diff options
Diffstat (limited to 'src/OpenSSL/SSL.py')
| -rw-r--r-- | src/OpenSSL/SSL.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/OpenSSL/SSL.py b/src/OpenSSL/SSL.py index d4158d4..8bbde5b 100644 --- a/src/OpenSSL/SSL.py +++ b/src/OpenSSL/SSL.py @@ -1455,6 +1455,8 @@ class Connection(object): buf = str(buf) if not isinstance(buf, bytes): raise TypeError("data must be a memoryview, buffer or byte string") + if len(buf) > 2147483647: + raise ValueError("Cannot send more than 2**31-1 bytes at once.") result = _lib.SSL_write(self._ssl, buf, len(buf)) self._raise_ssl_error(self._ssl, result) @@ -1486,7 +1488,13 @@ class Connection(object): data = _ffi.new("char[]", buf) while left_to_send: - result = _lib.SSL_write(self._ssl, data + total_sent, left_to_send) + # SSL_write's num arg is an int, + # so we cannot send more than 2**31-1 bytes at once. + result = _lib.SSL_write( + self._ssl, + data + total_sent, + min(left_to_send, 2147483647) + ) self._raise_ssl_error(self._ssl, result) total_sent += result left_to_send -= result |