Give users the ability to select an alternative MTA during the installation.

This option adds Postfix and Exim to the list, however, qmail is not added
due to license restrictions.

Collaborated with:	Simon L. Nielsen <simon@nitro.dk>
Reviewed by:		jhb, re@, -audit.

1 files changed, 185 insertions, 5 deletions

diff --git a/usr.sbin/sade/config.c b/usr.sbin/sade/config.c
index 29e7cfe..8709798 100644
--- a/usr.sbin/sade/config.c
+++ b/usr.sbin/sade/config.c
@@ -373,23 +373,58 @@ configRC(dialogMenuItem *unused)
     return DITEM_SUCCESS;
 }
 
+/*
+ * Write out rc.conf
+ *
+ * rc.conf is sorted if running as init and the needed utilities are
+ * present
+ *
+ * If rc.conf is sorted, all variables in rc.conf which conflict with
+ * the variables in the environment are removed from the original
+ * rc.conf
+ */
 void
 configRC_conf(void)
 {
-    FILE *rcSite;
+    char line[256];
+    FILE *rcSite, *rcOld;
     Variable *v;
     int write_header;
     time_t t_loc;
     char *cp;
     static int did_marker = 0;
+    int do_sort;
+    int do_merge;
     time_t tp;
 
     configTtys();
     write_header = !file_readable("/etc/rc.conf");
-    rcSite = fopen("/etc/rc.conf", "a");
-    if (!rcSite)
+    do_sort = RunningAsInit && file_readable("/usr/bin/sort") &&
+	file_readable("/usr/bin/uniq");
+    do_merge = do_sort && file_readable("/etc/rc.conf");
+
+    if(do_merge) {
+	rcSite = fopen("/etc/rc.conf.new", "w");
+    } else
+	rcSite = fopen("/etc/rc.conf", "a");
+    if (rcSite == NULL) {
+	msgError("Error opening new rc.conf for writing: %s (%u)", strerror(errno), errno);
 	return;
-    if (write_header) {
+    }
+
+    if (do_merge) {
+	/* "Copy" the old rc.conf */
+	rcOld = fopen("/etc/rc.conf", "r");
+	if(!rcOld) {
+	    msgError("Error opening rc.conf for reading: %s (%u)", strerror(errno), errno);
+	    return;
+	}
+	while(fgets(line, sizeof(line), rcOld)) {
+	    if(line[0] == '#' || variable_check2(line) != 0)
+		fprintf(rcSite, "%s", line);
+	}
+	fclose(rcOld);
+    } else {
 	fprintf(rcSite, "# This file now contains just the overrides from /etc/defaults/rc.conf.\n");
 	fprintf(rcSite, "# Please make all changes to this file, not to /etc/defaults/rc.conf.\n\n");
 	fprintf(rcSite, "# Enable network daemons for user convenience.\n");
@@ -411,10 +446,19 @@ configRC_conf(void)
 	}
     }
     fclose(rcSite);
+
+    if(do_merge) {
+	if(rename("/etc/rc.conf.new", "/etc/rc.conf") != 0) {
+	    msgError("Error renaming temporary rc.conf: %s (%u)", strerror(errno), errno);
+	    return;
+	}
+    }
+
     /* Tidy up the resulting file if it's late enough in the installation
 	for sort and uniq to be available */
-    if (RunningAsInit && file_readable("/usr/bin/sort") && file_readable("/usr/bin/uniq"))
+    if (do_sort) {
 	(void)vsystem("sort /etc/rc.conf | uniq > /etc/rc.conf.new && mv /etc/rc.conf.new /etc/rc.conf");
+    }
 }
 
