Add experimental support for Windows VSS

[wimlib] / src / write.c

diff --git a/src/write.c b/src/write.c
index f3308a24c14f88ffa47b579680c2e484a040b936..9f48d3f1ded5973d1a215c5cd4b23f9f391d5d12 100644 (file)
--- a/src/write.c
+++ b/src/write.c
@@ -639,6 +639,7 @@ do_done_with_blob(struct blob_descriptor *blob,
 {
        int ret;
        struct wim_inode *inode;
+       const tchar *path;
        tchar *cookie1;
        tchar *cookie2;
 
@@ -652,10 +653,12 @@ do_done_with_blob(struct blob_descriptor *blob,
        if (--inode->i_num_remaining_streams > 0)
                return 0;
 
-       cookie1 = progress_get_streamless_path(blob->file_on_disk);
-       cookie2 = progress_get_win32_path(blob->file_on_disk);
+       path = blob_file_path(blob);
 
-       ret = done_with_file(blob->file_on_disk, progfunc, progctx);
+       cookie1 = progress_get_streamless_path(path);
+       cookie2 = progress_get_win32_path(path);
+
+       ret = done_with_file(path, progfunc, progctx);
 
        progress_put_win32_path(cookie2);
        progress_put_streamless_path(cookie1);
@@ -2430,7 +2433,10 @@ finish_write(WIMStruct *wim, int image, int write_flags,
        ret = WIMLIB_ERR_WRITE;
        if (unlikely(write_flags & WIMLIB_WRITE_FLAG_UNSAFE_COMPACT)) {
                /* Truncate any data the compaction freed up.  */
-               if (ftruncate(wim->out_fd.fd, wim->out_fd.offset)) {
+               if (ftruncate(wim->out_fd.fd, wim->out_fd.offset) &&
+                   errno != EINVAL) /* allow compaction on untruncatable files,
+                                       e.g. block devices  */
+               {
                        ERROR_WITH_ERRNO("Failed to truncate the output WIM file");
                        goto out;
                }