crypto/txt_db/txt_db.c - platform/external/openssl - Git at Google

 /* crypto/txt_db/txt_db.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
  *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
  *    "This product includes cryptographic software written by
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
  * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include "cryptlib.h"
 #include <openssl/buffer.h>
 #include <openssl/txt_db.h>

 #undef BUFSIZE
 #define BUFSIZE	512

 const char TXT_DB_version[]="TXT_DB" OPENSSL_VERSION_PTEXT;

 TXT_DB *TXT_DB_read(BIO *in, int num)
 	{
 	TXT_DB *ret=NULL;
 	int er=1;
 	int esc=0;
 	long ln=0;
 	int i,add,n;
 	int size=BUFSIZE;
 	int offset=0;
 	char *p,*f;
 	OPENSSL_STRING *pp;
 	BUF_MEM *buf=NULL;

 	if ((buf=BUF_MEM_new()) == NULL) goto err;
 	if (!BUF_MEM_grow(buf,size)) goto err;

 	if ((ret=OPENSSL_malloc(sizeof(TXT_DB))) == NULL)
 		goto err;
 	ret->num_fields=num;
 	ret->index=NULL;
 	ret->qual=NULL;
 	if ((ret->data=sk_OPENSSL_PSTRING_new_null()) == NULL)
 		goto err;
 	if ((ret->index=OPENSSL_malloc(sizeof(*ret->index)*num)) == NULL)
 		goto err;
 	if ((ret->qual=OPENSSL_malloc(sizeof(*(ret->qual))*num)) == NULL)
 		goto err;
 	for (i=0; i<num; i++)
 		{
 		ret->index[i]=NULL;
 		ret->qual[i]=NULL;
 		}

 	add=(num+1)*sizeof(char *);
 	buf->data[size-1]='\0';
 	offset=0;
 	for (;;)
 		{
 		if (offset != 0)
 			{
 			size+=BUFSIZE;
 			if (!BUF_MEM_grow_clean(buf,size)) goto err;
 			}
 		buf->data[offset]='\0';
 		BIO_gets(in,&(buf->data[offset]),size-offset);
 		ln++;
 		if (buf->data[offset] == '\0') break;
 		if ((offset == 0) && (buf->data[0] == '#')) continue;
 		i=strlen(&(buf->data[offset]));
 		offset+=i;
 		if (buf->data[offset-1] != '\n')
 			continue;
 		else
 			{
 			buf->data[offset-1]='\0'; /* blat the '\n' */
 			if (!(p=OPENSSL_malloc(add+offset))) goto err;
 			offset=0;
 			}
 		pp=(char **)p;
 		p+=add;
 		n=0;
 		pp[n++]=p;
 		i=0;
 		f=buf->data;

 		esc=0;
 		for (;;)
 			{
 			if (*f == '\0') break;
 			if (*f == '\t')
 				{
 				if (esc)
 					p--;
 				else
 					{
 					*(p++)='\0';
 					f++;
 					if (n >=  num) break;
 					pp[n++]=p;
 					continue;
 					}
 				}
 			esc=(*f == '\\');
 			*(p++)= *(f++);
 			}
 		*(p++)='\0';
 		if ((n != num) || (*f != '\0'))
 			{
 #if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)	/* temporary fix :-( */
 			fprintf(stderr,"wrong number of fields on line %ld (looking for field %d, got %d, '%s' left)\n",ln,num,n,f);
 #endif
 			er=2;
 			goto err;
 			}
 		pp[n]=p;
 		if (!sk_OPENSSL_PSTRING_push(ret->data,pp))
 			{
 #if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)	/* temporary fix :-( */
 			fprintf(stderr,"failure in sk_push\n");
 #endif
 			er=2;
 			goto err;
 			}
 		}
 	er=0;
 err:
 	BUF_MEM_free(buf);
 	if (er)
 		{
 #if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
 		if (er == 1) fprintf(stderr,"OPENSSL_malloc failure\n");
 #endif
 		if (ret != NULL)
 			{
 			if (ret->data != NULL) sk_OPENSSL_PSTRING_free(ret->data);
 			if (ret->index != NULL) OPENSSL_free(ret->index);
 			if (ret->qual != NULL) OPENSSL_free(ret->qual);
 			if (ret != NULL) OPENSSL_free(ret);
 			}
 		return(NULL);
 		}
 	else
 		return(ret);
 	}

