Re: Help: Transfer file error using FTPAPI

[Scott Klement <sk@xxxxxxxxxxxxxxxx>]

Hi Martina,

FTP does not send the file's description, it only sends the data. There 
is nothing in the data that tells how big the records should be.  FTP 
merely sends a constant "stream" of data, and it's up to the receiver 
(in your scenario, that's presumably FTPAPI) to break the stream into 
records.

Since there's no "for certain" way to determine the length,  when I was 
writing FTPAPI, I was faced with two choices:

1) I could receive the entire file into a stream file in the IFS, then 
read the entire file looking for the largest record, then create 
physical file with that record length (if the record length falls within 
valid record length range) and copy all of the data from the stream file 
to the physical file.  This would require additional disk resources, and 
for large files could significantly increase the time of the transfer.

-or-

2) Simply pick a record length and save the data into it.  And if that 
length was not correct, let the caller controlling FTPAPI specify a 
different one.


I chose the 2nd method, and chose to always use a record length of 1024 
bytes.

If you have a better record length, simply pre-create an empty physical 
file with the proper length, and FTPAPI will use the length you selected.




On 7/1/2012 6:37 AM, Martina Carolina Alagna wrote:
>     I use the get FTPAPI to transfer files from pc to as400; everything
>     goes fine besides for the file record length: I get a file record
>     length smaller on the AS400  than the original length on the PC.
>
>
>     The record length on the PC is 1639 bytes, on the AS400 the GET
>     transfers only 1024 bytes.
>
>
>     What should I do to transfer the whole 1639 bytes record length ???
>
>
>     Thanks.
>
>
>
>     Cordialmente
>
>     ______________________________________________
>
>     Martina Alagna
>
>     ArtMatica Italia srl
>
>     zend-solution-partner-S
>
>     uff.  06.4060.667
>
>     cell. 348-0341087 e-mail [1]m.alagna@xxxxxxxxxxxx
>
>     [2]http://www.artmatica.it
>
>     P "Rispetta il tuo ambiente, pensa prima di stampare questa e-mail"
>     " Please consider your environmental responsibility before printing
>     this e-mail
>
> References
>
>     1. mailto:b.virzi@xxxxxxxxxxxx
>     2. http://www.artmatica.it/
>
>
>
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