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openrc-shutdown: add --single option and clean up option processing

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This commit is contained in:
William Hubbs
2017-06-05 15:49:22 -05:00
parent 1801561c2d
commit ee886c4482
1 changed files with 12 additions and 4 deletions
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16
src/rc/openrc-shutdown.c
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@@ -37,7 +37,7 @@
const char *applet = NULL;
const char *extraopts = NULL;
const char *getoptstring = "dDHKpRrw" getoptstring_COMMON;
const char *getoptstring = "dDHKpRrsw" getoptstring_COMMON;
const struct option longopts[] = {
{ "no-write", no_argument, NULL, 'd'},
{ "dry-run", no_argument, NULL, 'D'},
@@ -46,6 +46,7 @@ const struct option longopts[] = {
{ "poweroff", no_argument, NULL, 'p'},
{ "reexec", no_argument, NULL, 'R'},
{ "reboot", no_argument, NULL, 'r'},
{ "single", no_argument, NULL, 's'},
{ "write-only", no_argument, NULL, 'w'},
longopts_COMMON
};
@@ -57,12 +58,13 @@ const char * const longopts_help[] = {
"power off the system",
"re-execute init (use after upgrading)",
"reboot the system",
"single user mode",
"write wtmp boot record and exit",
longopts_help_COMMON
};
const char *usagestring = NULL;
const char *exclusive = "Select one of "
"--halt, --kexec, --poweroff, --reexec or --reboot";
"--halt, --kexec, --poweroff, --reexec, --reboot, --single or --write-only";
static bool do_dryrun = false;
static bool do_halt = false;
@@ -70,6 +72,7 @@ static bool do_kexec = false;
static bool do_poweroff = false;
static bool do_reboot = false;
static bool do_reexec = false;
static bool do_single = false;
static bool do_wtmp = true;
static bool do_wtmp_only = false;
@@ -132,15 +135,20 @@ int main(int argc, char **argv)
do_reboot = true;
cmd_count++;
break;
case 's':
do_single = true;
cmd_count++;
break;
case 'w':
do_wtmp_only = true;
cmd_count++;
break;
case_RC_COMMON_GETOPT
}
}
if (geteuid() != 0 && ! do_dryrun)
eerrorx("%s: you must be root\n", applet);
if (cmd_count > 1) {
if (cmd_count != 1) {
eerror("%s: %s\n", applet, exclusive);
usage(EXIT_FAILURE);
}
@@ -156,7 +164,7 @@ int main(int argc, char **argv)
send_cmd("reexec");
else if (do_wtmp_only)
log_wtmp("shutdown", "~~", 0, RUN_LVL, "~~");
else
else if (do_single)
send_cmd("single");
return 0;
}