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Code Issues Releases Activity

Make it clear that -a flag and interface parameter are mutually exclusive

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This commit is contained in:
Philippe Charnier 2003-08-16 22:23:16 +00:00
parent f29db4e7ef
commit b0fed5c6b6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=119003
2 changed files with 19 additions and 13 deletions
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8
usr.sbin/rarpd/rarpd.8
View File

@ -27,9 +27,13 @@
.Nd reverse ARP daemon
.Sh SYNOPSIS
.Nm
.Op Fl adfsv
.Fl a
.Op Fl dfsv
.Op Fl t Ar directory
.Op Ar interface
.Nm
.Op Fl dfsv
.Op Fl t Ar directory
.Ar interface
.Sh DESCRIPTION
The
.Nm

24
usr.sbin/rarpd/rarpd.c
View File

@ -32,8 +32,8 @@ __FBSDID("$FreeBSD$");
/*
* rarpd - Reverse ARP Daemon
*
* Usage: rarpd -a [ -dfsv ] [-t directory] [ hostname ]
* rarpd [ -dfsv ] [-t directory] interface [ hostname ]
* Usage: rarpd -a [-dfsv] [-t directory] [hostname]
* rarpd [-dfsv] [-t directory] interface [hostname]
*
* 'hostname' is optional solely for backwards compatibility with Sun's rarpd.
* Currently, the argument is ignored.
@ -145,7 +145,7 @@ main(int argc, char *argv[])
openlog(name, LOG_PID | LOG_CONS, LOG_DAEMON);
opterr = 0;
while ((op = getopt(argc, argv, "adfst:v")) != -1) {
while ((op = getopt(argc, argv, "adfst:v")) != -1)
switch (op) {
case 'a':
++aflag;
@ -175,16 +175,16 @@ main(int argc, char *argv[])
usage();
/* NOTREACHED */
}
}
ifname = argv[optind++];
hostname = ifname ? argv[optind] : NULL;
argc -= optind;
argv += optind;
ifname = (aflag == 0) ? argv[0] : NULL;
hostname = ifname ? argv[1] : argv[0];
if ((aflag && ifname) || (!aflag && ifname == NULL))
usage();
if (aflag)
init(NULL);
else
init(ifname);
init(ifname);
if (!fflag) {
if (daemon(0,0)) {
@ -308,7 +308,9 @@ init(char *target)
static void
usage(void)
{
(void)fprintf(stderr, "usage: rarpd [-adfsv] [-t directory] [interface]\n");
(void)fprintf(stderr, "%s\n%s\n",
"usage: rarpd -a [-dfsv] [-t directory]",
" rarpd [-dfsv] [-t directory] interface");
exit(1);
}