crc check of a file..

Ofloo · Post by **Ofloo** » Wed May 05, 2004 11:16 am

hmm how do i get a crc check of a file ??

Post by **user** » Wed May 05, 2004 11:47 am

http://tcllib.sourceforge.net/doc/crc32.html ?

Ofloo · Post by **Ofloo** » Thu May 06, 2004 4:26 pm

hmm ..

dollar · Post by **dollar** » Fri May 07, 2004 2:31 am

Ofloo wrote:hmm ..

What an interesting post...?

Ofloo · Post by **Ofloo** » Fri May 07, 2004 5:26 pm

well no i was looking for a different way sinds this scripts takes 10 seconds to resolve the crc of a 15mb file ..

stdragon · Post by **stdragon** » Fri May 07, 2004 8:46 pm

Why don't you read the file and use eggdrop's md5 command?

Ofloo · Post by **Ofloo** » Sat May 08, 2004 1:57 am

what do you mean ..? can u make a crc out of a md5 ..? but how do i get an md5 of a file ?? then ??

strikelight · Post by **strikelight** » Sat May 08, 2004 3:38 am

md5/sha are types of checksum algorithms (actually hash algorithms) which can be used instead of using crc checksum for whatever it is you are trying to do..

Doing this on a large file would probably take a bit longer as well via Tcl... However, most shell's provide the command "md5sum" which you can use to acquire the md5 checksum in a more timely manner.

Ofloo · Post by **Ofloo** » Sat May 08, 2004 11:39 am

i know but it must be crc i wrote a tcl script to check sfv files .. on an ftpd ..

and i know this can be done like this but now i am curious .. how u use the eggdrops [md5 <string>] cmd for this ??

strikelight · Post by **strikelight** » Sat May 08, 2004 1:58 pm

You would have to read in the entire contents of the file, and then perform the md5 function on it....

If you "need" to use checksum, then shell's also provide the command "cksum" ...

Ofloo · Post by **Ofloo** » Sun May 09, 2004 9:20 am

it does ??

you are talking about he default md5 cmd on eggdrop right ??

md5 <string>
Returns: the 128 bit MD5 message-digest of the specified string

Module: core

can't say i can see anything like it on there either we are talking about 2 different things or the docu is outdated

[15:21] <Ofloo> .tcl cksum
[15:21] <debug> Tcl error: invalid command name "cksum"

strikelight · Post by **strikelight** » Sun May 09, 2004 12:44 pm

I said the "shell" provides a cksum command... Not Tcl....

(ie: .tcl exec cksum eggdrop)

KrzychuG · Post by **KrzychuG** » Sun May 09, 2004 5:17 pm

md5 cmd in eggdrop created of MD5 message-digest of string, not an MD5 checksum of file!

strikelight · Post by **strikelight** » Sun May 09, 2004 6:06 pm

Which is why you'd read the contents of the file, and perform the operation on the contents.

Ofloo · Post by **Ofloo** » Mon May 10, 2004 9:49 pm

lmfao good point lol, hmm

tcl exec cksum eggdrop

the point of doing something in tcl is that it is entirely tcl no point using external programs well u can but then i wouldn't have to turn here :p and that would only be true on one operating system ..

i only use system programs if there is no otherway

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crc check of a file..

crc check of a file..

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