Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/bio/bio_lib.c	Lines:	170	260	65.4 %
Date:	2017-11-13	Branches:	80	166	48.2 %


/* $OpenBSD: bio_lib.c,v 1.23 2017/01/29 17:49:22 beck Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <errno.h>
#include <stdio.h>

#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/stack.h>

BIO *
BIO_new(BIO_METHOD *method)
{
	BIO *ret = NULL;

	ret = malloc(sizeof(BIO));
	if (ret == NULL) {
		BIOerror(ERR_R_MALLOC_FAILURE);
		return (NULL);
	}
	if (!BIO_set(ret, method)) {
		free(ret);
		ret = NULL;
	}
	return (ret);
}

int
BIO_set(BIO *bio, BIO_METHOD *method)
{
	bio->method = method;
	bio->callback = NULL;
	bio->cb_arg = NULL;
	bio->init = 0;
	bio->shutdown = 1;
	bio->flags = 0;
	bio->retry_reason = 0;
	bio->num = 0;
	bio->ptr = NULL;
	bio->prev_bio = NULL;
	bio->next_bio = NULL;
	bio->references = 1;
	bio->num_read = 0L;
	bio->num_write = 0L;
	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
	if (method->create != NULL)
		if (!method->create(bio)) {
			CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio,
			    &bio->ex_data);
			return (0);
		}
	return (1);
}

int
BIO_free(BIO *a)
{
	int i;

	if (a == NULL)
		return (0);

	i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO);
	if (i > 0)
		return (1);
	if ((a->callback != NULL) &&
	    ((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0))
		return (i);

	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);

	if (a->method != NULL && a->method->destroy != NULL)
		a->method->destroy(a);
	free(a);
	return (1);
}

void
BIO_vfree(BIO *a)
{
	BIO_free(a);
}

void
BIO_clear_flags(BIO *b, int flags)
{
	b->flags &= ~flags;
}

int
BIO_test_flags(const BIO *b, int flags)
{
	return (b->flags & flags);
}

void
BIO_set_flags(BIO *b, int flags)
{
	b->flags |= flags;
}

long
(*BIO_get_callback(const BIO *b))(struct bio_st *, int, const char *, int,
    long, long)
{
	return b->callback;
}

void
BIO_set_callback(BIO *b, long (*cb)(struct bio_st *, int, const char *, int,
    long, long))
{
	b->callback = cb;
}

void
BIO_set_callback_arg(BIO *b, char *arg)
{
	b->cb_arg = arg;
}

char *
BIO_get_callback_arg(const BIO *b)
{
	return b->cb_arg;
}

const char *
BIO_method_name(const BIO *b)
{
	return b->method->name;
}

int
BIO_method_type(const BIO *b)
{
	return b->method->type;
}

int
BIO_read(BIO *b, void *out, int outl)
{
	int i;
	long (*cb)(BIO *, int, const char *, int, long, long);

	if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) {
		BIOerror(BIO_R_UNSUPPORTED_METHOD);
		return (-2);
	}

	cb = b->callback;
	if ((cb != NULL) &&
	    ((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0))
		return (i);

	if (!b->init) {
		BIOerror(BIO_R_UNINITIALIZED);
		return (-2);
	}

	i = b->method->bread(b, out, outl);

	if (i > 0)
		b->num_read += (unsigned long)i;

	if (cb != NULL)
		i = (int)cb(b, BIO_CB_READ|BIO_CB_RETURN, out, outl,
		    0L, (long)i);
	return (i);
}

int
BIO_write(BIO *b, const void *in, int inl)
{
	int i;
	long (*cb)(BIO *, int, const char *, int, long, long);

	if (b == NULL)
		return (0);

	cb = b->callback;
	if ((b->method == NULL) || (b->method->bwrite == NULL)) {
		BIOerror(BIO_R_UNSUPPORTED_METHOD);
		return (-2);
	}

	if ((cb != NULL) &&
	    ((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0))
		return (i);

