Author: sveinung
Date: Wed Mar 1 11:19:27 2017
New Revision: 35071
URL: http://svn.gna.org/viewcvs/freeciv?rev=35071&view=rev
Log:
Explain unexpected missing target.
Stop failing silently when an unit_do_action packet or an unit_action_query
packet with a missing target arrives.
A target could disappear at the same time the player presses a button in the
action selection dialog. A modified client may specify the target in a bad
way.
See gna patch #8121
Modified:
trunk/server/unithand.c
Modified: trunk/server/unithand.c
URL:
http://svn.gna.org/viewcvs/freeciv/trunk/server/unithand.c?rev=35071&r1=35070&r2=35071&view=diff
==============================================================================
--- trunk/server/unithand.c (original)
+++ trunk/server/unithand.c Wed Mar 1 11:19:27 2017
@@ -2061,48 +2061,48 @@
switch (action_type) {
case ACTION_SPY_BRIBE_UNIT:
- if (punit) {
- if (is_action_enabled_unit_on_unit(action_type,
- pactor, punit)) {
- dsend_packet_unit_action_answer(pc,
- actor_id, target_id,
- unit_bribe_cost(punit, pplayer),
- action_type);
- } else {
- illegal_action(pplayer, pactor, action_type, unit_owner(punit),
- NULL, NULL, punit, ACT_REQ_PLAYER);
- unit_query_impossible(pc, actor_id, target_id);
- return;
- }
+ if (punit
+ && is_action_enabled_unit_on_unit(action_type,
+ pactor, punit)) {
+ dsend_packet_unit_action_answer(pc,
+ actor_id, target_id,
+ unit_bribe_cost(punit, pplayer),
+ action_type);
+ } else {
+ illegal_action(pplayer, pactor, action_type,
+ punit ? unit_owner(punit) : NULL,
+ NULL, NULL, punit, ACT_REQ_PLAYER);
+ unit_query_impossible(pc, actor_id, target_id);
+ return;
}
break;
case ACTION_SPY_INCITE_CITY:
- if (pcity) {
- if (is_action_enabled_unit_on_city(action_type,
- pactor, pcity)) {
- dsend_packet_unit_action_answer(pc,
- actor_id, target_id,
- city_incite_cost(pplayer, pcity),
- action_type);
- } else {
- illegal_action(pplayer, pactor, action_type, city_owner(pcity),
- NULL, pcity, NULL, ACT_REQ_PLAYER);
- unit_query_impossible(pc, actor_id, target_id);
- return;
- }
+ if (pcity
+ && is_action_enabled_unit_on_city(action_type,
+ pactor, pcity)) {
+ dsend_packet_unit_action_answer(pc,
+ actor_id, target_id,
+ city_incite_cost(pplayer, pcity),
+ action_type);
+ } else {
+ illegal_action(pplayer, pactor, action_type,
+ pcity ? city_owner(pcity) : NULL,
+ NULL, pcity, NULL, ACT_REQ_PLAYER);
+ unit_query_impossible(pc, actor_id, target_id);
+ return;
}
break;
case ACTION_SPY_TARGETED_SABOTAGE_CITY:
- if (pcity) {
- if (is_action_enabled_unit_on_city(action_type,
- pactor, pcity)) {
- spy_send_sabotage_list(pc, pactor, pcity, action_type);
- } else {
- illegal_action(pplayer, pactor, action_type, city_owner(pcity),
- NULL, pcity, NULL, ACT_REQ_PLAYER);
- unit_query_impossible(pc, actor_id, target_id);
- return;
- }
+ if (pcity
+ && is_action_enabled_unit_on_city(action_type,
+ pactor, pcity)) {
+ spy_send_sabotage_list(pc, pactor, pcity, action_type);
+ } else {
+ illegal_action(pplayer, pactor, action_type,
+ pcity ? city_owner(pcity) : NULL,
+ NULL, pcity, NULL, ACT_REQ_PLAYER);
+ unit_query_impossible(pc, actor_id, target_id);
+ return;
}
break;
default:
@@ -2181,108 +2181,103 @@
}
#define ACTION_STARTED_UNIT_CITY(action, actor, target, action_performer) \
- if (pcity) { \
- if (is_action_enabled_unit_on_city(action_type, \
+ if (pcity \
+ && is_action_enabled_unit_on_city(action_type, \
actor_unit, pcity)) { \
- script_server_signal_emit("action_started_unit_city", 3, \
- API_TYPE_ACTION, action_by_number(action),\
- API_TYPE_UNIT, actor, \
- API_TYPE_CITY, target); \
- if (!actor || !unit_is_alive(actor_id)) { \
- /* Actor unit was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- if (!target || !city_exist(target_id)) { \
- /* Target city was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- return action_performer; \
- } else { \
- illegal_action(pplayer, actor_unit, action_type, \
- city_owner(pcity), NULL, pcity, NULL, \
- requester); \
+ script_server_signal_emit("action_started_unit_city", 3, \
+ API_TYPE_ACTION, action_by_number(action), \
+ API_TYPE_UNIT, actor, \
+ API_TYPE_CITY, target); \
+ if (!actor || !unit_is_alive(actor_id)) { \
+ /* Actor unit was destroyed during pre action Lua. */ \
+ return FALSE; \
} \
+ if (!target || !city_exist(target_id)) { \
+ /* Target city was destroyed during pre action Lua. */ \
+ return FALSE; \
+ } \
+ return action_performer; \
+ } else { \
+ illegal_action(pplayer, actor_unit, action_type, \
+ pcity ? city_owner(pcity) : NULL, NULL, pcity, NULL, \
+ requester); \
}
#define ACTION_STARTED_UNIT_SELF(action, actor, action_performer) \
- if (actor_unit) { \
- if (is_action_enabled_unit_on_self(action_type, actor_unit)) { \
