# complete copyright information.
#
# Emulation of compiled mhmail(1), with these differences:
-# * Instead of silently not sending an empty message, notifies user
-# "mhmail: empty message not sent, use -body '' to force."
-# * The compiled mhmail dropped a trailing newline from the -body argument.
+# * Adds -send/-nosend, -headerfield, and -attach options.
+# * Adds optional -to switch for recipient addresses.
# * Supports all post(8) (by default, without -profile) or send(1)
# (with -profile) options.
# * Optionally (with -profile) obeys the users profile, including
# AliasFile and send entries.
-# * Adds -nosend option, which displays the draft but does not send it.
+# * Instead of silently not sending an empty message, notifies user
+# "mhmail: empty message not sent, use -body '' to force."
+# * The compiled mhmail dropped a trailing newline from the -body argument.
# * Drops support for undocumented -queue option.
-#
-# To do:
-# * fix -resent with -profile
-# * add -header-field name:body switch
-# * add -attach file ... switch
-usage='Usage: mhmail [addrs ... [switches]]
+usage='Usage: mhmail [-t(o)] addrs ... [switches]
switches are:
+ -at(tach) file [-at(tach) file] ...
-b(ody) text
-c(c) addrs ...
-f(rom) addr
+ -hea(derfield) name:value [-hea(derfield) name:value] ...
-su(bject) text
-r(esent)
-pr(ofile)
-se(nd)
-nose(nd)
-v(ersion)
- -h(elp)
- and all post(8)/send(1) switches'
+ -hel(p)
+ and all post(8)/send(1) switches
+ mhmail with no arguments is equivalent to inc'
+
-bindir=`dirname $0`
+#### Find directory of this script. Bourne shell just puts the program
+#### name in $0 if it's found from the PATH, so search that if necessary.
+finddir() {
+ case $0 in
+ */*) dirname $1 ;;
+ * ) IFS=:
+ for d in $PATH; do
+ [ -f "${d:=.}/$1" -a -x "$d/$1" ] && printf "$d" && break
+ done ;;
+ esac
+}
+
+bindir=`finddir $0`
nmhbindir=`cd "${bindir}" && pwd`
+
+#### Checks for missing mandatory arguments.
