Add notes about possible new WIM format and LZMS compression

[wimlib] / src / header.c

diff --git a/src/header.c b/src/header.c
index 13b098dc8ea10f6a373d6abb3318a1e4245d4337..ad7f3ce01aa07a7f081503f05da6becf4f2349c2 100644 (file)
--- a/src/header.c
+++ b/src/header.c
@@ -117,6 +117,10 @@ read_wim_header(const tchar *filename, struct filedes *in_fd,
                ERROR("\"%"TS"\": The WIM header says the WIM version is %u, "
                      "but wimlib only knows about version %u",
                      filename, le32_to_cpu(disk_hdr.wim_version), WIM_VERSION);
+               if (le32_to_cpu(disk_hdr.wim_flags) & WIM_HDR_FLAG_COMPRESS_LZMS) {
+                       ERROR("\"%"TS"\": This WIM uses LZMS compression, "
+                             "which is not supported by wimlib.", filename);
+               }
                return WIMLIB_ERR_UNKNOWN_VERSION;
        }