fix allocations overflow crash

.gitignore

@@ -2,6 +2,7 @@ out/
 .vscode/
 *.orig
 eressea.ini
+CMakeUserPresets.json
 Debug
 Release
 

CMakePresets.json

@@ -0,0 +1,13 @@
+{
+  "version": 2,
+  "configurePresets": [
+    {
+      "name": "vcpkg",
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/build",
+      "cacheVariables": {
+        "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
+      }
+    }
+  ]
+}

src/bindings.c

@@ -830,6 +830,26 @@ static void parse_inifile(lua_State * L, const dictionary * d, const char *secti
     const char *arg;
     size_t len = strlen(section);
 
+    /* defaults */
+    arg = config_get("config.install");
+    if (arg) {
+        lua_pushstring(L, "install");
+        lua_pushstring(L, arg);
+        lua_rawset(L, -3);
+    }
+    lua_pushstring(L, "basepath");
+    lua_pushstring(L, basepath());
+    lua_rawset(L, -3);
+    lua_pushstring(L, "reportpath");
+    lua_pushstring(L, reportpath());
+    lua_rawset(L, -3);
+    arg = config_get("config.rules");
+    if (arg) {
+        lua_pushstring(L, "rules");
+        lua_pushstring(L, arg);
+        lua_rawset(L, -3);
+    }
+
     for (i = 0; d && i != d->n; ++i) {
         const char *key = d->key[i];
         if (strncmp(section, key, len) == 0 && key[len] == ':') {
@@ -846,20 +866,6 @@ static void parse_inifile(lua_State * L, const dictionary * d, const char *secti
             lua_rawset(L, -3);
         }
     }
-
-    /* special case */
-    lua_pushstring(L, "basepath");
-    lua_pushstring(L, basepath());
-    lua_rawset(L, -3);
-    lua_pushstring(L, "reportpath");
-    lua_pushstring(L, reportpath());
-    lua_rawset(L, -3);
-    arg = config_get("config.rules");
-    if (arg) {
-        lua_pushstring(L, "rules");
-        lua_pushstring(L, arg);
-        lua_rawset(L, -3);
-    }
 }
 
 static int lua_rng_default(lua_State *L) {

src/economy.c

@@ -948,13 +948,17 @@ attrib_allocation(const resource_type * rtype, region * r, allocation * alist)
     for (al = alist; al; al = al->next) {
         if (avail > 0) {
             int want = required(al->want, al->save);
-            int x = avail * want / nreq;
-            int rx = (avail * want) % nreq;
+            long long dx = (long long)avail * want / nreq;
+            int x, rx = (avail * want) % nreq;
+
+            assert(dx < INT_MAX && dx >= 0);
+            x = (int)dx;
             /* Wenn Rest, dann wuerfeln, ob ich was bekomme: */
             if (rx > 0 && rng_int() % nreq < rx) ++x;
             avail -= x;
             nreq -= want;
             al->get = x * al->save.sa[1] / al->save.sa[0];
+            assert(al->get >= 0);
             if (al->want < al->get) al->get = al->want;
             if (!rtype->raw) {
                 int use = required(al->get, al->save);

src/main.c

@@ -199,6 +199,10 @@ static int parse_args(int argc, char **argv)
             case 'D':
                 config_set("config.debug", "1");
                 break;
+            case 'i':
+                i = get_arg(argc, argv, 2, i, &arg, 0);
+                config_set("config.install", arg);
+                break;
             case 'c':
                 i = get_arg(argc, argv, 2, i, &arg, 0);
                 config_set("config.path", arg);