yEnc decoder

[Marvin Grill]

Hi, I'm working on a type of NewsHound program and am stuck on how to
decode the yEnc encoded articles (body).

I tried using Joe Feser's yEnc class but can't seem to get it to work
properly
Not sure whether it's an Encoding.Type problem or not getting the
stream start position right.

In any case here's part of the code with the problem:

_______________ _______________ _______________ _______________ _____
Article = 21971499;
nntp1.Send("BOD Y " + Article.ToStrin g() + "\r\n");
// this line reads stream till line with period only
s = nntp1.Receive(" .\r\n");
Stream inMemStream, outMemStream;
inMemStream= new MemoryStream(En coding.UTF8.Get Bytes(s));
outMemStream= new MemoryStream();
inMemStream.See k(0, 0);
yenc.DecodeFrom RawStream(inMem Stream, outMemStream);
outMemStream.Se ek(0, 0);

StreamReader sr = new StreamReader(ou tMemStream, Encoding.UTF8);
string ArticleAttachme nt = sr.ReadToEnd();
_______________ _______________ _______________ _______________ __________

The problem is that the decoded string has only the upper case letters
right but the lower case letters are spaces.
If any one knows of any other components out there that can decode
yEnc please let me know.

Thanks
Marv

[Armin Zingler]

"Marvin Grill" <ma*********@ho tmail.com> schrieb

...

You know that you've also posted to the VB.NET group?
--
Armin

http://www.plig.net/nnq/nquote.html
http://www.netmeister.org/news/learn2quote.html

[Marvin Grill]

"Armin Zingler" <az*******@free net.de> wrote in message news:<eP******* *******@TK2MSFT NGP09.phx.gbl>. ..

"Marvin Grill" <ma*********@ho tmail.com> schrieb

...

You know that you've also posted to the VB.NET group?

Yes Armin I realized that but I have a two-fold question. The second
part is asking for information on ANY components known that could do
yEnc decoding --- which can be written in either C# or VB

But thanks for your constructive criticism even though it did not help
with my question in any way what so ever.

Regards
Marvin Grill

[Daniel O'Connell]

If my memory serves right, this code should work(I wrote it a long time ago
and I don't know for sure if it was 100% working, I know it was working with
the test files):
byte[] yEncDecodeBlock (byte[] Block)
{
byte x;
byte[] O = new byte[Block.Length];
byte[] Out;
int count = 0;
for (int i=0;i < Block.Length; i++)
{
x = Block[i];
if (x=='\r')
{

i++;
if (Block[i] == '\n')
{
continue;
}
else
{
throw new yEncInvalidForm atException("Th ere was a carriage return
without a linefeed detected");
}
}
else if (x=='=')
{
i++;
byte r = x;
x = Block[i];
O[count] = (byte)(x-64-42);
}
else
{
O[count] = (byte)(x-42);
}
count++;
}
if (count != 0)
{
Out = new byte[count];
Buffer.BlockCop y(O,0,Out,0,cou nt);
return Out;
}
return null;
}
"Marvin Grill" <ma*********@ho tmail.com> wrote in message
news:f0******** *************** ***@posting.goo gle.com...

Hi, I'm working on a type of NewsHound program and am stuck on how to
decode the yEnc encoded articles (body).

I tried using Joe Feser's yEnc class but can't seem to get it to work
properly
Not sure whether it's an Encoding.Type problem or not getting the
stream start position right.

In any case here's part of the code with the problem:

_______________ _______________ _______________ _______________ _____
Article = 21971499;
nntp1.Send("BOD Y " + Article.ToStrin g() + "\r\n");
// this line reads stream till line with period only
s = nntp1.Receive(" .\r\n");
Stream inMemStream, outMemStream;
inMemStream= new MemoryStream(En coding.UTF8.Get Bytes(s));
outMemStream= new MemoryStream();
inMemStream.See k(0, 0);
yenc.DecodeFrom RawStream(inMem Stream, outMemStream);
outMemStream.Se ek(0, 0);

StreamReader sr = new StreamReader(ou tMemStream, Encoding.UTF8);
string ArticleAttachme nt = sr.ReadToEnd();
_______________ _______________ _______________ _______________ __________

The problem is that the decoded string has only the upper case letters
right but the lower case letters are spaces.
If any one knows of any other components out there that can decode
yEnc please let me know.

Thanks
Marv

[Marvin Grill]

Daniel thanks very much for your reply. You are the first person to
add anything intelligent to this thread so far. You are a gentleman.
I'll give it a try and post a reply for others to benefit.

Marv

"Daniel O'Connell" <[e-mail]> wrote in message news:<OA******* ******@TK2MSFTN GP11.phx.gbl>.. .

