1 files changed, 24 insertions, 0 deletions
diff --git a/userspace/sys/sys.c b/userspace/sys/sys.c
index ef0d1df..1ab3579 100644
--- a/userspace/sys/sys.c
+++ b/userspace/sys/sys.c
@@ -3,6 +3,30 @@
 #include <sys/stat.h>
 
 
+// CODE FOR Stack Smashing Protector, TODO: MOVE / and do not duplicate
+// with kernel.c
+// http://wiki.osdev.org/Stack_Smashing_Protector
+#include <stdint.h>
+#include <stdlib.h>
+ 
+#if UINT32_MAX == UINTPTR_MAX
+#define STACK_CHK_GUARD 0xe2dee396
+#else
+#define STACK_CHK_GUARD 0x595e9fbd94fda766
+#endif
+ 
+uintptr_t __stack_chk_guard = STACK_CHK_GUARD;
+ 
+__attribute__((noreturn))
+void __stack_chk_fail(void)
+{
+    write(1,"stack smashing!\n",16);
+    exit(99);
+}
+
+
+///////////////////
+
 // required by binutils!
 
 long sysconf(int name)