ref: 1ac5e0b7e3590708e5e2adb967bb66160027b44c
dir: /lib/c/stdio.c/
#include <stdio.h> static unsigned char inbuf[BUFSIZ]; static unsigned char outbuf[BUFSIZ]; FILE __iob[FOPEN_MAX] = { { .fd = 0, .buf = inbuf, .len = BUFSIZ, .flags = _IOREAD }, { .fd = 1, .buf = outbuf, .len = BUFSIZ, .flags = _IOWRITE | _IOLBF }, { .fd = 2, .buf = stderr->unbuf, .len = sizeof(stderr->unbuf), .flags = _IOWRITE }, };