	if (!b->init) {
		BIOerror(BIO_R_UNINITIALIZED);
		return (-2);
	}

	i = b->method->bwrite(b, in, inl);

	if (i > 0)
		b->num_write += (unsigned long)i;

	if (cb != NULL)
		i = (int)cb(b, BIO_CB_WRITE|BIO_CB_RETURN, in, inl,
		    0L, (long)i);
	return (i);
}

int
BIO_puts(BIO *b, const char *in)
{
	int i;
	long (*cb)(BIO *, int, const char *, int, long, long);

	if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL)) {
		BIOerror(BIO_R_UNSUPPORTED_METHOD);
		return (-2);
	}

	cb = b->callback;

	if ((cb != NULL) &&
	    ((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0))
		return (i);

	if (!b->init) {
		BIOerror(BIO_R_UNINITIALIZED);
		return (-2);
	}

	i = b->method->bputs(b, in);

	if (i > 0)
		b->num_write += (unsigned long)i;

	if (cb != NULL)
		i = (int)cb(b, BIO_CB_PUTS|BIO_CB_RETURN, in, 0, 0L, (long)i);
	return (i);
}

int
BIO_gets(BIO *b, char *in, int inl)
{
	int i;
	long (*cb)(BIO *, int, const char *, int, long, long);

	if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) {
		BIOerror(BIO_R_UNSUPPORTED_METHOD);
		return (-2);
	}

	cb = b->callback;

	if ((cb != NULL) &&
	    ((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0))
		return (i);

	if (!b->init) {
		BIOerror(BIO_R_UNINITIALIZED);
		return (-2);
	}

	i = b->method->bgets(b, in, inl);

	if (cb != NULL)
		i = (int)cb(b, BIO_CB_GETS|BIO_CB_RETURN, in, inl, 0L, (long)i);
	return (i);
}

int
BIO_indent(BIO *b, int indent, int max)
{
	if (indent < 0)
		indent = 0;
	if (indent > max)
		indent = max;
	while (indent--)
		if (BIO_puts(b, " ") != 1)
			return 0;
	return 1;
}

long
BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg)
{
	int i;

	i = iarg;
	return (BIO_ctrl(b, cmd, larg, (char *)&i));
}

char *
BIO_ptr_ctrl(BIO *b, int cmd, long larg)
{
	char *p = NULL;

	if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0)
		return (NULL);
	else
		return (p);
}

long
BIO_ctrl(BIO *b, int cmd, long larg, void *parg)
{
	long ret;
	long (*cb)(BIO *, int, const char *, int, long, long);

	if (b == NULL)
		return (0);

	if ((b->method == NULL) || (b->method->ctrl == NULL)) {
		BIOerror(BIO_R_UNSUPPORTED_METHOD);
		return (-2);
	}

	cb = b->callback;

	if ((cb != NULL) &&
	    ((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0))
		return (ret);

	ret = b->method->ctrl(b, cmd, larg, parg);

	if (cb != NULL)
		ret = cb(b, BIO_CB_CTRL|BIO_CB_RETURN, parg, cmd, larg, ret);
	return (ret);
}

long
BIO_callback_ctrl(BIO *b, int cmd,
    void (*fp)(struct bio_st *, int, const char *, int, long, long))
{
	long ret;
	long (*cb)(BIO *, int, const char *, int, long, long);

	if (b == NULL)
		return (0);

	if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) {
		BIOerror(BIO_R_UNSUPPORTED_METHOD);
		return (-2);
	}

	cb = b->callback;

	if ((cb != NULL) &&
	    ((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0))
		return (ret);

	ret = b->method->callback_ctrl(b, cmd, fp);

	if (cb != NULL)
		ret = cb(b, BIO_CB_CTRL|BIO_CB_RETURN, (void *)&fp, cmd, 0, ret);
	return (ret);
}