 OPENSSL_STRING *TXT_DB_get_by_index(TXT_DB *db, int idx, OPENSSL_STRING *value)
 	{
 	OPENSSL_STRING *ret;
 	LHASH_OF(OPENSSL_STRING) *lh;

 	if (idx >= db->num_fields)
 		{
 		db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
 		return(NULL);
 		}
 	lh=db->index[idx];
 	if (lh == NULL)
 		{
 		db->error=DB_ERROR_NO_INDEX;
 		return(NULL);
 		}
 	ret=lh_OPENSSL_STRING_retrieve(lh,value);
 	db->error=DB_ERROR_OK;
 	return(ret);
 	}

 int TXT_DB_create_index(TXT_DB *db, int field, int (*qual)(OPENSSL_STRING *),
 			LHASH_HASH_FN_TYPE hash, LHASH_COMP_FN_TYPE cmp)
 	{
 	LHASH_OF(OPENSSL_STRING) *idx;
 	OPENSSL_STRING *r;
 	int i,n;

 	if (field >= db->num_fields)
 		{
 		db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
 		return(0);
 		}
 	/* FIXME: we lose type checking at this point */
 	if ((idx=(LHASH_OF(OPENSSL_STRING) *)lh_new(hash,cmp)) == NULL)
 		{
 		db->error=DB_ERROR_MALLOC;
 		return(0);
 		}
 	n=sk_OPENSSL_PSTRING_num(db->data);
 	for (i=0; i<n; i++)
 		{
 		r=sk_OPENSSL_PSTRING_value(db->data,i);
 		if ((qual != NULL) && (qual(r) == 0)) continue;
 		if ((r=lh_OPENSSL_STRING_insert(idx,r)) != NULL)
 			{
 			db->error=DB_ERROR_INDEX_CLASH;
 			db->arg1=sk_OPENSSL_PSTRING_find(db->data,r);
 			db->arg2=i;
 			lh_OPENSSL_STRING_free(idx);
 			return(0);
 			}
 		}
 	if (db->index[field] != NULL) lh_OPENSSL_STRING_free(db->index[field]);
 	db->index[field]=idx;
 	db->qual[field]=qual;
 	return(1);
 	}

 long TXT_DB_write(BIO *out, TXT_DB *db)
 	{
 	long i,j,n,nn,l,tot=0;
 	char *p,**pp,*f;
 	BUF_MEM *buf=NULL;
 	long ret= -1;

 	if ((buf=BUF_MEM_new()) == NULL)
 		goto err;
 	n=sk_OPENSSL_PSTRING_num(db->data);
 	nn=db->num_fields;
 	for (i=0; i<n; i++)
 		{
 		pp=sk_OPENSSL_PSTRING_value(db->data,i);

 		l=0;
 		for (j=0; j<nn; j++)
 			{
 			if (pp[j] != NULL)
 				l+=strlen(pp[j]);
 			}
 		if (!BUF_MEM_grow_clean(buf,(int)(l*2+nn))) goto err;

 		p=buf->data;
 		for (j=0; j<nn; j++)
 			{
 			f=pp[j];
 			if (f != NULL)
 				for (;;)
 					{
 					if (*f == '\0') break;
 					if (*f == '\t') *(p++)='\\';
 					*(p++)= *(f++);
 					}
 			*(p++)='\t';
 			}
 		p[-1]='\n';
 		j=p-buf->data;
 		if (BIO_write(out,buf->data,(int)j) != j)
 			goto err;
 		tot+=j;
 		}
 	ret=tot;
 err:
 	if (buf != NULL) BUF_MEM_free(buf);
 	return(ret);
 	}

 int TXT_DB_insert(TXT_DB *db, OPENSSL_STRING *row)
 	{
 	int i;
 	OPENSSL_STRING *r;

 	for (i=0; i<db->num_fields; i++)
 		{
 		if (db->index[i] != NULL)
 			{
 			if ((db->qual[i] != NULL) &&
 				(db->qual[i](row) == 0)) continue;
 			r=lh_OPENSSL_STRING_retrieve(db->index[i],row);
 			if (r != NULL)
 				{
 				db->error=DB_ERROR_INDEX_CLASH;
 				db->arg1=i;
 				db->arg_row=r;
 				goto err;
 				}
 			}
 		}
 	/* We have passed the index checks, now just append and insert */
 	if (!sk_OPENSSL_PSTRING_push(db->data,row))
 		{
 		db->error=DB_ERROR_MALLOC;
 		goto err;
 		}

