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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. 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 end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#include "apr_private.h"
#include "apr_arch_misc.h"
#include "apr_arch_file_io.h"
#include <crtdbg.h>
#include <assert.h>
/* This module is the source of -static- helper functions that are
* entirely internal to apr. If the fn is exported - it does not
* belong here.
*
* Namespace decoration is still required to protect us from symbol
* clashes in static linkages.
*/
/* Shared by apr_app.c and start.c
*
* An internal apr function to convert an array of strings (either
* a counted or NULL terminated list, such as an argv[argc] or env[]
* list respectively) from wide Unicode strings to narrow utf-8 strings.
* These are allocated from the MSVCRT's _CRT_BLOCK to trick the system
* into trusting our store.
*/
int apr_wastrtoastr(char const * const * *retarr,
wchar_t const * const *arr, int args)
{
apr_size_t elesize = 0;
char **newarr;
char *elements;
char *ele;
int arg;
if (args < 0) {
for (args = 0; arr[args]; ++args)
;
}
newarr = _malloc_dbg((args + 1) * sizeof(char *),
_CRT_BLOCK, __FILE__, __LINE__);
for (arg = 0; arg < args; ++arg) {
newarr[arg] = (void*)(wcslen(arr[arg]) + 1);
elesize += (apr_size_t)newarr[arg];
}
/* This is a safe max allocation, we will realloc after
* processing and return the excess to the free store.
* 3 ucs bytes hold any single wchar_t value (16 bits)
* 4 ucs bytes will hold a wchar_t pair value (20 bits)
*/
elesize = elesize * 3 + 1;
ele = elements = _malloc_dbg(elesize * sizeof(char),
_CRT_BLOCK, __FILE__, __LINE__);
for (arg = 0; arg < args; ++arg) {
apr_size_t len = (apr_size_t)newarr[arg];
apr_size_t newlen = elesize;
newarr[arg] = ele;
(void)apr_conv_ucs2_to_utf8(arr[arg], &len,
newarr[arg], &elesize);
newlen -= elesize;
ele += newlen;
assert(elesize && (len == 0));
}
newarr[arg] = NULL;
*(ele++) = '\0';
/* Return to the free store if the heap realloc is the least bit optimized
*/
ele = _realloc_dbg(elements, ele - elements,
_CRT_BLOCK, __FILE__, __LINE__);
if (ele != elements) {
apr_size_t diff = ele - elements;
for (arg = 0; arg < args; ++arg) {
newarr[arg] += diff;
}
}
*retarr = newarr;
return args;
}
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