Added ALPN support (client and server).
[BearSSL] / tools / xmem.c
1 /*
2 * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 #include "brssl.h"
26
27 /* see brssl.h */
28 void *
29 xmalloc(size_t len)
30 {
31 void *buf;
32
33 if (len == 0) {
34 return NULL;
35 }
36 buf = malloc(len);
37 if (buf == NULL) {
38 fprintf(stderr, "ERROR: could not allocate %lu byte(s)\n",
39 (unsigned long)len);
40 exit(EXIT_FAILURE);
41 }
42 return buf;
43 }
44
45 /* see brssl.h */
46 void
47 xfree(void *buf)
48 {
49 if (buf != NULL) {
50 free(buf);
51 }
52 }
53
54 /* see brssl.h */
55 void *
56 xblobdup(const void *src, size_t len)
57 {
58 void *buf;
59
60 buf = xmalloc(len);
61 memcpy(buf, src, len);
62 return buf;
63 }
64
65 /* see brssl.h */
66 char *
67 xstrdup(const void *src)
68 {
69 return xblobdup(src, strlen(src) + 1);
70 }
71
72 /* see brssl.h */
73 br_x509_pkey *
74 xpkeydup(const br_x509_pkey *pk)
75 {
76 br_x509_pkey *pk2;
77
78 pk2 = xmalloc(sizeof *pk2);
79 pk2->key_type = pk->key_type;
80 switch (pk->key_type) {
81 case BR_KEYTYPE_RSA:
82 pk2->key.rsa.n = xblobdup(pk->key.rsa.n, pk->key.rsa.nlen);
83 pk2->key.rsa.nlen = pk->key.rsa.nlen;
84 pk2->key.rsa.e = xblobdup(pk->key.rsa.e, pk->key.rsa.elen);
85 pk2->key.rsa.elen = pk->key.rsa.elen;
86 break;
87 case BR_KEYTYPE_EC:
88 pk2->key.ec.curve = pk->key.ec.curve;
89 pk2->key.ec.q = xblobdup(pk->key.ec.q, pk->key.ec.qlen);
90 pk2->key.ec.qlen = pk->key.ec.qlen;
91 break;
92 default:
93 fprintf(stderr, "Unknown public key type: %u\n",
94 (unsigned)pk->key_type);
95 exit(EXIT_FAILURE);
96 }
97 return pk2;
98 }
99
100 /* see brssl.h */
101 void
102 xfreepkey(br_x509_pkey *pk)
103 {
104 if (pk != NULL) {
105 switch (pk->key_type) {
106 case BR_KEYTYPE_RSA:
107 xfree(pk->key.rsa.n);
108 xfree(pk->key.rsa.e);
109 break;
110 case BR_KEYTYPE_EC:
111 xfree(pk->key.ec.q);
112 break;
113 default:
114 fprintf(stderr, "Unknown public key type: %u\n",
115 (unsigned)pk->key_type);
116 exit(EXIT_FAILURE);
117 }
118 xfree(pk);
119 }
120 }