dpkg: update supported compression methods

Based on a patch by Ron Yorston <rmy@tigress.co.uk>

function                                             old     new   delta
get_header_tar_xz                                      -      60     +60
filter_accept_list_reassign                          128     188     +60
unpack_package                                       585     621     +36
init_archive_deb_control                              52      76     +24
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/0 up/down: 180/0)             Total: 180 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c
index 13f9db991..0285273fe 100644
--- a/archival/dpkg_deb.c
+++ b/archival/dpkg_deb.c
@@ -70,6 +70,8 @@ int dpkg_deb_main(int argc, char **argv)
         ar_archive->dpkg__sub_archive = tar_archive;
         ar_archive->filter = filter_accept_list_reassign;
 
+        llist_add_to(&ar_archive->accept, (char*)"data.tar");
+        llist_add_to(&control_tar_llist, (char*)"control.tar");
 #if ENABLE_FEATURE_SEAMLESS_GZ
         llist_add_to(&ar_archive->accept, (char*)"data.tar.gz");
         llist_add_to(&control_tar_llist, (char*)"control.tar.gz");
@@ -82,6 +84,10 @@ int dpkg_deb_main(int argc, char **argv)
         llist_add_to(&ar_archive->accept, (char*)"data.tar.lzma");
         llist_add_to(&control_tar_llist, (char*)"control.tar.lzma");
 #endif
+#if ENABLE_FEATURE_SEAMLESS_XZ
+        llist_add_to(&ar_archive->accept, (char*)"data.tar.xz");
+        llist_add_to(&control_tar_llist, (char*)"control.tar.xz");
+#endif
 
         opt_complementary = "c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
         opt = getopt32(argv, "cefXx");