124 lines
2.7 KiB
Rust
124 lines
2.7 KiB
Rust
#![feature(libc)]
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extern crate fuse;
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extern crate libc;
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extern crate time;
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use std::ffi::OsStr;
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use fuse::{
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FileAttr, FileType, Filesystem, ReplyAttr, ReplyData, ReplyDirectory, ReplyEntry, Request,
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};
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use libc::ENOENT;
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use std::env;
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use time::Timespec;
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const TTL: Timespec = Timespec { sec: 1, nsec: 0 }; // 1 second
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const CREATE_TIME: Timespec = Timespec {
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sec: 1381237736,
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nsec: 0,
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}; // 2013-10-08 08:56
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const HELLO_DIR_ATTR: FileAttr = FileAttr {
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ino: 1,
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size: 0,
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blocks: 0,
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atime: CREATE_TIME,
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mtime: CREATE_TIME,
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ctime: CREATE_TIME,
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crtime: CREATE_TIME,
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kind: FileType::Directory,
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perm: 0o755,
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nlink: 2,
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uid: 501,
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gid: 20,
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rdev: 0,
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flags: 0,
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};
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const HELLO_TXT_CONTENT: &'static str = "Hello World!\n";
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const HELLO_TXT_ATTR: FileAttr = FileAttr {
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ino: 2,
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size: 13,
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blocks: 1,
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atime: CREATE_TIME,
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mtime: CREATE_TIME,
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ctime: CREATE_TIME,
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crtime: CREATE_TIME,
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kind: FileType::RegularFile,
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perm: 0o644,
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nlink: 1,
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uid: 501,
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gid: 20,
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rdev: 0,
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flags: 0,
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};
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struct HelloFS;
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impl Filesystem for HelloFS {
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fn lookup(&mut self, _req: &Request, parent: u64, name: &OsStr, reply: ReplyEntry) {
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if parent == 1 && name.to_str() == Some("hello.txt") {
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reply.entry(&TTL, &HELLO_TXT_ATTR, 0);
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} else {
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reply.error(ENOENT);
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}
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}
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fn getattr(&mut self, _req: &Request, ino: u64, reply: ReplyAttr) {
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match ino {
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1 => reply.attr(&TTL, &HELLO_DIR_ATTR),
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2 => reply.attr(&TTL, &HELLO_TXT_ATTR),
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_ => reply.error(ENOENT),
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}
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}
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fn read(
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&mut self,
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_req: &Request,
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ino: u64,
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_fh: u64,
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offset: i64,
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_size: u32,
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reply: ReplyData,
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) {
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if ino == 2 {
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reply.data(&HELLO_TXT_CONTENT.as_bytes()[offset as usize..]);
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} else {
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reply.error(ENOENT);
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}
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}
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fn readdir(
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&mut self,
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_req: &Request,
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ino: u64,
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_fh: u64,
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offset: i64,
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mut reply: ReplyDirectory,
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) {
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if ino == 1 {
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if offset == 0 {
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reply.add(1, 0, FileType::Directory, ".");
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reply.add(1, 1, FileType::Directory, "..");
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reply.add(2, 2, FileType::RegularFile, "hello.txt");
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}
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reply.ok();
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} else {
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reply.error(ENOENT);
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}
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}
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}
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fn main() {
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let mountpoint = env::args_os().nth(1).unwrap();
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let handle = fuse::mount(HelloFS, &mountpoint, &[]);
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match handle {
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Ok(_) => {}
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Err(error) => {
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println!("{}", error)
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}
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}
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}
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