/*- * Copyright (c) 2003-2007 Tim Kientzle * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/lib/libarchive/archive.h.in,v 1.50 2008/05/26 17:00:22 kientzle Exp $ */ #ifndef ARCHIVE_H_INCLUDED #define ARCHIVE_H_INCLUDED /* * Note: archive.h is for use outside of libarchive; the configuration * headers (config.h, archive_platform.h, etc.) are purely internal. * Do NOT use HAVE_XXX configuration macros to control the behavior of * this header! If you must conditionalize, use predefined compiler and/or * platform macros. */ #if defined(__BORLANDC__) && __BORLANDC__ >= 0x560 # define __LA_STDINT_H <stdint.h> #elif !defined(__WATCOMC__) && !defined(_MSC_VER) && !defined(__INTERIX) && !defined(__BORLANDC__) # define __LA_STDINT_H <inttypes.h> #endif #include <sys/stat.h> #include <sys/types.h> /* Linux requires this for off_t */ #ifdef __LA_STDINT_H # include __LA_STDINT_H /* int64_t, etc. */ #endif #include <stdio.h> /* For FILE * */ /* Get appropriate definitions of standard POSIX-style types. */ /* These should match the types used in 'struct stat' */ #if defined(_WIN32) && !defined(__CYGWIN__) #define __LA_INT64_T __int64 # if defined(_SSIZE_T_DEFINED) # define __LA_SSIZE_T ssize_t # elif defined(_WIN64) # define __LA_SSIZE_T __int64 # else # define __LA_SSIZE_T long # endif # if defined(__BORLANDC__) # define __LA_UID_T uid_t # define __LA_GID_T gid_t # else # define __LA_UID_T short # define __LA_GID_T short # endif #else #include <unistd.h> /* ssize_t, uid_t, and gid_t */ #define __LA_INT64_T int64_t #define __LA_SSIZE_T ssize_t #define __LA_UID_T uid_t #define __LA_GID_T gid_t #endif /* * On Windows, define LIBARCHIVE_STATIC if you're building or using a * .lib. The default here assumes you're building a DLL. Only * libarchive source should ever define __LIBARCHIVE_BUILD. */ #if ((defined __WIN32__) || (defined _WIN32) || defined(__CYGWIN__)) && (!defined LIBARCHIVE_STATIC) # ifdef __LIBARCHIVE_BUILD # ifdef __GNUC__ # define __LA_DECL __attribute__((dllexport)) extern # else # define __LA_DECL __declspec(dllexport) # endif # else # ifdef __GNUC__ # define __LA_DECL __attribute__((dllimport)) extern # else # define __LA_DECL __declspec(dllimport) # endif # endif #else /* Static libraries or non-Windows needs no special declaration. */ # define __LA_DECL #endif #ifdef __cplusplus extern "C" { #endif /* * The version number is provided as both a macro and a function. * The macro identifies the installed header; the function identifies * the library version (which may not be the same if you're using a * dynamically-linked version of the library). Of course, if the * header and library are very different, you should expect some * strangeness. Don't do that. */ /* * The version number is expressed as a single integer that makes it * easy to compare versions at build time: for version a.b.c, the * version number is printf("%d%03d%03d",a,b,c). For example, if you * know your application requires version 2.12.108 or later, you can * assert that ARCHIVE_VERSION >= 2012108. * * This single-number format was introduced with libarchive 1.9.0 in * the libarchive 1.x family and libarchive 2.2.4 in the libarchive * 2.x family. The following may be useful if you really want to do * feature detection for earlier libarchive versions (which defined * ARCHIVE_API_VERSION and ARCHIVE_API_FEATURE instead): * * #ifndef ARCHIVE_VERSION_NUMBER * #define ARCHIVE_VERSION_NUMBER \ * (ARCHIVE_API_VERSION * 1000000 + ARCHIVE_API_FEATURE * 1000) * #endif */ #define ARCHIVE_VERSION_NUMBER 2008003 __LA_DECL int archive_version_number(void); /* * Textual name/version of the library, useful for version displays. */ #define ARCHIVE_VERSION_STRING "libarchive 2.8.3" __LA_DECL