.gitignore

@@ -1 +1 @@
-SOURCES/cffi-1.13.2.tar.gz
+SOURCES/cffi-1.11.5.tar.gz

.python-cffi.metadata

@@ -1 +0,0 @@
-ad94c1b64570ec3016a945d4b226d527de81f9b9 SOURCES/cffi-1.13.2.tar.gz

SOURCES/0001-from-buffer-require-writable.patch

@@ -0,0 +1,238 @@
+From c5c4d32c3e3ec0fbaabc4b9890fd17c9c58407d2 Mon Sep 17 00:00:00 2001
+From: Armin Rigo <arigo@tunes.org>
+Date: Sun, 16 Dec 2018 08:48:45 +0100
+Subject: [PATCH] Issue #394
+
+Implement ffi.from_buffer(x, require_writable=True)
+---
+ c/_cffi_backend.c                 | 11 +++++++----
+ c/ffi_obj.c                       | 13 ++++++++++---
+ c/test_c.py                       | 12 ++++++++++++
+ cffi/api.py                       |  5 +++--
+ doc/source/ref.rst                | 15 ++++++++++++++-
+ doc/source/whatsnew.rst           |  4 ++++
+ testing/cffi0/test_ffi_backend.py | 10 ++++++++++
+ testing/cffi1/test_ffi_obj.py     | 10 ++++++++++
+ testing/cffi1/test_new_ffi_1.py   | 10 ++++++++++
+ 9 files changed, 80 insertions(+), 10 deletions(-)
+
+diff --git a/c/_cffi_backend.c b/c/_cffi_backend.c
+index dc13c618..c6190e73 100644
+--- a/c/_cffi_backend.c
++++ b/c/_cffi_backend.c
+@@ -6741,7 +6741,8 @@ static int _my_PyObject_GetContiguousBuffer(PyObject *x, Py_buffer *view,
+     return 0;
+ }
+ 
+-static PyObject *direct_from_buffer(CTypeDescrObject *ct, PyObject *x)
++static PyObject *direct_from_buffer(CTypeDescrObject *ct, PyObject *x,
++                                    int require_writable)
+ {
+     CDataObject *cd;
+     Py_buffer *view;
+@@ -6761,7 +6762,7 @@ static PyObject *direct_from_buffer(CTypeDescrObject *ct, PyObject *x)
+         PyErr_NoMemory();
+         return NULL;
+     }
+-    if (_my_PyObject_GetContiguousBuffer(x, view, 0) < 0)
++    if (_my_PyObject_GetContiguousBuffer(x, view, require_writable) < 0)
+         goto error1;
+ 
+     cd = (CDataObject *)PyObject_GC_New(CDataObject_owngc_frombuf,
+@@ -6789,15 +6790,17 @@ static PyObject *b_from_buffer(PyObject *self, PyObject *args)
+ {
+     CTypeDescrObject *ct;
+     PyObject *x;
++    int require_writable = 0;
+ 
+-    if (!PyArg_ParseTuple(args, "O!O", &CTypeDescr_Type, &ct, &x))
++    if (!PyArg_ParseTuple(args, "O!O|i", &CTypeDescr_Type, &ct, &x,
++                          &require_writable))
+         return NULL;
+ 
+     if (!(ct->ct_flags & CT_IS_UNSIZED_CHAR_A)) {
+         PyErr_Format(PyExc_TypeError, "needs 'char[]', got '%s'", ct->ct_name);
+         return NULL;
+     }
+-    return direct_from_buffer(ct, x);
++    return direct_from_buffer(ct, x, require_writable);
+ }
+ 
+ static int _fetch_as_buffer(PyObject *x, Py_buffer *view, int writable_only)
+diff --git a/c/ffi_obj.c b/c/ffi_obj.c
+index 9e674660..cc5c7150 100644
+--- a/c/ffi_obj.c
++++ b/c/ffi_obj.c
+@@ -697,9 +697,16 @@ PyDoc_STRVAR(ffi_from_buffer_doc,
+ "containing large quantities of raw data in some other format, like\n"
+ "'array.array' or numpy arrays.");
+ 
+-static PyObject *ffi_from_buffer(PyObject *self, PyObject *arg)
++static PyObject *ffi_from_buffer(PyObject *self, PyObject *args, PyObject *kwds)
+ {
+-    return direct_from_buffer(g_ct_chararray, arg);
++    PyObject *arg;
++    int require_writable = 0;
++    static char *keywords[] = {"python_buffer", "require_writable", NULL};
++
++    if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|i:from_buffer", keywords,
++                                     &arg, &require_writable))
++        return NULL;
++    return direct_from_buffer(g_ct_chararray, arg, require_writable);
+ }
+ 
+ PyDoc_STRVAR(ffi_gc_doc,
