osd-contiki/apps/webserver-nano/httpd-fs.c
2011-07-24 12:04:41 -04:00

156 lines
4.6 KiB
C

/*
* 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.
*
*/
#include "contiki-net.h"
#include "httpd.h"
#include "httpd-fs.h"
#include "httpd-fsdata.h"
#include <string.h> /* for memcpy */
/* httpd-fsdata.c contains the web content.
* It is generated using the PERL script /tools/makefsdata
*/
#include "httpd-fsdata.c"
#if WEBSERVER_CONF_FILESTATS==1
u16_t httpd_filecount[HTTPD_FS_NUMFILES];
#endif
/*-----------------------------------------------------------------------------------*/
void *
httpd_fs_get_root()
{
return (void *)HTTPD_FS_ROOT;
}
/*-----------------------------------------------------------------------------------*/
u16_t
httpd_fs_get_size()
{
return HTTPD_FS_SIZE;
}
/*-----------------------------------------------------------------------------------*/
static u8_t
httpd_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;
}
/*-----------------------------------------------------------------------------------*/
uint16_t
httpd_fs_open(const char *name, struct httpd_fs_file *file)
{
#if WEBSERVER_CONF_FILESTATS
u16_t i = 0;
#endif
struct httpd_fsdata_file_noconst *f,fram;
for(f = (struct httpd_fsdata_file_noconst *)HTTPD_FS_ROOT;
f != NULL;
f = (struct httpd_fsdata_file_noconst *)fram.next) {
/*Get the linked list entry into ram from wherever it is */
httpd_memcpy(&fram,f,sizeof(fram));
/*Compare name passed in RAM with name in whatever flash the file is in */
/*makefsdata adds an extra zero byte at the end of the file */
if(httpd_fs_strcmp((char *)name, fram.name) == 0) {
if (file) {
file->data = fram.data;
file->len = fram.len-1;
#if WEBSERVER_CONF_FILESTATS==2 //increment count in linked list field if it is in RAM
f->count++;
}
return f->count;
}
++i
#elif WEBSERVER_CONF_FILESTATS==1 //increment count in RAM array when linked list is in flash
++httpd_filecount[i];
}
return httpd_filecount[i];
}
++i;
#else //no file statistics
}
return 1;
}
#endif /* WEBSERVER_CONF_FILESTATS */
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
void
httpd_fs_init(void)
{
#if WEBSERVER_CONF_FILESTATS==1
u16_t i;
for(i = 0; i < HTTPD_FS_NUMFILES; i++) {
httpd_filecount[i] = 0;
}
#endif
}
/*-----------------------------------------------------------------------------------*/
#if WEBSERVER_CONF_FILESTATS && 0
u16_t
httpd_fs_count(char *name)
{
struct httpd_fsdata_file_noconst *f;
u16_t i;
i = 0;
for(f = (struct httpd_fsdata_file_noconst *)HTTPD_FS_ROOT;
f != NULL;
f = (struct httpd_fsdata_file_noconst *)f->next) {
if(httpd_fs_strcmp(name, f->name) == 0) {
return httpd_filecount[i];
}
++i;
}
return 0;
}
#endif
/*-----------------------------------------------------------------------------------*/