9f97290665
This change means that one needs to select _ONE_ cfs implementation at Contiki library link time. But this doesn't appear to be an issue as all platforms have their "favorite" implementation anyway.
143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/*
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* Copyright (c) 2004, 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
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: cfs-posix.c,v 1.3 2007/05/19 21:05:49 oliverschmidt Exp $
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*/
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#include "contiki.h"
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#include "cfs/cfs.h"
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#undef LITTLE_ENDIAN
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#undef BIG_ENDIAN
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#undef BYTE_ORDER
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#undef HTONS
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <string.h>
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#include <stdio.h>
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struct cfs_posix_dir {
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DIR *dirp;
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};
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/*---------------------------------------------------------------------------*/
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int
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cfs_open(const char *n, int f)
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{
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char filename[255];
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sprintf(filename, "cfs-root/%s", n);
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if(f == CFS_READ) {
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return open(filename, O_RDONLY);
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} else {
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return open(filename, O_CREAT|O_RDWR);
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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cfs_close(int f)
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{
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close(f);
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}
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/*---------------------------------------------------------------------------*/
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int
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cfs_read(int f, char *b, unsigned int l)
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{
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return read(f, b, l);
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}
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/*---------------------------------------------------------------------------*/
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int
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cfs_write(int f, char *b, unsigned int l)
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{
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return write(f, b, l);
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}
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/*---------------------------------------------------------------------------*/
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int
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cfs_seek(int f, unsigned int o)
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{
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return lseek(f, o, SEEK_SET);
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}
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/*---------------------------------------------------------------------------*/
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int
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cfs_opendir(struct cfs_dir *p, const char *n)
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{
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struct cfs_posix_dir *dir = (struct cfs_posix_dir *)p;
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char dirname[255];
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if(n == NULL) {
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n = "";
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}
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sprintf(dirname, "cfs-root/%s", n);
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dir->dirp = opendir(dirname);
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if(dir->dirp == NULL) {
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printf("cfs-posix: could not open directory '%s'\n", dirname);
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}
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return dir->dirp == NULL;
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}
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/*---------------------------------------------------------------------------*/
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int
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cfs_readdir(struct cfs_dir *p, struct cfs_dirent *e)
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{
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struct cfs_posix_dir *dir = (struct cfs_posix_dir *)p;
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struct dirent *res;
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int ret;
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if(dir->dirp == NULL) {
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return 1;
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}
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res = readdir(dir->dirp);
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if(res == NULL) {
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return 1;
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}
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strncpy(e->name, res->d_name, sizeof(e->name));
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e->size = 0;
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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int
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cfs_closedir(struct cfs_dir *p)
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{
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struct cfs_posix_dir *dir = (struct cfs_posix_dir *)p;
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if(dir->dirp != NULL) {
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closedir(dir->dirp);
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}
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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