* wimlib.h
*
* External header for wimlib.
+ *
+ * This file contains extensive comments for generating documentation with
+ * Doxygen. The built HTML documentation can be viewed at
+ * http://wimlib.sourceforge.net.
*/
/*
- * Copyright (C) 2012 Eric Biggers
+ * Copyright (C) 2012, 2013 Eric Biggers
*
* This file is part of wimlib, a library for working with WIM files.
*
*
* \section intro Introduction
*
+ * This is the documentation for the library interface of wimlib 1.3.0. If you
+ * have installed wimlib and want to know how to use the @c imagex program,
+ * please see the man pages instead. Also: the actual project page where you
+ * can download the source code for the library is at <a
+ * href="https://sourceforge.net/projects/wimlib">https://sourceforge.net/projects/wimlib</a>.
+ *
* wimlib is a C library to read, write, and mount archive files in the Windows
* Imaging Format (WIM files). These files are normally created using the @c
* imagex.exe utility on Windows, but this library provides a free
* Microsoft provides documentation for the WIM file format, XPRESS compression
* format, and LZX compression format. The XPRESS documentation is acceptable,
* but the LZX documentation is not entirely correct, and the WIM documentation
- * itself is very incomplete and is of unacceptable quality.
+ * itself is incomplete.
*
* A WIM file may be either stand-alone or split into multiple parts.
*
+ * \section ntfs NTFS support
+ *
+ * As of version 1.0.0, wimlib supports capturing and applying images directly
+ * to NTFS volumes. This was made possible with the help of libntfs-3g from the
+ * NTFS-3g project. This feature supports capturing and restoring NTFS-specific
+ * data such as security descriptors, alternate data streams, and reparse point
+ * data.
+
+ * The code for NTFS image capture and image application is complete enough that
+ * it is possible to apply an image from the "install.wim" contained in recent
+ * Windows installation media (Vista, Windows 7, or Windows 8) directly to a
+ * NTFS volume, and then boot Windows from it after preparing the Boot
+ * Configuration Data. In addition, a Windows installation can be captured (or
+ * backed up) into a WIM file, and then re-applied later.
+ *
* \section winpe Windows PE
*
* A major use for this library is to create customized images of Windows PE, the
* WIM containing an image of the Windows Recovery Environment, which is similar to
* Windows PE.
*
- * \section ntfs NTFS support
- *
- * As of version 1.0.0, wimlib supports capturing and applying images directly
- * to NTFS volumes. This was made possible with the help of libntfs-3g from the
- * NTFS-3g project. This feature supports capturing and restoring NTFS-specific
- * data such as security descriptors, alternate data streams, and reparse point
- * data.
-
- * The code for NTFS image capture and image application is complete enough that
- * it is possible to apply an image from the "install.wim" contained in recent
- * Windows installation media (Vista, Windows 7, or Windows 8) directly to a
- * NTFS volume, and then boot Windows from it after preparing the Boot
- * Configuration Data. In addition, a Windows installation can be captured (or
- * backed up) into a WIM file, and then re-applied later.
- *
* \section starting Getting Started
*
* wimlib uses the GNU autotools, so it should be easy to install with
* message being printed.
*
* wimlib is thread-safe as long as different ::WIMStruct's are used, except for
- * the fact that wimlib_set_print_errors() and wimlib_set_memory_allocator()
- * both apply globally.
+ * the following exceptions:
+ * - wimlib_set_print_errors() and wimlib_set_memory_allocator() both apply globally.
+ * - You also must call wimlib_global_init() in the main thread to avoid any
+ * race conditions with one-time allocations of memory.
+ * - wimlib_mount_image(), while it can be used to mount multiple WIMs
+ * concurrently in the same process, will daemonize the entire process when it
+ * does so for the first time. This includes changing the working directory
+ * to the root directory.
*
* To open an existing WIM, use wimlib_open_wim().
*
*
* To add an image to a WIM file from a directory tree on your filesystem, call
* wimlib_add_image(). This can be done with a ::WIMStruct gotten from
- * wimlib_open_wim() or from wimlib_create_new_wim(). Alternatively, you can
- * capture a WIM directory from a NTFS volume if you provide the
+ * wimlib_open_wim() or from wimlib_create_new_wim(). wimlib_add_image() can
+ * also capture a WIM image directly from a NTFS volume if you provide the
* ::WIMLIB_ADD_IMAGE_FLAG_NTFS flag, provided that wimlib was not compiled with
* the <code>--without-ntfs-3g</code> flag.
*
* To extract an image from a WIM file, call wimlib_extract_image(). You may
- * extract an image to a directory or directly to a NTFS volume, the latter of
- * which will preserve NTFS-specific data such as security descriptors.
+ * extract an image either to a directory or directly to a NTFS volume, the
+ * latter of which will preserve NTFS-specific data such as security
+ * descriptors.
*
* wimlib supports mounting WIM files either read-only or read-write. Mounting
* is done using wimlib_mount_image() and unmounting is done using
* wimlib_unmount_image(). Mounting can be done without root privileges because
* it is implemented using FUSE (Filesystem in Userspace). If wimlib is
* compiled with the <code>--without-fuse</code> flag, these functions will be
- * available but will fail.
+ * available but will fail with ::WIMLIB_ERR_UNSUPPORTED.
*
* After creating or modifying a WIM file, you can write it to a file using
- * wimlib_write(). Alternatively, if the WIM was originally read from a file,
- * you can use wimlib_overwrite() to overwrite the original file.
+ * wimlib_write(). Alternatively, if the WIM was originally read from a file
+ * (using wimlib_open_wim() rather than wimlib_create_new_wim()), you can use
+ * wimlib_overwrite() to overwrite the original file.
*
- * Please not: merely by calling wimlib_add_image() or many of the other
+ * Please note: merely by calling wimlib_add_image() or many of the other
* functions in this library that operate on ::WIMStruct's, you are @b not
* modifying the WIM file on disk. Changes are not saved until you explicitly
* call wimlib_write() or wimlib_overwrite().
*
* A number of functions take a pointer to a progress function of type
* ::wimlib_progress_func_t. This function will be called periodically during
- * the WIM operation(s) to report on the progress of the operation (e.g. how
- * many bytes have been written so far).
- *
- * To see an example of how to use wimlib, see the file @c programs/imagex.c in
- * wimlib's source tree.
+ * the WIM operation(s) to report on the progress of the operation (for example,
+ * how many bytes have been written so far).
*
* \section imagex imagex
*
- * wimlib comes with the <b>imagex</b> program, which is documented in man pages.
+ * wimlib comes with a command-line interface, the @b imagex program. It is
+ * documented with man pages. See its source code (@c programs/imagex.c in
+ * wimlib's source tree) for an example of how to use wimlib in your program.
*
* \section mkwinpeimg mkwinpeimg
*
- * wimlib comes with the <b>mkwinpeimg</b> script, which is documented in a man
- * page.
+ * wimlib also comes with the <b>mkwinpeimg</b> script, which is documented in a
+ * man page.
*
* \section Limitations
*
* While wimlib supports the main features of WIM files, wimlib currently has
* the following limitations:
- * - Different versions of the WIM file format are unsupported. There is one
- * different version of the format from development versions of Windows Vista,
- * but I'm not planning to support it.
- * - Compressed resource chunk sizes other than 32768 are unsupported (except for
- * uncompressed WIMs, for which the chunk size field is ignored). As far as I
- * can tell, other chunk sizes are not used in compressed WIMs. Let me know
- * if you find a WIM file with a different chunk size.
+ * - wimlib cannot be used on MS-Windows.
+ * - There is no way to add, remove, modify, or extract specific files in a WIM
+ * without mounting it, other than by adding, removing, or extracting an
+ * entire image. The FUSE mount feature should be used for this purpose.
+ * - Currently, Microsoft's @a image.exe can create slightly smaller WIM files
+ * than wimlib when using maximum (LZX) compression because it knows how to
+ * split up LZX compressed blocks, which is not yet implemented in wimlib.
+ * - wimlib is experimental and likely contains bugs; use Microsoft's @a
+ * imagex.exe if you want to make sure your WIM files are made "correctly".
+ * - The old WIM format from Vista pre-releases is not supported.
+ * - Compressed resource chunk sizes other than 32768 are not supported,
+ * although this doesn't seem to be a problem because the chunk size always
+ * seems to be this value.
* - wimlib does not provide a clone of the @b PEImg tool that allows you to
* make certain Windows-specific modifications to a Windows PE image, such as
* adding a driver or Windows component. Such a tool could conceivably be
* script for a similar purpose, however. With regards to adding drivers to
* Windows PE, you have the option of putting them anywhere in the Windows PE
* image, then loading them after boot using @b drvload.exe.
- * - There is not yet a way to extract specific files or directories from a WIM
- * file without mounting it, or to add, remove, or modify files in a WIM
- * without mounting it, other than by adding or removing an entire image. I
- * can implement this if requested, but I intend the FUSE mount feature to be
- * used for this purpose, as it is easy to do these things in whatever way you
- * want after the image is mounted.
- * - Currently, Microsoft's @a image.exe can create slightly smaller WIM files
- * than wimlib when using maximum (LZX) compression because it knows how to
- * split up LZX compressed blocks, which is not yet implemented in wimlib.
- * - wimlib is experimental and likely contains bugs; use Microsoft's @a
- * imagex.exe if you want to make sure your WIM files are made "correctly".
*
* \section legal License
*
#include <stdbool.h>
#include <inttypes.h>
+/** Major version of the library (for example, the 1 in 1.2.5). */
+#define WIMLIB_MAJOR_VERSION 1
+
+/** Minor version of the library (for example, the 2 in 1.2.5). */
+#define WIMLIB_MINOR_VERSION 3
+
+/** Patch version of the library (for example, the 5 in 1.2.5). */
+#define WIMLIB_PATCH_VERSION 0
+
/**
- * Opaque structure that represents a WIM file.
