ignore world-writeable my.cnf's

mysys/default.c

@@ -39,6 +39,7 @@
 #include "mysys_priv.h"
 #include "m_string.h"
 #include "m_ctype.h"
+#include <my_dir.h>
 
 char *defaults_extra_file=0;
 
@@ -66,7 +67,7 @@ NullS,
 #define windows_ext	".ini"
 #endif
 
-static my_bool search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
+static my_bool search_default_file(DYNAMIC_ARRAY *args,MEM_ROOT *alloc,
 				   const char *dir, const char *config_file,
 				   const char *ext, TYPELIB *group);
 
@@ -241,6 +242,16 @@ static my_bool search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
   {
     strmov(name,config_file);
   }
+  fn_format(name,name,"","",4);
+#if !defined(__WIN__) && !defined(OS2)
+  {
+    MY_STAT stat_info;
+    if (!my_stat(name,&stat_info,MYF(MY_WME)))
+      return 0;
+    if (stat_info.st_mode & S_IWOTH) /* ignore world-writeable files */
+      return 0;
+  }
+#endif
   if (!(fp = my_fopen(fn_format(name,name,"","",4),O_RDONLY,MYF(0))))
     return 0;					/* Ignore wrong files */