Esempi in C++ (Cpp) per check_fuse_device

Esempio n. 1

File: fusermount.c Progetto: lkzhd/glusterfs-annotation

static int mount_fuse(const char *mnt, const char *opts, char *devfd)
{
	int res;
	int fd;
	char *dev;
	struct stat stbuf;
	char *type = NULL;
	char *source = NULL;
	char *mnt_opts = NULL;
	const char *real_mnt = mnt;
	int mountpoint_fd = -1;

	fd = devfd ? check_fuse_device(devfd, &dev) : open_fuse_device(&dev);
	if (fd == -1)
		return -1;

	drop_privs();
	read_conf();

	if (getuid() != 0 && mount_max != -1) {
		int mount_count = count_fuse_fs();
		if (mount_count >= mount_max) {
			fprintf(stderr, "%s: too many FUSE filesystems mounted; mount_max=N can be set in /etc/fuse.conf\n", progname);
			goto fail_close_fd;
		}
	}

	res = check_version(dev);
	if (res != -1) {
		res = check_perm(&real_mnt, &stbuf, &mountpoint_fd);
		restore_privs();
		if (res != -1)
			res = do_mount(real_mnt, &type, stbuf.st_mode & S_IFMT,
				       fd, opts, dev, &source, &mnt_opts,
				       stbuf.st_size);
	} else
		restore_privs();

	if (mountpoint_fd != -1)
		close(mountpoint_fd);

	if (res == -1)
		goto fail_close_fd;

	res = chdir("/");
	if (res == -1) {
		fprintf(stderr, "%s: failed to chdir to '/'\n", progname);
		goto fail_close_fd;
	}

	if (geteuid() == 0) {
		res = add_mount(source, mnt, type, mnt_opts);
		if (res == -1) {
			/* Can't clean up mount in a non-racy way */
			goto fail_close_fd;
		}
	}

out_free:
	free(source);
	free(type);
	free(mnt_opts);
	free(dev);

	return fd;

fail_close_fd:
	close(fd);
	fd = -1;
	goto out_free;
}

Esempio n. 2

File: fusermount.c Progetto: NachE/glusterCopy

static int mount_fuse(const char *mnt, const char *opts, char *devfd)
{
	int res;
	int fd;
	char *dev;
	struct stat stbuf;
	char *type = NULL;
	char *source = NULL;
	char *mnt_opts = NULL;
	const char *real_mnt = mnt;
	int currdir_fd = -1;
	int mountpoint_fd = -1;

	fd = devfd ? check_fuse_device(devfd, &dev) : open_fuse_device(&dev);
	if (fd == -1)
		return -1;

	drop_privs();
	read_conf();

	if (getuid() != 0 && mount_max != -1) {
		int mount_count = count_fuse_fs();
		if (mount_count >= mount_max) {
			fprintf(stderr, "%s: too many FUSE filesystems mounted; mount_max=N can be set in /etc/fuse.conf\n", progname);
			close(fd);
			return -1;
		}
	}

	res = check_version(dev);
	if (res != -1) {
		res = check_perm(&real_mnt, &stbuf, &currdir_fd,
				 &mountpoint_fd);
		restore_privs();
		if (res != -1)
			res = do_mount(real_mnt, &type, stbuf.st_mode & S_IFMT,
				       fd, opts, dev, &source, &mnt_opts,
				       stbuf.st_size);
	} else
		restore_privs();

	if (currdir_fd != -1) {
		fchdir(currdir_fd);
		close(currdir_fd);
	}
	if (mountpoint_fd != -1)
		close(mountpoint_fd);

	if (res == -1) {
		close(fd);
		return -1;
	}

	if (geteuid() == 0) {
		res = add_mount(source, mnt, type, mnt_opts);
		if (res == -1) {
			umount2(mnt, 2); /* lazy umount */
			close(fd);
			return -1;
		}
	}

	free(source);
	free(type);
	free(mnt_opts);
	free(dev);

	return fd;
}