+@@ -1072,7 +1079,7 @@ static PyMethodDef ffi_methods[] = {
+  {"cast",       (PyCFunction)ffi_cast,       METH_VARARGS, ffi_cast_doc},
+  {"dlclose",    (PyCFunction)ffi_dlclose,    METH_VARARGS, ffi_dlclose_doc},
+  {"dlopen",     (PyCFunction)ffi_dlopen,     METH_VARARGS, ffi_dlopen_doc},
+- {"from_buffer",(PyCFunction)ffi_from_buffer,METH_O,       ffi_from_buffer_doc},
++ {"from_buffer",(PyCFunction)ffi_from_buffer,METH_VKW,     ffi_from_buffer_doc},
+  {"from_handle",(PyCFunction)ffi_from_handle,METH_O,       ffi_from_handle_doc},
+  {"gc",         (PyCFunction)ffi_gc,         METH_VKW,     ffi_gc_doc},
+  {"getctype",   (PyCFunction)ffi_getctype,   METH_VKW,     ffi_getctype_doc},
+diff --git a/c/test_c.py b/c/test_c.py
+index b83c0aa8..b6bb752d 100644
+--- a/c/test_c.py
++++ b/c/test_c.py
+@@ -3741,6 +3741,18 @@ def test_from_buffer_more_cases():
+     check(4 | 8,  "CHB", "GTB")
+     check(4 | 16, "CHB", "ROB")
+ 
++def test_from_buffer_require_writable():
++    BChar = new_primitive_type("char")
++    BCharP = new_pointer_type(BChar)
++    BCharA = new_array_type(BCharP, None)
++    p1 = from_buffer(BCharA, b"foo", False)
++    assert p1 == from_buffer(BCharA, b"foo", False)
++    py.test.raises((TypeError, BufferError), from_buffer, BCharA, b"foo", True)
++    ba = bytearray(b"foo")
++    p1 = from_buffer(BCharA, ba, True)
++    p1[0] = b"g"
++    assert ba == b"goo"
++
+ def test_memmove():
+     Short = new_primitive_type("short")
+     ShortA = new_array_type(new_pointer_type(Short), None)
+diff --git a/cffi/api.py b/cffi/api.py
+index 4ea08bb4..63468d06 100644
+--- a/cffi/api.py
++++ b/cffi/api.py
+@@ -341,7 +341,7 @@ class FFI(object):
+    #    """
+    #    note that 'buffer' is a type, set on this instance by __init__
+ 
+-    def from_buffer(self, python_buffer):
++    def from_buffer(self, python_buffer, require_writable=False):
+         """Return a <cdata 'char[]'> that points to the data of the
+         given Python object, which must support the buffer interface.
+         Note that this is not meant to be used on the built-in types
+@@ -349,7 +349,8 @@ class FFI(object):
+         but only on objects containing large quantities of raw data
+         in some other format, like 'array.array' or numpy arrays.
+         """
+-        return self._backend.from_buffer(self.BCharA, python_buffer)
++        return self._backend.from_buffer(self.BCharA, python_buffer,
++                                         require_writable)
+ 
+     def memmove(self, dest, src, n):
+         """ffi.memmove(dest, src, n) copies n bytes of memory from src to dest.
+diff --git a/doc/source/ref.rst b/doc/source/ref.rst
+index 23ea733a..04c0eedd 100644
+--- a/doc/source/ref.rst
++++ b/doc/source/ref.rst
+@@ -188,7 +188,8 @@ byte strings).  Use ``buf[:]`` instead.
+ *New in version 1.10:* ``ffi.buffer`` is now the type of the returned
+ buffer objects; ``ffi.buffer()`` actually calls the constructor.
+ 
+-**ffi.from_buffer(python_buffer)**: return a ``<cdata 'char[]'>`` that
++**ffi.from_buffer(python_buffer, require_writable=False)**:
++return a ``<cdata 'char[]'>`` that
+ points to the data of the given Python object, which must support the
+ buffer interface.  This is the opposite of ``ffi.buffer()``.  It gives
+ a reference to the existing data, not a copy.
+@@ -216,6 +217,18 @@ bytearray objects were supported in version 1.7 onwards (careful, if you
+ resize the bytearray, the ``<cdata>`` object will point to freed
+ memory); and byte strings were supported in version 1.8 onwards.
+ 
