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import sys
from _pypy_openssl import ffi
from _pypy_openssl import lib
def _string_from_asn1(asn1):
data = lib.ASN1_STRING_data(asn1)
length = lib.ASN1_STRING_length(asn1)
return _str_with_len(ffi.cast("char*",data), length)
def _str_with_len(char_ptr, length):
return ffi.buffer(char_ptr, length)[:].decode('utf-8')
def _bytes_with_len(char_ptr, length):
return ffi.buffer(char_ptr, length)[:]
def _str_to_ffi_buffer(view):
if isinstance(view, str):
return ffi.from_buffer(view.encode())
elif isinstance(view, memoryview):
# NOTE pypy limitation StringBuffer does not allow
# to get a raw address to the string!
view = bytes(view)
# dont call call ffi.from_buffer(bytes(view)), arguments
# like ints/bools should result in a TypeError
return ffi.from_buffer(view)
def _str_from_buf(buf):
return ffi.string(buf).decode('utf-8')
def _cstr_decode_fs(buf):
if buf == ffi.NULL:
return None
return ffi.string(buf).decode(sys.getfilesystemencoding())
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