const char * archive_version_string(void); #if ARCHIVE_VERSION_NUMBER < 3000000 /* * Deprecated; these are older names that will be removed in favor of * the simpler definitions above. */ #define ARCHIVE_VERSION_STAMP ARCHIVE_VERSION_NUMBER __LA_DECL int archive_version_stamp(void); #define ARCHIVE_LIBRARY_VERSION ARCHIVE_VERSION_STRING __LA_DECL const char * archive_version(void); #define ARCHIVE_API_VERSION (ARCHIVE_VERSION_NUMBER / 1000000) __LA_DECL int archive_api_version(void); #define ARCHIVE_API_FEATURE ((ARCHIVE_VERSION_NUMBER / 1000) % 1000) __LA_DECL int archive_api_feature(void); #endif #if ARCHIVE_VERSION_NUMBER < 3000000 /* This should never have been here in the first place. */ /* Legacy of old tar assumptions, will be removed in libarchive 3.0. */ #define ARCHIVE_BYTES_PER_RECORD 512 #define ARCHIVE_DEFAULT_BYTES_PER_BLOCK 10240 #endif /* Declare our basic types. */ struct archive; struct archive_entry; /* * Error codes: Use archive_errno() and archive_error_string() * to retrieve details. Unless specified otherwise, all functions * that return 'int' use these codes. */ #define ARCHIVE_EOF 1 /* Found end of archive. */ #define ARCHIVE_OK 0 /* Operation was successful. */ #define ARCHIVE_RETRY (-10) /* Retry might succeed. */ #define ARCHIVE_WARN (-20) /* Partial success. */ /* For example, if write_header "fails", then you can't push data. */ #define ARCHIVE_FAILED (-25) /* Current operation cannot complete. */ /* But if write_header is "fatal," then this archive is dead and useless. */ #define ARCHIVE_FATAL (-30) /* No more operations are possible. */ /* * As far as possible, archive_errno returns standard platform errno codes. * Of course, the details vary by platform, so the actual definitions * here are stored in "archive_platform.h". The symbols are listed here * for reference; as a rule, clients should not need to know the exact * platform-dependent error code. */ /* Unrecognized or invalid file format. */ /* #define ARCHIVE_ERRNO_FILE_FORMAT */ /* Illegal usage of the library. */ /* #define ARCHIVE_ERRNO_PROGRAMMER_ERROR */ /* Unknown or unclassified error. */ /* #define ARCHIVE_ERRNO_MISC */ /* * Callbacks are invoked to automatically read/skip/write/open/close the * archive. You can provide your own for complex tasks (like breaking * archives across multiple tapes) or use standard ones built into the * library. */ /* Returns pointer and size of next block of data from archive. */ typedef __LA_SSIZE_T archive_read_callback(struct archive *, void *_client_data, const void **_buffer); /* Skips at most request bytes from archive and returns the skipped amount */ #if ARCHIVE_VERSION_NUMBER < 2000000 /* Libarchive 1.0 used ssize_t for the return, which is only 32 bits * on most 32-bit platforms; not large enough. */ typedef __LA_SSIZE_T archive_skip_callback(struct archive *, void *_client_data, size_t request); #elif ARCHIVE_VERSION_NUMBER < 3000000 /* Libarchive 2.0 used off_t here, but that is a bad idea on Linux and a * few other platforms where off_t varies with build settings. */ typedef off_t archive_skip_callback(struct archive *, void *_client_data, off_t request); #else /* Libarchive 3.0 uses int64_t here, which is actually guaranteed to be * 64 bits on every platform. */ typedef __LA_INT64_T archive_skip_callback(struct archive *, void *_client_data, __LA_INT64_T request); #endif /* Returns size actually written, zero on EOF, -1 on error. */ typedef __LA_SSIZE_T archive_write_callback(struct archive *, void *_client_data, const void *_buffer, size_t _length); #if ARCHIVE_VERSION_NUMBER < 3000000 /* Open callback is actually never needed; remove it in libarchive 3.0. */ typedef int archive_open_callback(struct archive *, void *_client_data); #endif typedef int archive_close_callback(struct archive *, void *_client_data); /* * Codes for archive_compression. */ #define ARCHIVE_COMPRESSION_NONE 0 #define ARCHIVE_COMPRESSION_GZIP 1 #define ARCHIVE_COMPRESSION_BZIP2 2 #define ARCHIVE_COMPRESSION_COMPRESS 3 #define ARCHIVE_COMPRESSION_PROGRAM 4 #define ARCHIVE_COMPRESSION_LZMA 5 #define ARCHIVE_COMPRESSION_XZ 6 #define ARCHIVE_COMPRESSION_UU 7 #define ARCHIVE_COMPRESSION_RPM 8 /* * Codes returned by archive_format. * * Top 16 bits identifies the format family (e.g., "tar"); lower * 16 bits indicate the variant. This is updated by read_next_header. * Note that the lower 16 bits will often vary from entry to entry. * In some cases, this variation occurs as libarchive learns more about * the archive (for example, later entries might utilize extensions that * weren't necessary earlier in the archive; in this case, libarchive * will change the format code to indicate the extended format that * was used). In other cases, it's because different tools have * modified the archive and so different parts of the archive * actually have slightly different formts. (Both tar and cpio store * format codes in each entry, so it is quite possible for each * entry to be in a different format.) */ #define ARCHIVE_FORMAT_BASE_MASK 0xff0000 #define ARCHIVE_FORMAT_CPIO 0x10000 #define ARCHIVE_FORMAT_CPIO_POSIX (ARCHIVE_FORMAT_CPIO | 1) #define ARCHIVE_FORMAT_CPIO_BIN_LE (ARCHIVE_FORMAT_CPIO | 2) #define ARCHIVE_FORMAT_CPIO_BIN_BE (ARCHIVE_FORMAT_CPIO | 3) #define ARCHIVE_FORMAT_CPIO_SVR4_NOCRC (ARCHIVE_FORMAT_CPIO | 4) #define ARCHIVE_FORMAT_CPIO_SVR4_CRC (ARCHIVE_FORMAT_CPIO | 5) #define ARCHIVE_FORMAT_SHAR 0x20000 #define ARCHIVE_FORMAT_SHAR_BASE (ARCHIVE_FORMAT_SHAR | 1) #define ARCHIVE_FORMAT_SHAR_DUMP (ARCHIVE_FORMAT_SHAR | 2) #define ARCHIVE_FORMAT_TAR 0x30000 #define ARCHIVE_FORMAT_TAR_USTAR (ARCHIVE_FORMAT_TAR | 1) #define ARCHIVE_FORMAT_TAR_PAX_INTERCHANGE (ARCHIVE_FORMAT_TAR | 2) #define ARCHIVE_FORMAT_TAR_PAX_RESTRICTED (ARCHIVE_FORMAT_TAR | 3) #define ARCHIVE_FORMAT_TAR_GNUTAR (ARCHIVE_FORMAT_TAR | 4) #define ARCHIVE_FORMAT_ISO9660 0x40000 #define ARCHIVE_FORMAT_ISO9660_ROCKRIDGE (ARCHIVE_FORMAT_ISO9660 | 1) #define ARCHIVE_FORMAT_ZIP 0x50000 #define ARCHIVE_FORMAT_EMPTY 0x60000 #define ARCHIVE_FORMAT_AR 0x70000 #define ARCHIVE_FORMAT_AR_GNU (ARCHIVE_FORMAT_AR | 1) #define ARCHIVE_FORMAT_AR_BSD (ARCHIVE_FORMAT_AR | 2) #define ARCHIVE_FORMAT_MTREE 0x80000 #define ARCHIVE_FORMAT_RAW 0x90000 #define ARCHIVE_FORMAT_XAR 0xA0000 /*- * Basic outline for reading an archive: * 1) Ask archive_read_new for an archive reader object. * 2) Update any global properties as appropriate. * In particular, you'll certainly want to call appropriate * archive_read_support_XXX functions. * 3) Call archive_read_open_XXX to open the archive * 4) Repeatedly call archive_read_next_header to get information about * successive archive entries. Call archive_read_data to extract * data for entries of interest. * 5) Call archive_read_finish to end processing. */ __LA_DECL struct archive *archive_read_new(void); /* * The archive_read_support_XXX calls enable auto-detect for this * archive handle. They also link in the necessary support code. * For example, if you don't want bzlib linked in, don't invoke * support_compression_bzip2(). The "all" functions provide the * obvious shorthand. */ __LA_DECL int archive_read_support_compression_all(struct archive *); __LA_DECL int archive_read_support_compression_bzip2(struct archive *); __LA_DECL int archive_read_support_compression_compress(struct archive *); __LA_DECL int archive_read_support_compression_gzip(struct archive *); __LA_DECL int archive_read_support_compression_lzma(struct