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70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __FS_H__
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#define __FS_H__
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#include "lwip/opt.h"
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/** HTTPD_PRECALCULATED_CHECKSUM==1: include precompiled checksums for
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* predefined (MSS-sized) chunks of the files to prevent having to calculate
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* the checksums at runtime. */
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#ifndef HTTPD_PRECALCULATED_CHECKSUM
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#define HTTPD_PRECALCULATED_CHECKSUM 0
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#endif
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#if HTTPD_PRECALCULATED_CHECKSUM
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struct fsdata_chksum {
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u32_t offset;
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u16_t chksum;
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u16_t len;
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};
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#endif /* HTTPD_PRECALCULATED_CHECKSUM */
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struct fs_file {
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const char *data;
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int len;
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int index;
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void *pextension;
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#if HTTPD_PRECALCULATED_CHECKSUM
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const struct fsdata_chksum *chksum;
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u16_t chksum_count;
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#endif /* HTTPD_PRECALCULATED_CHECKSUM */
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u8_t http_header_included;
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};
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struct fs_file *fs_open(const char *name);
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void fs_close(struct fs_file *file);
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int fs_read(struct fs_file *file, char *buffer, int count);
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int fs_bytes_left(struct fs_file *file);
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#endif /* __FS_H__ */
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