+ * Opaque structure that represents a WIM file. This is an in-memory structure
+ * and need not correspond to a specific on-disk file. However, a ::WIMStruct
+ * obtained from wimlib_open_wim() depends on the underlying on-disk WIM file
+ * continuing to exist so that data can be read from it as needed.
+ *
+ * Most functions in this library will work the same way regardless of whether a
+ * given ::WIMStruct was obtained through wimlib_open_wim() or
+ * wimlib_create_new_wim(). Exceptions are documented.
+ *
+ * Use wimlib_write() or wimlib_overwrite() to actually write an on-disk WIM
+ * file from a ::WIMStruct.
*/
typedef struct WIMStruct WIMStruct;
WIMLIB_COMPRESSION_TYPE_XPRESS = 2,
};
+/** Possible values of the first parameter to the user-supplied
+ * ::wimlib_progress_func_t progress function */
enum wimlib_progress_msg {
+
+ /** A WIM image is about to be extracted. @a info will point to
+ * ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_BEGIN,
+
+ /** The directory structure of the WIM image is about to be extracted.
+ * @a info will point to ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
+
+ /** The directory structure of the WIM image has been successfully
+ * extracted. @a info will point to ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END,
+
+ /** The WIM image's files resources are currently being extracted. @a
+ * info will point to ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS,
+
+ /** A file or directory is being extracted. @a info will point to
+ * ::wimlib_progress_info.extract, and the @a cur_path member will be
+ * valid. */
+ WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY,
+
+ /** All the WIM files and directories have been extracted, and
+ * timestamps are about to be applied. @a info will point to
+ * ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS,
+
+ /** A WIM image has been successfully extracted. @a info will point to
+ * ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_END,
+ /** The directory or NTFS volume is about to be scanned to build a tree
+ * of WIM dentries in-memory. @a info will point to
+ * ::wimlib_progress_info.scan. */
WIMLIB_PROGRESS_MSG_SCAN_BEGIN,
+
+ /** A directory or file is being scanned. @a info will point to
+ * ::wimlib_progress_info.scan, and its @a cur_path member will be
+ * valid. This message is only sent if ::WIMLIB_ADD_IMAGE_FLAG_VERBOSE
+ * is passed to wimlib_add_image(). */
+ WIMLIB_PROGRESS_MSG_SCAN_DENTRY,
+
+ /** The directory or NTFS volume has been successfully scanned, and a
+ * tree of WIM dentries has been built in-memory. @a info will point to
+ * ::wimlib_progress_info.scan. */
WIMLIB_PROGRESS_MSG_SCAN_END,
+ /**
+ * File resources are currently being written to the WIM.
+ * @a info will point to ::wimlib_progress_info.write_streams. */
WIMLIB_PROGRESS_MSG_WRITE_STREAMS,
+
+ /**
+ * The metadata resource for each image is about to be written to the
+ * WIM. @a info will not be valid. */
WIMLIB_PROGRESS_MSG_WRITE_METADATA_BEGIN,
+
+ /**
+ * The metadata resource for each image has successfully been writen to
+ * the WIM. @a info will not be valid. */
WIMLIB_PROGRESS_MSG_WRITE_METADATA_END,
+
+ /**
+ * The temporary file has successfully been renamed to the original WIM
+ * file. Only happens when wimlib_overwrite() is called and the
+ * overwrite is not done in-place.
+ * @a info will point to ::wimlib_progress_info.rename. */
WIMLIB_PROGRESS_MSG_RENAME,
+ /** The contents of the WIM are being checked against the integrity
+ * table. Only happens when wimlib_open_wim() is called with the
+ * ::WIMLIB_OPEN_FLAG_CHECK_INTEGRITY flag. @a info will point to
+ * ::wimlib_progress_info.integrity. */
WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY,
+ /** An integrity table is being calculated for the WIM being written.
+ * Only happens when wimlib_write() or wimlib_overwrite() is called with
+ * the ::WIMLIB_WRITE_FLAG_CHECK_INTEGRITY flag. @a info will point to
+ * ::wimlib_progress_info.integrity. */
WIMLIB_PROGRESS_MSG_CALC_INTEGRITY,
+ /** A wimlib_join() operation is in progress. @a info will point to
+ * ::wimlib_progress_info.join. */
WIMLIB_PROGRESS_MSG_JOIN_STREAMS,
+ /** A wimlib_split() operation is in progress, and a new split part is
+ * about to be started. @a info will point to
+ * ::wimlib_progress_info.split. */
WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART,
+
+ /** A wimlib_split() operation is in progress, and a split part has been
+ * finished. @a info will point to ::wimlib_progress_info.split. */
WIMLIB_PROGRESS_MSG_SPLIT_END_PART,
};
+/** A pointer to this union is passed to the user-supplied
+ * ::wimlib_progress_func_t progress function. One (or none) of the structures
+ * contained in this union will be applicable for the operation
+ * (::wimlib_progress_msg) indicated in the first argument to the progress
+ * function. */
union wimlib_progress_info {
- struct {
+
+ /* N.B. I wanted these to be anonymous structs, but Doxygen won't
+ * document them if they aren't given a name... */
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_WRITE_STREAMS. */
+ struct wimlib_progress_info_write_streams {
+ /** Number of bytes that are going to be written for all the
+ * streams combined. This is the amount in uncompressed data.
+ * (The actual number of bytes will be less if the data is being
+ * written compressed.) */
uint64_t total_bytes;
+ /** Number of streams that are going to be written. */
uint64_t total_streams;
+
+ /** Number of uncompressed bytes that have been written so far.
+ * Will be 0 initially, and equal to @a total_bytes at the end.
+ * */
uint64_t completed_bytes;
+
+ /** Number of streams that have been written. Will be 0
+ * initially, and equal to @a total_streams at the end. */
uint64_t completed_streams;
+
+ /** Number of threads that are being used to compress resources
+ * (if applicable). */
unsigned num_threads;
+
+ /** The compression type being used to write the streams; either
+ * ::WIMLIB_COMPRESSION_TYPE_NONE,
+ * ::WIMLIB_COMPRESSION_TYPE_XPRESS, or
+ * ::WIMLIB_COMPRESSION_TYPE_LZX. */
int compression_type;
} write_streams;
- struct {
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_SCAN_BEGIN and
+ * ::WIMLIB_PROGRESS_MSG_SCAN_END. */
+ struct wimlib_progress_info_scan {
+ /** Directory or NTFS volume that is being scanned. */
const char *source;
+
+ /** Path to the file or directory that is about to be scanned,
+ * relative to the root of the image capture or the NTFS volume.
+ * */
+ const char *cur_path;
+
+ /** True iff @a cur_path is being excluded from the image
+ * capture due to the capture configuration file. */
+ bool excluded;
+
+ /** Target path in the WIM. Only valid on messages
+ * ::WIMLIB_PROGRESS_MSG_SCAN_BEGIN and
+ * ::WIMLIB_PROGRESS_MSG_SCAN_END. */
+ const char *wim_target_path;
} scan;
- struct {
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_BEGIN,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS, and
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_END. */
+ struct wimlib_progress_info_extract {
+ /** Number of the image being extracted (1-based). */
int image;
+
+ /** Flags passed to to wimlib_extract_image() */
+ int extract_flags;
+
+ /** Full path to the WIM file being extracted. */
+ const char *wimfile_name;
+
+ /** Name of the image being extracted. */
const char *image_name;
+
+ /** Directory or NTFS volume to which the image is being
+ * extracted. */
const char *target;
+
+ /** Current dentry being extracted. (Valid only if message is
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY.) */
+ const char *cur_path;
+
+ /** Number of bytes of uncompressed data that will be extracted.
+ * Takes into account hard links (they are not counted for each
+ * link.)
+ * */
uint64_t total_bytes;
+
+ /** Number of bytes that have been written so far. Will be 0
+ * initially, and equal to @a total_bytes at the end. */
uint64_t completed_bytes;
+
+ /** Number of streams that will be extracted. This may more or
+ * less than the number of "files" to be extracted due to
+ * special cases (hard links, symbolic links, and alternate data
+ * streams.) */
uint64_t num_streams;
} extract;
- struct {
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_RENAME. */
+ struct wimlib_progress_info_rename {
+ /** Name of the temporary file that the WIM was written to. */
const char *from;
+
+ /** Name of the original WIM file to which the temporary file is
+ * being renamed. */
const char *to;
} rename;
- struct {
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY and
+ * ::WIMLIB_PROGRESS_MSG_CALC_INTEGRITY. */
+ struct wimlib_progress_info_integrity {
+ /** Number of bytes from the end of the WIM header to the end of
+ * the lookup table (the area that is covered by the SHA1
+ * integrity checks.) */
uint64_t total_bytes;
+
+ /** Number of bytes that have been SHA1-summed so far. Will be
+ * 0 initially, and equal @a total_bytes at the end. */
uint64_t completed_bytes;
- uint32_t completed_chunks;
+
+ /** Number of chunks that the checksummed region is divided
+ * into. */
uint32_t total_chunks;
+
+ /** Number of chunks that have been SHA1-summed so far. Will
+ * be 0 initially, and equal to @a total_chunks at the end. */
+ uint32_t completed_chunks;
+
+ /** Size of the chunks used for the integrity calculation. */
uint32_t chunk_size;
+
+ /** Filename of the WIM (only valid if the message is
+ * ::WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY). */
const char *filename;
} integrity;
- struct {
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_JOIN_STREAMS. */
+ struct wimlib_progress_info_join {
+ /** Total number of bytes of compressed data contained in all
+ * the split WIM part's file and metadata resources. */
uint64_t total_bytes;
+
+ /** Number of bytes that have been copied to the joined WIM so
+ * far. Will be 0 initially, and equal to @a total_bytes at the
+ * end. */
uint64_t completed_bytes;
+
+ /** Number of split WIM parts that have had all their file and
+ * metadata resources copied over to the joined WIM so far. */
unsigned completed_parts;
+
+ /** Number of split WIM parts. */
unsigned total_parts;
- const char *filename;
} join;
- struct {
+
+ /** Valid on messages ::WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART and
+ * ::WIMLIB_PROGRESS_MSG_SPLIT_END_PART. */
+ struct wimlib_progress_info_split {
+ /** Total size of the original WIM's file and metadata resources
+ * (compressed). */
+ uint64_t total_bytes;
+
+ /** Number of bytes of file and metadata resources that have
+ * been copied out of the original WIM so far. Will be 0
+ * initially, and equal to @a total_bytes at the end. */
uint64_t completed_bytes;
+
+ /** Number of the split WIM part that is about to be started
+ * (::WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART) or has just been
+ * finished (::WIMLIB_PROGRESS_MSG_SPLIT_END_PART). */
unsigned cur_part_number;
+
+ /** Name of the split WIM part that is about to be started
+ * (::WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART) or has just been
+ * finished (::WIMLIB_PROGRESS_MSG_SPLIT_END_PART). */
const char *part_name;
- uint64_t total_bytes;
} split;
};
/** A user-supplied function that will be called periodically during certain WIM
- * operations. The first argument specifies the type of operation that is being
+ * operations. The first argument will be the type of operation that is being
* performed or is about to be started or has been completed. The second
- * argument is a pointer to one of a number of structures depending on the first
- * argument. It may be @c NULL for some message types.
