1 /* Copyright (c) 2016, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15
16 #include <openssl/bytestring.h>
17
18 #include <assert.h>
19 #include <limits.h>
20 #include <string.h>
21
22 #include <openssl/mem.h>
23
24 #include "internal.h"
25 #include "../internal.h"
26
27
CBB_finish_i2d(CBB * cbb,uint8_t ** outp)28 int CBB_finish_i2d(CBB *cbb, uint8_t **outp) {
29 assert(cbb->base->can_resize);
30
31 uint8_t *der;
32 size_t der_len;
33 if (!CBB_finish(cbb, &der, &der_len)) {
34 CBB_cleanup(cbb);
35 return -1;
36 }
37 if (der_len > INT_MAX) {
38 OPENSSL_free(der);
39 return -1;
40 }
41 if (outp != NULL) {
42 if (*outp == NULL) {
43 *outp = der;
44 der = NULL;
45 } else {
46 OPENSSL_memcpy(*outp, der, der_len);
47 *outp += der_len;
48 }
49 }
50 OPENSSL_free(der);
51 return (int)der_len;
52 }
53