summaryrefslogtreecommitdiff
path: root/archival/bbunzip.c
diff options
context:
space:
mode:
Diffstat (limited to 'archival/bbunzip.c')
-rw-r--r--archival/bbunzip.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index b243afb..832a7bb 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -373,6 +373,15 @@ int unlzma_main(int argc UNUSED_PARAM, char **argv)
static
IF_DESKTOP(long long) int FAST_FUNC unpack_unxz(unpack_info_t *info UNUSED_PARAM)
{
+ struct {
+ uint32_t v1;
+ uint16_t v2;
+ } magic;
+ xread(STDIN_FILENO, &magic, 6);
+ if (magic.v1 != XZ_MAGIC1a || magic.v2 != XZ_MAGIC2a) {
+ bb_error_msg("invalid magic");
+ return -1;
+ }
return unpack_xz_stream(STDIN_FILENO, STDOUT_FILENO);
}
int unxz_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;