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comparison bin/bsmtp2dma @ 119:5c92aeaec114

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Try to make the mailer's input independent of a trailing single "." -- as opensmtpd's sendmail does not grok them. Rely on closing fds in the proper order alone.
author Franz Glasner <fzglas.hg@dom66.de>
date Tue, 15 Oct 2019 23:28:39 +0200
parents dad9f2d80c10
children 5366fb3b222c
comparison
equal deleted inserted replaced
118:cf9dde7a3a0d 119:5c92aeaec114
114 Will be written into the "To:" header also. 114 Will be written into the "To:" header also.
115 115
116 Input (Globals): 116 Input (Globals):
117 MAILER 117 MAILER
118 MAILCONTENT 118 MAILCONTENT
119 MAILFIFO 119 MAILFIFO_STDIN
120 MAILFIFO_STDOUT
120 CC 121 CC
121 FROM 122 FROM
122 REPLYTO 123 REPLYTO
123 SUBJECT 124 SUBJECT
124 125
129 This procedure starts the configured mailer as coproc and sends 130 This procedure starts the configured mailer as coproc and sends
130 email headers and contents to the started mailer. 131 email headers and contents to the started mailer.
131 132
132 ' 133 '
133 local _recipient _rc _oifs _text _pid_mailer _recipient_addr 134 local _recipient _rc _oifs _text _pid_mailer _recipient_addr
134 local _from_from _from_addr _sender_addr 135 local _from_from _from_addr _sender_addr _dummy
135 136
136 _recipient="$1" 137 _recipient="$1"
137 _rc=0 138 _rc=0
138 139
139 if parse_addr "${_recipient}"; then 140 if parse_addr "${_recipient}"; then
154 echo "ERROR: unknown sender name in \`${FROM}'" >&2 155 echo "ERROR: unknown sender name in \`${FROM}'" >&2
155 return 1 156 return 1
156 fi 157 fi
157 fi 158 fi
158 159
159 mkfifo -m 0600 "${MAILFIFO}" 160 mkfifo -m 0600 "${MAILFIFO_STDIN}"
160 _rc=$? 161 _rc=$?
161 if [ ${_rc} -ne 0 ]; then 162 if [ ${_rc} -ne 0 ]; then
162 return ${_rc} 163 return ${_rc}
163 fi 164 fi
164 165 mkfifo -m 0600 "${MAILFIFO_STDOUT}"
165 exec 3<>"${MAILFIFO}" 166 _rc=$?
166 167 if [ ${_rc} -ne 0 ]; then
167 "$MAILER" -f "${_sender_addr}" "${_recipient_addr}" <&3 & 168 rm -f "${MAILFIFO_STDIN}"
169 return ${_rc}
170 fi
171
172
173 "$MAILER" -f "${_sender_addr}" "${_recipient_addr}" <${MAILFIFO_STDIN} >${MAILFIFO_STDOUT} &
168 _pid_mailer=$! 174 _pid_mailer=$!
175
176 exec 3>"${MAILFIFO_STDIN}"
177 exec 4<"${MAILFIFO_STDOUT}"
169 178
170 printf "To: %s\n" "${_recipient}" >&3 179 printf "To: %s\n" "${_recipient}" >&3
171 printf "From: %s\n" "${_from_from}" >&3 180 printf "From: %s\n" "${_from_from}" >&3
172 if [ "${_sender_addr}" != "${_from_addr}" ]; then 181 if [ "${_sender_addr}" != "${_from_addr}" ]; then
173 printf "Sender: %s\n" "${_sender_addr}" >&3 182 printf "Sender: %s\n" "${_sender_addr}" >&3
197 " 206 "
198 cat "${MAILCONTENT}" | 207 cat "${MAILCONTENT}" |
199 while read _text; do 208 while read _text; do
200 printf "%s\n" "$_text" >&3 209 printf "%s\n" "$_text" >&3
201 done 210 done
202 printf ".\n" >&3 211 # not all mailer recognize this
203 212 # printf ".\n" >&3
204 IFS="$_oifs" 213 IFS="$_oifs"
205 214
206 # close the fd to the pipe: coproc should get EOF 215 # close the fd to the pipe: coproc should get EOF
207 exec 3>&- 216 exec 3>&-
217 # read eventually remaining stuff from the mailer until EOF
218 IFS='' read _dummy <&4
219 exec 4<&-
208 220
209 wait $_pid_mailer 221 wait $_pid_mailer
210 _rc=$? 222 _rc=$?
211 223
212 # we are done with the named pipe 224 # we are done with the named pipes
213 rm -f "${MAILFIFO}" 225 rm -f "${MAILFIFO_STDIN}"
226 rm -f "${MAILFIFO_STDOUT}"
214 227
215 return ${_rc} 228 return ${_rc}
216 } 229 }
217 230
218 231
259 272
260 # return code 273 # return code
261 _rc=0 274 _rc=0
262 275
263 MAILTMPDIR="$(mktemp -d)" 276 MAILTMPDIR="$(mktemp -d)"
264 MAILFIFO="${MAILTMPDIR}/mail-stdin" 277 MAILFIFO_STDIN="${MAILTMPDIR}/mail-stdin"
278 MAILFIFO_STDOUT="${MAILTMPDIR}/mail-stdout"
265 MAILCONTENT="${MAILTMPDIR}/mail-text" 279 MAILCONTENT="${MAILTMPDIR}/mail-text"
266 280
267 # 281 #
268 # Clean up existing temporary stuff on all sorts of exit 282 # Clean up existing temporary stuff on all sorts of exit
269 # (including the "exit" call (signal 0)) 283 # (including the "exit" call (signal 0))