sl@0: /* crypto/conf/conf.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0:  /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: /* Part of the code in here was originally in conf.c, which is now removed */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <string.h>
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/stack.h>
sl@0: #include <openssl/lhash.h>
sl@0: #include <openssl/conf.h>
sl@0: #include <openssl/conf_api.h>
sl@0: #include "conf_def.h"
sl@0: #include <openssl/buffer.h>
sl@0: #include <openssl/err.h>
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: static char *eat_ws(CONF *conf, char *p);
sl@0: static char *eat_alpha_numeric(CONF *conf, char *p);
sl@0: static void clear_comments(CONF *conf, char *p);
sl@0: static int str_copy(CONF *conf,char *section,char **to, char *from);
sl@0: static char *scan_quote(CONF *conf, char *p);
sl@0: static char *scan_dquote(CONF *conf, char *p);
sl@0: #define scan_esc(conf,p)	(((IS_EOF((conf),(p)[1]))?((p)+1):((p)+2)))
sl@0: 
sl@0: static CONF *def_create(CONF_METHOD *meth);
sl@0: static int def_init_default(CONF *conf);
sl@0: static int def_init_WIN32(CONF *conf);
sl@0: static int def_destroy(CONF *conf);
sl@0: static int def_destroy_data(CONF *conf);
sl@0: static int def_load(CONF *conf, const char *name, long *eline);
sl@0: static int def_load_bio(CONF *conf, BIO *bp, long *eline);
sl@0: static int def_dump(const CONF *conf, BIO *bp);
sl@0: static int def_is_number(const CONF *conf, char c);
sl@0: static int def_to_int(const CONF *conf, char c);
sl@0: 
sl@0: const char CONF_def_version[]="CONF_def" OPENSSL_VERSION_PTEXT;
sl@0: 
sl@0: #ifndef EMULATOR
sl@0: static CONF_METHOD default_method = {
sl@0: 	"OpenSSL default",
sl@0: 	def_create,
sl@0: 	def_init_default,
sl@0: 	def_destroy,
sl@0: 	def_destroy_data,
sl@0: 	def_load_bio,
sl@0: 	def_dump,
sl@0: 	def_is_number,
sl@0: 	def_to_int,
sl@0: 	def_load
sl@0: 	};
sl@0: 
sl@0: static CONF_METHOD WIN32_method = {
sl@0: 	"WIN32",
sl@0: 	def_create,
sl@0: 	def_init_WIN32,
sl@0: 	def_destroy,
sl@0: 	def_destroy_data,
sl@0: 	def_load_bio,
sl@0: 	def_dump,
sl@0: 	def_is_number,
sl@0: 	def_to_int,
sl@0: 	def_load
sl@0: 	};
sl@0: #else
sl@0: GET_STATIC_VAR_FROM_TLS(default_method,conf_def,CONF_METHOD)
sl@0: #define default_method (*GET_WSD_VAR_NAME(default_method,conf_def, s)())
sl@0: const CONF_METHOD temp_s_default_method = {
sl@0: 	"OpenSSL default",
sl@0: 	def_create,
sl@0: 	def_init_default,
sl@0: 	def_destroy,
sl@0: 	def_destroy_data,
sl@0: 	def_load_bio,
sl@0: 	def_dump,
sl@0: 	def_is_number,
sl@0: 	def_to_int,
sl@0: 	def_load
sl@0: 	};
sl@0: 
sl@0: GET_STATIC_VAR_FROM_TLS(WIN32_method,conf_def,CONF_METHOD)
sl@0: #define WIN32_method (*GET_WSD_VAR_NAME(WIN32_method,conf_def, s)())
sl@0: const CONF_METHOD temp_s_WIN32_method = {
sl@0: 	"WIN32",
sl@0: 	def_create,
sl@0: 	def_init_WIN32,
sl@0: 	def_destroy,
sl@0: 	def_destroy_data,
sl@0: 	def_load_bio,
sl@0: 	def_dump,
sl@0: 	def_is_number,
sl@0: 	def_to_int,
sl@0: 	def_load
sl@0: 	};
sl@0: 
sl@0: 
sl@0: #endif	
sl@0: 
sl@0: EXPORT_C CONF_METHOD *NCONF_default()
sl@0: 	{
sl@0: 	return &default_method;
sl@0: 	}
