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Nico Golde openbsc at ngolde.deHi, * Holger Hans Peter Freyther <holger at freyther.de> [2010-07-20 13:03]: > On 07/20/2010 05:05 AM, Nico Golde wrote: > > I just looked into this and if I'm not mistaken this is no > > bug in the encoding but just a bug when comparing the > > encoded result. The current code memcmp's n bytes where n is > > the result of gsm_7bit_encode() with the input string > > bytewise. The problem with this is that the function returns > > the number of septets not octets. Attached is a patch for > > the test code that should fix this. > > I don't think using strlen is correct. The gsm_7bit_encode > method makes no promise that the result will have a null > byte at the end, in fact nothing in this method will add a > null byte, and the null byte in the output is only present > because of memset in the calling method. Yeah, realized this after writing, hence the second reply. > I think gsm_7bit_encode should return the length of bytes > it has written to, not more. :) Yes and I think this is part of the problem. Currently the function returns i instead of z while z is the counter for the bytes actually written and i the number of encoded septets. I will probably look into this at the weekend. Cheers Nico