/src/openssl34/crypto/bio/bio_meth.c

Source
/*
 * Copyright 2016-2024 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_REF_COUNT bio_type_count;
static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT;

DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
{
    return CRYPTO_NEW_REF(&bio_type_count, BIO_TYPE_START);
}

int BIO_get_new_index(void)
{
    int newval;

    if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) {
        /* Perhaps the error should be raised in do_bio_type_init()? */
        ERR_raise(ERR_LIB_BIO, ERR_R_CRYPTO_LIB);
        return -1;
    }
    if (!CRYPTO_UP_REF(&bio_type_count, &newval))
        return -1;
    if (newval > BIO_TYPE_MASK)
        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);
        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;
}

int BIO_meth_set_sendmmsg(BIO_METHOD *biom,
    int (*bsendmmsg)(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *))
{
    biom->bsendmmsg = bsendmmsg;
    return 1;
}

int (*BIO_meth_get_sendmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *)
{
    return biom->bsendmmsg;
}

int BIO_meth_set_recvmmsg(BIO_METHOD *biom,
    int (*brecvmmsg)(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *))
{
    biom->brecvmmsg = brecvmmsg;
    return 1;
}

int (*BIO_meth_get_recvmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *)
{
    return biom->brecvmmsg;
}

Coverage Report

Created: 2025-12-31 06:58

Line	Count	Source
1		/*
2		* Copyright 2016-2024 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_REF_COUNT bio_type_count;
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	return CRYPTO_NEW_REF(&bio_type_count, BIO_TYPE_START);
19	0	}
20
21		int BIO_get_new_index(void)
22	0	{
23	0	int newval;
24
25	0	if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) {
26		/* Perhaps the error should be raised in do_bio_type_init()? */
27	0	ERR_raise(ERR_LIB_BIO, ERR_R_CRYPTO_LIB);
28	0	return -1;
29	0	}
30	0	if (!CRYPTO_UP_REF(&bio_type_count, &newval))
31	0	return -1;
32	0	if (newval > BIO_TYPE_MASK)
33	0	return -1;
34	0	return newval;
35	0	}
36
37		BIO_METHOD BIO_meth_new(int type, const char name)
38	99	{
39	99	BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));
40
41	99	if (biom == NULL
42	99	\|\| (biom->name = OPENSSL_strdup(name)) == NULL) {
43	0	OPENSSL_free(biom);
44	0	return NULL;
45	0	}
46	99	biom->type = type;
47	99	return biom;
48	99	}
49
50		void BIO_meth_free(BIO_METHOD *biom)
51	72	{
52	72	if (biom != NULL) {
53	72	OPENSSL_free(biom->name);
54	72	OPENSSL_free(biom);
55	72	}
56	72	}
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	515M	{
72	515M	int ret;
73
74	515M	if (datal > INT_MAX)
75	0	datal = INT_MAX;
76
77	515M	ret = bio->method->bwrite_old(bio, data, (int)datal);
78
79	515M	if (ret <= 0) {
80	0	*written = 0;
81	0	return ret;
82	0	}
83
84	515M	*written = (size_t)ret;
85
86	515M	return 1;
87	515M	}
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	99	{
100	99	biom->bwrite_old = NULL;
101	99	biom->bwrite = bwrite;
102	99	return 1;
103	99	}
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	2.30G	{
118	2.30G	int ret;
119
120	2.30G	if (datal > INT_MAX)
121	0	datal = INT_MAX;
122
123	2.30G	ret = bio->method->bread_old(bio, data, (int)datal);
124
125	2.30G	if (ret <= 0) {
126	4.69M	*readbytes = 0;
127	4.69M	return ret;
128	4.69M	}
129
130	2.29G	*readbytes = (size_t)ret;
131
132	2.29G	return 1;
133	2.30G	}
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	99	{
146	99	biom->bread_old = NULL;
147	99	biom->bread = bread;
148	99	return 1;
149	99	}
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	99	{
159	99	biom->bputs = bputs;
160	99	return 1;
161	99	}
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	99	{
171	99	biom->bgets = bgets;
172	99	return 1;
173	99	}
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	99	{
183	99	biom->ctrl = ctrl;
184	99	return 1;
185	99	}
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	99	{
194	99	biom->create = create;
195	99	return 1;
196	99	}
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	99	{
205	99	biom->destroy = destroy;
206	99	return 1;
207	99	}
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	}
221
222		int BIO_meth_set_sendmmsg(BIO_METHOD *biom,
223		int (bsendmmsg)(BIO , BIO_MSG , size_t, size_t, uint64_t, size_t ))
224	0	{
225	0	biom->bsendmmsg = bsendmmsg;
226	0	return 1;
227	0	}
228
229		int (BIO_meth_get_sendmmsg(const BIO_METHOD biom))(BIO , BIO_MSG , size_t, size_t, uint64_t, size_t *)
230	0	{
231	0	return biom->bsendmmsg;
232	0	}
233
234		int BIO_meth_set_recvmmsg(BIO_METHOD *biom,
235		int (brecvmmsg)(BIO , BIO_MSG , size_t, size_t, uint64_t, size_t ))
236	0	{
237	0	biom->brecvmmsg = brecvmmsg;
238	0	return 1;
239	0	}
240
241		int (BIO_meth_get_recvmmsg(const BIO_METHOD biom))(BIO , BIO_MSG , size_t, size_t, uint64_t, size_t *)
242	0	{
243	0	return biom->brecvmmsg;
244	0	}