++*New in version 1.12:* added the ``require_writable`` argument.  If set to
++True, the function fails if the buffer obtained from ``python_buffer`` is
++read-only (e.g. if ``python_buffer`` is a byte string).  The exact exception is
++raised by the object itself, and for things like bytes it varies with the
++Python version, so don't rely on it.  (Before version 1.12, the same effect can
++be achieved with a hack: call ``ffi.memmove(python_buffer, b"", 0)``.  This has
++no effect if the object is writable, but fails if it is read-only.)
++
++Please keep in mind that CFFI does not implement the C keyword ``const``: even
++if you set ``require_writable`` to False explicitly, you still get a regular
++read-write cdata pointer.
++
+ 
+ ffi.memmove()
+ +++++++++++++
+diff --git a/testing/cffi0/test_ffi_backend.py b/testing/cffi0/test_ffi_backend.py
+index 362a50a5..e465c2d2 100644
+--- a/testing/cffi0/test_ffi_backend.py
++++ b/testing/cffi0/test_ffi_backend.py
+@@ -326,6 +326,16 @@ class TestBitfield:
+         assert ffi.typeof(c) is ffi.typeof("char[]")
+         ffi.cast("unsigned short *", c)[1] += 500
+         assert list(a) == [10000, 20500, 30000]
++        assert c == ffi.from_buffer(a, True)
++        assert c == ffi.from_buffer(a, require_writable=True)
++        #
++        p = ffi.from_buffer(b"abcd")
++        assert p[2] == b"c"
++        #
++        assert p == ffi.from_buffer(b"abcd", False)
++        py.test.raises((TypeError, BufferError), ffi.from_buffer, b"abcd", True)
++        py.test.raises((TypeError, BufferError), ffi.from_buffer, b"abcd",
++                                                 require_writable=True)
+ 
+     def test_memmove(self):
+         ffi = FFI()
+diff --git a/testing/cffi1/test_ffi_obj.py b/testing/cffi1/test_ffi_obj.py
+index 2b5d764e..4222740e 100644
+--- a/testing/cffi1/test_ffi_obj.py
++++ b/testing/cffi1/test_ffi_obj.py
+@@ -243,6 +243,16 @@ def test_ffi_from_buffer():
+     assert ffi.typeof(c) is ffi.typeof("char[]")
+     ffi.cast("unsigned short *", c)[1] += 500
+     assert list(a) == [10000, 20500, 30000]
++    assert c == ffi.from_buffer(a, True)
++    assert c == ffi.from_buffer(a, require_writable=True)
++    #
++    p = ffi.from_buffer(b"abcd")
++    assert p[2] == b"c"
++    #
++    assert p == ffi.from_buffer(b"abcd", False)
++    py.test.raises((TypeError, BufferError), ffi.from_buffer, b"abcd", True)
++    py.test.raises((TypeError, BufferError), ffi.from_buffer, b"abcd",
++                                             require_writable=True)
+ 
+ def test_memmove():
+     ffi = _cffi1_backend.FFI()
+diff --git a/testing/cffi1/test_new_ffi_1.py b/testing/cffi1/test_new_ffi_1.py
+index 2c93db2f..f89769d6 100644
+--- a/testing/cffi1/test_new_ffi_1.py
++++ b/testing/cffi1/test_new_ffi_1.py
+@@ -1653,6 +1653,16 @@ class TestNewFFI1:
+         assert ffi.typeof(c) is ffi.typeof("char[]")
+         ffi.cast("unsigned short *", c)[1] += 500
+         assert list(a) == [10000, 20500, 30000]
++        assert c == ffi.from_buffer(a, True)
++        assert c == ffi.from_buffer(a, require_writable=True)
++        #
++        p = ffi.from_buffer(b"abcd")
++        assert p[2] == b"c"
++        #
++        assert p == ffi.from_buffer(b"abcd", False)
++        py.test.raises((TypeError, BufferError), ffi.from_buffer, b"abcd", True)
++        py.test.raises((TypeError, BufferError), ffi.from_buffer, b"abcd",
++                                                 require_writable=True)
+ 
+     def test_all_primitives(self):
+         assert set(PRIMITIVE_TO_INDEX) == set([
+-- 
+GitLab
+

