97 lines
2.9 KiB
C
Vendored
97 lines
2.9 KiB
C
Vendored
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
* SPDX-License-Identifier: curl
|
|
*
|
|
***************************************************************************/
|
|
#include "curl_setup.h"
|
|
|
|
#ifdef _WIN32
|
|
#include <wchar.h>
|
|
#endif
|
|
|
|
#include "curlx/strdup.h"
|
|
|
|
#ifdef _WIN32
|
|
/***************************************************************************
|
|
*
|
|
* curlx_wcsdup(source)
|
|
*
|
|
* Copies the 'source' wchar string to a newly allocated buffer (that is
|
|
* returned). Used by macro curlx_tcsdup().
|
|
*
|
|
* Returns the new pointer or NULL on failure.
|
|
*
|
|
***************************************************************************/
|
|
wchar_t *curlx_wcsdup(const wchar_t *src)
|
|
{
|
|
size_t length = wcslen(src);
|
|
|
|
if(length > (SIZE_MAX / sizeof(wchar_t)) - 1)
|
|
return (wchar_t *)NULL; /* integer overflow */
|
|
|
|
return (wchar_t *)curlx_memdup(src, (length + 1) * sizeof(wchar_t));
|
|
}
|
|
#endif
|
|
|
|
/***************************************************************************
|
|
*
|
|
* curlx_memdup(source, length)
|
|
*
|
|
* Copies the 'source' data to a newly allocated buffer (that is
|
|
* returned). Copies 'length' bytes.
|
|
*
|
|
* Returns the new pointer or NULL on failure.
|
|
*
|
|
***************************************************************************/
|
|
void *curlx_memdup(const void *src, size_t length)
|
|
{
|
|
void *buffer = curlx_malloc(length);
|
|
if(!buffer)
|
|
return NULL; /* fail */
|
|
|
|
memcpy(buffer, src, length);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* curlx_memdup0(source, length)
|
|
*
|
|
* Copies the 'source' string to a newly allocated buffer (that is returned).
|
|
* Copies 'length' bytes then adds a null-terminator.
|
|
*
|
|
* Returns the new pointer or NULL on failure.
|
|
*
|
|
***************************************************************************/
|
|
void *curlx_memdup0(const char *src, size_t length)
|
|
{
|
|
char *buf = (length < SIZE_MAX) ? curlx_malloc(length + 1) : NULL;
|
|
if(!buf)
|
|
return NULL;
|
|
if(length) {
|
|
DEBUGASSERT(src); /* must never be NULL */
|
|
memcpy(buf, src, length);
|
|
}
|
|
buf[length] = 0;
|
|
return buf;
|
|
}
|