8548 want memset_s(3C)
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 63,72 ****
--- 63,92 ----
  #if !defined(_STRICT_SYMBOLS) || defined(_STDC_C11) || __cplusplus >= 201103L
  extern int at_quick_exit(void (*)(void));
  extern _NORETURN_KYWD void quick_exit(int);
  #endif /* !_STRICT_SYMBOLS || _STDC_C11 || __cplusplus >= 201103L */
  
+ #if __EXT1_VISIBLE
+ 
+ #ifndef _ERRNO_T_DEFINED
+ #define _ERRNO_T_DEFINED
+ typedef int errno_t;
+ #endif
+ 
+ /* K.3.6 */
+ typedef void (*constraint_handler_t)(const char *_RESTRICT_KYWD,
+     void *_RESTRICT_KYWD, errno_t);
+ /* K.3.6.1.1 */
+ extern constraint_handler_t set_constraint_handler_s(constraint_handler_t);
+ /* K.3.6.1.2 */
+ extern _NORETURN_KYWD void abort_handler_s(const char *_RESTRICT_KYWD,
+     void *_RESTRICT_KYWD, errno_t);
+ /* K3.6.1.3 */
+ extern void ignore_handler_s(const char *_RESTRICT_KYWD, void *_RESTRICT_KYWD,
+     errno_t);
+ #endif  /* __EXT1_VISIBLE */
+ 
  #if __cplusplus >= 199711L
  }
  #endif
  
  #ifdef __cplusplus