 	for (i=0; i<db->num_fields; i++)
 		{
 		if (db->index[i] != NULL)
 			{
 			if ((db->qual[i] != NULL) &&
 				(db->qual[i](row) == 0)) continue;
 			(void)lh_OPENSSL_STRING_insert(db->index[i],row);
 			}
 		}
 	return(1);
 err:
 	return(0);
 	}

 void TXT_DB_free(TXT_DB *db)
 	{
 	int i,n;
 	char **p,*max;

 	if(db == NULL)
 	    return;

 	if (db->index != NULL)
 		{
 		for (i=db->num_fields-1; i>=0; i--)
 			if (db->index[i] != NULL) lh_OPENSSL_STRING_free(db->index[i]);
 		OPENSSL_free(db->index);
 		}
 	if (db->qual != NULL)
 		OPENSSL_free(db->qual);
 	if (db->data != NULL)
 		{
 		for (i=sk_OPENSSL_PSTRING_num(db->data)-1; i>=0; i--)
 			{
 			/* check if any 'fields' have been allocated
 			 * from outside of the initial block */
 			p=sk_OPENSSL_PSTRING_value(db->data,i);
 			max=p[db->num_fields]; /* last address */
 			if (max == NULL) /* new row */
 				{
 				for (n=0; n<db->num_fields; n++)
 					if (p[n] != NULL) OPENSSL_free(p[n]);
 				}
 			else
 				{
 				for (n=0; n<db->num_fields; n++)
 					{
 					if (((p[n] < (char *)p) || (p[n] > max))
 						&& (p[n] != NULL))
 						OPENSSL_free(p[n]);
 					}
 				}
 			OPENSSL_free(sk_OPENSSL_PSTRING_value(db->data,i));
 			}
 		sk_OPENSSL_PSTRING_free(db->data);
 		}
 	OPENSSL_free(db);
 	}
	/* crypto/txt_db/txt_db.c */
	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
	* All rights reserved.
	*
	* This package is an SSL implementation written
	* by Eric Young (eay@cryptsoft.com).
	* The implementation was written so as to conform with Netscapes SSL.
	*
	* This library is free for commercial and non-commercial use as long as
	* the following conditions are aheared to. The following conditions
	* apply to all code found in this distribution, be it the RC4, RSA,
	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	* included with this distribution is covered by the same copyright terms
	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	*
	* Copyright remains Eric Young's, and as such any Copyright notices in
	* the code are not to be removed.
	* If this package is used in a product, Eric Young should be given attribution
	* as the author of the parts of the library used.
	* This can be in the form of a textual message at program startup or
	* in documentation (online or textual) provided with the package.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. All advertising materials mentioning features or use of this software
	* must display the following acknowledgement:
	* "This product includes cryptographic software written by
	* Eric Young (eay@cryptsoft.com)"
	* The word 'cryptographic' can be left out if the rouines from the library
	* being used are not cryptographic related :-).
	* 4. If you include any Windows specific code (or a derivative thereof) from
	* the apps directory (application code) you must include an acknowledgement:
	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	*
	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*
	* The licence and distribution terms for any publically available version or
	* derivative of this code cannot be changed. i.e. this code cannot simply be
	* copied and put under another distribution licence
	* [including the GNU Public Licence.]
	*/

	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include "cryptlib.h"
	#include <openssl/buffer.h>
	#include <openssl/txt_db.h>

	#undef BUFSIZE
	#define BUFSIZE 512

	const char TXT_DB_version[]="TXT_DB" OPENSSL_VERSION_PTEXT;

	TXT_DB TXT_DB_read(BIO in, int num)
	{
	TXT_DB *ret=NULL;
	int er=1;
	int esc=0;
	long ln=0;
	int i,add,n;
	int size=BUFSIZE;
	int offset=0;
	char p,f;
	OPENSSL_STRING *pp;
	BUF_MEM *buf=NULL;

	if ((buf=BUF_MEM_new()) == NULL) goto err;
	if (!BUF_MEM_grow(buf,size)) goto err;

