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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/rpc/xdr_array.c	Lines:	0	30	0.0 %
Date:	2017-11-13	Branches:	0	25	0.0 %


/*	$OpenBSD: xdr_array.c,v 1.14 2017/01/21 08:29:13 krw 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_array.c, Generic XDR routines implementation.
 *
 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
 * arrays.  See xdr.h for more info on the interface to xdr.
 */



#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <rpc/types.h>
#include <rpc/xdr.h>

/*
 * XDR an array of arbitrary elements
 * *addrp is a pointer to the array, *sizep is the number of elements.
 * If addrp is NULL (*sizep * elsize) bytes are allocated.
 * elsize is the size (in bytes) of each element, and elproc is the
 * xdr procedure to call to handle each element of the array.
 */
bool_t
xdr_array(XDR *xdrs,
    caddr_t *addrp,	/* array pointer */
    u_int *sizep,	/* number of elements */
    u_int maxsize,	/* max numberof elements */
    u_int elsize,	/* size in bytes of each element */
    xdrproc_t elproc)	/* xdr routine to handle each element */
{
	caddr_t target = *addrp;
	u_int nodesize, c, i;
	bool_t stat = TRUE;

	/* like strings, arrays are really counted arrays */
	if (!xdr_u_int(xdrs, sizep))
		return (FALSE);

	c = *sizep;
	if ((c > maxsize || c > UINT_MAX/elsize) &&
	    xdrs->x_op != XDR_FREE)
		return (FALSE);
	nodesize = c * elsize;

	/*
	 * if we are deserializing, we may need to allocate an array.
	 * We also save time by checking for a null array if we are freeing.
	 */
	if (target == NULL) {
		switch (xdrs->x_op) {
		case XDR_DECODE:
			if (c == 0)
				return (TRUE);
			*addrp = target = mem_alloc(nodesize);
			if (target == NULL)
				return (FALSE);
			memset(target, 0, nodesize);
			break;
		case XDR_FREE:
			return (TRUE);
		default:
			break;
		}
	}

	/*
	 * now we xdr each element of array
	 */
	for (i = 0; (i < c) && stat; i++) {
		stat = (*elproc)(xdrs, target);
		target += elsize;
	}

	/*
	 * the array may need freeing
	 */
	if (xdrs->x_op == XDR_FREE) {
		mem_free(*addrp, nodesize);
		*addrp = NULL;
	}
	return (stat);
}
DEF_WEAK(xdr_array);

/*
 * xdr_vector():
 *
 * XDR a fixed length array. Unlike variable-length arrays,
 * the storage of fixed length arrays is static and unfreeable.
 * > basep: base of the array
 * > size: size of the array
 * > elemsize: size of each element
 * > xdr_elem: routine to XDR each element
 */
bool_t
xdr_vector(XDR *xdrs, char *basep, u_int nelem, u_int elemsize,
    xdrproc_t xdr_elem)
{
	char *elptr;
	u_int i;

	elptr = basep;
	for (i = 0; i < nelem; i++) {
		if (!(*xdr_elem)(xdrs, elptr))
			return(FALSE);
		elptr += elemsize;
	}
	return(TRUE);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: xdr_array.c,v 1.14 2017/01/21 08:29:13 krw 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_array.c, Generic XDR routines implementation.
36			*
37			* These are the "non-trivial" xdr primitives used to serialize and de-serialize
38			* arrays. See xdr.h for more info on the interface to xdr.
39			*/
40
41
42
43			#include <stdio.h>
44			#include <stdlib.h>
45			#include <string.h>
46			#include <limits.h>
47			#include <rpc/types.h>
48			#include <rpc/xdr.h>
49
50			/*
51			* XDR an array of arbitrary elements
52			* addrp is a pointer to the array, sizep is the number of elements.
53			* If addrp is NULL (sizep elsize) bytes are allocated.
54			* elsize is the size (in bytes) of each element, and elproc is the
55			* xdr procedure to call to handle each element of the array.
56			*/
57			bool_t
58			xdr_array(XDR *xdrs,
59			caddr_t addrp, / array pointer */
60			u_int sizep, / number of elements */
61			u_int maxsize, /* max numberof elements */
62			u_int elsize, /* size in bytes of each element */
63			xdrproc_t elproc) /* xdr routine to handle each element */
64			{
65			caddr_t target = *addrp;
66			u_int nodesize, c, i;
67			bool_t stat = TRUE;
68
69			/* like strings, arrays are really counted arrays */
70			if (!xdr_u_int(xdrs, sizep))
71			return (FALSE);
72
73			c = *sizep;
74			if ((c > maxsize \|\| c > UINT_MAX/elsize) &&
75			xdrs->x_op != XDR_FREE)
76			return (FALSE);
77			nodesize = c * elsize;
78
79			/*
80			* if we are deserializing, we may need to allocate an array.
81			* We also save time by checking for a null array if we are freeing.
82			*/
83			if (target == NULL) {
84			switch (xdrs->x_op) {
85			case XDR_DECODE:
86			if (c == 0)
87			return (TRUE);
88			*addrp = target = mem_alloc(nodesize);
89			if (target == NULL)
90			return (FALSE);
91			memset(target, 0, nodesize);
92			break;
93			case XDR_FREE:
94			return (TRUE);
95			default:
96			break;
97			}
98			}
99
100			/*
101			* now we xdr each element of array
102			*/
103			for (i = 0; (i < c) && stat; i++) {
104			stat = (*elproc)(xdrs, target);
105			target += elsize;
106			}
107
108			/*
109			* the array may need freeing
110			*/
111			if (xdrs->x_op == XDR_FREE) {
112			mem_free(*addrp, nodesize);
113			*addrp = NULL;
114			}
115			return (stat);
116			}
117			DEF_WEAK(xdr_array);
118
119			/*
120			* xdr_vector():
121			*
122			* XDR a fixed length array. Unlike variable-length arrays,
123			* the storage of fixed length arrays is static and unfreeable.
124			* > basep: base of the array
125			* > size: size of the array
126			* > elemsize: size of each element
127			* > xdr_elem: routine to XDR each element
128			*/
129			bool_t
130			xdr_vector(XDR xdrs, char basep, u_int nelem, u_int elemsize,
131			xdrproc_t xdr_elem)
132			{
133			char *elptr;
134			u_int i;
135
136			elptr = basep;
137			for (i = 0; i < nelem; i++) {
138			if (!(*xdr_elem)(xdrs, elptr))
139			return(FALSE);
140			elptr += elemsize;
141			}
142			return(TRUE);
143			}