sl@0: CONF_METHOD *NCONF_WIN32()
sl@0: 	{
sl@0: 	return &WIN32_method;
sl@0: 	}
sl@0: 
sl@0: static CONF *def_create(CONF_METHOD *meth)
sl@0: 	{
sl@0: 	CONF *ret;
sl@0: 
sl@0: 	ret = (CONF *)OPENSSL_malloc(sizeof(CONF) + sizeof(unsigned short *));
sl@0: 	if (ret)
sl@0: 		if (meth->init(ret) == 0)
sl@0: 			{
sl@0: 			OPENSSL_free(ret);
sl@0: 			ret = NULL;
sl@0: 			}
sl@0: 	return ret;
sl@0: 	}
sl@0: 	
sl@0: static int def_init_default(CONF *conf)
sl@0: 	{
sl@0: 	if (conf == NULL)
sl@0: 		return 0;
sl@0: 
sl@0: 	conf->meth = &default_method;
sl@0: 	conf->meth_data = (void *)CONF_type_default;
sl@0: 	conf->data = NULL;
sl@0: 
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: static int def_init_WIN32(CONF *conf)
sl@0: 	{
sl@0: 	if (conf == NULL)
sl@0: 		return 0;
sl@0: 
sl@0: 	conf->meth = &WIN32_method;
sl@0: 	conf->meth_data = (void *)CONF_type_win32;
sl@0: 	conf->data = NULL;
sl@0: 
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: static int def_destroy(CONF *conf)
sl@0: 	{
sl@0: 	if (def_destroy_data(conf))
sl@0: 		{
sl@0: 		OPENSSL_free(conf);
sl@0: 		return 1;
sl@0: 		}
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: static int def_destroy_data(CONF *conf)
sl@0: 	{
sl@0: 	if (conf == NULL)
sl@0: 		return 0;
sl@0: 	_CONF_free_data(conf);
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: static int def_load(CONF *conf, const char *name, long *line)
sl@0: 	{
sl@0: 	int ret;
sl@0: 	BIO *in=NULL;
sl@0: 
sl@0: #ifdef OPENSSL_SYS_VMS
sl@0: 	in=BIO_new_file(name, "r");
sl@0: #else
sl@0: 	in=BIO_new_file(name, "rb");
sl@0: #endif
sl@0: 	if (in == NULL)
sl@0: 		{
sl@0: 		if (ERR_GET_REASON(ERR_peek_last_error()) == BIO_R_NO_SUCH_FILE)
sl@0: 			CONFerr(CONF_F_DEF_LOAD,CONF_R_NO_SUCH_FILE);
sl@0: 		else
sl@0: 			CONFerr(CONF_F_DEF_LOAD,ERR_R_SYS_LIB);
sl@0: 		return 0;
sl@0: 		}
sl@0: 
sl@0: 	ret = def_load_bio(conf, in, line);
sl@0: 	BIO_free(in);
sl@0: 
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: static int def_load_bio(CONF *conf, BIO *in, long *line)
sl@0: 	{
sl@0: /* The macro BUFSIZE conflicts with a system macro in VxWorks */
sl@0: #define CONFBUFSIZE	512
sl@0: 	int bufnum=0,i,ii;
sl@0: 	BUF_MEM *buff=NULL;
sl@0: 	char *s,*p,*end;
sl@0: 	int again,n;
sl@0: 	long eline=0;
sl@0: 	char btmp[DECIMAL_SIZE(eline)+1];
sl@0: 	CONF_VALUE *v=NULL,*tv;
sl@0: 	CONF_VALUE *sv=NULL;
sl@0: 	char *section=NULL,*buf;
sl@0: 	STACK_OF(CONF_VALUE) *section_sk=NULL,*ts;
sl@0: 	char *start,*psection,*pname;
sl@0: 	void *h = (void *)(conf->data);
sl@0: 
sl@0: 	if ((buff=BUF_MEM_new()) == NULL)
sl@0: 		{
sl@0: 		CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_BUF_LIB);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	section=(char *)OPENSSL_malloc(10);
sl@0: 	if (section == NULL)
sl@0: 		{
sl@0: 		CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	BUF_strlcpy(section,"default",10);
sl@0: 
sl@0: 	if (_CONF_new_data(conf) == 0)
sl@0: 		{
sl@0: 		CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	sv=_CONF_new_section(conf,section);
sl@0: 	if (sv == NULL)
sl@0: 		{
sl@0: 		CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 					CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
