CoCalc -- blake2b

GitHub Repository: allendowney/cpython
Path: blob/main/Modules/_blake2/clinic/blake2b_impl.c.h
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/*[clinic input]
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preserve
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[clinic start generated code]*/
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#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
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#  include "pycore_gc.h"            // PyGC_Head
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#  include "pycore_runtime.h"       // _Py_ID()
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#endif
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PyDoc_STRVAR(py_blake2b_new__doc__,
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"blake2b(data=b\'\', /, *, digest_size=_blake2.blake2b.MAX_DIGEST_SIZE,\n"
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"        key=b\'\', salt=b\'\', person=b\'\', fanout=1, depth=1, leaf_size=0,\n"
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"        node_offset=0, node_depth=0, inner_size=0, last_node=False,\n"
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"        usedforsecurity=True)\n"
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"--\n"
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"\n"
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"Return a new BLAKE2b hash object.");
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static PyObject *
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py_blake2b_new_impl(PyTypeObject *type, PyObject *data, int digest_size,
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                    Py_buffer *key, Py_buffer *salt, Py_buffer *person,
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                    int fanout, int depth, unsigned long leaf_size,
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                    unsigned long long node_offset, int node_depth,
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                    int inner_size, int last_node, int usedforsecurity);
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static PyObject *
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py_blake2b_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
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{
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    PyObject *return_value = NULL;
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    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
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    #define NUM_KEYWORDS 12
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    static struct {
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        PyGC_Head _this_is_not_used;
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        PyObject_VAR_HEAD
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        PyObject *ob_item[NUM_KEYWORDS];
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    } _kwtuple = {
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        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
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        .ob_item = { &_Py_ID(digest_size), &_Py_ID(key), &_Py_ID(salt), &_Py_ID(person), &_Py_ID(fanout), &_Py_ID(depth), &_Py_ID(leaf_size), &_Py_ID(node_offset), &_Py_ID(node_depth), &_Py_ID(inner_size), &_Py_ID(last_node), &_Py_ID(usedforsecurity), },
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    };
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    #undef NUM_KEYWORDS
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    #define KWTUPLE (&_kwtuple.ob_base.ob_base)
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    #else  // !Py_BUILD_CORE
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    #  define KWTUPLE NULL
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    #endif  // !Py_BUILD_CORE
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    static const char * const _keywords[] = {"", "digest_size", "key", "salt", "person", "fanout", "depth", "leaf_size", "node_offset", "node_depth", "inner_size", "last_node", "usedforsecurity", NULL};
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    static _PyArg_Parser _parser = {
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        .keywords = _keywords,
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        .fname = "blake2b",
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        .kwtuple = KWTUPLE,
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    };
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    #undef KWTUPLE
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    PyObject *argsbuf[13];
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    PyObject * const *fastargs;
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    Py_ssize_t nargs = PyTuple_GET_SIZE(args);
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    Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 0;
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    PyObject *data = NULL;
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    int digest_size = BLAKE2B_OUTBYTES;
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    Py_buffer key = {NULL, NULL};
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    Py_buffer salt = {NULL, NULL};
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    Py_buffer person = {NULL, NULL};
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    int fanout = 1;
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    int depth = 1;
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    unsigned long leaf_size = 0;
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    unsigned long long node_offset = 0;
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    int node_depth = 0;
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    int inner_size = 0;
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    int last_node = 0;
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    int usedforsecurity = 1;
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    fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 0, 1, 0, argsbuf);
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    if (!fastargs) {
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        goto exit;
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    }
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    if (nargs < 1) {
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        goto skip_optional_posonly;
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    }
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    noptargs--;
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    data = fastargs[0];
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skip_optional_posonly:
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    if (!noptargs) {
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        goto skip_optional_kwonly;
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    }
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    if (fastargs[1]) {
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        digest_size = _PyLong_AsInt(fastargs[1]);
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        if (digest_size == -1 && PyErr_Occurred()) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[2]) {
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        if (PyObject_GetBuffer(fastargs[2], &key, PyBUF_SIMPLE) != 0) {
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            goto exit;
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        }
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        if (!PyBuffer_IsContiguous(&key, 'C')) {
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            _PyArg_BadArgument("blake2b", "argument 'key'", "contiguous buffer", fastargs[2]);
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[3]) {
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        if (PyObject_GetBuffer(fastargs[3], &salt, PyBUF_SIMPLE) != 0) {
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            goto exit;
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        }
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        if (!PyBuffer_IsContiguous(&salt, 'C')) {
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            _PyArg_BadArgument("blake2b", "argument 'salt'", "contiguous buffer", fastargs[3]);
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[4]) {
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        if (PyObject_GetBuffer(fastargs[4], &person, PyBUF_SIMPLE) != 0) {