archive *); __LA_DECL int archive_read_support_compression_none(struct archive *); __LA_DECL int archive_read_support_compression_program(struct archive *, const char *command); __LA_DECL int archive_read_support_compression_program_signature (struct archive *, const char *, const void * /* match */, size_t); __LA_DECL int archive_read_support_compression_rpm(struct archive *); __LA_DECL int archive_read_support_compression_uu(struct archive *); __LA_DECL int archive_read_support_compression_xz(struct archive *); __LA_DECL int archive_read_support_format_all(struct archive *); __LA_DECL int archive_read_support_format_ar(struct archive *); __LA_DECL int archive_read_support_format_cpio(struct archive *); __LA_DECL int archive_read_support_format_empty(struct archive *); __LA_DECL int archive_read_support_format_gnutar(struct archive *); __LA_DECL int archive_read_support_format_iso9660(struct archive *); __LA_DECL int archive_read_support_format_mtree(struct archive *); __LA_DECL int archive_read_support_format_raw(struct archive *); __LA_DECL int archive_read_support_format_tar(struct archive *); __LA_DECL int archive_read_support_format_xar(struct archive *); __LA_DECL int archive_read_support_format_zip(struct archive *); /* Open the archive using callbacks for archive I/O. */ __LA_DECL int archive_read_open(struct archive *, void *_client_data, archive_open_callback *, archive_read_callback *, archive_close_callback *); __LA_DECL int archive_read_open2(struct archive *, void *_client_data, archive_open_callback *, archive_read_callback *, archive_skip_callback *, archive_close_callback *); /* * A variety of shortcuts that invoke archive_read_open() with * canned callbacks suitable for common situations. The ones that * accept a block size handle tape blocking correctly. */ /* Use this if you know the filename. Note: NULL indicates stdin. */ __LA_DECL int archive_read_open_filename(struct archive *, const char *_filename, size_t _block_size); /* archive_read_open_file() is a deprecated synonym for ..._open_filename(). */ __LA_DECL int archive_read_open_file(struct archive *, const char *_filename, size_t _block_size); /* Read an archive that's stored in memory. */ __LA_DECL int archive_read_open_memory(struct archive *, void * buff, size_t size); /* A more involved version that is only used for internal testing. */ __LA_DECL int archive_read_open_memory2(struct archive *a, void *buff, size_t size, size_t read_size); /* Read an archive that's already open, using the file descriptor. */ __LA_DECL int archive_read_open_fd(struct archive *, int _fd, size_t _block_size); /* Read an archive that's already open, using a FILE *. */ /* Note: DO NOT use this with tape drives. */ __LA_DECL int archive_read_open_FILE(struct archive *, FILE *_file); /* Parses and returns next entry header. */ __LA_DECL int archive_read_next_header(struct archive *, struct archive_entry **); /* Parses and returns next entry header using the archive_entry passed in */ __LA_DECL int archive_read_next_header2(struct archive *, struct archive_entry *); /* * Retrieve the byte offset in UNCOMPRESSED data where last-read * header started. */ __LA_DECL __LA_INT64_T archive_read_header_position(struct archive *); /* Read data from the body of an entry. Similar to read(2). */ __LA_DECL __LA_SSIZE_T archive_read_data(struct archive *, void *, size_t); /* * A zero-copy version of archive_read_data that also exposes the file offset * of each returned block. Note that the client has no way to specify * the desired size of the block. The API does guarantee that offsets will * be strictly increasing and that returned blocks will not overlap. */ #if ARCHIVE_VERSION_NUMBER < 3000000 __LA_DECL int archive_read_data_block(struct archive *a, const void **buff, size_t *size, off_t *offset); #else __LA_DECL int archive_read_data_block(struct archive *a, const void **buff, size_t *size, __LA_INT64_T *offset); #endif /*- * Some convenience functions that are built on archive_read_data: * 'skip': skips entire entry * 'into_buffer': writes data into memory buffer that you provide * 'into_fd': writes data to specified filedes */ __LA_DECL int archive_read_data_skip(struct archive *); __LA_DECL int archive_read_data_into_buffer(struct archive *, void *buffer, __LA_SSIZE_T len); __LA_DECL int archive_read_data_into_fd(struct archive *, int fd); /* * Set read options. */ /* Apply option string to the format only. */ __LA_DECL int archive_read_set_format_options(struct archive *_a, const char *s); /* Apply option string to the filter only. */ __LA_DECL int archive_read_set_filter_options(struct archive *_a, const char *s); /* Apply option string to both the format and the filter. */ __LA_DECL int archive_read_set_options(struct archive *_a, const char *s); /*- * Convenience function to recreate the current entry (whose header * has just been read) on disk. * * This does quite a bit more than just copy data to disk. It also: * - Creates intermediate directories as required. * - Manages directory permissions: non-writable directories will * be initially created with write permission enabled; when the * archive is closed, dir permissions are edited to the values specified * in the archive. * - Checks hardlinks: hardlinks will not be extracted unless the * linked-to file was also extracted within the same session. (TODO) */ /* The "flags" argument selects optional behavior, 'OR' the flags you want. */ /* Default: Do not try to set owner/group. */ #define ARCHIVE_EXTRACT_OWNER (0x0001) /* Default: Do obey umask, do not restore SUID/SGID/SVTX bits. */ #define ARCHIVE_EXTRACT_PERM (0x0002) /* Default: Do not restore mtime/atime. */ #define ARCHIVE_EXTRACT_TIME (0x0004) /* Default: Replace existing files. */ #define ARCHIVE_EXTRACT_NO_OVERWRITE (0x0008) /* Default: Try create first, unlink only if create fails with EEXIST. */ #define ARCHIVE_EXTRACT_UNLINK (0x0010) /* Default: Do not restore ACLs. */ #define ARCHIVE_EXTRACT_ACL (0x0020) /* Default: Do not restore fflags. */ #define ARCHIVE_EXTRACT_FFLAGS (0x0040) /* Default: Do not restore xattrs. */ #define ARCHIVE_EXTRACT_XATTR (0x0080) /* Default: Do not try to guard against extracts redirected by symlinks. */ /* Note: With ARCHIVE_EXTRACT_UNLINK, will remove any intermediate symlink. */ #define ARCHIVE_EXTRACT_SECURE_SYMLINKS (0x0100) /* Default: Do not reject entries with '..' as path elements. */ #define ARCHIVE_EXTRACT_SECURE_NODOTDOT (0x0200) /* Default: Create parent directories as needed. */ #define ARCHIVE_EXTRACT_NO_AUTODIR (0x0400) /* Default: Overwrite files, even if one on disk is newer. */ #define ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER (0x0800) /* Detect blocks of 0 and write holes instead. */ #define ARCHIVE_EXTRACT_SPARSE (0x1000) __LA_DECL int archive_read_extract(struct archive *, struct archive_entry *, int flags); __LA_DECL int archive_read_extract2(struct archive *, struct archive_entry *, struct archive * /* dest */); __LA_DECL void archive_read_extract_set_progress_callback(struct archive *, void (*_progress_func)(void *), void *_user_data); /* Record the dev/ino of a file that will not be written. This is * generally set to the dev/ino of the archive being read. */ __LA_DECL void archive_read_extract_set_skip_file(struct archive *, dev_t, ino_t); /* Close the file and release most resources. */ __LA_DECL int archive_read_close(struct archive *); /* Release