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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
commitb5896ba9f6047e7031e2bdee0622d543e11a6734 (patch)
treefd7b460593a2fee1be579bec5697e6d887ea3421 /src/discard
parentInitial commit. (diff)
downloadpostfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.tar.xz
postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.zip
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/discard')
l---------src/discard/.indent.pro1
-rw-r--r--src/discard/.printfck25
-rw-r--r--src/discard/Makefile.in86
-rw-r--r--src/discard/discard.c253
4 files changed, 365 insertions, 0 deletions
diff --git a/src/discard/.indent.pro b/src/discard/.indent.pro
new file mode 120000
index 0000000..5c837ec
--- /dev/null
+++ b/src/discard/.indent.pro
@@ -0,0 +1 @@
+../../.indent.pro \ No newline at end of file
diff --git a/src/discard/.printfck b/src/discard/.printfck
new file mode 100644
index 0000000..66016ed
--- /dev/null
+++ b/src/discard/.printfck
@@ -0,0 +1,25 @@
+been_here_xt 2 0
+bounce_append 5 0
+cleanup_out_format 1 0
+defer_append 5 0
+mail_command 1 0
+mail_print 1 0
+msg_error 0 0
+msg_fatal 0 0
+msg_info 0 0
+msg_panic 0 0
+msg_warn 0 0
+opened 4 0
+post_mail_fprintf 1 0
+qmgr_message_bounce 2 0
+rec_fprintf 2 0
+sent 4 0
+smtp_cmd 1 0
+smtp_mesg_fail 2 0
+smtp_printf 1 0
+smtp_rcpt_fail 3 0
+smtp_site_fail 2 0
+udp_syslog 1 0
+vstream_fprintf 1 0
+vstream_printf 0 0
+vstring_sprintf 1 0
diff --git a/src/discard/Makefile.in b/src/discard/Makefile.in
new file mode 100644
index 0000000..f8c3b65
--- /dev/null
+++ b/src/discard/Makefile.in
@@ -0,0 +1,86 @@
+SHELL = /bin/sh
+SRCS = discard.c
+OBJS = discard.o
+HDRS =
+TESTSRC =
+DEFS = -I. -I$(INC_DIR) -D$(SYSTYPE)
+CFLAGS = $(DEBUG) $(OPT) $(DEFS)
+TESTPROG=
+PROG = discard
+INC_DIR = ../../include
+LIBS = ../../lib/lib$(LIB_PREFIX)master$(LIB_SUFFIX) \
+ ../../lib/lib$(LIB_PREFIX)global$(LIB_SUFFIX) \
+ ../../lib/lib$(LIB_PREFIX)util$(LIB_SUFFIX)
+
+.c.o:; $(CC) $(CFLAGS) -c $*.c
+
+$(PROG): $(OBJS) $(LIBS)
+ $(CC) $(CFLAGS) $(SHLIB_RPATH) -o $@ $(OBJS) $(LIBS) $(SYSLIBS)
+
+$(OBJS): ../../conf/makedefs.out
+
+Makefile: Makefile.in
+ cat ../../conf/makedefs.out $? >$@
+
+test: $(TESTPROG)
+
+tests:
+
+root_tests:
+
+update: ../../libexec/$(PROG)
+
+../../libexec/$(PROG): $(PROG)
+ cp $(PROG) ../../libexec
+
+printfck: $(OBJS) $(PROG)
+ rm -rf printfck
+ mkdir printfck
+ sed '1,/^# do not edit/!d' Makefile >printfck/Makefile
+ set -e; for i in *.c; do printfck -f .printfck $$i >printfck/$$i; done
+ cd printfck; make "INC_DIR=../../../include" `cd ..; ls *.o`
+
+lint:
+ lint $(DEFS) $(SRCS) $(LINTFIX)
+
+clean:
+ rm -f *.o *core $(PROG) $(TESTPROG) junk
+ rm -rf printfck
+
+tidy: clean
+
+depend: $(MAKES)
+ (sed '1,/^# do not edit/!d' Makefile.in; \
+ set -e; for i in [a-z][a-z0-9]*.c; do \
+ $(CC) -E $(DEFS) $(INCL) $$i | grep -v '[<>]' | sed -n -e '/^# *1 *"\([^"]*\)".*/{' \
+ -e 's//'`echo $$i|sed 's/c$$/o/'`': \1/' \
+ -e 's/o: \.\//o: /' -e p -e '}' ; \
+ done | LANG=C sort -u) | grep -v '[.][o][:][ ][/]' >$$$$ && mv $$$$ Makefile.in
+ @$(EXPORT) make -f Makefile.in Makefile 1>&2
+
+# do not edit below this line - it is generated by 'make depend'
+discard.o: ../../include/attr.h
+discard.o: ../../include/bounce.h
+discard.o: ../../include/check_arg.h
+discard.o: ../../include/deliver_completed.h
+discard.o: ../../include/deliver_request.h
+discard.o: ../../include/dsn.h
+discard.o: ../../include/dsn_buf.h
+discard.o: ../../include/dsn_util.h
+discard.o: ../../include/flush_clnt.h
+discard.o: ../../include/htable.h
+discard.o: ../../include/mail_conf.h
+discard.o: ../../include/mail_queue.h
+discard.o: ../../include/mail_server.h
+discard.o: ../../include/mail_version.h
+discard.o: ../../include/msg.h
+discard.o: ../../include/msg_stats.h
+discard.o: ../../include/mymalloc.h
+discard.o: ../../include/nvtable.h