/* It is unfortunate to duplicate in functions what the BIO_(w)pending macros
 * do; but those macros have inappropriate return type, and for interfacing
 * from other programming languages, C macros aren't much of a help anyway. */
size_t
BIO_ctrl_pending(BIO *bio)
{
	return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL);
}

size_t
BIO_ctrl_wpending(BIO *bio)
{
	return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL);
}


/* put the 'bio' on the end of b's list of operators */
BIO *
BIO_push(BIO *b, BIO *bio)
{
	BIO *lb;

	if (b == NULL)
		return (bio);
	lb = b;
	while (lb->next_bio != NULL)
		lb = lb->next_bio;
	lb->next_bio = bio;
	if (bio != NULL)
		bio->prev_bio = lb;
	/* called to do internal processing */
	BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb);
	return (b);
}

/* Remove the first and return the rest */
BIO *
BIO_pop(BIO *b)
{
	BIO *ret;

	if (b == NULL)
		return (NULL);
	ret = b->next_bio;

	BIO_ctrl(b, BIO_CTRL_POP, 0, b);

	if (b->prev_bio != NULL)
		b->prev_bio->next_bio = b->next_bio;
	if (b->next_bio != NULL)
		b->next_bio->prev_bio = b->prev_bio;

	b->next_bio = NULL;
	b->prev_bio = NULL;
	return (ret);
}

BIO *
BIO_get_retry_BIO(BIO *bio, int *reason)
{
	BIO *b, *last;

	b = last = bio;
	for (;;) {
		if (!BIO_should_retry(b))
			break;
		last = b;
		b = b->next_bio;
		if (b == NULL)
			break;
	}
	if (reason != NULL)
		*reason = last->retry_reason;
	return (last);
}

int
BIO_get_retry_reason(BIO *bio)
{
	return (bio->retry_reason);
}

BIO *
BIO_find_type(BIO *bio, int type)
{
	int mt, mask;

	if (!bio)
		return NULL;
	mask = type & 0xff;
	do {
		if (bio->method != NULL) {
			mt = bio->method->type;
			if (!mask) {
				if (mt & type)
					return (bio);
			} else if (mt == type)
				return (bio);
		}
		bio = bio->next_bio;
	} while (bio != NULL);
	return (NULL);
}

BIO *
BIO_next(BIO *b)
{
	if (!b)
		return NULL;
	return b->next_bio;
}

void
BIO_free_all(BIO *bio)
{
	BIO *b;
	int ref;

	while (bio != NULL) {
		b = bio;
		ref = b->references;
		bio = bio->next_bio;
		BIO_free(b);
		/* Since ref count > 1, don't free anyone else. */
		if (ref > 1)
			break;
	}
}

BIO *
BIO_dup_chain(BIO *in)
{
	BIO *ret = NULL, *eoc = NULL, *bio, *new_bio;

	for (bio = in; bio != NULL; bio = bio->next_bio) {
		if ((new_bio = BIO_new(bio->method)) == NULL)
			goto err;
		new_bio->callback = bio->callback;
		new_bio->cb_arg = bio->cb_arg;
		new_bio->init = bio->init;
		new_bio->shutdown = bio->shutdown;
		new_bio->flags = bio->flags;

		/* This will let SSL_s_sock() work with stdin/stdout */
		new_bio->num = bio->num;

		if (!BIO_dup_state(bio, (char *)new_bio)) {
			BIO_free(new_bio);
			goto err;
		}

		/* copy app data */
		if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO,
		    &new_bio->ex_data, &bio->ex_data))
			goto err;

		if (ret == NULL) {
			eoc = new_bio;
			ret = eoc;
		} else {
			BIO_push(eoc, new_bio);
			eoc = new_bio;
		}
	}
	return (ret);
err:
	BIO_free(ret);
	return (NULL);

