1 /* crypto/conf/conf.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 /* Part of the code in here was originally in conf.c, which is now removed */
62 #include <openssl/stack.h>
63 #include <openssl/lhash.h>
64 #include <openssl/conf.h>
65 #include <openssl/conf_api.h>
67 #include <openssl/buffer.h>
68 #include <openssl/err.h>
70 static char *eat_ws(CONF *conf, char *p);
71 static char *eat_alpha_numeric(CONF *conf, char *p);
72 static void clear_comments(CONF *conf, char *p);
73 static int str_copy(CONF *conf,char *section,char **to, char *from);
74 static char *scan_quote(CONF *conf, char *p);
75 static char *scan_dquote(CONF *conf, char *p);
76 #define scan_esc(p) (((IS_EOF((conf),(p)[1]))?(p+=1):(p+=2)))
78 static CONF *def_create(CONF_METHOD *meth);
79 static int def_init_default(CONF *conf);
80 static int def_init_WIN32(CONF *conf);
81 static int def_destroy(CONF *conf);
82 static int def_destroy_data(CONF *conf);
83 static int def_load(CONF *conf, BIO *bp, long *eline);
84 static int def_dump(CONF *conf, BIO *bp);
85 static int def_is_number(CONF *conf, char c);
86 static int def_to_int(CONF *conf, char c);
88 const char *CONF_def_version="CONF_def" OPENSSL_VERSION_PTEXT;
90 static CONF_METHOD default_method = {
102 static CONF_METHOD WIN32_method = {
114 CONF_METHOD *NCONF_default()
116 return &default_method;
118 CONF_METHOD *NCONF_WIN32()
120 return &WIN32_method;
123 static CONF *def_create(CONF_METHOD *meth)
127 ret = (CONF *)Malloc(sizeof(CONF) + sizeof(unsigned short *));
129 if (meth->init(ret) == 0)
137 static int def_init_default(CONF *conf)
142 conf->meth = &default_method;
143 conf->meth_data = (void *)CONF_type_default;
149 static int def_init_WIN32(CONF *conf)
154 conf->meth = &WIN32_method;
155 conf->meth_data = (void *)CONF_type_win32;
161 static int def_destroy(CONF *conf)
163 if (def_destroy_data(conf))
171 static int def_destroy_data(CONF *conf)
175 _CONF_free_data(conf);
179 static int def_load(CONF *conf, BIO *in, long *line)
188 CONF_VALUE *v=NULL,*tv;
190 char *section=NULL,*buf;
191 STACK_OF(CONF_VALUE) *section_sk=NULL,*ts;
192 char *start,*psection,*pname;
193 void *h = (void *)(conf->data);
195 if ((buff=BUF_MEM_new()) == NULL)
197 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
201 section=(char *)Malloc(10);
204 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
207 strcpy(section,"default");
209 if (_CONF_new_data(conf) == 0)
211 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
215 sv=_CONF_new_section(conf,section);
218 CONFerr(CONF_F_CONF_LOAD_BIO,
219 CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
222 section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
228 if (!BUF_MEM_grow(buff,bufnum+BUFSIZE))
230 CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
233 p= &(buff->data[bufnum]);
235 BIO_gets(in, p, BUFSIZE-1);
241 if ((p[i-1] != '\r') && (p[i-1] != '\n'))
246 /* we removed some trailing stuff so there is a new
247 * line on the end. */
249 again=1; /* long line */
253 eline++; /* another input line */
256 /* we now have a line with trailing \r\n removed */
258 /* i is the number of bytes */
262 /* check for line continuation */
265 /* If we have bytes and the last char '\\' and
266 * second last char is not '\\' */
267 p= &(buff->data[bufnum-1]);
268 if (IS_ESC(conf,p[0]) &&
269 ((bufnum <= 1) || !IS_ESC(conf,p[-1])))
279 clear_comments(conf, buf);
282 if (IS_EOF(conf,*s)) continue; /* blank line */
288 start=eat_ws(conf, s);
291 end=eat_alpha_numeric(conf, ss);
300 CONFerr(CONF_F_CONF_LOAD_BIO,
301 CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
305 if (!str_copy(conf,NULL,§ion,start)) goto err;
306 if ((sv=_CONF_get_section(conf,section)) == NULL)
307 sv=_CONF_new_section(conf,section);
310 CONFerr(CONF_F_CONF_LOAD_BIO,
311 CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
314 section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
321 end=eat_alpha_numeric(conf, s);
322 if ((end[0] == ':') && (end[1] == ':'))
328 end=eat_alpha_numeric(conf, end);
333 CONFerr(CONF_F_CONF_LOAD_BIO,
334 CONF_R_MISSING_EQUAL_SIGN);
