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unzip: optional support for xz

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function                                             old     new   delta
unzip_main                                          2476    2491     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2017-01-09 11:12:01 +01:00
parent 2a0867a5ed
commit 6b4f4b5284
2 changed files with 14 additions and 0 deletions
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1
archival/libarchive/Kbuild.src
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@ -61,6 +61,7 @@ lib-$(CONFIG_FEATURE_UNZIP_LZMA) += open_transformer.o decompress_unlzma.
lib-$(CONFIG_UNXZ) += open_transformer.o decompress_unxz.o
lib-$(CONFIG_XZCAT) += open_transformer.o decompress_unxz.o
lib-$(CONFIG_XZ) += open_transformer.o decompress_unxz.o
lib-$(CONFIG_FEATURE_UNZIP_XZ) += open_transformer.o decompress_unxz.o
lib-$(CONFIG_GUNZIP) += open_transformer.o decompress_gunzip.o
lib-$(CONFIG_ZCAT) += open_transformer.o decompress_gunzip.o
lib-$(CONFIG_UNCOMPRESS) += open_transformer.o decompress_uncompress.o

13
archival/unzip.c
View File

@ -46,6 +46,11 @@
//config: bool "Support compression method 14 (lzma)"
//config: default y
//config: depends on FEATURE_UNZIP_CDF && DESKTOP
//config:
//config:config FEATURE_UNZIP_XZ
//config: bool "Support compression method 95 (xz)"
//config: default y
//config: depends on FEATURE_UNZIP_CDF && DESKTOP
//applet:IF_UNZIP(APPLET(unzip, BB_DIR_USR_BIN, BB_SUID_DROP))
//kbuild:lib-$(CONFIG_UNZIP) += unzip.o
@ -371,6 +376,14 @@ static void unzip_extract(zip_header_t *zip, int dst_fd)
if (xstate.bytes_out < 0)
bb_error_msg_and_die("inflate error");
}
#endif
#if ENABLE_FEATURE_UNZIP_XZ
else if (zip->fmt.method == 95) {
/* Not tested yet */
xstate.bytes_out = unpack_xz_stream(&xstate);
if (xstate.bytes_out < 0)
bb_error_msg_and_die("inflate error");
}
#endif
else {
bb_error_msg_and_die("unsupported method %u", zip->fmt.method);