Date: Tue, 3 Mar 2015 20:07:59 +0000 (UTC) From: Rui Paulo <rpaulo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r279567 - head/usr.sbin/syslogd Message-ID: <201503032008.t23K803f068483@svn.freebsd.org>
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Author: rpaulo Date: Tue Mar 3 20:07:59 2015 New Revision: 279567 URL: https://svnweb.freebsd.org/changeset/base/279567 Log: Add and document an option to cause syslogd to run in the foreground. This allows a separate process to monitor when and how syslogd exits. That process can then restart syslogd if needed. Differential Revision: https://reviews.freebsd.org/D1985 Submitted by: Ravi Pokala Reviewed by: allanjude (man page) Modified: head/usr.sbin/syslogd/syslogd.8 head/usr.sbin/syslogd/syslogd.c Modified: head/usr.sbin/syslogd/syslogd.8 ============================================================================== --- head/usr.sbin/syslogd/syslogd.8 Tue Mar 3 17:20:19 2015 (r279566) +++ head/usr.sbin/syslogd/syslogd.8 Tue Mar 3 20:07:59 2015 (r279567) @@ -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 @@ This is probably only of use to develope 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 Modified: head/usr.sbin/syslogd/syslogd.c ============================================================================== --- head/usr.sbin/syslogd/syslogd.c Tue Mar 3 17:20:19 2015 (r279566) +++ head/usr.sbin/syslogd/syslogd.c Tue Mar 3 20:07:59 2015 (r279567) @@ -271,6 +271,7 @@ static struct filed *Files; /* Log files 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 @@ main(int argc, char *argv[]) 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 @@ main(int argc, char *argv[]) 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 @@ main(int argc, char *argv[]) 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); }
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