# HG changeset patch
# User Darkvater
# Date 1166647432 0
# Node ID 0d7cc9cefd2b1d315a2a6e37787ed671b3a83c18
# Parent  00c5ff01191ab501e4b9364e503974fc54d43a36
(svn r7517) -Codechange: Set pointers to NULL when freeing the newgrf config variables and add the proper const to CopyGRFConfigList

diff -r 00c5ff01191a -r 0d7cc9cefd2b newgrf_config.c
--- a/newgrf_config.c	Wed Dec 20 19:16:44 2006 +0000
+++ b/newgrf_config.c	Wed Dec 20 20:43:52 2006 +0000
@@ -82,15 +82,16 @@
 }
 
 
-void ClearGRFConfig(GRFConfig *config)
+void ClearGRFConfig(GRFConfig **config)
 {
 	/* GCF_COPY as in NOT strdupped/alloced the filename, name and info */
-	if (!HASBIT(config->flags, GCF_COPY)) {
-		free(config->filename);
-		free(config->name);
-		free(config->info);
+	if (!HASBIT((*config)->flags, GCF_COPY)) {
+		free((*config)->filename);
+		free((*config)->name);
+		free((*config)->info);
 	}
-	free(config);
+	free(*config);
+	*config = NULL;
 }
 
 
@@ -100,13 +101,13 @@
 	GRFConfig *c, *next;
 	for (c = config; c != NULL; c = next) {
 		next = c->next;
-		ClearGRFConfig(c);
+		ClearGRFConfig(&c);
 	}
 }
 
 
 /* Copy a GRF Config list */
-static GRFConfig **CopyGRFConfigList(GRFConfig **dst, GRFConfig *src)
+GRFConfig **CopyGRFConfigList(GRFConfig **dst, const GRFConfig *src)
 {
 	GRFConfig *c;
 
diff -r 00c5ff01191a -r 0d7cc9cefd2b newgrf_config.h
--- a/newgrf_config.h	Wed Dec 20 19:16:44 2006 +0000
+++ b/newgrf_config.h	Wed Dec 20 20:43:52 2006 +0000
@@ -43,7 +43,8 @@
 void ScanNewGRFFiles(void);
 const GRFConfig *FindGRFConfig(uint32 grfid, uint8 *md5sum);
 GRFConfig *GetGRFConfig(uint32 grfid);
-void ClearGRFConfig(GRFConfig *config);
+GRFConfig **CopyGRFConfigList(GRFConfig **dst, const GRFConfig *src);
+void ClearGRFConfig(GRFConfig **config);
 void ClearGRFConfigList(GRFConfig *config);
 void ResetGRFConfig(bool defaults);
 bool IsGoodGRFConfigList(void);
diff -r 00c5ff01191a -r 0d7cc9cefd2b settings.c
--- a/settings.c	Wed Dec 20 19:16:44 2006 +0000
+++ b/settings.c	Wed Dec 20 20:43:52 2006 +0000
@@ -1534,7 +1534,7 @@
 			}
 
 			ShowInfoF("ini: ignoring invalid NewGRF '%s': %s", item->name, msg);
-			ClearGRFConfig(c);
+			ClearGRFConfig(&c);
 			continue;
 		}