Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/bio/bss_file.c	Lines:	79	104	76.0 %
Date:	2017-11-13	Branches:	34	63	54.0 %


/* $OpenBSD: bss_file.c,v 1.32 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.]
 */

/*
 * 03-Dec-1997	rdenny@dc3.com  Fix bug preventing use of stdin/stdout
 *		with binary data (e.g. asn1parse -inform DER < xxx) under
 *		Windows
 */

#ifndef HEADER_BSS_FILE_C
#define HEADER_BSS_FILE_C

#if defined(__linux) || defined(__sun) || defined(__hpux)
/* Following definition aliases fopen to fopen64 on above mentioned
 * platforms. This makes it possible to open and sequentially access
 * files larger than 2GB from 32-bit application. It does not allow to
 * traverse them beyond 2GB with fseek/ftell, but on the other hand *no*
 * 32-bit platform permits that, not with fseek/ftell. Not to mention
 * that breaking 2GB limit for seeking would require surgery to *our*
 * API. But sequential access suffices for practical cases when you
 * can run into large files, such as fingerprinting, so we can let API
 * alone. For reference, the list of 32-bit platforms which allow for
 * sequential access of large files without extra "magic" comprise *BSD,
 * Darwin, IRIX...
 */
#ifndef _FILE_OFFSET_BITS
#define _FILE_OFFSET_BITS 64
#endif
#endif

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

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

static int file_write(BIO *h, const char *buf, int num);
static int file_read(BIO *h, char *buf, int size);
static int file_puts(BIO *h, const char *str);
static int file_gets(BIO *h, char *str, int size);
static long file_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int file_new(BIO *h);
static int file_free(BIO *data);

static BIO_METHOD methods_filep = {
	.type = BIO_TYPE_FILE,
	.name = "FILE pointer",
	.bwrite = file_write,
	.bread = file_read,
	.bputs = file_puts,
	.bgets = file_gets,
	.ctrl = file_ctrl,
	.create = file_new,
	.destroy = file_free
};

BIO *
BIO_new_file(const char *filename, const char *mode)
{
	BIO  *ret;
	FILE *file = NULL;

	file = fopen(filename, mode);

	if (file == NULL) {
		SYSerror(errno);
		ERR_asprintf_error_data("fopen('%s', '%s')", filename, mode);
		if (errno == ENOENT)
			BIOerror(BIO_R_NO_SUCH_FILE);
		else
			BIOerror(ERR_R_SYS_LIB);
		return (NULL);
	}
	if ((ret = BIO_new(BIO_s_file())) == NULL) {
		fclose(file);
		return (NULL);
	}

	BIO_set_fp(ret, file, BIO_CLOSE);
	return (ret);
}

BIO *
BIO_new_fp(FILE *stream, int close_flag)
{
	BIO *ret;

	if ((ret = BIO_new(BIO_s_file())) == NULL)
		return (NULL);

	BIO_set_fp(ret, stream, close_flag);
	return (ret);
}

BIO_METHOD *
BIO_s_file(void)
{
	return (&methods_filep);
}

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

static int
file_free(BIO *a)
{
	if (a == NULL)
		return (0);
	if (a->shutdown) {
		if ((a->init) && (a->ptr != NULL)) {
			fclose (a->ptr);
			a->ptr = NULL;
			a->flags = 0;
		}
		a->init = 0;
	}
	return (1);
}

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

	if (b->init && out != NULL) {
		ret = fread(out, 1, outl, (FILE *)b->ptr);
		if (ret == 0 && ferror((FILE *)b->ptr)) {
			SYSerror(errno);
			BIOerror(ERR_R_SYS_LIB);
			ret = -1;
		}
	}
	return (ret);
}

static int
file_write(BIO *b, const char *in, int inl)
{
	int ret = 0;

	if (b->init && in != NULL)
		ret = fwrite(in, 1, inl, (FILE *)b->ptr);
	return (ret);
}