+checkforargs() {
+ if [ ${attacharg} -eq 1 ]; then
+ printf "mhmail: missing argument to -attach\n"; exit 1
+ elif [ ${bodyarg} -eq 1 ]; then
+ printf "mhmail: missing argument to -body\n"; exit 1
+ elif [ ${ccarg} -eq 1 -a "${cclist}"x = x ]; then
+ printf "mhmail: missing argument to -cc\n"; exit 1
+ elif [ ${fromarg} -eq 1 ]; then
+ printf "mhmail: missing argument to -from\n"; exit 1
+ elif [ ${headerfieldarg} -eq 1 ]; then
+ printf "mhmail: missing argument to -headerfield\n"; exit 1
+ elif [ ${subjectarg} -eq 1 ]; then
+ printf "mhmail: missing argument to -subject\n"; exit 1
+ elif [ ${toarg} -eq 1 ]; then
+ printf "mhmail: missing argument to -to\n"; exit 1
+ fi
+}
+
if [ $# -eq 0 ]; then
#### Emulate mhmail for reading mail.
exec "${nmhbindir}"/inc
else
#### Go through all the switches so we can build the draft.
- tolist=
- body=
- bodyarg=0
- cclist=
- ccarg=0
- from=
- fromarg=0
- subject=
- subjectarg=0
- resent=0
- postsendargs=
- switcharg=0
- use_send=0
- sendsw=1
+ tolist= ## To: addresses
+ toarg=0 ## whether currently handling -to
+ attacharg=0 ## whether currently handling -attach
+ attach_send_switch_added=0 ## whether added "-attach Nmh-Attachment" switch
+ body= ## contents of the message body
+ bodyarg=0 ## whether currently handling -body
+ cclist= ## Cc: addresses
+ ccarg=0 ## whether currently handling -cc
+ from= ## From: contents
+ fromarg=0 ## whether currently handling -from
+ headerfieldlist= ## header fields to be added to draft
+ headerfieldarg=0 ## whether currently handling -headerfield
+ mhmailswitch=0 ## whether currently handling any mhmail switch
+ subject= ## Subject: contents
+ subjectarg=0 ## whether currently handling -subject
+ resent=0 ## whether resending
+ postsendargs= ## switches to pass on to post or send
+ post_send_switch_arg=0 ## whether currently handling a post/send switch
+ use_send=0 ## use post (default) or send (-profile)
+ sendsw=1 ## to send (default) or not to send
for arg in "$@"; do
- case "${arg}" in
- -*) switcharg=0
- esac
-
- case "${arg}" in
+ case ${arg} in
#### Post and send won't accept -f -or -s because they'd be
#### ambiguous, so no conflicts with them. And they don't have
- #### -b, -c, or -r. For the new switches that compiled mhmail
+ #### -b, -c, -r, -t. For the new switches that compiled mhmail
#### didn't have: let -p indicate mhmail -profile, not send
- #### -port. -send masks the send(1) -send switch.
- -b|-bo|-bod|-body) bodyarg=1 ;;
- -c|-cc) ccarg=1 ;;
- -f|-fr|-fro|-from) fromarg=1 ;;
- -h|-he|-hel|-help) printf "%s\n" "${usage}"; exit ;;
- -nose|-nosen|-nosend) sendsw=0 ;;
- -p|-pr|-pro|-prof|-profi|-profil|-profile) use_send=1 ;;
+ #### -port. -send masks the send(1) -send switch. -attach
+ #### masks the send(1) -attach switch.
+ -at|-att|-atta|-attac|-attach)
+ mhmailswitch=1
+ attacharg=1
+ use_send=1
+ if [ ${attach_send_switch_added} -eq 0 ]; then
+ #### Override any send -attach switch in user's profile.
+ postsendargs=\
+"${postsendargs:+${postsendargs} }-attach Nmh-Attachment"
+ attach_send_switch_added=1
+ fi ;;
+ -b|-bo|-bod|-body) mhmailswitch=1; bodyarg=1 ;;
+ -c|-cc) mhmailswitch=1; ccarg=1 ;;
+ -f|-fr|-fro|-from) mhmailswitch=1; fromarg=1 ;;
+ -hea|-head|-heade|-header|-headerf|-headerfi|-headerfie|-headerfiel|\
+-headerfield) mhmailswitch=1; headerfieldarg=1 ;;
+ -hel|-help) printf "%s\n" "${usage}"; exit ;;
+ -nose|-nosen|-nosend) mhmailswitch=1; sendsw=0 ;;
+ -p|-pr|-pro|-prof|-profi|-profil|-profile) mhmailswitch=1; use_send=1 ;;
-resend) printf "mhmail: did you mean -resent instead of -resend?\n" 1>&2
exit 1 ;;
- -r|-re|-res|-rese|-resen|-resent) resent=1 ;;
- -se|-sen|-send) sendsw=1 ;;
- -su|-sub|-subj|-subje|-subjec|-subject) subjectarg=1 ;;
+ -r|-re|-res|-rese|-resen|-resent) mhmailswitch=1; resent=1 ;;
+ -se|-sen|-send) mhmailswitch=1; sendsw=1 ;;
+ -su|-sub|-subj|-subje|-subjec|-subject) mhmailswitch=1; subjectarg=1 ;;
+ -t|-to) toarg=1; ccarg=0 ;;
-v|-ve|-ver|-vers|-versi|-versio|-version)
