703 lines
15 KiB
C
703 lines
15 KiB
C
/* crypto/conf/conf.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* Part of the code in here was originally in conf.c, which is now removed */
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#include <stdio.h>
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#include <string.h>
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#include <openssl/stack.h>
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#include <openssl/lhash.h>
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#include <openssl/conf.h>
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#include <openssl/conf_api.h>
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#include "conf_def.h"
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#include <openssl/buffer.h>
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#include <openssl/err.h>
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static char *eat_ws(CONF *conf, char *p);
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static char *eat_alpha_numeric(CONF *conf, char *p);
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static void clear_comments(CONF *conf, char *p);
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static int str_copy(CONF *conf,char *section,char **to, char *from);
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static char *scan_quote(CONF *conf, char *p);
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static char *scan_dquote(CONF *conf, char *p);
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#define scan_esc(conf,p) (((IS_EOF((conf),(p)[1]))?((p)+1):((p)+2)))
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static CONF *def_create(CONF_METHOD *meth);
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static int def_init_default(CONF *conf);
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static int def_init_WIN32(CONF *conf);
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static int def_destroy(CONF *conf);
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static int def_destroy_data(CONF *conf);
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static int def_load(CONF *conf, BIO *bp, long *eline);
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static int def_dump(CONF *conf, BIO *bp);
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static int def_is_number(CONF *conf, char c);
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static int def_to_int(CONF *conf, char c);
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const char *CONF_def_version="CONF_def" OPENSSL_VERSION_PTEXT;
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static CONF_METHOD default_method = {
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"OpenSSL default",
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def_create,
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def_init_default,
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def_destroy,
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def_destroy_data,
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def_load,
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def_dump,
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def_is_number,
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def_to_int
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};
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static CONF_METHOD WIN32_method = {
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"WIN32",
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def_create,
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def_init_WIN32,
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def_destroy,
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def_destroy_data,
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def_load,
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def_dump,
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def_is_number,
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def_to_int
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};
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CONF_METHOD *NCONF_default()
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{
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return &default_method;
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}
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CONF_METHOD *NCONF_WIN32()
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{
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return &WIN32_method;
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}
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static CONF *def_create(CONF_METHOD *meth)
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{
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CONF *ret;
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ret = (CONF *)OPENSSL_malloc(sizeof(CONF) + sizeof(unsigned short *));
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if (ret)
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if (meth->init(ret) == 0)
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{
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OPENSSL_free(ret);
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ret = NULL;
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}
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return ret;
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}
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static int def_init_default(CONF *conf)
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{
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if (conf == NULL)
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return 0;
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conf->meth = &default_method;
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conf->meth_data = (void *)CONF_type_default;
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conf->data = NULL;
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return 1;
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}
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static int def_init_WIN32(CONF *conf)
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{
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if (conf == NULL)
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return 0;
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conf->meth = &WIN32_method;
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conf->meth_data = (void *)CONF_type_win32;
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conf->data = NULL;
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return 1;
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}
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static int def_destroy(CONF *conf)
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{
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if (def_destroy_data(conf))
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{
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OPENSSL_free(conf);
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return 1;
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}
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return 0;
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}
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static int def_destroy_data(CONF *conf)
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{
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if (conf == NULL)
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return 0;
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_CONF_free_data(conf);
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return 1;
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}
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static int def_load(CONF *conf, BIO *in, long *line)
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{
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#define BUFSIZE 512
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char btmp[16];
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int bufnum=0,i,ii;
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BUF_MEM *buff=NULL;
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char *s,*p,*end;
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int again,n;
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long eline=0;
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CONF_VALUE *v=NULL,*tv;
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CONF_VALUE *sv=NULL;
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char *section=NULL,*buf;
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STACK_OF(CONF_VALUE) *section_sk=NULL,*ts;
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char *start,*psection,*pname;
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void *h = (void *)(conf->data);
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if ((buff=BUF_MEM_new()) == NULL)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
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goto err;
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}
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section=(char *)OPENSSL_malloc(10);
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if (section == NULL)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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strcpy(section,"default");
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if (_CONF_new_data(conf) == 0)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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sv=_CONF_new_section(conf,section);
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if (sv == NULL)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
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goto err;
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}
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section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
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bufnum=0;
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for (;;)
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{
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again=0;
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if (!BUF_MEM_grow(buff,bufnum+BUFSIZE))
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
