Index: head/usr.sbin/cron/cron/cron.8 =================================================================== --- head/usr.sbin/cron/cron/cron.8 +++ head/usr.sbin/cron/cron/cron.8 @@ -17,7 +17,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 29, 2008 +.Dd August 21, 2016 .Dt CRON 8 .Os .Sh NAME @@ -28,6 +28,7 @@ .Op Fl j Ar jitter .Op Fl J Ar rootjitter .Op Fl m Ar mailto +.Op Fl n .Op Fl s .Op Fl o .Op Fl x Ar debugflag Ns Op , Ns Ar ... @@ -132,6 +133,8 @@ .Li '' or .Li \*q\*q . +.It Fl n +Don't daemonize, run in foreground instead. .It Fl s Enable special handling of situations when the GMT offset of the local timezone changes, such as the switches between the standard time and Index: head/usr.sbin/cron/cron/cron.c =================================================================== --- head/usr.sbin/cron/cron/cron.c +++ head/usr.sbin/cron/cron/cron.c @@ -49,6 +49,7 @@ static time_t last_time = 0; static int dst_enabled = 0; +static int dont_daemonize = 0; struct pidfh *pfh; static void @@ -58,7 +59,7 @@ #endif fprintf(stderr, "usage: cron [-j jitter] [-J rootjitter] " - "[-m mailto] [-s] [-o] [-x debugflag[,...]]\n"); + "[-m mailto] [-n ] [-s] [-o] [-x debugflag[,...]]\n"); #if DEBUGGING fprintf(stderr, "\ndebugflags: "); @@ -136,7 +137,7 @@ if (0) { # endif (void) fprintf(stderr, "[%d] cron started\n", getpid()); - } else { + } else if (dont_daemonize == 0) { if (daemon(1, 0) == -1) { pidfile_remove(pfh); log_it("CRON",getpid(),"DEATH","can't become daemon"); @@ -512,7 +513,7 @@ int argch; char *endp; - while ((argch = getopt(argc, argv, "j:J:m:osx:")) != -1) { + while ((argch = getopt(argc, argv, "j:J:m:nosx:")) != -1) { switch (argch) { case 'j': Jitter = strtoul(optarg, &endp, 10); @@ -529,6 +530,9 @@ case 'm': defmailto = optarg; break; + case 'n': + dont_daemonize = 1; + break; case 'o': dst_enabled = 0; break;