crypto/bio/bio_meth.c

   1 /*
   2  * Copyright 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 "bio_lcl.h"
  11
  12 CRYPTO_RWLOCK *bio_type_lock;
  13 static int bio_count = BIO_TYPE_START;
  14
  15 int BIO_get_new_index()
  16 {
  17     int newval;
  18
  19     if (!CRYPTO_atomic_add(&bio_count, 1, &newval, bio_type_lock))
  20         return -1;
  21     return newval;
  22 }
  23
  24 BIO_METHOD *BIO_meth_new(int type, const char *name)
  25 {
  26     BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));
  27
  28     if (biom != NULL) {
  29         biom->type = type;
  30         biom->name = name;
  31     }
  32     return biom;
  33 }
  34
  35 void BIO_meth_free(BIO_METHOD *biom)
  36 {
  37     OPENSSL_free(biom);
  38 }
  39
  40 int (*BIO_meth_get_write(BIO_METHOD *biom)) (BIO *, const char *, int)
  41 {
  42     return biom->bwrite;
  43 }
  44
  45 int BIO_meth_set_write(BIO_METHOD *biom,
  46                        int (*bwrite) (BIO *, const char *, int))
  47 {
  48     biom->bwrite = bwrite;
  49     return 1;
  50 }
  51
  52 int (*BIO_meth_get_read(BIO_METHOD *biom)) (BIO *, char *, int)
  53 {
  54     return biom->bread;
  55 }
  56
  57 int BIO_meth_set_read(BIO_METHOD *biom,
  58                       int (*bread) (BIO *, char *, int))
  59 {
  60     biom->bread = bread;
  61     return 1;
  62 }
  63
  64 int (*BIO_meth_get_puts(BIO_METHOD *biom)) (BIO *, const char *)
  65 {
  66     return biom->bputs;
  67 }
  68
  69 int BIO_meth_set_puts(BIO_METHOD *biom,
  70                       int (*bputs) (BIO *, const char *))
  71 {
  72     biom->bputs = bputs;
  73     return 1;
  74 }
  75
  76 int (*BIO_meth_get_gets(BIO_METHOD *biom)) (BIO *, char *, int)
  77 {
  78     return biom->bgets;
  79 }
  80
  81 int BIO_meth_set_gets(BIO_METHOD *biom,
  82                       int (*bgets) (BIO *, char *, int))
  83 {
  84     biom->bgets = bgets;
  85     return 1;
  86 }
  87
  88 long (*BIO_meth_get_ctrl(BIO_METHOD *biom)) (BIO *, int, long, void *)
  89 {
  90     return biom->ctrl;
  91 }
  92
  93 int BIO_meth_set_ctrl(BIO_METHOD *biom,
  94                       long (*ctrl) (BIO *, int, long, void *))
  95 {
  96     biom->ctrl = ctrl;
  97     return 1;
  98 }
  99
 100 int (*BIO_meth_get_create(BIO_METHOD *biom)) (BIO *)
 101 {
 102     return biom->create;
 103 }
 104
 105 int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *))
 106 {
 107     biom->create = create;
 108     return 1;
 109 }
 110
 111 int (*BIO_meth_get_destroy(BIO_METHOD *biom)) (BIO *)
 112 {
 113     return biom->destroy;
 114 }
 115
 116 int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *))
 117 {
 118     biom->destroy = destroy;
 119     return 1;
 120 }
 121
 122 long (*BIO_meth_get_callback_ctrl(BIO_METHOD *biom)) (BIO *, int, bio_info_cb *)
 123 {
 124     return biom->callback_ctrl;
 125 }
 126
 127 int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
 128                                long (*callback_ctrl) (BIO *, int,
 129                                                       bio_info_cb *))
 130 {
 131     biom->callback_ctrl = callback_ctrl;
 132     return 1;
 133 }