#!/usr/bin/env zsh

set -e

DST=${DST:-paster.example.com 2020}
[[ -s "$1" ]] && {
    src="$1"
    bn=$src:t
    e=${bn##*.}
    [[ $bn = $e ]] || ext="1:e${#e}:$e"
} || {
    src=`mktemp`
    trap "rm -f $src" HUP PIPE INT QUIT TERM EXIT
    cat > $src
    [[ $# -eq 0 ]] || ext="1:e${#1}:$1"
}
zmodload -F zsh/stat b:zstat
size=`zstat +size $src`

zmodload zsh/net/tcp
ztcp ${=DST}
fd=$REPLY
( print -n "d${ext}1:v${size}:" ; cat $src ; print -n e ) >&$fd
cat <&$fd
ztcp -c $fd