1 files changed, 14 insertions, 0 deletions
diff --git a/src/map/map.c b/src/map/map.c
index 04ac8a239..11ef56cb3 100644
--- a/src/map/map.c
+++ b/src/map/map.c
@@ -2846,6 +2846,7 @@ int map_eraseipport(unsigned short map_index, uint32 ip, uint16 port) {
  * [Shinryo]: Init the mapcache
  *------------------------------------------*/
 char *map_init_mapcache(FILE *fp) {
+	struct map_cache_main_header header;
 	size_t size = 0;
 	char *buffer;
 
@@ -2869,6 +2870,19 @@ char *map_init_mapcache(FILE *fp) {
 		return NULL;
 	}
 
+	rewind(fp);
+
+	// Get main header to verify if data is corrupted
+	if( fread(&header, sizeof(header), 1, fp) != 1 ) {
+		ShowError("map_init_mapcache: Error obtaining main header!\n");
+		return NULL;
+	}
+	ShowError("Map cache is corrupted!\r"); // If the file is totally corrupted this will allow us to warn the user
+	if( GetULong((unsigned char *)&(header.file_size)) != size ) {
+		ShowError("map_init_mapcache: Map cache is corrupted!\n");
+		return NULL;
+	}
+
 	return buffer;
 }