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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/rpc/xdr_mem.c	Lines:	0	56	0.0 %
Date:	2017-11-13	Branches:	0	16	0.0 %


/*	$OpenBSD: xdr_mem.c,v 1.17 2015/11/01 03:45:29 guenther Exp $ */

/*
 * Copyright (c) 2010, Oracle America, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of the "Oracle America, Inc." nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "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
 *   COPYRIGHT HOLDER 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.
 */

/*
 * xdr_mem.h, XDR implementation using memory buffers.
 *
 * If you have some data to be interpreted as external data representation
 * or to be converted to external data representation in a memory buffer,
 * then this is the package for you.
 *
 */

#include <sys/types.h>
#include <netinet/in.h>
#include <string.h>

#include <rpc/types.h>
#include <rpc/xdr.h>

static bool_t	xdrmem_getlong_aligned(XDR *, long *);
static bool_t	xdrmem_putlong_aligned(XDR *, long *);
static bool_t	xdrmem_getlong_unaligned(XDR *, long *);
static bool_t	xdrmem_putlong_unaligned(XDR *, long *);
static bool_t	xdrmem_getbytes(XDR *, caddr_t, u_int);
static bool_t	xdrmem_putbytes(XDR *, caddr_t, u_int);
static u_int	xdrmem_getpos(XDR *); /* XXX w/64-bit pointers, u_int not enough! */
static bool_t	xdrmem_setpos(XDR *, u_int);
static int32_t *xdrmem_inline_aligned(XDR *, u_int);
static int32_t *xdrmem_inline_unaligned(XDR *, u_int);
static void	xdrmem_destroy(XDR *);

static struct	xdr_ops xdrmem_ops_aligned = {
	xdrmem_getlong_aligned,
	xdrmem_putlong_aligned,
	xdrmem_getbytes,
	xdrmem_putbytes,
	xdrmem_getpos,
	xdrmem_setpos,
	xdrmem_inline_aligned,
	xdrmem_destroy,
	NULL,	/* xdrmem_control */
};

static struct	xdr_ops xdrmem_ops_unaligned = {
	xdrmem_getlong_unaligned,
	xdrmem_putlong_unaligned,
	xdrmem_getbytes,
	xdrmem_putbytes,
	xdrmem_getpos,
	xdrmem_setpos,
	xdrmem_inline_unaligned,
	xdrmem_destroy,
	NULL,	/* xdrmem_control */
};

/*
 * The procedure xdrmem_create initializes a stream descriptor for a
 * memory buffer.
 */
void
xdrmem_create(XDR *xdrs, caddr_t addr, u_int size, enum xdr_op op)
{

	xdrs->x_op = op;
	xdrs->x_ops = ((size_t)addr & (sizeof(int32_t) - 1))
	    ? &xdrmem_ops_unaligned : &xdrmem_ops_aligned;
	xdrs->x_private = xdrs->x_base = addr;
	xdrs->x_handy = size;
}
DEF_WEAK(xdrmem_create);

static void
xdrmem_destroy(XDR *xdrs)
{
}

static bool_t
xdrmem_getlong_aligned(XDR *xdrs, long int *lp)
{

	if (xdrs->x_handy < sizeof(int32_t))
		return (FALSE);
	xdrs->x_handy -= sizeof(int32_t);
	*lp = ntohl(*(int32_t *)xdrs->x_private);
	xdrs->x_private += sizeof(int32_t);
	return (TRUE);
}

static bool_t
xdrmem_putlong_aligned(XDR *xdrs, long int *lp)
{

	if (xdrs->x_handy < sizeof(int32_t))
		return (FALSE);
	xdrs->x_handy -= sizeof(int32_t);
	*(int32_t *)xdrs->x_private = htonl((u_int32_t)*lp);
	xdrs->x_private += sizeof(int32_t);
	return (TRUE);
}

static bool_t
xdrmem_getlong_unaligned(XDR *xdrs, long int *lp)
{
	int32_t l;

	if (xdrs->x_handy < sizeof(int32_t))
		return (FALSE);
	xdrs->x_handy -= sizeof(int32_t);
	memcpy(&l, xdrs->x_private, sizeof(int32_t));
	*lp = ntohl(l);
	xdrs->x_private += sizeof(int32_t);
	return (TRUE);
}

static bool_t
xdrmem_putlong_unaligned(XDR *xdrs, long int *lp)
{
	int32_t l;

	if (xdrs->x_handy < sizeof(int32_t))
		return (FALSE);
	xdrs->x_handy -= sizeof(int32_t);
	l = htonl((u_int32_t)*lp);
	memcpy(xdrs->x_private, &l, sizeof(int32_t));
	xdrs->x_private += sizeof(int32_t);
	return (TRUE);
}

