osd-contiki/platform/win32/cfs/cfs-win32.c

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/*
* Copyright (c) 2006, 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 Contiki operating system.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
* $Id: cfs-win32.c,v 1.4 2007/11/22 12:03:54 oliverschmidt Exp $
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
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#ifdef __CYGWIN__
#include <unistd.h>
#else
#define open _open
#define close _close
#define read _read
#define write _write
#define lseek _lseek
#endif
#include "contiki.h"
#include "cfs/cfs.h"
struct cfs_win32_dir {
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HANDLE handle;
char* name;
unsigned int size;
};
/*---------------------------------------------------------------------------*/
int
cfs_open(const char *n, int f)
{
return open(n, f == CFS_READ? O_RDONLY: O_CREAT|O_RDWR);
}
/*---------------------------------------------------------------------------*/
void
cfs_close(int f)
{
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close(f);
}
/*---------------------------------------------------------------------------*/
int
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cfs_read(int f, void *b, unsigned int l)
{
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return read(f, b, l);
}
/*---------------------------------------------------------------------------*/
int
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cfs_write(int f, void *b, unsigned int l)
{
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return write(f, b, l);
}
/*---------------------------------------------------------------------------*/
unsigned int
cfs_seek(int f, unsigned int o)
{
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return lseek(f, o, SEEK_SET);
}
/*---------------------------------------------------------------------------*/
int
cfs_opendir(struct cfs_dir *p, const char *n)
{
struct cfs_win32_dir *dir = (struct cfs_win32_dir *)p;
WIN32_FIND_DATA data;
char dirname[MAX_PATH];
if(*n == '/') {
GetModuleFileName(NULL, dirname, sizeof(dirname));
strcpy(strrchr(dirname, '\\'), "/*");
}else{
sprintf(dirname, "%s/*", n);
}
dir->handle = FindFirstFile(dirname, &data);
if(dir->handle == INVALID_HANDLE_VALUE) {
dir->name = NULL;
return -1;
}
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dir->name = strdup(data.cFileName);
dir->size = ((data.nFileSizeLow + 511) / 512) % 1000;
return 0;
}
/*---------------------------------------------------------------------------*/
int
cfs_readdir(struct cfs_dir *p, struct cfs_dirent *e)
{
struct cfs_win32_dir *dir = (struct cfs_win32_dir *)p;
WIN32_FIND_DATA data;
if(dir->name == NULL) {
return -1;
}
strncpy(e->name, dir->name, sizeof(e->name));
e->size = dir->size;
free(dir->name);
if(FindNextFile(dir->handle, &data) == 0) {
dir->name = NULL;
return 0;
}
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dir->name = strdup(data.cFileName);
dir->size = ((data.nFileSizeLow + 511) / 512) % 1000;
return 0;
}
/*---------------------------------------------------------------------------*/
void
cfs_closedir(struct cfs_dir *p)
{
struct cfs_win32_dir *dir = (struct cfs_win32_dir *)p;
free(dir->name);
FindClose(dir->handle);
}
/*---------------------------------------------------------------------------*/