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goto err;
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}
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p= &(buff->data[bufnum]);
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*p='\0';
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BIO_gets(in, p, BUFSIZE-1);
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p[BUFSIZE-1]='\0';
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ii=i=strlen(p);
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if (i == 0) break;
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while (i > 0)
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{
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if ((p[i-1] != '\r') && (p[i-1] != '\n'))
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break;
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else
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i--;
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}
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/* we removed some trailing stuff so there is a new
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* line on the end. */
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if (i == ii)
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again=1; /* long line */
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else
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{
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p[i]='\0';
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eline++; /* another input line */
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}
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/* we now have a line with trailing \r\n removed */
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/* i is the number of bytes */
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bufnum+=i;
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v=NULL;
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/* check for line continuation */
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if (bufnum >= 1)
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{
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/* If we have bytes and the last char '\\' and
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* second last char is not '\\' */
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p= &(buff->data[bufnum-1]);
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if (IS_ESC(conf,p[0]) &&
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((bufnum <= 1) || !IS_ESC(conf,p[-1])))
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{
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bufnum--;
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again=1;
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}
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}
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if (again) continue;
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bufnum=0;
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buf=buff->data;
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clear_comments(conf, buf);
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n=strlen(buf);
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s=eat_ws(conf, buf);
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if (IS_EOF(conf,*s)) continue; /* blank line */
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if (*s == '[')
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{
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char *ss;
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s++;
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start=eat_ws(conf, s);
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ss=start;
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again:
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end=eat_alpha_numeric(conf, ss);
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p=eat_ws(conf, end);
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if (*p != ']')
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{
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if (*p != '\0')
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{
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ss=p;
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goto again;
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}
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CONFerr(CONF_F_CONF_LOAD_BIO,
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CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
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goto err;
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}
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*end='\0';
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if (!str_copy(conf,NULL,§ion,start)) goto err;
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if ((sv=_CONF_get_section(conf,section)) == NULL)
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sv=_CONF_new_section(conf,section);
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if (sv == NULL)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
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goto err;
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}
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section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
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continue;
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}
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else
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{
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pname=s;
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psection=NULL;
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end=eat_alpha_numeric(conf, s);
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if ((end[0] == ':') && (end[1] == ':'))
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{
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*end='\0';
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end+=2;
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psection=pname;
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pname=end;
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end=eat_alpha_numeric(conf, end);
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}
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p=eat_ws(conf, end);
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if (*p != '=')
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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CONF_R_MISSING_EQUAL_SIGN);
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goto err;
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}
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*end='\0';
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p++;
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start=eat_ws(conf, p);
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while (!IS_EOF(conf,*p))
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p++;
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p--;
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while ((p != start) && (IS_WS(conf,*p)))
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p--;
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p++;
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*p='\0';
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if (!(v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))))
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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ERR_R_MALLOC_FAILURE);
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goto err;
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}
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if (psection == NULL) psection=section;
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v->name=(char *)OPENSSL_malloc(strlen(pname)+1);
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v->value=NULL;
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if (v->name == NULL)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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ERR_R_MALLOC_FAILURE);
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goto err;
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}
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strcpy(v->name,pname);
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if (!str_copy(conf,psection,&(v->value),start)) goto err;
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if (strcmp(psection,section) != 0)
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{
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if ((tv=_CONF_get_section(conf,psection))
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== NULL)
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tv=_CONF_new_section(conf,psection);
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if (tv == NULL)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
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goto err;
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}
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ts=(STACK_OF(CONF_VALUE) *)tv->value;
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}
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else
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{
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tv=sv;
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ts=section_sk;
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}
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#if 1
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if (_CONF_add_string(conf, tv, v) == 0)
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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ERR_R_MALLOC_FAILURE);
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goto err;
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}
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#else
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v->section=tv->section;
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if (!sk_CONF_VALUE_push(ts,v))
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{
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CONFerr(CONF_F_CONF_LOAD_BIO,
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ERR_R_MALLOC_FAILURE);