 int
@@ -1091,3 +1135,139 @@ configLoaderACPI(int disable)
     return DITEM_SUCCESS;
 } 
 #endif
+
+int
+configMTAPostfix(dialogMenuItem *self)
+{
+    int ret;
+    FILE *perconf;
+
+    if(setenv("POSTFIX_DEFAULT_MTA", "YES", 1) != 0)
+	msgError("Error setting the enviroment variable POSTFIX_DEFAULT_MTA: %s (%u)",
+		 strerror(errno), errno);
+
+    ret = package_add("postfix");
+    unsetenv("POSTFIX_DEFAULT_MTA");
+
+    if(DITEM_STATUS(ret) == DITEM_FAILURE) {
+	msgConfirm("An error occurred while adding the postfix package\n"
+		   "Please change installation media and try again.");
+	return ret;
+    }
+
+    variable_set2(VAR_SENDMAIL_ENABLE, "YES", 1);
+    variable_set2("sendmail_flags", "-bd", 1);
+    variable_set2("sendmail_outbound_enable", "NO", 1);
+    variable_set2("sendmail_submit_enable", "NO", 1);
+    variable_set2("sendmail_msp_queue_enable", "NO", 1);
+
+    perconf = fopen("/etc/periodic.conf", "a");
+    if (perconf == NULL) {
+	msgConfirm("Unable to open /etc/periodic.conf.\n"
+		   "The daily cleanup scripts might generate errors when\n"
+		   "trying to run some sendmail only cleanup scripts.\n"
+		   "Please consult the documentation for the postfix port on how to\n"
+		   "fix this.");
+
+	/* Not really a serious problem, so we return success */
+	return DITEM_SUCCESS;
+    }
+
+    fprintf(perconf, "# --- Generated by sysinstall ---\n");
+    fprintf(perconf, "daily_clean_hoststat_enable=\"NO\"\n");
+    fprintf(perconf, "daily_status_mail_rejects_enable=\"NO\"\n");
+    fprintf(perconf, "daily_status_include_submit_mailq=\"NO\"\n");
+    fprintf(perconf, "daily_submit_queuerun=\"NO\"\n");
+    fclose(perconf);
+
+    msgConfirm("Postfix is now installed and enabled as the default MTA.\n"
+	       "Please check that the configuration works as expected.\n"
+	       "See the Postfix documentation for more information.\n"
+	       "The documentation can be found in /usr/local/share/doc/postfix/\n"
+	       "or on the Postfix website at http://www.postfix.org/.");
+
+    return DITEM_SUCCESS;
+}
+
+int
+configMTAExim(dialogMenuItem *self)
+{
+    int ret;
+    FILE *perconf, *mailerconf, *newsyslogconf;
+
+    ret = package_add("exim");
+
+    if(DITEM_STATUS(ret) == DITEM_FAILURE) {
+	msgConfirm("An error occurred while adding the exim package\n"
+		   "Please change installation media and try again.");
+	return ret;
+    }
+
+    variable_set2(VAR_SENDMAIL_ENABLE, "NONE", 1);
+
+    if(file_readable("/usr/local/etc/exim/configure.default") &&
+	!file_readable("/usr/local/etc/exim/configure")) {
+	if(vsystem("cp /usr/local/etc/exim/configure.default /usr/local/etc/exim/configure"))
+	    msgConfirm("An error occurred while coping the exim configuration file.\n"
+		       "Please check if exim is working after you have completed this\n"
+		       "installation.\n");
+    }
+
+    /* Update periodic.conf */
+    perconf = fopen("/etc/periodic.conf", "a");
+    if (perconf == NULL) {
+	/* Not really a serious problem, so we do not abort */
+	msgConfirm("Unable to open /etc/periodic.conf.\n"
+		   "The daily cleanup scripts might generate errors when\n"
+		   "trying to run some sendmail only cleanup scripts.\n"
+		   "Please consult the documentation for the postfix port on how to\n"
+		   "fix this.");
+    } else {
+	fprintf(perconf, "# --- Generated by sysinstall ---\n");
+	fprintf(perconf, "daily_status_include_submit_mailq=\"NO\"\n");
+	fclose(perconf);
+    }
+
+    /* Update mailer.conf */
+    vsystem("mv -f /etc/mail/mailer.conf /etc/mail/mailer.conf.old");
+    mailerconf = fopen("/etc/mail/mailer.conf", "w");
+    if (mailerconf == NULL) {
+	/* Not really a serious problem, so we do not abort */
+	msgConfirm("Unable to open /etc/mailer.conf.\n"
+		   "Some programs which use the sendmail wrappers may not work.\n"
+		   "Please consult the documentation for the exim port on how\n"
+		   "to correct this.");
+    } else {
+	fprintf(mailerconf, "# --- Generated by sysinstall ---\n");
+	fprintf(mailerconf, "# Execute exim instead of sendmail\n");
+	fprintf(mailerconf, "#\n");
+	fprintf(mailerconf, "sendmail	/usr/local/sbin/exim\n");
+	fprintf(mailerconf, "send-mail	/usr/local/sbin/exim\n");
+	fprintf(mailerconf, "mailq		/usr/local/sbin/exim -bp\n");
+	fprintf(mailerconf, "newaliases	/usr/bin/true\n");
+	fclose(mailerconf);
+    }
+
+    /* Make newsyslog rotate exim logfiles */
+    newsyslogconf = fopen("/etc/newsyslog.conf", "a");
+    if (newsyslogconf == NULL) {
+	/* Not really a serious problem, so we do not abort */
+	msgConfirm("Unable to open /etc/newsyslog.conf.\n"
+		   "The exim logfiles will not be rotated.\n"
+		   "Please consult the documentation for the exim port on how to\n"
+		   "rotate the logfiles.");
+    } else {
+	fprintf(newsyslogconf, "# --- Generated by sysinstall ---\n");
+	fprintf(newsyslogconf, "/var/log/exim/mainlog	mailnull:mail	640  7	   *	@T00  Z\n");
+	fprintf(newsyslogconf, "/var/log/exim/rejectlog	mailnull:mail	640  7	   *	@T00  Z\n");
+	fclose(newsyslogconf);
+    }
+
+    msgConfirm("Exim is now installed and enabled as the default MTA.\n"
+	       "Please check that the configuration works as expected.\n"
+	       "See the Exim documentation for more information.\n"
+	       "The documentation can be found in /usr/local/share/doc/exim/\n"
+	       "or on the Exim website at http://www.exim.org/.");
+
+    return DITEM_SUCCESS;
+}