Mapteclado

#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<termios.h>


//mapeamento do teclado

#define especial 27
#define especial2 91
#define cima 65
#define baixo 66
#define enter 10
#define espaco 32
#define backspace 127


void init_attr(struct termios *old_attr,struct termios *new_attr){
    tcgetattr(0,&*old_attr);

    *new_attr=*old_attr;
    new_attr->c_lflag &=~ICANON;
    new_attr->c_cc[VMIN]=1;
    new_attr->c_cc[VTIME]=0;
}

int getch(){
    struct termios old_attr, new_attr;
    int c;

    init_attr(&old_attr,&new_attr);

    new_attr.c_lflag &=~ECHO;

    tcsetattr(STDIN_FILENO,TCSANOW,&new_attr);

    c=getchar();

    tcsetattr(STDIN_FILENO,TCSANOW,&old_attr);

    return c;
}


int main(){

    for(;;){

        int c = getch();
        char a;

        if(c == especial){
            c = getch();

            if(c == especial2){
                c = getch();

                if(c == cima){
                    printf("CIMA\n");
                }else if(c == baixo){
                    printf("BAIXO\n");
                }
            }
        }else if(c == enter){
                    printf("ENTER\n");
        }else if(c == espaco){
            printf("ESPACO\n");
        }else if(c == backspace){
            printf("BACKSPACE\n");
        }else{
            a = (char) c;
            printf("%c\n",a);
        }
    }
}