1 /*	$OpenBSD: dsa_meth.c,v 1.1 2018/03/17 15:19:12 tb Exp $	*/
2 /*
3  * Copyright (c) 2018 Theo Buehler <tb@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <stdlib.h>
19 #include <string.h>
20 
21 #include <openssl/dsa.h>
22 #include <openssl/err.h>
23 
24 DSA_METHOD *
25 DSA_meth_new(const char *name, int flags)
26 {
27 	DSA_METHOD *meth;
28 
29 	if ((meth = calloc(1, sizeof(*meth))) == NULL)
30 		return NULL;
31 	if ((meth->name = strdup(name)) == NULL) {
32 		free(meth);
33 		return NULL;
34 	}
35 	meth->flags = flags;
36 
37 	return meth;
38 }
39 
40 void
41 DSA_meth_free(DSA_METHOD *meth)
42 {
43 	if (meth != NULL) {
44 		free((char *)meth->name);
45 		free(meth);
46 	}
47 }
48 
49 DSA_METHOD *
50 DSA_meth_dup(const DSA_METHOD *meth)
51 {
52 	DSA_METHOD *copy;
53 
54 	if ((copy = calloc(1, sizeof(*copy))) == NULL)
55 		return NULL;
56 	memcpy(copy, meth, sizeof(*copy));
57 	if ((copy->name = strdup(meth->name)) == NULL) {
58 		free(copy);
59 		return NULL;
60 	}
61 
62 	return copy;
63 }
64 
65 int
66 DSA_meth_set_sign(DSA_METHOD *meth,
67     DSA_SIG *(*sign)(const unsigned char *, int, DSA *))
68 {
69 	meth->dsa_do_sign = sign;
70 	return 1;
71 }
72 
73 int
74 DSA_meth_set_finish(DSA_METHOD *meth, int (*finish)(DSA *))
75 {
76 	meth->finish = finish;
77 	return 1;
78 }
79