+discard.o: ../../include/recipient_list.h
+discard.o: ../../include/sent.h
+discard.o: ../../include/sys_defs.h
+discard.o: ../../include/vbuf.h
+discard.o: ../../include/vstream.h
+discard.o: ../../include/vstring.h
+discard.o: discard.c
diff --git a/src/discard/discard.c b/src/discard/discard.c
new file mode 100644
index 0000000..331f96f
--- /dev/null
+++ b/src/discard/discard.c
@@ -0,0 +1,253 @@
+/*++
+/* NAME
+/* discard 8
+/* SUMMARY
+/* Postfix discard mail delivery agent
+/* SYNOPSIS
+/* \fBdiscard\fR [generic Postfix daemon options]
+/* DESCRIPTION
+/* The Postfix \fBdiscard\fR(8) delivery agent processes
+/* delivery requests from
+/* the queue manager. Each request specifies a queue file, a sender
+/* address, a next-hop destination that is treated as the reason for
+/* discarding the mail, and recipient information.
+/* The reason may be prefixed with an RFC 3463-compatible detail code.
+/* This program expects to be run from the \fBmaster\fR(8) process
+/* manager.
+/*
+/* The \fBdiscard\fR(8) delivery agent pretends to deliver all recipients
+/* in the delivery request, logs the "next-hop" destination
+/* as the reason for discarding the mail, updates the
+/* queue file, and either marks recipients as finished or informs the
+/* queue manager that delivery should be tried again at a later time.
+/*
+/* Delivery status reports are sent to the \fBtrace\fR(8)
+/* daemon as appropriate.
+/* SECURITY
+/* .ad
+/* .fi
+/* The \fBdiscard\fR(8) mailer is not security-sensitive. It does not talk
+/* to the network, and can be run chrooted at fixed low privilege.
+/* STANDARDS
+/* RFC 3463 (Enhanced Status Codes)
+/* DIAGNOSTICS
+/* Problems and transactions are logged to \fBsyslogd\fR(8)
+/* or \fBpostlogd\fR(8).
+/*
+/* Depending on the setting of the \fBnotify_classes\fR parameter,
+/* the postmaster is notified of bounces and of other trouble.
+/* CONFIGURATION PARAMETERS
+/* .ad
+/* .fi
+/* Changes to \fBmain.cf\fR are picked up automatically as \fBdiscard\fR(8)
+/* processes run for only a limited amount of time. Use the command
+/* "\fBpostfix reload\fR" to speed up a change.
+/*
+/* The text below provides only a parameter summary. See
+/* \fBpostconf\fR(5) for more details including examples.
+/* .IP "\fBconfig_directory (see 'postconf -d' output)\fR"
+/* The default location of the Postfix main.cf and master.cf
+/* configuration files.
+/* .IP "\fBdaemon_timeout (18000s)\fR"
+/* How much time a Postfix daemon process may take to handle a
+/* request before it is terminated by a built-in watchdog timer.
+/* .IP "\fBdelay_logging_resolution_limit (2)\fR"
+/* The maximal number of digits after the decimal point when logging
+/* sub-second delay values.
+/* .IP "\fBdouble_bounce_sender (double-bounce)\fR"
+/* The sender address of postmaster notifications that are generated
+/* by the mail system.
+/* .IP "\fBipc_timeout (3600s)\fR"
+/* The time limit for sending or receiving information over an internal
+/* communication channel.
+/* .IP "\fBmax_idle (100s)\fR"
+/* The maximum amount of time that an idle Postfix daemon process waits
+/* for an incoming connection before terminating voluntarily.
+/* .IP "\fBmax_use (100)\fR"
+/* The maximal number of incoming connections that a Postfix daemon
+/* process will service before terminating voluntarily.
+/* .IP "\fBprocess_id (read-only)\fR"
+/* The process ID of a Postfix command or daemon process.
+/* .IP "\fBprocess_name (read-only)\fR"
+/* The process name of a Postfix command or daemon process.
+/* .IP "\fBqueue_directory (see 'postconf -d' output)\fR"
+/* The location of the Postfix top-level queue directory.
+/* .IP "\fBsyslog_facility (mail)\fR"
+/* The syslog facility of Postfix logging.
+/* .IP "\fBsyslog_name (see 'postconf -d' output)\fR"
+/* A prefix that is prepended to the process name in syslog
+/* records, so that, for example, "smtpd" becomes "prefix/smtpd".
