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

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    Revision 1523 - (hide annotations) (download)
    Thu Sep 8 21:40:13 2011 UTC (12 years, 9 months ago) by niro
    File size: 7102 byte(s) 
    support tar -J and decide between lzma or xz compression
    1 niro 1523 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;