+ * argument will be a pointer to one of a number of structures depending on the
+ * first argument. It may be @c NULL for some message types.
*
- * The return value
- * is currently ignored, but it may do something in the future. (Set it to 0
- * for now.)
+ * The return value of the progress function is currently ignored, but it may do
+ * something in the future. (Set it to 0 for now.)
*/
typedef int (*wimlib_progress_func_t)(enum wimlib_progress_msg msg_type,
const union wimlib_progress_info *info);
+/** An array of these structures is passed to wimlib_add_image_multisource() to
+ * specify the sources from which to create a WIM image. */
+struct wimlib_capture_source {
+ /** Absolute or relative path to a file or directory on the external
+ * filesystem to be included in the WIM image. */
+ char *fs_source_path;
+
+ /** Destination path in the WIM image. Leading and trailing slashes are
+ * ignored. The empty string or @c NULL means the root directory of the
+ * WIM image. */
+ char *wim_target_path;
+
+ /** Reserved; set to 0. */
+ long reserved;
+};
+
+
/*****************************
* WIMLIB_ADD_IMAGE_FLAG_* *
*****************************/
-/** Directly capture a NTFS volume, not a generic directory. */
+/** Directly capture a NTFS volume rather than a generic directory. This flag
+ * cannot be combined with ::WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE or
+ * ::WIMLIB_ADD_IMAGE_FLAG_UNIX_DATA. */
#define WIMLIB_ADD_IMAGE_FLAG_NTFS 0x00000001
/** Follow symlinks; archive and dump the files they point to. Cannot be used
* with ::WIMLIB_ADD_IMAGE_FLAG_NTFS. */
#define WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE 0x00000002
-/** Print the name of each file or directory as it is scanned to be included in
- * the WIM image. */
+/** Call the progress function with the message
+ * ::WIMLIB_PROGRESS_MSG_SCAN_DENTRY when each directory or file is starting to
+ * be scanned. */
#define WIMLIB_ADD_IMAGE_FLAG_VERBOSE 0x00000004
/** Mark the image being added as the bootable image of the WIM. */
#define WIMLIB_ADD_IMAGE_FLAG_BOOT 0x00000008
+/** Store the UNIX owner, group, and mode. This is done by adding a special
+ * alternate data stream to each regular file, symbolic link, and directory to
+ * contain this information. Please note that this flag is for convenience
+ * only; Microsoft's version of imagex.exe will not understand this special
+ * information. This flag cannot be combined with ::WIMLIB_ADD_IMAGE_FLAG_NTFS.
+ * */
+#define WIMLIB_ADD_IMAGE_FLAG_UNIX_DATA 0x00000010
+
/******************************
* WIMLIB_EXPORT_FLAG_* *
******************************/
* WIMLIB_EXTRACT_FLAG_* *
******************************/
-/** Apply the image directly to a NTFS volume, not a generic directory. */
+/** Extract the image directly to a NTFS volume rather than a generic directory.
+ * */
#define WIMLIB_EXTRACT_FLAG_NTFS 0x00000001
/** When identical files are extracted from the WIM, always hard link them
- * together. Not valid with ::WIMLIB_EXTRACT_FLAG_NTFS. */
+ * together. Cannot be used with ::WIMLIB_EXTRACT_FLAG_NTFS. */
#define WIMLIB_EXTRACT_FLAG_HARDLINK 0x00000002
/** When identical files are extracted from the WIM, always symlink them
- * together. Not valid with ::WIMLIB_EXTRACT_FLAG_NTFS. */
+ * together. Cannot be used with ::WIMLIB_EXTRACT_FLAG_NTFS. */
#define WIMLIB_EXTRACT_FLAG_SYMLINK 0x00000004
-/** Print the name of each file as it is extracted from the WIM image. */
+/** Call the progress function with the argument
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY each time a file or directory is
+ * extracted. Note: these calls will be interspersed with calls for the message
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS. */
#define WIMLIB_EXTRACT_FLAG_VERBOSE 0x00000008
/** Read the WIM file sequentially while extracting the image. */
#define WIMLIB_EXTRACT_FLAG_SEQUENTIAL 0x00000010
+/** Extract special UNIX data captured with ::WIMLIB_ADD_IMAGE_FLAG_UNIX_DATA.
+ * Cannot be used with ::WIMLIB_EXTRACT_FLAG_NTFS. */
+#define WIMLIB_EXTRACT_FLAG_UNIX_DATA 0x00000020
+
/******************************
* WIMLIB_MOUNT_FLAG_* *
******************************/
-/** Mount the WIM read-write. */
+/** Mount the WIM image read-write rather than the default of read-only. */
#define WIMLIB_MOUNT_FLAG_READWRITE 0x00000001
-/** For debugging only. (This passes the @c -d flag to @c fuse_main()).*/
+/** Enable FUSE debugging by passing the @c -d flag to @c fuse_main().*/
#define WIMLIB_MOUNT_FLAG_DEBUG 0x00000002
-/** Do not allow accessing alternate data streams. */
+/** Do not allow accessing alternate data streams in the mounted WIM image. */
#define WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE 0x00000004
-/** Access alternate data streams through extended file attributes. This is the
- * default mode. */
+/** Access alternate data streams in the mounted WIM image through extended file
+ * attributes. This is the default mode. */
#define WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR 0x00000008
-/** Access alternate data streams by specifying the file name, a colon, then the
- * alternate file stream name. */
+/** Access alternate data streams in the mounted WIM image by specifying the
+ * file name, a colon, then the alternate file stream name. */
#define WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS 0x00000010
+/** Use UNIX file owners, groups, and modes if available in the WIM (see
+ * ::WIMLIB_ADD_IMAGE_FLAG_UNIX_DATA). */
+#define WIMLIB_MOUNT_FLAG_UNIX_DATA 0x00000020
+
+/** Allow other users to see the mounted filesystem. (this passes the @c
+ * allow_other option to FUSE mount) */
+#define WIMLIB_MOUNT_FLAG_ALLOW_OTHER 0x00000040
+
/******************************
* WIMLIB_OPEN_FLAG_* *
******************************/
-/** See documentation for wimlib_open_wim(). */
+/** Verify the WIM contents against the WIM's integrity table, if present. */
#define WIMLIB_OPEN_FLAG_CHECK_INTEGRITY 0x00000001
-/** See documentation for wimlib_open_wim(). */
+/** Do not issue an error if the WIM is part of a split WIM. */
#define WIMLIB_OPEN_FLAG_SPLIT_OK 0x00000002
/******************************
* WIMLIB_UNMOUNT_FLAG_* *
******************************/
-/** Include an integrity table in the new WIM being written during the unmount.
- * Ignored for read-only mounts. */
+/** Include an integrity table in the WIM after it's been unmounted. Ignored
+ * for read-only mounts. */
#define WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY 0x00000001
-/** Unless this flag is given, changes to a mounted WIM are discarded. Ignored
- * for read-only mounts. */
+/** Unless this flag is given, changes to a read-write mounted WIM are
+ * discarded. Ignored for read-only mounts. */
#define WIMLIB_UNMOUNT_FLAG_COMMIT 0x00000002
+/** See ::WIMLIB_WRITE_FLAG_REBUILD */
+#define WIMLIB_UNMOUNT_FLAG_REBUILD 0x00000004
+
+/** See ::WIMLIB_WRITE_FLAG_RECOMPRESS */
+#define WIMLIB_UNMOUNT_FLAG_RECOMPRESS 0x00000008
+
/******************************
* WIMLIB_WRITE_FLAG_* *
******************************/
* (Applies to wimlib_overwrite(), not wimlib_write()). */
#define WIMLIB_WRITE_FLAG_REBUILD 0x00000002
-/** Do not copy compressed resources between WIMs if the compression type is the
- * same. Instead, recompress them. */
+/** Recompress all resources, even if they could otherwise be copied from a
+ * different WIM with the same compression type (in the case of
+ * wimlib_export_image() being called previously). */
#define WIMLIB_WRITE_FLAG_RECOMPRESS 0x00000004
/** Call fsync() when the WIM file is closed */
#define WIMLIB_WRITE_FLAG_FSYNC 0x00000008
-/** Specifying this flag overrides the default behavior of wimlib_overwrite()
+/* Specifying this flag overrides the default behavior of wimlib_overwrite()
* after one or more calls to wimlib_delete_image(), which is to rebuild the
- * entire WIM. If you specifiy this flag to wimlib_overwrite() instead, only
- * minimal changes to correctly remove the image from the WIM will be taken. In
- * particular, all streams will be left alone, even if they are no longer
- * references. This is probably not what you want, because almost no space will
- * be spaced by deleting an image in this way. */
+ * entire WIM.
