Support decompressing files with unsupported check types.
This is enabled at compile time by defining XZ_DEC_ANY_CHECK.
If the Check ID is not supported, xz_dec_run() will return
XZ_UNSUPPORTED_CHECK. In multi-call mode, decoding can be
then continued normally. In single-call mode, decoding
cannot be continued, thus this feature is useful only
in multi-call mode.
diff --git a/userspace/xzminidec.c b/userspace/xzminidec.c
index 71feb49..91b27ba 100644
--- a/userspace/xzminidec.c
+++ b/userspace/xzminidec.c
@@ -72,6 +72,16 @@
if (ret == XZ_OK)
continue;
+#ifdef XZ_DEC_ANY_CHECK
+ if (ret == XZ_UNSUPPORTED_CHECK) {
+ fputs(argv[0], stderr);
+ fputs(": ", stderr);
+ fputs("Unsupported check; not verifying "
+ "file integrity\n", stderr);
+ continue;
+ }
+#endif
+
if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos
|| fclose(stdout)) {
msg = "Write error\n";
