/src/openssl30/crypto/bio/bio_meth.c

Source (jump to first uncovered line)
/*
 * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include "bio_local.h"
#include "internal/thread_once.h"

CRYPTO_RWLOCK *bio_type_lock = NULL;
static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT;

DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
{
    bio_type_lock = CRYPTO_THREAD_lock_new();
    return bio_type_lock != NULL;
}

int BIO_get_new_index(void)
{
    static CRYPTO_REF_COUNT bio_count = BIO_TYPE_START;
    int newval;

    if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) {
        ERR_raise(ERR_LIB_BIO, ERR_R_MALLOC_FAILURE);
        return -1;
    }
    if (!CRYPTO_UP_REF(&bio_count, &newval, bio_type_lock))
        return -1;
    return newval;
}

BIO_METHOD *BIO_meth_new(int type, const char *name)
{
    BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));

    if (biom == NULL
            || (biom->name = OPENSSL_strdup(name)) == NULL) {
        OPENSSL_free(biom);
        ERR_raise(ERR_LIB_BIO, ERR_R_MALLOC_FAILURE);
        return NULL;
    }
    biom->type = type;
    return biom;
}

void BIO_meth_free(BIO_METHOD *biom)
{
    if (biom != NULL) {
        OPENSSL_free(biom->name);
        OPENSSL_free(biom);
    }
}

int (*BIO_meth_get_write(const BIO_METHOD *biom)) (BIO *, const char *, int)
{
    return biom->bwrite_old;
}

int (*BIO_meth_get_write_ex(const BIO_METHOD *biom)) (BIO *, const char *, size_t,
                                                size_t *)
{
    return biom->bwrite;
}

/* Conversion for old style bwrite to new style */
int bwrite_conv(BIO *bio, const char *data, size_t datal, size_t *written)
{
    int ret;

    if (datal > INT_MAX)
        datal = INT_MAX;

    ret = bio->method->bwrite_old(bio, data, (int)datal);

    if (ret <= 0) {
        *written = 0;
        return ret;
    }

    *written = (size_t)ret;

    return 1;
}

int BIO_meth_set_write(BIO_METHOD *biom,
                       int (*bwrite) (BIO *, const char *, int))
{
    biom->bwrite_old = bwrite;
    biom->bwrite = bwrite_conv;
    return 1;
}

int BIO_meth_set_write_ex(BIO_METHOD *biom,
                       int (*bwrite) (BIO *, const char *, size_t, size_t *))
{
    biom->bwrite_old = NULL;
    biom->bwrite = bwrite;
    return 1;
}

int (*BIO_meth_get_read(const BIO_METHOD *biom)) (BIO *, char *, int)
{
    return biom->bread_old;
}

int (*BIO_meth_get_read_ex(const BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *)
{
    return biom->bread;
}

/* Conversion for old style bread to new style */
int bread_conv(BIO *bio, char *data, size_t datal, size_t *readbytes)
{
    int ret;

    if (datal > INT_MAX)
        datal = INT_MAX;

    ret = bio->method->bread_old(bio, data, (int)datal);

    if (ret <= 0) {
        *readbytes = 0;
        return ret;
    }

    *readbytes = (size_t)ret;

    return 1;
}

int BIO_meth_set_read(BIO_METHOD *biom,
                      int (*bread) (BIO *, char *, int))
{
    biom->bread_old = bread;
    biom->bread = bread_conv;
    return 1;
}

int BIO_meth_set_read_ex(BIO_METHOD *biom,
                         int (*bread) (BIO *, char *, size_t, size_t *))
{
    biom->bread_old = NULL;
    biom->bread = bread;
    return 1;
}

int (*BIO_meth_get_puts(const BIO_METHOD *biom)) (BIO *, const char *)
{
    return biom->bputs;
}

int BIO_meth_set_puts(BIO_METHOD *biom,
                      int (*bputs) (BIO *, const char *))
{
    biom->bputs = bputs;
    return 1;
}

int (*BIO_meth_get_gets(const BIO_METHOD *biom)) (BIO *, char *, int)
{
    return biom->bgets;
}

