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 static int set_property_one(sd_bus *bus, const char *name, char **properties) {
  10         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
  11         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
  12         int r;
  13
  14         r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "SetUnitProperties");
  15         if (r < 0)
  16                 return bus_log_create_error(r);
  17
  18         UnitType t = unit_name_to_type(name);
  19         if (t < 0)
  20                 return log_error_errno(t, "Invalid unit type: %s", name);
  21
  22         r = sd_bus_message_append(m, "sb", name, arg_runtime);
  23         if (r < 0)
  24                 return bus_log_create_error(r);
  25
  26         r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
  27         if (r < 0)
  28                 return bus_log_create_error(r);
  29
  30         r = bus_append_unit_property_assignment_many(m, t, properties);
  31         if (r < 0)
  32                 return r;
  33
  34         r = sd_bus_message_close_container(m);
  35         if (r < 0)
  36                 return bus_log_create_error(r);
  37
  38         r = sd_bus_call(bus, m, 0, &error, NULL);
  39         if (r < 0)
  40                 return log_error_errno(r, "Failed to set unit properties on %s: %s",
  41                                        name, bus_error_message(&error, r));
  42
  43         return 0;
  44 }
  45
  46 int verb_set_property(int argc, char *argv[], void *userdata) {
  47         sd_bus *bus;
  48         _cleanup_strv_free_ char **names = NULL;
  49         char **name;
  50         int r, k;
  51
  52         r = acquire_bus(BUS_MANAGER, &bus);
  53         if (r < 0)
  54                 return r;
  55
  56         polkit_agent_open_maybe();
  57
  58         r = expand_unit_names(bus, STRV_MAKE(argv[1]), NULL, &names, NULL);
  59         if (r < 0)
  60                 return log_error_errno(r, "Failed to expand '%s' into names: %m", argv[1]);
  61
  62         r = 0;
  63         STRV_FOREACH(name, names) {
  64                 k = set_property_one(bus, *name, strv_skip(argv, 2));
  65                 if (k < 0 && r >= 0)
  66                         r = k;
  67         }
  68         return r;
  69 }