systemctl: rework exit codes for all utility programs to follow LSB or other standards

This commit is contained in:
Lennart Poettering 2010-08-31 21:05:54 +02:00
parent f73e33d9ec
commit 22f4096ca9
14 changed files with 172 additions and 164 deletions

6
fixme
View File

@ -78,11 +78,7 @@ v9:
* MTA IS KAPUTT
* kill-mode=cgroup muss auch die mainpid killen! https://bugzilla.redhat.com/show_bug.cgi?id=626477
* follow LSB exit codes spec in "systemctl start"
* systemctl wrapping https://bugzilla.redhat.com/show_bug.cgi?id=626891 https://bugzilla.redhat.com/show_bug.cgi?id=626443
* fix terminal setup
External:

View File

@ -72,7 +72,7 @@ static int parse_argv(int argc, char *argv[]) {
}
int main(int argc, char *argv[]) {
int r = 0, retval = 1;
int r = 0, retval = EXIT_FAILURE;
log_parse_environment();
log_open();
@ -80,7 +80,7 @@ int main(int argc, char *argv[]) {
if ((r = parse_argv(argc, argv)) < 0)
goto finish;
else if (r == 0) {
retval = 0;
retval = EXIT_SUCCESS;
goto finish;
}
@ -115,7 +115,7 @@ int main(int argc, char *argv[]) {
if (r < 0)
log_error("Failed to list cgroup tree: %s", strerror(-r));
retval = 0;
retval = EXIT_SUCCESS;
finish:

View File

@ -21,6 +21,8 @@
#include <dbus/dbus.h>
#include <stdlib.h>
#include "log.h"
#include "dbus-common.h"
@ -28,7 +30,7 @@ int main(int argc, char *argv[]) {
DBusError error;
DBusConnection *bus = NULL;
DBusMessage *m = NULL;
int r = 1;
int r = EXIT_FAILURE;
dbus_error_init(&error);
@ -76,7 +78,7 @@ int main(int argc, char *argv[]) {
goto finish;
}
r = 0;
r = EXIT_SUCCESS;
finish:
if (bus) {

View File

@ -335,16 +335,16 @@ static int process_event(Server *s, struct epoll_event *ev) {
int main(int argc, char *argv[]) {
Server server;
int r = 3, n;
int r = EXIT_FAILURE, n;
if (getppid() != 1) {
log_error("This program should be invoked by init only.");
return 1;
return EXIT_FAILURE;
}
if (argc > 1) {
log_error("This program does not take arguments.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -353,16 +353,16 @@ int main(int argc, char *argv[]) {
if ((n = sd_listen_fds(true)) < 0) {
log_error("Failed to read listening file descriptors from environment: %s", strerror(-r));
return 1;
return EXIT_FAILURE;
}
if (n <= 0 || n > SERVER_FD_MAX) {
log_error("No or too many file descriptors passed.");
return 2;
return EXIT_FAILURE;
}
if (server_init(&server, (unsigned) n) < 0)
return 2;
return EXIT_FAILURE;
log_debug("systemd-initctl running as pid %lu", (unsigned long) getpid());
@ -392,7 +392,7 @@ int main(int argc, char *argv[]) {
goto fail;
}
r = 0;
r = EXIT_SUCCESS;
log_debug("systemd-initctl stopped as pid %lu", (unsigned long) getpid());

View File

@ -473,16 +473,16 @@ static int process_event(Server *s, struct epoll_event *ev) {
int main(int argc, char *argv[]) {
Server server;
int r = 3, n;
int r = EXIT_FAILURE, n;
if (getppid() != 1) {
log_error("This program should be invoked by init only.");
return 1;
return EXIT_FAILURE;
}
if (argc > 1) {
log_error("This program does not take arguments.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_KMSG);
@ -491,16 +491,16 @@ int main(int argc, char *argv[]) {
if ((n = sd_listen_fds(true)) < 0) {
log_error("Failed to read listening file descriptors from environment: %s", strerror(-r));
return 1;
return EXIT_FAILURE;
}
if (n <= 0 || n > SERVER_FD_MAX) {
log_error("No or too many file descriptors passed.");
return 2;
return EXIT_FAILURE;
}
if (server_init(&server, (unsigned) n) < 0)
return 3;
return EXIT_FAILURE;
log_debug("systemd-kmsg-syslogd running as pid %lu", (unsigned long) getpid());
@ -531,7 +531,7 @@ int main(int argc, char *argv[]) {
break;
}
r = 0;
r = EXIT_SUCCESS;
log_debug("systemd-kmsg-syslogd stopped as pid %lu", (unsigned long) getpid());