static long
file_ctrl(BIO *b, int cmd, long num, void *ptr)
{
	long ret = 1;
	FILE *fp = (FILE *)b->ptr;
	FILE **fpp;
	char p[4];

	switch (cmd) {
	case BIO_C_FILE_SEEK:
	case BIO_CTRL_RESET:
		ret = (long)fseek(fp, num, 0);
		break;
	case BIO_CTRL_EOF:
		ret = (long)feof(fp);
		break;
	case BIO_C_FILE_TELL:
	case BIO_CTRL_INFO:
		ret = ftell(fp);
		break;
	case BIO_C_SET_FILE_PTR:
		file_free(b);
		b->shutdown = (int)num&BIO_CLOSE;
		b->ptr = ptr;
		b->init = 1;
		break;
	case BIO_C_SET_FILENAME:
		file_free(b);
		b->shutdown = (int)num&BIO_CLOSE;
		if (num & BIO_FP_APPEND) {
			if (num & BIO_FP_READ)
				strlcpy(p, "a+", sizeof p);
			else	strlcpy(p, "a", sizeof p);
		} else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE))
			strlcpy(p, "r+", sizeof p);
		else if (num & BIO_FP_WRITE)
			strlcpy(p, "w", sizeof p);
		else if (num & BIO_FP_READ)
			strlcpy(p, "r", sizeof p);
		else {
			BIOerror(BIO_R_BAD_FOPEN_MODE);
			ret = 0;
			break;
		}
		fp = fopen(ptr, p);
		if (fp == NULL) {
			SYSerror(errno);
			ERR_asprintf_error_data("fopen('%s', '%s')", ptr, p);
			BIOerror(ERR_R_SYS_LIB);
			ret = 0;
			break;
		}
		b->ptr = fp;
		b->init = 1;
		break;
	case BIO_C_GET_FILE_PTR:
		/* the ptr parameter is actually a FILE ** in this case. */
		if (ptr != NULL) {
			fpp = (FILE **)ptr;
			*fpp = (FILE *)b->ptr;
		}
		break;
	case BIO_CTRL_GET_CLOSE:
		ret = (long)b->shutdown;
		break;
	case BIO_CTRL_SET_CLOSE:
		b->shutdown = (int)num;
		break;
	case BIO_CTRL_FLUSH:
		fflush((FILE *)b->ptr);
		break;
	case BIO_CTRL_DUP:
		ret = 1;
		break;

	case BIO_CTRL_WPENDING:
	case BIO_CTRL_PENDING:
	case BIO_CTRL_PUSH:
	case BIO_CTRL_POP:
	default:
		ret = 0;
		break;
	}
	return (ret);
}

static int
file_gets(BIO *bp, char *buf, int size)
{
	int ret = 0;

	buf[0] = '\0';
	if (!fgets(buf, size,(FILE *)bp->ptr))
		goto err;
	if (buf[0] != '\0')
		ret = strlen(buf);
err:
	return (ret);
}

