mirror of
https://github.com/moparisthebest/socat
synced 2024-12-21 22:48:48 -05:00
72 lines
1.8 KiB
Bash
Executable File
72 lines
1.8 KiB
Bash
Executable File
#! /bin/sh
|
|
# source: mail.sh
|
|
# Copyright Gerhard Rieger 2001-2005
|
|
# Published under the GNU General Public License V.2, see file COPYING
|
|
|
|
#set -vx
|
|
|
|
# This is an example for a shell script that can be fed to socat with exec.
|
|
# Its clue is that it does not use stdin/stdout for communication with socat,
|
|
# so you may feed the mail message via stdin to the script. The message should
|
|
# contain appropriate mail headers.
|
|
# Lines with only a dot are not permitted - use two dots as escape.
|
|
# This script supports multiline answers from server, but not much more yet.
|
|
|
|
# Usage: cat message.txt |socat exec:"mail.sh target@domain.com",fdin=3,fdout=4 tcp:mail.relay.org:25,crlf
|
|
|
|
while [ "$1" ]; do
|
|
case "$1" in
|
|
-f) shift; mailfrom="$1"; shift;;
|
|
*) break;;
|
|
esac
|
|
done
|
|
|
|
rcptto="$1"
|
|
[ -z "$1" ] && rcptto="root@loopback"
|
|
#server=$(expr "$rcptto" : '[^@]*@\(.*\)')
|
|
[ -z "$mailfrom" ] && mailfrom="$USER@$(hostname)"
|
|
|
|
# this function waits for a complete server message, checks if its status
|
|
# is in the permitted range (terminates session if not), and returns.
|
|
mail_chat () {
|
|
local cmd="$1"
|
|
local errlevel="$2"; [ -z "$errlevel" ] && errlevel=300
|
|
|
|
if [ "$cmd" ]; then echo "> $cmd" >&2; fi
|
|
if [ -n "$cmd" ]; then echo "$cmd" >&4; fi
|
|
while read status message <&3;
|
|
(
|
|
case "$status" in
|
|
[0-9][0-9][0-9]-*) exit 0;;
|
|
[0-9][0-9][0-9]*) exit 1;;
|
|
*) exit 1;;
|
|
esac
|
|
)
|
|
do :; done
|
|
if [ -z "$status" ]; then echo smtp connection failed >&2; exit; fi
|
|
echo "< $status $message" >&2
|
|
if [ "$status" -ge "$errlevel" ]; then
|
|
echo $message >&2
|
|
echo "QUIT" >&4; exit 1
|
|
fi
|
|
}
|
|
|
|
|
|
# expect server greeting
|
|
mail_chat
|
|
|
|
mail_chat "HELO $(hostname)"
|
|
|
|
mail_chat "MAIL FROM: $mailfrom"
|
|
|
|
mail_chat "RCPT TO: $rcptto"
|
|
|
|
mail_chat "DATA" 400
|
|
|
|
while read l; do echo "$l" >&4; done
|
|
mail_chat "."
|
|
|
|
mail_chat "QUIT"
|
|
|
|
exit 0
|