static bool_t
xdrmem_getbytes(XDR *xdrs, caddr_t addr, u_int len)
{

	if (xdrs->x_handy < len)
		return (FALSE);
	xdrs->x_handy -= len;
	memcpy(addr, xdrs->x_private, len);
	xdrs->x_private += len;
	return (TRUE);
}

static bool_t
xdrmem_putbytes(XDR *xdrs, caddr_t addr, u_int len)
{

	if (xdrs->x_handy < len)
		return (FALSE);
	xdrs->x_handy -= len;
	memcpy(xdrs->x_private, addr, len);
	xdrs->x_private += len;
	return (TRUE);
}

static u_int
xdrmem_getpos(XDR *xdrs)
{

	/* XXX w/64-bit pointers, u_int not enough! */
	return ((u_long)xdrs->x_private - (u_long)xdrs->x_base);
}

static bool_t
xdrmem_setpos(XDR *xdrs, u_int pos)
{
	caddr_t newaddr = xdrs->x_base + pos;
	caddr_t lastaddr = xdrs->x_private + xdrs->x_handy;

	if (newaddr > lastaddr)
		return (FALSE);
	xdrs->x_private = newaddr;
	xdrs->x_handy = (u_int)(lastaddr - newaddr);	/* XXX w/64-bit pointers, u_int not enough! */
	return (TRUE);
}

static int32_t *
xdrmem_inline_aligned(XDR *xdrs, u_int len)
{
	int32_t *buf = 0;

	if (xdrs->x_handy >= len) {
		xdrs->x_handy -= len;
		buf = (int32_t *)xdrs->x_private;
		xdrs->x_private += len;
	}
	return (buf);
}

