Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/bio/bss_sock.c	Lines:	58	70	82.9 %
Date:	2017-11-07	Branches:	21	37	56.8 %


/* $OpenBSD: bss_sock.c,v 1.23 2014/07/11 08:44:47 jsing 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 <sys/socket.h>

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

#include <openssl/bio.h>

static int sock_write(BIO *h, const char *buf, int num);
static int sock_read(BIO *h, char *buf, int size);
static int sock_puts(BIO *h, const char *str);
static long sock_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int sock_new(BIO *h);
static int sock_free(BIO *data);
int BIO_sock_should_retry(int s);

static BIO_METHOD methods_sockp = {
	.type = BIO_TYPE_SOCKET,
	.name = "socket",
	.bwrite = sock_write,
	.bread = sock_read,
	.bputs = sock_puts,
	.ctrl = sock_ctrl,
	.create = sock_new,
	.destroy = sock_free
};

BIO_METHOD *
BIO_s_socket(void)
{
	return (&methods_sockp);
}

BIO *
BIO_new_socket(int fd, int close_flag)
{
	BIO *ret;

	ret = BIO_new(BIO_s_socket());
	if (ret == NULL)
		return (NULL);
	BIO_set_fd(ret, fd, close_flag);
	return (ret);
}

static int
sock_new(BIO *bi)
{
	bi->init = 0;
	bi->num = 0;
	bi->ptr = NULL;
	bi->flags = 0;
	return (1);
}

static int
sock_free(BIO *a)
{
	if (a == NULL)
		return (0);
	if (a->shutdown) {
		if (a->init) {
			shutdown(a->num, SHUT_RDWR);
			close(a->num);
		}
		a->init = 0;
		a->flags = 0;
	}
	return (1);
}

static int
sock_read(BIO *b, char *out, int outl)
{
	int ret = 0;

	if (out != NULL) {
		errno = 0;
		ret = read(b->num, out, outl);
		BIO_clear_retry_flags(b);
		if (ret <= 0) {
			if (BIO_sock_should_retry(ret))
				BIO_set_retry_read(b);
		}
	}
	return (ret);
}

static int
sock_write(BIO *b, const char *in, int inl)
{
	int ret;

	errno = 0;
	ret = write(b->num, in, inl);
	BIO_clear_retry_flags(b);
	if (ret <= 0) {
		if (BIO_sock_should_retry(ret))
			BIO_set_retry_write(b);
	}
	return (ret);
}

static long
sock_ctrl(BIO *b, int cmd, long num, void *ptr)
{
	long ret = 1;
	int *ip;

	switch (cmd) {
	case BIO_C_SET_FD:
		sock_free(b);
		b->num= *((int *)ptr);
		b->shutdown = (int)num;
		b->init = 1;
		break;
	case BIO_C_GET_FD:
		if (b->init) {
			ip = (int *)ptr;
			if (ip != NULL)
				*ip = b->num;
			ret = b->num;
		} else
			ret = -1;
		break;
	case BIO_CTRL_GET_CLOSE:
		ret = b->shutdown;
		break;
	case BIO_CTRL_SET_CLOSE:
		b->shutdown = (int)num;
		break;
	case BIO_CTRL_DUP:
	case BIO_CTRL_FLUSH:
		ret = 1;
		break;
	default:
		ret = 0;
		break;
	}
	return (ret);
}

static int
sock_puts(BIO *bp, const char *str)
{
	int n, ret;

	n = strlen(str);
	ret = sock_write(bp, str, n);
	return (ret);
}

int
BIO_sock_should_retry(int i)
{
	int err;

	if ((i == 0) || (i == -1)) {
		err = errno;
		return (BIO_sock_non_fatal_error(err));
	}
	return (0);
}

int
BIO_sock_non_fatal_error(int err)
{
	switch (err) {
	case ENOTCONN:
	case EINTR:
	case EAGAIN:
	case EINPROGRESS:
	case EALREADY:
		return (1);
	default:
		break;
	}
	return (0);
}



Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: bss_sock.c,v 1.23 2014/07/11 08:44:47 jsing 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 <sys/socket.h>
60
61			#include <errno.h>
62			#include <stdio.h>
63			#include <string.h>
64			#include <unistd.h>
65
66			#include <openssl/bio.h>
67
68			static int sock_write(BIO h, const char buf, int num);
69			static int sock_read(BIO h, char buf, int size);
70			static int sock_puts(BIO h, const char str);
71			static long sock_ctrl(BIO h, int cmd, long arg1, void arg2);
72			static int sock_new(BIO *h);
73			static int sock_free(BIO *data);
74			int BIO_sock_should_retry(int s);
75
76			static BIO_METHOD methods_sockp = {
77			.type = BIO_TYPE_SOCKET,
78			.name = "socket",
79			.bwrite = sock_write,
80			.bread = sock_read,
81			.bputs = sock_puts,
82			.ctrl = sock_ctrl,
83			.create = sock_new,
84			.destroy = sock_free
85			};
86
87			BIO_METHOD *
88			BIO_s_socket(void)
89			{
90		56	return (&methods_sockp);
91			}
92
93			BIO *
94			BIO_new_socket(int fd, int close_flag)
95			{
96			BIO *ret;
97
98		8	ret = BIO_new(BIO_s_socket());
99	✗✓	4	if (ret == NULL)
100			return (NULL);
101		4	BIO_set_fd(ret, fd, close_flag);
102		4	return (ret);
103		4	}
104
105			static int
106			sock_new(BIO *bi)
107			{
108		56	bi->init = 0;
109		28	bi->num = 0;
110		28	bi->ptr = NULL;
111		28	bi->flags = 0;
112		28	return (1);
113			}
114
115			static int
116			sock_free(BIO *a)
117			{
118	✗✓	112	if (a == NULL)
119			return (0);
120	✓✓	56	if (a->shutdown) {
121	✓✓	30	if (a->init) {
122		2	shutdown(a->num, SHUT_RDWR);
123		2	close(a->num);
124		2	}
125		30	a->init = 0;
126		30	a->flags = 0;
127		30	}
128		56	return (1);
129		56	}
130
131			static int
132			sock_read(BIO b, char out, int outl)
133			{
134			int ret = 0;
135
136	✓✗	428	if (out != NULL) {
137		214	errno = 0;
138		214	ret = read(b->num, out, outl);
139		214	BIO_clear_retry_flags(b);
140	✓✓	214	if (ret <= 0) {
141	✓✗	24	if (BIO_sock_should_retry(ret))
142		24	BIO_set_retry_read(b);
143			}
144			}
145		214	return (ret);
146			}
147
148			static int
149			sock_write(BIO b, const char in, int inl)
150			{
151			int ret;
152
153		120	errno = 0;
154		60	ret = write(b->num, in, inl);
155		60	BIO_clear_retry_flags(b);
156	✗✓	60	if (ret <= 0) {
157			if (BIO_sock_should_retry(ret))
158			BIO_set_retry_write(b);
159			}
160		60	return (ret);
161			}
162
163			static long
164			sock_ctrl(BIO b, int cmd, long num, void ptr)
165			{
166			long ret = 1;
167			int *ip;
168
169	✓✓✗✗ ✗✓✓	284	switch (cmd) {
170			case BIO_C_SET_FD:
171		28	sock_free(b);
172		28	b->num= ((int )ptr);
173		28	b->shutdown = (int)num;
174		28	b->init = 1;
175		28	break;
176			case BIO_C_GET_FD:
177	✓✗	24	if (b->init) {
178		24	ip = (int *)ptr;
179	✓✓	24	if (ip != NULL)
180		8	*ip = b->num;
181		24	ret = b->num;
182		24	} else
183			ret = -1;
184			break;
185			case BIO_CTRL_GET_CLOSE:
186			ret = b->shutdown;
187			break;
188			case BIO_CTRL_SET_CLOSE:
189			b->shutdown = (int)num;
190			break;
191			case BIO_CTRL_DUP:
192			case BIO_CTRL_FLUSH:
193			ret = 1;
194		52	break;
195			default:
196			ret = 0;
197		38	break;
198			}
199		142	return (ret);
200			}
201
202			static int
203			sock_puts(BIO bp, const char str)
204			{
205			int n, ret;
206
207			n = strlen(str);
208			ret = sock_write(bp, str, n);
209			return (ret);
210			}
211
212			int
213			BIO_sock_should_retry(int i)
214			{
215			int err;
216
217	✓✓	15886	if ((i == 0) \|\| (i == -1)) {
218		24	err = errno;
219		24	return (BIO_sock_non_fatal_error(err));
220			}
221		7919	return (0);
222		7943	}
223
224			int
225			BIO_sock_non_fatal_error(int err)
226			{
227	✗✗✗✗ ✓✗	48	switch (err) {
228			case ENOTCONN:
229			case EINTR:
230			case EAGAIN:
231			case EINPROGRESS:
232			case EALREADY:
233		24	return (1);
234			default:
235			break;
236			}
237			return (0);
238		24	}
239