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    Contents of /trunk/busybox/patches/busybox-1.19.2-tar-seamless-xz.patch

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    Revision 1523 - (show annotations) (download)
    Thu Sep 8 21:40:13 2011 UTC (12 years, 7 months ago) by niro
    File size: 7102 byte(s) 
    support tar -J and decide between lzma or xz compression
    1 diff -Naur busybox-1.19.2/archival/libarchive/filter_accept_list_reassign.c busybox-1.19.2-magellan/archival/libarchive/filter_accept_list_reassign.c
    2 --- busybox-1.19.2/archival/libarchive/filter_accept_list_reassign.c 2011-08-22 04:57:49.000000000 +0200
    3 +++ busybox-1.19.2-magellan/archival/libarchive/filter_accept_list_reassign.c 2011-09-08 23:35:42.000000000 +0200
    4 @@ -46,6 +46,12 @@
    5 archive_handle->dpkg__action_data_subarchive = get_header_tar_lzma;
    6 return EXIT_SUCCESS;
    7 }
    8 + if (ENABLE_FEATURE_SEAMLESS_XZ
    9 + && strcmp(name_ptr, "xz") == 0
    10 + ) {
    11 + archive_handle->dpkg__action_data_subarchive = get_header_tar_xz;
    12 + return EXIT_SUCCESS;
    13 + }
    14 }
    15 return EXIT_FAILURE;
    16 }
    17 diff -Naur busybox-1.19.2/archival/libarchive/get_header_tar_xz.c busybox-1.19.2-magellan/archival/libarchive/get_header_tar_xz.c
    18 --- busybox-1.19.2/archival/libarchive/get_header_tar_xz.c 1970-01-01 01:00:00.000000000 +0100
    19 +++ busybox-1.19.2-magellan/archival/libarchive/get_header_tar_xz.c 2011-09-09 01:10:32.000000000 +0200
    20 @@ -0,0 +1,39 @@
    21 +/* vi: set sw=4 ts=4: */
    22 +/*
    23 + * Small xz deflate implementation.
    24 + * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org>
    25 + * Copyright (C) 2011 Niels Rogalla <niro@magellan-linux.de>
    26 + *
    27 + * Licensed under GPLv2, see file LICENSE in this source tree.
    28 + */
    29 +
    30 +#include "libbb.h"
    31 +#include "archive.h"
    32 +
    33 +char FAST_FUNC get_header_tar_xz(archive_handle_t *archive_handle)
    34 +{
    35 + uint16_t magic;
    36 +
    37 + /* check magic for LZMA or XZ */
    38 + xread(archive_handle->src_fd, &magic, 2);
    39 + xlseek(archive_handle->src_fd, -2, SEEK_CUR);
    40 +
    41 + /* Can't lseek over pipes */
    42 + archive_handle->seek = seek_by_read;
    43 +
    44 + if (magic == LZMA_DEFAULT_MAGIC) {
    45 + open_transformer(archive_handle->src_fd, unpack_lzma_stream, "unlzma");
    46 + archive_handle->offset = 0;
    47 + while (get_header_tar(archive_handle) == EXIT_SUCCESS)
    48 + continue;
    49 + } else {
    50 + xlseek(archive_handle->src_fd, +6, SEEK_CUR);
    51 + open_transformer(archive_handle->src_fd, unpack_xz_stream, "unxz");
    52 + archive_handle->offset = 0;
    53 + while (get_header_tar(archive_handle) == EXIT_SUCCESS)
