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For compatibility with Linux and Solaris add poweroff(8).

Browse Source 
It is implemented as a hard link to shutdown(8) and it is equivalent of:

	# shutdown -p now

While I'm here put one line of usage into one line of C code so it is easier to
grep(1) and separate unrelated code with empty line.

MFC after:	2 weeks
This commit is contained in:
Pawel Jakub Dawidek 2010-12-30 18:06:31 +00:00
parent 4a9ef3f833
commit 6868734cbe
3 changed files with 39 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sbin/shutdown/Makefile
View File

@ -3,6 +3,8 @@
PROG= shutdown
MAN= shutdown.8
LINKS= ${BINDIR}/shutdown ${BINDIR}/poweroff
MLINKS= shutdown.8 poweroff.8
BINOWN= root
BINGRP= operator

13
sbin/shutdown/shutdown.8
View File

@ -28,11 +28,12 @@
.\" @(#)shutdown.8 8.2 (Berkeley) 4/27/95
.\" $FreeBSD$
.\"
.Dd December 23, 2008
.Dd December 30, 2010
.Dt SHUTDOWN 8
.Os
.Sh NAME
.Nm shutdown
.Nm shutdown ,
.Nm poweroff
.Nd "close down the system at a given time"
.Sh SYNOPSIS
.Nm
@ -47,6 +48,7 @@
.Oc
.Ar time
.Op Ar warning-message ...
.Nm poweroff
.Sh DESCRIPTION
The
.Nm
@ -173,6 +175,13 @@ When run without options, the
utility will place the system into single user mode at the
.Ar time
specified.
.Pp
Calling utility as
.Nm poweroff
is equivalent of calling:
.Bd -literal -offset indent
shutdown -p now
.Ed
.Sh FILES
.Bl -tag -width /var/run/nologin -compact
.It Pa /var/run/nologin

28
sbin/shutdown/shutdown.c
View File

@ -115,8 +115,31 @@ main(int argc, char **argv)
if (geteuid())
errx(1, "NOT super-user");
#endif
nosync = NULL;
readstdin = 0;
/*
* Test for the special case where the utility is called as
* "poweroff", for which it runs 'shutdown -p now'.
*/
if ((p = rindex(argv[0], '/')) == NULL)
p = argv[0];
else
++p;
if (strcmp(p, "poweroff") == 0) {
if (getopt(argc, argv, "") != -1)
usage((char *)NULL);
argc -= optind;
argv += optind;
if (argc != 0)
usage((char *)NULL);
dopower = 1;
offset = 0;
(void)time(&shuttime);
goto poweroff;
}
while ((ch = getopt(argc, argv, "-hknopr")) != -1)
switch (ch) {
case '-':
@ -161,6 +184,7 @@ main(int argc, char **argv)
getoffset(*argv++);
poweroff:
if (*argv) {
for (p = mbuf, len = sizeof(mbuf); *argv; ++argv) {
arglen = strlen(*argv);
@ -510,7 +534,7 @@ usage(const char *cp)
if (cp != NULL)
warnx("%s", cp);
(void)fprintf(stderr,
"usage: shutdown [-] [-h | -p | -r | -k] [-o [-n]]"
" time [warning-message ...]\n");
"usage: shutdown [-] [-h | -p | -r | -k] [-o [-n]] time [warning-message ...]\n"
" poweroff\n");
exit(1);
}