Re: prob with struct and byte order

ok. here is how i got a message in the first place. The data server developers released this one windows app that simulates a real app. In that it logs into the server and sends and receives commands. instead of putting in the data servers ip though, i put in the ip address of the linux box i am bu

Re: prob with struct and byte order

Marc 'BlackJack' Rintsch wrote: > In <[EMAIL PROTECTED]>, nephish wrote: > > > tohex gave me > > '53 54 58 > >S T X > > > 00 00 00 34 > > Length!? Decimal 57. 3 * 16 + 4 -> 52 where I come from -- assuming hex means hexadecimal and not witchcraft :-) > > > 00 00 00 c8 > > Type!? Decimal 2

Re: prob with struct and byte order

In <[EMAIL PROTECTED]>, nephish wrote: > tohex gave me > '53 54 58 S T X > 00 00 00 34 Length!? Decimal 57. > 00 00 00 c8 Type!? Decimal 200. > 70 69 76 6f 74 72 61 63 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 74 72 61 63 31 70 69 76 6f 74 00 00 00 00 00 00 00 00 00 00 00 00

Re: prob with struct and byte order

[EMAIL PROTECTED] wrote: > ok. indeed i did do '' instead of ' '. > here is an example of a message > 'STX\x00\x00\x004\x00\x00\x00\xc8stateman\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00state1man\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00ENX' > > tohex gave me '53

Re: prob with struct and byte order

ok. indeed i did do '' instead of ' '. here is an example of a message 'STX\x00\x00\x004\x00\x00\x00\xc8stateman\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00state1man\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00ENX' tohex gave me '53 54 58 00 00 00 34 00 00 00 c8 70 6

Re: prob with struct and byte order

Grant Edwards wrote: > On 2006-07-24, Steve Holden <[EMAIL PROTECTED]> wrote: > > [EMAIL PROTECTED] wrote: > > > >> now the 17758 is significant because it is the actual unit number of > >> the machine we want to monitor. I just dont know how to extract the > >> real values out of this message. >

Re: prob with struct and byte order

[EMAIL PROTECTED] wrote: > the starting and ending deliminators are ASCII 'STX' and 'ENX'. i > wondered why they did it like that also. But they did. > > the message length is a 4 byte integer indicating how long the message > body is. > the message type is also 4 bytes. There is a table in the d

Re: prob with struct and byte order

On 2006-07-24, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > ok, i did this print ' '.join(["%02.2x" % ord(b) for b in message]) > and i got this in the text file > 535458002c00ea31373538343636383535d6090d54454e58 No, I don't think so.

Re: prob with struct and byte order

ok, i did this print ' '.join(["%02.2x" % ord(b) for b in message]) and i got this in the text file 535458002c00ea31373538343636383535d6090d54454e58 so, yes, more of the info seems discernable now. according to their docs, all of their va

Re: prob with struct and byte order

On 2006-07-24, Steve Holden <[EMAIL PROTECTED]> wrote: > [EMAIL PROTECTED] wrote: >> hello there, all. >> >> i have a difficult app that connects to a server to get information for >> our database here. >> this server is our access point to some equipment in the field that we >> monitor. >> >> th

Re: prob with struct and byte order

[EMAIL PROTECTED] wrote: > hello there, all. > > i have a difficult app that connects to a server to get information for > our database here. > this server is our access point to some equipment in the field that we > monitor. > > the messages come in over a socket connection. And according to the

prob with struct and byte order

hello there, all. i have a difficult app that connects to a server to get information for our database here. this server is our access point to some equipment in the field that we monitor. the messages come in over a socket connection. And according to their (very limited) documentation, are set