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goto err;
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}
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vv=(CONF_VALUE *)lh_insert(conf->data,v);
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if (vv != NULL)
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{
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sk_CONF_VALUE_delete_ptr(ts,vv);
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OPENSSL_free(vv->name);
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OPENSSL_free(vv->value);
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OPENSSL_free(vv);
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}
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#endif
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v=NULL;
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}
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}
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if (buff != NULL) BUF_MEM_free(buff);
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if (section != NULL) OPENSSL_free(section);
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return(1);
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err:
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if (buff != NULL) BUF_MEM_free(buff);
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if (section != NULL) OPENSSL_free(section);
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if (line != NULL) *line=eline;
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sprintf(btmp,"%ld",eline);
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ERR_add_error_data(2,"line ",btmp);
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if ((h != conf->data) && (conf->data != NULL)) CONF_free(conf->data);
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if (v != NULL)
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{
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if (v->name != NULL) OPENSSL_free(v->name);
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if (v->value != NULL) OPENSSL_free(v->value);
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if (v != NULL) OPENSSL_free(v);
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}
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return(0);
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}
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static void clear_comments(CONF *conf, char *p)
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{
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char *to;
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to=p;
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for (;;)
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{
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if (IS_FCOMMENT(conf,*p))
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{
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*p='\0';
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return;
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}
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if (!IS_WS(conf,*p))
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{
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break;
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}
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p++;
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}
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for (;;)
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{
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if (IS_COMMENT(conf,*p))
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{
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*p='\0';
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return;
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}
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if (IS_DQUOTE(conf,*p))
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{
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p=scan_dquote(conf, p);
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continue;
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}
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if (IS_QUOTE(conf,*p))
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{
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p=scan_quote(conf, p);
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continue;
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}
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if (IS_ESC(conf,*p))
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{
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p=scan_esc(conf,p);
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continue;
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}
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if (IS_EOF(conf,*p))
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return;
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else
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p++;
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}
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}
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static int str_copy(CONF *conf, char *section, char **pto, char *from)
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{
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int q,r,rr=0,to=0,len=0;
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char *s,*e,*rp,*p,*rrp,*np,*cp,v;
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BUF_MEM *buf;
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if ((buf=BUF_MEM_new()) == NULL) return(0);
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len=strlen(from)+1;
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if (!BUF_MEM_grow(buf,len)) goto err;
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for (;;)
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{
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if (IS_QUOTE(conf,*from))
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{
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q= *from;
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from++;
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while (!IS_EOF(conf,*from) && (*from != q))
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{
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if (IS_ESC(conf,*from))
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{
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from++;
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if (IS_EOF(conf,*from)) break;
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}
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buf->data[to++]= *(from++);
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}
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if (*from == q) from++;
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}
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else if (IS_DQUOTE(conf,*from))
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{
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q= *from;
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from++;
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while (!IS_EOF(conf,*from))
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{
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if (*from == q)
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{
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if (*(from+1) == q)
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{
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from++;
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}
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else
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{
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break;
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}
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}
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buf->data[to++]= *(from++);
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}
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if (*from == q) from++;
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}
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else if (IS_ESC(conf,*from))
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{
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from++;
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v= *(from++);
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if (IS_EOF(conf,v)) break;
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else if (v == 'r') v='\r';
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else if (v == 'n') v='\n';
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else if (v == 'b') v='\b';
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else if (v == 't') v='\t';
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buf->data[to++]= v;
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}
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else if (IS_EOF(conf,*from))
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break;
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else if (*from == '$')
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{
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/* try to expand it */
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rrp=NULL;
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s= &(from[1]);
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if (*s == '{')
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q='}';
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else if (*s == '(')
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q=')';
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else q=0;
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|
|
if (q) s++;
|
|
cp=section;
|
|
e=np=s;
|
|
while (IS_ALPHA_NUMERIC(conf,*e))
|
|
e++;
|
|
if ((e[0] == ':') && (e[1] == ':'))
|
|
{
|
|
cp=np;
|
|
rrp=e;
|
|
rr= *e;
|
|
*rrp='\0';
|
|
e+=2;
|
|
np=e;
|
|
while (IS_ALPHA_NUMERIC(conf,*e))
|
|
e++;
|
|
}
|
|
r= *e;
|
|
*e='\0';
|
|
rp=e;
|
|
if (q)
|
|
{
|
|
if (r != q)
|
|
{
|
|
CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE);
|
|
goto err;
|
|
}
|
|
e++;
|
|
}
|
|
/* So at this point we have
|
|
* ns which is the start of the name string which is
|
|
* '\0' terminated.