+ *
+ * If you specifiy this flag to wimlib_overwrite(), only minimal changes to
+ * correctly remove the image from the WIM will be taken. In particular, all
+ * streams will be left alone, even if they are no longer referenced. This is
+ * probably not what you want, because almost no space will be spaced by
+ * deleting an image in this way. */
#define WIMLIB_WRITE_FLAG_SOFT_DELETE 0x00000010
/**
* See the documentation for each wimlib function to see specifically what error
* codes can be returned by a given function, and what they mean.
*/
+/* Note: these are currently in alphabetic order, but new error codes should be
+ * added at the end to maintain a compatible ABI, except when it's being broken
+ * anyway. */
enum wimlib_error_code {
WIMLIB_ERR_SUCCESS = 0,
+ WIMLIB_ERR_ALREADY_LOCKED,
WIMLIB_ERR_COMPRESSED_LOOKUP_TABLE,
WIMLIB_ERR_DECOMPRESSION,
WIMLIB_ERR_DELETE_STAGING_DIR,
+ WIMLIB_ERR_FILESYSTEM_DAEMON_CRASHED,
WIMLIB_ERR_FORK,
WIMLIB_ERR_FUSE,
WIMLIB_ERR_FUSERMOUNT,
+ WIMLIB_ERR_ICONV_NOT_AVAILABLE,
WIMLIB_ERR_IMAGE_COUNT,
WIMLIB_ERR_IMAGE_NAME_COLLISION,
WIMLIB_ERR_INTEGRITY,
WIMLIB_ERR_INVALID_INTEGRITY_TABLE,
WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY,
WIMLIB_ERR_INVALID_PARAM,
+ WIMLIB_ERR_INVALID_PART_NUMBER,
WIMLIB_ERR_INVALID_RESOURCE_HASH,
WIMLIB_ERR_INVALID_RESOURCE_SIZE,
WIMLIB_ERR_INVALID_SECURITY_DATA,
+ WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE,
+ WIMLIB_ERR_INVALID_UTF8_STRING,
+ WIMLIB_ERR_INVALID_UTF16_STRING,
+ WIMLIB_ERR_LIBXML_UTF16_HANDLER_NOT_AVAILABLE,
WIMLIB_ERR_LINK,
WIMLIB_ERR_MKDIR,
WIMLIB_ERR_MQUEUE,
WIMLIB_ERR_UNSUPPORTED,
WIMLIB_ERR_WRITE,
WIMLIB_ERR_XML,
+ WIMLIB_ERR_INVALID_OVERLAY,
};
-/** Used to indicate that no WIM image is currently selected. */
+/** Used to indicate that no WIM image or an invalid WIM image. */
#define WIMLIB_NO_IMAGE 0
/** Used to specify all images in the WIM. */
#define WIMLIB_ALL_IMAGES (-1)
/**
- * Adds an image to a WIM file from a directory tree on disk.
+ * Adds an image to a WIM file from an on-disk directory tree or NTFS volume.
*
- * The directory tree is read immediately for the purpose of constructing a
- * directory entry tree in-memory. Also, all files are read to calculate their
- * SHA1 message digests. However, because the directory tree may contain a very
- * large amount of data, the files themselves are not read into memory
- * permanently, and instead references to their paths saved. The files are then
- * read on-demand if wimlib_write() or wimlib_overwrite() is called.
+ * The directory tree of NTFS volume is read immediately for the purpose of
+ * constructing a directory entry tree in-memory. Also, all files are read to
+ * calculate their SHA1 message digests. However, because the directory tree
+ * may contain a very large amount of data, the files themselves are not read
+ * into memory permanently, and instead references to their paths saved. The
+ * files are then read on-demand if wimlib_write() or wimlib_overwrite() is
+ * called.
*
- * Please note that @b no changes are committed to the underlying WIM file (if
+ * See the manual page for the @c imagex program for more information about the
+ * "normal" capture mode versus the NTFS capture mode (entered by providing the
+ * flag ::WIMLIB_ADD_IMAGE_FLAG_NTFS).
+ *
+ * Note that @b no changes are committed to the underlying WIM file (if
* any) until wimlib_write() or wimlib_overwrite() is called.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file to which the image will be
* added.
- * @param dir
- * A path to a directory in the outside filesystem. It will become the
- * root directory for the WIM image.
+ * @param source
+ * A path to a directory or unmounted NTFS volume that will be captured as
+ * a WIM image.
* @param name
* The name to give the image. This must be non-@c NULL.
* @param config
* NULL, a default string is used. Please see the manual page for
* <b>imagex capture</b> for more information.
* @param config_len
- * Length of the string @a config in bytes. Ignored if @a config is @c
- * NULL.
- *
+ * Length of the string @a config in bytes, not including an optional
+ * null-terminator. Ignored if @a config is @c NULL.
* @param add_image_flags
- * Bitwise OR of flags prefixed with WIMLIB_ADD_IMAGE_FLAG. If
- * ::WIMLIB_ADD_IMAGE_FLAG_BOOT is specified, the image in @a wim that is
- * marked as bootable is changed to the one being added. If
- * ::WIMLIB_ADD_IMAGE_FLAG_VERBOSE is specified, the name of each file is
- * printed as it is scanned or captured. If
- * ::WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE is specified, the files or
- * directories pointed to by symbolic links are archived rather than the
- * symbolic links themselves.
- *
+ * Bitwise OR of flags prefixed with WIMLIB_ADD_IMAGE_FLAG.
* @param progress_func
* If non-NULL, a function that will be called periodically with the
* progress of the current operation.
* was called.
*
* @retval ::WIMLIB_ERR_IMAGE_NAME_COLLISION
- * There is already an image named @a name in @a w.
+ * There is already an image named @a name in @a wim.
+ * @retval ::WIMLIB_ERR_INVALID_CAPTURE_CONFIG
+ * @a config was not @c NULL and did not specify a valid image capture
+ * configuration.
* @retval ::WIMLIB_ERR_INVALID_PARAM
* @a dir was @c NULL, @a name was @c NULL, or @a name was the empty string.
* @retval ::WIMLIB_ERR_NOMEM
* Failed to allocate needed memory.
* @retval ::WIMLIB_ERR_NOTDIR
- * @a dir is not a directory.
+ * @a source is not a directory (only if ::WIMLIB_ADD_IMAGE_FLAG_NTFS was
+ * not specified in @a add_image_flags).
+ * @retval ::WIMLIB_ERR_NTFS_3G
+ * An error was returned from a libntfs-3g function when the NTFS volume
+ * was being opened, scanned, or closed (only if
+ * ::WIMLIB_ADD_IMAGE_FLAG_NTFS was specified in @a add_image_flags).
* @retval ::WIMLIB_ERR_OPEN
* Failed to open a file or directory in the directory tree rooted at @a
- * dir.
+ * source (only if ::WIMLIB_ADD_IMAGE_FLAG_NTFS was not specified in @a
+ * add_image_flags).
* @retval ::WIMLIB_ERR_READ
- * Failed to read a file in the directory tree rooted at @a dir.
+ * Failed to read a file in the directory tree rooted at @a source (only if
+ * ::WIMLIB_ADD_IMAGE_FLAG_NTFS was not specified in @a add_image_flags).
* @retval ::WIMLIB_ERR_SPECIAL_FILE
- * The directory tree rooted at @a dir contains a special file that is not
- * a directory, regular file, or symbolic link.
+ * The directory tree rooted at @a source contains a special file that is
+ * not a directory, regular file, or symbolic link. This currently can
+ * only be returned if ::WIMLIB_ADD_IMAGE_FLAG_NTFS was not specified in @a
+ * add_image_flags, but it may be returned for unsupported NTFS files in
+ * the future.
* @retval ::WIMLIB_ERR_STAT
* Failed obtain the metadata for a file or directory in the directory tree
- * rooted at @a dir.
+ * rooted at @a source (only if ::WIMLIB_ADD_IMAGE_FLAG_NTFS was not
+ * specified in @a add_image_flags).
* @retval ::WIMLIB_ERR_SPLIT_UNSUPPORTED
* @a wim is part of a split WIM. Adding an image to a split WIM is
* unsupported.
+ * @retval ::WIMLIB_ERR_UNSUPPORTED
+ * ::WIMLIB_ADD_IMAGE_FLAG_NTFS was specified in @a add_image_flags, but
+ * wimlib was configured with the @c --without-ntfs-3g flag.
*/
-extern int wimlib_add_image(WIMStruct *wim, const char *dir,
+extern int wimlib_add_image(WIMStruct *wim, const char *source,
const char *name, const char *config,
size_t config_len, int add_image_flags,
wimlib_progress_func_t progress_func);
+/** This function is equivalent to wimlib_add_image() except it allows for
+ * multiple sources to be combined into a single WIM image. This is done by
+ * specifying the @a sources and @a num_sources parameters instead of the @a
+ * source parameter of wimlib_add_image(). The rest of the parameters are the
+ * same as wimlib_add_image(). See the documentation for <b>imagex capture</b>
+ * for full details on how this mode works.
+ *
+ * Additional note: @a sources is not a @c const parameter and you cannot
+ * assume that its contents are valid after this function returns. You must
+ * save pointers to the strings in these structures if you need to free them
+ * later, and/or save copies if needed.
+ *
+ * In addition to the error codes that wimlib_add_image() can return,
+ * wimlib_add_image_multisource() can return ::WIMLIB_ERR_INVALID_OVERLAY
+ * when trying to overlay a non-directory on a directory or when otherwise
+ * trying to overlay multiple conflicting files to the same location in the WIM
+ * image. It will also return ::WIMLIB_ERR_INVALID_PARAM if
+ * ::WIMLIB_ADD_IMAGE_FLAG_NTFS was specified in @a add_image_flags but there
+ * was not exactly one capture source with the target being the root directory.
