|
|
/*
FUSE: Filesystem in Userspace Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL. See the file COPYING.
gcc -Wall null.c `pkg-config fuse --cflags --libs` -o null */
#define FUSE_USE_VERSION 26
#include <fuse.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <errno.h>
static int null_getattr(const char *path, struct stat *stbuf) { if(strcmp(path, "/") != 0) return -ENOENT;
stbuf->st_mode = S_IFREG | 0644; stbuf->st_nlink = 1; stbuf->st_uid = getuid(); stbuf->st_gid = getgid(); stbuf->st_size = (1ULL << 32); /* 4G */ stbuf->st_blocks = 0; stbuf->st_atime = stbuf->st_mtime = stbuf->st_ctime = time(NULL);
return 0; }
static int null_truncate(const char *path, off_t size) { (void) size;
if(strcmp(path, "/") != 0) return -ENOENT;
return 0; }
static int null_open(const char *path, struct fuse_file_info *fi) { (void) fi;
if(strcmp(path, "/") != 0) return -ENOENT;
return 0; }
static int null_read(const char *path, char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { (void) buf; (void) offset; (void) fi;
if(strcmp(path, "/") != 0) return -ENOENT;
if (offset >= (1ULL << 32)) return 0;
return size; }
static int null_write(const char *path, const char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { (void) buf; (void) offset; (void) fi;
if(strcmp(path, "/") != 0) return -ENOENT;
return size; }
static struct fuse_operations null_oper = { .getattr = null_getattr, .truncate = null_truncate, .open = null_open, .read = null_read, .write = null_write, };
int main(int argc, char *argv[]) { return fuse_main(argc, argv, &null_oper, NULL); }
|