ref: 4a9cb6d18a8757cbf41789e38730362c4ae0797a 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"