#### Cheat instead of using autoconf and make to fill in the version.
"${nmhbindir}"/mhpath -v | sed 's/mhpath/mhmail/'; exit ;;
- -*) postsendargs="${postsendargs:+${postsendargs} }${arg}"; switcharg=1 ;;
- *) if [ ${bodyarg} -eq 1 ]; then
+ -*) if [ ${mhmailswitch} -eq 1 ]; then
+ checkforargs
+ mhmailswitch=0
+ fi
+ post_send_switch_arg=1
+ postsendargs="${postsendargs:+${postsendargs} }${arg}" ;;
+ *) mhmailswitch=0
+ if [ ${bodyarg} -eq 1 ]; then
body="${arg}
-"; bodyarg=0
+"
+ bodyarg=0
#### Allow -body "" by using just a newline for the body.
[ "${body}"x = x ] && body='
'
elif [ ${fromarg} -eq 1 ]; then
- from="${arg}"; fromarg=0
+ from="${arg}"
+ fromarg=0
elif [ ${subjectarg} -eq 1 ]; then
- subject="${arg}"; subjectarg=0
- elif [ ${switcharg} -eq 1 ]; then
+ subject="${arg}"
+ subjectarg=0
+ elif [ ${attacharg} -eq 1 ]; then
+ headerfieldlist="${headerfieldlist:+${headerfieldlist}}\
+Nmh-Attachment: ${arg}
+"
+ attacharg=0
+ elif [ ${headerfieldarg} -eq 1 ]; then
+ #### It's not strictly necessary to have one space after
+ #### the : that separates the header field name from the
+ #### body, but do it to avoid surprising someone.
+ add=`printf "${arg}" | sed -e 's/:/: /' -e 's/: /: /'`
+ headerfieldlist="${headerfieldlist:+${headerfieldlist}}${add}
+"
+ headerfieldarg=0
+ elif [ ${post_send_switch_arg} -eq 1 ]; then
postsendargs="${postsendargs:+${postsendargs} }${arg}"
elif [ ${ccarg} -eq 1 ]; then
- #### Never reset ccarg to 0, for compatibilty with compiled mhmail.
+ #### ccarg can only be reset to 0 by -to.
cclist="${cclist:+${cclist}, }${arg}"
else
#### An address.
tolist="${tolist:+${tolist}, }${arg}"
- fi
+ toarg=0
+ fi ;;
esac
done
#### Check for at least one address and -from.
if [ "${tolist}"x = x ]; then
- printf "mhmail: usage: mhmail addrs ... [switches]\n"
- exit 1
+ printf "mhmail: usage: mhmail addrs ... [switches]\n"; exit 1
fi
if [ "${from}"x = x ]; then
nmhlibdir=`${nmhbindir}/mhparam libdir`/
from=`${nmhlibdir}ap -format '%(localmbox)' 0`
fi
+ #### Check for missing mandatory arguments.
+ checkforargs
+
#### Build header.
[ ${resent} -eq 0 ] && prefix= || prefix='Resent-'
header="${prefix}To: ${tolist}
[ "${cclist}"x = x ] || header="${header}${prefix}Cc: ${cclist}
"
[ "${subject}"x = x ] || header="${header}${prefix}Subject: ${subject}
-";
+"
[ "${from}"x = x ] || header="${header}${prefix}From: ${from}
-";
+"
- #### Set up a file to supply as a draft to send/post. And set a
+ if [ "${headerfieldlist}" ]; then
+ header="${header}${headerfieldlist}"
+ fi
+
+ #### Set up a file to supply as a draft to post/send. And set a
#### trap to remove it. send moves the file to a backup, so it will
#### remove that, too.
umask 077
tmpdir="${MHTMPDIR:-${TMPDIR:-${TMP:-`${nmhbindir}/mhpath +`}}}"
- tmpfil="${tmpdir}/mhmail$$"
- tmpfilbackup="${tmpdir}/[,#]mhmail$$"
- trap 'rm -f '"${tmpfil}"' '"${tmpfilbackup}" EXIT
+ tmpfile="${tmpdir}/mhmail$$"
+ tmpfilebackup="${tmpdir}/[,#]mhmail$$"