all resources and destroy the object. */ /* Note that archive_read_finish will call archive_read_close for you. */ #if ARCHIVE_VERSION_NUMBER < 2000000 /* Erroneously declared to return void in libarchive 1.x */ __LA_DECL void archive_read_finish(struct archive *); #else __LA_DECL int archive_read_finish(struct archive *); #endif /*- * To create an archive: * 1) Ask archive_write_new for a archive writer object. * 2) Set any global properties. In particular, you should set * the compression and format to use. * 3) Call archive_write_open to open the file (most people * will use archive_write_open_file or archive_write_open_fd, * which provide convenient canned I/O callbacks for you). * 4) For each entry: * - construct an appropriate struct archive_entry structure * - archive_write_header to write the header * - archive_write_data to write the entry data * 5) archive_write_close to close the output * 6) archive_write_finish to cleanup the writer and release resources */ __LA_DECL struct archive *archive_write_new(void); __LA_DECL int archive_write_set_bytes_per_block(struct archive *, int bytes_per_block); __LA_DECL int archive_write_get_bytes_per_block(struct archive *); /* XXX This is badly misnamed; suggestions appreciated. XXX */ __LA_DECL int archive_write_set_bytes_in_last_block(struct archive *, int bytes_in_last_block); __LA_DECL int archive_write_get_bytes_in_last_block(struct archive *); /* The dev/ino of a file that won't be archived. This is used * to avoid recursively adding an archive to itself. */ __LA_DECL int archive_write_set_skip_file(struct archive *, dev_t, ino_t); __LA_DECL int archive_write_set_compression_bzip2(struct archive *); __LA_DECL int archive_write_set_compression_compress(struct archive *); __LA_DECL int archive_write_set_compression_gzip(struct archive *); __LA_DECL int archive_write_set_compression_lzma(struct archive *); __LA_DECL int archive_write_set_compression_none(struct archive *); __LA_DECL int archive_write_set_compression_program(struct archive *, const char *cmd); __LA_DECL int archive_write_set_compression_xz(struct archive *); /* A convenience function to set the format based on the code or name. */ __LA_DECL int archive_write_set_format(struct archive *, int format_code); __LA_DECL int archive_write_set_format_by_name(struct archive *, const char *name); /* To minimize link pollution, use one or more of the following. */ __LA_DECL int archive_write_set_format_ar_bsd(struct archive *); __LA_DECL int archive_write_set_format_ar_svr4(struct archive *); __LA_DECL int archive_write_set_format_cpio(struct archive *); __LA_DECL int archive_write_set_format_cpio_newc(struct archive *); __LA_DECL int archive_write_set_format_mtree(struct archive *); /* TODO: int archive_write_set_format_old_tar(struct archive *); */ __LA_DECL int archive_write_set_format_pax(struct archive *); __LA_DECL int archive_write_set_format_pax_restricted(struct archive *); __LA_DECL int archive_write_set_format_shar(struct archive *); __LA_DECL int archive_write_set_format_shar_dump(struct archive *); __LA_DECL int archive_write_set_format_ustar(struct archive *); __LA_DECL int archive_write_set_format_zip(struct archive *); __LA_DECL int archive_write_open(struct archive *, void *, archive_open_callback *, archive_write_callback *, archive_close_callback *); __LA_DECL int archive_write_open_fd(struct archive *, int _fd); __LA_DECL int archive_write_open_filename(struct archive *, const char *_file); /* A deprecated synonym for archive_write_open_filename() */ __LA_DECL int archive_write_open_file(struct archive *, const char *_file); __LA_DECL int archive_write_open_FILE(struct archive *, FILE *); /* _buffSize is the size of the