}

void
BIO_copy_next_retry(BIO *b)
{
	BIO_set_flags(b, BIO_get_retry_flags(b->next_bio));
	b->retry_reason = b->next_bio->retry_reason;
}

int
BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
    CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
{
	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, argl, argp,
	    new_func, dup_func, free_func);
}

int
BIO_set_ex_data(BIO *bio, int idx, void *data)
{
	return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data));
}

void *
BIO_get_ex_data(BIO *bio, int idx)
{
	return (CRYPTO_get_ex_data(&(bio->ex_data), idx));
}

unsigned long
BIO_number_read(BIO *bio)
{
	if (bio)
		return bio->num_read;
	return 0;
}

unsigned long
BIO_number_written(BIO *bio)
{
	if (bio)
		return bio->num_write;
	return 0;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: bio_lib.c,v 1.23 2017/01/29 17:49:22 beck Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3			* All rights reserved.
4			*
5			* This package is an SSL implementation written
6			* by Eric Young (eay@cryptsoft.com).
7			* The implementation was written so as to conform with Netscapes SSL.
8			*
9			* This library is free for commercial and non-commercial use as long as
10			* the following conditions are aheared to. The following conditions
11			* apply to all code found in this distribution, be it the RC4, RSA,
12			* lhash, DES, etc., code; not just the SSL code. The SSL documentation
13			* included with this distribution is covered by the same copyright terms
14			* except that the holder is Tim Hudson (tjh@cryptsoft.com).
15			*
16			* Copyright remains Eric Young's, and as such any Copyright notices in
17			* the code are not to be removed.
18			* If this package is used in a product, Eric Young should be given attribution
19			* as the author of the parts of the library used.
20			* This can be in the form of a textual message at program startup or
21			* in documentation (online or textual) provided with the package.
22			*
23			* Redistribution and use in source and binary forms, with or without
24			* modification, are permitted provided that the following conditions
25			* are met:
26			* 1. Redistributions of source code must retain the copyright
27			* notice, this list of conditions and the following disclaimer.
28			* 2. Redistributions in binary form must reproduce the above copyright
29			* notice, this list of conditions and the following disclaimer in the
30			* documentation and/or other materials provided with the distribution.
31			* 3. All advertising materials mentioning features or use of this software
32			* must display the following acknowledgement:
33			* "This product includes cryptographic software written by
34			* Eric Young (eay@cryptsoft.com)"
35			* The word 'cryptographic' can be left out if the rouines from the library
36			* being used are not cryptographic related :-).
37			* 4. If you include any Windows specific code (or a derivative thereof) from
38			* the apps directory (application code) you must include an acknowledgement:
39			* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40			*
41			* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51			* SUCH DAMAGE.
52			*
53			* The licence and distribution terms for any publically available version or
54			* derivative of this code cannot be changed. i.e. this code cannot simply be
