ref: 95552e35a889ea98c511ffc72ebc62d9fd48121a dir: /include/bits/darwin/sys/stdio.h/
#define BUFSIZ 512 #define FILENAME_MAX 256 #define FOPEN_MAX 16 #define TMP_MAX 25 #define L_tmpnam 256 #define _TMPNAME "/tmp/tmp.0000000"