Re: [Exim] string overflowed buffer in pipe command

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Autor: Marilyn Davis
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A: exim-users
Assumpte: Re: [Exim] string overflowed buffer in pipe command
On Mon, 19 Jul 2004, Marilyn Davis wrote:

> Hello Exim Experts,
>
> I'm running a pipe transport and getting "**** string overflowed buffer ****". I've played with my command arguments for a few hours and haven't fixed anything yet.


I fixed some things in the program that command calls and now it all
works.

However, I still get the **** string overflowed buffer **** in the debug
output.

So I guess it was a red hering.

Something else I notice below (in case it helps anyone):

>
> Can anyone give me a hint about what buffer I'm overflowing?
>
> The transport is:
>
> doorman_transport:
> driver = pipe
> command = DOORMAN_HOME/scripts/doorman.py "TYPE" $reply_address "NAME" $h_subject: RECIPIENT_ID
> current_directory = DOORMAN_HOME
> home_directory = DOORMAN_HOME
> user = DOORMAN_UID
> group = DOORMAN_GID
>
>
> The debug output around there looks like:
>
> direct command after expansion:
> argv[0] = /b/local/doorman/scripts/doorman.py
> argv[1] = INSIDE-LIST
> argv[2] = send2md@???
> argv[3] = final@???


That argv[3] was the result of a fancy lookup. If I simply put the
final@??? in the argument list instead of the lookup, the
**** string buffer overflowed **** goes away.

That's not practical, of course, but maybe interesting to someone.

Marilyn Davis

>   argv[4] = test
>   argv[5] = 58
> Writing message to pipe
> condition: def:return_path
>    result: true
> expanding: $return_path
>    result: send2md@???
> expanding: MAILER-DAEMON
>    result: MAILER-DAEMON
> skipping: result is not used
> expanding: From ${if def:return_path{$return_path}{MAILER-DAEMON}} ${tod_bsdinbox}

>
>    result: From send2md@??? Mon Jul 19 16:07:39 2004

>
> writing data block fd=10 size=48 timeout=3600
> writing data block fd=10 size=290 timeout=3600
> writing data block fd=10 size=1 timeout=3600
> set_process_info: 10987 **** string overflowed buffer ****
> doorman_transport transport yielded 2
> search_tidyup called
> close MYSQL connection: localhost/maildance/root
> doorman_transport transport returned FAIL for final@???
> post-process final@??? (2)
> LOG: MAIN
> ** final@??? R=doorman T=doorman_transport: Child process of doorman_transport transport returned 1 from command: /b/local/doorman/scripts/doorman.py
> >>>>>>>>>>>>>>>> deliveries are done >>>>>>>>>>>>>>>>
>
>
> I don't think my program is running at all because there is nothing in its log.
>
> Any hints will be very much appreciated.
>
> I'm running 4.40 but had the same trouble on 4.34
>
> Thank you,
>
> Marilyn Davis
>
>
>
> --
>
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>
>


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