+ * (In this respect, there is no advantage to using
+ * wimlib_add_image_multisource() instead of wimlib_add_image() when requesting
+ * NTFS mode.) */
+extern int wimlib_add_image_multisource(WIMStruct *w,
+ struct wimlib_capture_source *sources,
+ size_t num_sources,
+ const char *name,
+ const char *config_str,
+ size_t config_len,
+ int add_image_flags,
+ wimlib_progress_func_t progress_func);
+
/**
- * Creates a WIMStruct for a new WIM file.
+ * Creates a ::WIMStruct for a new WIM file.
+ *
+ * This only creates an in-memory structure for a WIM that initially contains no
+ * images. No on-disk file is created until wimlib_write() is called.
*
* @param ctype
* The type of compression to be used in the new WIM file. Must be
* either the source image or the destination image without an intervening call
* to a function that un-shares the images, such as wimlib_free() on @a
* dest_wim, or wimlib_delete_image() on either the source or destination image.
- * Furthermore, you may not call wimlib_free() or wimlib_overwrite() on @a
- * src_wim before any calls to functions such as wimlib_write() on @a dest_wim
- * because @a dest_wim will have references back to @a src_wim.
+ * Furthermore, you may not call wimlib_free() on @a src_wim before calling
+ * wimlib_write() or wimlib_overwrite() on @a dest_wim because @a dest_wim will
+ * have references back to @a src_wim.
*
* Previous versions of this function left @a dest_wim in an indeterminate state
* on failure. This is no longer the case; all changes to @a dest_wim made by
* been added by wimlib_add_image(). This is no longer the case; you may now
* export an image regardless of how it was added.
*
- * Regardless of whether this function succeeds or fails, no user-visible
- * changes are made to @a src_wim.
+ * Regardless of whether this function succeeds or fails, no changes are made to
+ * @a src_wim.
*
- * Please note that @b no changes are committed to the underlying WIM file (if
- * any) until wimlib_write() or wimlib_overwrite() is called.
+ * Please note that no changes are committed to the underlying WIM file of @a
+ * dest_wim (if any) until wimlib_write() or wimlib_overwrite() is called.
*
* @param src_wim
* Pointer to the ::WIMStruct for a stand-alone WIM or part 1 of a split
* Pointer to the ::WIMStruct for a WIM file that will receive the images
* being exported.
* @param dest_name
- * The name to give the exported image in the new WIM file. If left @c NULL,
- * the name from @a src_wim is used. This parameter must be left @c NULL
- * if @a src_image is ::WIMLIB_ALL_IMAGES and @a src_wim contains more than one
- * image; in that case, the names are all taken from the @a src_wim.
+ * The name to give the exported image in the new WIM file. If left @c
+ * NULL, the name from @a src_wim is used. This parameter must be left @c
+ * NULL if @a src_image is ::WIMLIB_ALL_IMAGES and @a src_wim contains more
+ * than one image; in that case, the names are all taken from the @a
+ * src_wim. (This is allowed even if one or more images being exported has
+ * no name.)
* @param dest_description
* The description to give the exported image in the new WIM file. If left
* @c NULL, the description from the @a src_wim is used. This parameter must
* be left @c NULL if @a src_image is ::WIMLIB_ALL_IMAGES and @a src_wim contains
* more than one image; in that case, the descriptions are all taken from
- * @a src_wim.
+ * @a src_wim. (This is allowed even if one or more images being exported
+ * has no description.)
* @param export_flags
* ::WIMLIB_EXPORT_FLAG_BOOT if the image being exported is to be made
* bootable, or 0 if which image is marked as bootable in the destination
* ::WIMLIB_ALL_IMAGES, @a src_wim contains multiple images, and no images in
* @a src_wim are marked as bootable; or @a dest_name and/or @a
* dest_description were non-<code>NULL</code>, @a src_image was
- * ::WIMLIB_ALL_IMAGES, and @a src_wim contains multiple images; or @a src_wim
- * or @a dest_wim was @c NULL.
+ * ::WIMLIB_ALL_IMAGES, and @a src_wim contains multiple images.
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_SIZE
* The metadata resource for @a src_image in @a src_wim is invalid.
* @retval ::WIMLIB_ERR_INVALID_SECURITY_DATA
wimlib_progress_func_t progress_func);
/**
- * Extracts an image, or all images, from a standalone or split WIM file.
+ * Extracts an image, or all images, from a standalone or split WIM file to a
+ * directory or a NTFS volume.
+ *
+ * Please see the manual page for the @c imagex program for more information
+ * about the "normal" extraction mode versus the NTFS extraction mode
+ * (entered by providing flag ::WIMLIB_EXTRACT_FLAG_NTFS).
+ *
+ * Extraction is done with one thread.
+ *
+ * All extracted data is SHA1-summed, and ::WIMLIB_ERR_INVALID_RESOURCE_HASH is
+ * returned if any resulting SHA1 message digests do not match the values
+ * provided in the WIM file. Therefore, if this function is successful, you can
+ * be fairly sure that any compressed data in the WIM was uncompressed
+ * correctly.
*
* @param wim
* Pointer to the ::WIMStruct for a standalone WIM file, or part 1 of a
* @param target
* Directory to extract the WIM image(s) to (created if it does not already
* exist); or, with ::WIMLIB_EXTRACT_FLAG_NTFS in @a extract_flags, the
- * name of the NTFS volume to extract the image to.
+ * path to the unmounted NTFS volume to extract the image to.
* @param extract_flags
* Bitwise OR of the flags prefixed with WIMLIB_EXTRACT_FLAG.
- *
+ * <br/> <br/>
* If ::WIMLIB_EXTRACT_FLAG_NTFS is specified, @a target is interpreted as
* a NTFS volume to extract the image to. The volume will be opened using
* NTFS-3g and the image will be extracted to the root of the NTFS volume.
* Otherwise, @a target is interpreted as a directory to extract the
* image(s) to.
- *
+ * <br/> <br/>
* If ::WIMLIB_EXTRACT_FLAG_NTFS is not specified, one or none of
* ::WIMLIB_EXTRACT_FLAG_HARDLINK or ::WIMLIB_EXTRACT_FLAG_SYMLINK may be
* specified. These flags cause extracted files that are identical to be
* If ::WIMLIB_ALL_IMAGES is provided as the @a image parameter, files may be
* hardlinked or symlinked across images if a file is found to occur in
* more than one image.
- *
- * You may also specify the flag ::WIMLIB_EXTRACT_FLAG_VERBOSE to cause
- * informational messages to be printed during the extraction, including
- * the name of each extracted file or directory.
- *
- * If ::WIMLIB_EXTRACT_FLAG_SEQUENTIAL is specified, streams are read from
- * the WIM sequentially, if possible. If ::WIMLIB_ALL_IMAGES is specified,
+ * <br/> <br/>
+ * You may also specify the flag ::WIMLIB_EXTRACT_FLAG_VERBOSE to print the
+ * name of each file or directory as it is extracted.
+ * <br/> <br/>
+ * If ::WIMLIB_EXTRACT_FLAG_SEQUENTIAL is specified, data is read from the
+ * WIM sequentially, if possible. If ::WIMLIB_ALL_IMAGES is specified,
* each image is considered separately with regards to the sequential
* order. It is also possible for alternate data streams to break the
* sequential order (this only applies if ::WIMLIB_EXTRACT_FLAG_NTFS is
* @retval ::WIMLIB_ERR_INVALID_DENTRY
* A directory entry in the metadata resource for @a image in @a wim is
* invalid.
+ * @retval ::WIMLIB_ERR_INVALID_PARAM
+ * @a target was @c NULL, or both ::WIMLIB_EXTRACT_FLAG_HARDLINK and
+ * ::WIMLIB_EXTRACT_FLAG_SYMLINK were specified in @a extract_flags; or
+ * both ::WIMLIB_EXTRACT_FLAG_NTFS and either
+ * ::WIMLIB_EXTRACT_FLAG_HARDLINK or ::WIMLIB_EXTRACT_FLAG_SYMLINK were
+ * specified in @a extract_flags; or ::WIMLIB_EXTRACT_FLAG_NTFS was
+ * specified in @a extract_flags and @a image was ::WIMLIB_ALL_IMAGES; or
+ * both ::WIMLIB_EXTRACT_FLAG_NTFS and ::WIMLIB_EXTRACT_FLAG_UNIX_DATA were
+ * specified in @a extract_flag.
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_HASH
* The SHA1 message digest of an extracted stream did not match the SHA1
* message digest given in the WIM file.
* @retval ::WIMLIB_ERR_INVALID_SECURITY_DATA
* The security data for @a image in @a wim is invalid.
* @retval ::WIMLIB_ERR_LINK
- * Failed to create a symbolic link or a hard link.
+* Failed to create a symbolic link or a hard link (only if
+ * ::WIMLIB_EXTRACT_FLAG_NTFS was not specified in @a extract_flags).
* @retval ::WIMLIB_ERR_MKDIR
- * Failed create a needed directory.
+ * Failed create a needed directory (only if ::WIMLIB_EXTRACT_FLAG_NTFS was
+ * not specified in @a extract_flags).
* @retval ::WIMLIB_ERR_NOMEM
* Failed to allocate needed memory.
+ * @retval ::WIMLIB_ERR_NTFS_3G
+ * An error was returned from a libntfs-3g function while the WIM image was
+ * being extracted to the NTFS volume (only if ::WIMLIB_EXTRACT_FLAG_NTFS
+ * was specified in @a extract_flags).
* @retval ::WIMLIB_ERR_OPEN
- * Could not open one of the files being extracted for writing.
+ * Could not open one of the files being extracted for writing (only if
+ * ::WIMLIB_EXTRACT_FLAG_NTFS was not specified in @a extract_flags).
* @retval ::WIMLIB_ERR_READ
* A unexpected end-of-file or read error occurred when trying to read data
* from the WIM file associated with @a wim.
