initctl: catch write error, use _cleanup_

[elogind.git] / src / systemctl / systemctl.c

diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index a2dbbe82cd05fffeed2f4b9bd000d6f22ce9d354..84b7c8ee2d9a7716d5fc4dc096f7d4164f5c44b6 100644 (file)
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -136,7 +136,7 @@ static void pager_open_if_enabled(void) {
         if (arg_no_pager)
                 return;
 
-        pager_open();
+        pager_open(false);
 }
 
 static void ask_password_agent_open_if_enabled(void) {
@@ -2084,7 +2084,11 @@ static int get_cgroup_attr(DBusConnection *bus, char **args) {
                 if (r < 0)
                         return r;
 
-                dbus_message_iter_init(reply, &iter);
+                if (!dbus_message_iter_init(reply, &iter)) {
+                        log_error("Failed to initialize iterator.");
+                        return -EIO;
+                }
+
                 r = bus_parse_strv_iter(&iter, &list);
                 if (r < 0) {
                         log_error("Failed to parse value list.");
@@ -2505,23 +2509,15 @@ static void print_status_info(UnitStatusInfo *i) {
 
         if (i->id && arg_transport != TRANSPORT_SSH) {
                 printf("\n");
-                if(arg_scope == UNIT_FILE_SYSTEM)
-                        show_journal_by_unit(stdout,
-                                             i->id,
-                                             arg_output,
-                                             0,
-                                             i->inactive_exit_timestamp_monotonic,
-                                             arg_lines,
-                                             flags);
-                else
-                        show_journal_by_user_unit(stdout,
-                                                  i->id,
-                                                  arg_output,
-                                                  0,
-                                                  i->inactive_exit_timestamp_monotonic,
-                                                  arg_lines,
-                                                  getuid(),
-                                                  flags);
+                show_journal_by_unit(stdout,
+                                     i->id,
+                                     arg_output,
+                                     0,
+                                     i->inactive_exit_timestamp_monotonic,
+                                     arg_lines,
+                                     getuid(),
+                                     flags,
+                                     arg_scope == UNIT_FILE_SYSTEM);
         }
 
         if (i->need_daemon_reload)
@@ -3978,6 +3974,7 @@ static int unit_is_enabled(DBusConnection *bus, char **args) {
         DBusMessage _cleanup_dbus_message_unref_ *reply = NULL;
         bool enabled;
         char **name;
+        char *n;
 
         dbus_error_init(&error);
 
@@ -3992,7 +3989,14 @@ static int unit_is_enabled(DBusConnection *bus, char **args) {
                 STRV_FOREACH(name, args+1) {
                         UnitFileState state;
 
-                        state = unit_file_get_state(arg_scope, arg_root, *name);
+                        n = unit_name_mangle(*name);
+                        if (!n)
+                                return log_oom();
+
+                        state = unit_file_get_state(arg_scope, arg_root, n);
+
+                        free(n);
+
                         if (state < 0)
                                 return state;
 
@@ -4009,6 +4013,10 @@ static int unit_is_enabled(DBusConnection *bus, char **args) {
                 STRV_FOREACH(name, args+1) {
                         const char *s;
 
+                        n = unit_name_mangle(*name);
+                        if (!n)
+                                return log_oom();
+
                         r = bus_method_call_with_reply (
                                         bus,
                                         "org.freedesktop.systemd1",
@@ -4017,8 +4025,11 @@ static int unit_is_enabled(DBusConnection *bus, char **args) {
                                         "GetUnitFileState",
                                         &reply,
                                         NULL,
-                                        DBUS_TYPE_STRING, name,
+                                        DBUS_TYPE_STRING, &n,
                                         DBUS_TYPE_INVALID);
+
+                        free(n);
+
                         if (r)
                                 return r;
 
@@ -5030,21 +5041,22 @@ finish:
 }
 
 static int talk_initctl(void) {
-        struct init_request request;
-        int r, fd;
+        struct init_request request = {0};
+        int r;
+        int _cleanup_close_ fd = -1;
         char rl;
 
-        if (!(rl = action_to_runlevel()))
+        rl = action_to_runlevel();
+        if (!rl)
                 return 0;
 
-        zero(request);
         request.magic = INIT_MAGIC;
         request.sleeptime = 0;
         request.cmd = INIT_CMD_RUNLVL;
         request.runlevel = rl;
 
-        if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
-
+        fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
+        if (fd < 0) {
                 if (errno == ENOENT)
                         return 0;
 
@@ -5054,9 +5066,7 @@ static int talk_initctl(void) {
 
         errno = 0;
         r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
-        close_nointr_nofail(fd);
-
-        if (r < 0) {
+        if (r) {
                 log_error("Failed to write to "INIT_FIFO": %m");
                 return errno ? -errno : -EIO;
         }
@@ -5094,11 +5104,11 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError
                 { "condreload",            MORE,  2, start_unit        }, /* For compatibility with ALTLinux */
                 { "condrestart",           MORE,  2, start_unit        }, /* For compatibility with RH */
                 { "isolate",               EQUAL, 2, start_unit        },
-                { "set-cgroup",            MORE,  2, set_cgroup        },
-                { "unset-cgroup",          MORE,  2, set_cgroup        },
-                { "get-cgroup-attr",       MORE,  2, get_cgroup_attr   },
-                { "set-cgroup-attr",       MORE,  2, set_cgroup_attr   },
-                { "unset-cgroup-attr",     MORE,  2, set_cgroup        },
+                { "set-cgroup",            MORE,  3, set_cgroup        },
+                { "unset-cgroup",          MORE,  3, set_cgroup        },
+                { "get-cgroup-attr",       MORE,  3, get_cgroup_attr   },
+                { "set-cgroup-attr",       MORE,  4, set_cgroup_attr   },
+                { "unset-cgroup-attr",     MORE,  3, set_cgroup        },
                 { "kill",                  MORE,  2, kill_unit         },
                 { "is-active",             MORE,  2, check_unit_active },
                 { "check",                 MORE,  2, check_unit_active },