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

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


#endif /* HEADER_BSS_FILE_C */


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: bss_file.c,v 1.32 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			/*
60			* 03-Dec-1997 rdenny@dc3.com Fix bug preventing use of stdin/stdout
61			* with binary data (e.g. asn1parse -inform DER < xxx) under
62			* Windows
63			*/
64
65			#ifndef HEADER_BSS_FILE_C
66			#define HEADER_BSS_FILE_C
67
68			#if defined(__linux) \|\| defined(__sun) \|\| defined(__hpux)
69			/* Following definition aliases fopen to fopen64 on above mentioned
70			* platforms. This makes it possible to open and sequentially access
71			* files larger than 2GB from 32-bit application. It does not allow to
72			* traverse them beyond 2GB with fseek/ftell, but on the other hand no
73			* 32-bit platform permits that, not with fseek/ftell. Not to mention
74			* that breaking 2GB limit for seeking would require surgery to our
75			* API. But sequential access suffices for practical cases when you
76			* can run into large files, such as fingerprinting, so we can let API
77			* alone. For reference, the list of 32-bit platforms which allow for
78			* sequential access of large files without extra "magic" comprise *BSD,
79			* Darwin, IRIX...
80			*/
81			#ifndef _FILE_OFFSET_BITS
82			#define _FILE_OFFSET_BITS 64
83			#endif
84			#endif
85
86			#include <errno.h>
87			#include <stdio.h>
88			#include <string.h>
89
90			#include <openssl/bio.h>
91			#include <openssl/err.h>
92
93			static int file_write(BIO h, const char buf, int num);
94			static int file_read(BIO h, char buf, int size);
95			static int file_puts(BIO h, const char str);
96			static int file_gets(BIO h, char str, int size);
97			static long file_ctrl(BIO h, int cmd, long arg1, void arg2);
98			static int file_new(BIO *h);
99			static int file_free(BIO *data);
100
101			static BIO_METHOD methods_filep = {
102			.type = BIO_TYPE_FILE,
103			.name = "FILE pointer",
104			.bwrite = file_write,
105			.bread = file_read,
106			.bputs = file_puts,
107			.bgets = file_gets,
108			.ctrl = file_ctrl,
109			.create = file_new,
110			.destroy = file_free
111			};
112
113			BIO *
114			BIO_new_file(const char filename, const char mode)
115			{
116			BIO *ret;
117			FILE *file = NULL;
118
119		3812	file = fopen(filename, mode);
120
121	✓✓	1906	if (file == NULL) {
122		2	SYSerror(errno);
123		2	ERR_asprintf_error_data("fopen('%s', '%s')", filename, mode);
124	✓✗	2	if (errno == ENOENT)
125		2	BIOerror(BIO_R_NO_SUCH_FILE);
126			else
127			BIOerror(ERR_R_SYS_LIB);
128		2	return (NULL);
129			}
130	✗✓	1904	if ((ret = BIO_new(BIO_s_file())) == NULL) {
131			fclose(file);
132			return (NULL);
133			}
134
135		1904	BIO_set_fp(ret, file, BIO_CLOSE);
136		1904	return (ret);
137		1906	}
138
139			BIO *
140			BIO_new_fp(FILE *stream, int close_flag)
141			{
142			BIO *ret;
143
144	✗✓	3636	if ((ret = BIO_new(BIO_s_file())) == NULL)
145			return (NULL);
146
147		1818	BIO_set_fp(ret, stream, close_flag);
148		1818	return (ret);
149		1818	}
150
151			BIO_METHOD *
152			BIO_s_file(void)
153			{
154		13998	return (&methods_filep);
155			}
156
157			static int
158			file_new(BIO *bi)
159			{
160		13998	bi->init = 0;
161		6999	bi->num = 0;
162		6999	bi->ptr = NULL;
163		6999	bi->flags=0;
164		6999	return (1);
165			}
166
167			static int
168			file_free(BIO *a)
169			{
170	✗✓	27918	if (a == NULL)
171			return (0);
172	✓✓	13959	if (a->shutdown) {