339 start=eat_ws(conf, p);
340 while (!IS_EOF(conf,*p))
343 while ((p != start) && (IS_WS(conf,*p)))
348 if (!(v=(CONF_VALUE *)Malloc(sizeof(CONF_VALUE))))
350 CONFerr(CONF_F_CONF_LOAD_BIO,
351 ERR_R_MALLOC_FAILURE);
354 if (psection == NULL) psection=section;
355 v->name=(char *)Malloc(strlen(pname)+1);
359 CONFerr(CONF_F_CONF_LOAD_BIO,
360 ERR_R_MALLOC_FAILURE);
363 strcpy(v->name,pname);
364 if (!str_copy(conf,psection,&(v->value),start)) goto err;
366 if (strcmp(psection,section) != 0)
368 if ((tv=_CONF_get_section(conf,psection))
370 tv=_CONF_new_section(conf,psection);
373 CONFerr(CONF_F_CONF_LOAD_BIO,
374 CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
377 ts=(STACK_OF(CONF_VALUE) *)tv->value;
385 if (_CONF_add_string(conf, tv, v) == 0)
387 CONFerr(CONF_F_CONF_LOAD_BIO,
388 ERR_R_MALLOC_FAILURE);
392 v->section=tv->section;
393 if (!sk_CONF_VALUE_push(ts,v))
395 CONFerr(CONF_F_CONF_LOAD_BIO,
396 ERR_R_MALLOC_FAILURE);
399 vv=(CONF_VALUE *)lh_insert(conf->data,v);
402 sk_CONF_VALUE_delete_ptr(ts,vv);
411 if (buff != NULL) BUF_MEM_free(buff);
412 if (section != NULL) Free(section);
415 if (buff != NULL) BUF_MEM_free(buff);
416 if (section != NULL) Free(section);
417 if (line != NULL) *line=eline;
418 sprintf(btmp,"%ld",eline);
419 ERR_add_error_data(2,"line ",btmp);
420 if ((h != conf->data) && (conf->data != NULL)) CONF_free(conf->data);
423 if (v->name != NULL) Free(v->name);
424 if (v->value != NULL) Free(v->value);
425 if (v != NULL) Free(v);
430 static void clear_comments(CONF *conf, char *p)
437 if (IS_FCOMMENT(conf,*p))
451 if (IS_COMMENT(conf,*p))
456 if (IS_DQUOTE(conf,*p))
458 p=scan_dquote(conf, p);
461 if (IS_QUOTE(conf,*p))
463 p=scan_quote(conf, p);
478 static int str_copy(CONF *conf, char *section, char **pto, char *from)
480 int q,r,rr=0,to=0,len=0;
481 char *s,*e,*rp,*p,*rrp,*np,*cp,v;
484 if ((buf=BUF_MEM_new()) == NULL) return(0);
487 if (!BUF_MEM_grow(buf,len)) goto err;
491 if (IS_QUOTE(conf,*from))
495 while (!IS_EOF(conf,*from) && (*from != q))
497 if (IS_ESC(conf,*from))
500 if (IS_EOF(conf,*from)) break;
502 buf->data[to++]= *(from++);
504 if (*from == q) from++;
506 else if (IS_DQUOTE(conf,*from))
510 while (!IS_EOF(conf,*from))
523 buf->data[to++]= *(from++);
525 if (*from == q) from++;
527 else if (IS_ESC(conf,*from))
531 if (IS_EOF(conf,v)) break;
532 else if (v == 'r') v='\r';
533 else if (v == 'n') v='\n';
534 else if (v == 'b') v='\b';
535 else if (v == 't') v='\t';
538 else if (IS_EOF(conf,*from))
540 else if (*from == '$')
542 /* try to expand it */
554 while (IS_ALPHA_NUMERIC(conf,*e))
556 if ((e[0] == ':') && (e[1] == ':'))
564 while (IS_ALPHA_NUMERIC(conf,*e))
574 CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE);
579 /* So at this point we have
580 * ns which is the start of the name string which is
582 * cs which is the start of the section string which is
584 * e is the 'next point after'.
585 * r and s are the chars replaced by the '\0'
586 * rp and sp is where 'r' and 's' came from.
588 p=_CONF_get_string(conf,cp,np);
589 if (rrp != NULL) *rrp=rr;
593 CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE);
596 BUF_MEM_grow(buf,(strlen(p)+len-(e-from)));
598 buf->data[to++]= *(p++);
602 buf->data[to++]= *(from++);
605 if (*pto != NULL) Free(*pto);
610 if (buf != NULL) BUF_MEM_free(buf);
614 static char *eat_ws(CONF *conf, char *p)
616 while (IS_WS(conf,*p) && (!IS_EOF(conf,*p)))
621 static char *eat_alpha_numeric(CONF *conf, char *p)
630 if (!IS_ALPHA_NUMERIC_PUNCT(conf,*p))
636 static char *scan_quote(CONF *conf, char *p)
641 while (!(IS_EOF(conf,*p)) && (*p != q))
646 if (IS_EOF(conf,*p)) return(p);
655 static char *scan_dquote(CONF *conf, char *p)
660 while (!(IS_EOF(conf,*p)))
679 static void dump_value(CONF_VALUE *a, BIO *out)
682 BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value);
684 BIO_printf(out, "[[%s]]\n", a->section);
687 static int def_dump(CONF *conf, BIO *out)
689 lh_doall_arg(conf->data, (void (*)())dump_value, out);
693 static int def_is_number(CONF *conf, char c)
695 return IS_NUMBER(conf,c);
698 static int def_to_int(CONF *conf, char c)