Why are the contents of a text file unprintable/unreadable?

General
1

Hello all,

I am sending a simple text file from a PC to a Raspberry Pi computer. The file lands there properly but when opened it is not the same as what I sent. It is just characters that are not even close to the same.

8p�#��#@6��`.o��5ڮz�H�#"!�E{����W�Y��e�V>�4J�#�#+s�=MK��ds�ga#��� R�Y�%0�N#Y3�O@#�S��a��$��#�7I###xl��g#�^D�G�+!�y��Л�
֚�#4���U!����Z#���"��F3���,Dz#F|Xk�0�#N�X#�3�6��+h# �y�W�����3#�"bՐ#�9#2#5�ł�8
�E#|/�#VRmЫ-�#�)[��#^
N3L�BA�L�a�1���xؒH�#�Du�
.4g��fr�rQQC[��g�T��#�#�c:f#�]�

Also the quantity of data is not present either (could be invisible if they are unprintable characters?)

Could the coding be off? If so how to I set it when sending, and set it again when receiving?

Thanks,
Tim

2

Well I figured out why it is unreadable, I was sending unencrypted data and then unencrypting it anyway, giving the bad results.

However, one thing I did find out is that when I try send encrypted data, the file never makes it to the destination. Can anyone shed some light as to why that would be?

Thanks,
Tim

3

How are you sending it? How are you detecting, at the receiving end, that you have received all the data and can close the connection, write the file, etc.

4

Does the data rely on a specific text encoding?

5

This might be an issue with the encoding of the text sent/received.

edit: oups… that was already suggested…

6

You could also explain what you mean by “encrypted”. So that’s several questions for you to answer.

7

Could it be that the data contains nulls? If you are stuffing the data into strings instead of memoryblocks, you could have problems.