sl@0: 
sl@0: 	bufnum=0;
sl@0: 	again=0;
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		if (!BUF_MEM_grow(buff,bufnum+CONFBUFSIZE))
sl@0: 			{
sl@0: 			CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_BUF_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		p= &(buff->data[bufnum]);
sl@0: 		*p='\0';
sl@0: 		BIO_gets(in, p, CONFBUFSIZE-1);
sl@0: 		p[CONFBUFSIZE-1]='\0';
sl@0: 		ii=i=strlen(p);
sl@0: 		if (i == 0 && !again) break;
sl@0: 		again=0;
sl@0: 		while (i > 0)
sl@0: 			{
sl@0: 			if ((p[i-1] != '\r') && (p[i-1] != '\n'))
sl@0: 				break;
sl@0: 			else
sl@0: 				i--;
sl@0: 			}
sl@0: 		/* we removed some trailing stuff so there is a new
sl@0: 		 * line on the end. */
sl@0: 		if (ii && i == ii)
sl@0: 			again=1; /* long line */
sl@0: 		else
sl@0: 			{
sl@0: 			p[i]='\0';
sl@0: 			eline++; /* another input line */
sl@0: 			}
sl@0: 
sl@0: 		/* we now have a line with trailing \r\n removed */
sl@0: 
sl@0: 		/* i is the number of bytes */
sl@0: 		bufnum+=i;
sl@0: 
sl@0: 		v=NULL;
sl@0: 		/* check for line continuation */
sl@0: 		if (bufnum >= 1)
sl@0: 			{
sl@0: 			/* If we have bytes and the last char '\\' and
sl@0: 			 * second last char is not '\\' */
sl@0: 			p= &(buff->data[bufnum-1]);
sl@0: 			if (IS_ESC(conf,p[0]) &&
sl@0: 				((bufnum <= 1) || !IS_ESC(conf,p[-1])))
sl@0: 				{
sl@0: 				bufnum--;
sl@0: 				again=1;
sl@0: 				}
sl@0: 			}
sl@0: 		if (again) continue;
sl@0: 		bufnum=0;
sl@0: 		buf=buff->data;
sl@0: 
sl@0: 		clear_comments(conf, buf);
sl@0: 		n=strlen(buf);
sl@0: 		s=eat_ws(conf, buf);
sl@0: 		if (IS_EOF(conf,*s)) continue; /* blank line */
sl@0: 		if (*s == '[')
sl@0: 			{
sl@0: 			char *ss;
sl@0: 
sl@0: 			s++;
sl@0: 			start=eat_ws(conf, s);
sl@0: 			ss=start;
sl@0: again:
sl@0: 			end=eat_alpha_numeric(conf, ss);
sl@0: 			p=eat_ws(conf, end);
sl@0: 			if (*p != ']')
sl@0: 				{
sl@0: 				if (*p != '\0')
sl@0: 					{
sl@0: 					ss=p;
sl@0: 					goto again;
sl@0: 					}
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 					CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			*end='\0';
sl@0: 			if (!str_copy(conf,NULL,&section,start)) goto err;
sl@0: 			if ((sv=_CONF_get_section(conf,section)) == NULL)
sl@0: 				sv=_CONF_new_section(conf,section);
sl@0: 			if (sv == NULL)
sl@0: 				{
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 					CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
sl@0: 			continue;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			pname=s;
sl@0: 			psection=NULL;
sl@0: 			end=eat_alpha_numeric(conf, s);
sl@0: 			if ((end[0] == ':') && (end[1] == ':'))
sl@0: 				{
sl@0: 				*end='\0';
sl@0: 				end+=2;
sl@0: 				psection=pname;
sl@0: 				pname=end;
sl@0: 				end=eat_alpha_numeric(conf, end);
sl@0: 				}
sl@0: 			p=eat_ws(conf, end);
sl@0: 			if (*p != '=')
sl@0: 				{
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 						CONF_R_MISSING_EQUAL_SIGN);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			*end='\0';
sl@0: 			p++;
sl@0: 			start=eat_ws(conf, p);
sl@0: 			while (!IS_EOF(conf,*p))
sl@0: 				p++;
sl@0: 			p--;
sl@0: 			while ((p != start) && (IS_WS(conf,*p)))
