FUSE (Code)

Haloo sobat2 sekalian :D .Sesuai postingan lalu,kali ini saya akan memberikan codingan FUSE.c

disini saya beri nama fusexmp.c.Kodingannya cukup panjang ._. tapi ini hanya sekedar template kok..Bisa dipahami :D

Untuk Codingannya sebagai berikutt


/*
  FUSE: Filesystem in Userspace
  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  Copyright (C) 2011       Sebastian Pipping <sebastian@pipping.org>

  This program can be distributed under the terms of the GNU GPL.
  See the file COPYING.

  gcc -Wall fusexmp.c `pkg-config fuse --cflags --libs` -o fusexmp
*/

#define FUSE_USE_VERSION 26

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef linux
/* For pread()/pwrite()/utimensat() */
#define _XOPEN_SOURCE 700
#endif

#include <fuse.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <dirent.h>
#include <errno.h>
#include <sys/time.h>
#ifdef HAVE_SETXATTR
#include <sys/xattr.h>
#endif

static int xmp_getattr(const char *path, struct stat *stbuf)
{
int res;

res = lstat(path, stbuf);
if (res == -1)
return -errno;

return 0;
}

static int xmp_access(const char *path, int mask)
{
int res;

res = access(path, mask);
if (res == -1)
return -errno;

return 0;
}

static int xmp_readlink(const char *path, char *buf, size_t size)
{
int res;

res = readlink(path, buf, size - 1);
if (res == -1)
return -errno;

buf[res] = '\0';
return 0;
}


static int xmp_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
      off_t offset, struct fuse_file_info *fi)
{
DIR *dp;
struct dirent *de;

(void) offset;
(void) fi;

dp = opendir(path);
if (dp == NULL)
return -errno;

while ((de = readdir(dp)) != NULL) {
struct stat st;
memset(&st, 0, sizeof(st));
st.st_ino = de->d_ino;
st.st_mode = de->d_type << 12;
if (filler(buf, de->d_name, &st, 0))
break;
}

closedir(dp);
return 0;
}

static int xmp_mknod(const char *path, mode_t mode, dev_t rdev)
{
int res;

/* On Linux this could just be 'mknod(path, mode, rdev)' but this
  is more portable */
if (S_ISREG(mode)) {
res = open(path, O_CREAT | O_EXCL | O_WRONLY, mode);
if (res >= 0)
res = close(res);
} else if (S_ISFIFO(mode))
res = mkfifo(path, mode);
else
res = mknod(path, mode, rdev);
if (res == -1)
return -errno;

return 0;
}

static int xmp_mkdir(const char *path, mode_t mode)
{
int res;

res = mkdir(path, mode);
if (res == -1)
return -errno;

return 0;
}

static int xmp_unlink(const char *path)
{
int res;

res = unlink(path);
if (res == -1)
return -errno;

return 0;
}

static int xmp_rmdir(const char *path)
{
int res;

res = rmdir(path);
if (res == -1)
return -errno;

return 0;
}

static int xmp_symlink(const char *from, const char *to)
{
int res;

res = symlink(from, to);
if (res == -1)
return -errno;

return 0;
}

static int xmp_rename(const char *from, const char *to)
{
int res;

res = rename(from, to);
if (res == -1)
return -errno;

return 0;
}

static int xmp_link(const char *from, const char *to)
{
int res;

res = link(from, to);
if (res == -1)
return -errno;

return 0;
}

static int xmp_chmod(const char *path, mode_t mode)
{
int res;

res = chmod(path, mode);
if (res == -1)
return -errno;

return 0;
}

static int xmp_chown(const char *path, uid_t uid, gid_t gid)
{
int res;

res = lchown(path, uid, gid);
if (res == -1)
return -errno;

return 0;
}

static int xmp_truncate(const char *path, off_t size)
{
int res;

res = truncate(path, size);
if (res == -1)
return -errno;

return 0;
}

#ifdef HAVE_UTIMENSAT
static int xmp_utimens(const char *path, const struct timespec ts[2])
{
int res;

