section(LHASH *conf,char *section);
  80 static CONF_VALUE *get_section(LHASH *conf,char *section);
  81 #define scan_esc(p)     ((((p)[1] == '\0')?(p++):(p+=2)),p)
  82
  83 const char *CONF_version="CONF" OPENSSL_VERSION_PTEXT;
  84
  85
  86 LHASH *CONF_load(LHASH *h, const char *file, long *line)
  87         {
  88         LHASH *ltmp;
  89         FILE *in=NULL;
  90
  91 #ifdef VMS
  92         in=fopen(file,"r");
  93 #else
  94         in=fopen(file,"rb");
  95 #endif
  96         if (in == NULL)
  97                 {
  98                 SYSerr(SYS_F_FOPEN,get_last_sys_error());
  99                 ERR_set_error_data(BUF_strdup(file),
 100                         ERR_TXT_MALLOCED|ERR_TXT_STRING);
 101                 CONFerr(CONF_F_CONF_LOAD,ERR_R_SYS_LIB);
 102                 return NULL;
 103                 }
 104
 105         ltmp = CONF_load_fp(h, in, line);
 106         fclose(in);
 107
 108         return ltmp;
 109 }
 110
 111 LHASH *CONF_load_fp(LHASH *h, FILE *in, long *line)
 112 {
 113         BIO *btmp;
 114         LHASH *ltmp;
 115         if(!(btmp = BIO_new_fp(in, BIO_NOCLOSE))) {
 116                 CONFerr(CONF_F_CONF_LOAD_FP,ERR_R_BUF_LIB);
 117                 return NULL;
 118         }
 119         ltmp = CONF_load_bio(h, btmp, line);
 120         BIO_free(btmp);
 121         return ltmp;
 122 }
 123
 124 LHASH *CONF_load_bio(LHASH *h, BIO *in, long *line)
 125         {
 126         LHASH *ret=NULL;
 127 #define BUFSIZE 512
 128         char btmp[16];
 129         int bufnum=0,i,ii;
 130         BUF_MEM *buff=NULL;
 131         char *s,*p,*end;
 132         int again,n;
 133         long eline=0;
 134         CONF_VALUE *v=NULL,*vv,*tv;
 135         CONF_VALUE *sv=NULL;
 136         char *section=NULL,*buf;
 137         STACK_OF(CONF_VALUE) *section_sk=NULL,*ts;
 138         char *start,*psection,*pname;
 139
 140         if ((buff=BUF_MEM_new()) == NULL)
 141                 {
 142                 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
 143                 goto err;
 144                 }
 145
 146         section=(char *)Malloc(10);
 147         if (section == NULL)
 148                 {
 149                 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
 150                 goto err;
 151                 }
 152         strcpy(section,"default");
 153
 154         if (h == NULL)
 155                 {
 156                 if ((ret=lh_new(hash,cmp)) == NULL)
 157                         {
 158                         CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
 159                         goto err;
 160                         }
 161                 }
 162         else
 163                 ret=h;
 164
 165         sv=new_section(ret,section);
 166         if (sv == NULL)
 167                 {
 168                 CONFerr(CONF_F_CONF_LOAD_BIO,
 169                                         CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 170                 goto err;
 171                 }
 172         section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
 173
 174         bufnum=0;
 175         for (;;)
 176                 {
 177                 again=0;
 178                 if (!BUF_MEM_grow(buff,bufnum+BUFSIZE))
 179                         {
 180                         CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
 181                         goto err;
 182                         }
 183                 p= &(buff->data[bufnum]);
 184                 *p='\0';
 185                 BIO_gets(in, p, BUFSIZE-1);
 186                 p[BUFSIZE-1]='\0';
 187                 ii=i=strlen(p);
 188                 if (i == 0) break;
 189                 while (i > 0)
 190                         {
 191                         if ((p[i-1] != '\r') && (p[i-1] != '\n'))
 192                                 break;
 193                         else
 194                                 i--;
 195                         }
 196                 /* we removed some trailing stuff so there is a new
 197                  * line on the end. */
 198                 if (i == ii)
 199                         again=1; /* long line */
 200                 else
 201                         {
 202                         p[i]='\0';
 203                         eline++; /* another input line */
 204                         }
 205
 206                 /* we now have a line with trailing \r\n removed */
 207
 208                 /* i is the number of bytes */
 209                 bufnum+=i;
 210
 211                 v=NULL;
 212                 /* check for line continuation */
 213                 if (bufnum >= 1)
 214                         {
 215                         /* If we have bytes and the last char '\\' and
 216                          * second last char is not '\\' */
 217                         p= &(buff->data[bufnum-1]);
 218                         if (    IS_ESC(p[0]) &&
 219                                 ((bufnum <= 1) || !IS_ESC(p[-1])))