sl@0: 				p--;
sl@0: 			p++;
sl@0: 			*p='\0';
sl@0: 
sl@0: 			if (!(v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))))
sl@0: 				{
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 							ERR_R_MALLOC_FAILURE);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			if (psection == NULL) psection=section;
sl@0: 			v->name=(char *)OPENSSL_malloc(strlen(pname)+1);
sl@0: 			v->value=NULL;
sl@0: 			if (v->name == NULL)
sl@0: 				{
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 							ERR_R_MALLOC_FAILURE);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			BUF_strlcpy(v->name,pname,strlen(pname)+1);
sl@0: 			if (!str_copy(conf,psection,&(v->value),start)) goto err;
sl@0: 
sl@0: 			if (strcmp(psection,section) != 0)
sl@0: 				{
sl@0: 				if ((tv=_CONF_get_section(conf,psection))
sl@0: 					== NULL)
sl@0: 					tv=_CONF_new_section(conf,psection);
sl@0: 				if (tv == NULL)
sl@0: 					{
sl@0: 					CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 					   CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
sl@0: 					goto err;
sl@0: 					}
sl@0: 				ts=(STACK_OF(CONF_VALUE) *)tv->value;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				tv=sv;
sl@0: 				ts=section_sk;
sl@0: 				}
sl@0: #if 1
sl@0: 			if (_CONF_add_string(conf, tv, v) == 0)
sl@0: 				{
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 							ERR_R_MALLOC_FAILURE);
sl@0: 				goto err;
sl@0: 				}
sl@0: #else
sl@0: 			v->section=tv->section;	
sl@0: 			if (!sk_CONF_VALUE_push(ts,v))
sl@0: 				{
sl@0: 				CONFerr(CONF_F_DEF_LOAD_BIO,
sl@0: 							ERR_R_MALLOC_FAILURE);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			vv=(CONF_VALUE *)lh_insert(conf->data,v);
sl@0: 			if (vv != NULL)
sl@0: 				{
sl@0: 				sk_CONF_VALUE_delete_ptr(ts,vv);
sl@0: 				OPENSSL_free(vv->name);
sl@0: 				OPENSSL_free(vv->value);
sl@0: 				OPENSSL_free(vv);
sl@0: 				}
sl@0: #endif
sl@0: 			v=NULL;
sl@0: 			}
sl@0: 		}
sl@0: 	if (buff != NULL) BUF_MEM_free(buff);
sl@0: 	if (section != NULL) OPENSSL_free(section);
sl@0: 	return(1);
sl@0: err:
sl@0: 	if (buff != NULL) BUF_MEM_free(buff);
sl@0: 	if (section != NULL) OPENSSL_free(section);
sl@0: 	if (line != NULL) *line=eline;
sl@0: 	BIO_snprintf(btmp,sizeof btmp,"%ld",eline);
sl@0: 	ERR_add_error_data(2,"line ",btmp);
sl@0: 	if ((h != conf->data) && (conf->data != NULL))
sl@0: 		{
sl@0: 		CONF_free(conf->data);
sl@0: 		conf->data=NULL;
sl@0: 		}
sl@0: 	if (v != NULL)
sl@0: 		{
sl@0: 		if (v->name != NULL) OPENSSL_free(v->name);
sl@0: 		if (v->value != NULL) OPENSSL_free(v->value);
sl@0: 		if (v != NULL) OPENSSL_free(v);
sl@0: 		}
sl@0: 	return(0);
sl@0: 	}
sl@0: 
sl@0: static void clear_comments(CONF *conf, char *p)
sl@0: 	{
sl@0: 	char *to;
sl@0: 
sl@0: 	to=p;
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		if (IS_FCOMMENT(conf,*p))
sl@0: 			{
sl@0: 			*p='\0';
sl@0: 			return;
sl@0: 			}
sl@0: 		if (!IS_WS(conf,*p))
sl@0: 			{
sl@0: 			break;
sl@0: 			}
sl@0: 		p++;
sl@0: 		}
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		if (IS_COMMENT(conf,*p))
sl@0: 			{
sl@0: 			*p='\0';
sl@0: 			return;
sl@0: 			}
