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# Description
#
# This patch adds `-a' and a long option equivalent `--lzma'
# to GNU tar 1.15.1.
#
# Changes
#
# 2007-08-10 - Use `-a' instead of of `-Y'. BusyBox already uses `-a'
# and that conflicts less with other tar implementations
# than `-Y'.
#
# 2006-08-16 - Updated magic byte detection for the new .lzma format.
#
# 2005-12-23 - Updated to use the new lzma command line tool which
# replaced the ugly lzmash wrapper script.
#
# 2005-05-06 - Initial version using lzmash wrapper script
#
# Copyright information
#
# GNU tar is copyright by Free Software Foundation, Inc.
# This patch was written by Lasse Collin <lasse.collin@tukaani.org>.
#
# GNU tar is distributed under the GNU GPL. However, the author of
# this patch puts the changes made by him into the public domain.
diff -ru tar-1.15.1_orig/src/buffer.c tar-1.15.1/src/buffer.c
--- tar-1.15.1_orig/src/buffer.c 2004-12-21 17:09:24.000000000 +0200
+++ tar-1.15.1/src/buffer.c 2005-05-06 00:04:23.000000000 +0300
@@ -153,7 +153,8 @@
ct_none,
ct_compress,
ct_gzip,
- ct_bzip2
+ ct_bzip2,
+ ct_lzma
};
struct zip_magic
@@ -170,6 +171,7 @@
{ ct_compress, "\037\235", 2, "compress", "-Z" },
{ ct_gzip, "\037\213", 2, "gzip", "-z" },
{ ct_bzip2, "BZh", 3, "bzip2", "-j" },
+ { ct_lzma, "\xFFLZMA", 6, "lzma", "-a" },
};
#define NMAGIC (sizeof(magic)/sizeof(magic[0]))
diff -ru tar-1.15.1_orig/src/tar.c tar-1.15.1/src/tar.c
--- tar-1.15.1_orig/src/tar.c 2004-12-21 16:11:26.000000000 +0200
+++ tar-1.15.1/src/tar.c 2005-05-06 00:04:24.000000000 +0300
@@ -429,6 +429,8 @@
N_("control pax keywords"), 68 },
{"label", 'V', N_("TEXT"), 0,
N_("create archive with volume name NAME. At list/extract time, use TEXT as a globbing pattern"), 68 },
+ {"lzma", 'a', 0, 0,
+ N_("filter the archive through lzma"), 68 },
{"bzip2", 'j', 0, 0,
N_("filter the archive through bzip2"), 68 },
{"gzip", 'z', 0, 0,
@@ -906,6 +908,10 @@
" perhaps you meant -j?")));
break;
+ case 'a':
+ set_use_compress_program_option ("lzma");
+ break;
+
case 'z':
set_use_compress_program_option ("gzip");
break;
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