src/systemctl/systemctl-set-property.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include "bus-error.h"
   4 #include "bus-locator.h"
   5 #include "systemctl-set-property.h"
   6 #include "systemctl-util.h"
   7 #include "systemctl.h"
   8
   9 int set_property(int argc, char *argv[], void *userdata) {
  10         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
  11         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
  12         _cleanup_free_ char *n = NULL;
  13         UnitType t;
  14         sd_bus *bus;
  15         int r;
  16
  17         r = acquire_bus(BUS_MANAGER, &bus);
  18         if (r < 0)
  19                 return r;
  20
  21         polkit_agent_open_maybe();
  22
  23         r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "SetUnitProperties");
  24         if (r < 0)
  25                 return bus_log_create_error(r);
  26
  27         r = unit_name_mangle(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &n);
  28         if (r < 0)
  29                 return log_error_errno(r, "Failed to mangle unit name: %m");
  30
  31         t = unit_name_to_type(n);
  32         if (t < 0)
  33                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid unit type: %s", n);
  34
  35         r = sd_bus_message_append(m, "sb", n, arg_runtime);
  36         if (r < 0)
  37                 return bus_log_create_error(r);
  38
  39         r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
  40         if (r < 0)
  41                 return bus_log_create_error(r);
  42
  43         r = bus_append_unit_property_assignment_many(m, t, strv_skip(argv, 2));
  44         if (r < 0)
  45                 return r;
  46
  47         r = sd_bus_message_close_container(m);
  48         if (r < 0)
  49                 return bus_log_create_error(r);
  50
  51         r = sd_bus_call(bus, m, 0, &error, NULL);
  52         if (r < 0)
  53                 return log_error_errno(r, "Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
  54
  55         return 0;
  56 }