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authorGravatar Denys Vlasenko <vda.linux@googlemail.com>2015-01-30 15:15:38 +0100
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2015-01-30 15:15:38 +0100
commit08f9ffc3f7503eb3dc94f16c615b20d2ae9a059c (patch)
tree7f4ad348cc275500a72a6c7ea3dab015bce2221b /archival/libarchive
parent8c05a74f7efcda6ae5bd83e134edf44af12cb5e4 (diff)
downloadbusybox-08f9ffc3f7503eb3dc94f16c615b20d2ae9a059c.tar.gz
busybox-08f9ffc3f7503eb3dc94f16c615b20d2ae9a059c.tar.bz2
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>
Diffstat (limited to 'archival/libarchive')
-rw-r--r--archival/libarchive/Kbuild.src1
-rw-r--r--archival/libarchive/filter_accept_list_reassign.c10
-rw-r--r--archival/libarchive/get_header_tar_xz.c21
3 files changed, 32 insertions, 0 deletions
diff --git a/archival/libarchive/Kbuild.src b/archival/libarchive/Kbuild.src
index 968fdf8ab..7e89e9e89 100644
--- a/archival/libarchive/Kbuild.src
+++ b/archival/libarchive/Kbuild.src
@@ -35,6 +35,7 @@ DPKG_FILES:= \
get_header_tar_gz.o \
get_header_tar_bz2.o \
get_header_tar_lzma.o \
+ get_header_tar_xz.o \
INSERT
diff --git a/archival/libarchive/filter_accept_list_reassign.c b/archival/libarchive/filter_accept_list_reassign.c
index 3d19abe44..b9acfbc05 100644
--- a/archival/libarchive/filter_accept_list_reassign.c
+++ b/archival/libarchive/filter_accept_list_reassign.c
@@ -28,6 +28,10 @@ char FAST_FUNC filter_accept_list_reassign(archive_handle_t *archive_handle)
name_ptr++;
/* Modify the subarchive handler based on the extension */
+ if (strcmp(name_ptr, "tar") == 0) {
+ archive_handle->dpkg__action_data_subarchive = get_header_tar;
+ return EXIT_SUCCESS;
+ }
if (ENABLE_FEATURE_SEAMLESS_GZ
&& strcmp(name_ptr, "gz") == 0
) {
@@ -46,6 +50,12 @@ char FAST_FUNC filter_accept_list_reassign(archive_handle_t *archive_handle)
archive_handle->dpkg__action_data_subarchive = get_header_tar_lzma;
return EXIT_SUCCESS;
}
+ if (ENABLE_FEATURE_SEAMLESS_XZ
+ && strcmp(name_ptr, "xz") == 0
+ ) {
+ archive_handle->dpkg__action_data_subarchive = get_header_tar_xz;
+ return EXIT_SUCCESS;
+ }
}
return EXIT_FAILURE;
}
diff --git a/archival/libarchive/get_header_tar_xz.c b/archival/libarchive/get_header_tar_xz.c
new file mode 100644
index 000000000..7bf3b3b56
--- /dev/null
+++ b/archival/libarchive/get_header_tar_xz.c
@@ -0,0 +1,21 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+#include "libbb.h"
+#include "bb_archive.h"
+
+char FAST_FUNC get_header_tar_xz(archive_handle_t *archive_handle)
+{
+ /* Can't lseek over pipes */
+ archive_handle->seek = seek_by_read;
+
+ fork_transformer_with_sig(archive_handle->src_fd, unpack_xz_stream, "unxz");
+ archive_handle->offset = 0;
+ while (get_header_tar(archive_handle) == EXIT_SUCCESS)
+ continue;
+
+ /* Can only do one file at a time */
+ return EXIT_FAILURE;
+}