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-rw-r--r--src/lib/libcrypto/conf/conf_def.c703
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diff --git a/src/lib/libcrypto/conf/conf_def.c b/src/lib/libcrypto/conf/conf_def.c
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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 <openssl/stack.h>
64#include <openssl/lhash.h>
65#include <openssl/conf.h>
66#include <openssl/conf_api.h>
67#include "conf_def.h"
68#include <openssl/buffer.h>
69#include <openssl/err.h>
70
71static char *eat_ws(CONF *conf, char *p);
72static char *eat_alpha_numeric(CONF *conf, char *p);
73static void clear_comments(CONF *conf, char *p);
74static int str_copy(CONF *conf,char *section,char **to, char *from);
75static char *scan_quote(CONF *conf, char *p);
76static char *scan_dquote(CONF *conf, char *p);
77#define scan_esc(conf,p) (((IS_EOF((conf),(p)[1]))?((p)+1):((p)+2)))
78
79static CONF *def_create(CONF_METHOD *meth);
80static int def_init_default(CONF *conf);
81static int def_init_WIN32(CONF *conf);
82static int def_destroy(CONF *conf);
83static int def_destroy_data(CONF *conf);
84static int def_load(CONF *conf, BIO *bp, long *eline);
85static int def_dump(CONF *conf, BIO *bp);
86static int def_is_number(CONF *conf, char c);
87static int def_to_int(CONF *conf, char c);
88
89const char *CONF_def_version="CONF_def" OPENSSL_VERSION_PTEXT;
90
91static CONF_METHOD default_method = {
92 "OpenSSL default",
93 def_create,
94 def_init_default,
95 def_destroy,
96 def_destroy_data,
97 def_load,
98 def_dump,
99 def_is_number,
100 def_to_int
101 };
102
103static CONF_METHOD WIN32_method = {
104 "WIN32",
105 def_create,
106 def_init_WIN32,
107 def_destroy,
108 def_destroy_data,
109 def_load,
110 def_dump,
111 def_is_number,
112 def_to_int
113 };
114
115CONF_METHOD *NCONF_default()
116 {
117 return &default_method;
118 }
119CONF_METHOD *NCONF_WIN32()
120 {
121 return &WIN32_method;
122 }
123
124static CONF *def_create(CONF_METHOD *meth)
125 {
126 CONF *ret;
127
128 ret = (CONF *)OPENSSL_malloc(sizeof(CONF) + sizeof(unsigned short *));
129 if (ret)
130 if (meth->init(ret) == 0)
131 {
132 OPENSSL_free(ret);
133 ret = NULL;
134 }
135 return ret;
136 }
137
138static int def_init_default(CONF *conf)
139 {
140 if (conf == NULL)
141 return 0;
142
143 conf->meth = &default_method;
144 conf->meth_data = (void *)CONF_type_default;
145 conf->data = NULL;
146
147 return 1;
148 }
149
150static int def_init_WIN32(CONF *conf)
151 {
152 if (conf == NULL)
153 return 0;
154
155 conf->meth = &WIN32_method;
156 conf->meth_data = (void *)CONF_type_win32;
157 conf->data = NULL;
158
159 return 1;
160 }
161
162static int def_destroy(CONF *conf)
163 {
164 if (def_destroy_data(conf))
165 {
166 OPENSSL_free(conf);
167 return 1;
168 }
169 return 0;
170 }
171
172static int def_destroy_data(CONF *conf)
173 {
174 if (conf == NULL)
175 return 0;
176 _CONF_free_data(conf);
177 return 1;
178 }
179
180static int def_load(CONF *conf, BIO *in, long *line)
181 {
182#define BUFSIZE 512
183 char btmp[16];
184 int bufnum=0,i,ii;
185 BUF_MEM *buff=NULL;
186 char *s,*p,*end;
187 int again,n;
188 long eline=0;
189 CONF_VALUE *v=NULL,*tv;
190 CONF_VALUE *sv=NULL;
191 char *section=NULL,*buf;
192 STACK_OF(CONF_VALUE) *section_sk=NULL,*ts;
193 char *start,*psection,*pname;
194 void *h = (void *)(conf->data);