If my memory serves right, this code should work(I wrote it a long time ago
and I don't know for sure if it was 100% working, I know it was working with
the test files):
byte[] yEncDecodeBlock (byte[] Block)
{
byte x;
byte[] O = new byte[Block.Length];
byte[] Out;
int count = 0;
for (int i=0;i < Block.Length; i++)
{
x = Block[i];
if (x=='\r')
{

i++;
if (Block[i] == '\n')
{
continue;
}
else
{
throw new yEncInvalidForm atException("Th ere was a carriage return
without a linefeed detected");
}
}
else if (x=='=')
{
i++;
byte r = x;
x = Block[i];
O[count] = (byte)(x-64-42);
}
else
{
O[count] = (byte)(x-42);
}
count++;
}
if (count != 0)
{
Out = new byte[count];
Buffer.BlockCop y(O,0,Out,0,cou nt);
return Out;
}
return null;
}
"Marvin Grill" <ma*********@ho tmail.com> wrote in message
news:f0******** *************** ***@posting.goo gle.com...

Hi, I'm working on a type of NewsHound program and am stuck on how to
decode the yEnc encoded articles (body).

I tried using Joe Feser's yEnc class but can't seem to get it to work
properly
Not sure whether it's an Encoding.Type problem or not getting the
stream start position right.

In any case here's part of the code with the problem:

_______________ _______________ _______________ _______________ _____
Article = 21971499;
nntp1.Send("BOD Y " + Article.ToStrin g() + "\r\n");
// this line reads stream till line with period only
s = nntp1.Receive(" .\r\n");
Stream inMemStream, outMemStream;
inMemStream= new MemoryStream(En coding.UTF8.Get Bytes(s));
outMemStream= new MemoryStream();
inMemStream.See k(0, 0);
yenc.DecodeFrom RawStream(inMem Stream, outMemStream);
outMemStream.Se ek(0, 0);

StreamReader sr = new StreamReader(ou tMemStream, Encoding.UTF8);
string ArticleAttachme nt = sr.ReadToEnd();
_______________ _______________ _______________ _______________ __________

The problem is that the decoded string has only the upper case letters
right but the lower case letters are spaces.
If any one knows of any other components out there that can decode
yEnc please let me know.

Thanks
Marv

[Daniel O'Connell]

Heh, np, hopefully it still works.
However, you should probably avoid posting so broadly, the general group
would probably have sufficed.
Also, you may want to obfusticate your email addy, there are a few nasty
scanners that will spam you with virii, etc using email addresses hulled
from these groups.
"Marvin Grill" <ma*********@ho tmail.com> wrote in message
news:f0******** *************** ***@posting.goo gle.com...

Daniel thanks very much for your reply. You are the first person to
add anything intelligent to this thread so far. You are a gentleman.
I'll give it a try and post a reply for others to benefit.

Marv

"Daniel O'Connell" <[e-mail]> wrote in message

news:<OA******* ******@TK2MSFTN GP11.phx.gbl>.. .

If my memory serves right, this code should work(I wrote it a long time ago and I don't know for sure if it was 100% working, I know it was working with the test files):
byte[] yEncDecodeBlock (byte[] Block)
{
byte x;
byte[] O = new byte[Block.Length];
byte[] Out;
int count = 0;
for (int i=0;i < Block.Length; i++)
{
x = Block[i];
if (x=='\r')
{

i++;
if (Block[i] == '\n')
{
continue;
}
else
{
throw new yEncInvalidForm atException("Th ere was a carriage return
without a linefeed detected");
}
}
else if (x=='=')
{
i++;
byte r = x;
x = Block[i];
O[count] = (byte)(x-64-42);
}
else
{
O[count] = (byte)(x-42);
}
count++;
}
if (count != 0)
{
Out = new byte[count];
Buffer.BlockCop y(O,0,Out,0,cou nt);
return Out;
}
return null;
}
"Marvin Grill" <ma*********@ho tmail.com> wrote in message
news:f0******** *************** ***@posting.goo gle.com...

Hi, I'm working on a type of NewsHound program and am stuck on how to
decode the yEnc encoded articles (body).

I tried using Joe Feser's yEnc class but can't seem to get it to work
properly
Not sure whether it's an Encoding.Type problem or not getting the
stream start position right.

In any case here's part of the code with the problem:

_______________ _______________ _______________ _______________ _____
Article = 21971499;
nntp1.Send("BOD Y " + Article.ToStrin g() + "\r\n");
// this line reads stream till line with period only
s = nntp1.Receive(" .\r\n");
Stream inMemStream, outMemStream;
inMemStream= new MemoryStream(En coding.UTF8.Get Bytes(s));
outMemStream= new MemoryStream();
inMemStream.See k(0, 0);
yenc.DecodeFrom RawStream(inMem Stream, outMemStream);
outMemStream.Se ek(0, 0);

StreamReader sr = new StreamReader(ou tMemStream, Encoding.UTF8);
string ArticleAttachme nt = sr.ReadToEnd();
_______________ _______________ _______________ _______________ __________

The problem is that the decoded string has only the upper case letters
right but the lower case letters are spaces.
If any one knows of any other components out there that can decode
yEnc please let me know.

Thanks
Marv