View File

@ -557,16 +557,16 @@ static int process_event(Server *s, struct epoll_event *ev) {
int main(int argc, char *argv[]) {
Server server;
int r = 3, n;
int r = EXIT_FAILURE, n;
if (getppid() != 1) {
log_error("This program should be invoked by init only.");
return 1;
return EXIT_FAILURE;
}
if (argc > 1) {
log_error("This program does not take arguments.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -575,16 +575,16 @@ int main(int argc, char *argv[]) {
if ((n = sd_listen_fds(true)) < 0) {
log_error("Failed to read listening file descriptors from environment: %s", strerror(-r));
return 1;
return EXIT_FAILURE;
}
if (n <= 0 || n > SERVER_FD_MAX) {
log_error("No or too many file descriptors passed.");
return 2;
return EXIT_FAILURE;
}
if (server_init(&server, (unsigned) n) < 0)
return 3;
return EXIT_FAILURE;
log_debug("systemd-logger running as pid %lu", (unsigned long) getpid());
@ -614,7 +614,7 @@ int main(int argc, char *argv[]) {
goto fail;
}
r = 0;
r = EXIT_SUCCESS;
log_debug("systemd-logger stopped as pid %lu", (unsigned long) getpid());

View File

@ -876,7 +876,7 @@ fail:
int main(int argc, char *argv[]) {
Manager *m = NULL;
int r, retval = 1;
int r, retval = EXIT_FAILURE;
FDSet *fds = NULL;
bool reexecute = false;
@ -937,10 +937,10 @@ int main(int argc, char *argv[]) {
goto finish;
} else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
unit_dump_config_items(stdout);
retval = 0;
retval = EXIT_SUCCESS;
goto finish;
} else if (arg_action == ACTION_DONE) {
retval = 0;
retval = EXIT_SUCCESS;
goto finish;
}
@ -1072,7 +1072,7 @@ int main(int argc, char *argv[]) {
if (arg_action == ACTION_TEST) {
printf("-> By jobs:\n");
manager_dump_jobs(m, stdout, "\t");
retval = 0;
retval = EXIT_SUCCESS;
goto finish;
}
}
@ -1086,7 +1086,7 @@ int main(int argc, char *argv[]) {
switch (m->exit_code) {
case MANAGER_EXIT:
retval = 0;
retval = EXIT_SUCCESS;
log_debug("Exit.");
goto finish;

View File

@ -51,13 +51,13 @@ static int scandir_filter(const struct dirent *d) {
int main(int argc, char *argv[]) {
struct dirent **de = NULL;
int r = 1, n, i;
int r = EXIT_FAILURE, n, i;
char **arguments = NULL;
unsigned n_arguments = 0, n_allocated = 0;
if (argc > 1) {
log_error("This program takes no argument.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -74,14 +74,14 @@ int main(int argc, char *argv[]) {
if ((n = scandir("/etc/modules.d/", &de, scandir_filter, alphasort)) < 0) {
if (errno == ENOENT)
r = 0;
r = EXIT_SUCCESS;
else
log_error("Failed to enumerate /etc/modules.d/ files: %m");
goto finish;
}
r = 0;
r = EXIT_SUCCESS;
for (i = 0; i < n; i++) {
int k;
@ -93,7 +93,7 @@ int main(int argc, char *argv[]) {
if (k < 0) {
log_error("Failed to allocate file name.");
r = 1;
r = EXIT_FAILURE;
continue;
}
@ -102,7 +102,7 @@ int main(int argc, char *argv[]) {
if (!f) {
log_error("Failed to open %s: %m", fn);
r = 1;
r = EXIT_FAILURE;
continue;
}
@ -130,7 +130,7 @@ int main(int argc, char *argv[]) {
if (!(a = realloc(arguments, sizeof(char*) * (m+1)))) {
log_error("Failed to increase module array size.");
free(t);
r = 1;
r = EXIT_FAILURE;
continue;
}
@ -142,7 +142,7 @@ int main(int argc, char *argv[]) {
}
if (ferror(f)) {
r = 1;
r = EXIT_FAILURE;
log_error("Failed to read from file: %m");
}
@ -158,7 +158,7 @@ finish:
execv("/sbin/modprobe", arguments);
log_error("Failed to execute /sbin/modprobe: %m");
r = 1;
r = EXIT_FAILURE;
}
strv_free(arguments);

