bpo-38622: Add missing audit events for ctypes module (GH-17158)

Doc/library/ctypes.rst

@@ -1526,6 +1526,12 @@ object is available:
    ``ctypes.dlsym`` with arguments ``library`` (the library object) and ``name``
    (the symbol's name as a string or integer).
 
+.. audit-event:: ctypes.dlsym/handle handle,name ctypes.LibraryLoader
+
+   In cases when only the library handle is available rather than the object,
+   accessing a function raises an auditing event ``ctypes.dlsym/handle`` with
+   arguments ``handle`` (the raw library handle) and ``name``.
+
 .. _ctypes-foreign-functions:
 
 Foreign functions
@@ -1611,6 +1617,19 @@ They are instances of a private class:
    passed arguments.
 
 
+.. audit-event:: ctypes.seh_exception code foreign-functions
+
+   On Windows, when a foreign function call raises a system exception (for
+   example, due to an access violation), it will be captured and replaced with
+   a suitable Python exception. Further, an auditing event
+   ``ctypes.seh_exception`` with argument ``code`` will be raised, allowing an
+   audit hook to replace the exception with its own.
+
+.. audit-event:: ctypes.call_function func_pointer,arguments ctype-foreign-functions
+
+   Some ways to invoke foreign function calls may raise an auditing event
+   ``ctypes.call_function`` with arguments ``function pointer`` and ``arguments``.
+
 .. _ctypes-function-prototypes:
 
 Function prototypes
@@ -1802,6 +1821,8 @@ Utility functions
    Returns the address of the memory buffer as integer.  *obj* must be an
    instance of a ctypes type.
 
+   .. audit-event:: ctypes.addressof obj ctypes.addressof
+
 
 .. function:: alignment(obj_or_type)
 
@@ -1844,6 +1865,7 @@ Utility functions
    termination character. An integer can be passed as second argument which allows
    specifying the size of the array if the length of the bytes should not be used.
 
+   .. audit-event:: ctypes.create_string_buffer init,size ctypes.create_string_buffer
 
 
 .. function:: create_unicode_buffer(init_or_size, size=None)
@@ -1860,6 +1882,7 @@ Utility functions
    allows specifying the size of the array if the length of the string should not
    be used.
 
+   .. audit-event:: ctypes.create_unicode_buffer init,size ctypes.create_unicode_buffer
 
 
 .. function:: DllCanUnloadNow()
@@ -1917,11 +1940,15 @@ Utility functions
    Returns the current value of the ctypes-private copy of the system
    :data:`errno` variable in the calling thread.
 
+   .. audit-event:: ctypes.get_errno "" ctypes.get_errno
+
 .. function:: get_last_error()
 
    Windows only: returns the current value of the ctypes-private copy of the system
    :data:`LastError` variable in the calling thread.
 
+   .. audit-event:: ctypes.get_last_error "" ctypes.get_last_error
+
 .. function:: memmove(dst, src, count)
 
    Same as the standard C memmove library function: copies *count* bytes from
@@ -1965,6 +1992,7 @@ Utility functions
    Set the current value of the ctypes-private copy of the system :data:`errno`
    variable in the calling thread to *value* and return the previous value.
 
+   .. audit-event:: ctypes.set_errno errno ctypes.set_errno
 
 
 .. function:: set_last_error(value)
@@ -1973,6 +2001,7 @@ Utility functions
    :data:`LastError` variable in the calling thread to *value* and return the
    previous value.
 
+   .. audit-event:: ctypes.set_last_error error ctypes.set_last_error
 
 
 .. function:: sizeof(obj_or_type)
@@ -1987,6 +2016,8 @@ Utility functions
    object. If size is specified, it is used as size, otherwise the string is assumed
    to be zero-terminated.
 
+   .. audit-event:: ctypes.string_at address,size ctypes.string_at
+
 
 .. function:: WinError(code=None, descr=None)
 
@@ -2007,6 +2038,8 @@ Utility functions
    characters of the string, otherwise the string is assumed to be
    zero-terminated.
 
+   .. audit-event:: ctypes.wstring_at address,size ctypes.wstring_at
+
 
 .. _ctypes-data-types:
 
@@ -2034,6 +2067,7 @@ Data types
       source buffer in bytes; the default is zero.  If the source buffer is not
       large enough a :exc:`ValueError` is raised.
 
+      .. audit-event:: ctypes.cdata/buffer pointer,size,offset ctypes._CData.from_buffer
 
    .. method:: _CData.from_buffer_copy(source[, offset])
 
@@ -2043,6 +2077,8 @@ Data types
       is zero.  If the source buffer is not large enough a :exc:`ValueError` is
       raised.
 
+      .. audit-event:: ctypes.cdata/buffer pointer,size,offset ctypes._CData.from_buffer_copy
+
    .. method:: from_address(address)
 
       This method returns a ctypes type instance using the memory specified by