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PR 197379: Add an option to run `syslogd' in the foreground
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Authored by rpokala-panasas.com on Feb 28 2015, 3:15 AM.
Index: usr.sbin/syslogd/syslogd.8
===================================================================
--- usr.sbin/syslogd/syslogd.8 (revision 279389)
+++ usr.sbin/syslogd/syslogd.8 (working copy)
@@ -36,7 +36,7 @@
.Nd log systems messages
.Sh SYNOPSIS
.Nm
-.Op Fl 468ACcdkNnosTuv
+.Op Fl 468ACcdFkNnosTuv
.Op Fl a Ar allowed_peer
.Op Fl b Ar bind_address
.Op Fl f Ar config_file
@@ -213,6 +213,17 @@
Specify the pathname of an alternate configuration file;
the default is
.Pa /etc/syslog.conf .
+.It Fl F
+Run
+.Nm
+in the foreground, rather than going into daemon mode. This is useful if
+some other process uses
+.Xr fork 2
+and
+.Xr exec 3
+to run
+.Nm ,
+and wants to monitor when and how it exits.
.It Fl k
Disable the translation of
messages received with facility
Index: usr.sbin/syslogd/syslogd.c
===================================================================
--- usr.sbin/syslogd/syslogd.c (revision 279389)
+++ usr.sbin/syslogd/syslogd.c (working copy)
@@ -271,6 +271,7 @@
static struct filed consfile; /* Console */
static int Debug; /* debug flag */
+static int Foreground = 0; /* Run in foreground, instead of daemonizing */
static int resolve = 1; /* resolve hostname */
static char LocalHostName[MAXHOSTNAMELEN]; /* our hostname */
static const char *LocalDomain; /* our local domain name */
@@ -360,7 +361,7 @@
dprintf("madvise() failed: %s\n", strerror(errno));
bindhostname = NULL;
- while ((ch = getopt(argc, argv, "468Aa:b:cCdf:kl:m:nNop:P:sS:Tuv"))
+ while ((ch = getopt(argc, argv, "468Aa:b:cCdf:Fkl:m:nNop:P:sS:Tuv"))
!= -1)
switch (ch) {
case '4':
@@ -396,6 +397,9 @@
case 'f': /* configuration file */
ConfFile = optarg;
break;
+ case 'F': /* run in foreground instead of daemon */
+ Foreground++;
+ break;
case 'k': /* keep remote kern fac */
KeepKernFac = 1;
break;
@@ -487,14 +491,14 @@
warn("cannot open pid file");
}
- if (!Debug) {
+ if ((!Foreground) && (!Debug)) {
ppid = waitdaemon(0, 0, 30);
if (ppid < 0) {
warn("could not become daemon");
pidfile_remove(pfh);
exit(1);
}
- } else {
+ } else if (Debug) {
setlinebuf(stdout);
}

Event Timeline

rpokala-panasas.com edited the content of this paste. (Show Details)Feb 28 2015, 3:15 AM
rpokala-panasas.com changed the title of this paste from untitled to PR 197379: Add an option to run `syslogd' in the foreground.
rpokala-panasas.com updated the paste's language from autodetect to autodetect.