55			* copied and put under another distribution licence
56			* [including the GNU Public Licence.]
57			*/
58
59			#include <errno.h>
60			#include <stdio.h>
61
62			#include <openssl/bio.h>
63			#include <openssl/crypto.h>
64			#include <openssl/err.h>
65			#include <openssl/stack.h>
66
67			BIO *
68			BIO_new(BIO_METHOD *method)
69			{
70			BIO *ret = NULL;
71
72		118686	ret = malloc(sizeof(BIO));
73	✗✓	59343	if (ret == NULL) {
74			BIOerror(ERR_R_MALLOC_FAILURE);
75			return (NULL);
76			}
77	✗✓	59343	if (!BIO_set(ret, method)) {
78			free(ret);
79			ret = NULL;
80			}
81		59343	return (ret);
82		59343	}
83
84			int
85			BIO_set(BIO bio, BIO_METHOD method)
86			{
87		118686	bio->method = method;
88		59343	bio->callback = NULL;
89		59343	bio->cb_arg = NULL;
90		59343	bio->init = 0;
91		59343	bio->shutdown = 1;
92		59343	bio->flags = 0;
93		59343	bio->retry_reason = 0;
94		59343	bio->num = 0;
95		59343	bio->ptr = NULL;
96		59343	bio->prev_bio = NULL;
97		59343	bio->next_bio = NULL;
98		59343	bio->references = 1;
99		59343	bio->num_read = 0L;
100		59343	bio->num_write = 0L;
101		59343	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
102	✓✓	59343	if (method->create != NULL)
103	✗✓	59331	if (!method->create(bio)) {
104			CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio,
105			&bio->ex_data);
106			return (0);
107			}
108		59343	return (1);
109		59343	}
110
111			int
112			BIO_free(BIO *a)
113			{
114			int i;
115
116	✓✓	169000	if (a == NULL)
117		24737	return (0);
118
119		59763	i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO);
120	✓✓	59763	if (i > 0)
121		438	return (1);
122	✗✓✗✗	59325	if ((a->callback != NULL) &&
123			((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0))
124			return (i);
125
126		59325	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);
127
128	✓✗✓✓	118650	if (a->method != NULL && a->method->destroy != NULL)
129		59313	a->method->destroy(a);
130		59325	free(a);
131		59325	return (1);
132		84500	}
133
134			void
135			BIO_vfree(BIO *a)
136			{
137			BIO_free(a);
138			}
139
140			void
141			BIO_clear_flags(BIO *b, int flags)
142			{
143		704600	b->flags &= ~flags;
144		352300	}
145
146			int
147			BIO_test_flags(const BIO *b, int flags)
148			{
149		90254	return (b->flags & flags);
150			}
151
152			void
153			BIO_set_flags(BIO *b, int flags)
154			{
155		80954	b->flags \|= flags;
156		40477	}
157
158			long
159			(BIO_get_callback(const BIO b))(struct bio_st , int, const char , int,
160			long, long)
161			{
162		4	return b->callback;
163			}
164
165			void
166			BIO_set_callback(BIO b, long (cb)(struct bio_st , int, const char , int,
167			long, long))
168			{
169		4	b->callback = cb;
170		2	}
171
172			void
173			BIO_set_callback_arg(BIO b, char arg)
174			{
175		4	b->cb_arg = arg;
176		2	}
177
178			char *
179			BIO_get_callback_arg(const BIO *b)
180			{
181		4	return b->cb_arg;
182			}
183
184			const char *
185			BIO_method_name(const BIO *b)
186			{
187			return b->method->name;
188			}
189
190			int
191			BIO_method_type(const BIO *b)
192			{
193		40	return b->method->type;
194			}
195
196			int
197			BIO_read(BIO b, void out, int outl)
198			{
199			int i;
200			long (cb)(BIO , int, const char *, int, long, long);
201
202	✓✗✓✗ ✗✓	517920	if ((b == NULL) \|\| (b->method == NULL) \|\| (b->method->bread == NULL)) {
203			BIOerror(BIO_R_UNSUPPORTED_METHOD);
204			return (-2);
