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/*
FUSE: Filesystem in Userspace
Copyright (C) 2001 Miklos Szeredi (mszeredi@inf.bme.hu)
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
*/
#include <fuse.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
static const char *hello_str = "Hello World!\n";
static const char *hello_path = "/hello";
static int hello_getattr(const char *path, struct stat *stbuf)
{
int res = 0;
memset(stbuf, 0, sizeof(struct stat));
if(strcmp(path, "/") == 0) {
stbuf->st_mode = S_IFDIR | 0755;
stbuf->st_nlink = 2;
}
else if(strcmp(path, hello_path) == 0) {
stbuf->st_mode = S_IFREG | 0444;
stbuf->st_nlink = 1;
stbuf->st_size = strlen(hello_str);
}
else
res = -ENOENT;
return res;
}
static int hello_getdir(const char *path, fuse_dirh_t h, fuse_dirfil_t filler)
{
if(strcmp(path, "/") != 0)
return -ENOENT;
filler(h, ".", 0);
filler(h, "..", 0);
filler(h, hello_path + 1, 0);
return 0;
}
static int hello_open(const char *path, int flags)
{
if(strcmp(path, hello_path) != 0)
return -ENOENT;
if((flags & 3) != O_RDONLY)
return -EACCES;
return 0;
}
static int hello_read(const char *path, char *buf, size_t size, off_t offset)
{
if(strcmp(path, hello_path) != 0)
return -ENOENT;
memcpy(buf, hello_str + offset, size);
return size;
}
static struct fuse_operations hello_oper = {
.getattr = hello_getattr,
.getdir = hello_getdir,
.open = hello_open,
.read = hello_read,
};
int main(int argc, char *argv[])
{
fuse_main(argc, argv, &hello_oper);
return 0;
}
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