lib/libcrypto/dsa/dsa_meth.c

   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 }