The exact same functionality, but not waiting for carriage return

li1c.c

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

/* If it is the carriage return thing, here is the exact same
 * functionality, but also setting termio.
 * NOTE:  I have no idea what the performance implications of calling
 *        `tcgetaddr`/`tcsetaddr` for this little routine would be
 *        or whether it is acceptable in your situation.
 */
void li1c( char * c) {
    static struct termios old, new;

    tcgetattr(STDIN_FILENO, &old);

    new = old;
    new.c_lflag &= ~(ICANON);

    tcsetattr(STDIN_FILENO, TCSANOW, &new);

    *(c++) = getc(stdin);
    *c = '\0';

    tcsetattr( STDIN_FILENO, TCSANOW, &old);
}