[Bug binutils/26945] Unsafe chown+chmod in smart_rename, possibly elsewhere

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=26945

--- Comment #21 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The binutils-2_36-branch branch has been updated by Alan Modra
<amodra@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d3edaa91d4cf7202ec14342410194841e2f67f12

commit d3edaa91d4cf7202ec14342410194841e2f67f12
Author: Alan Modra <amodra@gmail.com>
Date:   Fri Feb 26 11:30:32 2021 +1030

    Reinstate various pieces backed out from smart_rename changes

    In the interests of a stable release various last minute smart_rename
    patches were backed out of the 2.36 branch.  The main reason to
    reinstate some of those backed out changes here is to make necessary
    followup fixes to commit 8e03235147a9 simple cherry-picks from
    mainline.  A secondary reason is that ar -M support isn't fixed for
    pr26945 without this patch.

            PR 26945
            * ar.c: Don't include libbfd.h.
            (write_archive): Replace xmalloc+strcpy with xstrdup.
            * arsup.c (temp_name, real_ofd): New static variables.
            (ar_open): Use make_tempname and bfd_fdopenw.
            (ar_save): Adjust to suit ar_open changes.
            * objcopy.c: Don't include libbfd.h.
            * rename.c: Rename and reorder variables.

    (cherry picked from commit 95b91a043aeaeb546d2fea556d84a2de1e917770)

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