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Cleanup shutdown command, make reboot a symlink to shutdown

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
This commit is contained in:
David Oberhollenzer 2018-08-24 10:35:23 +02:00
parent ec6264bad5
commit 2d54b32d24
3 changed files with 39 additions and 56 deletions

View file

@ -24,6 +24,9 @@ if USYSLOGD
include syslogd/Makemodule.am
endif
install-exec-hook:
(cd $(DESTDIR)$(sbindir); $(LN_S) shutdown reboot)
install-data-local:
$(MKDIR_P) $(DESTDIR)$(SVCDIR)
$(LN_S) $(TEMPLATEDIR)/loopback $(DESTDIR)$(SVCDIR)/loopback

View file

@ -1,14 +1,7 @@
shutdown_SOURCES = cmd/shutdown.c
shutdown_CPPFLAGS = $(AM_CPPFLAGS) -DPROGNAME=shutdown
shutdown_CPPFLAGS = $(AM_CPPFLAGS)
shutdown_CFLAGS = $(AM_CFLAGS)
shutdown_LDFLAGS = $(AM_LDFLAGS)
shutdown_LDADD = libinit.a
reboot_SOURCES = cmd/shutdown.c
reboot_CPPFLAGS = $(AM_CPPFLAGS) -DPROGNAME=reboot
reboot_CFLAGS = $(AM_CFLAGS)
reboot_LDFLAGS = $(AM_LDFLAGS)
reboot_LDADD = libinit.a
runsvc_SOURCES = cmd/runsvc/runsvc.c cmd/runsvc/env.c cmd/runsvc/runsvc.h
runsvc_CPPFLAGS = $(AM_CPPFLAGS)
@ -44,5 +37,5 @@ endif
EXTRA_DIST += $(SRVHEADERS)
sbin_PROGRAMS += service reboot shutdown
sbin_PROGRAMS += service shutdown
helper_PROGRAMS += killall5 runsvc

View file

@ -19,19 +19,15 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <stdio.h>
#include <errno.h>
#include <sys/reboot.h>
#include <linux/reboot.h>
#include "telinit.h"
#include "util.h"
#define STRINIFY(x) #x
#define STRINIFY_VALUE(x) STRINIFY(x)
#define PROGRAM_NAME STRINIFY_VALUE(PROGNAME)
#define FL_FORCE 0x01
#define FL_NOSYNC 0x02
@ -48,9 +44,9 @@ static const struct option options[] = {
static const char *shortopt = "hVprfn";
static const char *defact_str = "power-off";
static int defact = TI_SHUTDOWN;
static int defact = RB_POWER_OFF;
static NORETURN void usage(int status)
static NORETURN void usage(const char *progname, int status)
{
fprintf(status == EXIT_SUCCESS ? stdout : stderr,
"%s [OPTIONS...]\n\n"
@ -63,32 +59,34 @@ static NORETURN void usage(int status)
" init system.\n"
" -n, --no-sync Don't sync storage media before power-off or reboot.\n\n"
"If no option is specified, the default action is %s.\n",
PROGRAM_NAME, defact_str);
progname, defact_str);
exit(status);
}
static NORETURN void version(void)
static NORETURN void version(const char *progname)
{
fputs(
PROGRAM_NAME " (Pygos init) " PACKAGE_VERSION "\n"
fprintf(stdout,
"%s (Pygos init) %s\n"
"Copyright (C) 2018 David Oberhollenzer\n"
"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n"
"This is free software: you are free to change and redistribute it.\n"
"There is NO WARRANTY, to the extent permitted by law.\n",
stdout);
progname, PACKAGE_VERSION);
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
int c, fd, flags = 0;
ti_msg_t msg;
ssize_t ret;
int c, ret, flags = 0;
char *ptr;
if (!strcmp(PROGRAM_NAME, "reboot")) {
ptr = strrchr(argv[0], '/');
ptr = (ptr == NULL) ? argv[0] : (ptr + 1);
if (strcmp(ptr, "reboot") == 0) {
defact_str = "reboot";
defact = TI_REBOOT;
defact = RB_AUTOBOOT;
}
while (1) {
@ -104,53 +102,42 @@ int main(int argc, char **argv)
flags |= FL_NOSYNC;
break;
case 'p':
defact = TI_SHUTDOWN;
defact = RB_POWER_OFF;
break;
case 'r':
defact = TI_REBOOT;
defact = RB_AUTOBOOT;
break;
case 'V':
version();
version(ptr);
case 'h':
usage(EXIT_SUCCESS);
usage(ptr, EXIT_SUCCESS);
default:
exit(EXIT_FAILURE);
usage(ptr, EXIT_FAILURE);
}
}
if (flags & FL_FORCE) {
if (!(flags & FL_NOSYNC))
sync();
switch (defact) {
case TI_REBOOT:
reboot(RB_AUTOBOOT);
break;
case TI_SHUTDOWN:
reboot(RB_POWER_OFF);
break;
}
reboot(defact);
perror("reboot system call");
return EXIT_FAILURE;
}
fd = opensock();
if (fd < 0)
return EXIT_FAILURE;
msg.type = defact;
retry:
ret = write(fd, &msg, sizeof(msg));
if (ret < 0) {
if (errno == EINTR)
goto retry;
perror("write on init socket");
close(fd);
return EXIT_FAILURE;
switch (defact) {
case RB_AUTOBOOT:
ret = kill(1, SIGINT);
break;
case RB_POWER_OFF:
ret = kill(1, SIGTERM);
break;
default:
return EXIT_SUCCESS;
}
close(fd);
if (ret) {
perror("sending signal to init");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}