173	✓✓✓✗	14643	if ((a->init) && (a->ptr != NULL)) {
174		3821	fclose (a->ptr);
175		3821	a->ptr = NULL;
176		3821	a->flags = 0;
177		3821	}
178		10822	a->init = 0;
179		10822	}
180		13959	return (1);
181		13959	}
182
183			static int
184			file_read(BIO b, char out, int outl)
185			{
186			int ret = 0;
187
188	✓✗	7308	if (b->init && out != NULL) {
189		3654	ret = fread(out, 1, outl, (FILE *)b->ptr);
190	✓✓✓✗ ✗✓✗✗	5114	if (ret == 0 && ferror((FILE *)b->ptr)) {
191			SYSerror(errno);
192			BIOerror(ERR_R_SYS_LIB);
193			ret = -1;
194			}
195			}
196		3654	return (ret);
197			}
198
199			static int
200			file_write(BIO b, const char in, int inl)
201			{
202			int ret = 0;
203
204	✓✗	5211104	if (b->init && in != NULL)
205		2605552	ret = fwrite(in, 1, inl, (FILE *)b->ptr);
206		2605552	return (ret);
207			}
208
209			static long
210			file_ctrl(BIO b, int cmd, long num, void ptr)
211			{
212			long ret = 1;
213		68882	FILE fp = (FILE )b->ptr;
214			FILE **fpp;
215		34441	char p[4];
216
217	✗✓✗✗ ✗✓✓✗ ✗✗✓✗ ✓	34441	switch (cmd) {
218			case BIO_C_FILE_SEEK:
219			case BIO_CTRL_RESET:
220		90	ret = (long)fseek(fp, num, 0);
221		90	break;
222			case BIO_CTRL_EOF:
223			ret = (long)feof(fp);
224			break;
225			case BIO_C_FILE_TELL:
226			case BIO_CTRL_INFO:
227			ret = ftell(fp);
228			break;
229			case BIO_C_SET_FILE_PTR:
230		5062	file_free(b);
231		5062	b->shutdown = (int)num&BIO_CLOSE;
232		5062	b->ptr = ptr;
233		5062	b->init = 1;
234		5062	break;
235			case BIO_C_SET_FILENAME:
236		1907	file_free(b);
237		1907	b->shutdown = (int)num&BIO_CLOSE;
238	✗✓	1907	if (num & BIO_FP_APPEND) {
239			if (num & BIO_FP_READ)
240			strlcpy(p, "a+", sizeof p);
241			else strlcpy(p, "a", sizeof p);
242	✓✓✗✓	3112	} else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE))
243			strlcpy(p, "r+", sizeof p);
244	✓✓	1907	else if (num & BIO_FP_WRITE)
245		702	strlcpy(p, "w", sizeof p);
246	✓✗	1205	else if (num & BIO_FP_READ)
247		1205	strlcpy(p, "r", sizeof p);
248			else {
249			BIOerror(BIO_R_BAD_FOPEN_MODE);
250			ret = 0;
251			break;
252			}
253		1907	fp = fopen(ptr, p);
254	✓✓	1907	if (fp == NULL) {
255		2	SYSerror(errno);
256		2	ERR_asprintf_error_data("fopen('%s', '%s')", ptr, p);
257		2	BIOerror(ERR_R_SYS_LIB);
258			ret = 0;
259		2	break;
260			}
261		1905	b->ptr = fp;
262		1905	b->init = 1;
263		1905	break;
264			case BIO_C_GET_FILE_PTR:
265			/* the ptr parameter is actually a FILE ** in this case. */
266			if (ptr != NULL) {
267			fpp = (FILE **)ptr;
268			fpp = (FILE )b->ptr;
269			}
270			break;
271			case BIO_CTRL_GET_CLOSE:
272			ret = (long)b->shutdown;
273			break;
274			case BIO_CTRL_SET_CLOSE:
275			b->shutdown = (int)num;
276			break;
277			case BIO_CTRL_FLUSH:
278		26244	fflush((FILE *)b->ptr);
279		26244	break;
280			case BIO_CTRL_DUP:
281			ret = 1;
282			break;
283
284			case BIO_CTRL_WPENDING:
285			case BIO_CTRL_PENDING:
286			case BIO_CTRL_PUSH:
287			case BIO_CTRL_POP:
288			default:
289			ret = 0;
290		1138	break;
291			}
292		34441	return (ret);
293		34441	}
294
295			static int
296			file_gets(BIO bp, char buf, int size)
297			{
298			int ret = 0;
299
300		1075302	buf[0] = '\0';
301	✓✓	537651	if (!fgets(buf, size,(FILE *)bp->ptr))
302			goto err;
303	✓✗	535801	if (buf[0] != '\0')
304		535801	ret = strlen(buf);
305			err:
306		537651	return (ret);
307			}
308
309			static int
310			file_puts(BIO bp, const char str)
311			{
312			int n, ret;
313
314		126544	n = strlen(str);
315		63272	ret = file_write(bp, str, n);
316		63272	return (ret);
317			}
318
319
320			#endif /* HEADER_BSS_FILE_C */