int BIO_meth_set_gets(BIO_METHOD *biom,
                      int (*bgets) (BIO *, char *, int))
{
    biom->bgets = bgets;
    return 1;
}

long (*BIO_meth_get_ctrl(const BIO_METHOD *biom)) (BIO *, int, long, void *)
{
    return biom->ctrl;
}

int BIO_meth_set_ctrl(BIO_METHOD *biom,
                      long (*ctrl) (BIO *, int, long, void *))
{
    biom->ctrl = ctrl;
    return 1;
}

int (*BIO_meth_get_create(const BIO_METHOD *biom)) (BIO *)
{
    return biom->create;
}

int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *))
{
    biom->create = create;
    return 1;
}

int (*BIO_meth_get_destroy(const BIO_METHOD *biom)) (BIO *)
{
    return biom->destroy;
}

int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *))
{
    biom->destroy = destroy;
    return 1;
}

long (*BIO_meth_get_callback_ctrl(const BIO_METHOD *biom)) (BIO *, int, BIO_info_cb *)
{
    return biom->callback_ctrl;
}

int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
                               long (*callback_ctrl) (BIO *, int,
                                                      BIO_info_cb *))
{
    biom->callback_ctrl = callback_ctrl;
    return 1;
}

Coverage Report

Created: 2025-06-13 06:58

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (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_local.h"
11		#include "internal/thread_once.h"
12
13		CRYPTO_RWLOCK *bio_type_lock = NULL;
14		static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT;
15
16		DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
17	0	{
18	0	bio_type_lock = CRYPTO_THREAD_lock_new();
19	0	return bio_type_lock != NULL;
20	0	}
21
22		int BIO_get_new_index(void)
23	0	{
24	0	static CRYPTO_REF_COUNT bio_count = BIO_TYPE_START;
25	0	int newval;
26
27	0	if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) {
28	0	ERR_raise(ERR_LIB_BIO, ERR_R_MALLOC_FAILURE);
29	0	return -1;
30	0	}
31	0	if (!CRYPTO_UP_REF(&bio_count, &newval, bio_type_lock))
32	0	return -1;
33	0	return newval;
34	0	}
35
36		BIO_METHOD BIO_meth_new(int type, const char name)
37	45	{
38	45	BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));
39
40	45	if (biom == NULL
41	45	\|\| (biom->name = OPENSSL_strdup(name)) == NULL) {
42	0	OPENSSL_free(biom);
43	0	ERR_raise(ERR_LIB_BIO, ERR_R_MALLOC_FAILURE);
44	0	return NULL;
45	0	}
46	45	biom->type = type;
47	45	return biom;
48	45	}
49
50		void BIO_meth_free(BIO_METHOD *biom)
51	43	{
52	43	if (biom != NULL) {
53	43	OPENSSL_free(biom->name);
54	43	OPENSSL_free(biom);
55	43	}
56	43	}
57
58		int (BIO_meth_get_write(const BIO_METHOD biom)) (BIO , const char , int)
59	0	{
60	0	return biom->bwrite_old;
61	0	}
62
63		int (BIO_meth_get_write_ex(const BIO_METHOD biom)) (BIO , const char , size_t,
64		size_t *)
65	0	{
66	0	return biom->bwrite;
67	0	}
68
69		/* Conversion for old style bwrite to new style */
70		int bwrite_conv(BIO bio, const char data, size_t datal, size_t *written)
71	336M	{
72	336M	int ret;
73
74	336M	if (datal > INT_MAX)
75	0	datal = INT_MAX;
76
77	336M	ret = bio->method->bwrite_old(bio, data, (int)datal);
78
79	336M	if (ret <= 0) {
80	0	*written = 0;
81	0	return ret;
82	0	}
83
84	336M	*written = (size_t)ret;