sl@0: 		if (IS_DQUOTE(conf,*p))
sl@0: 			{
sl@0: 			p=scan_dquote(conf, p);
sl@0: 			continue;
sl@0: 			}
sl@0: 		if (IS_QUOTE(conf,*p))
sl@0: 			{
sl@0: 			p=scan_quote(conf, p);
sl@0: 			continue;
sl@0: 			}
sl@0: 		if (IS_ESC(conf,*p))
sl@0: 			{
sl@0: 			p=scan_esc(conf,p);
sl@0: 			continue;
sl@0: 			}
sl@0: 		if (IS_EOF(conf,*p))
sl@0: 			return;
sl@0: 		else
sl@0: 			p++;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: static int str_copy(CONF *conf, char *section, char **pto, char *from)
sl@0: 	{
sl@0: 	int q,r,rr=0,to=0,len=0;
sl@0: 	char *s,*e,*rp,*p,*rrp,*np,*cp,v;
sl@0: 	BUF_MEM *buf;
sl@0: 
sl@0: 	if ((buf=BUF_MEM_new()) == NULL) return(0);
sl@0: 
sl@0: 	len=strlen(from)+1;
sl@0: 	if (!BUF_MEM_grow(buf,len)) goto err;
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		if (IS_QUOTE(conf,*from))
sl@0: 			{
sl@0: 			q= *from;
sl@0: 			from++;
sl@0: 			while (!IS_EOF(conf,*from) && (*from != q))
sl@0: 				{
sl@0: 				if (IS_ESC(conf,*from))
sl@0: 					{
sl@0: 					from++;
sl@0: 					if (IS_EOF(conf,*from)) break;
sl@0: 					}
sl@0: 				buf->data[to++]= *(from++);
sl@0: 				}
sl@0: 			if (*from == q) from++;
sl@0: 			}
sl@0: 		else if (IS_DQUOTE(conf,*from))
sl@0: 			{
sl@0: 			q= *from;
sl@0: 			from++;
sl@0: 			while (!IS_EOF(conf,*from))
sl@0: 				{
sl@0: 				if (*from == q)
sl@0: 					{
sl@0: 					if (*(from+1) == q)
sl@0: 						{
sl@0: 						from++;
sl@0: 						}
sl@0: 					else
sl@0: 						{
sl@0: 						break;
sl@0: 						}
sl@0: 					}
sl@0: 				buf->data[to++]= *(from++);
sl@0: 				}
sl@0: 			if (*from == q) from++;
sl@0: 			}
sl@0: 		else if (IS_ESC(conf,*from))
sl@0: 			{
sl@0: 			from++;
sl@0: 			v= *(from++);
sl@0: 			if (IS_EOF(conf,v)) break;
sl@0: 			else if (v == 'r') v='\r';
sl@0: 			else if (v == 'n') v='\n';
sl@0: 			else if (v == 'b') v='\b';
sl@0: 			else if (v == 't') v='\t';
sl@0: 			buf->data[to++]= v;
sl@0: 			}
sl@0: 		else if (IS_EOF(conf,*from))
sl@0: 			break;
sl@0: 		else if (*from == '$')
sl@0: 			{
sl@0: 			/* try to expand it */
sl@0: 			rrp=NULL;
sl@0: 			s= &(from[1]);
sl@0: 			if (*s == '{')
sl@0: 				q='}';
sl@0: 			else if (*s == '(')
sl@0: 				q=')';
sl@0: 			else q=0;
sl@0: 
sl@0: 			if (q) s++;
sl@0: 			cp=section;
sl@0: 			e=np=s;
sl@0: 			while (IS_ALPHA_NUMERIC(conf,*e))
sl@0: 				e++;
sl@0: 			if ((e[0] == ':') && (e[1] == ':'))
sl@0: 				{
sl@0: 				cp=np;
sl@0: 				rrp=e;
sl@0: 				rr= *e;
sl@0: 				*rrp='\0';
sl@0: 				e+=2;
sl@0: 				np=e;
sl@0: 				while (IS_ALPHA_NUMERIC(conf,*e))
sl@0: 					e++;
sl@0: 				}
sl@0: 			r= *e;
sl@0: 			*e='\0';
sl@0: 			rp=e;
sl@0: 			if (q)
sl@0: 				{
sl@0: 				if (r != q)
sl@0: 					{
sl@0: 					CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE);
sl@0: 					goto err;
sl@0: 					}
sl@0: 				e++;
sl@0: 				}
sl@0: 			/* So at this point we have
sl@0: 			 * np which is the start of the name string which is
sl@0: 			 *   '\0' terminated. 
sl@0: 			 * cp which is the start of the section string which is
sl@0: 			 *   '\0' terminated.
sl@0: 			 * e is the 'next point after'.
sl@0: 			 * r and rr are the chars replaced by the '\0'
sl@0: 			 * rp and rrp is where 'r' and 'rr' came from.
