[Bug 13036] New: busybox ar unable to uncompress archives produced with -D deterministic-archives options from binutils ar

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=13036

            Bug ID: 13036
           Summary: busybox ar unable to uncompress archives produced with
                    -D deterministic-archives options from binutils ar
           Product: Busybox
           Version: 1.33.x
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at busybox.net
          Reporter: raj.khem at gmail.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

Here is test case

$ touch test
$ ar -crfD xx
$ ./busybox_unstripped ar -x ./xx
ar: unrecognized file type


It works ok if the archive is produced using ar -crfU

It seems that the file modes change from 100644 to 0644 in archive header
which confuses busybox ar where its checking 

libarchive/data_extract_all.c

    /* Create the filesystem entry */
      switch (file_header->mode & S_IFMT) {
      case S_IFREG: {
...


and fails this check and reports the above mentioned error.

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