 220                                 {
 221                                 bufnum--;
 222                                 again=1;
 223                                 }
 224                         }
 225                 if (again) continue;
 226                 bufnum=0;
 227                 buf=buff->data;
 228
 229                 clear_comments(buf);
 230                 n=strlen(buf);
 231                 s=eat_ws(buf);
 232                 if (IS_EOF(*s)) continue; /* blank line */
 233                 if (*s == '[')
 234                         {
 235                         char *ss;
 236
 237                         s++;
 238                         start=eat_ws(s);
 239                         ss=start;
 240 again:
 241                         end=eat_alpha_numeric(ss);
 242                         p=eat_ws(end);
 243                         if (*p != ']')
 244                                 {
 245                                 if (*p != '\0')
 246                                         {
 247                                         ss=p;
 248                                         goto again;
 249                                         }
 250                                 CONFerr(CONF_F_CONF_LOAD_BIO,
 251                                         CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
 252                                 goto err;
 253                                 }
 254                         *end='\0';
 255                         if (!str_copy(ret,NULL,&section,start)) goto err;
 256                         if ((sv=get_section(ret,section)) == NULL)
 257                                 sv=new_section(ret,section);
 258                         if (sv == NULL)
 259                                 {
 260                                 CONFerr(CONF_F_CONF_LOAD_BIO,
 261                                         CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 262                                 goto err;
 263                                 }
 264                         section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
 265                         continue;
 266                         }
 267                 else
 268                         {
 269                         pname=s;
 270                         psection=NULL;
 271                         end=eat_alpha_numeric(s);
 272                         if ((end[0] == ':') && (end[1] == ':'))
 273                                 {
 274                                 *end='\0';
 275                                 end+=2;
 276                                 psection=pname;
 277                                 pname=end;
 278                                 end=eat_alpha_numeric(end);
 279                                 }
 280                         p=eat_ws(end);
 281                         if (*p != '=')
 282                                 {
 283                                 CONFerr(CONF_F_CONF_LOAD_BIO,
 284                                                 CONF_R_MISSING_EQUAL_SIGN);
 285                                 goto err;
 286                                 }
 287                         *end='\0';
 288                         p++;
 289                         start=eat_ws(p);
 290                         while (!IS_EOF(*p))
 291                                 p++;
 292                         p--;
 293                         while ((p != start) && (IS_WS(*p)))
 294                                 p--;
 295                         p++;
 296                         *p='\0';
 297
 298                         if (!(v=(CONF_VALUE *)Malloc(sizeof(CONF_VALUE))))
 299                                 {
 300                                 CONFerr(CONF_F_CONF_LOAD_BIO,
 301                                                         ERR_R_MALLOC_FAILURE);
 302                                 goto err;
 303                                 }
 304                         if (psection == NULL) psection=section;
 305                         v->name=(char *)Malloc(strlen(pname)+1);
 306                         v->value=NULL;
 307                         if (v->name == NULL)
 308                                 {
 309                                 CONFerr(CONF_F_CONF_LOAD_BIO,
 310                                                         ERR_R_MALLOC_FAILURE);
 311                                 goto err;
 312                                 }
 313                         strcpy(v->name,pname);
 314                         if (!str_copy(ret,psection,&(v->value),start)) goto err;
 315
 316                         if (strcmp(psection,section) != 0)
 317                                 {
 318                                 if ((tv=get_section(ret,psection))
 319                                         == NULL)
 320                                         tv=new_section(ret,psection);
 321                                 if (tv == NULL)
 322                                         {