    54 + continue;
    55 + }
    56 +
    57 + /* Can only do one file at a time */
    58 + return EXIT_FAILURE;
    59 +}
    60 diff -Naur busybox-1.19.2/archival/libarchive/Kbuild.src busybox-1.19.2-magellan/archival/libarchive/Kbuild.src
    61 --- busybox-1.19.2/archival/libarchive/Kbuild.src 2011-08-22 04:57:49.000000000 +0200
    62 +++ busybox-1.19.2-magellan/archival/libarchive/Kbuild.src 2011-09-08 23:43:39.000000000 +0200
    63 @@ -54,7 +54,7 @@
    64 lib-$(CONFIG_FEATURE_SEAMLESS_GZ) += open_transformer.o decompress_unzip.o get_header_tar_gz.o
    65 lib-$(CONFIG_FEATURE_SEAMLESS_BZ2) += open_transformer.o decompress_bunzip2.o get_header_tar_bz2.o
    66 lib-$(CONFIG_FEATURE_SEAMLESS_LZMA) += open_transformer.o decompress_unlzma.o get_header_tar_lzma.o
    67 -lib-$(CONFIG_FEATURE_SEAMLESS_XZ) += open_transformer.o decompress_unxz.o
    68 +lib-$(CONFIG_FEATURE_SEAMLESS_XZ) += open_transformer.o decompress_unxz.o get_header_tar_xz.o
    69 lib-$(CONFIG_FEATURE_COMPRESS_USAGE) += decompress_bunzip2.o
    70 lib-$(CONFIG_FEATURE_COMPRESS_BBCONFIG) += decompress_bunzip2.o
    71 lib-$(CONFIG_FEATURE_TAR_TO_COMMAND) += data_extract_to_command.o
    72 diff -Naur busybox-1.19.2/archival/tar.c busybox-1.19.2-magellan/archival/tar.c
    73 --- busybox-1.19.2/archival/tar.c 2011-08-22 04:57:49.000000000 +0200
    74 +++ busybox-1.19.2-magellan/archival/tar.c 2011-09-08 23:33:04.000000000 +0200
    75 @@ -744,6 +744,7 @@
    76 //usage: IF_FEATURE_SEAMLESS_GZ("z")
    77 //usage: IF_FEATURE_SEAMLESS_BZ2("j")
    78 //usage: IF_FEATURE_SEAMLESS_LZMA("a")
    79 +//usage: IF_FEATURE_SEAMLESS_XZ("J")
    80 //usage: IF_FEATURE_TAR_CREATE("h")
    81 //usage: IF_FEATURE_TAR_NOPRESERVE_TIME("m")
    82 //usage: "vO] "
    83 @@ -774,6 +775,9 @@
    84 //usage: IF_FEATURE_SEAMLESS_LZMA(
    85 //usage: "\n a (De)compress using lzma"
    86 //usage: )
    87 +//usage: IF_FEATURE_SEAMLESS_XZ(
    88 +//usage: "\n J (De)compress using xz"
    89 +//usage: )
    90 //usage: "\n O Extract to stdout"
    91 //usage: IF_FEATURE_TAR_CREATE(
    92 //usage: "\n h Follow symlinks"
    93 @@ -810,6 +814,7 @@
    94 IF_FEATURE_TAR_CREATE( OPTBIT_DEREFERENCE ,)
    95 IF_FEATURE_SEAMLESS_BZ2( OPTBIT_BZIP2 ,)
    96 IF_FEATURE_SEAMLESS_LZMA(OPTBIT_LZMA ,)
    97 + IF_FEATURE_SEAMLESS_XZ(OPTBIT_XZ ,)
    98 IF_FEATURE_TAR_FROM( OPTBIT_INCLUDE_FROM,)
    99 IF_FEATURE_TAR_FROM( OPTBIT_EXCLUDE_FROM,)
    100 IF_FEATURE_SEAMLESS_GZ( OPTBIT_GZIP ,)
    101 @@ -834,6 +839,7 @@
    102 OPT_DEREFERENCE = IF_FEATURE_TAR_CREATE( (1 << OPTBIT_DEREFERENCE )) + 0, // h
    103 OPT_BZIP2 = IF_FEATURE_SEAMLESS_BZ2( (1 << OPTBIT_BZIP2 )) + 0, // j
    104 OPT_LZMA = IF_FEATURE_SEAMLESS_LZMA((1 << OPTBIT_LZMA )) + 0, // a