SPECS/python-cffi.spec

@@ -1,51 +1,43 @@
-%bcond_with docs
-
 Name:           python-cffi
-Version:        1.13.2
-Release:        3%{?dist}
+Version:        1.11.5
+Release:        6%{?dist}
 Summary:        Foreign Function Interface for Python to call C code
 License:        MIT
-URL:            https://cffi.readthedocs.org/
-Source0:        %{pypi_source cffi}
+URL:            http://cffi.readthedocs.org/
+Source0:        https://pypi.io/packages/source/c/cffi/cffi-%{version}.tar.gz
 
-# Exclude i686 arch. Due to a modularity issue it's being added to the
-# x86_64 compose of CRB, but we don't want to ship it at all.
-# See: https://projects.engineering.redhat.com/browse/RCM-72605
-ExcludeArch: i686
+Patch0001:      0001-from-buffer-require-writable.patch
 
 BuildRequires:  libffi-devel
-BuildRequires:  gcc
+BuildRequires:  python3-sphinx
+BuildRequires:  python3-devel
+BuildRequires:  python3-setuptools
+BuildRequires:  python3-Cython
+BuildRequires:  python3-pycparser
+BuildRequires:  python3-pytest
 
-# For tests:
-BuildRequires:  gcc-c++
-
-%?python_enable_dependency_generator
+# Do not check .so files in the python_sitelib directory
+# or any files in the application's directory for provides
+%global __provides_exclude_from ^(%{python3_sitearch})/.*\\.so$
 
 %description
 Foreign Function Interface for Python, providing a convenient and
 reliable way of calling existing C code from Python. The interface is
 based on LuaJIT’s FFI.
 
-%package -n python%{python3_pkgversion}-cffi
+%package -n python3-cffi
 Summary:        Foreign Function Interface for Python 3 to call C code
-%if %{with docs}
-BuildRequires:  python%{python3_pkgversion}-sphinx
-%endif
-BuildRequires:  python%{python3_pkgversion}-pytest
-BuildRequires:  python%{python3_pkgversion}-devel
-BuildRequires:  python%{python3_pkgversion}-setuptools
-BuildRequires:  python%{python3_pkgversion}-pycparser
-BuildRequires:  python%{python3_pkgversion}-rpm-macros
-%{?python_provide:%python_provide python%{python3_pkgversion}-cffi}
+Requires:       python3-pycparser
+%{?python_provide:%python_provide python3-cffi}
 
-%description -n python%{python3_pkgversion}-cffi
+%description -n python3-cffi
 Foreign Function Interface for Python, providing a convenient and
 reliable way of calling existing C code from Python. The interface is
 based on LuaJIT’s FFI.
-
 %package doc
 Summary:        Documentation for CFFI
 BuildArch:      noarch
+Requires:       python3-cffi = %{version}-%{release}
 
 %description doc
 Documentation for CFFI, the Foreign Function Interface for Python.
@@ -55,82 +47,37 @@ Documentation for CFFI, the Foreign Function Interface for Python.
 