 323                                         CONFerr(CONF_F_CONF_LOAD_BIO,
 324                                            CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
 325                                         goto err;
 326                                         }
 327                                 ts=(STACK_OF(CONF_VALUE) *)tv->value;
 328                                 }
 329                         else
 330                                 {
 331                                 tv=sv;
 332                                 ts=section_sk;
 333                                 }
 334                         v->section=tv->section;
 335                         if (!sk_CONF_VALUE_push(ts,v))
 336                                 {
 337                                 CONFerr(CONF_F_CONF_LOAD_BIO,
 338                                                         ERR_R_MALLOC_FAILURE);
 339                                 goto err;
 340                                 }
 341                         vv=(CONF_VALUE *)lh_insert(ret,(char *)v);
 342                         if (vv != NULL)
 343                                 {
 344                                 sk_CONF_VALUE_delete_ptr(ts,vv);
 345                                 Free(vv->name);
 346                                 Free(vv->value);
 347                                 Free(vv);
 348                                 }
 349                         v=NULL;
 350                         }
 351                 }
 352         if (buff != NULL) BUF_MEM_free(buff);
 353         if (section != NULL) Free(section);
 354         return(ret);
 355 err:
 356         if (buff != NULL) BUF_MEM_free(buff);
 357         if (section != NULL) Free(section);
 358         if (line != NULL) *line=eline;
 359         sprintf(btmp,"%ld",eline);
 360         ERR_add_error_data(2,"line ",btmp);
 361         if ((h != ret) && (ret != NULL)) CONF_free(ret);
 362         if (v != NULL)
 363                 {
 364                 if (v->name != NULL) Free(v->name);
 365                 if (v->value != NULL) Free(v->value);
 366                 if (v != NULL) Free(v);
 367                 }
 368         return(NULL);
 369         }
 370
 371 char *CONF_get_string(LHASH *conf, char *section, char *name)
 372         {
 373         CONF_VALUE *v,vv;
 374         char *p;
 375
 376         if (name == NULL) return(NULL);
 377         if (conf != NULL)
 378                 {
 379                 if (section != NULL)
 380                         {
 381                         vv.name=name;
 382                         vv.section=section;
 383                         v=(CONF_VALUE *)lh_retrieve(conf,(char *)&vv);
 384                         if (v != NULL) return(v->value);
 385                         if (strcmp(section,"ENV") == 0)
 386                                 {
 387                                 p=Getenv(name);
 388                                 if (p != NULL) return(p);
 389                                 }
 390                         }
 391                 vv.section="default";
 392                 vv.name=name;
 393                 v=(CONF_VALUE *)lh_retrieve(conf,(char *)&vv);
 394                 if (v != NULL)
 395                         return(v->value);
 396                 else
 397                         return(NULL);
 398                 }
 399         else
 400                 return(Getenv(name));
 401         }
 402
 403 static CONF_VALUE *get_section(LHASH *conf, char *section)
 404         {
 405         CONF_VALUE *v,vv;
 406
 407         if ((conf == NULL) || (section == NULL)) return(NULL);
 408         vv.name=NULL;
 409         vv.section=section;
 410         v=(CONF_VALUE *)lh_retrieve(conf,(char *)&vv);
 411         return(v);
 412         }
 413
 414 STACK_OF(CONF_VALUE) *CONF_get_section(LHASH *conf, char *section)
 415         {
 416         CONF_VALUE *v;
 417
 418         v=get_section(conf,section);
 419         if (v != NULL)
 420                 return((STACK_OF(CONF_VALUE) *)v->value);
 421         else
 422                 return(NULL);
 423         }
 424
 425 long CONF_get_number(LHASH *conf, char *section, char *name)
 426         {
 427         char *str;
 428         long ret=0;
 429
 430         str=CONF_get_string(conf,section,name);
 431         if (str == NULL) return(0);
 432         for (;;)
 433                 {
 434                 if (IS_NUMER(*str))
 435                         ret=ret*10+(*str -'0');
 436                 else
 437                         return(ret);
 438                 str++;
 439                 }
 440         }
 441
 442 void CONF_free(LHASH *conf)
 443         {
 444         if (conf == NULL) return;
 445
 446         conf->down_load=0;      /* evil thing to make sure the 'Free()'
 447                                  * works as expected */
 448         lh_doall_arg(conf,(void (*)())value_free_hash,(char *)conf);
 449
 450         /* We now have only 'section' entries in the hash table.