195
196 if ((buff=BUF_MEM_new()) == NULL)
197 {
198 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
199 goto err;
200 }
201
202 section=(char *)OPENSSL_malloc(10);
203 if (section == NULL)
204 {
205 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
206 goto err;
207 }
208 strcpy(section,"default");
209
210 if (_CONF_new_data(conf) == 0)
211 {
212 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
213 goto err;
214 }
215
216 sv=_CONF_new_section(conf,section);
217 if (sv == NULL)
218 {
219 CONFerr(CONF_F_CONF_LOAD_BIO,
220 CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
221 goto err;
222 }
223 section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
224
225 bufnum=0;
226 for (;;)
227 {
228 again=0;
229 if (!BUF_MEM_grow(buff,bufnum+BUFSIZE))
230 {
231 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
232 goto err;
233 }
234 p= &(buff->data[bufnum]);
235 *p='\0';
236 BIO_gets(in, p, BUFSIZE-1);
237 p[BUFSIZE-1]='\0';
238 ii=i=strlen(p);
239 if (i == 0) break;
240 while (i > 0)
241 {
242 if ((p[i-1] != '\r') && (p[i-1] != '\n'))
243 break;
244 else
245 i--;
246 }
247 /* we removed some trailing stuff so there is a new
248 * line on the end. */
249 if (i == ii)
250 again=1; /* long line */
251 else
252 {
253 p[i]='\0';
254 eline++; /* another input line */
255 }
256
257 /* we now have a line with trailing \r\n removed */
258
259 /* i is the number of bytes */
260 bufnum+=i;
261
262 v=NULL;
263 /* check for line continuation */
264 if (bufnum >= 1)
265 {
266 /* If we have bytes and the last char '\\' and
267 * second last char is not '\\' */
268 p= &(buff->data[bufnum-1]);
269 if (IS_ESC(conf,p[0]) &&
270 ((bufnum <= 1) || !IS_ESC(conf,p[-1])))
271 {
272 bufnum--;
273 again=1;
274 }
275 }
276 if (again) continue;
277 bufnum=0;
278 buf=buff->data;
279
280 clear_comments(conf, buf);
281 n=strlen(buf);
282 s=eat_ws(conf, buf);
283 if (IS_EOF(conf,*s)) continue; /* blank line */
284 if (*s == '[')
285 {
286 char *ss;
287
288 s++;
289 start=eat_ws(conf, s);
290 ss=start;
291again:
292 end=eat_alpha_numeric(conf, ss);
293 p=eat_ws(conf, end);
294 if (*p != ']')
295 {
296 if (*p != '\0')
297 {
298 ss=p;
299 goto again;
300 }
301 CONFerr(CONF_F_CONF_LOAD_BIO,
302 CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
303 goto err;
304 }
305 *end='\0';
306 if (!str_copy(conf,NULL,&section,start)) goto err;
307 if ((sv=_CONF_get_section(conf,section)) == NULL)
308 sv=_CONF_new_section(conf,section);
309 if (sv == NULL)
310 {
311 CONFerr(CONF_F_CONF_LOAD_BIO,
312 CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
313 goto err;
314 }
315 section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
316 continue;
317 }
318 else
319 {
320 pname=s;
321 psection=NULL;
322 end=eat_alpha_numeric(conf, s);
323 if ((end[0] == ':') && (end[1] == ':'))
324 {
325 *end='\0';
326 end+=2;
327 psection=pname;
328 pname=end;
329 end=eat_alpha_numeric(conf, end);
330 }
331 p=eat_ws(conf, end);
332 if (*p != '=')
333 {
334 CONFerr(CONF_F_CONF_LOAD_BIO,
335 CONF_R_MISSING_EQUAL_SIGN);
336 goto err;
337 }
338 *end='\0';
339 p++;
340 start=eat_ws(conf, p);
341 while (!IS_EOF(conf,*p))
342 p++;
343 p--;
344 while ((p != start) && (IS_WS(conf,*p)))
345 p--;
346 p++;
347 *p='\0';
348
349 if (!(v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))))
350 {
