https://bugs.exim.org/show_bug.cgi?id=3037
--- Comment #4 from Zakaria <hi@???> ---
Oh, more points, I think they could be helpful for anyone else who wants to
find resolve to this issue.
As Jeremy suggested, running cat in transport filter like the following:-
transport_filter = /bin/bash -c '/bin/cat'
renders no point for me of using transport filter since it doesn't modify nor
offer me any ability to filter anything, and yet it works fine and the broken
pipe issue doesn't happen but if I run it from inside bash script with certain
or identical email content, it throws broken pipe error.
Lastly, it seems EXIM takes limited segment from the cat or echo content or
it's not just the first call to cat if it was outputted from bash script since
I tested calling cat only once for concatenated content, and anyways ends with
throwing broken pipe? other ways to mitigate this?
Also, in case anyone wants to review my bash script, this is it's content, and
not sure if I can run it from inside EXIM configuration file directly given I
use several commands and all are being executed when ran from bash as I tested
if it reaches exit 0.
#!/bin/sh
msgid=$1
bpath=$(/usr/bin/find /var/spool/exim/input -name "*$msgid*-D")
hpath=$(/usr/bin/find /var/spool/exim/input -name "*$msgid*-H")
result=$(/usr/prependpng.sh "$bpath" "$hpath")
if [[ $result != "isntchunked" ]]; then
END=$result
for ((i=1;i<=END;i++)); do
cat "${bpath}-modified${i}"
cat "${bpath}-modified${i}" >> /etc/exim/prependtest
rm -f "${bpath}-modified${i}"
done
else
cat ${bpath}-modified
#cat "${bpath}-modified" > /etc/exim/prependtest
rm -f "${bpath}-modified"
fi
exit 0
Looking forward, with thanks.
Zakaria.
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