 451          * Due to problems with */
 452
 453         lh_doall_arg(conf,(void (*)())value_free_stack,(char *)conf);
 454         lh_free(conf);
 455         }
 456
 457 static void value_free_hash(CONF_VALUE *a, LHASH *conf)
 458         {
 459         if (a->name != NULL)
 460                 {
 461                 a=(CONF_VALUE *)lh_delete(conf,(char *)a);
 462                 }
 463         }
 464
 465 static void value_free_stack(CONF_VALUE *a, LHASH *conf)
 466         {
 467         CONF_VALUE *vv;
 468         STACK *sk;
 469         int i;
 470
 471         if (a->name != NULL) return;
 472
 473         sk=(STACK *)a->value;
 474         for (i=sk_num(sk)-1; i>=0; i--)
 475                 {
 476                 vv=(CONF_VALUE *)sk_value(sk,i);
 477                 Free(vv->value);
 478                 Free(vv->name);
 479                 Free(vv);
 480                 }
 481         if (sk != NULL) sk_free(sk);
 482         Free(a->section);
 483         Free(a);
 484         }
 485
 486 static void clear_comments(char *p)
 487         {
 488         char *to;
 489
 490         to=p;
 491         for (;;)
 492                 {
 493                 if (IS_COMMENT(*p))
 494                         {
 495                         *p='\0';
 496                         return;
 497                         }
 498                 if (IS_QUOTE(*p))
 499                         {
 500                         p=scan_quote(p);
 501                         continue;
 502                         }
 503                 if (IS_ESC(*p))
 504                         {
 505                         p=scan_esc(p);
 506                         continue;
 507                         }
 508                 if (IS_EOF(*p))
 509                         return;
 510                 else
 511                         p++;
 512                 }
 513         }
 514
 515 static int str_copy(LHASH *conf, char *section, char **pto, char *from)
 516         {
 517         int q,r,rr=0,to=0,len=0;
 518         char *s,*e,*rp,*p,*rrp,*np,*cp,v;
 519         BUF_MEM *buf;
 520
 521         if ((buf=BUF_MEM_new()) == NULL) return(0);
 522
 523         len=strlen(from)+1;
 524         if (!BUF_MEM_grow(buf,len)) goto err;
 525
 526         for (;;)
 527                 {
 528                 if (IS_QUOTE(*from))
 529                         {
 530                         q= *from;
 531                         from++;
 532                         while ((*from != '\0') && (*from != q))
 533                                 {
 534                                 if (*from == '\\')
 535                                         {
 536                                         from++;
 537                                         if (*from == '\0') break;
 538                                         }
 539                                 buf->data[to++]= *(from++);
 540                                 }
 541                         }
 542                 else if (*from == '\\')
 543                         {
 544                         from++;
 545                         v= *(from++);
 546                         if (v == '\0') break;
 547                         else if (v == 'r') v='\r';
 548                         else if (v == 'n') v='\n';
 549                         else if (v == 'b') v='\b';
 550                         else if (v == 't') v='\t';
 551                         buf->data[to++]= v;
 552                         }
 553                 else if (*from == '\0')
 554                         break;
 555                 else if (*from == '$')
 556                         {
 557                         /* try to expand it */
 558                         rrp=NULL;
 559                         s= &(from[1]);
 560                         if (*s == '{')
 561                                 q='}';
 562                         else if (*s == '(')
 563                                 q=')';
 564                         else q=0;
 565
 566                         if (q) s++;
 567                         cp=section;
 568                         e=np=s;
 569                         while (IS_ALPHA_NUMERIC(*e))
 570                                 e++;
 571                         if ((e[0] == ':') && (e[1] == ':'))
 572                                 {
 573                                 cp=np;
 574                                 rrp=e;
 575                                 rr= *e;
 576                                 *rrp='\0';
 577                                 e+=2;
 578                                 np=e;
 579                                 while (IS_ALPHA_NUMERIC(*e))
 580                                         e++;
 581                                 }
 582                         r= *e;
 583                         *e='\0';
 584                         rp=e;
 585                         if (q)
 586                                 {
 587                                 if (r != q)
 588                                         {
 589                                         CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE);
 590                                         goto err;
 591                                         }
 592                                 e++;
 593                                 }
 594                         /* So at this point we have
 595                          * ns which is the start of the name string which is
 596                          *   '\0' terminated.