|
|
* cs which is the start of the section string which is
|
|
* '\0' terminated.
|
|
* e is the 'next point after'.
|
|
* r and s are the chars replaced by the '\0'
|
|
* rp and sp is where 'r' and 's' came from.
|
|
*/
|
|
p=_CONF_get_string(conf,cp,np);
|
|
if (rrp != NULL) *rrp=rr;
|
|
*rp=r;
|
|
if (p == NULL)
|
|
{
|
|
CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE);
|
|
goto err;
|
|
}
|
|
BUF_MEM_grow(buf,(strlen(p)+len-(e-from)));
|
|
while (*p)
|
|
buf->data[to++]= *(p++);
|
|
from=e;
|
|
}
|
|
else
|
|
buf->data[to++]= *(from++);
|
|
}
|
|
buf->data[to]='\0';
|
|
if (*pto != NULL) OPENSSL_free(*pto);
|
|
*pto=buf->data;
|
|
OPENSSL_free(buf);
|
|
return(1);
|
|
err:
|
|
if (buf != NULL) BUF_MEM_free(buf);
|
|
return(0);
|
|
}
|
|
|
|
static char *eat_ws(CONF *conf, char *p)
|
|
{
|
|
while (IS_WS(conf,*p) && (!IS_EOF(conf,*p)))
|
|
p++;
|
|
return(p);
|
|
}
|
|
|
|
static char *eat_alpha_numeric(CONF *conf, char *p)
|
|
{
|
|
for (;;)
|
|
{
|
|
if (IS_ESC(conf,*p))
|
|
{
|
|
p=scan_esc(conf,p);
|
|
continue;
|
|
}
|
|
if (!IS_ALPHA_NUMERIC_PUNCT(conf,*p))
|
|
return(p);
|
|
p++;
|
|
}
|
|
}
|
|
|
|
static char *scan_quote(CONF *conf, char *p)
|
|
{
|
|
int q= *p;
|
|
|
|
p++;
|
|
while (!(IS_EOF(conf,*p)) && (*p != q))
|
|
{
|
|
if (IS_ESC(conf,*p))
|
|
{
|
|
p++;
|
|
if (IS_EOF(conf,*p)) return(p);
|
|
}
|
|
p++;
|
|
}
|
|
if (*p == q) p++;
|
|
return(p);
|
|
}
|
|
|
|
|
|
static char *scan_dquote(CONF *conf, char *p)
|
|
{
|
|
int q= *p;
|
|
|
|
p++;
|
|
while (!(IS_EOF(conf,*p)))
|
|
{
|
|
if (*p == q)
|
|
{
|
|
if (*(p+1) == q)
|
|
{
|
|
p++;
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
p++;
|
|
}
|
|
if (*p == q) p++;
|
|
return(p);
|
|
}
|
|
|
|
static void dump_value(CONF_VALUE *a, BIO *out)
|
|
{
|
|
if (a->name)
|
|
BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value);
|
|
else
|
|
BIO_printf(out, "[[%s]]\n", a->section);
|
|
}
|
|
|
|
static int def_dump(CONF *conf, BIO *out)
|
|
{
|
|
lh_doall_arg(conf->data, (void (*)())dump_value, out);
|
|
return 1;
|
|
}
|
|
|
|
static int def_is_number(CONF *conf, char c)
|
|
{
|
|
return IS_NUMBER(conf,c);
|
|
}
|
|
|
|
static int def_to_int(CONF *conf, char c)
|
|
{
|
|
return c - '0';
|
|
}
|
|
|