#! /bin/sh
##
# fakesendmail - A fake sendmail program used by the nmh test suite
#                to test the sendmail/smtp and sendmail/pipe mts
#                methods.
#
# This code is Copyright (c) 2012, by the authors of nmh.  See the
# COPYRIGHT file in the root or documentation directory of the nmh
# distribution for complete copyright information.
##

if [ "$MH_TEST_DIR"x = x ]; then
  printf "$0 is intended for use only by the nmh test suite\n"
  exit 1
fi

#### Puts message on stdin in a drop that the test knows about.
deliver="${MH_LIB_DIR}/rcvpack ${MH_TEST_DIR}/Mail/fakesendmail.mbox"

found_dasht=0
for arg in "$@"; do
  [ "$arg" = -t ]  &&  found_dasht=1
done

if [ $found_dasht -eq 0 ]; then
  # sendmail/smtp
  msg=
  datamode=0

  printf "220 If it can't be done in Bourne shell it's not worth doing\n"
  while read line; do
    #### Strip off carriage returns, they confuse the pattern matching.
    line=`printf "$line" | tr -d '\r'`

    case "$line" in
      DATA) printf "354 do tell\n"; datamode=1 ;;
         .) printf "250 done\n"; datamode=0; printf "$msg" | $deliver; msg= ;;
      QUIT) printf "221 byenow\n"; break ;;
         *) [ $datamode -eq 1 ]  &&  msg="${msg}${line}
"  ||  printf "250 OK\n"
    esac
  done
else
  # sendmail/pipe

  #### This will delete any lines in the message body that start with Bcc:!
  sed -e '/^[Bb][Cc][Cc]:/d' | $deliver
fi