205			}
206
207		129480	cb = b->callback;
208	✗✓✗✗	129480	if ((cb != NULL) &&
209			((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0))
210			return (i);
211
212	✗✓	129480	if (!b->init) {
213			BIOerror(BIO_R_UNINITIALIZED);
214			return (-2);
215			}
216
217		129480	i = b->method->bread(b, out, outl);
218
219	✓✓	129480	if (i > 0)
220		116506	b->num_read += (unsigned long)i;
221
222	✗✓	129480	if (cb != NULL)
223			i = (int)cb(b, BIO_CB_READ\|BIO_CB_RETURN, out, outl,
224			0L, (long)i);
225		129480	return (i);
226		129480	}
227
228			int
229			BIO_write(BIO b, const void in, int inl)
230			{
231			int i;
232			long (cb)(BIO , int, const char *, int, long, long);
233
234	✗✓	5378756	if (b == NULL)
235			return (0);
236
237		2689378	cb = b->callback;
238	✓✗✗✓	5378756	if ((b->method == NULL) \|\| (b->method->bwrite == NULL)) {
239			BIOerror(BIO_R_UNSUPPORTED_METHOD);
240			return (-2);
241			}
242
243	✗✓✗✗	2689378	if ((cb != NULL) &&
244			((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0))
245			return (i);
246
247	✓✓	2689378	if (!b->init) {
248		144	BIOerror(BIO_R_UNINITIALIZED);
249		144	return (-2);
250			}
251
252		2689234	i = b->method->bwrite(b, in, inl);
253
254	✓✓	2689234	if (i > 0)
255		2683312	b->num_write += (unsigned long)i;
256
257	✗✓	2689234	if (cb != NULL)
258			i = (int)cb(b, BIO_CB_WRITE\|BIO_CB_RETURN, in, inl,
259			0L, (long)i);
260		2689234	return (i);
261		2689378	}
262
263			int
264			BIO_puts(BIO b, const char in)
265			{
266			int i;
267			long (cb)(BIO , int, const char *, int, long, long);
268
269	✓✗✓✗ ✗✓	253088	if ((b == NULL) \|\| (b->method == NULL) \|\| (b->method->bputs == NULL)) {
270			BIOerror(BIO_R_UNSUPPORTED_METHOD);
271			return (-2);
272			}
273
274		63272	cb = b->callback;
275
276	✗✓✗✗	63272	if ((cb != NULL) &&
277			((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0))
278			return (i);
279
280	✗✓	63272	if (!b->init) {
281			BIOerror(BIO_R_UNINITIALIZED);
282			return (-2);
283			}
284
285		63272	i = b->method->bputs(b, in);
286
287	✓✗	63272	if (i > 0)
288		63272	b->num_write += (unsigned long)i;
289
290	✗✓	63272	if (cb != NULL)
291			i = (int)cb(b, BIO_CB_PUTS\|BIO_CB_RETURN, in, 0, 0L, (long)i);
292		63272	return (i);
293		63272	}
294
295			int
296			BIO_gets(BIO b, char in, int inl)
297			{
298			int i;
299			long (cb)(BIO , int, const char *, int, long, long);
300
301	✓✗✓✗ ✗✓	2199980	if ((b == NULL) \|\| (b->method == NULL) \|\| (b->method->bgets == NULL)) {
302			BIOerror(BIO_R_UNSUPPORTED_METHOD);
303			return (-2);
304			}
305
306		549995	cb = b->callback;
307
308	✗✓✗✗	549995	if ((cb != NULL) &&
309			((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0))
310			return (i);
311
312	✗✓	549995	if (!b->init) {
313			BIOerror(BIO_R_UNINITIALIZED);
314			return (-2);
315			}
316
317		549995	i = b->method->bgets(b, in, inl);
318
319	✗✓	549995	if (cb != NULL)
320			i = (int)cb(b, BIO_CB_GETS\|BIO_CB_RETURN, in, inl, 0L, (long)i);
321		549995	return (i);
322		549995	}
323
324			int
325			BIO_indent(BIO *b, int indent, int max)
326			{
327	✗✓	14912	if (indent < 0)
328			indent = 0;
329	✗✓	7456	if (indent > max)
330			indent = max;
331	✓✓	87246	while (indent--)
332	✗✓	36167	if (BIO_puts(b, " ") != 1)
333			return 0;
334		7456	return 1;
335		7456	}
336
337			long
338			BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg)
339			{
340		32256	int i;