* split WIM because they do not include all the parts of the original WIM,
* there are duplicate parts, or not all the parts have the same GUID and
* compression type.
+ * @retval ::WIMLIB_ERR_UNSUPPORTED
+ * ::WIMLIB_EXTRACT_FLAG_NTFS was specified in @a extract_flags, but wimlib
+ * was configured with the @c --without-ntfs-3g flag.
* @retval ::WIMLIB_ERR_WRITE
- * Failed to write a file being extracted.
+ * Failed to write a file being extracted (only if
+ * ::WIMLIB_EXTRACT_FLAG_NTFS was not specified in @a extract_flags).
*/
extern int wimlib_extract_image(WIMStruct *wim, int image,
const char *target, int extract_flags,
wimlib_progress_func_t progress_func);
/**
- * Extracts the XML data for a WIM file to a file stream. Every WIM file
+ * Extracts the XML data of a WIM file to a file stream. Every WIM file
* includes a string of XML that describes the images contained in the WIM.
* This function works on standalone WIMs as well as split WIM parts.
*
* @return 0 on success; nonzero on error.
* @retval ::WIMLIB_ERR_WRITE
* Failed to completely write the XML data to @a fp.
+ * @retval ::WIMLIB_ERR_INVALID_PARAM
+ * @a wim is not a ::WIMStruct that was created by wimlib_open_wim().
*/
extern int wimlib_extract_xml_data(WIMStruct *wim, FILE *fp);
extern void wimlib_free(WIMStruct *wim);
/**
- * Finds which image in a WIM is bootable.
+ * Returns the index of the bootable image of the WIM.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file.
extern int wimlib_get_boot_idx(const WIMStruct *wim);
/**
- * Gets the compression type used in the WIM.
+ * Returns the compression type used in the WIM.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file
extern int wimlib_get_compression_type(const WIMStruct *wim);
/**
- * Converts a compression type enumeration value into a string.
+ * Converts a ::wimlib_compression_type value into a string.
*
* @param ctype
* ::WIMLIB_COMPRESSION_TYPE_NONE, ::WIMLIB_COMPRESSION_TYPE_LZX,
* string is in library-internal memory and may not be modified or freed;
* in addition, the string will become invalid if the name of the image is
* changed, the image is deleted, or the ::WIMStruct is destroyed.
+ *
+ * If @a wim was read with wimlib_open_wim(), it is allowed for image(s) in
+ * the WIM to be unnamed, in which case an empty string will be returned
+ * when the corresponding name is requested.
*/
extern const char *wimlib_get_image_name(const WIMStruct *wim, int image);
/**
- * Gets the number of images contained in the WIM.
+ * Returns the number of images contained in a WIM.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file. It may be either a
extern int wimlib_get_num_images(const WIMStruct *wim);
/**
- * Gets the part number of part of a split WIM.
+ * Returns the part number of a WIM in a split WIM and the total number of parts
+ * of the split WIM.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file.
*/
extern int wimlib_get_part_number(const WIMStruct *wim, int *total_parts_ret);
+/**
+ * Since wimlib 1.2.6: Initialization function for wimlib. This is not
+ * re-entrant. If you are calling wimlib functions concurrently in different
+ * threads, then you must call this function serially first. Otherwise, calling
+ * this function is not required.
+ *
+ * @return 0 on success; nonzero on error.
+ * @retval ::WIMLIB_ERR_NOMEM
+ * Could not allocate memory.
+ * @retval ::WIMLIB_ERR_ICONV_NOT_AVAILABLE
+ * wimlib was configured @c --without-libntfs-3g at compilation time, and
+ * at runtime the @c iconv() set of functions did not seem to be available,
+ * perhaps due to missing files in the C library installation.
+ *
+ * If this function is not called or returns nonzero, then it will not be safe
+ * to use wimlib in multiple threads. Furthermore, a nonzero return value here
+ * indicates that further calls into wimlib will probably fail when they try to
+ * repeat the same initializations.
+ */
+extern int wimlib_global_init();
+
+/**
+ * Since wimlib 1.2.6: Cleanup function for wimlib. This is not re-entrant.
+ * You are not required to call this function, but it will release any global
+ * memory allocated by the library.
+ */
+extern void wimlib_global_cleanup();
+
/**
* Returns true if the WIM has an integrity table.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file.
* @return
- * @c true if the WIM has an integrity table; @c false otherwise.
+ * @c true if the WIM has an integrity table; @c false otherwise. If @a
+ * wim is a ::WIMStruct created with wimlib_create_new_wim() rather than
+ * wimlib_open_wim(), @c false will be returned, even if wimlib_write() has
+ * been called on @a wim with ::WIMLIB_WRITE_FLAG_CHECK_INTEGRITY set.
*/
extern bool wimlib_has_integrity_table(const WIMStruct *wim);
*
* @return
* @c true if there is already an image in @a wim named @a name; @c false
- * if there is no image named @a name in @a wim. (If @a name is @c NULL,
- * @c false is returned.)
+ * if there is no image named @a name in @a wim. If @a name is @c NULL or
+ * the empty string, @c false is returned.
*/
extern bool wimlib_image_name_in_use(const WIMStruct *wim, const char *name);
/**
- * Joins a set of split WIMs into a stand-alone one-part WIM.
+ * Joins a split WIM into a stand-alone one-part WIM.
*
* @param swms
- * An array of strings that give the filenames of all parts of the split
- * WIM.
+ * An array of strings that gives the filenames of all parts of the split
+ * WIM. No specific order is required, but all parts must be included with
+ * no duplicates.
* @param num_swms
* Number of filenames in @a swms.
* @param swm_open_flags
- * Open flags to use when opening the split WIM pats.
+ * ::WIMLIB_OPEN_FLAG_CHECK_INTEGRITY if the integrity of each split WIM
+ * part should be verified, if integrity tables are present. Otherwise,
+ * set to 0.
* @param wim_write_flags
- * Write flags to use when writing the joined WIM.
+ * Bitwise OR of ::WIMLIB_WRITE_FLAG_CHECK_INTEGRITY, and/or ::WIMLIB_WRITE_FLAG_FSYNC.
* @param output_path
* The path to write the one-part WIM to.
* @param progress_func
* the parts of the original WIM, there are duplicate parts, or not all the
* parts have the same GUID and compression type.
*
- * Note that this function merely copies the resources, so it will not check to
- * see if the resources, including the metadata resources, are valid or not
- * (unless ::WIMLIB_WRITE_FLAG_RECOMPRESS is specified).
+ * Note: the WIM's uncompressed and compressed resources are not checksummed
+ * when they are copied from the split WIM parts to the joined WIM, nor are
+ * compressed resources re-compressed.
+ *
+ * Note: wimlib_export_image() can provide similar functionality to
+ * wimlib_join(), since it is possible to export all images from a split WIM.
*/
-extern int wimlib_join(const char **swms, unsigned num_swms,
+extern int wimlib_join(const char * const *swms, unsigned num_swms,
const char *output_path, int swm_open_flags,
int wim_write_flags,
wimlib_progress_func_t progress_func);
/**
* Mounts an image in a WIM file on a directory read-only or read-write.
*
- * A daemon will be forked to service the filesystem. In other words, this
- * function returns @b before the image is unmounted.
+ * Unless ::WIMLIB_MOUNT_FLAG_DEBUG is specified or an early error occurs, the
+ * process shall be daemonized.
*
- * If the mount is read-write, modifications to the WIM are staged in a staging
- * directory.
+ * If the mount is read-write (::WIMLIB_MOUNT_FLAG_READWRITE specified),
+ * modifications to the WIM are staged in a temporary directory.
*
- * wimlib_mount_image() may be called from multiple threads without intervening calls
- * to wimlib_unmount_image(), provided that different ::WIMStruct's are used. (This
- * was not the case for versions of this library 1.0.3 and earlier.)
+ * It is safe to mount multiple images from the same WIM file read-only at the
+ * same time, but only if different ::WIMStruct's are used. It is @b not safe
+ * to mount multiple images from the same WIM file read-write at the same time.
*
* wimlib_mount_image() cannot be used on an image that was exported with
* wimlib_export_image() while the dentry trees for both images are still in
- * memory. In addition, wimlib_mount_image() may not be used to mount an image that
- * has just been added with wimlib_add_image() or
- * wimlib_add_image_from_ntfs_volume(), unless the WIM has been written and read
- * into a new ::WIMStruct.
+ * memory. In addition, wimlib_mount_image() may not be used to mount an image
+ * that has just been added with wimlib_add_image(), unless the WIM has been
+ * written and read into a new ::WIMStruct.
*
* @param wim
- * Pointer to the ::WIMStruct for the WIM file to be mounted.
+ * Pointer to the ::WIMStruct containing the image to be mounted.
* @param image
- * The number of the image to mount, numbered from 1. It must be an
- * existing, single image.
+ * The number of the image to mount, indexed starting from it. It must be
+ * an existing, single image.
* @param dir
- * The path to an existing directory to mount the image on.
+ * The path to an existing empty directory to mount the image on.
* @param mount_flags
- * Bitwise OR of the flags prefixed with WIMLIB_MOUNT_FLAG. If
- * ::WIMLIB_MOUNT_FLAG_READWRITE is given, the WIM is mounted read-write
- * rather than the default of read-only. The interface to the WIM named
- * data streams is specified by exactly one of
- * ::WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE,
+ * Bitwise OR of the flags prefixed with WIMLIB_MOUNT_FLAG.
+ * <br/><br/>
+ * If ::WIMLIB_MOUNT_FLAG_READWRITE is given, the WIM is mounted read-write
+ * rather than the default of read-only.
+ * <br/> <br/>
+ * WIMs may contain named (alternate) data streams, which are a somewhat
+ * obscure NTFS feature. They can be read and written on a mounted WIM
+ * through one of several interfaces. The interface to use if specified by
+ * exactly one of ::WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE,
* ::WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR, or
* ::WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS. The default interface is
* the XATTR interface.
