filedup.c

Apache V2.0.15 Alpha For Linuxhttpd-2_0_15-alpha.tar.Z

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000-2001 The Apache Software Foundation.  All rights
 * reserved.
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 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
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 *    if and wherever such third-party acknowledgments normally appear.
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 * 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_file_io.h"
#include "apr_lib.h"
#include "apr_strings.h"
#include <string.h>

apr_status_t apr_file_dup(apr_file_t **new_file, apr_file_t *old_file, apr_pool_t *p)
{
    int rv;
    apr_file_t *dup_file;

    if (*new_file == NULL) {
        dup_file = (apr_file_t *)apr_palloc(p, sizeof(apr_file_t));

        if (dup_file == NULL) {
            return APR_ENOMEM;
        }

        dup_file->filedes = -1;
    } else {
      dup_file = *new_file;
    }

    dup_file->cntxt = p;
    rv = DosDupHandle(old_file->filedes, &dup_file->filedes);

    if (rv) {
        return APR_OS2_STATUS(rv);
    }

    dup_file->fname = apr_pstrdup(dup_file->cntxt, old_file->fname);
    dup_file->buffered = old_file->buffered;
    dup_file->isopen = old_file->isopen;
    dup_file->flags = old_file->flags;
    /* TODO - dup pipes correctly */
    dup_file->pipe = old_file->pipe;

    if (*new_file == NULL) {
        apr_pool_cleanup_register(dup_file->cntxt, dup_file, apr_file_cleanup,
                            apr_pool_cleanup_null);
        *new_file = dup_file;
    }

    return APR_SUCCESS;
}