View File

@ -131,13 +131,13 @@ int main(int argc, char* argv[]) {
char* our_env[4], **final_env = NULL;
unsigned i = 0;
char *status = NULL, *cpid = NULL, *n = NULL;
int r, retval = 1;
int r, retval = EXIT_FAILURE;
log_parse_environment();
log_open();
if ((r = parse_argv(argc, argv)) <= 0) {
retval = r < 0;
retval = r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
goto finish;
}
@ -173,7 +173,7 @@ int main(int argc, char* argv[]) {
}
if (strv_length(final_env) <= 0) {
retval = 0;
retval = EXIT_SUCCESS;
goto finish;
}
@ -187,7 +187,7 @@ int main(int argc, char* argv[]) {
goto finish;
}
retval = r <= 0;
retval = r <= 0 ? EXIT_FAILURE : EXIT_SUCCESS;
finish:
free(status);

View File

@ -32,7 +32,7 @@
int main(int argc, char *argv[]) {
int seed_fd = -1, random_fd = -1;
int ret = 1;
int ret = EXIT_FAILURE;
void* buf;
size_t buf_size = 0;
ssize_t r;
@ -40,7 +40,7 @@ int main(int argc, char *argv[]) {
if (argc != 2) {
log_error("This program requires one argument.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -119,7 +119,7 @@ int main(int argc, char *argv[]) {
log_error("Failed to write new random seed file: %s", r < 0 ? strerror(errno) : "short write");
}
ret = 0;
ret = EXIT_SUCCESS;
finish:
if (random_fd >= 0)

View File

@ -37,14 +37,14 @@
* respected */
int main(int argc, char *argv[]) {
int ret = 1;
int ret = EXIT_FAILURE;
FILE *f = NULL;
struct mntent* me;
Hashmap *pids = NULL;
if (argc > 1) {
log_error("This program takes no argument.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -61,7 +61,7 @@ int main(int argc, char *argv[]) {
goto finish;
}
ret = 0;
ret = EXIT_SUCCESS;
while ((me = getmntent(f))) {
pid_t pid;
@ -92,7 +92,7 @@ int main(int argc, char *argv[]) {
execv("/bin/mount", (char **) arguments);
log_error("Failed to execute /bin/mount: %m");
_exit(1);
_exit(EXIT_FAILURE);
}
/* Parent */
@ -101,7 +101,7 @@ int main(int argc, char *argv[]) {
if ((k = hashmap_put(pids, UINT_TO_PTR(pid), s)) < 0) {
log_error("Failed to add PID to set: %s", strerror(-k));
ret = 1;
ret = EXIT_FAILURE;
continue;
}
}
@ -117,7 +117,7 @@ int main(int argc, char *argv[]) {
continue;
log_error("waitid() failed: %m");
ret = 1;
ret = EXIT_FAILURE;
break;
}
@ -128,7 +128,7 @@ int main(int argc, char *argv[]) {
else
log_error("/bin/mount for %s terminated by signal %s.", s, signal_to_string(si.si_status));
ret = 1;
ret = EXIT_FAILURE;
}
free(s);

