Can't ouput charcter until newline in C

Code:

#define CTRL(key) ((key) & 0x1f)
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <stdio.h>


struct termios orig_termios;
void rawOff() {
    tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
}

void rawOn() {
    tcgetattr(STDIN_FILENO, &orig_termios);
    atexit(rawOff);
    struct termios raw = orig_termios;
    raw.c_iflag &= ~(IXON);
    raw.c_lflag &= ~(ICANON | ECHO | IEXTEN);
    tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);
}

int main() {
    rawOn();
    while (1) {
        char x;
        read(STDIN_FILENO, &x, 1);
        //printf("%c", x);
	putchar(x);
        if (x == CTRL('q')) {
            return(0);
        }
    }
}

Code:

setvbuf(stdout, 0, _IONBF, 0);