351 CONFerr(CONF_F_CONF_LOAD_BIO,
352 ERR_R_MALLOC_FAILURE);
353 goto err;
354 }
355 if (psection == NULL) psection=section;
356 v->name=(char *)OPENSSL_malloc(strlen(pname)+1);
357 v->value=NULL;
358 if (v->name == NULL)
359 {
360 CONFerr(CONF_F_CONF_LOAD_BIO,
361 ERR_R_MALLOC_FAILURE);
362 goto err;
363 }
364 strcpy(v->name,pname);
365 if (!str_copy(conf,psection,&(v->value),start)) goto err;
366
367 if (strcmp(psection,section) != 0)
368 {
369 if ((tv=_CONF_get_section(conf,psection))
370 == NULL)
371 tv=_CONF_new_section(conf,psection);
372 if (tv == NULL)
373 {
374 CONFerr(CONF_F_CONF_LOAD_BIO,
375 CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
376 goto err;
377 }
378 ts=(STACK_OF(CONF_VALUE) *)tv->value;
379 }
380 else
381 {
382 tv=sv;
383 ts=section_sk;
384 }
385#if 1
386 if (_CONF_add_string(conf, tv, v) == 0)
387 {
388 CONFerr(CONF_F_CONF_LOAD_BIO,
389 ERR_R_MALLOC_FAILURE);
390 goto err;
391 }
392#else
393 v->section=tv->section;
394 if (!sk_CONF_VALUE_push(ts,v))
395 {
396 CONFerr(CONF_F_CONF_LOAD_BIO,
397 ERR_R_MALLOC_FAILURE);
398 goto err;
399 }
400 vv=(CONF_VALUE *)lh_insert(conf->data,v);
401 if (vv != NULL)
402 {
403 sk_CONF_VALUE_delete_ptr(ts,vv);
404 OPENSSL_free(vv->name);
405 OPENSSL_free(vv->value);
406 OPENSSL_free(vv);
407 }
408#endif
409 v=NULL;
410 }
411 }
412 if (buff != NULL) BUF_MEM_free(buff);
413 if (section != NULL) OPENSSL_free(section);
414 return(1);
415err:
416 if (buff != NULL) BUF_MEM_free(buff);
417 if (section != NULL) OPENSSL_free(section);
418 if (line != NULL) *line=eline;
419 sprintf(btmp,"%ld",eline);
420 ERR_add_error_data(2,"line ",btmp);
421 if ((h != conf->data) && (conf->data != NULL)) CONF_free(conf->data);
422 if (v != NULL)
423 {
424 if (v->name != NULL) OPENSSL_free(v->name);
425 if (v->value != NULL) OPENSSL_free(v->value);
426 if (v != NULL) OPENSSL_free(v);
427 }
428 return(0);
429 }
430
431static void clear_comments(CONF *conf, char *p)
432 {
433 char *to;
434
435 to=p;
436 for (;;)
437 {
438 if (IS_FCOMMENT(conf,*p))
439 {
440 *p='\0';
441 return;
442 }
443 if (!IS_WS(conf,*p))
444 {
445 break;
446 }
447 p++;
448 }
449
450 for (;;)
451 {
452 if (IS_COMMENT(conf,*p))
453 {
454 *p='\0';
455 return;
456 }
457 if (IS_DQUOTE(conf,*p))
458 {
459 p=scan_dquote(conf, p);
460 continue;
461 }
462 if (IS_QUOTE(conf,*p))
463 {
464 p=scan_quote(conf, p);
465 continue;
466 }
467 if (IS_ESC(conf,*p))
468 {
469 p=scan_esc(conf,p);
470 continue;
471 }
472 if (IS_EOF(conf,*p))
473 return;
474 else
475 p++;
476 }
477 }
478
479static int str_copy(CONF *conf, char *section, char **pto, char *from)
480 {
481 int q,r,rr=0,to=0,len=0;
482 char *s,*e,*rp,*p,*rrp,*np,*cp,v;
483 BUF_MEM *buf;
484
485 if ((buf=BUF_MEM_new()) == NULL) return(0);
486
487 len=strlen(from)+1;
488 if (!BUF_MEM_grow(buf,len)) goto err;
489
490 for (;;)
491 {
492 if (IS_QUOTE(conf,*from))
493 {
494 q= *from;
495 from++;
496 while (!IS_EOF(conf,*from) && (*from != q))
497 {
498 if (IS_ESC(conf,*from))
499 {
500 from++;
501 if (IS_EOF(conf,*from)) break;
502 }
503 buf->data[to++]= *(from++);
504 }
505 if (*from == q) from++;
506 }
507 else if (IS_DQUOTE(conf,*from))
508 {
509 q= *from;
510 from++;
511 while (!IS_EOF(conf,*from))
512 {
513 if (*from == q)
514 {
515 if (*(from+1) == q)
516 {
517 from++;
518 }
519 else
520 {
521 break;
522 }
523 }
524 buf->data[to++]= *(from++);
