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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 "fileio.h"
#include "apr_strings.h"
#include "apr_portable.h"
apr_status_t apr_file_dup(apr_file_t **new_file, apr_file_t *old_file, apr_pool_t *p)
{
int have_file = 0;
if ((*new_file) == NULL) {
(*new_file) = (apr_file_t *)apr_pcalloc(p, sizeof(apr_file_t));
if ((*new_file) == NULL) {
return APR_ENOMEM;
}
} else {
have_file = 1;
}
(*new_file)->cntxt = p;
if (have_file) {
dup2(old_file->filedes, (*new_file)->filedes);
}
else {
(*new_file)->filedes = dup(old_file->filedes);
}
(*new_file)->fname = apr_pstrdup(p, old_file->fname);
(*new_file)->buffered = old_file->buffered;
if ((*new_file)->buffered) {
#if APR_HAS_THREADS
apr_lock_create(&((*new_file)->thlock), APR_MUTEX, APR_INTRAPROCESS, NULL,
p);
#endif
(*new_file)->buffer = apr_palloc(p, APR_FILE_BUFSIZE);
}
(*new_file)->blocking = old_file->blocking; /* this is the way dup() works */
apr_pool_cleanup_register((*new_file)->cntxt, (void *)(*new_file), apr_unix_file_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
}
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