buffer, _used refers to a variable that * will be updated after each write into the buffer. */ __LA_DECL int archive_write_open_memory(struct archive *, void *_buffer, size_t _buffSize, size_t *_used); /* * Note that the library will truncate writes beyond the size provided * to archive_write_header or pad if the provided data is short. */ __LA_DECL int archive_write_header(struct archive *, struct archive_entry *); #if ARCHIVE_VERSION_NUMBER < 2000000 /* This was erroneously declared to return "int" in libarchive 1.x. */ __LA_DECL int archive_write_data(struct archive *, const void *, size_t); #else /* Libarchive 2.0 and later return ssize_t here. */ __LA_DECL __LA_SSIZE_T archive_write_data(struct archive *, const void *, size_t); #endif #if ARCHIVE_VERSION_NUMBER < 3000000 /* Libarchive 1.x and 2.x use off_t for the argument, but that's not * stable on Linux. */ __LA_DECL __LA_SSIZE_T archive_write_data_block(struct archive *, const void *, size_t, off_t); #else /* Libarchive 3.0 uses explicit int64_t to ensure consistent 64-bit support. */ __LA_DECL __LA_SSIZE_T archive_write_data_block(struct archive *, const void *, size_t, __LA_INT64_T); #endif __LA_DECL int archive_write_finish_entry(struct archive *); __LA_DECL int archive_write_close(struct archive *); #if ARCHIVE_VERSION_NUMBER < 2000000 /* Return value was incorrect in libarchive 1.x. */ __LA_DECL void archive_write_finish(struct archive *); #else /* Libarchive 2.x and later returns an error if this fails. */ /* It can fail if the archive wasn't already closed, in which case * archive_write_finish() will implicitly call archive_write_close(). */ __LA_DECL int archive_write_finish(struct archive *); #endif /* * Set write options. */ /* Apply option string to the format only. */ __LA_DECL int archive_write_set_format_options(struct archive *_a, const char *s); /* Apply option string to the compressor only. */ __LA_DECL int archive_write_set_compressor_options(struct archive *_a, const char *s); /* Apply option string to both the format and the compressor. */ __LA_DECL int archive_write_set_options(struct archive *_a, const char *s); /*- * ARCHIVE_WRITE_DISK API * * To create objects on disk: * 1) Ask archive_write_disk_new for a new archive_write_disk object. * 2) Set any global properties. In particular, you probably * want to set the options. * 3) For each entry: * - construct an appropriate struct archive_entry structure * - archive_write_header to create the file/dir/etc on disk * - archive_write_data to write the entry data * 4) archive_write_finish to cleanup the writer and release resources * * In particular, you can use this in conjunction with archive_read() * to pull entries out of an archive and create them on disk. */ __LA_DECL struct archive *archive_write_disk_new(void); /* This file will not be overwritten. */ __LA_DECL int archive_write_disk_set_skip_file(struct archive *, dev_t, ino_t); /* Set flags to control how the next item gets created. * This accepts a bitmask of ARCHIVE_EXTRACT_XXX flags defined above. */ __LA_DECL int archive_write_disk_set_options(struct archive *, int flags); /* * The lookup functions are given uname/uid (or gname/gid) pairs and * return a uid (gid) suitable for this system. These are used for * restoring ownership and for setting ACLs. The default functions * are naive, they just return the uid/gid. These are small, so reasonable * for applications that don't need to preserve ownership; they * are probably also appropriate for applications that are doing * same-system backup and restore. */ /* * The "standard" lookup functions use common system calls to lookup * the uname/gname, falling back to the uid/gid if the names can't be * found. They cache