+ tmpfileresent=
+ message_file=
if [ ${resent} -eq 0 ]; then
#### Add blank line after header if not resending.
header="${header}
"
+ message_file="${tmpfile}"
else
if [ ${use_send} -eq 0 ]; then
postsendargs="${postsendargs:+${postsendargs} }-dist"
+ message_file="${tmpfile}"
else
+ #### When resending with send, tmpfile will just contain the
+ #### Resent- header fields. "${tmpfileresent}" will contain
+ #### the message that is being resent.
+ tmpfileresent="${tmpdir}/mhmail-resent$$"
mhdist=1; export mhdist
- mhaltmsg=${tmpfil}; export mhaltmsg
- #### This doesn't work, I'm not sure about mhaltmsg.
- printf "mhmail: -resent not currently supported with -profile\n"
- exit 1
+ mhaltmsg=${tmpfileresent}; export mhaltmsg
+ message_file="${tmpfileresent}"
+ printf "" >"${message_file}" || exit 2
fi
fi
+ trap 'rm -f '"${tmpfile}"' '"${tmpfilebackup}"' '"${tmpfileresent}" EXIT
+
if [ "${body}"x = x ]; then
- #### First put message header in the file. cat >> handles blank
- #### lines better than body=`cat`.
- printf "%s" "${header}" > "${tmpfil}" || exit 1
+ #### First put message header in the file.
+ printf "%s" "${header}" >"${tmpfile}" || exit 2
- tmpfile_size_before=`wc -c "${tmpfil}"`
- #### Now grab the body from stdin.
- cat >>"${tmpfil}"
- tmpfile_size_after=`wc -c "${tmpfil}"`
+ tmpfile_size_before=`wc -c "${message_file}"`
+ #### Now grab the body from stdin. cat >> handles blank lines
+ #### better than body=`cat`.
+ cat >>"${message_file}" || exit 2
+ tmpfile_size_after=`wc -c "${message_file}"`
#### Don't allow an empty body (from stdin). Use string
#### comparison so we don't have to strip the filename, etc.
fi
#### Add trailing newline to body if it doesn't have one.
+ if [ `tail -n 1 "${message_file}" | wc -l` -ne 1 ]; then
+ printf "\n" >>"${message_file}" || exit 2
+ fi
+ else
+ #### Add trailing newline to body if it doesn't have one.
[ `printf "${body}" | tail -n 1 | wc -l` -ne 1 ] && body="${body}
"
- else
- #### Put message header and body in the file.
- printf "%s" "${header}${body}" > "${tmpfil}" || exit 1
+
+ if [ "${tmpfileresent}" ]; then
+ #### Put just the new message header in the file.
+ printf "%s" "${header}" >"${tmpfile}" || exit 2
+ #### and the body in the file to resend.
+ printf "${body}" >"${tmpfileresent}" || exit 2
+ else
+ #### Put message header and body in the file.
+ printf "%s" "${header}${body}" >"${tmpfile}" || exit 2
+ fi
fi
if [ ${sendsw} -eq 0 ]; then
- cat "${tmpfil}"
+ cat "${tmpfile}"
else
if [ ${use_send} -eq 0 ]; then
post_or_send=`${nmhbindir}/mhparam postproc`
post_or_send="${nmhbindir}/send"
fi
- if "${post_or_send}" "${tmpfil}" ${postsendargs}; then
+ if "${post_or_send}" "${tmpfile}" ${postsendargs}; then
exit
else
+ status=$?
+ mv -f "${tmpfile}" dead.letter
printf "Letter saved in dead.letter\n"
- #### exec skips the trap set above.
- exec mv "${tmpfil}" dead.letter
+ exit $status
fi
fi
fi
projects / mmh / blobdiff