- script_server_signal_emit("action_started_unit_self", 2, \
- API_TYPE_ACTION, action_by_number(action),\
- API_TYPE_UNIT, actor); \
- if (!actor || !unit_is_alive(actor_id)) { \
- /* Actor unit was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- return action_performer; \
- } else { \
- illegal_action(pplayer, actor_unit, action_type, \
- unit_owner(actor_unit), NULL, NULL, actor_unit, \
- requester); \
+ if (actor_unit \
+ && is_action_enabled_unit_on_self(action_type, actor_unit)) { \
+ script_server_signal_emit("action_started_unit_self", 2, \
+ API_TYPE_ACTION, action_by_number(action), \
+ API_TYPE_UNIT, actor); \
+ if (!actor || !unit_is_alive(actor_id)) { \
+ /* Actor unit was destroyed during pre action Lua. */ \
+ return FALSE; \
} \
+ return action_performer; \
+ } else { \
+ illegal_action(pplayer, actor_unit, action_type, \
+ unit_owner(actor_unit), NULL, NULL, actor_unit, \
+ requester); \
}
#define ACTION_STARTED_UNIT_UNIT(action, actor, target, action_performer) \
- if (punit) { \
- if (is_action_enabled_unit_on_unit(action_type, actor_unit, punit)) { \
- script_server_signal_emit("action_started_unit_unit", 3, \
- API_TYPE_ACTION, action_by_number(action),\
- API_TYPE_UNIT, actor, \
- API_TYPE_UNIT, target); \
- if (!actor || !unit_is_alive(actor_id)) { \
- /* Actor unit was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- if (!target || !unit_is_alive(target_id)) { \
- /* Target unit was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- return action_performer; \
- } else { \
- illegal_action(pplayer, actor_unit, action_type, \
- unit_owner(punit), NULL, NULL, punit, \
- requester); \
+ if (punit \
+ && is_action_enabled_unit_on_unit(action_type, actor_unit, punit)) {\
+ script_server_signal_emit("action_started_unit_unit", 3, \
+ API_TYPE_ACTION, action_by_number(action), \
+ API_TYPE_UNIT, actor, \
+ API_TYPE_UNIT, target); \
+ if (!actor || !unit_is_alive(actor_id)) { \
+ /* Actor unit was destroyed during pre action Lua. */ \
+ return FALSE; \
} \
+ if (!target || !unit_is_alive(target_id)) { \
+ /* Target unit was destroyed during pre action Lua. */ \
+ return FALSE; \
+ } \
+ return action_performer; \
+ } else { \
+ illegal_action(pplayer, actor_unit, action_type, \
+ punit ? unit_owner(punit) : NULL, NULL, NULL, punit, \
+ requester); \
}
#define ACTION_STARTED_UNIT_UNITS(action, actor, target, action_performer)\
- if (target_tile) { \
- if (is_action_enabled_unit_on_units(action_type, \
+ if (target_tile \
+ && is_action_enabled_unit_on_units(action_type, \
+ actor_unit, target_tile)) { \
+ script_server_signal_emit("action_started_unit_units", 3, \
+ API_TYPE_ACTION, action_by_number(action), \
+ API_TYPE_UNIT, actor, \
+ API_TYPE_TILE, target); \
+ if (!actor || !unit_is_alive(actor_id)) { \
+ /* Actor unit was destroyed during pre action Lua. */ \
+ return FALSE; \
+ } \
+ return action_performer; \
+ } else { \
+ illegal_action(pplayer, actor_unit, action_type, \
+ NULL, target_tile, NULL, NULL, \
+ requester); \
+ }
+
+#define ACTION_STARTED_UNIT_TILE(action, actor, target, action_performer) \
+ if (target_tile \
+ && is_action_enabled_unit_on_tile(action_type, \
actor_unit, target_tile)) { \
- script_server_signal_emit("action_started_unit_units", 3, \
- API_TYPE_ACTION, action_by_number(action),\
- API_TYPE_UNIT, actor, \
- API_TYPE_TILE, target); \
- if (!actor || !unit_is_alive(actor_id)) { \
- /* Actor unit was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- return action_performer; \
- } else { \
- illegal_action(pplayer, actor_unit, action_type, \
- NULL, target_tile, NULL, NULL, \
- requester); \
+ script_server_signal_emit("action_started_unit_tile", 3, \
+ API_TYPE_ACTION, action_by_number(action), \
+ API_TYPE_UNIT, actor, \
+ API_TYPE_TILE, target); \
+ if (!actor || !unit_is_alive(actor_id)) { \
+ /* Actor unit was destroyed during pre action Lua. */ \
+ return FALSE; \
} \
- }
-
-#define ACTION_STARTED_UNIT_TILE(action, actor, target, action_performer) \
- if (target_tile) { \
- if (is_action_enabled_unit_on_tile(action_type, \
- actor_unit, target_tile)) { \
- script_server_signal_emit("action_started_unit_tile", 3, \
- API_TYPE_ACTION, action_by_number(action),\
- API_TYPE_UNIT, actor, \
- API_TYPE_TILE, target); \
- if (!actor || !unit_is_alive(actor_id)) { \
- /* Actor unit was destroyed during pre action Lua. */ \
- return FALSE; \
- } \
- return action_performer; \
- } else { \
- illegal_action(pplayer, actor_unit, action_type, \
- NULL, target_tile, NULL, NULL, \
- requester); \
- } \
+ return action_performer; \
+ } else { \
+ illegal_action(pplayer, actor_unit, action_type, \
+ NULL, target_tile, NULL, NULL, \
+ requester); \
}
switch(action_type) {
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