	if ((ret=OPENSSL_malloc(sizeof(TXT_DB))) == NULL)
	goto err;
	ret->num_fields=num;
	ret->index=NULL;
	ret->qual=NULL;
	if ((ret->data=sk_OPENSSL_PSTRING_new_null()) == NULL)
	goto err;
	if ((ret->index=OPENSSL_malloc(sizeof(ret->index)num)) == NULL)
	goto err;
	if ((ret->qual=OPENSSL_malloc(sizeof((ret->qual))num)) == NULL)
	goto err;
	for (i=0; i<num; i++)
	{
	ret->index[i]=NULL;
	ret->qual[i]=NULL;
	}

	add=(num+1)sizeof(char );
	buf->data[size-1]='\0';
	offset=0;
	for (;;)
	{
	if (offset != 0)
	{
	size+=BUFSIZE;
	if (!BUF_MEM_grow_clean(buf,size)) goto err;
	}
	buf->data[offset]='\0';
	BIO_gets(in,&(buf->data[offset]),size-offset);
	ln++;
	if (buf->data[offset] == '\0') break;
	if ((offset == 0) && (buf->data[0] == '#')) continue;
	i=strlen(&(buf->data[offset]));
	offset+=i;
	if (buf->data[offset-1] != '\n')
	continue;
	else
	{
	buf->data[offset-1]='\0'; /* blat the '\n' */
	if (!(p=OPENSSL_malloc(add+offset))) goto err;
	offset=0;
	}
	pp=(char **)p;
	p+=add;
	n=0;
	pp[n++]=p;
	i=0;
	f=buf->data;

	esc=0;
	for (;;)
	{
	if (*f == '\0') break;
	if (*f == '\t')
	{
	if (esc)
	p--;
	else
	{
	*(p++)='\0';
	f++;
	if (n >= num) break;
	pp[n++]=p;
	continue;
	}
	}
	esc=(*f == '\\');
	(p++)= (f++);
	}
	*(p++)='\0';
	if ((n != num) \|\| (*f != '\0'))
	{
	#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporary fix :-( */
	fprintf(stderr,"wrong number of fields on line %ld (looking for field %d, got %d, '%s' left)\n",ln,num,n,f);
	#endif
	er=2;
	goto err;
	}
	pp[n]=p;
	if (!sk_OPENSSL_PSTRING_push(ret->data,pp))
	{
	#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporary fix :-( */
	fprintf(stderr,"failure in sk_push\n");
	#endif
	er=2;
	goto err;
	}
	}
	er=0;
	err:
	BUF_MEM_free(buf);
	if (er)
	{
	#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
	if (er == 1) fprintf(stderr,"OPENSSL_malloc failure\n");
	#endif
	if (ret != NULL)
	{
	if (ret->data != NULL) sk_OPENSSL_PSTRING_free(ret->data);
	if (ret->index != NULL) OPENSSL_free(ret->index);
	if (ret->qual != NULL) OPENSSL_free(ret->qual);
	if (ret != NULL) OPENSSL_free(ret);
	}
	return(NULL);
	}
	else
	return(ret);
	}

	OPENSSL_STRING TXT_DB_get_by_index(TXT_DB db, int idx, OPENSSL_STRING *value)
	{
	OPENSSL_STRING *ret;
	LHASH_OF(OPENSSL_STRING) *lh;

	if (idx >= db->num_fields)
	{
	db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
	return(NULL);
	}
	lh=db->index[idx];
	if (lh == NULL)
	{
	db->error=DB_ERROR_NO_INDEX;
	return(NULL);
	}
	ret=lh_OPENSSL_STRING_retrieve(lh,value);
	db->error=DB_ERROR_OK;
	return(ret);
	}

	int TXT_DB_create_index(TXT_DB db, int field, int (qual)(OPENSSL_STRING *),
	LHASH_HASH_FN_TYPE hash, LHASH_COMP_FN_TYPE cmp)
	{
	LHASH_OF(OPENSSL_STRING) *idx;
	OPENSSL_STRING *r;
	int i,n;

	if (field >= db->num_fields)
	{
	db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
	return(0);
	}
	/* FIXME: we lose type checking at this point */
	if ((idx=(LHASH_OF(OPENSSL_STRING) *)lh_new(hash,cmp)) == NULL)
	{
	db->error=DB_ERROR_MALLOC;
	return(0);
	}
	n=sk_OPENSSL_PSTRING_num(db->data);
	for (i=0; i<n; i++)
	{
	r=sk_OPENSSL_PSTRING_value(db->data,i);
	if ((qual != NULL) && (qual(r) == 0)) continue;
	if ((r=lh_OPENSSL_STRING_insert(idx,r)) != NULL)
	{
	db->error=DB_ERROR_INDEX_CLASH;
	db->arg1=sk_OPENSSL_PSTRING_find(db->data,r);
	db->arg2=i;
	lh_OPENSSL_STRING_free(idx);
	return(0);
	}
	}
	if (db->index[field] != NULL) lh_OPENSSL_STRING_free(db->index[field]);
	db->index[field]=idx;
	db->qual[field]=qual;
	return(1);
	}

