[ruby-cvs:78223] c5c05460ac (master): Warn on access/modify of $SAFE, and remove effects of modifying $SAFE

Jeremy Evans	2019-09-21 11:06:22 +0900 (Sat, 21 Sep 2019)

  New Revision: c5c05460ac

  https://github.com/ruby/ruby/commit/c5c05460ac

  Log:
    Warn on access/modify of $SAFE, and remove effects of modifying $SAFE
    
    This removes the security features added by $SAFE = 1, and warns for access
    or modification of $SAFE from Ruby-level, as well as warning when calling
    all public C functions related to $SAFE.
    
    This modifies some internal functions that took a safe level argument
    to no longer take the argument.
    
    rb_require_safe now warns, rb_require_string has been added as a
    version that takes a VALUE and does not warn.
    
    One public C function that still takes a safe level argument and that
    this doesn't warn for is rb_eval_cmd.  We may want to consider
    adding an alternative method that does not take a safe level argument,
    and warn for rb_eval_cmd.

  Modified files:
    dir.c
    encoding.c
    error.c
    eval.c
    ext/etc/etc.c
    ext/io/console/console.c
    ext/openssl/ossl_rand.c
    ext/openssl/ossl_x509store.c
    ext/readline/readline.c
    ext/socket/constants.c
    ext/socket/raddrinfo.c
    ext/socket/unixsocket.c
    ext/syslog/syslog.c
    ext/win32ole/win32ole.c
    ext/win32ole/win32ole_event.c
    file.c
    gc.c
    hash.c
    include/ruby/intern.h
    include/ruby/ruby.h
    internal.h
    io.c
    iseq.c
    lib/debug.rb
    lib/drb/drb.rb
    lib/erb.rb
    lib/net/smtp.rb
    lib/tempfile.rb
    lib/tmpdir.rb
    load.c
    parse.y
    proc.c
    process.c
    ruby.c
    safe.c
    signal.c
    spec/ruby/language/predefined_spec.rb
    spec/ruby/language/safe_spec.rb
    spec/ruby/optional/capi/string_spec.rb
    test/net/imap/test_imap_response_parser.rb
    test/pathname/test_pathname.rb
    test/readline/test_readline.rb
    test/ruby/test_alias.rb
    test/ruby/test_file.rb
    test/ruby/test_optimization.rb
    test/ruby/test_proc.rb
    test/ruby/test_require.rb
    test/ruby/test_rubyoptions.rb
    test/ruby/test_thread.rb
    test/test_tempfile.rb
    test/test_tmpdir.rb
    test/win32ole/test_win32ole.rb
    test/win32ole/test_win32ole_event.rb
    thread.c
    tool/lib/leakchecker.rb
    transcode.c
    variable.c
    vm_core.h
    vm_eval.c