source: EcnlProtoTool/trunk/openssl-1.1.0e/crypto/txt_db/txt_db.c@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 8.0 KB
Line 
1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10#include <stdio.h>
11#include <stdlib.h>
12#include <string.h>
13#include "internal/cryptlib.h"
14#include <openssl/buffer.h>
15#include <openssl/txt_db.h>
16
17#undef BUFSIZE
18#define BUFSIZE 512
19
20TXT_DB *TXT_DB_read(BIO *in, int num)
21{
22 TXT_DB *ret = NULL;
23 int esc = 0;
24 long ln = 0;
25 int i, add, n;
26 int size = BUFSIZE;
27 int offset = 0;
28 char *p, *f;
29 OPENSSL_STRING *pp;
30 BUF_MEM *buf = NULL;
31
32 if ((buf = BUF_MEM_new()) == NULL)
33 goto err;
34 if (!BUF_MEM_grow(buf, size))
35 goto err;
36
37 if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL)
38 goto err;
39 ret->num_fields = num;
40 ret->index = NULL;
41 ret->qual = NULL;
42 if ((ret->data = sk_OPENSSL_PSTRING_new_null()) == NULL)
43 goto err;
44 if ((ret->index = OPENSSL_malloc(sizeof(*ret->index) * num)) == NULL)
45 goto err;
46 if ((ret->qual = OPENSSL_malloc(sizeof(*(ret->qual)) * num)) == NULL)
47 goto err;
48 for (i = 0; i < num; i++) {
49 ret->index[i] = NULL;
50 ret->qual[i] = NULL;
51 }
52
53 add = (num + 1) * sizeof(char *);
54 buf->data[size - 1] = '\0';
55 offset = 0;
56 for (;;) {
57 if (offset != 0) {
58 size += BUFSIZE;
59 if (!BUF_MEM_grow_clean(buf, size))
60 goto err;
61 }
62 buf->data[offset] = '\0';
63 BIO_gets(in, &(buf->data[offset]), size - offset);
64 ln++;
65 if (buf->data[offset] == '\0')
66 break;
67 if ((offset == 0) && (buf->data[0] == '#'))
68 continue;
69 i = strlen(&(buf->data[offset]));
70 offset += i;
71 if (buf->data[offset - 1] != '\n')
72 continue;
73 else {
74 buf->data[offset - 1] = '\0'; /* blat the '\n' */
75 if ((p = OPENSSL_malloc(add + offset)) == NULL)
76 goto err;
77 offset = 0;
78 }
79 pp = (char **)p;
80 p += add;
81 n = 0;
82 pp[n++] = p;
83 i = 0;
84 f = buf->data;
85
86 esc = 0;
87 for (;;) {
88 if (*f == '\0')
89 break;
90 if (*f == '\t') {
91 if (esc)
92 p--;
93 else {
94 *(p++) = '\0';
95 f++;
96 if (n >= num)
97 break;
98 pp[n++] = p;
99 continue;
100 }
101 }
102 esc = (*f == '\\');
103 *(p++) = *(f++);
104 }
105 *(p++) = '\0';
106 if ((n != num) || (*f != '\0')) {
107 ret->error = DB_ERROR_WRONG_NUM_FIELDS;
108 goto err;
109 }
110 pp[n] = p;
111 if (!sk_OPENSSL_PSTRING_push(ret->data, pp))
112 goto err;
113 }
114 BUF_MEM_free(buf);
115 return ret;
116 err:
117 BUF_MEM_free(buf);
118 if (ret != NULL) {
119 sk_OPENSSL_PSTRING_free(ret->data);
120 OPENSSL_free(ret->index);
121 OPENSSL_free(ret->qual);
122 OPENSSL_free(ret);
123 }
124 return (NULL);
125}
126
127OPENSSL_STRING *TXT_DB_get_by_index(TXT_DB *db, int idx,
128 OPENSSL_STRING *value)
129{
130 OPENSSL_STRING *ret;
131 LHASH_OF(OPENSSL_STRING) *lh;
132
133 if (idx >= db->num_fields) {
134 db->error = DB_ERROR_INDEX_OUT_OF_RANGE;
135 return (NULL);
136 }
137 lh = db->index[idx];
138 if (lh == NULL) {
139 db->error = DB_ERROR_NO_INDEX;
140 return (NULL);
141 }
142 ret = lh_OPENSSL_STRING_retrieve(lh, value);
143 db->error = DB_ERROR_OK;
144 return (ret);
145}
