ref: a634369fb989684a8080794e9a96cf34b6ff81d6 dir: /include/bits/dragonfly/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"