diff options
| author | Georg Brandl <georg@python.org> | 2012-02-20 18:54:16 (GMT) |
|---|---|---|
| committer | Georg Brandl <georg@python.org> | 2012-02-20 18:54:16 (GMT) |
| commit | 2daf6ae2495c862adf8bc717bfe9964081ea0b10 (patch) | |
| tree | ebd7efe668e4f7842c6d51bdbde47b00f92a57db /Python/sysmodule.c | |
| parent | ec1712a1662282c909b4cd4cc0c7486646bc9246 (diff) | |
| download | cpython-2daf6ae2495c862adf8bc717bfe9964081ea0b10.zip cpython-2daf6ae2495c862adf8bc717bfe9964081ea0b10.tar.gz cpython-2daf6ae2495c862adf8bc717bfe9964081ea0b10.tar.bz2 | |
Issue #13703: add a way to randomize the hash values of basic types (str, bytes, datetime)
in order to make algorithmic complexity attacks on (e.g.) web apps much more complicated.
The environment variable PYTHONHASHSEED and the new command line flag -R control this
behavior.
Diffstat (limited to 'Python/sysmodule.c')
| -rw-r--r-- | Python/sysmodule.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index c688172..6a7e914 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -1126,6 +1126,7 @@ static PyStructSequence_Field flags_fields[] = { /* {"unbuffered", "-u"}, */ /* {"skip_first", "-x"}, */ {"bytes_warning", "-b"}, + {"hash_randomization", "-R"}, {0} }; @@ -1134,9 +1135,9 @@ static PyStructSequence_Desc flags_desc = { flags__doc__, /* doc */ flags_fields, /* fields */ #ifdef RISCOS - 12 + 13 #else - 11 + 12 #endif }; @@ -1169,6 +1170,7 @@ make_flags(void) /* SetFlag(saw_unbuffered_flag); */ /* SetFlag(skipfirstline); */ SetFlag(Py_BytesWarningFlag); + SetFlag(Py_HashRandomizationFlag); #undef SetFlag if (PyErr_Occurred()) { |