+/* .PP
+/* Available in Postfix 3.3 and later:
+/* .IP "\fBservice_name (read-only)\fR"
+/* The master.cf service name of a Postfix daemon process.
+/* SEE ALSO
+/* qmgr(8), queue manager
+/* bounce(8), delivery status reports
+/* error(8), Postfix error delivery agent
+/* postconf(5), configuration parameters
+/* master(5), generic daemon options
+/* master(8), process manager
+/* postlogd(8), Postfix logging
+/* syslogd(8), system logging
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* HISTORY
+/* This service was introduced with Postfix version 2.2.
+/* AUTHOR(S)
+/* Victor Duchovni
+/* Morgan Stanley
+/*
+/* Based on code by:
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*
+/* Wietse Venema
+/* Google, Inc.
+/* 111 8th Avenue
+/* New York, NY 10011, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <vstream.h>
+
+/* Global library. */
+
+#include <deliver_request.h>
+#include <mail_queue.h>
+#include <bounce.h>
+#include <deliver_completed.h>
+#include <flush_clnt.h>
+#include <sent.h>
+#include <dsn_util.h>
+#include <mail_version.h>
+
+/* Single server skeleton. */
+
+#include <mail_server.h>
+
+/* deliver_message - deliver message with extreme prejudice */
+
+static int deliver_message(DELIVER_REQUEST *request)
+{
+ const char *myname = "deliver_message";
+ VSTREAM *src;
+ int result = 0;
+ int status;
+ RECIPIENT *rcpt;
+ int nrcpt;
+ DSN_SPLIT dp;
+ DSN dsn;
+
+ if (msg_verbose)
+ msg_info("deliver_message: from %s", request->sender);
+
+ /*
+ * Sanity checks.
+ */
+ if (request->nexthop[0] == 0)
+ msg_fatal("empty nexthop hostname");
+ if (request->rcpt_list.len <= 0)
+ msg_fatal("recipient count: %d", request->rcpt_list.len);
+
+ /*
+ * Open the queue file. Opening the file can fail for a variety of
+ * reasons, such as the system running out of resources. Instead of
+ * throwing away mail, we're raising a fatal error which forces the mail
+ * system to back off, and retry later.
+ */
+ src = mail_queue_open(request->queue_name, request->queue_id,
+ O_RDWR, 0);
+ if (src == 0)
+ msg_fatal("%s: open %s %s: %m", myname,
+ request->queue_name, request->queue_id);
+ if (msg_verbose)
+ msg_info("%s: file %s", myname, VSTREAM_PATH(src));
+
+ /*
+ * Discard all recipients.
+ */
+#define BOUNCE_FLAGS(request) DEL_REQ_TRACE_FLAGS(request->flags)
+
+ dsn_split(&dp, "2.0.0", request->nexthop);
+ (void) DSN_SIMPLE(&dsn, DSN_STATUS(dp.dsn), dp.text);
+ for (nrcpt = 0; nrcpt < request->rcpt_list.len; nrcpt++) {
+ rcpt = request->rcpt_list.info + nrcpt;
+ status = sent(BOUNCE_FLAGS(request), request->queue_id,
+ &request->msg_stats, rcpt, "none", &dsn);
+ if (status == 0 && (request->flags & DEL_REQ_FLAG_SUCCESS))
+ deliver_completed(src, rcpt->offset);
+ result |= status;
+ }
+
+ /*
+ * Clean up.
+ */
+ if (vstream_fclose(src))
+ msg_warn("close %s %s: %m", request->queue_name, request->queue_id);
+
+ return (result);
+}
+
+/* discard_service - perform service for client */
+
+static void discard_service(VSTREAM *client_stream, char *unused_service, char **argv)
+{
+ DELIVER_REQUEST *request;
+ int status;
+
+ /*
+ * Sanity check. This service takes no command-line arguments.
+ */
+ if (argv[0])
+ msg_fatal("unexpected command-line argument: %s", argv[0]);
+
+ /*
+ * This routine runs whenever a client connects to the UNIX-domain socket
+ * dedicated to the discard mailer. What we see below is a little
+ * protocol to (1) tell the queue manager that we are ready, (2) read a
+ * request from the queue manager, and (3) report the completion status
+ * of that request. All connection-management stuff is handled by the
+ * common code in single_server.c.
+ */
+ if ((request = deliver_request_read(client_stream)) != 0) {
+ status = deliver_message(request);
+ deliver_request_done(client_stream, request, status);
+ }
+}
+
+/* pre_init - pre-jail initialization */
+
+static void pre_init(char *unused_name, char **unused_argv)
+{
+ flush_init();
+}
+
+MAIL_VERSION_STAMP_DECLARE;
+
+/* main - pass control to the single-threaded skeleton */
+
+int main(int argc, char **argv)
+{
+
+ /*
+ * Fingerprint executables and core dumps.
+ */
+ MAIL_VERSION_STAMP_ALLOCATE;
+
+ single_server_main(argc, argv, discard_service,
+ CA_MAIL_SERVER_PRE_INIT(pre_init),
+ 0);
+}