45138d3584
The `Modules/hashlib.h` helper file is now removed and split into multiple files: * `Modules/_hashlib/hashlib_buffer.[ch]` -- Utilities for getting a buffer view and handling buffer inputs. * `Modules/_hashlib/hashlib_fetch.h` -- Utilities used when fetching a message digest from a digest-like identifier. Currently, this file only contains common error messages as the fetching API is not yet implemented. * `Modules/_hashlib/hashlib_mutex.h` -- Utilities for managing the lock on cryptographic hash objects.
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
#ifndef _HASHLIB_HASHLIB_BUFFER_H
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#define _HASHLIB_HASHLIB_BUFFER_H
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#include "Python.h"
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/*
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* Allow to use the 'data' or 'string' keyword in hashlib.new()
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* and other hash functions named constructors.
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*
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* - If 'data' and 'string' are both non-NULL, set an exception and return -1.
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* - If 'data' and 'string' are both NULL, set '*res' to NULL and return 0.
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* - Otherwise, set '*res' to 'data' or 'string' and return 1. A deprecation
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* warning is set when 'string' is specified.
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*
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* The symbol is exported for '_hashlib' and HACL*-based extension modules.
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*/
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PyAPI_FUNC(int)
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_Py_hashlib_data_argument(PyObject **res, PyObject *data, PyObject *string);
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/*
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* Obtain a buffer view from a buffer-like object 'obj'.
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*
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* On success, store the result in 'view' and return 0.
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* On error, set an exception and return -1.
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*
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* The symbol is exported for '_hashlib' and HACL*-based extension modules.
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*/
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PyAPI_FUNC(int)
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_Py_hashlib_get_buffer_view(PyObject *obj, Py_buffer *view);
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/*
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* Call _Py_hashlib_get_buffer_view() and check if it succeeded.
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*
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* On error, set an exception and execute the ERRACTION statements.
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*/
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#define GET_BUFFER_VIEW_OR_ERROR(OBJ, VIEW, ERRACTION) \
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do { \
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if (_Py_hashlib_get_buffer_view(OBJ, VIEW) < 0) { \
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assert(PyErr_Occurred()); \
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ERRACTION; \
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} \
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} while (0)
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/* Specialization of GET_BUFFER_VIEW_OR_ERROR() returning NULL on error. */
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#define GET_BUFFER_VIEW_OR_ERROUT(OBJ, VIEW) \
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GET_BUFFER_VIEW_OR_ERROR(OBJ, VIEW, return NULL)
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#endif // !_HASHLIB_HASHLIB_BUFFER_H
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