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-rw-r--r--archival/rpm.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/archival/rpm.c b/archival/rpm.c
index f46d88b92..cca17da33 100644
--- a/archival/rpm.c
+++ b/archival/rpm.c
@@ -56,6 +56,8 @@
#define TAG_DIRINDEXES 1116
#define TAG_BASENAMES 1117
#define TAG_DIRNAMES 1118
+#define TAG_PAYLOADCOMPRESSOR 1125
+
#define RPMFILE_CONFIG (1 << 0)
#define RPMFILE_DOC (1 << 1)
@@ -510,6 +512,7 @@ int rpm_main(int argc, char **argv)
int rpm2cpio_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int rpm2cpio_main(int argc UNUSED_PARAM, char **argv)
{
+ const char *str;
int rpm_fd;
G.pagesize = getpagesize();
@@ -520,11 +523,17 @@ int rpm2cpio_main(int argc UNUSED_PARAM, char **argv)
// /* We need to know whether child (gzip/bzip/etc) exits abnormally */
// signal(SIGCHLD, check_errors_in_children);
-//TODO: look for rpm tag RPMTAG_PAYLOADCOMPRESSOR (dec 1125, hex 0x465),
-// if the value is "lzma", set up decompressor without detection
-// (lzma can't be detected).
+ if (ENABLE_FEATURE_SEAMLESS_LZMA
+ && (str = rpm_getstr0(TAG_PAYLOADCOMPRESSOR)) != NULL
+ && strcmp(str, "lzma") == 0
+ ) {
+ // lzma compression can't be detected
+ // set up decompressor without detection
+ setup_lzma_on_fd(rpm_fd);
+ } else {
+ setup_unzip_on_fd(rpm_fd, /*fail_if_not_compressed:*/ 1);
+ }
- setup_unzip_on_fd(rpm_fd, /*fail_if_not_compressed:*/ 1);
if (bb_copyfd_eof(rpm_fd, STDOUT_FILENO) < 0)
bb_error_msg_and_die("error unpacking");