* Number of additional WIM parts provided in the @a additional_swms array.
* This number should be one less than the total number of parts in the
* split WIM. Set to 0 if the WIM is a standalone WIM.
+ * @param staging_dir
+ * If non-NULL, the name of a directory in which the staging directory will
+ * be created. Ignored if ::WIMLIB_MOUNT_FLAG_READWRITE is not specified
+ * in @a mount_flags. If left @c NULL, the staging directory is created in
+ * the same directory as the WIM file that @a wim was originally read from.
*
* @return 0 on success; nonzero on error.
+ *
+ * @retval ::WIMLIB_ERR_ALREADY_LOCKED
+ * A read-write mount was requested, but an an exclusive advisory lock on
+ * the on-disk WIM file could not be acquired because another thread or
+ * process has mounted an image from the WIM read-write or is currently
+ * modifying the WIM in-place.
* @retval ::WIMLIB_ERR_DECOMPRESSION
* Could not decompress the metadata resource for @a image in @a wim.
* @retval ::WIMLIB_ERR_FUSE
* @retval ::WIMLIB_ERR_INVALID_PARAM
* @a image is shared among multiple ::WIMStruct's as a result of a call to
* wimlib_export_image(), or @a image has been added with
- * wimlib_add_image() or wimlib_add_image_from_ntfs_volume().
+ * wimlib_add_image().
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_SIZE
* The metadata resource for @a image in @a wim is invalid.
* @retval ::WIMLIB_ERR_INVALID_SECURITY_DATA
*/
extern int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
int mount_flags, WIMStruct **additional_swms,
- unsigned num_additional_swms);
+ unsigned num_additional_swms,
+ const char *staging_dir);
/**
* Opens a WIM file and creates a ::WIMStruct for it.
* @param open_flags
* Bitwise OR of flags ::WIMLIB_OPEN_FLAG_CHECK_INTEGRITY and/or
* ::WIMLIB_OPEN_FLAG_SPLIT_OK.
- *
+ * <br/> <br/>
* If ::WIMLIB_OPEN_FLAG_CHECK_INTEGRITY is given, the integrity table of
* the WIM, if it exists, is checked, and this function will fail with an
* ::WIMLIB_ERR_INTEGRITY status if any of the computed SHA1 message
* digests of the WIM do not exactly match the corresponding message
* digests given in the integrity table.
- *
+ * <br/> <br/>
* If ::WIMLIB_OPEN_FLAG_SPLIT_OK is given, no error will be issued if the
* WIM is part of a split WIM; otherwise ::WIMLIB_ERR_SPLIT_UNSUPPORTED is
* returned. (This flag may be removed in the future, in which case no
* wim_file contains an integrity table, but the integrity table is
* invalid.
* @retval ::WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY
- * The lookup table for the WIM contained duplicate entries, or it
- * contained an entry with a SHA1 message digest of all 0's.
+ * The lookup table for the WIM contained duplicate entries that are not
+ * for metadata resources, or it contained an entry with a SHA1 message
+ * digest of all 0's.
* @retval ::WIMLIB_ERR_NOMEM
* Failed to allocated needed memory.
* @retval ::WIMLIB_ERR_NOT_A_WIM_FILE
* data from @a wim_file.
* @retval ::WIMLIB_ERR_SPLIT_UNSUPPORTED
* @a wim_file is a split WIM, but ::WIMLIB_OPEN_FLAG_SPLIT_OK was not
- * givin in @a open_flags.
+ * specified in @a open_flags.
* @retval ::WIMLIB_ERR_UNKNOWN_VERSION
* A number other than 0x10d00 is written in the version field of the WIM
- * header of @a wim_file.
+ * header of @a wim_file. (Probably a pre-Vista WIM).
* @retval ::WIMLIB_ERR_XML
* The XML data for @a wim_file is invalid.
*/
/**
* Overwrites the file that the WIM was originally read from, with changes made.
+ * This only makes sense for ::WIMStruct's obtained from wimlib_open_wim()
+ * rather than wimlib_create_new_wim().
*
* There are two ways that a WIM may be overwritten. The first is to do a full
- * rebuild: the new WIM is written to a temporary file and then renamed to the
- * original file after it is has been completely written. The temporary file
- * currently is made in the same directory as the original WIM file. A full
- * rebuild may take a while, but can be used even if images have been modified
- * or deleted, will produce a WIM with no holes, and has little chance of
- * unintentional data loss because the temporary WIM is fsync()ed before being
- * renamed to the original WIM.
- *
- * The second way to overwrite a WIM is by appending to the end of it. This can
- * be much faster than a full rebuild, but it only works if the only operations
- * on the WIM have been to change the header or XML data, or to add new images.
- * Writing a WIM in this mode begins with writing any new file resources *after*
- * everything in the old WIM, even though this will leave a hole where the old
- * lookup table, XML data, and integrity were. This is done so that the WIM
- * remains valid even if the operation is aborted mid-write.
- *
- * By default, the overwrite mode is chosen based on the past operations
- * performed on the WIM. Use the flag ::WIMLIB_WRITE_FLAG_REBUILD to explicitly
- * request a full rebuild.
+ * rebuild. In this mode, the new WIM is written to a temporary file and then
+ * renamed to the original file after it is has been completely written. The
+ * temporary file is made in the same directory as the original WIM file. A
+ * full rebuild may take a while, but can be used even if images have been
+ * modified or deleted, will produce a WIM with no holes, and has little chance
+ * of unintentional data loss because the temporary WIM is fsync()ed before
+ * being renamed to the original WIM.
+ *
+ * The second way to overwrite a WIM is by appending to the end of it and
+ * overwriting the header. This can be much faster than a full rebuild, but it
+ * only works if the only operations on the WIM have been to change the header
+ * and/or XML data, or to add new images. Writing a WIM in this mode begins
+ * with writing any new file resources *after* everything in the old WIM, even
+ * though this will leave a hole where the old lookup table, XML data, and
+ * integrity were. This is done so that the WIM remains valid even if the
+ * operation is aborted mid-write. The WIM header is only overwritten at the
+ * very last moment, and up until that point the WIM will be seen as the old
+ * version.
+ *
+ * By default, the overwrite mode is determine automatically based on the past
+ * operations performed on the ::WIMStruct. Use the flag
+ * ::WIMLIB_WRITE_FLAG_REBUILD to explicitly request a full rebuild, and use the
+ * ::WIMLIB_WRITE_FLAG_SOFT_DELETE to request the in-place overwrite even if
+ * images have been deleted from the WIM.
*
* In the temporary-file overwrite mode, no changes are made to the WIM on
- * failure, and the temporary file is deleted (if possible). Abnormal
- * termination of the program will result in the temporary file being orphaned.
- * In the direct append mode, the WIM is truncated to the original length on
- * failure, while abnormal termination of the program will result in extra data
- * appended to the original WIM, but it should still be a valid WIM.
+ * failure, and the temporary file is deleted if possible. Abnormal termination
+ * of the program will result in the temporary file being orphaned. In the
+ * direct append mode, the WIM is truncated to the original length on failure;
+ * and while abnormal termination of the program will result in extra data
+ * appended to the original WIM, it should still be a valid WIM.
*
* @param wim
* Pointer to the ::WIMStruct for the WIM file to write. There may have
*
* @return 0 on success; nonzero on error. This function may return any value
* returned by wimlib_write() as well as the following error codes:
+ * @retval ::WIMLIB_ERR_ALREADY_LOCKED
+ * The WIM was going to be modifien in-place (with no temporary file), but
+ * an exclusive advisory lock on the on-disk WIM file could not be acquired
+ * because another thread or process has mounted an image from the WIM
+ * read-write or is currently modifying the WIM in-place.
* @retval ::WIMLIB_ERR_NO_FILENAME
* @a wim corresponds to a WIM created with wimlib_create_new_wim() rather
* than a WIM read with wimlib_open_wim().
* @retval ::WIMLIB_ERR_INVALID_IMAGE
* @a image does not specify a valid image in @a wim, and is not
* ::WIMLIB_ALL_IMAGES.
- * @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a wim was @c NULL.
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_SIZE
* The metadata resource for one of the specified images is invalid.
* @retval ::WIMLIB_ERR_INVALID_SECURITY_DATA
* digests, as found in the directory entry tree in the WIM file, to file
* resources in the WIM file. This table includes one entry for each unique
* file in the WIM, so it can be quite long. There is only one lookup table per
- * WIM.
+ * WIM file, but each split WIM part has its own lookup table.
*
* @param wim
* Pointer to the ::WIMStruct for a WIM file.
/**
* Prints the metadata of the specified image in a WIM file. The metadata
- * consists of the security data as well as the directory entry tree, and each
+ * consists of the security data as well as the directory entry tree. Each
* image has its own metadata.
*
* @param wim
* @retval ::WIMLIB_ERR_INVALID_IMAGE
* @a image does not specify a valid image in @a wim, and is not
* ::WIMLIB_ALL_IMAGES.
- * @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a wim was @c NULL.
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_SIZE
* The metadata resource for one of the specified images is invalid.
* @retval ::WIMLIB_ERR_INVALID_SECURITY_DATA
* @param wim
* Pointer to the ::WIMStruct for a WIM file.
* @param image_name_or_num
- * A string specifying which image. If it begins with a number, it is
- * taken to be a string specifying the image number. Otherwise, it is
- * taken to be the name of an image, as specified in the XML data for the
- * WIM file. It also may be the keyword "all" or the string "*", both of
- * which will resolve to ::WIMLIB_ALL_IMAGES.
+ * A string specifying the name or number of an image in the WIM. If it
+ * parses to a positive integer, this integer is taken to specify the
+ * number of the image, indexed starting at 1. Otherwise, it is taken to
+ * be the name of an image, as given in the XML data for the WIM file. It
+ * also may be the keyword "all" or the string "*", both of which will
+ * resolve to ::WIMLIB_ALL_IMAGES.