146
147int TXT_DB_create_index(TXT_DB *db, int field, int (*qual) (OPENSSL_STRING *),
148 OPENSSL_LH_HASHFUNC hash, OPENSSL_LH_COMPFUNC cmp)
149{
150 LHASH_OF(OPENSSL_STRING) *idx;
151 OPENSSL_STRING *r;
152 int i, n;
153
154 if (field >= db->num_fields) {
155 db->error = DB_ERROR_INDEX_OUT_OF_RANGE;
156 return (0);
157 }
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;
161 return (0);
162 }
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))
167 continue;
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);
171 db->arg2 = i;
172 lh_OPENSSL_STRING_free(idx);
173 return (0);
174 }
175 }
176 lh_OPENSSL_STRING_free(db->index[field]);
177 db->index[field] = idx;
178 db->qual[field] = qual;
179 return (1);
180}
181
182long TXT_DB_write(BIO *out, TXT_DB *db)
183{
184 long i, j, n, nn, l, tot = 0;
185 char *p, **pp, *f;
186 BUF_MEM *buf = NULL;
187 long ret = -1;
188
189 if ((buf = BUF_MEM_new()) == NULL)
190 goto err;
191 n = sk_OPENSSL_PSTRING_num(db->data);
192 nn = db->num_fields;
193 for (i = 0; i < n; i++) {
194 pp = sk_OPENSSL_PSTRING_value(db->data, i);
195
196 l = 0;
197 for (j = 0; j < nn; j++) {
198 if (pp[j] != NULL)
199 l += strlen(pp[j]);
200 }
201 if (!BUF_MEM_grow_clean(buf, (int)(l * 2 + nn)))
202 goto err;
203
204 p = buf->data;
205 for (j = 0; j < nn; j++) {
206 f = pp[j];
207 if (f != NULL)
208 for (;;) {
209 if (*f == '\0')
210 break;
211 if (*f == '\t')
212 *(p++) = '\\';
213 *(p++) = *(f++);
214 }
215 *(p++) = '\t';
216 }
217 p[-1] = '\n';
218 j = p - buf->data;
219 if (BIO_write(out, buf->data, (int)j) != j)
220 goto err;
221 tot += j;
222 }
223 ret = tot;
224 err:
225 BUF_MEM_free(buf);
226 return (ret);
227}
228
229int TXT_DB_insert(TXT_DB *db, OPENSSL_STRING *row)
230{
231 int i;
232 OPENSSL_STRING *r;
233
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))
237 continue;
238 r = lh_OPENSSL_STRING_retrieve(db->index[i], row);
239 if (r != NULL) {
240 db->error = DB_ERROR_INDEX_CLASH;
241 db->arg1 = i;
242 db->arg_row = r;
243 goto err;
244 }
245 }
246 }
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;
250 goto err;
251 }
252
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))
256 continue;
257 (void)lh_OPENSSL_STRING_insert(db->index[i], row);
258 }
259 }
260 return (1);
261 err:
262 return (0);
263}
264
265void TXT_DB_free(TXT_DB *db)
266{
267 int i, n;
268 char **p, *max;
269
270 if (db == NULL)
271 return;
272
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);
277 }
278 OPENSSL_free(db->qual);
279 if (db->data != NULL) {
280 for (i = sk_OPENSSL_PSTRING_num(db->data) - 1; i >= 0; i--) {
281 /*
282 * check if any 'fields' have been allocated from outside of the
283 * initial block
284 */
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++)
289 OPENSSL_free(p[n]);
290 } else {
291 for (n = 0; n < db->num_fields; n++) {
292 if (((p[n] < (char *)p) || (p[n] > max)))
293 OPENSSL_free(p[n]);
294 }
295 }
296 OPENSSL_free(sk_OPENSSL_PSTRING_value(db->data, i));
297 }
298 sk_OPENSSL_PSTRING_free(db->data);
299 }
300 OPENSSL_free(db);
301}
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