]> git.draconx.ca Git - upkg.git/blobdiff - src/uobject/uobject.c
Stop using gnulib's flexmember module.
[upkg.git] / src / uobject / uobject.c
index 74734dd1bfd0c73758fe73698c66b66aca0ff292..cf07735d3b500fa935a1b86fc79f835e309c017d 100644 (file)
@@ -1,26 +1,27 @@
 /*
- *  upkg: tool for manipulating Unreal Tournament packages.
- *  Copyright © 2009-2011 Nick Bowler
+ * upkg: tool for manipulating Unreal Tournament packages.
+ * Copyright © 2009-2012, 2015, 2020, 2022 Nick Bowler
  *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <math.h>
 #include <stdarg.h>
-#include <stdbool.h>
 #include <inttypes.h>
 #include <assert.h>
 #include <glib-object.h>
 #define U_OBJECT_GET_PRIV(o) \
        G_TYPE_INSTANCE_GET_PRIVATE(o, U_TYPE_OBJECT, struct u_object_priv)
 
+#ifndef SIZE_MAX
+#  define SIZE_MAX ((size_t)-1)
+#endif
 
 struct prop_head {
        const char *prop_name, *struct_name;
        unsigned long size, array_idx;
-       bool tag_msb;
+       gboolean tag_msb;
 
        enum {
                PROPERTY_END,
@@ -277,6 +281,21 @@ out:
        return obj;
 }
 
+GObject *u_object_get_by_link(GObject *go, long index)
+{
+       g_return_val_if_fail(IS_U_OBJECT(go), NULL);
+       UObject *uo = U_OBJECT(go);
+
+       if (index == 0)
+               return NULL;
+
+       if (index < 0) {
+               return get_import_object(uo, -(index+1));
+       }
+
+       return u_object_new_from_package(uo->pkg, index-1);
+}
+
 static int decode_object_property(UObject *uo, GValue *val, unsigned long len)
 {
        struct u_object_priv *priv = U_OBJECT_GET_PRIV(uo);
@@ -285,15 +304,10 @@ static int decode_object_property(UObject *uo, GValue *val, unsigned long len)
        int rc;
 
        rc = upkg_decode_index(&index, priv->buf+len, priv->nbuf-len);
-       if (rc == 0 || index == 0)
+       if (rc == 0)
                return -1;
 
-       if (index < 0) {
-               obj = get_import_object(uo, -(index+1));
-       } else {
-               obj = u_object_new_from_package(uo->pkg, index-1);
-       }
-
+       obj = u_object_get_by_link(G_OBJECT(uo), index);
        g_value_init(val, U_TYPE_OBJECT);
        g_value_take_object(val, obj);
        return 0;
@@ -314,20 +328,22 @@ static unsigned long deserialize_property(UObject *uo, struct prop_head *head)
        case PROPERTY_END:
                break;
        case PROPERTY_BYTE:
-               if (priv->nbuf-len < 1)
+               if (head->size != 1 || priv->nbuf-len < head->size)
                        return 0;
                g_value_init(&val, G_TYPE_UCHAR);
                g_value_set_uchar(&val, priv->buf[len]);
                g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
                break;
        case PROPERTY_INTEGER:
-               if (priv->nbuf-len < 4)
+               if (head->size != 4 || priv->nbuf-len < head->size)
                        return 0;
                g_value_init(&val, G_TYPE_ULONG);
                g_value_set_ulong(&val, unpack_32_le(priv->buf+len));
                g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
                break;
        case PROPERTY_BOOLEAN:
+               if (head->size != 0)
+                       return 0;
                g_value_init(&val, G_TYPE_BOOLEAN);
                g_value_set_boolean(&val, head->tag_msb);
                g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
@@ -337,10 +353,23 @@ static unsigned long deserialize_property(UObject *uo, struct prop_head *head)
                if (rc != 0)
                        return 0;
                g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
+
+               /*
+                * g_object_set_property increments refcount,
+                * release our reference.
+                */
+               g_object_unref(g_value_get_object(&val));
+               break;
+       case PROPERTY_FLOAT:
+               if (head->size != 4 || priv->nbuf-len < head->size)
+                       return 0;
+               g_value_init(&val, G_TYPE_FLOAT);
+               g_value_set_float(&val, u_unpack_binary32_le(priv->buf+len));
+               g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
                break;
        default:
-               fprintf(stderr, "Unhandled property type %x\n",
-                               (unsigned)head->type);
+               u_warn(uo, "%s: unsupported property type %u",
+                          head->prop_name, (unsigned)head->type);
        }
        len += head->size;
 
@@ -479,13 +508,17 @@ GObject *u_object_new_from_package(GTypeModule *pkg, unsigned long idx)
 {
        g_return_val_if_fail(IS_U_PKG(pkg), NULL);
 
-       const char *class, *package;
+       const struct upkg_export *export;
        GObject *obj = NULL;
        GType type;
 
-       class = upkg_export_class(U_PKG(pkg)->pkg, idx, &package);
+       export = upkg_get_export(U_PKG(pkg)->pkg, idx);
+       if (!export) {
+               u_err(pkg, "invalid package export: %lu", idx);
+               return NULL;
+       }
 
-       type = u_object_module_get_class(package, class);
+       type = u_object_module_get_class(pkg, export->class);
        if (type) {
                obj = g_object_new(type, NULL);
                if (u_object_deserialize(obj, pkg, idx) != 0) {
@@ -565,18 +598,20 @@ static char *prepend_fmt(const char *prefix, const char *fmt)
 /* Logging helpers that automatically prepend the UObject class information. */
 void u_vlog_full(GObject *o, GLogLevelFlags level, const char *fmt, va_list ap)
 {
-       g_return_if_fail(IS_U_OBJECT(o));
-       UObject *uo = U_OBJECT(o);
-       char *new_fmt = NULL;
-
-       if (uo->pkg_name) {
-               new_fmt = prepend_fmt(uo->pkg_name, fmt);
-               if (!new_fmt) {
-                       g_log(G_OBJECT_TYPE_NAME(o), level, "%s",
-                             uo->pkg_file->name);
-               } else {
+       char *new_fmt = NULL, *obj_prefix = NULL;
+
+       if (IS_U_OBJECT(o)) {
+               obj_prefix = U_OBJECT(o)->pkg_name;
+       } else if (G_IS_TYPE_MODULE(o)) {
+               obj_prefix = G_TYPE_MODULE(o)->name;
+       }
+
+       if (obj_prefix) {
+               new_fmt = prepend_fmt(obj_prefix, fmt);
+               if (!new_fmt)
+                       g_log(G_OBJECT_TYPE_NAME(o), level, "%s", obj_prefix);
+               else
                        fmt = new_fmt;
-               }
        }
 
        g_logv(G_OBJECT_TYPE_NAME(o), level, fmt, ap);