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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-18 20:31:21 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-18 20:58:39 -0400
commit4654e558a3c297a71f05c3b2db6a2744fcf3cdea (patch)
tree5d99930b723aa2fa568cb6e117dce4106b39a57c /src/login/loginctl.c
parentce0fc5f5f6debc6e37ac3ab0a3ea1c9c35b3ed99 (diff)
logind: exploit previous cleanups and simplify returns
Diffstat (limited to 'src/login/loginctl.c')
-rw-r--r--src/login/loginctl.c263
1 files changed, 121 insertions, 142 deletions
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index 387095361d..6c229c64e3 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -89,14 +89,13 @@ static int list_sessions(DBusConnection *bus, char **args, unsigned n) {
NULL,
DBUS_TYPE_INVALID);
if (r)
- goto finish;
+ return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
dbus_message_iter_recurse(&iter, &sub);
@@ -110,8 +109,7 @@ static int list_sessions(DBusConnection *bus, char **args, unsigned n) {
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
dbus_message_iter_recurse(&sub, &sub2);
@@ -122,8 +120,7 @@ static int list_sessions(DBusConnection *bus, char **args, unsigned n) {
bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &seat, true) < 0 ||
bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
printf("%10s %10u %-16s %-16s\n", id, (unsigned) uid, user, seat);
@@ -136,10 +133,7 @@ static int list_sessions(DBusConnection *bus, char **args, unsigned n) {
if (on_tty())
printf("\n%u sessions listed.\n", k);
- r = 0;
-
-finish:
- return r;
+ return 0;
}
static int list_users(DBusConnection *bus, char **args, unsigned n) {
@@ -160,14 +154,13 @@ static int list_users(DBusConnection *bus, char **args, unsigned n) {
NULL,
DBUS_TYPE_INVALID);
if (r)
- goto finish;
+ return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
dbus_message_iter_recurse(&iter, &sub);
@@ -181,8 +174,7 @@ static int list_users(DBusConnection *bus, char **args, unsigned n) {
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
dbus_message_iter_recurse(&sub, &sub2);
@@ -191,8 +183,7 @@ static int list_users(DBusConnection *bus, char **args, unsigned n) {
bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &user, true) < 0 ||
bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
printf("%10u %-16s\n", (unsigned) uid, user);
@@ -205,10 +196,7 @@ static int list_users(DBusConnection *bus, char **args, unsigned n) {
if (on_tty())
printf("\n%u users listed.\n", k);
- r = 0;
-
-finish:
- return r;
+ return 0;
}
static int list_seats(DBusConnection *bus, char **args, unsigned n) {
@@ -229,14 +217,13 @@ static int list_seats(DBusConnection *bus, char **args, unsigned n) {
NULL,
DBUS_TYPE_INVALID);
if (r)
- goto finish;
+ return r;
if (!dbus_message_iter_init(reply, &iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
dbus_message_iter_recurse(&iter, &sub);
@@ -249,8 +236,7 @@ static int list_seats(DBusConnection *bus, char **args, unsigned n) {
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
dbus_message_iter_recurse(&sub, &sub2);
@@ -258,8 +244,7 @@ static int list_seats(DBusConnection *bus, char **args, unsigned n) {
if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &seat, true) < 0 ||
bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ return -EIO;
}
printf("%-16s\n", seat);
@@ -272,10 +257,7 @@ static int list_seats(DBusConnection *bus, char **args, unsigned n) {
if (on_tty())
printf("\n%u seats listed.\n", k);
- r = 0;
-
-finish:
- return r;
+ return 0;
}
typedef struct SessionStatusInfo {
@@ -1077,7 +1059,6 @@ finish:
}
static int kill_session(DBusConnection *bus, char **args, unsigned n) {
- int ret = 0;
unsigned i;
assert(args);
@@ -1086,28 +1067,28 @@ static int kill_session(DBusConnection *bus, char **args, unsigned n) {
arg_kill_who = "all";
for (i = 1; i < n; i++) {
- ret = bus_method_call_with_reply (
- bus,
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "KillSession",
- NULL,
- NULL,
- DBUS_TYPE_STRING, &args[i],
- DBUS_TYPE_STRING, &arg_kill_who,
- DBUS_TYPE_INT32, &arg_signal,
- DBUS_TYPE_INVALID);
- if (ret)
- goto finish;
+ int r;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "KillSession",
+ NULL,
+ NULL,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_STRING, &arg_kill_who,
+ DBUS_TYPE_INT32, &arg_signal,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
}
-finish:
- return ret;
+ return 0;
}
static int enable_linger(DBusConnection *bus, char **args, unsigned n) {
- int ret = 0;
unsigned i;
dbus_bool_t b, interactive = true;