/* don't use utime/utimes since they follow symlinks */
res = utimensat(0, path, ts, AT_SYMLINK_NOFOLLOW);
if (res == -1)
return -errno;

return 0;
}
#endif

static int xmp_open(const char *path, struct fuse_file_info *fi)
{
int res;

res = open(path, fi->flags);
if (res == -1)
return -errno;

close(res);
return 0;
}

static int xmp_read(const char *path, char *buf, size_t size, off_t offset,
   struct fuse_file_info *fi)
{
int fd;
int res;

(void) fi;
fd = open(path, O_RDONLY);
if (fd == -1)
return -errno;

res = pread(fd, buf, size, offset);
if (res == -1)
res = -errno;

close(fd);
return res;
}

static int xmp_write(const char *path, const char *buf, size_t size,
    off_t offset, struct fuse_file_info *fi)
{
int fd;
int res;

(void) fi;
fd = open(path, O_WRONLY);
if (fd == -1)
return -errno;

res = pwrite(fd, buf, size, offset);
if (res == -1)
res = -errno;

close(fd);
return res;
}

static int xmp_statfs(const char *path, struct statvfs *stbuf)
{
int res;

res = statvfs(path, stbuf);
if (res == -1)
return -errno;

return 0;
}

static int xmp_release(const char *path, struct fuse_file_info *fi)
{
/* Just a stub. This method is optional and can safely be left
  unimplemented */

(void) path;
(void) fi;
return 0;
}

static int xmp_fsync(const char *path, int isdatasync,
    struct fuse_file_info *fi)
{
/* Just a stub. This method is optional and can safely be left
  unimplemented */

(void) path;
(void) isdatasync;
(void) fi;
return 0;
}

#ifdef HAVE_POSIX_FALLOCATE
static int xmp_fallocate(const char *path, int mode,
off_t offset, off_t length, struct fuse_file_info *fi)
{
int fd;
int res;

(void) fi;

if (mode)
return -EOPNOTSUPP;

fd = open(path, O_WRONLY);
if (fd == -1)
return -errno;

res = -posix_fallocate(fd, offset, length);

close(fd);
return res;
}
#endif

#ifdef HAVE_SETXATTR
/* xattr operations are optional and can safely be left unimplemented */
static int xmp_setxattr(const char *path, const char *name, const char *value,
size_t size, int flags)
{
int res = lsetxattr(path, name, value, size, flags);
if (res == -1)
return -errno;
return 0;
}

static int xmp_getxattr(const char *path, const char *name, char *value,
size_t size)
{
int res = lgetxattr(path, name, value, size);
if (res == -1)
return -errno;
return res;
}

static int xmp_listxattr(const char *path, char *list, size_t size)
{
int res = llistxattr(path, list, size);
if (res == -1)
return -errno;
return res;
}

static int xmp_removexattr(const char *path, const char *name)
{
int res = lremovexattr(path, name);
if (res == -1)
return -errno;
return 0;
}
#endif /* HAVE_SETXATTR */

static struct fuse_operations xmp_oper = {
.getattr = xmp_getattr,
.access = xmp_access,
.readlink = xmp_readlink,
.readdir = xmp_readdir,
.mknod = xmp_mknod,
.mkdir = xmp_mkdir,
.symlink = xmp_symlink,
.unlink = xmp_unlink,
.rmdir = xmp_rmdir,
.rename = xmp_rename,
.link = xmp_link,
.chmod = xmp_chmod,
.chown = xmp_chown,
.truncate = xmp_truncate,
#ifdef HAVE_UTIMENSAT
.utimens = xmp_utimens,
#endif
.open = xmp_open,
.read = xmp_read,
.write = xmp_write,
.statfs = xmp_statfs,
.release = xmp_release,
.fsync = xmp_fsync,
#ifdef HAVE_POSIX_FALLOCATE
.fallocate = xmp_fallocate,
#endif
#ifdef HAVE_SETXATTR
.setxattr = xmp_setxattr,
.getxattr = xmp_getxattr,
.listxattr = xmp_listxattr,
.removexattr = xmp_removexattr,
#endif
};

int main(int argc, char *argv[])
{
umask(0);
return fuse_main(argc, argv, &xmp_oper, NULL);
}


Sekian dan Terima Kasih :))