View File

@ -176,7 +176,7 @@ int main(int argc, char *argv[]) {
_FD_MAX
};
int r = 4, n_fds;
int r = EXIT_FAILURE, n_fds;
int one = 1;
struct shutdownd_command c;
struct pollfd pollfd[_FD_MAX];
@ -185,12 +185,12 @@ int main(int argc, char *argv[]) {
if (getppid() != 1) {
log_error("This program should be invoked by init only.");
return 1;
return EXIT_FAILURE;
}
if (argc > 1) {
log_error("This program does not take arguments.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -199,17 +199,17 @@ int main(int argc, char *argv[]) {
if ((n_fds = sd_listen_fds(true)) < 0) {
log_error("Failed to read listening file descriptors from environment: %s", strerror(-r));
return 1;
return EXIT_FAILURE;
}
if (n_fds != 1) {
log_error("Need exactly one file descriptor.");
return 2;
return EXIT_FAILURE;
}
if (setsockopt(SD_LISTEN_FDS_START, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) {
log_error("SO_PASSCRED failed: %m");
return 3;
return EXIT_FAILURE;
}
zero(c);
@ -335,7 +335,7 @@ int main(int argc, char *argv[]) {
} while (c.elapse > 0);
r = 0;
r = EXIT_SUCCESS;
log_debug("systemd-shutdownd stopped as pid %lu", (unsigned long) getpid());