@@ -1120,36 +1101,35 @@ static int enable_linger(DBusConnection *bus, char **args, unsigned n) {
for (i = 1; i < n; i++) {
uint32_t u;
uid_t uid;
+ int r;
- ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL, NULL);
- if (ret < 0) {
- log_error("Failed to resolve user %s: %s", args[i], strerror(-ret));
- goto finish;
+ r = get_user_creds((const char**) (args+i), &uid, NULL, NULL, NULL);
+ if (r < 0) {
+ log_error("Failed to resolve user %s: %s", args[i], strerror(-r));
+ return r;
}
u = (uint32_t) uid;
- ret = bus_method_call_with_reply (
- bus,
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "SetUserLinger",
- NULL,
- NULL,
- DBUS_TYPE_UINT32, &u,
- DBUS_TYPE_BOOLEAN, &b,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID);
- if (ret)
- goto finish;
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "SetUserLinger",
+ NULL,
+ NULL,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
}
-finish:
- return ret;
+ return 0;
}
static int terminate_user(DBusConnection *bus, char **args, unsigned n) {
- int ret = 0;
unsigned i;
assert(args);
@@ -1157,34 +1137,33 @@ static int terminate_user(DBusConnection *bus, char **args, unsigned n) {
for (i = 1; i < n; i++) {
uint32_t u;
uid_t uid;
+ int r;
- ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL, NULL);
- if (ret < 0) {
- log_error("Failed to look up user %s: %s", args[i], strerror(-ret));
- goto finish;
+ r = get_user_creds((const char**) (args+i), &uid, NULL, NULL, NULL);
+ if (r < 0) {
+ log_error("Failed to look up user %s: %s", args[i], strerror(-r));
+ return r;
}
u = (uint32_t) uid;
- ret = bus_method_call_with_reply (
- bus,
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "TerminateUser",
- NULL,
- NULL,
- DBUS_TYPE_UINT32, &u,
- DBUS_TYPE_INVALID);
- if (ret)
- goto finish;
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "TerminateUser",
+ NULL,
+ NULL,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
}
-finish:
- return ret;
+ return 0;
}
static int kill_user(DBusConnection *bus, char **args, unsigned n) {
- int ret = 0;
unsigned i;
assert(args);
@@ -1195,35 +1174,34 @@ static int kill_user(DBusConnection *bus, char **args, unsigned n) {
for (i = 1; i < n; i++) {
uid_t uid;
uint32_t u;
+ int r;
- ret = get_user_creds((const char**) (args+i), &uid, NULL, NULL, NULL);
- if (ret < 0) {
- log_error("Failed to look up user %s: %s", args[i], strerror(-ret));
- goto finish;
+ r = get_user_creds((const char**) (args+i), &uid, NULL, NULL, NULL);
+ if (r < 0) {
+ log_error("Failed to look up user %s: %s", args[i], strerror(-r));
+ return r;
}
u = (uint32_t) uid;
- ret = bus_method_call_with_reply (
- bus,
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "KillUser",
- NULL,
- NULL,
- DBUS_TYPE_UINT32, &u,
- DBUS_TYPE_INT32, &arg_signal,
- DBUS_TYPE_INVALID);
- if (ret)
- goto finish;
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "KillUser",
+ NULL,
+ NULL,
+ DBUS_TYPE_UINT32, &u,
+ DBUS_TYPE_INT32, &arg_signal,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
}
-finish:
- return ret;
+ return 0;
}
static int attach(DBusConnection *bus, char **args, unsigned n) {
- int ret = 0;
unsigned i;
dbus_bool_t interactive = true;
@@ -1232,24 +1210,25 @@ static int attach(DBusConnection *bus, char **args, unsigned n) {
polkit_agent_open_if_enabled();
for (i = 2; i < n; i++) {
- ret = bus_method_call_with_reply (
- bus,
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "AttachDevice",
- NULL,
- NULL,
- DBUS_TYPE_STRING, &args[1],
- DBUS_TYPE_STRING, &args[i],
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID);
- if (ret)
- goto finish;
+ int r;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "AttachDevice",
+ NULL,
+ NULL,
+ DBUS_TYPE_STRING, &args[1],
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
}
-finish:
- return ret;
+ return 0;
}
static int flush_devices(DBusConnection *bus, char **args, unsigned n) {
@@ -1288,28 +1267,28 @@ static int lock_sessions(DBusConnection *bus, char **args, unsigned n) {
}
static int terminate_seat(DBusConnection *bus, char **args, unsigned n) {
- int ret = 0;
unsigned i;
assert(args);
for (i = 1; i < n; i++) {
- ret = bus_method_call_with_reply (
- bus,
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "TerminateSeat",
- NULL,
- NULL,
- DBUS_TYPE_STRING, &args[i],
- DBUS_TYPE_INVALID);
- if (ret)
- goto finish;
+ int r;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "TerminateSeat",
+ NULL,
+ NULL,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID);
+ if (r)
+ return r;
}
-finish:
- return ret;
+ return 0;
}
static int help(void) {