	long TXT_DB_write(BIO out, TXT_DB db)
	{
	long i,j,n,nn,l,tot=0;
	char p,pp,f;
	BUF_MEM *buf=NULL;
	long ret= -1;

	if ((buf=BUF_MEM_new()) == NULL)
	goto err;
	n=sk_OPENSSL_PSTRING_num(db->data);
	nn=db->num_fields;
	for (i=0; i<n; i++)
	{
	pp=sk_OPENSSL_PSTRING_value(db->data,i);

	l=0;
	for (j=0; j<nn; j++)
	{
	if (pp[j] != NULL)
	l+=strlen(pp[j]);
	}
	if (!BUF_MEM_grow_clean(buf,(int)(l*2+nn))) goto err;

	p=buf->data;
	for (j=0; j<nn; j++)
	{
	f=pp[j];
	if (f != NULL)
	for (;;)
	{
	if (*f == '\0') break;
	if (f == '\t') (p++)='\\';
	(p++)= (f++);
	}
	*(p++)='\t';
	}
	p[-1]='\n';
	j=p-buf->data;
	if (BIO_write(out,buf->data,(int)j) != j)
	goto err;
	tot+=j;
	}
	ret=tot;
	err:
	if (buf != NULL) BUF_MEM_free(buf);
	return(ret);
	}

	int TXT_DB_insert(TXT_DB db, OPENSSL_STRING row)
	{
	int i;
	OPENSSL_STRING *r;

	for (i=0; i<db->num_fields; i++)
	{
	if (db->index[i] != NULL)
	{
	if ((db->qual[i] != NULL) &&
	(db->qual[i](row) == 0)) continue;
	r=lh_OPENSSL_STRING_retrieve(db->index[i],row);
	if (r != NULL)
	{
	db->error=DB_ERROR_INDEX_CLASH;
	db->arg1=i;
	db->arg_row=r;
	goto err;
	}
	}
	}
	/* We have passed the index checks, now just append and insert */
	if (!sk_OPENSSL_PSTRING_push(db->data,row))
	{
	db->error=DB_ERROR_MALLOC;
	goto err;
	}

	for (i=0; i<db->num_fields; i++)
	{
	if (db->index[i] != NULL)
	{
	if ((db->qual[i] != NULL) &&
	(db->qual[i](row) == 0)) continue;
	(void)lh_OPENSSL_STRING_insert(db->index[i],row);
	}
	}
	return(1);
	err:
	return(0);
	}

	void TXT_DB_free(TXT_DB *db)
	{
	int i,n;
	char *p,max;

	if(db == NULL)
	return;

	if (db->index != NULL)
	{
	for (i=db->num_fields-1; i>=0; i--)
	if (db->index[i] != NULL) lh_OPENSSL_STRING_free(db->index[i]);
	OPENSSL_free(db->index);
	}
	if (db->qual != NULL)
	OPENSSL_free(db->qual);
	if (db->data != NULL)
	{
	for (i=sk_OPENSSL_PSTRING_num(db->data)-1; i>=0; i--)
	{
	/* check if any 'fields' have been allocated
	* from outside of the initial block */
	p=sk_OPENSSL_PSTRING_value(db->data,i);
	max=p[db->num_fields]; /* last address */
	if (max == NULL) /* new row */
	{
	for (n=0; n<db->num_fields; n++)
	if (p[n] != NULL) OPENSSL_free(p[n]);
	}
	else
	{
	for (n=0; n<db->num_fields; n++)
	{
	if (((p[n] < (char *)p) \|\| (p[n] > max))
	&& (p[n] != NULL))
	OPENSSL_free(p[n]);
	}
	}
	OPENSSL_free(sk_OPENSSL_PSTRING_value(db->data,i));
	}
	sk_OPENSSL_PSTRING_free(db->data);
	}
	OPENSSL_free(db);
	}