2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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)
31 if ((buf = BUF_MEM_new()) == NULL)
33 if (!BUF_MEM_grow(buf, size))
36 if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL)
38 ret->num_fields = num;
41 if ((ret->data = sk_OPENSSL_PSTRING_new_null()) == NULL)
43 if ((ret->index = OPENSSL_malloc(sizeof(*ret->index) * num)) == NULL)
45 if ((ret->qual = OPENSSL_malloc(sizeof(*(ret->qual)) * num)) == NULL)
47 for (i = 0; i < num; i++) {
52 add = (num + 1) * sizeof(char *);
53 buf->data[size - 1] = '\0';
58 if (!BUF_MEM_grow_clean(buf, size))
61 buf->data[offset] = '\0';
62 BIO_gets(in, &(buf->data[offset]), size - offset);
63 if (buf->data[offset] == '\0')
65 if ((offset == 0) && (buf->data[0] == '#'))
67 i = strlen(&(buf->data[offset]));
69 if (buf->data[offset - 1] != '\n')
72 buf->data[offset - 1] = '\0'; /* blat the '\n' */
73 if ((p = OPENSSL_malloc(add + offset)) == NULL)
103 if ((n != num) || (*f != '\0')) {
105 ret->error = DB_ERROR_WRONG_NUM_FIELDS;
109 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;
151 OPENSSL_STRING *r, *k;
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 ((k = lh_OPENSSL_STRING_insert(idx, r)) != NULL) {
169 db->error = DB_ERROR_INDEX_CLASH;
170 db->arg1 = sk_OPENSSL_PSTRING_find(db->data, k);
172 lh_OPENSSL_STRING_free(idx);
175 if (lh_OPENSSL_STRING_retrieve(idx, r) == NULL) {
176 db->error = DB_ERROR_MALLOC;
177 lh_OPENSSL_STRING_free(idx);
181 lh_OPENSSL_STRING_free(db->index[field]);
182 db->index[field] = idx;
183 db->qual[field] = qual;
187 long TXT_DB_write(BIO *out, TXT_DB *db)
189 long i, j, n, nn, l, tot = 0;
194 if ((buf = BUF_MEM_new()) == NULL)
196 n = sk_OPENSSL_PSTRING_num(db->data);
198 for (i = 0; i < n; i++) {
199 pp = sk_OPENSSL_PSTRING_value(db->data, i);
202 for (j = 0; j < nn; j++) {
206 if (!BUF_MEM_grow_clean(buf, (int)(l * 2 + nn)))
210 for (j = 0; j < nn; j++) {
224 if (BIO_write(out, buf->data, (int)j) != j)
234 int TXT_DB_insert(TXT_DB *db, OPENSSL_STRING *row)
239 for (i = 0; i < db->num_fields; i++) {
240 if (db->index[i] != NULL) {
241 if ((db->qual[i] != NULL) && (db->qual[i] (row) == 0))
243 r = lh_OPENSSL_STRING_retrieve(db->index[i], row);
245 db->error = DB_ERROR_INDEX_CLASH;
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);
258 if (lh_OPENSSL_STRING_retrieve(db->index[i], row) == NULL)
262 if (!sk_OPENSSL_PSTRING_push(db->data, row))
267 db->error = DB_ERROR_MALLOC;
269 if (db->index[i] != NULL) {
270 if ((db->qual[i] != NULL) && (db->qual[i] (row) == 0))
272 (void)lh_OPENSSL_STRING_delete(db->index[i], row);
279 void TXT_DB_free(TXT_DB *db)
286 if (db->index != NULL) {
287 for (i = db->num_fields - 1; i >= 0; i--)
288 lh_OPENSSL_STRING_free(db->index[i]);
289 OPENSSL_free(db->index);
291 OPENSSL_free(db->qual);
292 if (db->data != NULL) {
293 for (i = sk_OPENSSL_PSTRING_num(db->data) - 1; i >= 0; i--) {
295 * check if any 'fields' have been allocated from outside of the
298 p = sk_OPENSSL_PSTRING_value(db->data, i);
299 max = p[db->num_fields]; /* last address */
300 if (max == NULL) { /* new row */
301 for (n = 0; n < db->num_fields; n++)
304 for (n = 0; n < db->num_fields; n++) {
305 if (((p[n] < (char *)p) || (p[n] > max)))
309 OPENSSL_free(sk_OPENSSL_PSTRING_value(db->data, i));
311 sk_OPENSSL_PSTRING_free(db->data);