View File

@ -51,6 +51,7 @@
#include "sd-daemon.h"
#include "shutdownd.h"
#include "exit-status.h"
#include "bus-errors.h"
static const char *arg_type = NULL;
static char **arg_property = NULL;
@ -69,11 +70,6 @@ static bool arg_quiet = false;
static bool arg_full = false;
static bool arg_force = false;
static bool arg_defaults = false;
static bool arg_sysv_compat = false; /* this is undocumented, and
* exists simply to make
* implementation of SysV
* compatible shell glue
* easier */
static char **arg_wall = NULL;
static usec_t arg_when = 0;
static enum action {
@ -145,6 +141,34 @@ static bool error_is_no_service(const DBusError *error) {
return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
}
static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
assert(error);
if (!dbus_error_is_set(error))
return r;
if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
return EXIT_NOPERMISSION;
if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
return EXIT_NOTINSTALLED;
if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
return EXIT_NOTIMPLEMENTED;
if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
return EXIT_NOTCONFIGURED;
if (r != 0)
return r;
return EXIT_FAILURE;
}
static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
assert(iter);
@ -1072,10 +1096,10 @@ static int start_unit_one(
const char *method,
const char *name,
const char *mode,
DBusError *error,
Set *s) {
DBusMessage *m = NULL, *reply = NULL;
DBusError error;
const char *path;
int r;
@ -1083,10 +1107,9 @@ static int start_unit_one(
assert(method);
assert(name);
assert(mode);
assert(error);
assert(arg_no_block || s);
dbus_error_init(&error);
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
@ -1106,24 +1129,24 @@ static int start_unit_one(
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
/* There's always a fallback possible for
* legacy actions. */
r = 0;
goto finish;
}
log_error("Failed to issue method call: %s", bus_error_message(&error));
log_error("Failed to issue method call: %s", bus_error_message(error));
r = -EIO;
goto finish;
}
if (!dbus_message_get_args(reply, &error,
if (!dbus_message_get_args(reply, error,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
log_error("Failed to parse reply: %s", bus_error_message(&error));
log_error("Failed to parse reply: %s", bus_error_message(error));
r = -EIO;
goto finish;
}
@ -1150,6 +1173,10 @@ static int start_unit_one(
r = 1;
/* Returns 1 if we managed to issue the request, and 0 if we
* failed due to systemd not being around. This is then used
* as indication to try a fallback mechanism. */
finish:
if (m)
dbus_message_unref(m);
@ -1157,8 +1184,6 @@ finish:
if (reply)
dbus_message_unref(reply);
dbus_error_free(&error);
return r;
}
@ -1194,10 +1219,13 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) {
[ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
};
int r;
int r, ret = 0;
unsigned i;
const char *method, *mode, *one_name;
Set *s = NULL;
DBusError error;
dbus_error_init(&error);
assert(bus);
@ -1235,40 +1263,47 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) {
}
if (!arg_no_block) {
if ((r = enable_wait_for_jobs(bus)) < 0) {
log_error("Could not watch jobs: %s", strerror(-r));
if ((ret = enable_wait_for_jobs(bus)) < 0) {
log_error("Could not watch jobs: %s", strerror(-ret));
goto finish;
}
if (!(s = set_new(string_hash_func, string_compare_func))) {
log_error("Failed to allocate set.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
}
r = 0;
if (one_name) {
if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
goto finish;
} else {
for (i = 1; i < n; i++)
if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
goto finish;
if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
if (r > 0)
ret = r;
else
ret = translate_bus_error_to_exit_status(r, &error);
dbus_error_free(&error);
}
}
if (!arg_no_block)
if ((r = wait_for_jobs(bus, s)) < 0)
if ((r = wait_for_jobs(bus, s)) < 0) {
ret = r;
goto finish;
r = 1;
}
finish:
if (s)
set_free_free(s);
return r;
dbus_error_free(&error);
return ret;
}
static int start_special(DBusConnection *bus, char **args, unsigned n) {
@ -1290,7 +1325,7 @@ static int check_unit(DBusConnection *bus, char **args, unsigned n) {
const char
*interface = "org.freedesktop.systemd1.Unit",
*property = "ActiveState";
int r = -EADDRNOTAVAIL;
int r = 3; /* According to LSB: "program is not running" */
DBusError error;
unsigned i;
@ -2213,19 +2248,13 @@ static int show_one(DBusConnection *bus, const char *path, bool show_properties,
r = 0;
if (!show_properties) {
if (arg_sysv_compat &&
!streq_ptr(info.active_state, "active") &&
!streq_ptr(info.active_state, "reloading")) {
if (!show_properties)
print_status_info(&info);
/* If the SysV compatibility mode is on, we
* will refuse to run "status" on units that
* aren't active */
log_error("Unit not active.");
r = -EADDRNOTAVAIL;
} else
print_status_info(&info);
}
if (!streq_ptr(info.active_state, "active") &&
!streq_ptr(info.active_state, "reloading"))
/* According to LSB: "program not running" */
r = 3;
while ((p = info.exec)) {
LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
@ -2246,7 +2275,7 @@ finish:
static int show(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
int r;
int r, ret = 0;
DBusError error;
unsigned i;
bool show_properties, new_line = false;
@ -2262,7 +2291,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
/* If not argument is specified inspect the manager
* itself */
r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
goto finish;
}
@ -2280,7 +2309,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"LoadUnit"))) {
log_error("Could not allocate message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
