NULL               44 lib/libkern/memchr.c #define	NULL	((char *)0)
NULL               42 lib/libkern/strchr.c #define NULL	((char *)0)
NULL               43 lib/libsa/stand.h #define	NULL	0
NULL               63 net/zlib.c     #define NULL	((void *) 0)
NULL               49 sys/param.h    #define	NULL	__null
NULL               51 sys/param.h    #define	NULL	0L