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            goto exit;
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        }
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        if (!PyBuffer_IsContiguous(&person, 'C')) {
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            _PyArg_BadArgument("blake2b", "argument 'person'", "contiguous buffer", fastargs[4]);
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[5]) {
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        fanout = _PyLong_AsInt(fastargs[5]);
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        if (fanout == -1 && PyErr_Occurred()) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[6]) {
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        depth = _PyLong_AsInt(fastargs[6]);
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        if (depth == -1 && PyErr_Occurred()) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[7]) {
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        if (!_PyLong_UnsignedLong_Converter(fastargs[7], &leaf_size)) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[8]) {
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        if (!_PyLong_UnsignedLongLong_Converter(fastargs[8], &node_offset)) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[9]) {
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        node_depth = _PyLong_AsInt(fastargs[9]);
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        if (node_depth == -1 && PyErr_Occurred()) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[10]) {
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        inner_size = _PyLong_AsInt(fastargs[10]);
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        if (inner_size == -1 && PyErr_Occurred()) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    if (fastargs[11]) {
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        last_node = PyObject_IsTrue(fastargs[11]);
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        if (last_node < 0) {
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            goto exit;
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        }
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        if (!--noptargs) {
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            goto skip_optional_kwonly;
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        }
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    }
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    usedforsecurity = PyObject_IsTrue(fastargs[12]);
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    if (usedforsecurity < 0) {
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        goto exit;
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    }
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skip_optional_kwonly:
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    return_value = py_blake2b_new_impl(type, data, digest_size, &key, &salt, &person, fanout, depth, leaf_size, node_offset, node_depth, inner_size, last_node, usedforsecurity);
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exit:
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    /* Cleanup for key */
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    if (key.obj) {
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       PyBuffer_Release(&key);
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    }
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    /* Cleanup for salt */
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    if (salt.obj) {
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       PyBuffer_Release(&salt);
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    }
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    /* Cleanup for person */
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    if (person.obj) {
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       PyBuffer_Release(&person);
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    }
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    return return_value;
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}
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PyDoc_STRVAR(_blake2_blake2b_copy__doc__,
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"copy($self, /)\n"
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"--\n"
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"\n"
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"Return a copy of the hash object.");
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#define _BLAKE2_BLAKE2B_COPY_METHODDEF    \
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    {"copy", (PyCFunction)_blake2_blake2b_copy, METH_NOARGS, _blake2_blake2b_copy__doc__},
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static PyObject *
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_blake2_blake2b_copy_impl(BLAKE2bObject *self);
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static PyObject *
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_blake2_blake2b_copy(BLAKE2bObject *self, PyObject *Py_UNUSED(ignored))
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{
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    return _blake2_blake2b_copy_impl(self);
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}
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PyDoc_STRVAR(_blake2_blake2b_update__doc__,
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"update($self, data, /)\n"
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"--\n"
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"\n"
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"Update this hash object\'s state with the provided bytes-like object.");
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#define _BLAKE2_BLAKE2B_UPDATE_METHODDEF    \
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    {"update", (PyCFunction)_blake2_blake2b_update, METH_O, _blake2_blake2b_update__doc__},
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PyDoc_STRVAR(_blake2_blake2b_digest__doc__,
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"digest($self, /)\n"
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"--\n"
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"\n"
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"Return the digest value as a bytes object.");
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#define _BLAKE2_BLAKE2B_DIGEST_METHODDEF    \
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    {"digest", (PyCFunction)_blake2_blake2b_digest, METH_NOARGS, _blake2_blake2b_digest__doc__},
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static PyObject *
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_blake2_blake2b_digest_impl(BLAKE2bObject *self);
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static PyObject *
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_blake2_blake2b_digest(BLAKE2bObject *self, PyObject *Py_UNUSED(ignored))
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{
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    return _blake2_blake2b_digest_impl(self);
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}
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PyDoc_STRVAR(_blake2_blake2b_hexdigest__doc__,
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"hexdigest($self, /)\n"
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"--\n"
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"\n"
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"Return the digest value as a string of hexadecimal digits.");
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#define _BLAKE2_BLAKE2B_HEXDIGEST_METHODDEF    \
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    {"hexdigest", (PyCFunction)_blake2_blake2b_hexdigest, METH_NOARGS, _blake2_blake2b_hexdigest__doc__},
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static PyObject *
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_blake2_blake2b_hexdigest_impl(BLAKE2bObject *self);
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static PyObject *
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_blake2_blake2b_hexdigest(BLAKE2bObject *self, PyObject *Py_UNUSED(ignored))
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{
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    return _blake2_blake2b_hexdigest_impl(self);
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}
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/*[clinic end generated code: output=996b4fe396824797 input=a9049054013a1b77]*/
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