SCGP (Starcraft Game Protocol) Spec

[bulletproof tiger]

SCTV Proxy
(similar to HLTV)

Is it possible?

Well, I know of a certain SCRGTD.

What about G4TV?

[xpeh]

Wat's that?

No, i'm not talking about video broadcasting.

It's just a proxy, that act's like a spectator (observer) for the server and like a server for clients watching game.

http://www.slipgate.de/download/HLTV-Readme.txt

[brew]

Well why didn't you say so? We couldn't guess what HLTV is. To me, it was nothing but a seemingly random acronym. I think you need to explicate yourself a little better next time.

Yes, this is possible. Ringo's made something like that once. Perhaps you should use the forum search function to find the associated thread...

[xpeh]

I thought anyone knows what HLTV is Except he is fixed on bnet

What should i search for? Can you probably give me a link? "something like that" - i wonder what is it.

[l2k-Shadow]

i think ashur from bwprogrammers attempted something like this as well but gave up on the project. It was called BWTV. www.bwprogrammers.com is no longer active, but google should come up with some leads.

[xpeh]

What i want to do is slightly different. I want to operate only with network traffic, so it's no need of downloading any client software, and frees me from anal slavery of memory patchers, dying with every new SC patch.

Those who are familiar with SC game protocol, Ringo, how you think, is it possible?

[l2k-Shadow]

make the tv program join a game, in turn it transmits all the packets from that game into your custom bnet server. clients who wanna watch login to that server and then they can choose which game to ob, then the tv program will just relay all packets from the game its observing into the game your client is in. like a big middle man. that could work i believe.

[bulletproof tiger]

Perhaps the person could just join the game, ally both parties and watch?!!!!??!

[xpeh]

make the tv program join a game, in turn it transmits all the packets from that game into your custom bnet server. clients who wanna watch login to that server and then they can choose which game to ob, then the tv program will just relay all packets from the game its observing into the game your client is in. like a big middle man. that could work i believe.

I mean this. But there is no need for another server. Just create another game.

"Relay it's packets" - not really correct. I can't just relay all packet, generally it's right, but i need to handle some packets + some situations like client lags without affecting others (main sense of the idea).

[xpeh]

Perhaps the person could just join the game, ally both parties and watch?!!!!??!

1. How many persons could watch the game?
2. What if one of obses lags and you even don't know who? Or he just don't have lan latency on Iccup?
3. What if one of observers annoys in some kind?

If you have something like HLTV with one-way traffic, you can allow other to spectate without any sorrow (except you have very limited upload bandwidth or pay much for traffic ).

These reasons are so obvious that i wonder that you asked that.

[xpeh]

bump

[Ringo]

Somone was asking for this function, So I thought I would post it here.
Its used for command 0x01, packet 0x4F, event 0x01.
It generates the checksum of the map, for verifying it's the correct version of the map etc.

VB6:

Code Select Expand


Private dword_50D2B0(255)   As Long

Private Sub Form_Load()
    Call FillArray(dword_50D2B0(), _
                   &H0, &H77073096, &HEE0E612C, &H990951BA, &H76DC419, &H706AF48F, &HE963A535, &H9E6495A3, &HEDB8832, &H79DCB8A4, &HE0D5E91E, &H97D2D988, &H9B64C2B, &H7EB17CBD, &HE7B82D07, &H90BF1D91, &H1DB71064, &H6AB020F2, &HF3B97148, &H84BE41DE, &H1ADAD47D, &H6DDDE4EB, &HF4D4B551, &H83D385C7, &H136C9856, &H646BA8C0, &HFD62F97A, &H8A65C9EC, &H14015C4F, &H63066CD9, &HFA0F3D63, &H8D080DF5, &H3B6E20C8, &H4C69105E, &HD56041E4, &HA2677172, &H3C03E4D1, &H4B04D447, &HD20D85FD, &HA50AB56B, &H35B5A8FA, &H42B2986C, &HDBBBC9D6, &HACBCF940, &H32D86CE3, &H45DF5C75, &HDCD60DCF, &HABD13D59, &H26D930AC, &H51DE003A, &HC8D75180, &HBFD06116, &H21B4F4B5, &H56B3C423, &HCFBA9599, &HB8BDA50F, &H2802B89E, &H5F058808, &HC60CD9B2, &HB10BE924, &H2F6F7C87, &H58684C11, &HC1611DAB, &HB6662D3D, &H76DC4190, &H1DB7106, &H98D220BC, &HEFD5102A, &H71B18589, &H6B6B51F, &H9FBFE4A5, &HE8B8D433, &H7807C9A2, &HF00F934, &H9609A88E, &HE10E9818, &H7F6A0DBB, &H86D3D2D, _
                   &H91646C97, &HE6635C01, &H6B6B51F4, &H1C6C6162, &H856530D8, &HF262004E, &H6C0695ED, &H1B01A57B, &H8208F4C1, &HF50FC457, &H65B0D9C6, &H12B7E950, &H8BBEB8EA, &HFCB9887C, &H62DD1DDF, &H15DA2D49, &H8CD37CF3, &HFBD44C65, &H4DB26158, &H3AB551CE, &HA3BC0074, &HD4BB30E2, &H4ADFA541, &H3DD895D7, &HA4D1C46D, &HD3D6F4FB, &H4369E96A, &H346ED9FC, &HAD678846, &HDA60B8D0, &H44042D73, &H33031DE5, &HAA0A4C5F, &HDD0D7CC9, &H5005713C, &H270241AA, &HBE0B1010, &HC90C2086, &H5768B525, &H206F85B3, &HB966D409, &HCE61E49F, &H5EDEF90E, &H29D9C998, &HB0D09822, &HC7D7A8B4, &H59B33D17, &H2EB40D81, &HB7BD5C3B, &HC0BA6CAD, &HEDB88320, &H9ABFB3B6, &H3B6E20C, &H74B1D29A, &HEAD54739, &H9DD277AF, &H4DB2615, &H73DC1683, &HE3630B12, &H94643B84, &HD6D6A3E, &H7A6A5AA8, &HE40ECF0B, &H9309FF9D, &HA00AE27, &H7D079EB1, &HF00F9344, &H8708A3D2, &H1E01F268, &H6906C2FE, &HF762575D, &H806567CB, &H196C3671, &H6E6B06E7, &HFED41B76, &H89D32BE0, &H10DA7A5A, _
                   &H67DD4ACC, &HF9B9DF6F, &H8EBEEFF9, &H17B7BE43, &H60B08ED5, &HD6D6A3E8, &HA1D1937E, &H38D8C2C4, &H4FDFF252, &HD1BB67F1, &HA6BC5767, &H3FB506DD, &H48B2364B, &HD80D2BDA, &HAF0A1B4C, &H36034AF6, &H41047A60, &HDF60EFC3, &HA867DF55, &H316E8EEF, &H4669BE79, &HCB61B38C, &HBC66831A, &H256FD2A0, &H5268E236, &HCC0C7795, &HBB0B4703, &H220216B9, &H5505262F, &HC5BA3BBE, &HB2BD0B28, &H2BB45A92, &H5CB36A04, &HC2D7FFA7, &HB5D0CF31, &H2CD99E8B, &H5BDEAE1D, &H9B64C2B0, &HEC63F226, &H756AA39C, &H26D930A, &H9C0906A9, &HEB0E363F, &H72076785, &H5005713, &H95BF4A82, &HE2B87A14, &H7BB12BAE, &HCB61B38, &H92D28E9B, &HE5D5BE0D, &H7CDCEFB7, &HBDBDF21, &H86D3D2D4, &HF1D4E242, &H68DDB3F8, &H1FDA836E, &H81BE16CD, &HF6B9265B, &H6FB077E1, &H18B74777, &H88085AE6, &HFF0F6A70, &H66063BCA, &H11010B5C, &H8F659EFF, &HF862AE69, &H616BFFD3, &H166CCF45, &HA00AE278, &HD70DD2EE, &H4E048354, &H3903B3C2, &HA7672661, &HD06016F7, &H4969474D, &H3E6E77DB, _
                   &HAED16A4A, &HD9D65ADC, &H40DF0B66, &H37D83BF0, &HA9BCAE53, &HDEBB9EC5, &H47B2CF7F, &H30B5FFE9, &HBDBDF21C, &HCABAC28A, &H53B39330, &H24B4A3A6, &HBAD03605, &HCDD70693, &H54DE5729, &H23D967BF, &HB3667A2E, &HC4614AB8, &H5D681B02, &H2A6F2B94, &HB40BBE37, &HC30C8EA1, &H5A05DF1B, &H2D02EF8D)
End Sub

Private Sub FillArray(ByRef varArray() As Long, ParamArray varValue() As Variant)
    Dim i       As Long
    For i = 0 To UBound(varValue)
        varArray(i) = varValue(i)
    Next i
End Sub
Private Function sub_410430(B() As Byte, Lengh As Long, Seed As Long) As Long
    Dim i       As Long
    Dim R       As Long
    R = Seed
    For i = 0 To (Lengh - 1)
        If (R And &H80000000) Then
            R = ((((R And &H7FFFFFFF) \ 256) Or &H800000) Xor dword_50D2B0((R Xor B(i)) And &HFF))
        Else
            R = ((R \ 256) Xor dword_50D2B0((R Xor B(i)) And &HFF))
        End If
    Next i
    sub_410430 = R
End Function



C:

Code Select Expand


__int32 dword_50D2B0[] = {0x0, 0x77073096, 0xEE0E612C, 0x990951BA, 0x76DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, 0xEDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x9B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x1DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x6B6B51F, 0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0xF00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x86D3D2D,
                   0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x3B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x4DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84, 0xD6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0xA00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A,
                   0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x26D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x5005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0xCB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0xBDBDF21, 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
   0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D};




__int32 __stdcall sub_410430(__int32 buffer, __int32 *len, __int32 *seed)
{
  __int32 r = *seed;
  __int32 a = *len;
  if ( a )
  {
    do
    {
      r = ((unsigned __int32)r >> 8) ^ dword_50D2B0[(unsigned __int8)(r ^ *(__int8 *)buffer++)];
    }
    while ( --a );
  }
  return r;
}


I'm abit drunk, so code is about sloppy :p

I used this map are a test map@
\old ladder\(8)Green Valleys.scm
Checksum = 0x2A779E9E

You just dump the raw file data into the function, and it returns the checksum.
ie;
sub_410430(filebuffer, lengh, 0xFFFFFFFF)

[xpeh]

Maybe it's some modification of CRC32? Can you check this out?

[xpeh]

What is seed?

Is it the same checksum that client sends to server in statstring?

[islanti]

Somone was asking for this function, So I thought I would post it here.
Its used for command 0x01, packet 0x4F, event 0x01.
It generates the checksum of the map, for verifying it's the correct version of the map etc.

I'm abit drunk, so code is about sloppy :p

I used this map are a test map@
\old ladder\(8)Green Valleys.scm
Checksum = 0x2A779E9E

You just dump the raw file data into the function, and it returns the checksum.
ie;
sub_410430(filebuffer, lengh, 0xFFFFFFFF)

That looks awfully like CRC32...