blob: a66eb8dc3030f6cba048db5185676237876f0d7b [file] [log] [blame]
/**
* \addtogroup httpd
* @{
*/
/**
* \file
* HTTP server read-only file system code.
* \author Adam Dunkels <adam@dunkels.com>
*
* A simple read-only filesystem.
*/
/*
* Copyright (c) 2001, Swedish Institute of Computer Science.
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 INSTITUTE OR 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 file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
* $Id: fs.c,v 1.7.2.3 2003/10/07 13:22:27 adam Exp $
*/
#include "uip.h"
#include "httpd.h"
#include "fs.h"
#include "fsdata.h"
#define NULL (void *)0
#include "fsdata.c"
#ifdef FS_STATISTICS
#if FS_STATISTICS == 1
static u16_t count[FS_NUMFILES];
#endif /* FS_STATISTICS */
#endif /* FS_STATISTICS */
/*-----------------------------------------------------------------------------------*/
static u8_t
fs_strcmp(const char *str1, const char *str2)
{
u8_t i;
i = 0;
loop:
if(str2[i] == 0 ||
str1[i] == '\r' ||
str1[i] == '\n') {
return 0;
}
if(str1[i] != str2[i]) {
return 1;
}
++i;
goto loop;
}
/*-----------------------------------------------------------------------------------*/
int
fs_open(const char *name, struct fs_file *file)
{
#ifdef FS_STATISTICS
#if FS_STATISTICS == 1
u16_t i = 0;
#endif /* FS_STATISTICS */
#endif /* FS_STATISTICS */
struct fsdata_file_noconst *f;
for(f = (struct fsdata_file_noconst *)FS_ROOT;
f != NULL;
f = (struct fsdata_file_noconst *)f->next) {
if(fs_strcmp(name, f->name) == 0) {
file->data = f->data;
file->len = f->len;
#ifdef FS_STATISTICS
#if FS_STATISTICS == 1
++count[i];
#endif /* FS_STATISTICS */
#endif /* FS_STATISTICS */
return 1;
}
#ifdef FS_STATISTICS
#if FS_STATISTICS == 1
++i;
#endif /* FS_STATISTICS */
#endif /* FS_STATISTICS */
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
void
fs_init(void)
{
#ifdef FS_STATISTICS
#if FS_STATISTICS == 1
u16_t i;
for(i = 0; i < FS_NUMFILES; i++) {
count[i] = 0;
}
#endif /* FS_STATISTICS */
#endif /* FS_STATISTICS */
}
/*-----------------------------------------------------------------------------------*/
#ifdef FS_STATISTICS
#if FS_STATISTICS == 1
u16_t fs_count
(char *name)
{
struct fsdata_file_noconst *f;
u16_t i;
i = 0;
for(f = (struct fsdata_file_noconst *)FS_ROOT;
f != NULL;
f = (struct fsdata_file_noconst *)f->next) {
if(fs_strcmp(name, f->name) == 0) {
return count[i];
}
++i;
}
return 0;
}
#endif /* FS_STATISTICS */
#endif /* FS_STATISTICS */
/*-----------------------------------------------------------------------------------*/