341
342		16128	i = iarg;
343		32256	return (BIO_ctrl(b, cmd, larg, (char *)&i));
344		16128	}
345
346			char *
347			BIO_ptr_ctrl(BIO *b, int cmd, long larg)
348			{
349			char *p = NULL;
350
351			if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0)
352			return (NULL);
353			else
354			return (p);
355			}
356
357			long
358			BIO_ctrl(BIO b, int cmd, long larg, void parg)
359			{
360			long ret;
361			long (cb)(BIO , int, const char *, int, long, long);
362
363	✓✓	542574	if (b == NULL)
364		24	return (0);
365
366	✓✗✗✓	542526	if ((b->method == NULL) \|\| (b->method->ctrl == NULL)) {
367			BIOerror(BIO_R_UNSUPPORTED_METHOD);
368			return (-2);
369			}
370
371		271263	cb = b->callback;
372
373	✗✓✗✗	271263	if ((cb != NULL) &&
374			((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0))
375			return (ret);
376
377		271263	ret = b->method->ctrl(b, cmd, larg, parg);
378
379	✗✓	271263	if (cb != NULL)
380			ret = cb(b, BIO_CB_CTRL\|BIO_CB_RETURN, parg, cmd, larg, ret);
381		271263	return (ret);
382		271287	}
383
384			long
385			BIO_callback_ctrl(BIO *b, int cmd,
386			void (fp)(struct bio_st , int, const char *, int, long, long))
387			{
388			long ret;
389			long (cb)(BIO , int, const char *, int, long, long);
390
391			if (b == NULL)
392			return (0);
393
394			if ((b->method == NULL) \|\| (b->method->callback_ctrl == NULL)) {
395			BIOerror(BIO_R_UNSUPPORTED_METHOD);
396			return (-2);
397			}
398
399			cb = b->callback;
400
401			if ((cb != NULL) &&
402			((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0))
403			return (ret);
404
405			ret = b->method->callback_ctrl(b, cmd, fp);
406
407			if (cb != NULL)
408			ret = cb(b, BIO_CB_CTRL\|BIO_CB_RETURN, (void *)&fp, cmd, 0, ret);
409			return (ret);
410			}
411
412			/* It is unfortunate to duplicate in functions what the BIO_(w)pending macros
413			* do; but those macros have inappropriate return type, and for interfacing
414			* from other programming languages, C macros aren't much of a help anyway. */
415			size_t
416			BIO_ctrl_pending(BIO *bio)
417			{
418		10908	return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL);
419			}
420
421			size_t
422			BIO_ctrl_wpending(BIO *bio)
423			{
424			return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL);
425			}
426
427
428			/* put the 'bio' on the end of b's list of operators */
429			BIO *
430			BIO_push(BIO b, BIO bio)
431			{
432			BIO *lb;
433
434	✗✓	35464	if (b == NULL)
435			return (bio);
436			lb = b;
437	✗✓	35464	while (lb->next_bio != NULL)
438			lb = lb->next_bio;
439		17732	lb->next_bio = bio;
440	✓✗	17732	if (bio != NULL)
441		17732	bio->prev_bio = lb;
442			/* called to do internal processing */
443		17732	BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb);
444		17732	return (b);
445		17732	}
446
447			/* Remove the first and return the rest */
448			BIO *
449			BIO_pop(BIO *b)
450			{
451			BIO *ret;
452
453	✗✓	32242	if (b == NULL)
454			return (NULL);
455		16121	ret = b->next_bio;
456
457		16121	BIO_ctrl(b, BIO_CTRL_POP, 0, b);
458
459	✗✓	16121	if (b->prev_bio != NULL)
460			b->prev_bio->next_bio = b->next_bio;
461	✓✗	16121	if (b->next_bio != NULL)
462		16121	b->next_bio->prev_bio = b->prev_bio;
463
464		16121	b->next_bio = NULL;
465		16121	b->prev_bio = NULL;
466		16121	return (ret);
467		16121	}
468
469			BIO *
470			BIO_get_retry_BIO(BIO bio, int reason)
471			{