85
86	336M	return 1;
87	336M	}
88
89		int BIO_meth_set_write(BIO_METHOD *biom,
90		int (bwrite) (BIO , const char *, int))
91	0	{
92	0	biom->bwrite_old = bwrite;
93	0	biom->bwrite = bwrite_conv;
94	0	return 1;
95	0	}
96
97		int BIO_meth_set_write_ex(BIO_METHOD *biom,
98		int (bwrite) (BIO , const char , size_t, size_t ))
99	45	{
100	45	biom->bwrite_old = NULL;
101	45	biom->bwrite = bwrite;
102	45	return 1;
103	45	}
104
105		int (BIO_meth_get_read(const BIO_METHOD biom)) (BIO , char , int)
106	0	{
107	0	return biom->bread_old;
108	0	}
109
110		int (BIO_meth_get_read_ex(const BIO_METHOD biom)) (BIO , char , size_t, size_t *)
111	0	{
112	0	return biom->bread;
113	0	}
114
115		/* Conversion for old style bread to new style */
116		int bread_conv(BIO bio, char data, size_t datal, size_t *readbytes)
117	1.42G	{
118	1.42G	int ret;
119
120	1.42G	if (datal > INT_MAX)
121	0	datal = INT_MAX;
122
123	1.42G	ret = bio->method->bread_old(bio, data, (int)datal);
124
125	1.42G	if (ret <= 0) {
126	3.24M	*readbytes = 0;
127	3.24M	return ret;
128	3.24M	}
129
130	1.41G	*readbytes = (size_t)ret;
131
132	1.41G	return 1;
133	1.42G	}
134
135		int BIO_meth_set_read(BIO_METHOD *biom,
136		int (bread) (BIO , char *, int))
137	0	{
138	0	biom->bread_old = bread;
139	0	biom->bread = bread_conv;
140	0	return 1;
141	0	}
142
143		int BIO_meth_set_read_ex(BIO_METHOD *biom,
144		int (bread) (BIO , char , size_t, size_t ))
145	45	{
146	45	biom->bread_old = NULL;
147	45	biom->bread = bread;
148	45	return 1;
149	45	}
150
151		int (BIO_meth_get_puts(const BIO_METHOD biom)) (BIO , const char )
152	0	{
153	0	return biom->bputs;
154	0	}
155
156		int BIO_meth_set_puts(BIO_METHOD *biom,
157		int (bputs) (BIO , const char *))
158	45	{
159	45	biom->bputs = bputs;
160	45	return 1;
161	45	}
162
163		int (BIO_meth_get_gets(const BIO_METHOD biom)) (BIO , char , int)
164	0	{
165	0	return biom->bgets;
166	0	}
167
168		int BIO_meth_set_gets(BIO_METHOD *biom,
169		int (bgets) (BIO , char *, int))
170	45	{
171	45	biom->bgets = bgets;
172	45	return 1;
173	45	}
174
175		long (BIO_meth_get_ctrl(const BIO_METHOD biom)) (BIO , int, long, void )
176	0	{
177	0	return biom->ctrl;
178	0	}
179
180		int BIO_meth_set_ctrl(BIO_METHOD *biom,
181		long (ctrl) (BIO , int, long, void *))
182	45	{
183	45	biom->ctrl = ctrl;
184	45	return 1;
185	45	}
186
187		int (BIO_meth_get_create(const BIO_METHOD biom)) (BIO *)
188	0	{
189	0	return biom->create;
190	0	}
191
192		int BIO_meth_set_create(BIO_METHOD biom, int (create) (BIO *))
193	45	{
194	45	biom->create = create;
195	45	return 1;
196	45	}
197
198		int (BIO_meth_get_destroy(const BIO_METHOD biom)) (BIO *)
199	0	{
200	0	return biom->destroy;
201	0	}
202
203		int BIO_meth_set_destroy(BIO_METHOD biom, int (destroy) (BIO *))
204	45	{
205	45	biom->destroy = destroy;
206	45	return 1;
207	45	}
208
209		long (BIO_meth_get_callback_ctrl(const BIO_METHOD biom)) (BIO , int, BIO_info_cb )
210	0	{
211	0	return biom->callback_ctrl;
212	0	}
213
214		int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
215		long (callback_ctrl) (BIO , int,
216		BIO_info_cb *))
217	0	{
218	0	biom->callback_ctrl = callback_ctrl;
219	0	return 1;
220	0	}