    105 + OPT_XZ = IF_FEATURE_SEAMLESS_XZ((1 << OPTBIT_XZ )) + 0, // J
    106 OPT_INCLUDE_FROM = IF_FEATURE_TAR_FROM( (1 << OPTBIT_INCLUDE_FROM)) + 0, // T
    107 OPT_EXCLUDE_FROM = IF_FEATURE_TAR_FROM( (1 << OPTBIT_EXCLUDE_FROM)) + 0, // X
    108 OPT_GZIP = IF_FEATURE_SEAMLESS_GZ( (1 << OPTBIT_GZIP )) + 0, // z
    109 @@ -868,6 +874,9 @@
    110 # if ENABLE_FEATURE_SEAMLESS_LZMA
    111 "lzma\0" No_argument "a"
    112 # endif
    113 +# if ENABLE_FEATURE_SEAMLESS_XZ
    114 + "xz\0" No_argument "J"
    115 +# endif
    116 # if ENABLE_FEATURE_TAR_FROM
    117 "files-from\0" Required_argument "T"
    118 "exclude-from\0" Required_argument "X"
    119 @@ -966,6 +975,7 @@
    120 IF_FEATURE_TAR_CREATE( "ch" )
    121 IF_FEATURE_SEAMLESS_BZ2( "j" )
    122 IF_FEATURE_SEAMLESS_LZMA("a" )
    123 + IF_FEATURE_SEAMLESS_XZ("J" )
    124 IF_FEATURE_TAR_FROM( "T:X:")
    125 IF_FEATURE_SEAMLESS_GZ( "z" )
    126 IF_FEATURE_SEAMLESS_Z( "Z" )
    127 @@ -1026,6 +1036,9 @@
    128 if (opt & OPT_LZMA)
    129 get_header_ptr = get_header_tar_lzma;
    130
    131 + if (opt & OPT_XZ)
    132 + get_header_ptr = get_header_tar_xz;
    133 +
    134 if (opt & OPT_COMPRESS)
    135 get_header_ptr = get_header_tar_Z;
    136
    137 diff -Naur busybox-1.19.2/include/archive.h busybox-1.19.2-magellan/include/archive.h
    138 --- busybox-1.19.2/include/archive.h 2011-08-22 04:57:49.000000000 +0200
    139 +++ busybox-1.19.2-magellan/include/archive.h 2011-09-09 00:14:28.000000000 +0200
    140 @@ -9,6 +9,8 @@
    141 COMPRESS_MAGIC = 0x1f9d,
    142 GZIP_MAGIC = 0x1f8b,
    143 BZIP2_MAGIC = 256 * 'B' + 'Z',
    144 + /* lzma default options: lc=3 lp=0 pb=2, historic % 256 == 0 */
    145 + LZMA_DEFAULT_MAGIC = 0x5d00,
    146 /* .xz signature: 0xfd, '7', 'z', 'X', 'Z', 0x00 */
    147 /* More info at: http://tukaani.org/xz/xz-file-format.txt */
    148 XZ_MAGIC1 = 256 * 0xfd + '7',
    149 @@ -20,6 +22,8 @@
    150 COMPRESS_MAGIC = 0x9d1f,
    151 GZIP_MAGIC = 0x8b1f,
    152 BZIP2_MAGIC = 'B' + 'Z' * 256,
    153 + /* lzma default options: lc=3 lp=0 pb=2, historic % 256 == 0 */
    154 + LZMA_DEFAULT_MAGIC = 0x5d,
    155 XZ_MAGIC1 = 0xfd + '7' * 256,
    156 XZ_MAGIC2 = 'z' + ('X' + ('Z' + 0 * 256) * 256) * 256,
    157 XZ_MAGIC1a = 0xfd + ('7' + ('z' + 'X' * 256) * 256) * 256,
    158 @@ -184,6 +188,7 @@
    159 char get_header_tar_gz(archive_handle_t *archive_handle) FAST_FUNC;
    160 char get_header_tar_bz2(archive_handle_t *archive_handle) FAST_FUNC;
    161 char get_header_tar_lzma(archive_handle_t *archive_handle) FAST_FUNC;
    162 +char get_header_tar_xz(archive_handle_t *archive_handle) FAST_FUNC;
    163
    164 void seek_by_jump(int fd, off_t amount) FAST_FUNC;
    165 void seek_by_read(int fd, off_t amount) FAST_FUNC;