383 lines
9.3 KiB
C
383 lines
9.3 KiB
C
/* 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,**pp,*f;
|
|
BUF_MEM *buf=NULL;
|
|
|
|
if ((buf=BUF_MEM_new()) == NULL) goto err;
|
|
if (!BUF_MEM_grow(buf,size)) goto err;
|
|
|
|
if ((ret=(TXT_DB *)OPENSSL_malloc(sizeof(TXT_DB))) == NULL)
|
|
goto err;
|
|
ret->num_fields=num;
|
|
ret->index=NULL;
|
|
ret->qual=NULL;
|
|
if ((ret->data=sk_new_null()) == NULL)
|
|
goto err;
|
|
if ((ret->index=(LHASH **)OPENSSL_malloc(sizeof(LHASH *)*num)) == NULL)
|
|
goto err;
|
|
if ((ret->qual=(int (**)())OPENSSL_malloc(sizeof(int (**)())*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(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=(char *)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) /* temporaty 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_push(ret->data,(char *)pp))
|
|
{
|
|
#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporaty 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->data != NULL) sk_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);
|
|
}
|
|
|
|
char **TXT_DB_get_by_index(TXT_DB *db, int idx, char **value)
|
|
{
|
|
char **ret;
|
|
LHASH *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=(char **)lh_retrieve(lh,value);
|
|
db->error=DB_ERROR_OK;
|
|
return(ret);
|
|
}
|
|
|
|
int TXT_DB_create_index(TXT_DB *db, int field, int (*qual)(),
|
|
LHASH_HASH_FN_TYPE hash, LHASH_COMP_FN_TYPE cmp)
|
|
{
|
|
LHASH *idx;
|
|
char *r;
|
|
int i,n;
|
|
|
|
if (field >= db->num_fields)
|
|
{
|
|
db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
|
|
return(0);
|
|
}
|
|
if ((idx=lh_new(hash,cmp)) == NULL)
|
|
{
|
|
db->error=DB_ERROR_MALLOC;
|
|
return(0);
|
|
}
|
|
n=sk_num(db->data);
|
|
for (i=0; i<n; i++)
|
|
{
|
|
r=(char *)sk_value(db->data,i);
|
|
if ((qual != NULL) && (qual(r) == 0)) continue;
|
|
if ((r=lh_insert(idx,r)) != NULL)
|
|
{
|
|
db->error=DB_ERROR_INDEX_CLASH;
|
|
db->arg1=sk_find(db->data,r);
|
|
db->arg2=i;
|
|
lh_free(idx);
|
|
return(0);
|
|
}
|
|
}
|
|
if (db->index[field] != NULL) lh_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_num(db->data);
|
|
nn=db->num_fields;
|
|
for (i=0; i<n; i++)
|
|
{
|
|
pp=(char **)sk_value(db->data,i);
|
|
|
|
l=0;
|
|
for (j=0; j<nn; j++)
|
|
{
|
|
if (pp[j] != NULL)
|
|
l+=strlen(pp[j]);
|
|
}
|
|
if (!BUF_MEM_grow(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, char **row)
|
|
{
|
|
int i;
|
|
char **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=(char **)lh_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_push(db->data,(char *)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;
|
|
lh_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_free(db->index[i]);
|
|
OPENSSL_free(db->index);
|
|
}
|
|
if (db->qual != NULL)
|
|
OPENSSL_free(db->qual);
|
|
if (db->data != NULL)
|
|
{
|
|
for (i=sk_num(db->data)-1; i>=0; i--)
|
|
{
|
|
/* check if any 'fields' have been allocated
|
|
* from outside of the initial block */
|
|
p=(char **)sk_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_value(db->data,i));
|
|
}
|
|
sk_free(db->data);
|
|
}
|
|
OPENSSL_free(db);
|
|
}
|