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cryb-to/lib/cpe/cryb_cpe_copy_attr.c

61 lines
2.2 KiB
C

/*-
* Copyright (c) 2014-2016 Dag-Erling Smørgrav
* All rights reserved.
*
* 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 above 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 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.
*/
#include "cryb/impl.h"
#include <unistd.h>
#include <wchar.h>
#include <cryb/wstring.h>
#include <cryb/cpe.h>
/*
* Copy one or more attributes from a source cpe structure to a
* destination cpe structure. If an attribute in the source is NULL, the
* corresponding attribute in the destination will be an empty string.
*/
int
cpe_copy_attr(cpe_name *dst, const cpe_name *src, int base, int nattr)
{
if (base < 0 || nattr < 0 || base + nattr > src->nattr ||
base + nattr > dst->nattr)
return (-1);
if (nattr == 0)
nattr = src->nattr - base;
for (int i = base; i < base + nattr; ++i) {
if (src->attr[i] != NULL)
dst->attr[i] = wcsdup(src->attr[i]);
else
dst->attr[i] = wcsdup(L"");
if (dst->attr[i] == NULL)
return (-1);
}
return (nattr);
}