os.c revision 7b387354d5836262c2d68e3d887f03276ab5a2d5
/* ====================================================================
* Copyright (c) 1998-1999 The Apache Group. 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" 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 names without prior written
* permission of the Apache Group.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``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 GROUP 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 Group and was originally based
* on public domain software written at the National Center for
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
/*
* This file will include OS specific functions which are not inlineable.
* Any inlineable functions should be defined in os-inline.c instead.
*/
#include "httpd.h"
#include "http_core.h"
#include "os.h"
/* Check the Content-Type to decide if conversion is needed */
int ap_checkconv(struct request_rec *r)
{
int convert_to_ascii;
const char *type;
/* To make serving of "raw ASCII text" files easy (they serve faster
* since they don't have to be converted from EBCDIC), a new
* "magic" type prefix was invented: text/x-ascii-{plain,html,...}
* If we detect one of these content types here, we simply correct
* the type to the real text/{plain,html,...} type. Otherwise, we
* set a flag that translation is required later on.
*/
type = (r->content_type == NULL) ? ap_default_type(r) : r->content_type;
/* If no content type is set then treat it as (ebcdic) text/plain */
convert_to_ascii = (type == NULL);
/* Conversion is applied to text/ files only, if ever. */
if (type && (strncasecmp(type, "text/", 5) == 0 ||
strncasecmp(type, "message/", 8) == 0)) {
if (strncasecmp(type, ASCIITEXT_MAGIC_TYPE_PREFIX,
sizeof(ASCIITEXT_MAGIC_TYPE_PREFIX)-1) == 0)
r->content_type = ap_pstrcat(r->pool, "text/",
type+sizeof(ASCIITEXT_MAGIC_TYPE_PREFIX)-1,
NULL);
else
/* translate EBCDIC to ASCII */
convert_to_ascii = 1;
}
/* Enable conversion if it's a text document */
ap_bsetflag(r->connection->client, B_EBCDIC2ASCII, convert_to_ascii);
return convert_to_ascii;
}