 597                          * cs which is the start of the section string which is
 598                          *   '\0' terminated.
 599                          * e is the 'next point after'.
 600                          * r and s are the chars replaced by the '\0'
 601                          * rp and sp is where 'r' and 's' came from.
 602                          */
 603                         p=CONF_get_string(conf,cp,np);
 604                         if (rrp != NULL) *rrp=rr;
 605                         *rp=r;
 606                         if (p == NULL)
 607                                 {
 608                                 CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE);
 609                                 goto err;
 610                                 }
 611                         BUF_MEM_grow(buf,(strlen(p)+len-(e-from)));
 612                         while (*p)
 613                                 buf->data[to++]= *(p++);
 614                         from=e;
 615                         }
 616                 else
 617                         buf->data[to++]= *(from++);
 618                 }
 619         buf->data[to]='\0';
 620         if (*pto != NULL) Free(*pto);
 621         *pto=buf->data;
 622         Free(buf);
 623         return(1);
 624 err:
 625         if (buf != NULL) BUF_MEM_free(buf);
 626         return(0);
 627         }
 628
 629 static char *eat_ws(char *p)
 630         {
 631         while (IS_WS(*p) && (!IS_EOF(*p)))
 632                 p++;
 633         return(p);
 634         }
 635
 636 static char *eat_alpha_numeric(char *p)
 637         {
 638         for (;;)
 639                 {
 640                 if (IS_ESC(*p))
 641                         {
 642                         p=scan_esc(p);
 643                         continue;
 644                         }
 645                 if (!IS_ALPHA_NUMERIC_PUNCT(*p))
 646                         return(p);
 647                 p++;
 648                 }
 649         }
 650
 651 static unsigned long hash(CONF_VALUE *v)
 652         {
 653         return((lh_strhash(v->section)<<2)^lh_strhash(v->name));
 654         }
 655
 656 static int cmp(CONF_VALUE *a, CONF_VALUE *b)
 657         {
 658         int i;
 659
 660         if (a->section != b->section)
 661                 {
 662                 i=strcmp(a->section,b->section);
 663                 if (i) return(i);
 664                 }
 665
 666         if ((a->name != NULL) && (b->name != NULL))
 667                 {
 668                 i=strcmp(a->name,b->name);
 669                 return(i);
 670                 }
 671         else if (a->name == b->name)
 672                 return(0);
 673         else
 674                 return((a->name == NULL)?-1:1);
 675         }
 676
 677 static char *scan_quote(char *p)
 678         {
 679         int q= *p;
 680
 681         p++;
 682         while (!(IS_EOF(*p)) && (*p != q))
 683                 {
 684                 if (IS_ESC(*p))
 685                         {
 686                         p++;
 687                         if (IS_EOF(*p)) return(p);
 688                         }
 689                 p++;
 690                 }
 691         if (*p == q) p++;
 692         return(p);
 693         }
 694
 695 static CONF_VALUE *new_section(LHASH *conf, char *section)
 696         {
 697         STACK *sk=NULL;
 698         int ok=0,i;
 699         CONF_VALUE *v=NULL,*vv;
 700
 701         if ((sk=sk_new_null()) == NULL)
 702                 goto err;
 703         if ((v=(CONF_VALUE *)Malloc(sizeof(CONF_VALUE))) == NULL)
 704                 goto err;
 705         i=strlen(section)+1;
 706         if ((v->section=(char *)Malloc(i)) == NULL)
 707                 goto err;
 708
 709         memcpy(v->section,section,i);
 710         v->name=NULL;
 711         v->value=(char *)sk;
 712
 713         vv=(CONF_VALUE *)lh_insert(conf,(char *)v);
 714         if (vv != NULL)
 715                 {
 716 #if !defined(NO_STDIO) && !defined(WIN16)
 717                 fprintf(stderr,"internal fault\n");
 718 #endif
 719                 abort();
 720                 }
 721         ok=1;
 722 err:
 723         if (!ok)
 724                 {
 725                 if (sk != NULL) sk_free(sk);
 726                 if (v != NULL) Free(v);
 727                 v=NULL;
 728                 }
 729         return(v);
 730         }
 731
 732 IMPLEMENT_STACK_OF(CONF_VALUE)