2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
13 #include "internal/cryptlib.h"
14 #include <openssl/buffer.h>
15 #include <openssl/txt_db.h>
20 TXT_DB *TXT_DB_read(BIO *in, int num)
32 if ((buf = BUF_MEM_new()) == NULL)
34 if (!BUF_MEM_grow(buf, size))
37 if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL)
39 ret->num_fields = num;
42 if ((ret->data = sk_OPENSSL_PSTRING_new_null()) == NULL)
44 if ((ret->index = OPENSSL_malloc(sizeof(*ret->index) * num)) == NULL)
46 if ((ret->qual = OPENSSL_malloc(sizeof(*(ret->qual)) * num)) == NULL)
48 for (i = 0; i < num; i++) {
53 add = (num + 1) * sizeof(char *);
54 buf->data[size - 1] = '\0';
59 if (!BUF_MEM_grow_clean(buf, size))
62 buf->data[offset] = '\0';
63 BIO_gets(in, &(buf->data[offset]), size - offset);
65 if (buf->data[offset] == '\0')
67 if ((offset == 0) && (buf->data[0] == '#'))
69 i = strlen(&(buf->data[offset]));
71 if (buf->data[offset - 1] != '\n')
74 buf->data[offset - 1] = '\0'; /* blat the '\n' */
75 if ((p = OPENSSL_malloc(add + offset)) == NULL)
106 if ((n != num) || (*f != '\0')) {
107 ret->error = DB_ERROR_WRONG_NUM_FIELDS;
111 if (!sk_OPENSSL_PSTRING_push(ret->data, pp))
119 sk_OPENSSL_PSTRING_free(ret->data);
120 OPENSSL_free(ret->index);
121 OPENSSL_free(ret->qual);
127 OPENSSL_STRING *TXT_DB_get_by_index(TXT_DB *db, int idx,
128 OPENSSL_STRING *value)
131 LHASH_OF(OPENSSL_STRING) *lh;
133 if (idx >= db->num_fields) {
134 db->error = DB_ERROR_INDEX_OUT_OF_RANGE;
139 db->error = DB_ERROR_NO_INDEX;
142 ret = lh_OPENSSL_STRING_retrieve(lh, value);
143 db->error = DB_ERROR_OK;
147 int TXT_DB_create_index(TXT_DB *db, int field, int (*qual) (OPENSSL_STRING *),
148 OPENSSL_LH_HASHFUNC hash, OPENSSL_LH_COMPFUNC cmp)
150 LHASH_OF(OPENSSL_STRING) *idx;
154 if (field >= db->num_fields) {
155 db->error = DB_ERROR_INDEX_OUT_OF_RANGE;
158 /* FIXME: we lose type checking at this point */
159 if ((idx = (LHASH_OF(OPENSSL_STRING) *)OPENSSL_LH_new(hash, cmp)) == NULL) {
160 db->error = DB_ERROR_MALLOC;
163 n = sk_OPENSSL_PSTRING_num(db->data);
164 for (i = 0; i < n; i++) {
165 r = sk_OPENSSL_PSTRING_value(db->data, i);
166 if ((qual != NULL) && (qual(r) == 0))
168 if ((r = lh_OPENSSL_STRING_insert(idx, r)) != NULL) {
169 db->error = DB_ERROR_INDEX_CLASH;
170 db->arg1 = sk_OPENSSL_PSTRING_find(db->data, r);
172 lh_OPENSSL_STRING_free(idx);
176 lh_OPENSSL_STRING_free(db->index[field]);
177 db->index[field] = idx;
178 db->qual[field] = qual;
182 long TXT_DB_write(BIO *out, TXT_DB *db)
184 long i, j, n, nn, l, tot = 0;
189 if ((buf = BUF_MEM_new()) == NULL)
191 n = sk_OPENSSL_PSTRING_num(db->data);
193 for (i = 0; i < n; i++) {
194 pp = sk_OPENSSL_PSTRING_value(db->data, i);
197 for (j = 0; j < nn; j++) {
201 if (!BUF_MEM_grow_clean(buf, (int)(l * 2 + nn)))
205 for (j = 0; j < nn; j++) {
219 if (BIO_write(out, buf->data, (int)j) != j)
229 int TXT_DB_insert(TXT_DB *db, OPENSSL_STRING *row)
234 for (i = 0; i < db->num_fields; i++) {
235 if (db->index[i] != NULL) {
236 if ((db->qual[i] != NULL) && (db->qual[i] (row) == 0))
238 r = lh_OPENSSL_STRING_retrieve(db->index[i], row);
240 db->error = DB_ERROR_INDEX_CLASH;
247 /* We have passed the index checks, now just append and insert */
248 if (!sk_OPENSSL_PSTRING_push(db->data, row)) {
249 db->error = DB_ERROR_MALLOC;
253 for (i = 0; i < db->num_fields; i++) {
254 if (db->index[i] != NULL) {
255 if ((db->qual[i] != NULL) && (db->qual[i] (row) == 0))
257 (void)lh_OPENSSL_STRING_insert(db->index[i], row);
265 void TXT_DB_free(TXT_DB *db)
273 if (db->index != NULL) {
274 for (i = db->num_fields - 1; i >= 0; i--)
275 lh_OPENSSL_STRING_free(db->index[i]);
276 OPENSSL_free(db->index);
278 OPENSSL_free(db->qual);
279 if (db->data != NULL) {
280 for (i = sk_OPENSSL_PSTRING_num(db->data) - 1; i >= 0; i--) {
282 * check if any 'fields' have been allocated from outside of the
285 p = sk_OPENSSL_PSTRING_value(db->data, i);
286 max = p[db->num_fields]; /* last address */
287 if (max == NULL) { /* new row */
288 for (n = 0; n < db->num_fields; n++)
291 for (n = 0; n < db->num_fields; n++) {
292 if (((p[n] < (char *)p) || (p[n] > max)))
296 OPENSSL_free(sk_OPENSSL_PSTRING_value(db->data, i));
298 sk_OPENSSL_PSTRING_free(db->data);