lookups and are reasonably fast, but can be very * large, so they are not used unless you ask for them. In * particular, these match the specifications of POSIX "pax" and old * POSIX "tar". */ __LA_DECL int archive_write_disk_set_standard_lookup(struct archive *); /* * If neither the default (naive) nor the standard (big) functions suit * your needs, you can write your own and register them. Be sure to * include a cleanup function if you have allocated private data. */ __LA_DECL int archive_write_disk_set_group_lookup(struct archive *, void * /* private_data */, __LA_GID_T (*)(void *, const char *, __LA_GID_T), void (* /* cleanup */)(void *)); __LA_DECL int archive_write_disk_set_user_lookup(struct archive *, void * /* private_data */, __LA_UID_T (*)(void *, const char *, __LA_UID_T), void (* /* cleanup */)(void *)); /* * ARCHIVE_READ_DISK API * * This is still evolving and somewhat experimental. */ __LA_DECL struct archive *archive_read_disk_new(void); /* The names for symlink modes here correspond to an old BSD * command-line argument convention: -L, -P, -H */ /* Follow all symlinks. */ __LA_DECL int archive_read_disk_set_symlink_logical(struct archive *); /* Follow no symlinks. */ __LA_DECL int archive_read_disk_set_symlink_physical(struct archive *); /* Follow symlink initially, then not. */ __LA_DECL int archive_read_disk_set_symlink_hybrid(struct archive *); /* TODO: Handle Linux stat32/stat64 ugliness. <sigh> */ __LA_DECL int archive_read_disk_entry_from_file(struct archive *, struct archive_entry *, int /* fd */, const struct stat *); /* Look up gname for gid or uname for uid. */ /* Default implementations are very, very stupid. */ __LA_DECL const char *archive_read_disk_gname(struct archive *, __LA_GID_T); __LA_DECL const char *archive_read_disk_uname(struct archive *, __LA_UID_T); /* "Standard" implementation uses getpwuid_r, getgrgid_r and caches the * results for performance. */ __LA_DECL int archive_read_disk_set_standard_lookup(struct archive *); /* You can install your own lookups if you like. */ __LA_DECL int archive_read_disk_set_gname_lookup(struct archive *, void * /* private_data */, const char *(* /* lookup_fn */)(void *, __LA_GID_T), void (* /* cleanup_fn */)(void *)); __LA_DECL int archive_read_disk_set_uname_lookup(struct archive *, void * /* private_data */, const char *(* /* lookup_fn */)(void *, __LA_UID_T), void (* /* cleanup_fn */)(void *)); /* * Accessor functions to read/set various information in * the struct archive object: */ /* Bytes written after compression or read before decompression. */ __LA_DECL __LA_INT64_T archive_position_compressed(struct archive *); /* Bytes written to compressor or read from decompressor. */ __LA_DECL __LA_INT64_T archive_position_uncompressed(struct archive *); __LA_DECL const char *archive_compression_name(struct archive *); __LA_DECL int archive_compression(struct archive *); __LA_DECL int archive_errno(struct archive *); __LA_DECL const char *archive_error_string(struct archive *); __LA_DECL const char *archive_format_name(struct archive *); __LA_DECL int archive_format(struct archive *); __LA_DECL void archive_clear_error(struct archive *); __LA_DECL void archive_set_error(struct archive *, int _err, const char *fmt, ...); __LA_DECL void archive_copy_error(struct archive *dest, struct archive *src); __LA_DECL int archive_file_count(struct archive *); #ifdef __cplusplus } #endif /* These are meaningless outside of this header. */ #undef __LA_DECL #undef __LA_GID_T #undef __LA_UID_T /* These need to remain defined because they're used in the * callback type definitions. XXX Fix this. This is ugly. XXX */ /* #undef __LA_INT64_T */ /* #undef __LA_SSIZE_T */ #endif /* !ARCHIVE_H_INCLUDED */