static int32_t *
xdrmem_inline_unaligned(XDR *xdrs, u_int len)
{

	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: xdr_mem.c,v 1.17 2015/11/01 03:45:29 guenther Exp $ */
2
3			/*
4			* Copyright (c) 2010, Oracle America, Inc.
5			*
6			* Redistribution and use in source and binary forms, with or without
7			* modification, are permitted provided that the following conditions are
8			* met:
9			*
10			* * Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* * Redistributions in binary form must reproduce the above
13			* copyright notice, this list of conditions and the following
14			* disclaimer in the documentation and/or other materials
15			* provided with the distribution.
16			* * Neither the name of the "Oracle America, Inc." nor the names of its
17			* contributors may be used to endorse or promote products derived
18			* from this software without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21			* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22			* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23			* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24			* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25			* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27			* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28			* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29			* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30			* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31			* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32			*/
33
34			/*
35			* xdr_mem.h, XDR implementation using memory buffers.
36			*
37			* If you have some data to be interpreted as external data representation
38			* or to be converted to external data representation in a memory buffer,
39			* then this is the package for you.
40			*
41			*/
42
43			#include <sys/types.h>
44			#include <netinet/in.h>
45			#include <string.h>
46
47			#include <rpc/types.h>
48			#include <rpc/xdr.h>
49
50			static bool_t xdrmem_getlong_aligned(XDR , long );
51			static bool_t xdrmem_putlong_aligned(XDR , long );
52			static bool_t xdrmem_getlong_unaligned(XDR , long );
53			static bool_t xdrmem_putlong_unaligned(XDR , long );
54			static bool_t xdrmem_getbytes(XDR *, caddr_t, u_int);
55			static bool_t xdrmem_putbytes(XDR *, caddr_t, u_int);
56			static u_int xdrmem_getpos(XDR ); / XXX w/64-bit pointers, u_int not enough! */
57			static bool_t xdrmem_setpos(XDR *, u_int);
58			static int32_t xdrmem_inline_aligned(XDR , u_int);
59			static int32_t xdrmem_inline_unaligned(XDR , u_int);
60			static void xdrmem_destroy(XDR *);
61
62			static struct xdr_ops xdrmem_ops_aligned = {
63			xdrmem_getlong_aligned,
64			xdrmem_putlong_aligned,
65			xdrmem_getbytes,
66			xdrmem_putbytes,
67			xdrmem_getpos,
68			xdrmem_setpos,
69			xdrmem_inline_aligned,
70			xdrmem_destroy,
71			NULL, /* xdrmem_control */
72			};
73
74			static struct xdr_ops xdrmem_ops_unaligned = {
75			xdrmem_getlong_unaligned,
76			xdrmem_putlong_unaligned,
77			xdrmem_getbytes,
78			xdrmem_putbytes,
79			xdrmem_getpos,
80			xdrmem_setpos,
81			xdrmem_inline_unaligned,
82			xdrmem_destroy,
83			NULL, /* xdrmem_control */
84			};
85
86			/*
87			* The procedure xdrmem_create initializes a stream descriptor for a
88			* memory buffer.
89			*/
90			void
91			xdrmem_create(XDR *xdrs, caddr_t addr, u_int size, enum xdr_op op)
92			{
93
94			xdrs->x_op = op;
95			xdrs->x_ops = ((size_t)addr & (sizeof(int32_t) - 1))
96			? &xdrmem_ops_unaligned : &xdrmem_ops_aligned;
97			xdrs->x_private = xdrs->x_base = addr;
98			xdrs->x_handy = size;
99			}
100			DEF_WEAK(xdrmem_create);
101
102			static void
103			xdrmem_destroy(XDR *xdrs)
104			{
105			}
106
107			static bool_t
108			xdrmem_getlong_aligned(XDR xdrs, long int lp)
109			{
110
111			if (xdrs->x_handy < sizeof(int32_t))
112			return (FALSE);
113			xdrs->x_handy -= sizeof(int32_t);
114			lp = ntohl((int32_t *)xdrs->x_private);
115			xdrs->x_private += sizeof(int32_t);
116			return (TRUE);
117			}
118
119			static bool_t
120			xdrmem_putlong_aligned(XDR xdrs, long int lp)
121			{
122
123			if (xdrs->x_handy < sizeof(int32_t))
124			return (FALSE);
125			xdrs->x_handy -= sizeof(int32_t);
126			(int32_t )xdrs->x_private = htonl((u_int32_t)*lp);
127			xdrs->x_private += sizeof(int32_t);
128			return (TRUE);
129			}
130
131			static bool_t
132			xdrmem_getlong_unaligned(XDR xdrs, long int lp)
133			{
134			int32_t l;
135
136			if (xdrs->x_handy < sizeof(int32_t))
137			return (FALSE);
138			xdrs->x_handy -= sizeof(int32_t);
139			memcpy(&l, xdrs->x_private, sizeof(int32_t));
140			*lp = ntohl(l);
141			xdrs->x_private += sizeof(int32_t);
142			return (TRUE);
143			}
144
145			static bool_t
146			xdrmem_putlong_unaligned(XDR xdrs, long int lp)
147			{
148			int32_t l;
149
150			if (xdrs->x_handy < sizeof(int32_t))
151			return (FALSE);
152			xdrs->x_handy -= sizeof(int32_t);
153			l = htonl((u_int32_t)*lp);
154			memcpy(xdrs->x_private, &l, sizeof(int32_t));
155			xdrs->x_private += sizeof(int32_t);
156			return (TRUE);
157			}
158
159			static bool_t
160			xdrmem_getbytes(XDR *xdrs, caddr_t addr, u_int len)
161			{
162
163			if (xdrs->x_handy < len)
164			return (FALSE);
165			xdrs->x_handy -= len;
166			memcpy(addr, xdrs->x_private, len);
167			xdrs->x_private += len;
168			return (TRUE);
169			}
170
171			static bool_t
172			xdrmem_putbytes(XDR *xdrs, caddr_t addr, u_int len)
173			{
174
175			if (xdrs->x_handy < len)
176			return (FALSE);
177			xdrs->x_handy -= len;
178			memcpy(xdrs->x_private, addr, len);
179			xdrs->x_private += len;
180			return (TRUE);
181			}
182
183			static u_int
184			xdrmem_getpos(XDR *xdrs)
185			{
186
187			/* XXX w/64-bit pointers, u_int not enough! */
188			return ((u_long)xdrs->x_private - (u_long)xdrs->x_base);
189			}
190
191			static bool_t
192			xdrmem_setpos(XDR *xdrs, u_int pos)
193			{
194			caddr_t newaddr = xdrs->x_base + pos;
195			caddr_t lastaddr = xdrs->x_private + xdrs->x_handy;
196
197			if (newaddr > lastaddr)
198			return (FALSE);
199			xdrs->x_private = newaddr;
200			xdrs->x_handy = (u_int)(lastaddr - newaddr); /* XXX w/64-bit pointers, u_int not enough! */
201			return (TRUE);
202			}
203
204			static int32_t *
205			xdrmem_inline_aligned(XDR *xdrs, u_int len)
206			{
207			int32_t *buf = 0;
208
209			if (xdrs->x_handy >= len) {
210			xdrs->x_handy -= len;
211			buf = (int32_t *)xdrs->x_private;
212			xdrs->x_private += len;
213			}
214			return (buf);
215			}
216
217			static int32_t *
218			xdrmem_inline_unaligned(XDR *xdrs, u_int len)
219			{
220
221			return (0);
222			}