1 /* crypto/txt_db/txt_db.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
63 #include <openssl/buffer.h>
64 #include <openssl/txt_db.h>
69 const char *TXT_DB_version="TXT_DB" OPENSSL_VERSION_PTEXT;
71 TXT_DB *TXT_DB_read(BIO *in, int num)
83 if ((buf=BUF_MEM_new()) == NULL) goto err;
84 if (!BUF_MEM_grow(buf,size)) goto err;
86 if ((ret=(TXT_DB *)OPENSSL_malloc(sizeof(TXT_DB))) == NULL)
91 if ((ret->data=sk_new_null()) == NULL)
93 if ((ret->index=(LHASH **)OPENSSL_malloc(sizeof(LHASH *)*num)) == NULL)
95 if ((ret->qual=(int (**)())OPENSSL_malloc(sizeof(int (**)())*num)) == NULL)
103 add=(num+1)*sizeof(char *);
104 buf->data[size-1]='\0';
111 if (!BUF_MEM_grow(buf,size)) goto err;
113 buf->data[offset]='\0';
114 BIO_gets(in,&(buf->data[offset]),size-offset);
116 if (buf->data[offset] == '\0') break;
117 if ((offset == 0) && (buf->data[0] == '#')) continue;
118 i=strlen(&(buf->data[offset]));
120 if (buf->data[offset-1] != '\n')
124 buf->data[offset-1]='\0'; /* blat the '\n' */
125 p=(char *)OPENSSL_malloc(add+offset);
138 if (*f == '\0') break;
156 if ((n != num) || (*f != '\0'))
158 #if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporaty fix :-( */
159 fprintf(stderr,"wrong number of fields on line %ld (looking for field %d, got %d, '%s' left)\n",ln,num,n,f);
165 if (!sk_push(ret->data,(char *)pp))
167 #if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporaty fix :-( */
168 fprintf(stderr,"failure in sk_push\n");
179 #if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
180 if (er == 1) fprintf(stderr,"OPENSSL_malloc failure\n");
182 if (ret->data != NULL) sk_free(ret->data);
183 if (ret->index != NULL) OPENSSL_free(ret->index);
184 if (ret->qual != NULL) OPENSSL_free(ret->qual);
185 if (ret != NULL) OPENSSL_free(ret);
192 char **TXT_DB_get_by_index(TXT_DB *db, int idx, char **value)
197 if (idx >= db->num_fields)
199 db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
205 db->error=DB_ERROR_NO_INDEX;
208 ret=(char **)lh_retrieve(lh,value);
209 db->error=DB_ERROR_OK;
213 int TXT_DB_create_index(TXT_DB *db, int field, int (*qual)(),
214 LHASH_HASH_FN_TYPE hash, LHASH_COMP_FN_TYPE cmp)
220 if (field >= db->num_fields)
222 db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
225 if ((idx=lh_new(hash,cmp)) == NULL)
227 db->error=DB_ERROR_MALLOC;
233 r=(char *)sk_value(db->data,i);
234 if ((qual != NULL) && (qual(r) == 0)) continue;
235 if ((r=lh_insert(idx,r)) != NULL)
237 db->error=DB_ERROR_INDEX_CLASH;
238 db->arg1=sk_find(db->data,r);
244 if (db->index[field] != NULL) lh_free(db->index[field]);
245 db->index[field]=idx;
246 db->qual[field]=qual;
250 long TXT_DB_write(BIO *out, TXT_DB *db)
252 long i,j,n,nn,l,tot=0;
257 if ((buf=BUF_MEM_new()) == NULL)
263 pp=(char **)sk_value(db->data,i);
271 if (!BUF_MEM_grow(buf,(int)(l*2+nn))) goto err;
280 if (*f == '\0') break;
281 if (*f == '\t') *(p++)='\\';
288 if (BIO_write(out,buf->data,(int)j) != j)
294 if (buf != NULL) BUF_MEM_free(buf);
298 int TXT_DB_insert(TXT_DB *db, char **row)
303 for (i=0; i<db->num_fields; i++)
305 if (db->index[i] != NULL)
307 if ((db->qual[i] != NULL) &&
308 (db->qual[i](row) == 0)) continue;
309 r=(char **)lh_retrieve(db->index[i],row);
312 db->error=DB_ERROR_INDEX_CLASH;
319 /* We have passed the index checks, now just append and insert */
320 if (!sk_push(db->data,(char *)row))
322 db->error=DB_ERROR_MALLOC;
326 for (i=0; i<db->num_fields; i++)
328 if (db->index[i] != NULL)
330 if ((db->qual[i] != NULL) &&
331 (db->qual[i](row) == 0)) continue;
332 lh_insert(db->index[i],row);
340 void TXT_DB_free(TXT_DB *db)
348 if (db->index != NULL)
350 for (i=db->num_fields-1; i>=0; i--)
351 if (db->index[i] != NULL) lh_free(db->index[i]);
352 OPENSSL_free(db->index);
354 if (db->qual != NULL)
355 OPENSSL_free(db->qual);
356 if (db->data != NULL)
358 for (i=sk_num(db->data)-1; i>=0; i--)
360 /* check if any 'fields' have been allocated
361 * from outside of the initial block */
362 p=(char **)sk_value(db->data,i);
363 max=p[db->num_fields]; /* last address */
364 if (max == NULL) /* new row */
366 for (n=0; n<db->num_fields; n++)
367 if (p[n] != NULL) OPENSSL_free(p[n]);
371 for (n=0; n<db->num_fields; n++)
373 if (((p[n] < (char *)p) || (p[n] > max))
378 OPENSSL_free(sk_value(db->data,i));