Hi Jens, You complan about the 2048 Bytes sounds realy weird, because base64 encoded attachment should not have (-> please read the RFC's) more then 72 Bytes per line.
If you modify the source code you schould know, that some MTA's can
reject such messages do to a violation of the RFC's. courier-mta reject
by default or convert the faulty mail to an attachment which the is send
to the originating recipient depending on its configuration.
Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant
Am 2009-05-20 07:12:21, schrieb Jens-Dietrich Möller:
> Package: ssmtp
> Version: 2.62-1
> Severity: normal
> Tags: patch
> X-Debbugs-CC: jensdietrich.moel...@auerswald.de
>
> Hello *,
>
> I am using ssmtp to send emails from an embedded system. So I grabbed that
> ssmtp_2.62.orig.tar.gz from your debian package server and compiled it on my
> own. What I do with it is to send emails containing attachements of several
> megabytes. Well, I already found at least one problem:
>
> If the base64 encoded attachement data is NOT split into lines of less than
> 2048 characters, the buffer-handling in ssmtp looses data.
>
> So I applied the following patch:
>
> diff -u -r -N ssmtp/ssmtp.c ssmtp-neu/ssmtp.c
> --- ssmtp/ssmtp.c 2008-03-06 21:01:22.000000000 +0100
> +++ ssmtp-neu/ssmtp.c 2009-05-19 14:01:17.000000000 +0200
>
> */
> ssize_t smtp_write(int fd, char *format, ...)
> {
> - char buf[(BUF_SZ + 1)];
> + char buf[(BUF_SZ + 3)];
> va_list ap;
> ssize_t outbytes = 0;
>
> va_start(ap, format);
> - if(vsnprintf(buf, (BUF_SZ - 2), format, ap) == -1) {
> + if(vsnprintf(buf, (BUF_SZ + 1), format, ap) == -1) {
> die("smtp_write() -- vsnprintf() failed");
> }
> va_end(ap);
>
>
> With this, I do not need to split the attachement into small lines and slow
> down the transmission. BTW: Do you know the original author of this code?
> Whom do I have to contact for code contribution?
>
> Thanks so far,
>
> Jens Möller
>
> To: ani...@debian.org
> santi...@debian.org
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