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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2001 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 "win32/fileio.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include "apr_strings.h"
#include <string.h>
APR_DECLARE(apr_status_t) apr_file_dup(apr_file_t **new_file,
apr_file_t *old_file, apr_pool_t *p)
{
BOOLEAN isStdHandle = FALSE;
HANDLE hCurrentProcess = GetCurrentProcess();
if ((*new_file) == NULL) {
if (p == NULL) {
p = old_file->cntxt;
}
(*new_file) = (apr_file_t *) apr_pcalloc(p, sizeof(apr_file_t));
if ((*new_file) == NULL) {
return APR_ENOMEM;
}
if (!DuplicateHandle(hCurrentProcess, old_file->filehand,
hCurrentProcess,
&(*new_file)->filehand, 0, FALSE,
DUPLICATE_SAME_ACCESS)) {
return apr_get_os_error();
}
} else {
HANDLE hFile = (*new_file)->filehand;
/* dup2 is not supported with native Windows handles. We
* can, however, emulate dup2 for the standard i/o handles.
*/
if (hFile == GetStdHandle(STD_ERROR_HANDLE)) {
isStdHandle = TRUE;
if (!SetStdHandle(STD_ERROR_HANDLE, old_file->filehand))
return apr_get_os_error();
}
else if (hFile == GetStdHandle(STD_OUTPUT_HANDLE)) {
isStdHandle = TRUE;
if (!SetStdHandle(STD_OUTPUT_HANDLE, old_file->filehand))
return apr_get_os_error();
}
else if (hFile == GetStdHandle(STD_INPUT_HANDLE)) {
isStdHandle = TRUE;
if (!SetStdHandle(STD_INPUT_HANDLE, old_file->filehand))
return apr_get_os_error();
}
else
return APR_ENOTIMPL;
}
(*new_file)->flags = old_file->flags;
(*new_file)->cntxt = old_file->cntxt;
(*new_file)->fname = apr_pstrdup(old_file->cntxt, old_file->fname);
(*new_file)->append = old_file->append;
(*new_file)->buffered = FALSE;
if (!isStdHandle) {
apr_pool_cleanup_register((*new_file)->cntxt, (void *)(*new_file), file_cleanup,
apr_pool_cleanup_null);
}
return APR_SUCCESS;
}
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