readm.cpp

// (C) John Peterson. License GNU GPL 3.
// Binary stdin/stdout pass-through.
#include <iostream>
#include <stdint.h>
#include <sys/stat.h>
typedef uint8_t u8;
typedef uint32_t u32;
int main(int argc, char **argv) {
    const u32 len = 0x2000;
    u8 buf[len];
    u32 size;
    freopen(NULL, "rb", stdin);
    freopen(NULL, "wb", stdout);
    while (true) {
        size = read(STDIN_FILENO, buf, len);
        if (size == 0) break;
        write(STDOUT_FILENO, buf, size);
    }
    return 0;
}