/* FUSE: Filesystem in Userspace Copyright (C) 2001-2005 Miklos Szeredi This program can be distributed under the terms of the GNU GPL. See the file COPYING. */ #include #ifdef linux /* For pread()/pwrite() */ #define _XOPEN_SOURCE 500 #endif #include #include #include #include #include #include #include #include #ifdef HAVE_SETXATTR #include #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_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_opendir(const char *path, struct fuse_file_info *fi) { DIR *dp = opendir(path); if (dp == NULL) return -errno; fi->fh = (unsigned long) dp; 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 = (DIR *) fi->fh; struct dirent *de; (void) path; seekdir(dp, offset); 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, telldir(dp))) break; } return 0; } static int xmp_releasedir(const char *path, struct fuse_file_info *fi) { DIR *dp = (DIR *) fi->fh; (void) path; closedir(dp); return 0; } static int xmp_mknod(const char *path, mode_t mode, dev_t rdev) { int res; /* On the Hurd we must not use mknod() to create files, but creat() */ if(mode & S_IFREG) res = creat(path, mode & ALLPERMS); 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; } static int xmp_utime(const char *path, struct utimbuf *buf) { int res; res = utime(path, buf); if(res == -1) return -errno; return 0; } static int xmp_open(const char *path, struct fuse_file_info *fi) { int res; res = open(path, fi->flags); if(res == -1) return -errno; fi->fh = res; return 0; } static int xmp_read(const char *path, char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { int res; (void) path; res = pread(fi->fh, buf, size, offset); if(res == -1) res = -errno; return res; } static int xmp_write(const char *path, const char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { int res; (void) path; res = pwrite(fi->fh, buf, size, offset); if(res == -1) res = -errno; return res; } static int xmp_statfs(const char *path, struct statfs *stbuf) { int res; res = statfs(path, stbuf); if(res == -1) return -errno; return 0; } static int xmp_release(const char *path, struct fuse_file_info *fi) { (void) path; close(fi->fh); return 0; } static int xmp_fsync(const char *path, int isdatasync, struct fuse_file_info *fi) { int res; (void) path; if (isdatasync) res = fdatasync(fi->fh); else res = fsync(fi->fh); if(res == -1) return -errno; return 0; } #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, .readlink = xmp_readlink, .opendir = xmp_opendir, .readdir = xmp_readdir, .releasedir = xmp_releasedir, .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, .utime = xmp_utime, .open = xmp_open, .read = xmp_read, .write = xmp_write, .statfs = xmp_statfs, .release = xmp_release, .fsync = xmp_fsync, #ifdef HAVE_SETXATTR .setxattr = xmp_setxattr, .getxattr = xmp_getxattr, .listxattr = xmp_listxattr, .removexattr= xmp_removexattr, #endif }; int main(int argc, char *argv[]) { return fuse_main(argc, argv, &xmp_oper); }