@ -2288,7 +2317,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_STRING, &args[i],
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
@ -2296,7 +2325,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
r = -EIO;
ret = -EIO;
goto finish;
}
@ -2309,7 +2338,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"GetUnit"))) {
log_error("Could not allocate message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
@ -2317,13 +2346,17 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_STRING, &args[i],
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
r = -EIO;
if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
ret = 4; /* According to LSB: "program or service status is unknown" */
else
ret = -EIO;
goto finish;
}
}
@ -2338,7 +2371,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"GetJob"))) {
log_error("Could not allocate message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
@ -2346,13 +2379,13 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
r = -EIO;
ret = -EIO;
goto finish;
}
} else {
@ -2365,7 +2398,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"GetUnitByPID"))) {
log_error("Could not allocate message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
@ -2373,13 +2406,13 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
ret = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
r = -EIO;
ret = -EIO;
goto finish;
}
}
@ -2388,20 +2421,18 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
log_error("Failed to parse reply: %s", bus_error_message(&error));
r = -EIO;
ret = -EIO;
goto finish;
}
if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
goto finish;
if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
ret = r;
dbus_message_unref(m);
dbus_message_unref(reply);
m = reply = NULL;
}
r = 0;
finish:
if (m)
dbus_message_unref(m);
@ -2411,7 +2442,7 @@ finish:
dbus_error_free(&error);
return r;
return ret;
}
static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
@ -3967,8 +3998,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
ARG_FULL,
ARG_FORCE,
ARG_NO_RELOAD,
ARG_DEFAULTS,
ARG_SYSV_COMPAT
ARG_DEFAULTS
};
static const struct option options[] = {
@ -3989,7 +4019,6 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
{ "force", no_argument, NULL, ARG_FORCE },
{ "no-reload", no_argument, NULL, ARG_NO_RELOAD },
{ "defaults", no_argument, NULL, ARG_DEFAULTS },
{ "sysv-compat", no_argument, NULL, ARG_SYSV_COMPAT },
{ NULL, 0, NULL, 0 }
};
@ -4083,10 +4112,6 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
arg_defaults = true;
break;
case ARG_SYSV_COMPAT:
arg_sysv_compat = true;
break;
case '?':
return -EINVAL;
@ -4781,11 +4806,6 @@ static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
struct msghdr msghdr;
struct iovec iovec;
union sockaddr_union sockaddr;
struct ucred *ucred;
union {
struct cmsghdr cmsghdr;
uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
} control;
struct shutdownd_command c;
zero(c);
@ -4808,24 +4828,12 @@ static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
iovec.iov_base = (char*) &c;
iovec.iov_len = sizeof(c);
zero(control);
control.cmsghdr.cmsg_level = SOL_SOCKET;
control.cmsghdr.cmsg_type = SCM_CREDENTIALS;
control.cmsghdr.cmsg_len = CMSG_LEN(sizeof(struct ucred));
ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
ucred->pid = getpid();
ucred->uid = getuid();
ucred->gid = getgid();
zero(msghdr);
msghdr.msg_name = &sockaddr;
msghdr.msg_namelen = sizeof(sa_family_t) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
msghdr.msg_iov = &iovec;
msghdr.msg_iovlen = 1;
msghdr.msg_control = &control;
msghdr.msg_controllen = control.cmsghdr.cmsg_len;
if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
close_nointr_nofail(fd);
@ -4972,7 +4980,7 @@ static int runlevel_main(void) {
}
int main(int argc, char*argv[]) {
int r, retval = 1;
int r, retval = EXIT_FAILURE;
DBusConnection *bus = NULL;
DBusError error;
@ -4984,14 +4992,15 @@ int main(int argc, char*argv[]) {
if ((r = parse_argv(argc, argv)) < 0)
goto finish;
else if (r == 0) {
retval = 0;
retval = EXIT_SUCCESS;
goto finish;
}
/* /sbin/runlevel doesn't need to communicate via D-Bus, so
* let's shortcut this */
if (arg_action == ACTION_RUNLEVEL) {
retval = runlevel_main() < 0;
r = runlevel_main();
retval = r < 0 ? EXIT_FAILURE : r;
goto finish;
}
@ -4999,15 +5008,14 @@ int main(int argc, char*argv[]) {
switch (arg_action) {
case ACTION_SYSTEMCTL: {
retval = systemctl_main(bus, argc, argv, &error) < 0;
case ACTION_SYSTEMCTL:
r = systemctl_main(bus, argc, argv, &error);
break;
}
case ACTION_HALT:
case ACTION_POWEROFF:
case ACTION_REBOOT:
retval = halt_main(bus) < 0;
r = halt_main(bus);
break;
case ACTION_RUNLEVEL2:
@ -5017,16 +5025,16 @@ int main(int argc, char*argv[]) {
case ACTION_RESCUE:
case ACTION_EMERGENCY:
case ACTION_DEFAULT:
retval = start_with_fallback(bus) < 0;
r = start_with_fallback(bus);
break;
case ACTION_RELOAD:
case ACTION_REEXEC:
retval = reload_with_fallback(bus) < 0;
r = reload_with_fallback(bus);
break;
case ACTION_CANCEL_SHUTDOWN:
retval = send_shutdownd(0, 0, false, NULL) < 0;
r = send_shutdownd(0, 0, false, NULL);
break;
case ACTION_INVALID:
@ -5035,6 +5043,8 @@ int main(int argc, char*argv[]) {
assert_not_reached("Unknown action");
}
retval = r < 0 ? EXIT_FAILURE : r;
finish:
if (bus) {

View File

@ -361,12 +361,12 @@ int main(int argc, char *argv[]) {
if (getppid() != 1) {
log_error("This program should be invoked by init only.");
return 1;
return EXIT_FAILURE;
}
if (argc != 2) {
log_error("This program requires one argument.");
return 1;
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
@ -413,5 +413,5 @@ finish:
dbus_error_free(&error);
dbus_shutdown();
return r < 0 ? 1 : 0;
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}