472			BIO b, last;
473
474			b = last = bio;
475			for (;;) {
476			if (!BIO_should_retry(b))
477			break;
478			last = b;
479			b = b->next_bio;
480			if (b == NULL)
481			break;
482			}
483			if (reason != NULL)
484			*reason = last->retry_reason;
485			return (last);
486			}
487
488			int
489			BIO_get_retry_reason(BIO *bio)
490			{
491			return (bio->retry_reason);
492			}
493
494			BIO *
495			BIO_find_type(BIO *bio, int type)
496			{
497			int mt, mask;
498
499	✗✓	62780	if (!bio)
500			return NULL;
501		31390	mask = type & 0xff;
502		31390	do {
503	✓✗	31398	if (bio->method != NULL) {
504		31398	mt = bio->method->type;
505	✓✓	31398	if (!mask) {
506	✓✗	31362	if (mt & type)
507		31362	return (bio);
508	✓✓	36	} else if (mt == type)
509		28	return (bio);
510			}
511		8	bio = bio->next_bio;
512	✓✗	8	} while (bio != NULL);
513			return (NULL);
514		31390	}
515
516			BIO *
517			BIO_next(BIO *b)
518			{
519			if (!b)
520			return NULL;
521			return b->next_bio;
522			}
523
524			void
525			BIO_free_all(BIO *bio)
526			{
527			BIO *b;
528			int ref;
529
530	✓✓	97538	while (bio != NULL) {
531			b = bio;
532		18778	ref = b->references;
533		18778	bio = bio->next_bio;
534		18778	BIO_free(b);
535			/* Since ref count > 1, don't free anyone else. */
536	✓✓	18778	if (ref > 1)
537			break;
538			}
539		20046	}
540
541			BIO *
542			BIO_dup_chain(BIO *in)
543			{
544			BIO ret = NULL, eoc = NULL, bio, new_bio;
545
546	✓✓	10	for (bio = in; bio != NULL; bio = bio->next_bio) {
547	✓✗	2	if ((new_bio = BIO_new(bio->method)) == NULL)
548			goto err;
549		2	new_bio->callback = bio->callback;
550		2	new_bio->cb_arg = bio->cb_arg;
551		2	new_bio->init = bio->init;
552		2	new_bio->shutdown = bio->shutdown;
553		2	new_bio->flags = bio->flags;
554
555			/* This will let SSL_s_sock() work with stdin/stdout */
556		2	new_bio->num = bio->num;
557
558	✗✓	2	if (!BIO_dup_state(bio, (char *)new_bio)) {
559			BIO_free(new_bio);
560			goto err;
561			}
562
563			/* copy app data */
564	✓✗	2	if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO,
565		2	&new_bio->ex_data, &bio->ex_data))
566			goto err;
567
568	✓✗	2	if (ret == NULL) {
569			eoc = new_bio;
570			ret = eoc;
571		2	} else {
572			BIO_push(eoc, new_bio);
573			eoc = new_bio;
574			}
575			}
576		2	return (ret);
577			err:
578			BIO_free(ret);
579			return (NULL);
580
581		2	}
582
583			void
584			BIO_copy_next_retry(BIO *b)
585			{
586		45660	BIO_set_flags(b, BIO_get_retry_flags(b->next_bio));
587		22830	b->retry_reason = b->next_bio->retry_reason;
588		22830	}
589
590			int
591			BIO_get_ex_new_index(long argl, void argp, CRYPTO_EX_new new_func,
592			CRYPTO_EX_dup dup_func, CRYPTO_EX_free free_func)
593			{
594			return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, argl, argp,
595			new_func, dup_func, free_func);
596			}
597
598			int
599			BIO_set_ex_data(BIO bio, int idx, void data)
600			{
601			return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data));
602			}
603
604			void *
605			BIO_get_ex_data(BIO *bio, int idx)
606			{
607			return (CRYPTO_get_ex_data(&(bio->ex_data), idx));
608			}
609
610			unsigned long
611			BIO_number_read(BIO *bio)
612			{
613	✓✗	8	if (bio)
614		4	return bio->num_read;
615			return 0;
616		4	}
617
618			unsigned long
619			BIO_number_written(BIO *bio)
620			{
621	✓✗	8	if (bio)
622		4	return bio->num_write;
623			return 0;
624		4	}