525 }
526 if (*from == q) from++;
527 }
528 else if (IS_ESC(conf,*from))
529 {
530 from++;
531 v= *(from++);
532 if (IS_EOF(conf,v)) break;
533 else if (v == 'r') v='\r';
534 else if (v == 'n') v='\n';
535 else if (v == 'b') v='\b';
536 else if (v == 't') v='\t';
537 buf->data[to++]= v;
538 }
539 else if (IS_EOF(conf,*from))
540 break;
541 else if (*from == '$')
542 {
543 /* try to expand it */
544 rrp=NULL;
545 s= &(from[1]);
546 if (*s == '{')
547 q='}';
548 else if (*s == '(')
549 q=')';
550 else q=0;
551
552 if (q) s++;
553 cp=section;
554 e=np=s;
555 while (IS_ALPHA_NUMERIC(conf,*e))
556 e++;
557 if ((e[0] == ':') && (e[1] == ':'))
558 {
559 cp=np;
560 rrp=e;
561 rr= *e;
562 *rrp='\0';
563 e+=2;
564 np=e;
565 while (IS_ALPHA_NUMERIC(conf,*e))
566 e++;
567 }
568 r= *e;
569 *e='\0';
570 rp=e;
571 if (q)
572 {
573 if (r != q)
574 {
575 CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE);
576 goto err;
577 }
578 e++;
579 }
580 /* So at this point we have
581 * ns which is the start of the name string which is
582 * '\0' terminated.
583 * cs which is the start of the section string which is
584 * '\0' terminated.
585 * e is the 'next point after'.
586 * r and s are the chars replaced by the '\0'
587 * rp and sp is where 'r' and 's' came from.
588 */
589 p=_CONF_get_string(conf,cp,np);
590 if (rrp != NULL) *rrp=rr;
591 *rp=r;
592 if (p == NULL)
593 {
594 CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE);
595 goto err;
596 }
597 BUF_MEM_grow(buf,(strlen(p)+len-(e-from)));
598 while (*p)
599 buf->data[to++]= *(p++);
600 from=e;
601 }
602 else
603 buf->data[to++]= *(from++);
604 }
605 buf->data[to]='\0';
606 if (*pto != NULL) OPENSSL_free(*pto);
607 *pto=buf->data;
608 OPENSSL_free(buf);
609 return(1);
610err:
611 if (buf != NULL) BUF_MEM_free(buf);
612 return(0);
613 }
614
615static char *eat_ws(CONF *conf, char *p)
616 {
617 while (IS_WS(conf,*p) && (!IS_EOF(conf,*p)))
618 p++;
619 return(p);
620 }
621
622static char *eat_alpha_numeric(CONF *conf, char *p)
623 {
624 for (;;)
625 {
626 if (IS_ESC(conf,*p))
627 {
628 p=scan_esc(conf,p);
629 continue;
630 }
631 if (!IS_ALPHA_NUMERIC_PUNCT(conf,*p))
632 return(p);
633 p++;
634 }
635 }
636
637static char *scan_quote(CONF *conf, char *p)
638 {
639 int q= *p;
640
641 p++;
642 while (!(IS_EOF(conf,*p)) && (*p != q))
643 {
644 if (IS_ESC(conf,*p))
645 {
646 p++;
647 if (IS_EOF(conf,*p)) return(p);
648 }
649 p++;
650 }
651 if (*p == q) p++;
652 return(p);
653 }
654
655
656static char *scan_dquote(CONF *conf, char *p)
657 {
658 int q= *p;
659
660 p++;
661 while (!(IS_EOF(conf,*p)))
662 {
663 if (*p == q)
664 {
665 if (*(p+1) == q)
666 {
667 p++;
668 }
669 else
670 {
671 break;
672 }
673 }
674 p++;
675 }
676 if (*p == q) p++;
677 return(p);
678 }
679
680static void dump_value(CONF_VALUE *a, BIO *out)
681 {
682 if (a->name)
683 BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value);
684 else
685 BIO_printf(out, "[[%s]]\n", a->section);
686 }
687
688static int def_dump(CONF *conf, BIO *out)
689 {
690 lh_doall_arg(conf->data, (void (*)())dump_value, out);
691 return 1;
692 }
693
694static int def_is_number(CONF *conf, char c)
695 {
696 return IS_NUMBER(conf,c);
697 }
698
699static int def_to_int(CONF *conf, char c)
700 {
701 return c - '0';
702 }
703
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-11-23 19:12:57 +0000