* make a filesystem
*
* This creates a filesystem on "device" (usually a
- * partition of LVM logical volume). The filesystem type is
+ * partition or LVM logical volume). The filesystem type is
* "fstype", for example "ext3".
*
* @throws LibGuestFSException
* calculated using "strlen" (so in this case the content
* cannot contain embedded ASCII NULs).
*
+ * *NB.* Owing to a bug, writing content containing ASCII
+ * NUL characters does *not* work, even if the length is
+ * specified. We hope to resolve this bug in a future
+ * version. In the meantime use "g.upload".
+ *
* Because of the message protocol, there is a transfer
* limit of somewhere between 2MB and 4MB. To transfer
* large files you should use FTP.
* which should have filesystem type "fstype".
*
* The returned integer is the status. See fsck(8) for the
- * list of status codes from "fsck", and note that multiple
- * status codes can be summed together.
+ * list of status codes from "fsck".
+ *
+ * Notes:
+ *
+ * * Multiple status codes can be summed together.
+ *
+ * * A non-zero return code can mean "success", for
+ * example if errors have been corrected on the
+ * filesystem.
*
- * It is entirely equivalent to running "fsck -a -t fstype
- * device". Note that checking or repairing NTFS volumes is
- * not supported (by linux-ntfs).
+ * * Checking or repairing NTFS volumes is not supported
+ * (by linux-ntfs).
+ *
+ * This command is entirely equivalent to running "fsck -a
+ * -t fstype device".
*
* @throws LibGuestFSException
*/
private native void _zero (long g, String device)
throws LibGuestFSException;
+ /**
+ * install GRUB
+ *
+ * This command installs GRUB (the Grand Unified
+ * Bootloader) on "device", with the root directory being
+ * "root".
+ *
+ * @throws LibGuestFSException
+ */
+ public void grub_install (String root, String device)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("grub_install: handle is closed");
+ _grub_install (g, root, device);
+ }
+ private native void _grub_install (long g, String root, String device)
+ throws LibGuestFSException;
+
+ /**
+ * copy a file
+ *
+ * This copies a file from "src" to "dest" where "dest" is
+ * either a destination filename or destination directory.
+ *
+ * @throws LibGuestFSException
+ */
+ public void cp (String src, String dest)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("cp: handle is closed");
+ _cp (g, src, dest);
+ }
+ private native void _cp (long g, String src, String dest)
+ throws LibGuestFSException;
+
+ /**
+ * copy a file or directory recursively
+ *
+ * This copies a file or directory from "src" to "dest"
+ * recursively using the "cp -a" command.
+ *
+ * @throws LibGuestFSException
+ */
+ public void cp_a (String src, String dest)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("cp_a: handle is closed");
+ _cp_a (g, src, dest);
+ }
+ private native void _cp_a (long g, String src, String dest)
+ throws LibGuestFSException;
+
+ /**
+ * move a file
+ *
+ * This moves a file from "src" to "dest" where "dest" is
+ * either a destination filename or destination directory.
+ *
+ * @throws LibGuestFSException
+ */
+ public void mv (String src, String dest)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("mv: handle is closed");
+ _mv (g, src, dest);
+ }
+ private native void _mv (long g, String src, String dest)
+ throws LibGuestFSException;
+
+ /**
+ * drop kernel page cache, dentries and inodes
+ *
+ * This instructs the guest kernel to drop its page cache,
+ * and/or dentries and inode caches. The parameter
+ * "whattodrop" tells the kernel what precisely to drop,
+ * see <http://linux-mm.org/Drop_Caches>
+ *
+ * Setting "whattodrop" to 3 should drop everything.
+ *
+ * This automatically calls sync(2) before the operation,
+ * so that the maximum guest memory is freed.
+ *
+ * @throws LibGuestFSException
+ */
+ public void drop_caches (int whattodrop)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("drop_caches: handle is closed");
+ _drop_caches (g, whattodrop);
+ }
+ private native void _drop_caches (long g, int whattodrop)
+ throws LibGuestFSException;
+
+ /**
+ * return kernel messages
+ *
+ * This returns the kernel messages ("dmesg" output) from
+ * the guest kernel. This is sometimes useful for extended
+ * debugging of problems.
+ *
+ * Another way to get the same information is to enable
+ * verbose messages with "g.set_verbose" or by setting the
+ * environment variable "LIBGUESTFS_DEBUG=1" before running
+ * the program.
+ *
+ * @throws LibGuestFSException
+ */
+ public String dmesg ()
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("dmesg: handle is closed");
+ return _dmesg (g);
+ }
+ private native String _dmesg (long g)
+ throws LibGuestFSException;
+
+ /**
+ * ping the guest daemon
+ *
+ * This is a test probe into the guestfs daemon running
+ * inside the qemu subprocess. Calling this function checks
+ * that the daemon responds to the ping message, without
+ * affecting the daemon or attached block device(s) in any
+ * other way.
+ *
+ * @throws LibGuestFSException
+ */
+ public void ping_daemon ()
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("ping_daemon: handle is closed");
+ _ping_daemon (g);
+ }
+ private native void _ping_daemon (long g)
+ throws LibGuestFSException;
+
+ /**
+ * test if two files have equal contents
+ *
+ * This compares the two files "file1" and "file2" and
+ * returns true if their content is exactly equal, or false
+ * otherwise.
+ *
+ * The external cmp(1) program is used for the comparison.
+ *
+ * @throws LibGuestFSException
+ */
+ public boolean equal (String file1, String file2)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("equal: handle is closed");
+ return _equal (g, file1, file2);
+ }
+ private native boolean _equal (long g, String file1, String file2)
+ throws LibGuestFSException;
+
+ /**
+ * print the printable strings in a file
+ *
+ * This runs the strings(1) command on a file and returns
+ * the list of printable strings found.
+ *
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
+ * @throws LibGuestFSException
+ */
+ public String[] strings (String path)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("strings: handle is closed");
+ return _strings (g, path);
+ }
+ private native String[] _strings (long g, String path)
+ throws LibGuestFSException;
+
+ /**
+ * print the printable strings in a file
+ *
+ * This is like the "g.strings" command, but allows you to
+ * specify the encoding.
+ *
+ * See the strings(1) manpage for the full list of
+ * encodings.
+ *
+ * Commonly useful encodings are "l" (lower case L) which
+ * will show strings inside Windows/x86 files.
+ *
+ * The returned strings are transcoded to UTF-8.
+ *
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
+ * @throws LibGuestFSException
+ */
+ public String[] strings_e (String encoding, String path)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("strings_e: handle is closed");
+ return _strings_e (g, encoding, path);
+ }
+ private native String[] _strings_e (long g, String encoding, String path)
+ throws LibGuestFSException;
+
+ /**
+ * dump a file in hexadecimal
+ *
+ * This runs "hexdump -C" on the given "path". The result
+ * is the human-readable, canonical hex dump of the file.
+ *
+ * Because of the message protocol, there is a transfer
+ * limit of somewhere between 2MB and 4MB. To transfer
+ * large files you should use FTP.
+ *
+ * @throws LibGuestFSException
+ */
+ public String hexdump (String path)
+ throws LibGuestFSException
+ {
+ if (g == 0)
+ throw new LibGuestFSException ("hexdump: handle is closed");
+ return _hexdump (g, path);
+ }
+ private native String _hexdump (long g, String path)
+ throws LibGuestFSException;
+
}
git.annexia.org / libguestfs.git / blobdiff