sl@0: 			 */
sl@0: 			p=_CONF_get_string(conf,cp,np);
sl@0: 			if (rrp != NULL) *rrp=rr;
sl@0: 			*rp=r;
sl@0: 			if (p == NULL)
sl@0: 				{
sl@0: 				CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			BUF_MEM_grow_clean(buf,(strlen(p)+buf->length-(e-from)));
sl@0: 			while (*p)
sl@0: 				buf->data[to++]= *(p++);
sl@0: 
sl@0: 			/* Since we change the pointer 'from', we also have
sl@0: 			   to change the perceived length of the string it
sl@0: 			   points at.  /RL */
sl@0: 			len -= e-from;
sl@0: 			from=e;
sl@0: 
sl@0: 			/* In case there were no braces or parenthesis around
sl@0: 			   the variable reference, we have to put back the
sl@0: 			   character that was replaced with a '\0'.  /RL */
sl@0: 			*rp = r;
sl@0: 			}
sl@0: 		else
sl@0: 			buf->data[to++]= *(from++);
sl@0: 		}
sl@0: 	buf->data[to]='\0';
sl@0: 	if (*pto != NULL) OPENSSL_free(*pto);
sl@0: 	*pto=buf->data;
sl@0: 	OPENSSL_free(buf);
sl@0: 	return(1);
sl@0: err:
sl@0: 	if (buf != NULL) BUF_MEM_free(buf);
sl@0: 	return(0);
sl@0: 	}
sl@0: 
sl@0: static char *eat_ws(CONF *conf, char *p)
sl@0: 	{
sl@0: 	while (IS_WS(conf,*p) && (!IS_EOF(conf,*p)))
sl@0: 		p++;
sl@0: 	return(p);
sl@0: 	}
sl@0: 
sl@0: static char *eat_alpha_numeric(CONF *conf, char *p)
sl@0: 	{
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		if (IS_ESC(conf,*p))
sl@0: 			{
sl@0: 			p=scan_esc(conf,p);
sl@0: 			continue;
sl@0: 			}
sl@0: 		if (!IS_ALPHA_NUMERIC_PUNCT(conf,*p))
sl@0: 			return(p);
sl@0: 		p++;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: static char *scan_quote(CONF *conf, char *p)
sl@0: 	{
sl@0: 	int q= *p;
sl@0: 
sl@0: 	p++;
sl@0: 	while (!(IS_EOF(conf,*p)) && (*p != q))
sl@0: 		{
sl@0: 		if (IS_ESC(conf,*p))
sl@0: 			{
sl@0: 			p++;
sl@0: 			if (IS_EOF(conf,*p)) return(p);
sl@0: 			}
sl@0: 		p++;
sl@0: 		}
sl@0: 	if (*p == q) p++;
sl@0: 	return(p);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: static char *scan_dquote(CONF *conf, char *p)
sl@0: 	{
sl@0: 	int q= *p;
sl@0: 
sl@0: 	p++;
sl@0: 	while (!(IS_EOF(conf,*p)))
sl@0: 		{
sl@0: 		if (*p == q)
sl@0: 			{
sl@0: 			if (*(p+1) == q)
sl@0: 				{
sl@0: 				p++;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				break;
sl@0: 				}
sl@0: 			}
sl@0: 		p++;
sl@0: 		}
sl@0: 	if (*p == q) p++;
sl@0: 	return(p);
sl@0: 	}
sl@0: 
sl@0: static void dump_value(CONF_VALUE *a, BIO *out)
sl@0: 	{
sl@0: 	if (a->name)
sl@0: 		BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value);
sl@0: 	else
sl@0: 		BIO_printf(out, "[[%s]]\n", a->section);
sl@0: 	}
sl@0: 
sl@0: static IMPLEMENT_LHASH_DOALL_ARG_FN(dump_value, CONF_VALUE *, BIO *)
sl@0: 
sl@0: static int def_dump(const CONF *conf, BIO *out)
sl@0: 	{
sl@0: 	lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(dump_value), out);
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: static int def_is_number(const CONF *conf, char c)
sl@0: 	{
sl@0: 	return IS_NUMBER(conf,c);
sl@0: 	}
sl@0: 
sl@0: static int def_to_int(const CONF *conf, char c)
sl@0: 	{
sl@0: 	return c - '0';
sl@0: 	}
sl@0: