redefine 'l_sprintf' to test correctness of buffer sizes given

to 'snprintf'

1 files changed, 10 insertions, 1 deletions

diff --git a/ltests.h b/ltests.h
index 18ae9a01..d3404aa4 100644
--- a/ltests.h
+++ b/ltests.h
@@ -1,5 +1,5 @@
 /*
-** $Id: ltests.h,v 2.46 2014/12/19 13:33:06 roberto Exp roberto $
+** $Id: ltests.h,v 2.47 2014/12/26 14:44:44 roberto Exp roberto $
 ** Internal Header for Debugging of the Lua Implementation
 ** See Copyright Notice in lua.h
 */
@@ -37,6 +37,15 @@
 #define UNUSED(x)       (x=0, (void)(x))
 
 
+/* test for sizes in 'l_sprintf' (make sure whole buffer is available) */
+#undef l_sprintf
+#if !defined(LUA_USE_C89)
+#define l_sprintf(s,sz,f,i)     (memset(s,0xAB,sz), snprintf(s,sz,f,i))
+#else
+#define l_sprintf(s,sz,f,i)     (memset(s,0xAB,sz), sprintf(s,f,i))
+#endif
+
+
 /* memory-allocator control variables */
 typedef struct Memcontrol {
   unsigned long numblocks;