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- Implement and use usage().

Browse Source 
- Document the -C option.
- Allow rtadvd to be invoked without any interfaces on the command line,
  and document that possibility.

MFC after:	1 week
This commit is contained in:
Dag-Erling Smørgrav 2013-02-25 16:47:09 +00:00
parent f2e472dcf4
commit c1803a93a4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=247270
2 changed files with 26 additions and 10 deletions
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16
usr.sbin/rtadvd/rtadvd.8
View File

@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd July 14, 2011
.Dd February 25, 2013
.Dt RTADVD 8
.Os
.Sh NAME
@ -39,13 +39,19 @@
.Nm
.Op Fl dDfRs
.Op Fl c Ar configfile
.Op Fl C Ar ctlsock
.Op Fl M Ar ifname
.Op Fl p Ar pidfile
.Ar interface ...
.Op Ar interface ...
.Sh DESCRIPTION
.Nm
sends router advertisement packets to the specified
.Ar interfaces .
If no interfaces are specified,
.Nm
will still run, but will not advertise any routes until interfaces are
added using
.Xr rtadvctl 8 .
.Pp
The program will daemonize itself on invocation.
It will then send router advertisement packets periodically, as well
@ -121,6 +127,11 @@ for the configuration file.
By default,
.Pa /etc/rtadvd.conf
is used.
.It Fl C
Specify an alternate location for the control socket used by
.Xr rtadvctl 8 .
The default is
.Pa /var/run/rtadvd.sock .
.It Fl d
Print debugging information.
.It Fl D
@ -185,6 +196,7 @@ The default process ID file.
.Ex -std
.Sh SEE ALSO
.Xr rtadvd.conf 5 ,
.Xr rtadvctl 8 ,
.Xr rtsol 8
.Rs
.%A Thomas Narten

20
usr.sbin/rtadvd/rtadvd.c
View File

@ -166,6 +166,15 @@ static void rtmsg_input(struct sockinfo *);
static void set_short_delay(struct ifinfo *);
static int check_accept_rtadv(int);
static void
usage(void)
{
fprintf(stderr, "usage: rtadvd [-dDfRs] "
"[-c configfile] [-C ctlsock] [-M ifname] [-p pidfile]\n");
exit(1);
}
int
main(int argc, char *argv[])
{
@ -177,7 +186,7 @@ main(int argc, char *argv[])
pid_t pid, otherpid;
/* get command line options and arguments */
while ((ch = getopt(argc, argv, "c:C:dDfM:p:Rs")) != -1) {
while ((ch = getopt(argc, argv, "c:C:dDfhM:p:Rs")) != -1) {
switch (ch) {
case 'c':
conffile = optarg;
@ -209,17 +218,12 @@ main(int argc, char *argv[])
case 'p':
pidfilename = optarg;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0) {
fprintf(stderr,
"usage: rtadvd [-dDfRs] [-c conffile] "
"[-C ctrlsockname] [-M ifname] "
"[-p pidfile] interfaces...\n");
exit(1);
}
logopt = LOG_NDELAY | LOG_PID;
if (fflag)