+ * <br/> <br/>
+ * There is no way to search for an image actually named "all", "*", or an
+ * integer number, or an image that has no name. However, you can use
+ * wimlib_get_image_name() to get the name of any image.
*
* @return
* If the string resolved to a single existing image, the number of that
- * image, counting starting at 1, is returned. If the keyword "all" was
- * specified, ::WIMLIB_ALL_IMAGES is returned. Otherwise, ::WIMLIB_NO_IMAGE is
- * returned.
+ * image, indexed starting at 1, is returned. If the keyword "all" or "*"
+ * was specified, ::WIMLIB_ALL_IMAGES is returned. Otherwise,
+ * ::WIMLIB_NO_IMAGE is returned. If @a image_name_or_num was @c NULL or
+ * the empty string, ::WIMLIB_NO_IMAGE is returned, even if one or more
+ * images in @a wim has no name.
*/
extern int wimlib_resolve_image(WIMStruct *wim, const char *image_name_or_num);
* The number of the image to mark as bootable, or 0 to mark no image as
* bootable.
* @return 0 on success; nonzero on error.
- * @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a wim was @c NULL.
* @retval ::WIMLIB_ERR_INVALID_IMAGE
* @a boot_idx does not specify an existing image in @a wim, and it was not
* 0.
* @return 0 on success; nonzero on error.
* @retval ::WIMLIB_ERR_INVALID_IMAGE
* @a image does not specify a single existing image in @a wim.
- * @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a wim was @c NULL.
* @retval ::WIMLIB_ERR_NOMEM
* Failed to allocate the memory needed to duplicate the @a description
* string.
* @return 0 on success; nonzero on error.
* @retval ::WIMLIB_ERR_INVALID_IMAGE
* @a image does not specify a single existing image in @a wim.
- * @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a wim was @c NULL.
* @retval ::WIMLIB_ERR_NOMEM
* Failed to allocate the memory needed to duplicate the @a flags string.
*/
* @param image
* The number of the image for which to change the name.
* @param name
- * The new name to give the image. It must not a nonempty string.
+ * The new name to give the image. It must be a nonempty string.
*
* @return 0 on success; nonzero on error.
* @retval ::WIMLIB_ERR_IMAGE_NAME_COLLISION
* There is already an image named @a name in @a wim.
* @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a name was @c NULL or the empty string, or @a wim was @c NULL.
+ * @a name was @c NULL or the empty string.
* @retval ::WIMLIB_ERR_INVALID_IMAGE
* @a image does not specify a single existing image in @a wim.
* @retval ::WIMLIB_ERR_NOMEM
* The default is to use the default @c malloc() and @c free() from the C
* library.
*
- * Please note that some external functions we call still may use the standard
- * memory allocation functions.
+ * Please note that some external functions, such as those in @c libntfs-3g, may
+ * use the standard memory allocation functions.
*
* @param malloc_func
* A function equivalent to @c malloc() that wimlib will use to allocate
* the WIM may be larger than this size, and the WIM file format provides
* no way to split up file resources among multiple WIMs.
* @param write_flags
- * Bitwise OR of the flags ::WIMLIB_WRITE_FLAG_CHECK_INTEGRITY and/or
- * ::WIMLIB_WRITE_FLAG_RECOMPRESS.
+ * ::WIMLIB_WRITE_FLAG_CHECK_INTEGRITY if integrity tables are to be
+ * included in the split WIM parts.
* @param progress_func
* If non-NULL, a function that will be called periodically with the
* progress of the current operation.
* @return 0 on success; nonzero on error. This function may return any value
* returned by wimlib_write() as well as the following error codes:
*
- * @retval ::WIMLIB_ERR_SPLIT_UNSUPPORTED:
+ * @retval ::WIMLIB_ERR_SPLIT_UNSUPPORTED
* @a wim is not part 1 of a stand-alone WIM.
* @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a w was @c NULL, @a swm_name was @c NULL, or @a part_size was 0.
+ * @a swm_name was @c NULL, or @a part_size was 0.
+ *
+ * Note: the WIM's uncompressed and compressed resources are not checksummed
+ * when they are copied from the joined WIM to the split WIM parts, nor are
+ * compressed resources re-compressed.
*/
extern int wimlib_split(WIMStruct *wim, const char *swm_name,
size_t part_size, int write_flags,
/**
* Unmounts a WIM image that was mounted using wimlib_mount_image().
*
- * Blocks until it is known whether the mount succeeded or failed.
- *
- * To perform this operation, the process calling wimlib_unmount_image()
- * communicates with the process that had called wimlib_mount_image().
+ * The image to unmount is specified by the path to the mountpoint, not the
+ * original ::WIMStruct passed to wimlib_mount_image(), which should not be
+ * touched and also may have been allocated in a different process.
*
- * There is currently a design problem with this function because it is hard to
- * know whether the filesystem daemon is still working or whether it has
- * crashed, has been killed, or has reached an infinite loop. However, ideally
- * there should be no infinite loops or crashes in the code, so this wouldn't be
- * much of a problem. Currently, a timeout of 600 seconds (so long because WIMs
- * can be very large) is implemented so that this function will not wait forever
- * before returning failure.
+ * To unmount the image, the thread calling this function communicates with the
+ * thread that is managing the mounted WIM image. This function blocks until it
+ * is known whether the unmount succeeded or failed. In the case of a
+ * read-write mounted WIM, the unmount is not considered to have succeeded until
+ * all changes have been saved to the underlying WIM file.
*
* @param dir
* The directory that the WIM image was mounted on.
* @param unmount_flags
- * Bitwise OR of the flags ::WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY and/or
- * ::WIMLIB_UNMOUNT_FLAG_COMMIT. Neither of these flags affect read-only
+ * Bitwise OR of the flags ::WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY,
+ * ::WIMLIB_UNMOUNT_FLAG_COMMIT, ::WIMLIB_UNMOUNT_FLAG_REBUILD, and/or
+ * ::WIMLIB_UNMOUNT_FLAG_RECOMPRESS. None of these flags affect read-only
* mounts.
+ * @param progress_func
+ * If non-NULL, a function that will be called periodically with the
+ * progress of the current operation.
*
* @return 0 on success; nonzero on error.
+ *
* @retval ::WIMLIB_ERR_DELETE_STAGING_DIR
* The filesystem daemon was unable to remove the staging directory and the
* temporary files that it contains.
+ * @retval ::WIMLIB_ERR_FILESYSTEM_DAEMON_CRASHED
+ * The filesystem daemon appears to have terminated before sending an exit
+ * status.
* @retval ::WIMLIB_ERR_FORK
* Could not @c fork() the process.
* @retval ::WIMLIB_ERR_FUSERMOUNT
* @retval ::WIMLIB_ERR_OPEN
* The filesystem daemon could not open a temporary file for writing the
* new WIM.
- * @retval ::WIMLIB_ERR_TIMEOUT
- * 600 seconds elapsed while waiting for the filesystem daemon to notify
- * the process of its exit status, so the WIM file probably was not written
- * successfully.
* @retval ::WIMLIB_ERR_READ
* A read error occurred when the filesystem daemon tried to a file from
* the staging directory
* WIM file, or the filesystem daemon was unable to flush changes that had
* been made to files in the staging directory.
*/
-extern int wimlib_unmount_image(const char *dir, int unmount_flags);
+extern int wimlib_unmount_image(const char *dir, int unmount_flags,
+ wimlib_progress_func_t progress_func);
/**
* Writes a standalone WIM to a file.
*
+ * This brings in resources from any external locations, such as directory trees
+ * or NTFS volumes scanned with wimlib_add_image(), or other WIM files via
+ * wimlib_export_image(), and incorporates them into a new on-disk WIM file.
+ *
* @param wim
* Pointer to the ::WIMStruct for a WIM. There may have been in-memory
* changes made to it, which are then reflected in the output file.
* ::WIMLIB_WRITE_FLAG_RECOMPRESS, ::WIMLIB_WRITE_FLAG_FSYNC, and/or
* ::WIMLIB_WRITE_FLAG_SOFT_DELETE.
* @param num_threads
- * Number of threads to use for compressing data. Autodetected if set to
- * 0. Note: if no data compression needs to be done, no additional threads
- * will be created regardless of this parameter (e.g. if writing an
- * uncompressed WIM, or exporting an image from a compressed WIM to another
- * WIM of the same compression type without ::WIMLIB_WRITE_FLAG_RECOMPRESS
- * specified in @a write_flags).
+ * Number of threads to use for compressing data. If 0, the number of
+ * threads is taken to be the number of online processors. Note: if no
+ * data compression needs to be done, no additional threads will be created
+ * regardless of this parameter (e.g. if writing an uncompressed WIM, or
+ * exporting an image from a compressed WIM to another WIM of the same
+ * compression type without ::WIMLIB_WRITE_FLAG_RECOMPRESS specified in @a
+ * write_flags).
* @param progress_func
* If non-NULL, a function that will be called periodically with the
* progress of the current operation.
* @a image does not specify a single existing image in @a wim, and is not
* ::WIMLIB_ALL_IMAGES.
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_HASH
- * A file that had previously been scanned for inclusion in the WIM by the
- * wimlib_add_image() or wimlib_add_image_from_ntfs_volume() functions was
- * concurrently modified, so it failed the SHA1 message digest check.
+ * A file that had previously been scanned for inclusion in the WIM by
+ * wimlib_add_image() was concurrently modified, so it failed the SHA1
+ * message digest check.
* @retval ::WIMLIB_ERR_INVALID_PARAM
- * @a wim or @a path was @c NULL.
+ * @a path was @c NULL.
* @retval ::WIMLIB_ERR_INVALID_RESOURCE_SIZE
* The metadata resource for @a image in @a wim is invalid.
* @retval ::WIMLIB_ERR_INVALID_SECURITY_DATA