 %build
 %py3_build
-
-%if %{with docs}
 cd doc
-make SPHINXBUILD=sphinx-build-3 html
+make html
 rm build/html/.buildinfo
-%endif
 
-%install
-%py3_install
 
 %check
-PYTHONPATH=%{buildroot}%{python3_sitearch} %{__python3} -m pytest c/ testing/
+PYTHONPATH=%{buildroot}%{python3_sitearch} %{__python3} -m pytest testing/cffi0 testing/cffi1
 
-%files -n python%{python3_pkgversion}-cffi
+%install
+%py3_install \
+    --record %{buildroot}%{python3_sitearch}/cffi-%{version}-py%{python3_version}.egg-info/installed-files.txt
+
+%files -n python3-cffi
 %doc PKG-INFO
 %license LICENSE
-%{python3_sitearch}/cffi/
-%{python3_sitearch}/_cffi_backend.*.so
-%{python3_sitearch}/cffi-%{version}-py%{python3_version}.egg-info/
+%{python3_sitearch}/*
 
-%if %{with docs}
 %files doc
 %doc doc/build/html
-%endif
+
 
 %changelog
-* Fri Dec 13 2019 Tomas Orsava <torsava@redhat.com> - 1.13.2-3
-- Exclude unsupported i686 arch
+* Wed Feb 22 2023 Christian Heimes <cheimes@redhat.com>
+- Backport from_buffer(..., require_writable=True), resolves rhbz#2172416
+- Enable upstream tests
 
-* Wed Nov 20 2019 Lumír Balhar <lbalhar@redhat.com> - 1.13.2-2
-- Adjusted for Python 3.8 module in RHEL 8
+* Mon Oct 22 2018 Christian Heimes <cheimes@redhat.com> - 1.11.5-5
+- Build doc package, resolves rhbz#1641665
 
-* Mon Nov 18 2019 Lumír Balhar <lbalhar@redhat.com> - 1.13.2-1
-- Update to 1.13.2 (#1768219)
-
-* Mon Oct 21 2019 Miro Hrončok <mhroncok@redhat.com> - 1.13.1-1
-- Update to 1.13.1 (#1763767)
-
-* Tue Oct 15 2019 Miro Hrončok <mhroncok@redhat.com> - 1.13.0-1
-- Update to 1.13.0 (#1761757)
-
-* Sun Oct 13 2019 Miro Hrončok <mhroncok@redhat.com> - 1.12.3-5
-- Subpackage python2-cffi has been removed
-  See https://fedoraproject.org/wiki/Changes/Mass_Python_2_Package_Removal
-
-* Thu Oct 03 2019 Miro Hrončok <mhroncok@redhat.com> - 1.12.3-4
-- Rebuilt for Python 3.8.0rc1 (#1748018)
-
-* Mon Aug 26 2019 Miro Hrončok <mhroncok@redhat.com> - 1.12.3-3
-- Reduce Python 2 build dependencies
-
-* Fri Aug 16 2019 Miro Hrončok <mhroncok@redhat.com> - 1.12.3-2
-- Rebuilt for Python 3.8
-
-* Thu Jul 25 2019 Miro Hrončok <mhroncok@redhat.com> - 1.12.3-1
-- Update to 1.12.3 (#1701577)
-- https://cffi.readthedocs.io/en/latest/whatsnew.html#v1-12-3
-
-* Mon Jul 15 2019 Petr Viktorin <pviktori@redhat.com> - 1.12.2-2
-- Remove unused build dependency on Cython
-- Remove duplicate build dependency on pytest
-
-* Wed Mar 27 2019 Miro Hrončok <mhroncok@redhat.com> - 1.12.2-1
-- Update to 1.12.2 (#1677888)
-
-* Sat Feb 02 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.11.5-7
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
-
-* Wed Aug 22 2018 Miro Hrončok <mhroncok@redhat.com> - 1.11.5-6
-- Fix FTBFS (#1605627)
-
-* Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.11.5-5
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
-
-* Fri Jun 15 2018 Miro Hrončok <mhroncok@redhat.com> - 1.11.5-4
-- Rebuilt for Python 3.7
+* Thu Jun 07 2018 Troy Dawson <tdawson@redhat.com> - 1.11.5-4
+- No python2 in RHEL8
 
 * Fri May 25 2018 Gwyn Ciesla <limburgher@gmail.com> - 1.11.5-3
 - Disable tests to fix mock-only FTBFS.